From 52239484bf8aec031afa84ae08aa88224d819b93 Mon Sep 17 00:00:00 2001 From: Libin Date: Thu, 5 Sep 2013 18:57:56 +0800 Subject: [PATCH 001/350] x86/smpboot: Fix announce_cpu() to printk() the last "OK" properly When booting secondary CPUs, announce_cpu() is called to show which cpu has been brought up. For example: [ 0.402751] smpboot: Booting Node 0, Processors #1 #2 #3 #4 #5 OK [ 0.525667] smpboot: Booting Node 1, Processors #6 #7 #8 #9 #10 #11 OK [ 0.755592] smpboot: Booting Node 0, Processors #12 #13 #14 #15 #16 #17 OK [ 0.890495] smpboot: Booting Node 1, Processors #18 #19 #20 #21 #22 #23 But the last "OK" is lost, because 'nr_cpu_ids-1' represents the maximum possible cpu id. It should use the maximum present cpu id in case not all CPUs booted up. Signed-off-by: Libin Cc: Cc: Cc: Cc: Link: http://lkml.kernel.org/r/1378378676-18276-1-git-send-email-huawei.libin@huawei.com [ tweaked the changelog, removed unnecessary line break, tweaked the format to align the fields vertically. ] Signed-off-by: Ingo Molnar --- arch/x86/kernel/smpboot.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index aecc98a93d1b..6cacab671f9b 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -653,6 +653,7 @@ static void announce_cpu(int cpu, int apicid) { static int current_node = -1; int node = early_cpu_to_node(cpu); + int max_cpu_present = find_last_bit(cpumask_bits(cpu_present_mask), NR_CPUS); if (system_state == SYSTEM_BOOTING) { if (node != current_node) { @@ -661,7 +662,7 @@ static void announce_cpu(int cpu, int apicid) current_node = node; pr_info("Booting Node %3d, Processors ", node); } - pr_cont(" #%d%s", cpu, cpu == (nr_cpu_ids - 1) ? " OK\n" : ""); + pr_cont(" #%4d%s", cpu, cpu == max_cpu_present ? " OK\n" : ""); return; } else pr_info("Booting Node %d Processor %d APIC 0x%x\n", From 9a12a30627f76f839e81beba243371a60a5aa1db Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Thu, 5 Sep 2013 17:53:57 +0100 Subject: [PATCH 002/350] sfc: Minimal support for 40G link speed Accept and handle 40G link events. Accept ethtool link settings of speed == 40000 && duplex, and set the appropriate MCDI PHY capability. This does not include reporting of 40G media types, as those have not yet been assigned numbers in the MCDI protocol. Signed-off-by: Ben Hutchings --- drivers/net/ethernet/sfc/Kconfig | 2 +- drivers/net/ethernet/sfc/mcdi_port.c | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/sfc/Kconfig b/drivers/net/ethernet/sfc/Kconfig index 8b7152565c5e..088921294448 100644 --- a/drivers/net/ethernet/sfc/Kconfig +++ b/drivers/net/ethernet/sfc/Kconfig @@ -7,7 +7,7 @@ config SFC select I2C_ALGOBIT select PTP_1588_CLOCK ---help--- - This driver supports 10-gigabit Ethernet cards based on + This driver supports 10/40-gigabit Ethernet cards based on the Solarflare SFC4000, SFC9000-family and SFC9100-family controllers. diff --git a/drivers/net/ethernet/sfc/mcdi_port.c b/drivers/net/ethernet/sfc/mcdi_port.c index 8d33da6697fb..7b6be61d549f 100644 --- a/drivers/net/ethernet/sfc/mcdi_port.c +++ b/drivers/net/ethernet/sfc/mcdi_port.c @@ -556,6 +556,7 @@ static int efx_mcdi_phy_set_settings(struct efx_nic *efx, struct ethtool_cmd *ec case 100: caps = 1 << MC_CMD_PHY_CAP_100FDX_LBN; break; case 1000: caps = 1 << MC_CMD_PHY_CAP_1000FDX_LBN; break; case 10000: caps = 1 << MC_CMD_PHY_CAP_10000FDX_LBN; break; + case 40000: caps = 1 << MC_CMD_PHY_CAP_40000FDX_LBN; break; default: return -EINVAL; } } else { @@ -841,6 +842,7 @@ static unsigned int efx_mcdi_event_link_speed[] = { [MCDI_EVENT_LINKCHANGE_SPEED_100M] = 100, [MCDI_EVENT_LINKCHANGE_SPEED_1G] = 1000, [MCDI_EVENT_LINKCHANGE_SPEED_10G] = 10000, + [MCDI_EVENT_LINKCHANGE_SPEED_40G] = 40000, }; void efx_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev) From fd4daa9cea025ddf8623db289e79d264e9fa66f6 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Tue, 27 Aug 2013 17:04:17 +0100 Subject: [PATCH 003/350] drm/i915: Track pfit enable state separately from size Detangle the additional state of whether or not the hw has the pfit enabled from whether it has zero size. This allows us to cleanly distinguish in the code when we expect the pfit to be enabled (for Haswell pc8), and when the BIOS is confused and needs sanitizing. Reported-by: shui yanwei Signed-off-by: Chris Wilson Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=68251 Tested-by: shui yanwei Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_ddi.c | 2 +- drivers/gpu/drm/i915/intel_display.c | 21 +++++++++++++-------- drivers/gpu/drm/i915/intel_drv.h | 1 + drivers/gpu/drm/i915/intel_panel.c | 1 + drivers/gpu/drm/i915/intel_pm.c | 6 +++--- 5 files changed, 19 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index 63aca49d11a8..63de2701b974 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -778,7 +778,7 @@ void intel_ddi_enable_transcoder_func(struct drm_crtc *crtc) /* Can only use the always-on power well for eDP when * not using the panel fitter, and when not using motion * blur mitigation (which we don't support). */ - if (intel_crtc->config.pch_pfit.size) + if (intel_crtc->config.pch_pfit.enabled) temp |= TRANS_DDI_EDP_INPUT_A_ONOFF; else temp |= TRANS_DDI_EDP_INPUT_A_ON; diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 2489d0b4c7d2..375e6a76a755 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2249,7 +2249,7 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, I915_WRITE(PIPESRC(intel_crtc->pipe), ((crtc->mode.hdisplay - 1) << 16) | (crtc->mode.vdisplay - 1)); - if (!intel_crtc->config.pch_pfit.size && + if (!intel_crtc->config.pch_pfit.enabled && (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) || intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP))) { I915_WRITE(PF_CTL(intel_crtc->pipe), 0); @@ -3203,7 +3203,7 @@ static void ironlake_pfit_enable(struct intel_crtc *crtc) struct drm_i915_private *dev_priv = dev->dev_private; int pipe = crtc->pipe; - if (crtc->config.pch_pfit.size) { + if (crtc->config.pch_pfit.enabled) { /* Force use of hard-coded filter coefficients * as some pre-programmed values are broken, * e.g. x201. @@ -3428,7 +3428,7 @@ static void ironlake_pfit_disable(struct intel_crtc *crtc) /* To avoid upsetting the power well on haswell only disable the pfit if * it's in use. The hw state code will make sure we get this right. */ - if (crtc->config.pch_pfit.size) { + if (crtc->config.pch_pfit.enabled) { I915_WRITE(PF_CTL(pipe), 0); I915_WRITE(PF_WIN_POS(pipe), 0); I915_WRITE(PF_WIN_SZ(pipe), 0); @@ -5859,6 +5859,7 @@ static void ironlake_get_pfit_config(struct intel_crtc *crtc, tmp = I915_READ(PF_CTL(crtc->pipe)); if (tmp & PF_ENABLE) { + pipe_config->pch_pfit.enabled = true; pipe_config->pch_pfit.pos = I915_READ(PF_WIN_POS(crtc->pipe)); pipe_config->pch_pfit.size = I915_READ(PF_WIN_SZ(crtc->pipe)); @@ -6236,7 +6237,7 @@ static void haswell_modeset_global_resources(struct drm_device *dev) if (!crtc->base.enabled) continue; - if (crtc->pipe != PIPE_A || crtc->config.pch_pfit.size || + if (crtc->pipe != PIPE_A || crtc->config.pch_pfit.enabled || crtc->config.cpu_transcoder != TRANSCODER_EDP) enable = true; } @@ -8205,9 +8206,10 @@ static void intel_dump_pipe_config(struct intel_crtc *crtc, pipe_config->gmch_pfit.control, pipe_config->gmch_pfit.pgm_ratios, pipe_config->gmch_pfit.lvds_border_bits); - DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x\n", + DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n", pipe_config->pch_pfit.pos, - pipe_config->pch_pfit.size); + pipe_config->pch_pfit.size, + pipe_config->pch_pfit.enabled ? "enabled" : "disabled"); DRM_DEBUG_KMS("ips: %i\n", pipe_config->ips_enabled); } @@ -8603,8 +8605,11 @@ intel_pipe_config_compare(struct drm_device *dev, if (INTEL_INFO(dev)->gen < 4) PIPE_CONF_CHECK_I(gmch_pfit.pgm_ratios); PIPE_CONF_CHECK_I(gmch_pfit.lvds_border_bits); - PIPE_CONF_CHECK_I(pch_pfit.pos); - PIPE_CONF_CHECK_I(pch_pfit.size); + PIPE_CONF_CHECK_I(pch_pfit.enabled); + if (current_config->pch_pfit.enabled) { + PIPE_CONF_CHECK_I(pch_pfit.pos); + PIPE_CONF_CHECK_I(pch_pfit.size); + } PIPE_CONF_CHECK_I(ips_enabled); diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index a47799e832c6..28cae80495e2 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -280,6 +280,7 @@ struct intel_crtc_config { struct { u32 pos; u32 size; + bool enabled; } pch_pfit; /* FDI configuration, only valid if has_pch_encoder is set. */ diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index 42114ecbae0e..293564a2896a 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -112,6 +112,7 @@ intel_pch_panel_fitting(struct intel_crtc *intel_crtc, done: pipe_config->pch_pfit.pos = (x << 16) | y; pipe_config->pch_pfit.size = (width << 16) | height; + pipe_config->pch_pfit.enabled = pipe_config->pch_pfit.size != 0; } static void diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 0c115cc4899f..dd176b7296c1 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -2096,16 +2096,16 @@ static uint32_t ilk_pipe_pixel_rate(struct drm_device *dev, struct drm_crtc *crtc) { struct intel_crtc *intel_crtc = to_intel_crtc(crtc); - uint32_t pixel_rate, pfit_size; + uint32_t pixel_rate; pixel_rate = intel_crtc->config.adjusted_mode.clock; /* We only use IF-ID interlacing. If we ever use PF-ID we'll need to * adjust the pixel_rate here. */ - pfit_size = intel_crtc->config.pch_pfit.size; - if (pfit_size) { + if (intel_crtc->config.pch_pfit.enabled) { uint64_t pipe_w, pipe_h, pfit_w, pfit_h; + uint32_t pfit_size = intel_crtc->config.pch_pfit.size; pipe_w = intel_crtc->config.requested_mode.hdisplay; pipe_h = intel_crtc->config.requested_mode.vdisplay; From 17e1df07df0fbc77696a1e1b6ccf9f2e5af70e40 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Sun, 8 Sep 2013 21:57:13 +0200 Subject: [PATCH 004/350] drm/i915: fix wait_for_pending_flips vs gpu hang deadlock MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit My g33 here seems to be shockingly good at hitting them all. This time around kms_flip/flip-vs-panning-vs-hang blows up: intel_crtc_wait_for_pending_flips correctly checks for gpu hangs and if a gpu hang is pending aborts the wait for outstanding flips so that the setcrtc call will succeed and release the crtc mutex. And the gpu hang handler needs that lock in intel_display_handle_reset to be able to complete outstanding flips. The problem is that we can race in two ways: - Waiters on the dev_priv->pending_flip_queue aren't woken up after we've the reset as pending, but before we actually start the reset work. This means that the waiter doesn't notice the pending reset and hence will keep on hogging the locks. Like with dev->struct_mutex and the ring->irq_queue wait queues we there need to wake up everyone that potentially holds a lock which the reset handler needs. - intel_display_handle_reset was called _after_ we've already signalled the completion of the reset work. Which means a waiter could sneak in, grab the lock and never release it (since the pageflips won't ever get released). Similar to resetting the gem state all the reset work must complete before we update the reset counter. Contrary to the gem reset we don't need to have a second explicit wake up call since that will have happened already when completing the pageflips. We also don't have any issues that the completion happens while the reset state is still pending - wait_for_pending_flips is only there to ensure we display the right frame. After a gpu hang&reset events such guarantees are out the window anyway. This is in contrast to the gem code where too-early wake-up would result in unnecessary restarting of ioctls. Also, since we've gotten these various deadlocks and ordering constraints wrong so often throw copious amounts of comments at the code. This deadlock regression has been introduced in the commit which added the pageflip reset logic to the gpu hang work: commit 96a02917a0131e52efefde49c2784c0421d6c439 Author: Ville Syrjälä Date: Mon Feb 18 19:08:49 2013 +0200 drm/i915: Finish page flips and update primary planes after a GPU reset v2: - Add comments to explain how the wake_up serves as memory barriers for the atomic_t reset counter. - Improve the comments a bit as suggested by Chris Wilson. - Extract the wake_up calls before/after the reset into a little i915_error_wake_up and unconditionally wake up the pending_flip_queue waiters, again as suggested by Chris Wilson. v3: Throw copious amounts of comments at i915_error_wake_up as suggested by Chris Wilson. Cc: stable@vger.kernel.org Cc: Ville Syrjälä Cc: Chris Wilson Reviewed-by: Chris Wilson Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_irq.c | 68 ++++++++++++++++++++++++++------- 1 file changed, 54 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 83cce0cdb769..4b91228fd9bd 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1469,6 +1469,34 @@ static irqreturn_t ironlake_irq_handler(int irq, void *arg) return ret; } +static void i915_error_wake_up(struct drm_i915_private *dev_priv, + bool reset_completed) +{ + struct intel_ring_buffer *ring; + int i; + + /* + * Notify all waiters for GPU completion events that reset state has + * been changed, and that they need to restart their wait after + * checking for potential errors (and bail out to drop locks if there is + * a gpu reset pending so that i915_error_work_func can acquire them). + */ + + /* Wake up __wait_seqno, potentially holding dev->struct_mutex. */ + for_each_ring(ring, dev_priv, i) + wake_up_all(&ring->irq_queue); + + /* Wake up intel_crtc_wait_for_pending_flips, holding crtc->mutex. */ + wake_up_all(&dev_priv->pending_flip_queue); + + /* + * Signal tasks blocked in i915_gem_wait_for_error that the pending + * reset state is cleared. + */ + if (reset_completed) + wake_up_all(&dev_priv->gpu_error.reset_queue); +} + /** * i915_error_work_func - do process context error handling work * @work: work struct @@ -1483,11 +1511,10 @@ static void i915_error_work_func(struct work_struct *work) drm_i915_private_t *dev_priv = container_of(error, drm_i915_private_t, gpu_error); struct drm_device *dev = dev_priv->dev; - struct intel_ring_buffer *ring; char *error_event[] = { I915_ERROR_UEVENT "=1", NULL }; char *reset_event[] = { I915_RESET_UEVENT "=1", NULL }; char *reset_done_event[] = { I915_ERROR_UEVENT "=0", NULL }; - int i, ret; + int ret; kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE, error_event); @@ -1506,8 +1533,16 @@ static void i915_error_work_func(struct work_struct *work) kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE, reset_event); + /* + * All state reset _must_ be completed before we update the + * reset counter, for otherwise waiters might miss the reset + * pending state and not properly drop locks, resulting in + * deadlocks with the reset work. + */ ret = i915_reset(dev); + intel_display_handle_reset(dev); + if (ret == 0) { /* * After all the gem state is reset, increment the reset @@ -1528,12 +1563,11 @@ static void i915_error_work_func(struct work_struct *work) atomic_set(&error->reset_counter, I915_WEDGED); } - for_each_ring(ring, dev_priv, i) - wake_up_all(&ring->irq_queue); - - intel_display_handle_reset(dev); - - wake_up_all(&dev_priv->gpu_error.reset_queue); + /* + * Note: The wake_up also serves as a memory barrier so that + * waiters see the update value of the reset counter atomic_t. + */ + i915_error_wake_up(dev_priv, true); } } @@ -1642,8 +1676,6 @@ static void i915_report_and_clear_eir(struct drm_device *dev) void i915_handle_error(struct drm_device *dev, bool wedged) { struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_ring_buffer *ring; - int i; i915_capture_error_state(dev); i915_report_and_clear_eir(dev); @@ -1653,11 +1685,19 @@ void i915_handle_error(struct drm_device *dev, bool wedged) &dev_priv->gpu_error.reset_counter); /* - * Wakeup waiting processes so that the reset work item - * doesn't deadlock trying to grab various locks. + * Wakeup waiting processes so that the reset work function + * i915_error_work_func doesn't deadlock trying to grab various + * locks. By bumping the reset counter first, the woken + * processes will see a reset in progress and back off, + * releasing their locks and then wait for the reset completion. + * We must do this for _all_ gpu waiters that might hold locks + * that the reset work needs to acquire. + * + * Note: The wake_up serves as the required memory barrier to + * ensure that the waiters see the updated value of the reset + * counter atomic_t. */ - for_each_ring(ring, dev_priv, i) - wake_up_all(&ring->irq_queue); + i915_error_wake_up(dev_priv, false); } /* From dd935f44a40f8fb02aff2cc0df2269c92422df1c Mon Sep 17 00:00:00 2001 From: Josh Durgin Date: Wed, 28 Aug 2013 21:43:09 -0700 Subject: [PATCH 005/350] libceph: add function to ensure notifies are complete Without a way to flush the osd client's notify workqueue, a watch event that is unregistered could continue receiving callbacks indefinitely. Unregistering the event simply means no new notifies are added to the queue, but there may still be events in the queue that will call the watch callback for the event. If the queue is flushed after the event is unregistered, the caller can be sure no more watch callbacks will occur for the canceled watch. Signed-off-by: Josh Durgin Reviewed-by: Sage Weil Reviewed-by: Alex Elder --- include/linux/ceph/osd_client.h | 2 ++ net/ceph/osd_client.c | 11 +++++++++++ 2 files changed, 13 insertions(+) diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h index ce6df39f60ff..8f47625a0661 100644 --- a/include/linux/ceph/osd_client.h +++ b/include/linux/ceph/osd_client.h @@ -335,6 +335,8 @@ extern int ceph_osdc_wait_request(struct ceph_osd_client *osdc, struct ceph_osd_request *req); extern void ceph_osdc_sync(struct ceph_osd_client *osdc); +extern void ceph_osdc_flush_notifies(struct ceph_osd_client *osdc); + extern int ceph_osdc_readpages(struct ceph_osd_client *osdc, struct ceph_vino vino, struct ceph_file_layout *layout, diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c index 1606f740d6ae..2b4b32aaa893 100644 --- a/net/ceph/osd_client.c +++ b/net/ceph/osd_client.c @@ -2215,6 +2215,17 @@ void ceph_osdc_sync(struct ceph_osd_client *osdc) } EXPORT_SYMBOL(ceph_osdc_sync); +/* + * Call all pending notify callbacks - for use after a watch is + * unregistered, to make sure no more callbacks for it will be invoked + */ +extern void ceph_osdc_flush_notifies(struct ceph_osd_client *osdc) +{ + flush_workqueue(osdc->notify_wq); +} +EXPORT_SYMBOL(ceph_osdc_flush_notifies); + + /* * init, shutdown */ From 9abc59908e0c5f983aaa91150da32d5b62cf60b7 Mon Sep 17 00:00:00 2001 From: Josh Durgin Date: Thu, 29 Aug 2013 17:31:03 -0700 Subject: [PATCH 006/350] rbd: complete notifies before cleaning up osd_client and rbd_dev To ensure rbd_dev is not used after it's released, flush all pending notify callbacks before calling rbd_dev_image_release(). No new notifies can be added to the queue at this point because the watch has already be unregistered with the osd_client. Signed-off-by: Josh Durgin Reviewed-by: Alex Elder --- drivers/block/rbd.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index fef3687c1527..bf89e348d11b 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -5163,6 +5163,13 @@ static ssize_t rbd_remove(struct bus_type *bus, ret = rbd_dev_header_watch_sync(rbd_dev, false); if (ret) rbd_warn(rbd_dev, "failed to cancel watch event (%d)\n", ret); + + /* + * flush remaining watch callbacks - these must be complete + * before the osd_client is shutdown + */ + dout("%s: flushing notifies", __func__); + ceph_osdc_flush_notifies(&rbd_dev->rbd_client->client->osdc); rbd_dev_image_release(rbd_dev); module_put(THIS_MODULE); From 20e0af67ce88c657d0601977b9941a2256afbdaa Mon Sep 17 00:00:00 2001 From: Josh Durgin Date: Thu, 29 Aug 2013 17:36:03 -0700 Subject: [PATCH 007/350] rbd: make rbd_obj_notify_ack() synchronous The only user of rbd_obj_notify_ack() is rbd_watch_cb(). It used asynchronously with no tracking of when the notify ack completes, so it may still be in progress when the osd_client is shut down. This results in a BUG() since the osd client assumes no requests are in flight when it stops. Since all notifies are flushed before the osd_client is stopped, waiting for the notify ack to complete before returning from the watch callback ensures there are no notify acks in flight during shutdown. Rename rbd_obj_notify_ack() to rbd_obj_notify_ack_sync() to reflect its new synchronous nature. Signed-off-by: Josh Durgin Reviewed-by: Alex Elder --- drivers/block/rbd.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index bf89e348d11b..9e5f07f936dd 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -2808,7 +2808,7 @@ out_err: obj_request_done_set(obj_request); } -static int rbd_obj_notify_ack(struct rbd_device *rbd_dev, u64 notify_id) +static int rbd_obj_notify_ack_sync(struct rbd_device *rbd_dev, u64 notify_id) { struct rbd_obj_request *obj_request; struct ceph_osd_client *osdc = &rbd_dev->rbd_client->client->osdc; @@ -2823,16 +2823,17 @@ static int rbd_obj_notify_ack(struct rbd_device *rbd_dev, u64 notify_id) obj_request->osd_req = rbd_osd_req_create(rbd_dev, false, obj_request); if (!obj_request->osd_req) goto out; - obj_request->callback = rbd_obj_request_put; osd_req_op_watch_init(obj_request->osd_req, 0, CEPH_OSD_OP_NOTIFY_ACK, notify_id, 0, 0); rbd_osd_req_format_read(obj_request); ret = rbd_obj_request_submit(osdc, obj_request); -out: if (ret) - rbd_obj_request_put(obj_request); + goto out; + ret = rbd_obj_request_wait(obj_request); +out: + rbd_obj_request_put(obj_request); return ret; } @@ -2852,7 +2853,7 @@ static void rbd_watch_cb(u64 ver, u64 notify_id, u8 opcode, void *data) if (ret) rbd_warn(rbd_dev, "header refresh error (%d)\n", ret); - rbd_obj_notify_ack(rbd_dev, notify_id); + rbd_obj_notify_ack_sync(rbd_dev, notify_id); } /* From 9875201e10496612080e7d164acc8f625c18725c Mon Sep 17 00:00:00 2001 From: Josh Durgin Date: Thu, 29 Aug 2013 17:26:31 -0700 Subject: [PATCH 008/350] rbd: fix use-after free of rbd_dev->disk Removing a device deallocates the disk, unschedules the watch, and finally cleans up the rbd_dev structure. rbd_dev_refresh(), called from the watch callback, updates the disk size and rbd_dev structure. With no locking between them, rbd_dev_refresh() may use the device or rbd_dev after they've been freed. To fix this, check whether RBD_DEV_FLAG_REMOVING is set before updating the disk size in rbd_dev_refresh(). In order to prevent a race where rbd_dev_refresh() is already revalidating the disk when rbd_remove() is called, move the call to rbd_bus_del_dev() after the watch is unregistered and all notifies are complete. It's safe to defer deleting this structure because no new requests can be submitted once the RBD_DEV_FLAG_REMOVING is set, since the device cannot be opened. Fixes: http://tracker.ceph.com/issues/5636 Signed-off-by: Josh Durgin Reviewed-by: Alex Elder --- drivers/block/rbd.c | 40 +++++++++++++++++++++++++++++++++------- 1 file changed, 33 insertions(+), 7 deletions(-) diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 9e5f07f936dd..47c6f9cf9dba 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -3325,6 +3325,31 @@ static void rbd_exists_validate(struct rbd_device *rbd_dev) clear_bit(RBD_DEV_FLAG_EXISTS, &rbd_dev->flags); } +static void rbd_dev_update_size(struct rbd_device *rbd_dev) +{ + sector_t size; + bool removing; + + /* + * Don't hold the lock while doing disk operations, + * or lock ordering will conflict with the bdev mutex via: + * rbd_add() -> blkdev_get() -> rbd_open() + */ + spin_lock_irq(&rbd_dev->lock); + removing = test_bit(RBD_DEV_FLAG_REMOVING, &rbd_dev->flags); + spin_unlock_irq(&rbd_dev->lock); + /* + * If the device is being removed, rbd_dev->disk has + * been destroyed, so don't try to update its size + */ + if (!removing) { + size = (sector_t)rbd_dev->mapping.size / SECTOR_SIZE; + dout("setting size to %llu sectors", (unsigned long long)size); + set_capacity(rbd_dev->disk, size); + revalidate_disk(rbd_dev->disk); + } +} + static int rbd_dev_refresh(struct rbd_device *rbd_dev) { u64 mapping_size; @@ -3344,12 +3369,7 @@ static int rbd_dev_refresh(struct rbd_device *rbd_dev) up_write(&rbd_dev->header_rwsem); if (mapping_size != rbd_dev->mapping.size) { - sector_t size; - - size = (sector_t)rbd_dev->mapping.size / SECTOR_SIZE; - dout("setting size to %llu sectors", (unsigned long long)size); - set_capacity(rbd_dev->disk, size); - revalidate_disk(rbd_dev->disk); + rbd_dev_update_size(rbd_dev); } return ret; @@ -5160,7 +5180,6 @@ static ssize_t rbd_remove(struct bus_type *bus, if (ret < 0 || already) return ret; - rbd_bus_del_dev(rbd_dev); ret = rbd_dev_header_watch_sync(rbd_dev, false); if (ret) rbd_warn(rbd_dev, "failed to cancel watch event (%d)\n", ret); @@ -5171,6 +5190,13 @@ static ssize_t rbd_remove(struct bus_type *bus, */ dout("%s: flushing notifies", __func__); ceph_osdc_flush_notifies(&rbd_dev->rbd_client->client->osdc); + /* + * Don't free anything from rbd_dev->disk until after all + * notifies are completely processed. Otherwise + * rbd_bus_del_dev() will race with rbd_watch_cb(), resulting + * in a potential use after free of rbd_dev->disk or rbd_dev. + */ + rbd_bus_del_dev(rbd_dev); rbd_dev_image_release(rbd_dev); module_put(THIS_MODULE); From efadc98aab674153709cc357ba565f04e3164fcd Mon Sep 17 00:00:00 2001 From: Josh Durgin Date: Thu, 29 Aug 2013 19:16:42 -0700 Subject: [PATCH 009/350] rbd: ignore unmapped snapshots that no longer exist This prevents erroring out while adding a device when a snapshot unrelated to the current mapping is deleted between reading the snapshot context and reading the snapshot names. If the mapped snapshot name is not found an error still occurs as usual. Signed-off-by: Josh Durgin Reviewed-by: Alex Elder --- drivers/block/rbd.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 47c6f9cf9dba..626a7136fb2f 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -4078,8 +4078,13 @@ static u64 rbd_v2_snap_id_by_name(struct rbd_device *rbd_dev, const char *name) snap_id = snapc->snaps[which]; snap_name = rbd_dev_v2_snap_name(rbd_dev, snap_id); - if (IS_ERR(snap_name)) - break; + if (IS_ERR(snap_name)) { + /* ignore no-longer existing snapshots */ + if (PTR_ERR(snap_name) == -ENOENT) + continue; + else + break; + } found = !strcmp(name, snap_name); kfree(snap_name); } From da6a6b63978d45f9ae582d1f362f182012da3a22 Mon Sep 17 00:00:00 2001 From: Josh Durgin Date: Wed, 4 Sep 2013 17:57:31 -0700 Subject: [PATCH 010/350] rbd: fix error handling from rbd_snap_name() rbd_snap_name() calls rbd_dev_v{1,2}_snap_name() depending on the format of the image. The format 1 version returns NULL on error, which is handled by the caller. The format 2 version returns an ERR_PTR, which the caller of rbd_snap_name() does not expect. Fortunately this is unlikely to occur in practice because rbd_snap_id_by_name() is called before rbd_snap_name(). This would hit similar errors to rbd_snap_name() (like the snapshot not existing) and return early, so rbd_snap_name() would not hit an error unless the snapshot was removed between the two calls or memory was exhausted. Use an ERR_PTR in rbd_dev_v1_snap_name() so that the specific error can be propagated, and it is consistent with rbd_dev_v2_snap_name(). Handle the ERR_PTR in the only rbd_snap_name() caller. Suggested-by: Alex Elder Signed-off-by: Josh Durgin Reviewed-by: Alex Elder --- drivers/block/rbd.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 626a7136fb2f..2f00778e1024 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -927,12 +927,14 @@ static const char *rbd_dev_v1_snap_name(struct rbd_device *rbd_dev, u64 snap_id) { u32 which; + const char *snap_name; which = rbd_dev_snap_index(rbd_dev, snap_id); if (which == BAD_SNAP_INDEX) - return NULL; + return ERR_PTR(-ENOENT); - return _rbd_dev_v1_snap_name(rbd_dev, which); + snap_name = _rbd_dev_v1_snap_name(rbd_dev, which); + return snap_name ? snap_name : ERR_PTR(-ENOMEM); } static const char *rbd_snap_name(struct rbd_device *rbd_dev, u64 snap_id) @@ -4163,8 +4165,8 @@ static int rbd_dev_spec_update(struct rbd_device *rbd_dev) /* Look up the snapshot name, and make a copy */ snap_name = rbd_snap_name(rbd_dev, spec->snap_id); - if (!snap_name) { - ret = -ENOMEM; + if (IS_ERR(snap_name)) { + ret = PTR_ERR(snap_name); goto out_err; } From aec8e88c947b7017e2b4bbcb68a4bfc4a1f8ad35 Mon Sep 17 00:00:00 2001 From: Solomon Peachy Date: Tue, 27 Aug 2013 20:29:46 -0400 Subject: [PATCH 011/350] cw1200: Don't perform SPI transfers in interrupt context When we get an interrupt from the hardware, the first thing the driver does is tell the device to mask off the interrupt line. Unfortunately this involves a SPI transaction in interrupt context. Some (most?) SPI controllers perform the transfer asynchronously and try to sleep. This is bad, and triggers a BUG(). So, work around this by using adding a hwbus hook for the cw1200 driver core to call. The cw1200_spi driver translates this into irq_disable()/irq_enable() calls instead, which can safely be called in interrupt context. Apparently the platforms I used to develop the cw1200_spi driver used synchronous spi_sync() implementations, which is why this didn't surface until now. Many thanks to Dave Sizeburns for the inital bug report and his services as a tester. Signed-off-by: Solomon Peachy Signed-off-by: John W. Linville --- drivers/net/wireless/cw1200/cw1200_spi.c | 19 ++++++++++++++++--- drivers/net/wireless/cw1200/fwio.c | 2 +- drivers/net/wireless/cw1200/hwbus.h | 1 + drivers/net/wireless/cw1200/hwio.c | 15 +++++++++++++++ 4 files changed, 33 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/cw1200/cw1200_spi.c b/drivers/net/wireless/cw1200/cw1200_spi.c index d06376014bcd..c31580ba883b 100644 --- a/drivers/net/wireless/cw1200/cw1200_spi.c +++ b/drivers/net/wireless/cw1200/cw1200_spi.c @@ -41,6 +41,7 @@ struct hwbus_priv { const struct cw1200_platform_data_spi *pdata; spinlock_t lock; /* Serialize all bus operations */ int claimed; + int irq_disabled; }; #define SDIO_TO_SPI_ADDR(addr) ((addr & 0x1f)>>2) @@ -230,6 +231,8 @@ static irqreturn_t cw1200_spi_irq_handler(int irq, void *dev_id) struct hwbus_priv *self = dev_id; if (self->core) { + disable_irq_nosync(self->func->irq); + self->irq_disabled = 1; cw1200_irq_handler(self->core); return IRQ_HANDLED; } else { @@ -263,13 +266,22 @@ exit: static int cw1200_spi_irq_unsubscribe(struct hwbus_priv *self) { - int ret = 0; - pr_debug("SW IRQ unsubscribe\n"); disable_irq_wake(self->func->irq); free_irq(self->func->irq, self); - return ret; + return 0; +} + +static int cw1200_spi_irq_enable(struct hwbus_priv *self, int enable) +{ + /* Disables are handled by the interrupt handler */ + if (enable && self->irq_disabled) { + enable_irq(self->func->irq); + self->irq_disabled = 0; + } + + return 0; } static int cw1200_spi_off(const struct cw1200_platform_data_spi *pdata) @@ -349,6 +361,7 @@ static struct hwbus_ops cw1200_spi_hwbus_ops = { .unlock = cw1200_spi_unlock, .align_size = cw1200_spi_align_size, .power_mgmt = cw1200_spi_pm, + .irq_enable = cw1200_spi_irq_enable, }; /* Probe Function to be called by SPI stack when device is discovered */ diff --git a/drivers/net/wireless/cw1200/fwio.c b/drivers/net/wireless/cw1200/fwio.c index acdff0f7f952..0b2061bbc68b 100644 --- a/drivers/net/wireless/cw1200/fwio.c +++ b/drivers/net/wireless/cw1200/fwio.c @@ -485,7 +485,7 @@ int cw1200_load_firmware(struct cw1200_common *priv) /* Enable interrupt signalling */ priv->hwbus_ops->lock(priv->hwbus_priv); - ret = __cw1200_irq_enable(priv, 1); + ret = __cw1200_irq_enable(priv, 2); priv->hwbus_ops->unlock(priv->hwbus_priv); if (ret < 0) goto unsubscribe; diff --git a/drivers/net/wireless/cw1200/hwbus.h b/drivers/net/wireless/cw1200/hwbus.h index 8b2fc831c3de..51dfb3a90735 100644 --- a/drivers/net/wireless/cw1200/hwbus.h +++ b/drivers/net/wireless/cw1200/hwbus.h @@ -28,6 +28,7 @@ struct hwbus_ops { void (*unlock)(struct hwbus_priv *self); size_t (*align_size)(struct hwbus_priv *self, size_t size); int (*power_mgmt)(struct hwbus_priv *self, bool suspend); + int (*irq_enable)(struct hwbus_priv *self, int enable); }; #endif /* CW1200_HWBUS_H */ diff --git a/drivers/net/wireless/cw1200/hwio.c b/drivers/net/wireless/cw1200/hwio.c index ff230b7aeedd..41bd7615ccaa 100644 --- a/drivers/net/wireless/cw1200/hwio.c +++ b/drivers/net/wireless/cw1200/hwio.c @@ -273,6 +273,21 @@ int __cw1200_irq_enable(struct cw1200_common *priv, int enable) u16 val16; int ret; + /* We need to do this hack because the SPI layer can sleep on I/O + and the general path involves I/O to the device in interrupt + context. + + However, the initial enable call needs to go to the hardware. + + We don't worry about shutdown because we do a full reset which + clears the interrupt enabled bits. + */ + if (priv->hwbus_ops->irq_enable) { + ret = priv->hwbus_ops->irq_enable(priv->hwbus_priv, enable); + if (ret || enable < 2) + return ret; + } + if (HIF_8601_SILICON == priv->hw_type) { ret = __cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, &val32); if (ret < 0) { From 85ba8f529c57ac6e2fca9be0d9e17920a1afb2e8 Mon Sep 17 00:00:00 2001 From: Solomon Peachy Date: Tue, 27 Aug 2013 20:29:47 -0400 Subject: [PATCH 012/350] cw1200: Prevent a lock-related hang in the cw1200_spi driver The cw1200_spi driver tries to mirror the cw1200_sdio driver's lock API, which relies on sdio_claim_host/sdio_release_host to serialize hardware operations across multiple threads. Unfortunately the implementation was flawed, as it lacked a way to wake up the lock requestor when there was contention, often resulting in a hang. This problem was uncovered while trying to fix the spi-transfers-in-interrupt-context BUG() corrected in the previous patch. Many thanks to Dave Sizeburns for his assistance in fixing this. Signed-off-by: Solomon Peachy Signed-off-by: John W. Linville --- drivers/net/wireless/cw1200/cw1200_spi.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/net/wireless/cw1200/cw1200_spi.c b/drivers/net/wireless/cw1200/cw1200_spi.c index c31580ba883b..f5e6b489ed32 100644 --- a/drivers/net/wireless/cw1200/cw1200_spi.c +++ b/drivers/net/wireless/cw1200/cw1200_spi.c @@ -40,6 +40,7 @@ struct hwbus_priv { struct cw1200_common *core; const struct cw1200_platform_data_spi *pdata; spinlock_t lock; /* Serialize all bus operations */ + wait_queue_head_t wq; int claimed; int irq_disabled; }; @@ -198,8 +199,11 @@ static void cw1200_spi_lock(struct hwbus_priv *self) { unsigned long flags; + DECLARE_WAITQUEUE(wait, current); + might_sleep(); + add_wait_queue(&self->wq, &wait); spin_lock_irqsave(&self->lock, flags); while (1) { set_current_state(TASK_UNINTERRUPTIBLE); @@ -212,6 +216,7 @@ static void cw1200_spi_lock(struct hwbus_priv *self) set_current_state(TASK_RUNNING); self->claimed = 1; spin_unlock_irqrestore(&self->lock, flags); + remove_wait_queue(&self->wq, &wait); return; } @@ -223,6 +228,8 @@ static void cw1200_spi_unlock(struct hwbus_priv *self) spin_lock_irqsave(&self->lock, flags); self->claimed = 0; spin_unlock_irqrestore(&self->lock, flags); + wake_up(&self->wq); + return; } @@ -413,6 +420,8 @@ static int cw1200_spi_probe(struct spi_device *func) spi_set_drvdata(func, self); + init_waitqueue_head(&self->wq); + status = cw1200_spi_irq_subscribe(self); status = cw1200_core_probe(&cw1200_spi_hwbus_ops, From c4bff5d99da44b8aa2181cda6adf45479388d616 Mon Sep 17 00:00:00 2001 From: Arend van Spriel Date: Tue, 3 Sep 2013 14:46:09 +0200 Subject: [PATCH 013/350] brcmfmac: fix bus interface selection in Kconfig The kernel configuration for the driver could result in compilation issues as reported by Randy Dunlap. His results are show below: "on x86_64: when CONFIG_MMC=m CONFIG_BRCMUTIL=y CONFIG_BRCMFMAC=y CONFIG_BRCMFMAC_SDIO=y This bool kconfig symbol: config BRCMFMAC_SDIO bool "SDIO bus interface support for FullMAC driver" depends on MMC allows BRCMFMAC_SDIO to be y even when MMC=m. Is there a reasonable solution to this? This causes many build errors: drivers/built-in.o: In function `brcmf_sdio_assert_info': dhd_sdio.c:(.text+0x39609b): undefined reference to `sdio_claim_host' dhd_sdio.c:(.text+0x3960d9): undefined reference to `sdio_release_host' drivers/built-in.o: In function `brcmf_sdio_readframes': dhd_sdio.c:(.text+0x396a62): undefined reference to `sdio_claim_host' dhd_sdio.c:(.text+0x396a9b): undefined reference to `sdio_release_host' ..." This patch adds the appropriate logic in Kconfig to resolve these issues. The solution was provided by Hauke Mehrtens. Reported-by: Randy Dunlap Cc: Hauke Mehrtens Reviewed-by: Hante Meuleman Reviewed-by: Pieter-Paul Giesberts Signed-off-by: Arend van Spriel Acked-by: Randy Dunlap Signed-off-by: John W. Linville --- drivers/net/wireless/brcm80211/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/brcm80211/Kconfig b/drivers/net/wireless/brcm80211/Kconfig index fc8a0fa6d3b2..b00a7e92225f 100644 --- a/drivers/net/wireless/brcm80211/Kconfig +++ b/drivers/net/wireless/brcm80211/Kconfig @@ -28,7 +28,7 @@ config BRCMFMAC config BRCMFMAC_SDIO bool "SDIO bus interface support for FullMAC driver" - depends on MMC + depends on (MMC = y || MMC = BRCMFMAC) depends on BRCMFMAC select FW_LOADER default y @@ -39,7 +39,7 @@ config BRCMFMAC_SDIO config BRCMFMAC_USB bool "USB bus interface support for FullMAC driver" - depends on USB + depends on (USB = y || USB = BRCMFMAC) depends on BRCMFMAC select FW_LOADER ---help--- From 8a10da264663f97ad8b5c85343274ad903b32196 Mon Sep 17 00:00:00 2001 From: Alexey Khoroshilov Date: Wed, 4 Sep 2013 00:37:17 +0400 Subject: [PATCH 014/350] rtl8187: fix use after free on failure path in rtl8187_init_urbs() In case of __dev_alloc_skb() failure rtl8187_init_urbs() calls usb_free_urb(entry) where 'entry' can points to urb allocated at the previous iteration. That means refcnt will be decremented incorrectly and the urb can be used after memory deallocation. The patch fixes the issue and implements error handling of init_urbs in rtl8187_start(). Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov Signed-off-by: John W. Linville --- drivers/net/wireless/rtl818x/rtl8187/dev.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/rtl818x/rtl8187/dev.c b/drivers/net/wireless/rtl818x/rtl8187/dev.c index 841fb9dfc9da..9a6edb0c014e 100644 --- a/drivers/net/wireless/rtl818x/rtl8187/dev.c +++ b/drivers/net/wireless/rtl818x/rtl8187/dev.c @@ -438,17 +438,16 @@ static int rtl8187_init_urbs(struct ieee80211_hw *dev) skb_queue_tail(&priv->rx_queue, skb); usb_anchor_urb(entry, &priv->anchored); ret = usb_submit_urb(entry, GFP_KERNEL); + usb_put_urb(entry); if (ret) { skb_unlink(skb, &priv->rx_queue); usb_unanchor_urb(entry); goto err; } - usb_free_urb(entry); } return ret; err: - usb_free_urb(entry); kfree_skb(skb); usb_kill_anchored_urbs(&priv->anchored); return ret; @@ -956,8 +955,12 @@ static int rtl8187_start(struct ieee80211_hw *dev) (RETRY_COUNT << 8 /* short retry limit */) | (RETRY_COUNT << 0 /* long retry limit */) | (7 << 21 /* MAX TX DMA */)); - rtl8187_init_urbs(dev); - rtl8187b_init_status_urb(dev); + ret = rtl8187_init_urbs(dev); + if (ret) + goto rtl8187_start_exit; + ret = rtl8187b_init_status_urb(dev); + if (ret) + usb_kill_anchored_urbs(&priv->anchored); goto rtl8187_start_exit; } @@ -966,7 +969,9 @@ static int rtl8187_start(struct ieee80211_hw *dev) rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0); rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0); - rtl8187_init_urbs(dev); + ret = rtl8187_init_urbs(dev); + if (ret) + goto rtl8187_start_exit; reg = RTL818X_RX_CONF_ONLYERLPKT | RTL818X_RX_CONF_RX_AUTORESETPHY | From aaa2ced15ad8dca8048666c9f70736424d696a6b Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Sat, 7 Sep 2013 17:02:49 +0200 Subject: [PATCH 015/350] bcma: fix error code handling on 64 Bit systems On most 64 Bit systems unsigned long is 64 bit long and then -MAX_ERRNO is out of the range of a u32 used to store the error code in. This patch casts the -MAX_ERRNO to a u32 instead. This fixes a regression introduced in: commit fd4edf197544bae1c77d84bad354aa7ce1d08ce1 Author: Hauke Mehrtens Date: Mon Jul 15 13:15:08 2013 +0200 bcma: fix handling of big addrl Reported-by: Arend van Spriel Signed-off-by: Hauke Mehrtens Tested-by: Arend van Spriel Signed-off-by: John W. Linville --- drivers/bcma/scan.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/bcma/scan.c b/drivers/bcma/scan.c index cd6b20fce680..37768401d113 100644 --- a/drivers/bcma/scan.c +++ b/drivers/bcma/scan.c @@ -269,6 +269,8 @@ static struct bcma_device *bcma_find_core_reverse(struct bcma_bus *bus, u16 core return NULL; } +#define IS_ERR_VALUE_U32(x) ((x) >= (u32)-MAX_ERRNO) + static int bcma_get_next_core(struct bcma_bus *bus, u32 __iomem **eromptr, struct bcma_device_id *match, int core_num, struct bcma_device *core) @@ -351,11 +353,11 @@ static int bcma_get_next_core(struct bcma_bus *bus, u32 __iomem **eromptr, * the main register space for the core */ tmp = bcma_erom_get_addr_desc(bus, eromptr, SCAN_ADDR_TYPE_SLAVE, 0); - if (tmp == 0 || IS_ERR_VALUE(tmp)) { + if (tmp == 0 || IS_ERR_VALUE_U32(tmp)) { /* Try again to see if it is a bridge */ tmp = bcma_erom_get_addr_desc(bus, eromptr, SCAN_ADDR_TYPE_BRIDGE, 0); - if (tmp == 0 || IS_ERR_VALUE(tmp)) { + if (tmp == 0 || IS_ERR_VALUE_U32(tmp)) { return -EILSEQ; } else { bcma_info(bus, "Bridge found\n"); @@ -369,7 +371,7 @@ static int bcma_get_next_core(struct bcma_bus *bus, u32 __iomem **eromptr, for (j = 0; ; j++) { tmp = bcma_erom_get_addr_desc(bus, eromptr, SCAN_ADDR_TYPE_SLAVE, i); - if (IS_ERR_VALUE(tmp)) { + if (IS_ERR_VALUE_U32(tmp)) { /* no more entries for port _i_ */ /* pr_debug("erom: slave port %d " * "has %d descriptors\n", i, j); */ @@ -386,7 +388,7 @@ static int bcma_get_next_core(struct bcma_bus *bus, u32 __iomem **eromptr, for (j = 0; ; j++) { tmp = bcma_erom_get_addr_desc(bus, eromptr, SCAN_ADDR_TYPE_MWRAP, i); - if (IS_ERR_VALUE(tmp)) { + if (IS_ERR_VALUE_U32(tmp)) { /* no more entries for port _i_ */ /* pr_debug("erom: master wrapper %d " * "has %d descriptors\n", i, j); */ @@ -404,7 +406,7 @@ static int bcma_get_next_core(struct bcma_bus *bus, u32 __iomem **eromptr, for (j = 0; ; j++) { tmp = bcma_erom_get_addr_desc(bus, eromptr, SCAN_ADDR_TYPE_SWRAP, i + hack); - if (IS_ERR_VALUE(tmp)) { + if (IS_ERR_VALUE_U32(tmp)) { /* no more entries for port _i_ */ /* pr_debug("erom: master wrapper %d " * has %d descriptors\n", i, j); */ From f4e1a4d3ecbb9e42bdf8e7869ee8a4ebfa27fb20 Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Mon, 9 Sep 2013 12:37:37 +0200 Subject: [PATCH 016/350] rt2800: change initialization sequence to fix system freeze My commit commit c630ccf1a127578421a928489d51e99c05037054 Author: Stanislaw Gruszka Date: Sat Mar 16 19:19:46 2013 +0100 rt2800: rearrange bbp/rfcsr initialization make Maxim machine freeze when try to start wireless device. Initialization order and sending MCU_BOOT_SIGNAL request, changed in above commit, is important. Doing things incorrectly make PCIe bus problems, which can froze the machine. This patch change initialization sequence like vendor driver do: function NICInitializeAsic() from 2011_1007_RT5390_RT5392_Linux_STA_V2.5.0.3_DPO (PCI devices) and DPO_RT5572_LinuxSTA_2.6.1.3_20121022 (according Mediatek, latest driver for RT8070/RT3070/RT3370/RT3572/RT5370/RT5372/RT5572 USB devices). It fixes freezes on Maxim system. Resolve: https://bugzilla.redhat.com/show_bug.cgi?id=1000679 Reported-and-tested-by: Maxim Polyakov Bisected-by: Igor Gnatenko Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Stanislaw Gruszka Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2800lib.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index 95e6e61c3de0..88ce656f96cd 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -6659,19 +6659,20 @@ int rt2800_enable_radio(struct rt2x00_dev *rt2x00dev) rt2800_init_registers(rt2x00dev))) return -EIO; + if (unlikely(rt2800_wait_bbp_rf_ready(rt2x00dev))) + return -EIO; + /* * Send signal to firmware during boot time. */ rt2800_register_write(rt2x00dev, H2M_BBP_AGENT, 0); rt2800_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0); - if (rt2x00_is_usb(rt2x00dev)) { + if (rt2x00_is_usb(rt2x00dev)) rt2800_register_write(rt2x00dev, H2M_INT_SRC, 0); - rt2800_mcu_request(rt2x00dev, MCU_BOOT_SIGNAL, 0, 0, 0); - } + rt2800_mcu_request(rt2x00dev, MCU_BOOT_SIGNAL, 0, 0, 0); msleep(1); - if (unlikely(rt2800_wait_bbp_rf_ready(rt2x00dev) || - rt2800_wait_bbp_ready(rt2x00dev))) + if (unlikely(rt2800_wait_bbp_ready(rt2x00dev))) return -EIO; rt2800_init_bbp(rt2x00dev); From c0da0fa1d7ebe3c86747b10c92e0ac2be1524a8a Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Sat, 7 Sep 2013 11:39:10 +0200 Subject: [PATCH 017/350] x86: Remove now-unused save_rest() b3af11afe06a ("x86: get rid of pt_regs argument of iopl(2)") dropped PTREGSCALL which was also the last user of save_rest. Drop that now-unused function too. Signed-off-by: Borislav Petkov Cc: Al Viro Link: http://lkml.kernel.org/r/1378546750-19727-1-git-send-email-bp@suse.de Signed-off-by: Ingo Molnar --- arch/x86/kernel/entry_64.S | 15 --------------- 1 file changed, 15 deletions(-) diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S index 1b69951a81e2..b077f4cc225a 100644 --- a/arch/x86/kernel/entry_64.S +++ b/arch/x86/kernel/entry_64.S @@ -487,21 +487,6 @@ ENDPROC(native_usergs_sysret64) TRACE_IRQS_OFF .endm -ENTRY(save_rest) - PARTIAL_FRAME 1 (REST_SKIP+8) - movq 5*8+16(%rsp), %r11 /* save return address */ - movq_cfi rbx, RBX+16 - movq_cfi rbp, RBP+16 - movq_cfi r12, R12+16 - movq_cfi r13, R13+16 - movq_cfi r14, R14+16 - movq_cfi r15, R15+16 - movq %r11, 8(%rsp) /* return address */ - FIXUP_TOP_OF_STACK %r11, 16 - ret - CFI_ENDPROC -END(save_rest) - /* save complete stack frame */ .pushsection .kprobes.text, "ax" ENTRY(save_paranoid) From 7e7cb34f62dbb3471e4b1d3fae12a8b71e2224d9 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 10 Sep 2013 07:30:36 +0200 Subject: [PATCH 018/350] drm/i915: Use proper print format for debug prints Replace "%8x" with "%08x". The hex number should be shown with zero stuffed instead of spaces. Signed-off-by: Takashi Iwai Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_display.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 375e6a76a755..0d7c4f634bb9 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6495,15 +6495,15 @@ static void haswell_write_eld(struct drm_connector *connector, /* Set ELD valid state */ tmp = I915_READ(aud_cntrl_st2); - DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%8x\n", tmp); + DRM_DEBUG_DRIVER("HDMI audio: pin eld vld status=0x%08x\n", tmp); tmp |= (AUDIO_ELD_VALID_A << (pipe * 4)); I915_WRITE(aud_cntrl_st2, tmp); tmp = I915_READ(aud_cntrl_st2); - DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%8x\n", tmp); + DRM_DEBUG_DRIVER("HDMI audio: eld vld status=0x%08x\n", tmp); /* Enable HDMI mode */ tmp = I915_READ(aud_config); - DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%8x\n", tmp); + DRM_DEBUG_DRIVER("HDMI audio: audio conf: 0x%08x\n", tmp); /* clear N_programing_enable and N_value_index */ tmp &= ~(AUD_CONFIG_N_VALUE_INDEX | AUD_CONFIG_N_PROG_ENABLE); I915_WRITE(aud_config, tmp); From 3cea210f2c7c50e67287207a6548314491f49f31 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Tue, 10 Sep 2013 10:02:48 +0200 Subject: [PATCH 019/350] drm/i915/sdvo: Fully translate sync flags in the dtd->mode conversion MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Instead of just a flag bit for each of the positive/negative sync modes drm actually uses a separate flag for each ... This upsets the modeset checker since the adjusted mode filled out at modeset time doesn't match the one reconstructed at check time (since the ->get_config callback already gets this right). Reported-by: Knut Petersen Cc: Knut Petersen References: http://www.gossamer-threads.com/lists/linux/kernel/1778688?do=post_view_threaded Reviewed-by: Ville Syrjälä Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_sdvo.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index 85037b9d4934..5033c74966aa 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -866,8 +866,12 @@ static void intel_sdvo_get_mode_from_dtd(struct drm_display_mode * mode, mode->flags |= DRM_MODE_FLAG_INTERLACE; if (dtd->part2.dtd_flags & DTD_FLAG_HSYNC_POSITIVE) mode->flags |= DRM_MODE_FLAG_PHSYNC; + else + mode->flags |= DRM_MODE_FLAG_NHSYNC; if (dtd->part2.dtd_flags & DTD_FLAG_VSYNC_POSITIVE) mode->flags |= DRM_MODE_FLAG_PVSYNC; + else + mode->flags |= DRM_MODE_FLAG_NVSYNC; } static bool intel_sdvo_check_supp_encode(struct intel_sdvo *intel_sdvo) From 9c89d62948c4740e379a7e0085dd8d7c1561f53f Mon Sep 17 00:00:00 2001 From: Milosz Tanski Date: Mon, 9 Sep 2013 14:28:57 -0400 Subject: [PATCH 020/350] fscache: check consistency does not decrement refcount __fscache_check_consistency() does not decrement the count of operations active after it finishes in the success case. This leads to a hung tasks on cookie de-registration (commonly in inode eviction). INFO: task kworker/1:2:4214 blocked for more than 120 seconds. kworker/1:2 D ffff880443513fc0 0 4214 2 0x00000000 Workqueue: ceph-msgr con_work [libceph] ... Call Trace: [] ? _raw_spin_unlock_irqrestore+0x16/0x20 [] ? fscache_wait_bit_interruptible+0x30/0x30 [fscache] [] schedule+0x29/0x70 [] fscache_wait_atomic_t+0xe/0x20 [fscache] [] out_of_line_wait_on_atomic_t+0x9f/0xe0 [] ? autoremove_wake_function+0x40/0x40 [] __fscache_relinquish_cookie+0x15c/0x310 [fscache] [] ceph_fscache_unregister_inode_cookie+0x3e/0x50 [ceph] [] ceph_destroy_inode+0x33/0x200 [ceph] [] ? __fsnotify_inode_delete+0xe/0x10 [] destroy_inode+0x3c/0x70 [] evict+0x119/0x1b0 Signed-off-by: Milosz Tanski Acked-by: David Howells Signed-off-by: Sage Weil --- fs/fscache/cookie.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/fscache/cookie.c b/fs/fscache/cookie.c index 318e8433527c..b2a86e324aac 100644 --- a/fs/fscache/cookie.c +++ b/fs/fscache/cookie.c @@ -586,7 +586,8 @@ int __fscache_check_consistency(struct fscache_cookie *cookie) fscache_operation_init(op, NULL, NULL); op->flags = FSCACHE_OP_MYTHREAD | - (1 << FSCACHE_OP_WAITING); + (1 << FSCACHE_OP_WAITING) | + (1 << FSCACHE_OP_UNUSE_COOKIE); spin_lock(&cookie->lock); From bf6811f304795e7697985449ee870b29a8cbc6c7 Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Sun, 1 Sep 2013 13:25:09 -0400 Subject: [PATCH 021/350] drm/msm: handle read vs write fences The userspace API already had everything needed to handle read vs write synchronization. This patch actually bothers to hook it up properly, so that we don't need to (for example) stall on userspace read access to a buffer that gpu is also still reading. Signed-off-by: Rob Clark --- drivers/gpu/drm/msm/msm_drv.h | 2 +- drivers/gpu/drm/msm/msm_gem.c | 25 ++++++++++++++++++------- drivers/gpu/drm/msm/msm_gem.h | 2 +- drivers/gpu/drm/msm/msm_gpu.c | 9 +++++++-- 4 files changed, 27 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index 80d75094bf0a..1ea9d46e01bc 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -153,7 +153,7 @@ void *msm_gem_vaddr(struct drm_gem_object *obj); int msm_gem_queue_inactive_work(struct drm_gem_object *obj, struct work_struct *work); void msm_gem_move_to_active(struct drm_gem_object *obj, - struct msm_gpu *gpu, uint32_t fence); + struct msm_gpu *gpu, bool write, uint32_t fence); void msm_gem_move_to_inactive(struct drm_gem_object *obj); int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, struct timespec *timeout); diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index 6b5a6c8c7658..df0390f5ec58 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -393,11 +393,14 @@ int msm_gem_queue_inactive_work(struct drm_gem_object *obj, } void msm_gem_move_to_active(struct drm_gem_object *obj, - struct msm_gpu *gpu, uint32_t fence) + struct msm_gpu *gpu, bool write, uint32_t fence) { struct msm_gem_object *msm_obj = to_msm_bo(obj); msm_obj->gpu = gpu; - msm_obj->fence = fence; + if (write) + msm_obj->write_fence = fence; + else + msm_obj->read_fence = fence; list_del_init(&msm_obj->mm_list); list_add_tail(&msm_obj->mm_list, &gpu->active_list); } @@ -411,7 +414,8 @@ void msm_gem_move_to_inactive(struct drm_gem_object *obj) WARN_ON(!mutex_is_locked(&dev->struct_mutex)); msm_obj->gpu = NULL; - msm_obj->fence = 0; + msm_obj->read_fence = 0; + msm_obj->write_fence = 0; list_del_init(&msm_obj->mm_list); list_add_tail(&msm_obj->mm_list, &priv->inactive_list); @@ -433,8 +437,14 @@ int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, struct msm_gem_object *msm_obj = to_msm_bo(obj); int ret = 0; - if (is_active(msm_obj) && !(op & MSM_PREP_NOSYNC)) - ret = msm_wait_fence_interruptable(dev, msm_obj->fence, timeout); + if (is_active(msm_obj) && !(op & MSM_PREP_NOSYNC)) { + uint32_t fence = 0; + if (op & MSM_PREP_READ) + fence = msm_obj->write_fence; + if (op & MSM_PREP_WRITE) + fence = max(fence, msm_obj->read_fence); + ret = msm_wait_fence_interruptable(dev, fence, timeout); + } /* TODO cache maintenance */ @@ -455,9 +465,10 @@ void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m) uint64_t off = drm_vma_node_start(&obj->vma_node); WARN_ON(!mutex_is_locked(&dev->struct_mutex)); - seq_printf(m, "%08x: %c(%d) %2d (%2d) %08llx %p %d\n", + seq_printf(m, "%08x: %c(r=%u,w=%u) %2d (%2d) %08llx %p %d\n", msm_obj->flags, is_active(msm_obj) ? 'A' : 'I', - msm_obj->fence, obj->name, obj->refcount.refcount.counter, + msm_obj->read_fence, msm_obj->write_fence, + obj->name, obj->refcount.refcount.counter, off, msm_obj->vaddr, obj->size); } diff --git a/drivers/gpu/drm/msm/msm_gem.h b/drivers/gpu/drm/msm/msm_gem.h index d746f13d283c..0676f32e2c6a 100644 --- a/drivers/gpu/drm/msm/msm_gem.h +++ b/drivers/gpu/drm/msm/msm_gem.h @@ -36,7 +36,7 @@ struct msm_gem_object { */ struct list_head mm_list; struct msm_gpu *gpu; /* non-null if active */ - uint32_t fence; + uint32_t read_fence, write_fence; /* Transiently in the process of submit ioctl, objects associated * with the submit are on submit->bo_list.. this only lasts for diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c index e1e1ec9321ff..cb9cdffdc41f 100644 --- a/drivers/gpu/drm/msm/msm_gpu.c +++ b/drivers/gpu/drm/msm/msm_gpu.c @@ -265,7 +265,8 @@ static void retire_worker(struct work_struct *work) obj = list_first_entry(&gpu->active_list, struct msm_gem_object, mm_list); - if (obj->fence <= fence) { + if ((obj->read_fence <= fence) && + (obj->write_fence <= fence)) { /* move to inactive: */ msm_gem_move_to_inactive(&obj->base); msm_gem_put_iova(&obj->base, gpu->id); @@ -321,7 +322,11 @@ int msm_gpu_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit, submit->gpu->id, &iova); } - msm_gem_move_to_active(&msm_obj->base, gpu, submit->fence); + if (submit->bos[i].flags & MSM_SUBMIT_BO_READ) + msm_gem_move_to_active(&msm_obj->base, gpu, false, submit->fence); + + if (submit->bos[i].flags & MSM_SUBMIT_BO_WRITE) + msm_gem_move_to_active(&msm_obj->base, gpu, true, submit->fence); } hangcheck_timer_reset(gpu); mutex_unlock(&dev->struct_mutex); From 26791c48e1dcdc17c6c952585806b0ecc493f939 Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Tue, 3 Sep 2013 07:12:03 -0400 Subject: [PATCH 022/350] drm/msm: hangcheck harder If gpu locks up with the rptr shortly beyond the wrap-around point in the ringbuffer, because the rptr was not reset (but wptr is, by virtue of resetting rb->cur), we could end up in a scenario where we think there is not enough space in the ringbuffer for the next cmds. And since the CP won't reset rptr until after processing an IB, this leaves things in a sort of deadlock. So reset rptr too. And a bit more spiffing up of hangcheck to make things easier to debug. Signed-off-by: Rob Clark --- drivers/gpu/drm/msm/adreno/adreno_gpu.c | 10 +++++++++- drivers/gpu/drm/msm/msm_gpu.c | 9 ++++++++- 2 files changed, 17 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index a60584763b61..a0b9d8a95b16 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -124,6 +124,8 @@ void adreno_recover(struct msm_gpu *gpu) /* reset completed fence seqno, just discard anything pending: */ adreno_gpu->memptrs->fence = gpu->submitted_fence; + adreno_gpu->memptrs->rptr = 0; + adreno_gpu->memptrs->wptr = 0; gpu->funcs->pm_resume(gpu); ret = gpu->funcs->hw_init(gpu); @@ -229,7 +231,7 @@ void adreno_idle(struct msm_gpu *gpu) return; } while(time_before(jiffies, t)); - DRM_ERROR("timeout waiting for %s to drain ringbuffer!\n", gpu->name); + DRM_ERROR("%s: timeout waiting to drain ringbuffer!\n", gpu->name); /* TODO maybe we need to reset GPU here to recover from hang? */ } @@ -256,11 +258,17 @@ void adreno_wait_ring(struct msm_gpu *gpu, uint32_t ndwords) { struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); uint32_t freedwords; + unsigned long t = jiffies + ADRENO_IDLE_TIMEOUT; do { uint32_t size = gpu->rb->size / 4; uint32_t wptr = get_wptr(gpu->rb); uint32_t rptr = adreno_gpu->memptrs->rptr; freedwords = (rptr + (size - 1) - wptr) % size; + + if (time_after(jiffies, t)) { + DRM_ERROR("%s: timeout waiting for ringbuffer space\n", gpu->name); + break; + } } while(freedwords < ndwords); } diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c index cb9cdffdc41f..10cc44324166 100644 --- a/drivers/gpu/drm/msm/msm_gpu.c +++ b/drivers/gpu/drm/msm/msm_gpu.c @@ -237,8 +237,15 @@ static void hangcheck_handler(unsigned long data) gpu->hangcheck_fence = fence; } else if (fence < gpu->submitted_fence) { /* no progress and not done.. hung! */ - struct msm_drm_private *priv = gpu->dev->dev_private; + struct drm_device *dev = gpu->dev; + struct msm_drm_private *priv = dev->dev_private; gpu->hangcheck_fence = fence; + dev_err(dev->dev, "%s: hangcheck detected gpu lockup!\n", + gpu->name); + dev_err(dev->dev, "%s: completed fence: %u\n", + gpu->name, fence); + dev_err(dev->dev, "%s: submitted fence: %u\n", + gpu->name, gpu->submitted_fence); queue_work(priv->wq, &gpu->recover_work); } From 198725337ef1f73b73e7dc953c6ffb0799f26ffe Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Fri, 6 Sep 2013 15:36:40 -0400 Subject: [PATCH 023/350] drm/msm: fix cmdstream size check Need to check size+offset against bo size (duh!).. now we have a test case to make sure I've done it right: https://github.com/freedreno/msmtest/blob/master/submittest.c Also, use DRM_ERROR() for error case traces, which makes debugging userspace easier when enabling debug traces is too much. Signed-off-by: Rob Clark --- drivers/gpu/drm/msm/msm_gem_submit.c | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c index 3e1ef3a00f60..5281d4bc37f7 100644 --- a/drivers/gpu/drm/msm/msm_gem_submit.c +++ b/drivers/gpu/drm/msm/msm_gem_submit.c @@ -78,7 +78,7 @@ static int submit_lookup_objects(struct msm_gem_submit *submit, } if (submit_bo.flags & BO_INVALID_FLAGS) { - DBG("invalid flags: %x", submit_bo.flags); + DRM_ERROR("invalid flags: %x\n", submit_bo.flags); ret = -EINVAL; goto out_unlock; } @@ -92,7 +92,7 @@ static int submit_lookup_objects(struct msm_gem_submit *submit, */ obj = idr_find(&file->object_idr, submit_bo.handle); if (!obj) { - DBG("invalid handle %u at index %u", submit_bo.handle, i); + DRM_ERROR("invalid handle %u at index %u\n", submit_bo.handle, i); ret = -EINVAL; goto out_unlock; } @@ -100,7 +100,7 @@ static int submit_lookup_objects(struct msm_gem_submit *submit, msm_obj = to_msm_bo(obj); if (!list_empty(&msm_obj->submit_entry)) { - DBG("handle %u at index %u already on submit list", + DRM_ERROR("handle %u at index %u already on submit list\n", submit_bo.handle, i); ret = -EINVAL; goto out_unlock; @@ -216,8 +216,9 @@ static int submit_bo(struct msm_gem_submit *submit, uint32_t idx, struct msm_gem_object **obj, uint32_t *iova, bool *valid) { if (idx >= submit->nr_bos) { - DBG("invalid buffer index: %u (out of %u)", idx, submit->nr_bos); - return EINVAL; + DRM_ERROR("invalid buffer index: %u (out of %u)\n", + idx, submit->nr_bos); + return -EINVAL; } if (obj) @@ -239,7 +240,7 @@ static int submit_reloc(struct msm_gem_submit *submit, struct msm_gem_object *ob int ret; if (offset % 4) { - DBG("non-aligned cmdstream buffer: %u", offset); + DRM_ERROR("non-aligned cmdstream buffer: %u\n", offset); return -EINVAL; } @@ -266,7 +267,7 @@ static int submit_reloc(struct msm_gem_submit *submit, struct msm_gem_object *ob return -EFAULT; if (submit_reloc.submit_offset % 4) { - DBG("non-aligned reloc offset: %u", + DRM_ERROR("non-aligned reloc offset: %u\n", submit_reloc.submit_offset); return -EINVAL; } @@ -276,7 +277,7 @@ static int submit_reloc(struct msm_gem_submit *submit, struct msm_gem_object *ob if ((off >= (obj->base.size / 4)) || (off < last_offset)) { - DBG("invalid offset %u at reloc %u", off, i); + DRM_ERROR("invalid offset %u at reloc %u\n", off, i); return -EINVAL; } @@ -374,14 +375,15 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data, goto out; if (submit_cmd.size % 4) { - DBG("non-aligned cmdstream buffer size: %u", + DRM_ERROR("non-aligned cmdstream buffer size: %u\n", submit_cmd.size); ret = -EINVAL; goto out; } - if (submit_cmd.size >= msm_obj->base.size) { - DBG("invalid cmdstream size: %u", submit_cmd.size); + if ((submit_cmd.size + submit_cmd.submit_offset) >= + msm_obj->base.size) { + DRM_ERROR("invalid cmdstream size: %u\n", submit_cmd.size); ret = -EINVAL; goto out; } From 8b59f017e4c3f6d30427440014aba8ac25ccb867 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Thu, 5 Sep 2013 22:37:08 +0100 Subject: [PATCH 024/350] sfc: Disable PTP on EF10 until we're ready to handle inline RX timestamps Unlike Siena where timestamping is provided by a peripheral, EF10 delivers RX timestamps in the packet prefix. However the driver doesn't yet support this. We are also creating a PHC device for each EF10 function, even though the clock is really shared between all of them. Disable hardware PTP/timestamping support until it's complete. Signed-off-by: Ben Hutchings --- drivers/net/ethernet/sfc/ef10.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c index 5f42313b4965..357a6e5229c7 100644 --- a/drivers/net/ethernet/sfc/ef10.c +++ b/drivers/net/ethernet/sfc/ef10.c @@ -260,8 +260,6 @@ static int efx_ef10_probe(struct efx_nic *efx) if (rc) goto fail3; - efx_ptp_probe(efx); - return 0; fail3: From 869070c5300d1b6f0f72f5444e69fe65e34c6bde Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Thu, 5 Sep 2013 22:46:10 +0100 Subject: [PATCH 025/350] sfc: Reset derived rx_bad_bytes statistic when EF10 MC is rebooted If the MC reboots then the stats it reports to us will have been reset. We need to reset ours to get efx_update_diff_stat() working properly. (This is a re-run of commit 876be083b669 'sfc: Reset driver's MAC stats after MC reboot seen'.) Signed-off-by: Ben Hutchings --- drivers/net/ethernet/sfc/ef10.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c index 357a6e5229c7..80a6eea49e36 100644 --- a/drivers/net/ethernet/sfc/ef10.c +++ b/drivers/net/ethernet/sfc/ef10.c @@ -708,6 +708,11 @@ static int efx_ef10_mcdi_poll_reboot(struct efx_nic *efx) nic_data->must_restore_filters = true; nic_data->rx_rss_context = EFX_EF10_RSS_CONTEXT_INVALID; + /* MAC statistics have been cleared on the NIC; clear the local + * statistic that we update with efx_update_diff_stat(). + */ + nic_data->stats[EF10_STAT_rx_bad_bytes] = 0; + return -EIO; } From e5a2538a48309b9aac12e517782e1fa514a0f9b3 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Thu, 5 Sep 2013 22:50:59 +0100 Subject: [PATCH 026/350] sfc: Clean up validation of datapath capabilities Rename efx_ef10_init_capabilities() to the more specific efx_ef10_init_datapath_caps(). Stop accepting short responses to MC_CMD_GET_CAPABILITIES; we don't need to support pre-production firmware. Move the check for RX prefix support from efx_ef10_probe() into efx_ef10_init_datapath_caps() and use consistent error messages for missing TSO support and missing RX prefix support. Signed-off-by: Ben Hutchings --- drivers/net/ethernet/sfc/ef10.c | 41 ++++++++++++++++++--------------- 1 file changed, 22 insertions(+), 19 deletions(-) diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c index 80a6eea49e36..a4956b86d145 100644 --- a/drivers/net/ethernet/sfc/ef10.c +++ b/drivers/net/ethernet/sfc/ef10.c @@ -94,7 +94,7 @@ static unsigned int efx_ef10_mem_map_size(struct efx_nic *efx) return resource_size(&efx->pci_dev->resource[EFX_MEM_BAR]); } -static int efx_ef10_init_capabilities(struct efx_nic *efx) +static int efx_ef10_init_datapath_caps(struct efx_nic *efx) { MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_CAPABILITIES_OUT_LEN); struct efx_ef10_nic_data *nic_data = efx->nic_data; @@ -107,16 +107,27 @@ static int efx_ef10_init_capabilities(struct efx_nic *efx) outbuf, sizeof(outbuf), &outlen); if (rc) return rc; + if (outlen < sizeof(outbuf)) { + netif_err(efx, drv, efx->net_dev, + "unable to read datapath firmware capabilities\n"); + return -EIO; + } - if (outlen >= sizeof(outbuf)) { - nic_data->datapath_caps = - MCDI_DWORD(outbuf, GET_CAPABILITIES_OUT_FLAGS1); - if (!(nic_data->datapath_caps & - (1 << MC_CMD_GET_CAPABILITIES_OUT_TX_TSO_LBN))) { - netif_err(efx, drv, efx->net_dev, - "Capabilities don't indicate TSO support.\n"); - return -ENODEV; - } + nic_data->datapath_caps = + MCDI_DWORD(outbuf, GET_CAPABILITIES_OUT_FLAGS1); + + if (!(nic_data->datapath_caps & + (1 << MC_CMD_GET_CAPABILITIES_OUT_TX_TSO_LBN))) { + netif_err(efx, drv, efx->net_dev, + "current firmware does not support TSO\n"); + return -ENODEV; + } + + if (!(nic_data->datapath_caps & + (1 << MC_CMD_GET_CAPABILITIES_OUT_RX_PREFIX_LEN_14_LBN))) { + netif_err(efx, probe, efx->net_dev, + "current firmware does not support an RX prefix\n"); + return -ENODEV; } return 0; @@ -217,21 +228,13 @@ static int efx_ef10_probe(struct efx_nic *efx) if (rc) goto fail3; - rc = efx_ef10_init_capabilities(efx); + rc = efx_ef10_init_datapath_caps(efx); if (rc < 0) goto fail3; efx->rx_packet_len_offset = ES_DZ_RX_PREFIX_PKTLEN_OFST - ES_DZ_RX_PREFIX_SIZE; - if (!(nic_data->datapath_caps & - (1 << MC_CMD_GET_CAPABILITIES_OUT_RX_PREFIX_LEN_14_LBN))) { - netif_err(efx, probe, efx->net_dev, - "current firmware does not support an RX prefix\n"); - rc = -ENODEV; - goto fail3; - } - rc = efx_mcdi_port_get_number(efx); if (rc < 0) goto fail3; From a915ccc9f2c80aa4c329262d89f93ea16d8792c9 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Thu, 5 Sep 2013 22:51:55 +0100 Subject: [PATCH 027/350] sfc: Reinitialise and re-validate datapath caps after MC reboot After an MC reboot, the datapath may be running a different firmware variant and have different capabilities. It is critical that we know the current capabilities so that we can pass valid flags to MC_CMD_INIT_EVQ. Signed-off-by: Ben Hutchings --- drivers/net/ethernet/sfc/ef10.c | 10 ++++++++++ drivers/net/ethernet/sfc/nic.h | 3 +++ 2 files changed, 13 insertions(+) diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c index a4956b86d145..9f18ae984f9e 100644 --- a/drivers/net/ethernet/sfc/ef10.c +++ b/drivers/net/ethernet/sfc/ef10.c @@ -343,6 +343,13 @@ static int efx_ef10_init_nic(struct efx_nic *efx) struct efx_ef10_nic_data *nic_data = efx->nic_data; int rc; + if (nic_data->must_check_datapath_caps) { + rc = efx_ef10_init_datapath_caps(efx); + if (rc) + return rc; + nic_data->must_check_datapath_caps = false; + } + if (nic_data->must_realloc_vis) { /* We cannot let the number of VIs change now */ rc = efx_ef10_alloc_vis(efx, nic_data->n_allocated_vis, @@ -711,6 +718,9 @@ static int efx_ef10_mcdi_poll_reboot(struct efx_nic *efx) nic_data->must_restore_filters = true; nic_data->rx_rss_context = EFX_EF10_RSS_CONTEXT_INVALID; + /* The datapath firmware might have been changed */ + nic_data->must_check_datapath_caps = true; + /* MAC statistics have been cleared on the NIC; clear the local * statistic that we update with efx_update_diff_stat(). */ diff --git a/drivers/net/ethernet/sfc/nic.h b/drivers/net/ethernet/sfc/nic.h index 4b1e188f7a2f..fda29d39032f 100644 --- a/drivers/net/ethernet/sfc/nic.h +++ b/drivers/net/ethernet/sfc/nic.h @@ -400,6 +400,8 @@ enum { * @rx_rss_context: Firmware handle for our RSS context * @stats: Hardware statistics * @workaround_35388: Flag: firmware supports workaround for bug 35388 + * @must_check_datapath_caps: Flag: @datapath_caps needs to be revalidated + * after MC reboot * @datapath_caps: Capabilities of datapath firmware (FLAGS1 field of * %MC_CMD_GET_CAPABILITIES response) */ @@ -413,6 +415,7 @@ struct efx_ef10_nic_data { u32 rx_rss_context; u64 stats[EF10_STAT_COUNT]; bool workaround_35388; + bool must_check_datapath_caps; u32 datapath_caps; }; From 4214faf6210a107ba83b2cfb67287f3265ea6e12 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 3 Sep 2013 10:17:13 -0400 Subject: [PATCH 028/350] drm/radeon/cik: properly handle internal cp ints The internal cp interrupts need to be enabled and disabled at specific times in order clockgating to work properly. This patch changes the handling of the CP_INT_CNTL register to respect the current state of the internal CP interrupts when making changes to the other interrupts in CP_INT_CNTL. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/cik.c | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c index a3bba0587276..07aa13deaa15 100644 --- a/drivers/gpu/drm/radeon/cik.c +++ b/drivers/gpu/drm/radeon/cik.c @@ -77,6 +77,8 @@ static void cik_pcie_gen3_enable(struct radeon_device *rdev); static void cik_program_aspm(struct radeon_device *rdev); static void cik_init_pg(struct radeon_device *rdev); static void cik_init_cg(struct radeon_device *rdev); +static void cik_enable_gui_idle_interrupt(struct radeon_device *rdev, + bool enable); /* get temperature in millidegrees */ int ci_get_temp(struct radeon_device *rdev) @@ -4013,6 +4015,8 @@ static int cik_cp_resume(struct radeon_device *rdev) { int r; + cik_enable_gui_idle_interrupt(rdev, false); + r = cik_cp_load_microcode(rdev); if (r) return r; @@ -4024,6 +4028,8 @@ static int cik_cp_resume(struct radeon_device *rdev) if (r) return r; + cik_enable_gui_idle_interrupt(rdev, true); + return 0; } @@ -5376,7 +5382,9 @@ static void cik_enable_hdp_ls(struct radeon_device *rdev, void cik_update_cg(struct radeon_device *rdev, u32 block, bool enable) { + if (block & RADEON_CG_BLOCK_GFX) { + cik_enable_gui_idle_interrupt(rdev, false); /* order matters! */ if (enable) { cik_enable_mgcg(rdev, true); @@ -5385,6 +5393,7 @@ void cik_update_cg(struct radeon_device *rdev, cik_enable_cgcg(rdev, false); cik_enable_mgcg(rdev, false); } + cik_enable_gui_idle_interrupt(rdev, true); } if (block & RADEON_CG_BLOCK_MC) { @@ -5895,7 +5904,9 @@ static void cik_disable_interrupt_state(struct radeon_device *rdev) u32 tmp; /* gfx ring */ - WREG32(CP_INT_CNTL_RING0, CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE); + tmp = RREG32(CP_INT_CNTL_RING0) & + (CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE); + WREG32(CP_INT_CNTL_RING0, tmp); /* sdma */ tmp = RREG32(SDMA0_CNTL + SDMA0_REGISTER_OFFSET) & ~TRAP_ENABLE; WREG32(SDMA0_CNTL + SDMA0_REGISTER_OFFSET, tmp); @@ -6036,8 +6047,7 @@ static int cik_irq_init(struct radeon_device *rdev) */ int cik_irq_set(struct radeon_device *rdev) { - u32 cp_int_cntl = CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE | - PRIV_INSTR_INT_ENABLE | PRIV_REG_INT_ENABLE; + u32 cp_int_cntl; u32 cp_m1p0, cp_m1p1, cp_m1p2, cp_m1p3; u32 cp_m2p0, cp_m2p1, cp_m2p2, cp_m2p3; u32 crtc1 = 0, crtc2 = 0, crtc3 = 0, crtc4 = 0, crtc5 = 0, crtc6 = 0; @@ -6058,6 +6068,10 @@ int cik_irq_set(struct radeon_device *rdev) return 0; } + cp_int_cntl = RREG32(CP_INT_CNTL_RING0) & + (CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE); + cp_int_cntl |= PRIV_INSTR_INT_ENABLE | PRIV_REG_INT_ENABLE; + hpd1 = RREG32(DC_HPD1_INT_CONTROL) & ~DC_HPDx_INT_EN; hpd2 = RREG32(DC_HPD2_INT_CONTROL) & ~DC_HPDx_INT_EN; hpd3 = RREG32(DC_HPD3_INT_CONTROL) & ~DC_HPDx_INT_EN; From 811e4d58edf98f1ff5d3478e2c5f61034d359ab3 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 3 Sep 2013 13:31:33 -0400 Subject: [PATCH 029/350] drm/radeon/si: properly handle internal cp ints The internal cp interrupts need to be enabled and disabled at specific times in order clockgating to work properly. This patch changes the handling of the CP_INT_CNTL register to respect the current state of the internal CP interrupts when making changes to the other interrupts in CP_INT_CNTL. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/si.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index 3e23b757dcfa..1328fe5a8001 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -83,6 +83,8 @@ extern void si_dma_vm_set_page(struct radeon_device *rdev, uint64_t pe, uint64_t addr, unsigned count, uint32_t incr, uint32_t flags); +static void si_enable_gui_idle_interrupt(struct radeon_device *rdev, + bool enable); static const u32 verde_rlc_save_restore_register_list[] = { @@ -3386,6 +3388,8 @@ static int si_cp_resume(struct radeon_device *rdev) u32 rb_bufsz; int r; + si_enable_gui_idle_interrupt(rdev, false); + WREG32(CP_SEM_WAIT_TIMER, 0x0); WREG32(CP_SEM_INCOMPLETE_TIMER_CNTL, 0x0); @@ -3501,6 +3505,8 @@ static int si_cp_resume(struct radeon_device *rdev) rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX].ready = false; } + si_enable_gui_idle_interrupt(rdev, true); + return 0; } @@ -5250,6 +5256,7 @@ void si_update_cg(struct radeon_device *rdev, u32 block, bool enable) { if (block & RADEON_CG_BLOCK_GFX) { + si_enable_gui_idle_interrupt(rdev, false); /* order matters! */ if (enable) { si_enable_mgcg(rdev, true); @@ -5258,6 +5265,7 @@ void si_update_cg(struct radeon_device *rdev, si_enable_cgcg(rdev, false); si_enable_mgcg(rdev, false); } + si_enable_gui_idle_interrupt(rdev, true); } if (block & RADEON_CG_BLOCK_MC) { @@ -5560,7 +5568,9 @@ static void si_disable_interrupt_state(struct radeon_device *rdev) { u32 tmp; - WREG32(CP_INT_CNTL_RING0, CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE); + tmp = RREG32(CP_INT_CNTL_RING0) & + (CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE); + WREG32(CP_INT_CNTL_RING0, tmp); WREG32(CP_INT_CNTL_RING1, 0); WREG32(CP_INT_CNTL_RING2, 0); tmp = RREG32(DMA_CNTL + DMA0_REGISTER_OFFSET) & ~TRAP_ENABLE; @@ -5685,7 +5695,7 @@ static int si_irq_init(struct radeon_device *rdev) int si_irq_set(struct radeon_device *rdev) { - u32 cp_int_cntl = CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE; + u32 cp_int_cntl; u32 cp_int_cntl1 = 0, cp_int_cntl2 = 0; u32 crtc1 = 0, crtc2 = 0, crtc3 = 0, crtc4 = 0, crtc5 = 0, crtc6 = 0; u32 hpd1 = 0, hpd2 = 0, hpd3 = 0, hpd4 = 0, hpd5 = 0, hpd6 = 0; @@ -5706,6 +5716,9 @@ int si_irq_set(struct radeon_device *rdev) return 0; } + cp_int_cntl = RREG32(CP_INT_CNTL_RING0) & + (CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE); + if (!ASIC_IS_NODCE(rdev)) { hpd1 = RREG32(DC_HPD1_INT_CONTROL) & ~DC_HPDx_INT_EN; hpd2 = RREG32(DC_HPD2_INT_CONTROL) & ~DC_HPDx_INT_EN; From 63580c3e48de1a35ec8847ea24f1acb5aef48608 Mon Sep 17 00:00:00 2001 From: Anthoine Bourgeois Date: Tue, 3 Sep 2013 13:52:19 -0400 Subject: [PATCH 030/350] drm/radeon/dpm: implement force performance levels for rs780 (v2) Allows you to limit the selected power levels via sysfs. Force the feedback divider to select a power level. v2: fix checking in rs780_force_fbdiv, drop a duplicate divider structure in rs780_dpm_force_performance_level, Force the voltage level too. Signed-off-by: Anthoine Bourgeois Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/radeon_asic.c | 1 + drivers/gpu/drm/radeon/radeon_asic.h | 2 + drivers/gpu/drm/radeon/rs780_dpm.c | 89 +++++++++++++++++++++++----- 3 files changed, 77 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c index 630853b96841..40a9b4bc3291 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.c +++ b/drivers/gpu/drm/radeon/radeon_asic.c @@ -1141,6 +1141,7 @@ static struct radeon_asic rs780_asic = { .get_mclk = &rs780_dpm_get_mclk, .print_power_state = &rs780_dpm_print_power_state, .debugfs_print_current_performance_level = &rs780_dpm_debugfs_print_current_performance_level, + .force_performance_level = &rs780_dpm_force_performance_level, }, .pflip = { .pre_page_flip = &rs600_pre_page_flip, diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h index 818bbe6b884b..98a59f5d6edc 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -428,6 +428,8 @@ void rs780_dpm_print_power_state(struct radeon_device *rdev, struct radeon_ps *ps); void rs780_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev, struct seq_file *m); +int rs780_dpm_force_performance_level(struct radeon_device *rdev, + enum radeon_dpm_forced_level level); /* * rv770,rv730,rv710,rv740 diff --git a/drivers/gpu/drm/radeon/rs780_dpm.c b/drivers/gpu/drm/radeon/rs780_dpm.c index d1a1ce73bd45..625d6ea1f0d1 100644 --- a/drivers/gpu/drm/radeon/rs780_dpm.c +++ b/drivers/gpu/drm/radeon/rs780_dpm.c @@ -376,9 +376,8 @@ static void rs780_disable_vbios_powersaving(struct radeon_device *rdev) WREG32_P(CG_INTGFX_MISC, 0, ~0xFFF00000); } -static void rs780_force_voltage_to_high(struct radeon_device *rdev) +static void rs780_force_voltage(struct radeon_device *rdev, u16 voltage) { - struct igp_power_info *pi = rs780_get_pi(rdev); struct igp_ps *current_state = rs780_get_ps(rdev->pm.dpm.current_ps); if ((current_state->max_voltage == RS780_VDDC_LEVEL_HIGH) && @@ -390,7 +389,7 @@ static void rs780_force_voltage_to_high(struct radeon_device *rdev) udelay(1); WREG32_P(FVTHROT_PWM_CTRL_REG0, - STARTING_PWM_HIGHTIME(pi->max_voltage), + STARTING_PWM_HIGHTIME(voltage), ~STARTING_PWM_HIGHTIME_MASK); WREG32_P(FVTHROT_PWM_CTRL_REG0, @@ -404,6 +403,26 @@ static void rs780_force_voltage_to_high(struct radeon_device *rdev) WREG32_P(GFX_MACRO_BYPASS_CNTL, 0, ~SPLL_BYPASS_CNTL); } +static void rs780_force_fbdiv(struct radeon_device *rdev, u32 fb_div) +{ + struct igp_ps *current_state = rs780_get_ps(rdev->pm.dpm.current_ps); + + if (current_state->sclk_low == current_state->sclk_high) + return; + + WREG32_P(GFX_MACRO_BYPASS_CNTL, SPLL_BYPASS_CNTL, ~SPLL_BYPASS_CNTL); + + WREG32_P(FVTHROT_FBDIV_REG2, FORCED_FEEDBACK_DIV(fb_div), + ~FORCED_FEEDBACK_DIV_MASK); + WREG32_P(FVTHROT_FBDIV_REG1, STARTING_FEEDBACK_DIV(fb_div), + ~STARTING_FEEDBACK_DIV_MASK); + WREG32_P(FVTHROT_FBDIV_REG1, FORCE_FEEDBACK_DIV, ~FORCE_FEEDBACK_DIV); + + udelay(100); + + WREG32_P(GFX_MACRO_BYPASS_CNTL, 0, ~SPLL_BYPASS_CNTL); +} + static int rs780_set_engine_clock_scaling(struct radeon_device *rdev, struct radeon_ps *new_ps, struct radeon_ps *old_ps) @@ -432,17 +451,7 @@ static int rs780_set_engine_clock_scaling(struct radeon_device *rdev, if (ret) return ret; - WREG32_P(GFX_MACRO_BYPASS_CNTL, SPLL_BYPASS_CNTL, ~SPLL_BYPASS_CNTL); - - WREG32_P(FVTHROT_FBDIV_REG2, FORCED_FEEDBACK_DIV(max_dividers.fb_div), - ~FORCED_FEEDBACK_DIV_MASK); - WREG32_P(FVTHROT_FBDIV_REG1, STARTING_FEEDBACK_DIV(max_dividers.fb_div), - ~STARTING_FEEDBACK_DIV_MASK); - WREG32_P(FVTHROT_FBDIV_REG1, FORCE_FEEDBACK_DIV, ~FORCE_FEEDBACK_DIV); - - udelay(100); - - WREG32_P(GFX_MACRO_BYPASS_CNTL, 0, ~SPLL_BYPASS_CNTL); + rs780_force_fbdiv(rdev, max_dividers.fb_div); if (max_dividers.fb_div > min_dividers.fb_div) { WREG32_P(FVTHROT_FBDIV_REG0, @@ -649,7 +658,7 @@ int rs780_dpm_set_power_state(struct radeon_device *rdev) rs780_set_uvd_clock_before_set_eng_clock(rdev, new_ps, old_ps); if (pi->voltage_control) { - rs780_force_voltage_to_high(rdev); + rs780_force_voltage(rdev, pi->max_voltage); mdelay(5); } @@ -986,3 +995,53 @@ void rs780_dpm_debugfs_print_current_performance_level(struct radeon_device *rde seq_printf(m, "power level 1 sclk: %u vddc_index: %d\n", ps->sclk_high, ps->max_voltage); } + +int rs780_dpm_force_performance_level(struct radeon_device *rdev, + enum radeon_dpm_forced_level level) +{ + struct igp_power_info *pi = rs780_get_pi(rdev); + struct radeon_ps *rps = rdev->pm.dpm.current_ps; + struct igp_ps *ps = rs780_get_ps(rps); + struct atom_clock_dividers dividers; + int ret; + + rs780_clk_scaling_enable(rdev, false); + rs780_voltage_scaling_enable(rdev, false); + + if (level == RADEON_DPM_FORCED_LEVEL_HIGH) { + if (pi->voltage_control) + rs780_force_voltage(rdev, pi->max_voltage); + + ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM, + ps->sclk_high, false, ÷rs); + if (ret) + return ret; + + rs780_force_fbdiv(rdev, dividers.fb_div); + } else if (level == RADEON_DPM_FORCED_LEVEL_LOW) { + ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM, + ps->sclk_low, false, ÷rs); + if (ret) + return ret; + + rs780_force_fbdiv(rdev, dividers.fb_div); + + if (pi->voltage_control) + rs780_force_voltage(rdev, pi->min_voltage); + } else { + if (pi->voltage_control) + rs780_force_voltage(rdev, pi->max_voltage); + + WREG32_P(FVTHROT_FBDIV_REG1, 0, ~FORCE_FEEDBACK_DIV); + rs780_clk_scaling_enable(rdev, true); + + if (pi->voltage_control) { + rs780_voltage_scaling_enable(rdev, true); + rs780_enable_voltage_scaling(rdev, rps); + } + } + + rdev->pm.dpm.forced_level = level; + + return 0; +} From 7cc0a3d85b5d4acb69d60a88de0bd029bef04b4f Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 3 Sep 2013 14:03:21 -0400 Subject: [PATCH 031/350] drm/radeon/dce6/audio: make sure pin is valid before accessing it Make sure the audio pin is valid before accessing its members. Noticed by: Dan Carpenter Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/dce6_afmt.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/radeon/dce6_afmt.c b/drivers/gpu/drm/radeon/dce6_afmt.c index 8953255e894b..3853dda797dd 100644 --- a/drivers/gpu/drm/radeon/dce6_afmt.c +++ b/drivers/gpu/drm/radeon/dce6_afmt.c @@ -86,12 +86,12 @@ void dce6_afmt_select_pin(struct drm_encoder *encoder) struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; u32 offset = dig->afmt->offset; - u32 id = dig->afmt->pin->id; if (!dig->afmt->pin) return; - WREG32(AFMT_AUDIO_SRC_CONTROL + offset, AFMT_AUDIO_SRC_SELECT(id)); + WREG32(AFMT_AUDIO_SRC_CONTROL + offset, + AFMT_AUDIO_SRC_SELECT(dig->afmt->pin->id)); } void dce6_afmt_write_speaker_allocation(struct drm_encoder *encoder) From 8666c076df307088c86a47117e1b124a6d2fa5b0 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 3 Sep 2013 14:58:44 -0400 Subject: [PATCH 032/350] drm/radeon: add a connector property for audio This provides a connector property to enable/disable hdmi audio on the fly. The default is disabled, but you can select auto (let the driver detect an audio capable monitor and enable it) or enabled (force audio enabled). This also enables audio by default so you no longer need a module parameter to enable audio. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/atombios_encoders.c | 15 ++++++---- drivers/gpu/drm/radeon/radeon_connectors.c | 33 ++++++++++++++++++++++ drivers/gpu/drm/radeon/radeon_display.c | 12 ++++++++ drivers/gpu/drm/radeon/radeon_drv.c | 2 +- drivers/gpu/drm/radeon/radeon_mode.h | 9 ++++++ 5 files changed, 64 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c index dfac7965ea28..9166e0b95a0a 100644 --- a/drivers/gpu/drm/radeon/atombios_encoders.c +++ b/drivers/gpu/drm/radeon/atombios_encoders.c @@ -707,8 +707,9 @@ atombios_get_encoder_mode(struct drm_encoder *encoder) switch (connector->connector_type) { case DRM_MODE_CONNECTOR_DVII: case DRM_MODE_CONNECTOR_HDMIB: /* HDMI-B is basically DL-DVI; analog works fine */ - if (drm_detect_hdmi_monitor(radeon_connector->edid) && - radeon_audio) + if ((radeon_connector->audio == RADEON_AUDIO_ENABLE) || + (drm_detect_hdmi_monitor(radeon_connector->edid) && + (radeon_connector->audio == RADEON_AUDIO_AUTO))) return ATOM_ENCODER_MODE_HDMI; else if (radeon_connector->use_digital) return ATOM_ENCODER_MODE_DVI; @@ -718,8 +719,9 @@ atombios_get_encoder_mode(struct drm_encoder *encoder) case DRM_MODE_CONNECTOR_DVID: case DRM_MODE_CONNECTOR_HDMIA: default: - if (drm_detect_hdmi_monitor(radeon_connector->edid) && - radeon_audio) + if ((radeon_connector->audio == RADEON_AUDIO_ENABLE) || + (drm_detect_hdmi_monitor(radeon_connector->edid) && + (radeon_connector->audio == RADEON_AUDIO_AUTO))) return ATOM_ENCODER_MODE_HDMI; else return ATOM_ENCODER_MODE_DVI; @@ -732,8 +734,9 @@ atombios_get_encoder_mode(struct drm_encoder *encoder) if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) || (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) return ATOM_ENCODER_MODE_DP; - else if (drm_detect_hdmi_monitor(radeon_connector->edid) && - radeon_audio) + else if ((radeon_connector->audio == RADEON_AUDIO_ENABLE) || + (drm_detect_hdmi_monitor(radeon_connector->edid) && + (radeon_connector->audio == RADEON_AUDIO_AUTO))) return ATOM_ENCODER_MODE_HDMI; else return ATOM_ENCODER_MODE_DVI; diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index 2399f25ec037..cbbdc8500881 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -396,6 +396,21 @@ static int radeon_connector_set_property(struct drm_connector *connector, struct } } + if (property == rdev->mode_info.audio_property) { + struct radeon_connector *radeon_connector = to_radeon_connector(connector); + /* need to find digital encoder on connector */ + encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS); + if (!encoder) + return 0; + + radeon_encoder = to_radeon_encoder(encoder); + + if (radeon_connector->audio != val) { + radeon_connector->audio = val; + radeon_property_change_mode(&radeon_encoder->base); + } + } + if (property == rdev->mode_info.underscan_property) { /* need to find digital encoder on connector */ encoder = radeon_find_encoder(connector, DRM_MODE_ENCODER_TMDS); @@ -1619,6 +1634,9 @@ radeon_add_atom_connector(struct drm_device *dev, drm_object_attach_property(&radeon_connector->base.base, rdev->mode_info.underscan_vborder_property, 0); + drm_object_attach_property(&radeon_connector->base.base, + rdev->mode_info.audio_property, + RADEON_AUDIO_DISABLE); subpixel_order = SubPixelHorizontalRGB; connector->interlace_allowed = true; if (connector_type == DRM_MODE_CONNECTOR_HDMIB) @@ -1708,6 +1726,11 @@ radeon_add_atom_connector(struct drm_device *dev, rdev->mode_info.underscan_vborder_property, 0); } + if (ASIC_IS_DCE2(rdev)) { + drm_object_attach_property(&radeon_connector->base.base, + rdev->mode_info.audio_property, + RADEON_AUDIO_DISABLE); + } if (connector_type == DRM_MODE_CONNECTOR_DVII) { radeon_connector->dac_load_detect = true; drm_object_attach_property(&radeon_connector->base.base, @@ -1748,6 +1771,11 @@ radeon_add_atom_connector(struct drm_device *dev, rdev->mode_info.underscan_vborder_property, 0); } + if (ASIC_IS_DCE2(rdev)) { + drm_object_attach_property(&radeon_connector->base.base, + rdev->mode_info.audio_property, + RADEON_AUDIO_DISABLE); + } subpixel_order = SubPixelHorizontalRGB; connector->interlace_allowed = true; if (connector_type == DRM_MODE_CONNECTOR_HDMIB) @@ -1787,6 +1815,11 @@ radeon_add_atom_connector(struct drm_device *dev, rdev->mode_info.underscan_vborder_property, 0); } + if (ASIC_IS_DCE2(rdev)) { + drm_object_attach_property(&radeon_connector->base.base, + rdev->mode_info.audio_property, + RADEON_AUDIO_DISABLE); + } connector->interlace_allowed = true; /* in theory with a DP to VGA converter... */ connector->doublescan_allowed = false; diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index b055bddaa94c..0d1aa050d41d 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -1172,6 +1172,12 @@ static struct drm_prop_enum_list radeon_underscan_enum_list[] = { UNDERSCAN_AUTO, "auto" }, }; +static struct drm_prop_enum_list radeon_audio_enum_list[] = +{ { RADEON_AUDIO_DISABLE, "off" }, + { RADEON_AUDIO_ENABLE, "on" }, + { RADEON_AUDIO_AUTO, "auto" }, +}; + static int radeon_modeset_create_props(struct radeon_device *rdev) { int sz; @@ -1222,6 +1228,12 @@ static int radeon_modeset_create_props(struct radeon_device *rdev) if (!rdev->mode_info.underscan_vborder_property) return -ENOMEM; + sz = ARRAY_SIZE(radeon_audio_enum_list); + rdev->mode_info.audio_property = + drm_property_create_enum(rdev->ddev, 0, + "audio", + radeon_audio_enum_list, sz); + return 0; } diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index cb4445f55a96..cdd12dcd988b 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -153,7 +153,7 @@ int radeon_benchmarking = 0; int radeon_testing = 0; int radeon_connector_table = 0; int radeon_tv = 1; -int radeon_audio = 0; +int radeon_audio = 1; int radeon_disp_priority = 0; int radeon_hw_i2c = 0; int radeon_pcie_gen2 = -1; diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h index d908d8d68f6b..ef63d3f00b2f 100644 --- a/drivers/gpu/drm/radeon/radeon_mode.h +++ b/drivers/gpu/drm/radeon/radeon_mode.h @@ -247,6 +247,8 @@ struct radeon_mode_info { struct drm_property *underscan_property; struct drm_property *underscan_hborder_property; struct drm_property *underscan_vborder_property; + /* audio */ + struct drm_property *audio_property; /* hardcoded DFP edid from BIOS */ struct edid *bios_hardcoded_edid; int bios_hardcoded_edid_size; @@ -471,6 +473,12 @@ struct radeon_router { u8 cd_mux_state; }; +enum radeon_connector_audio { + RADEON_AUDIO_DISABLE = 0, + RADEON_AUDIO_ENABLE = 1, + RADEON_AUDIO_AUTO = 2 +}; + struct radeon_connector { struct drm_connector base; uint32_t connector_id; @@ -489,6 +497,7 @@ struct radeon_connector { struct radeon_hpd hpd; struct radeon_router router; struct radeon_i2c_chan *router_bus; + enum radeon_connector_audio audio; }; struct radeon_framebuffer { From 41cd0b3b78d83ae87ee71cca2de5498f93816763 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 4 Sep 2013 12:32:52 +0300 Subject: [PATCH 033/350] drm/radeon: clean up r600_free_extended_power_table() kfree() can accept NULL pointers so I have removed the checks. Also I've used a pointer to shorten the lines. Signed-off-by: Dan Carpenter Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/r600_dpm.c | 38 ++++++++++++------------------- 1 file changed, 14 insertions(+), 24 deletions(-) diff --git a/drivers/gpu/drm/radeon/r600_dpm.c b/drivers/gpu/drm/radeon/r600_dpm.c index fa0de46fcc0d..e65f211a7be0 100644 --- a/drivers/gpu/drm/radeon/r600_dpm.c +++ b/drivers/gpu/drm/radeon/r600_dpm.c @@ -1219,30 +1219,20 @@ int r600_parse_extended_power_table(struct radeon_device *rdev) void r600_free_extended_power_table(struct radeon_device *rdev) { - if (rdev->pm.dpm.dyn_state.vddc_dependency_on_sclk.entries) - kfree(rdev->pm.dpm.dyn_state.vddc_dependency_on_sclk.entries); - if (rdev->pm.dpm.dyn_state.vddci_dependency_on_mclk.entries) - kfree(rdev->pm.dpm.dyn_state.vddci_dependency_on_mclk.entries); - if (rdev->pm.dpm.dyn_state.vddc_dependency_on_mclk.entries) - kfree(rdev->pm.dpm.dyn_state.vddc_dependency_on_mclk.entries); - if (rdev->pm.dpm.dyn_state.mvdd_dependency_on_mclk.entries) - kfree(rdev->pm.dpm.dyn_state.mvdd_dependency_on_mclk.entries); - if (rdev->pm.dpm.dyn_state.cac_leakage_table.entries) - kfree(rdev->pm.dpm.dyn_state.cac_leakage_table.entries); - if (rdev->pm.dpm.dyn_state.phase_shedding_limits_table.entries) - kfree(rdev->pm.dpm.dyn_state.phase_shedding_limits_table.entries); - if (rdev->pm.dpm.dyn_state.ppm_table) - kfree(rdev->pm.dpm.dyn_state.ppm_table); - if (rdev->pm.dpm.dyn_state.cac_tdp_table) - kfree(rdev->pm.dpm.dyn_state.cac_tdp_table); - if (rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries) - kfree(rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries); - if (rdev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries) - kfree(rdev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries); - if (rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries) - kfree(rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries); - if (rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries) - kfree(rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries); + struct radeon_dpm_dynamic_state *dyn_state = &rdev->pm.dpm.dyn_state; + + kfree(dyn_state->vddc_dependency_on_sclk.entries); + kfree(dyn_state->vddci_dependency_on_mclk.entries); + kfree(dyn_state->vddc_dependency_on_mclk.entries); + kfree(dyn_state->mvdd_dependency_on_mclk.entries); + kfree(dyn_state->cac_leakage_table.entries); + kfree(dyn_state->phase_shedding_limits_table.entries); + kfree(dyn_state->ppm_table); + kfree(dyn_state->cac_tdp_table); + kfree(dyn_state->vce_clock_voltage_dependency_table.entries); + kfree(dyn_state->uvd_clock_voltage_dependency_table.entries); + kfree(dyn_state->samu_clock_voltage_dependency_table.entries); + kfree(dyn_state->acp_clock_voltage_dependency_table.entries); } enum radeon_pcie_gen r600_get_pcie_gen_support(struct radeon_device *rdev, From 8c5c6fad61f9540a977e5731a8ae3bd8ba9083cb Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 4 Sep 2013 12:31:36 +0300 Subject: [PATCH 034/350] drm/radeon: signedness bug in kv_dpm.c The problem here is that "unsigned i" is always greater than or equal to zero. These loops mostly have a second check for "(i == 0)" so only the last two are actually buggy. The rest is just cleanup. Bug 1: kv_force_dpm_highest() doesn't have an "(i == 0)" check so it's a potential forever loop. Bug 2: In kv_get_sleep_divider_id_from_clock() there is a typo and the test is reversed "<=" vs ">" so we never enter the loop. That means normally we return KV_MAX_DEEPSLEEP_DIVIDER_ID (5). The return value from here is saved in ->DeepSleepDivId and I wasn't able to determine how that is used. This is a static checker fix and I have not tested it. Signed-off-by: Dan Carpenter Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/kv_dpm.c | 32 +++++++++++++------------------- 1 file changed, 13 insertions(+), 19 deletions(-) diff --git a/drivers/gpu/drm/radeon/kv_dpm.c b/drivers/gpu/drm/radeon/kv_dpm.c index ecd60809db4e..c499dafd28fa 100644 --- a/drivers/gpu/drm/radeon/kv_dpm.c +++ b/drivers/gpu/drm/radeon/kv_dpm.c @@ -667,9 +667,8 @@ static int kv_program_bootup_state(struct radeon_device *rdev) &rdev->pm.dpm.dyn_state.vddc_dependency_on_sclk; if (table && table->count) { - for (i = pi->graphics_dpm_level_count - 1; i >= 0; i--) { - if ((table->entries[i].clk == pi->boot_pl.sclk) || - (i == 0)) + for (i = pi->graphics_dpm_level_count - 1; i > 0; i--) { + if (table->entries[i].clk == pi->boot_pl.sclk) break; } @@ -682,9 +681,8 @@ static int kv_program_bootup_state(struct radeon_device *rdev) if (table->num_max_dpm_entries == 0) return -EINVAL; - for (i = pi->graphics_dpm_level_count - 1; i >= 0; i--) { - if ((table->entries[i].sclk_frequency == pi->boot_pl.sclk) || - (i == 0)) + for (i = pi->graphics_dpm_level_count - 1; i > 0; i--) { + if (table->entries[i].sclk_frequency == pi->boot_pl.sclk) break; } @@ -1588,13 +1586,11 @@ static void kv_set_valid_clock_range(struct radeon_device *rdev, } } - for (i = pi->graphics_dpm_level_count - 1; i >= 0; i--) { - if ((table->entries[i].clk <= new_ps->levels[new_ps->num_levels -1].sclk) || - (i == 0)) { - pi->highest_valid = i; + for (i = pi->graphics_dpm_level_count - 1; i > 0; i--) { + if (table->entries[i].clk <= new_ps->levels[new_ps->num_levels - 1].sclk) break; - } } + pi->highest_valid = i; if (pi->lowest_valid > pi->highest_valid) { if ((new_ps->levels[0].sclk - table->entries[pi->highest_valid].clk) > @@ -1615,14 +1611,12 @@ static void kv_set_valid_clock_range(struct radeon_device *rdev, } } - for (i = pi->graphics_dpm_level_count - 1; i >= 0; i--) { + for (i = pi->graphics_dpm_level_count - 1; i > 0; i--) { if (table->entries[i].sclk_frequency <= - new_ps->levels[new_ps->num_levels - 1].sclk || - i == 0) { - pi->highest_valid = i; + new_ps->levels[new_ps->num_levels - 1].sclk) break; - } } + pi->highest_valid = i; if (pi->lowest_valid > pi->highest_valid) { if ((new_ps->levels[0].sclk - @@ -1871,7 +1865,7 @@ static int kv_force_dpm_highest(struct radeon_device *rdev) if (ret) return ret; - for (i = SMU7_MAX_LEVELS_GRAPHICS - 1; i >= 0; i--) { + for (i = SMU7_MAX_LEVELS_GRAPHICS - 1; i > 0; i--) { if (enable_mask & (1 << i)) break; } @@ -1911,9 +1905,9 @@ static u8 kv_get_sleep_divider_id_from_clock(struct radeon_device *rdev, if (!pi->caps_sclk_ds) return 0; - for (i = KV_MAX_DEEPSLEEP_DIVIDER_ID; i <= 0; i--) { + for (i = KV_MAX_DEEPSLEEP_DIVIDER_ID; i > 0; i--) { temp = sclk / sumo_get_sleep_divider_from_id(i); - if ((temp >= min) || (i == 0)) + if (temp >= min) break; } From 136de91ea760b55bd52b707c1443f121e006962e Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 4 Sep 2013 12:01:28 -0400 Subject: [PATCH 035/350] drm/radeon: dpm updates for KV This updates dpm support for KV asics. Notably there are some changes in acp handling and forcing performance levels. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/kv_dpm.c | 103 +++++++++++++++++++++++++++----- 1 file changed, 88 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/radeon/kv_dpm.c b/drivers/gpu/drm/radeon/kv_dpm.c index c499dafd28fa..c87d1945a6f3 100644 --- a/drivers/gpu/drm/radeon/kv_dpm.c +++ b/drivers/gpu/drm/radeon/kv_dpm.c @@ -40,6 +40,7 @@ static int kv_calculate_dpm_settings(struct radeon_device *rdev); static void kv_enable_new_levels(struct radeon_device *rdev); static void kv_program_nbps_index_settings(struct radeon_device *rdev, struct radeon_ps *new_rps); +static int kv_set_enabled_level(struct radeon_device *rdev, u32 level); static int kv_set_enabled_levels(struct radeon_device *rdev); static int kv_force_dpm_highest(struct radeon_device *rdev); static int kv_force_dpm_lowest(struct radeon_device *rdev); @@ -519,7 +520,7 @@ static int kv_set_dpm_boot_state(struct radeon_device *rdev) static void kv_program_vc(struct radeon_device *rdev) { - WREG32_SMC(CG_FTV_0, 0x3FFFC000); + WREG32_SMC(CG_FTV_0, 0x3FFFC100); } static void kv_clear_vc(struct radeon_device *rdev) @@ -638,7 +639,10 @@ static int kv_force_lowest_valid(struct radeon_device *rdev) static int kv_unforce_levels(struct radeon_device *rdev) { - return kv_notify_message_to_smu(rdev, PPSMC_MSG_NoForcedLevel); + if (rdev->family == CHIP_KABINI) + return kv_notify_message_to_smu(rdev, PPSMC_MSG_NoForcedLevel); + else + return kv_set_enabled_levels(rdev); } static int kv_update_sclk_t(struct radeon_device *rdev) @@ -1076,6 +1080,13 @@ static int kv_enable_ulv(struct radeon_device *rdev, bool enable) PPSMC_MSG_EnableULV : PPSMC_MSG_DisableULV); } +static void kv_reset_acp_boot_level(struct radeon_device *rdev) +{ + struct kv_power_info *pi = kv_get_pi(rdev); + + pi->acp_boot_level = 0xff; +} + static void kv_update_current_ps(struct radeon_device *rdev, struct radeon_ps *rps) { @@ -1190,6 +1201,8 @@ int kv_dpm_enable(struct radeon_device *rdev) return ret; } + kv_reset_acp_boot_level(rdev); + if (rdev->irq.installed && r600_is_internal_thermal_sensor(rdev->pm.int_thermal_type)) { ret = kv_set_thermal_temperature_range(rdev, R600_TEMP_RANGE_MIN, R600_TEMP_RANGE_MAX); @@ -1448,6 +1461,39 @@ static int kv_update_samu_dpm(struct radeon_device *rdev, bool gate) return kv_enable_samu_dpm(rdev, !gate); } +static u8 kv_get_acp_boot_level(struct radeon_device *rdev) +{ + u8 i; + struct radeon_clock_voltage_dependency_table *table = + &rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table; + + for (i = 0; i < table->count; i++) { + if (table->entries[i].clk >= 0) /* XXX */ + break; + } + + if (i >= table->count) + i = table->count - 1; + + return i; +} + +static void kv_update_acp_boot_level(struct radeon_device *rdev) +{ + struct kv_power_info *pi = kv_get_pi(rdev); + u8 acp_boot_level; + + if (!pi->caps_stable_p_state) { + acp_boot_level = kv_get_acp_boot_level(rdev); + if (acp_boot_level != pi->acp_boot_level) { + pi->acp_boot_level = acp_boot_level; + kv_send_msg_to_smc_with_parameter(rdev, + PPSMC_MSG_ACPDPM_SetEnabledMask, + (1 << pi->acp_boot_level)); + } + } +} + static int kv_update_acp_dpm(struct radeon_device *rdev, bool gate) { struct kv_power_info *pi = kv_get_pi(rdev); @@ -1459,7 +1505,7 @@ static int kv_update_acp_dpm(struct radeon_device *rdev, bool gate) if (pi->caps_stable_p_state) pi->acp_boot_level = table->count - 1; else - pi->acp_boot_level = 0; + pi->acp_boot_level = kv_get_acp_boot_level(rdev); ret = kv_copy_bytes_to_smc(rdev, pi->dpm_table_start + @@ -1769,6 +1815,7 @@ int kv_dpm_set_power_state(struct radeon_device *rdev) return ret; } #endif + kv_update_acp_boot_level(rdev); kv_update_sclk_t(rdev); kv_enable_nb_dpm(rdev); } @@ -1800,12 +1847,23 @@ void kv_dpm_setup_asic(struct radeon_device *rdev) void kv_dpm_reset_asic(struct radeon_device *rdev) { - kv_force_lowest_valid(rdev); - kv_init_graphics_levels(rdev); - kv_program_bootup_state(rdev); - kv_upload_dpm_settings(rdev); - kv_force_lowest_valid(rdev); - kv_unforce_levels(rdev); + struct kv_power_info *pi = kv_get_pi(rdev); + + if (rdev->family == CHIP_KABINI) { + kv_force_lowest_valid(rdev); + kv_init_graphics_levels(rdev); + kv_program_bootup_state(rdev); + kv_upload_dpm_settings(rdev); + kv_force_lowest_valid(rdev); + kv_unforce_levels(rdev); + } else { + kv_init_graphics_levels(rdev); + kv_program_bootup_state(rdev); + kv_freeze_sclk_dpm(rdev, true); + kv_upload_dpm_settings(rdev); + kv_freeze_sclk_dpm(rdev, false); + kv_set_enabled_level(rdev, pi->graphics_boot_level); + } } //XXX use sumo_dpm_display_configuration_changed @@ -1870,7 +1928,10 @@ static int kv_force_dpm_highest(struct radeon_device *rdev) break; } - return kv_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_DPM_ForceState, i); + if (rdev->family == CHIP_KABINI) + return kv_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_DPM_ForceState, i); + else + return kv_set_enabled_level(rdev, i); } static int kv_force_dpm_lowest(struct radeon_device *rdev) @@ -1887,7 +1948,10 @@ static int kv_force_dpm_lowest(struct radeon_device *rdev) break; } - return kv_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_DPM_ForceState, i); + if (rdev->family == CHIP_KABINI) + return kv_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_DPM_ForceState, i); + else + return kv_set_enabled_level(rdev, i); } static u8 kv_get_sleep_divider_id_from_clock(struct radeon_device *rdev, @@ -2033,12 +2097,12 @@ static void kv_apply_state_adjust_rules(struct radeon_device *rdev, ps->dpmx_nb_ps_lo = 0x1; ps->dpmx_nb_ps_hi = 0x0; } else { - ps->dpm0_pg_nb_ps_lo = 0x1; + ps->dpm0_pg_nb_ps_lo = 0x3; ps->dpm0_pg_nb_ps_hi = 0x0; - ps->dpmx_nb_ps_lo = 0x2; - ps->dpmx_nb_ps_hi = 0x1; + ps->dpmx_nb_ps_lo = 0x3; + ps->dpmx_nb_ps_hi = 0x0; - if (pi->sys_info.nb_dpm_enable && pi->battery_state) { + if (pi->sys_info.nb_dpm_enable) { force_high = (mclk >= pi->sys_info.nbp_memory_clock[3]) || pi->video_start || (rdev->pm.dpm.new_active_crtc_count >= 3) || pi->disable_nb_ps3_in_battery; @@ -2204,6 +2268,15 @@ static void kv_enable_new_levels(struct radeon_device *rdev) } } +static int kv_set_enabled_level(struct radeon_device *rdev, u32 level) +{ + u32 new_mask = (1 << level); + + return kv_send_msg_to_smc_with_parameter(rdev, + PPSMC_MSG_SCLKDPM_SetEnabledMask, + new_mask); +} + static int kv_set_enabled_levels(struct radeon_device *rdev) { struct kv_power_info *pi = kv_get_pi(rdev); From fe78118c4603ab91b88907eaabe4a1ca03a9f220 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 3 Sep 2013 18:19:42 -0400 Subject: [PATCH 036/350] drm/radeon: protect concurrent smc register access with a spinlock smc registers are access indirectly via the main mmio aperture, so there may be problems with concurrent access. This adds a spinlock to protect access to this register space. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/ci_smc.c | 39 +++++++++++++++-------- drivers/gpu/drm/radeon/radeon.h | 9 ++++++ drivers/gpu/drm/radeon/radeon_device.c | 1 + drivers/gpu/drm/radeon/rv770_smc.c | 44 ++++++++++++++++---------- drivers/gpu/drm/radeon/rv770_smc.h | 2 -- drivers/gpu/drm/radeon/si_smc.c | 43 ++++++++++++++++--------- 6 files changed, 91 insertions(+), 47 deletions(-) diff --git a/drivers/gpu/drm/radeon/ci_smc.c b/drivers/gpu/drm/radeon/ci_smc.c index 53b43dd3cf1e..252e10a41cf5 100644 --- a/drivers/gpu/drm/radeon/ci_smc.c +++ b/drivers/gpu/drm/radeon/ci_smc.c @@ -47,10 +47,11 @@ int ci_copy_bytes_to_smc(struct radeon_device *rdev, u32 smc_start_address, const u8 *src, u32 byte_count, u32 limit) { + unsigned long flags; u32 data, original_data; u32 addr; u32 extra_shift; - int ret; + int ret = 0; if (smc_start_address & 3) return -EINVAL; @@ -59,13 +60,14 @@ int ci_copy_bytes_to_smc(struct radeon_device *rdev, addr = smc_start_address; + spin_lock_irqsave(&rdev->smc_idx_lock, flags); while (byte_count >= 4) { /* SMC address space is BE */ data = (src[0] << 24) | (src[1] << 16) | (src[2] << 8) | src[3]; ret = ci_set_smc_sram_address(rdev, addr, limit); if (ret) - return ret; + goto done; WREG32(SMC_IND_DATA_0, data); @@ -80,7 +82,7 @@ int ci_copy_bytes_to_smc(struct radeon_device *rdev, ret = ci_set_smc_sram_address(rdev, addr, limit); if (ret) - return ret; + goto done; original_data = RREG32(SMC_IND_DATA_0); @@ -97,11 +99,15 @@ int ci_copy_bytes_to_smc(struct radeon_device *rdev, ret = ci_set_smc_sram_address(rdev, addr, limit); if (ret) - return ret; + goto done; WREG32(SMC_IND_DATA_0, data); } - return 0; + +done: + spin_unlock_irqrestore(&rdev->smc_idx_lock, flags); + + return ret; } void ci_start_smc(struct radeon_device *rdev) @@ -197,6 +203,7 @@ PPSMC_Result ci_wait_for_smc_inactive(struct radeon_device *rdev) int ci_load_smc_ucode(struct radeon_device *rdev, u32 limit) { + unsigned long flags; u32 ucode_start_address; u32 ucode_size; const u8 *src; @@ -219,6 +226,7 @@ int ci_load_smc_ucode(struct radeon_device *rdev, u32 limit) return -EINVAL; src = (const u8 *)rdev->smc_fw->data; + spin_lock_irqsave(&rdev->smc_idx_lock, flags); WREG32(SMC_IND_INDEX_0, ucode_start_address); WREG32_P(SMC_IND_ACCESS_CNTL, AUTO_INCREMENT_IND_0, ~AUTO_INCREMENT_IND_0); while (ucode_size >= 4) { @@ -231,6 +239,7 @@ int ci_load_smc_ucode(struct radeon_device *rdev, u32 limit) ucode_size -= 4; } WREG32_P(SMC_IND_ACCESS_CNTL, 0, ~AUTO_INCREMENT_IND_0); + spin_unlock_irqrestore(&rdev->smc_idx_lock, flags); return 0; } @@ -238,25 +247,29 @@ int ci_load_smc_ucode(struct radeon_device *rdev, u32 limit) int ci_read_smc_sram_dword(struct radeon_device *rdev, u32 smc_address, u32 *value, u32 limit) { + unsigned long flags; int ret; + spin_lock_irqsave(&rdev->smc_idx_lock, flags); ret = ci_set_smc_sram_address(rdev, smc_address, limit); - if (ret) - return ret; + if (ret == 0) + *value = RREG32(SMC_IND_DATA_0); + spin_unlock_irqrestore(&rdev->smc_idx_lock, flags); - *value = RREG32(SMC_IND_DATA_0); - return 0; + return ret; } int ci_write_smc_sram_dword(struct radeon_device *rdev, u32 smc_address, u32 value, u32 limit) { + unsigned long flags; int ret; + spin_lock_irqsave(&rdev->smc_idx_lock, flags); ret = ci_set_smc_sram_address(rdev, smc_address, limit); - if (ret) - return ret; + if (ret == 0) + WREG32(SMC_IND_DATA_0, value); + spin_unlock_irqrestore(&rdev->smc_idx_lock, flags); - WREG32(SMC_IND_DATA_0, value); - return 0; + return ret; } diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index ff8b564ce2b2..6d6d099d9cb8 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -2110,6 +2110,8 @@ struct radeon_device { resource_size_t rmmio_size; /* protects concurrent MM_INDEX/DATA based register access */ spinlock_t mmio_idx_lock; + /* protects concurrent SMC based register access */ + spinlock_t smc_idx_lock; void __iomem *rmmio; radeon_rreg_t mc_rreg; radeon_wreg_t mc_wreg; @@ -2292,17 +2294,24 @@ static inline void rv370_pcie_wreg(struct radeon_device *rdev, uint32_t reg, uin static inline u32 tn_smc_rreg(struct radeon_device *rdev, u32 reg) { + unsigned long flags; u32 r; + spin_lock_irqsave(&rdev->smc_idx_lock, flags); WREG32(TN_SMC_IND_INDEX_0, (reg)); r = RREG32(TN_SMC_IND_DATA_0); + spin_unlock_irqrestore(&rdev->smc_idx_lock, flags); return r; } static inline void tn_smc_wreg(struct radeon_device *rdev, u32 reg, u32 v) { + unsigned long flags; + + spin_lock_irqsave(&rdev->smc_idx_lock, flags); WREG32(TN_SMC_IND_INDEX_0, (reg)); WREG32(TN_SMC_IND_DATA_0, (v)); + spin_unlock_irqrestore(&rdev->smc_idx_lock, flags); } static inline u32 r600_rcu_rreg(struct radeon_device *rdev, u32 reg) diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index 16cb8792b1e6..b9032144c089 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -1249,6 +1249,7 @@ int radeon_device_init(struct radeon_device *rdev, /* Registers mapping */ /* TODO: block userspace mapping of io register */ spin_lock_init(&rdev->mmio_idx_lock); + spin_lock_init(&rdev->smc_idx_lock); if (rdev->family >= CHIP_BONAIRE) { rdev->rmmio_base = pci_resource_start(rdev->pdev, 5); rdev->rmmio_size = pci_resource_len(rdev->pdev, 5); diff --git a/drivers/gpu/drm/radeon/rv770_smc.c b/drivers/gpu/drm/radeon/rv770_smc.c index ab95da570215..b2a224407365 100644 --- a/drivers/gpu/drm/radeon/rv770_smc.c +++ b/drivers/gpu/drm/radeon/rv770_smc.c @@ -274,8 +274,8 @@ static const u8 cayman_smc_int_vectors[] = 0x08, 0x72, 0x08, 0x72 }; -int rv770_set_smc_sram_address(struct radeon_device *rdev, - u16 smc_address, u16 limit) +static int rv770_set_smc_sram_address(struct radeon_device *rdev, + u16 smc_address, u16 limit) { u32 addr; @@ -296,9 +296,10 @@ int rv770_copy_bytes_to_smc(struct radeon_device *rdev, u16 smc_start_address, const u8 *src, u16 byte_count, u16 limit) { + unsigned long flags; u32 data, original_data, extra_shift; u16 addr; - int ret; + int ret = 0; if (smc_start_address & 3) return -EINVAL; @@ -307,13 +308,14 @@ int rv770_copy_bytes_to_smc(struct radeon_device *rdev, addr = smc_start_address; + spin_lock_irqsave(&rdev->smc_idx_lock, flags); while (byte_count >= 4) { /* SMC address space is BE */ data = (src[0] << 24) | (src[1] << 16) | (src[2] << 8) | src[3]; ret = rv770_set_smc_sram_address(rdev, addr, limit); if (ret) - return ret; + goto done; WREG32(SMC_SRAM_DATA, data); @@ -328,7 +330,7 @@ int rv770_copy_bytes_to_smc(struct radeon_device *rdev, ret = rv770_set_smc_sram_address(rdev, addr, limit); if (ret) - return ret; + goto done; original_data = RREG32(SMC_SRAM_DATA); @@ -346,12 +348,15 @@ int rv770_copy_bytes_to_smc(struct radeon_device *rdev, ret = rv770_set_smc_sram_address(rdev, addr, limit); if (ret) - return ret; + goto done; WREG32(SMC_SRAM_DATA, data); } - return 0; +done: + spin_unlock_irqrestore(&rdev->smc_idx_lock, flags); + + return ret; } static int rv770_program_interrupt_vectors(struct radeon_device *rdev, @@ -461,12 +466,15 @@ PPSMC_Result rv770_wait_for_smc_inactive(struct radeon_device *rdev) static void rv770_clear_smc_sram(struct radeon_device *rdev, u16 limit) { + unsigned long flags; u16 i; + spin_lock_irqsave(&rdev->smc_idx_lock, flags); for (i = 0; i < limit; i += 4) { rv770_set_smc_sram_address(rdev, i, limit); WREG32(SMC_SRAM_DATA, 0); } + spin_unlock_irqrestore(&rdev->smc_idx_lock, flags); } int rv770_load_smc_ucode(struct radeon_device *rdev, @@ -595,27 +603,29 @@ int rv770_load_smc_ucode(struct radeon_device *rdev, int rv770_read_smc_sram_dword(struct radeon_device *rdev, u16 smc_address, u32 *value, u16 limit) { + unsigned long flags; int ret; + spin_lock_irqsave(&rdev->smc_idx_lock, flags); ret = rv770_set_smc_sram_address(rdev, smc_address, limit); - if (ret) - return ret; + if (ret == 0) + *value = RREG32(SMC_SRAM_DATA); + spin_unlock_irqrestore(&rdev->smc_idx_lock, flags); - *value = RREG32(SMC_SRAM_DATA); - - return 0; + return ret; } int rv770_write_smc_sram_dword(struct radeon_device *rdev, u16 smc_address, u32 value, u16 limit) { + unsigned long flags; int ret; + spin_lock_irqsave(&rdev->smc_idx_lock, flags); ret = rv770_set_smc_sram_address(rdev, smc_address, limit); - if (ret) - return ret; + if (ret == 0) + WREG32(SMC_SRAM_DATA, value); + spin_unlock_irqrestore(&rdev->smc_idx_lock, flags); - WREG32(SMC_SRAM_DATA, value); - - return 0; + return ret; } diff --git a/drivers/gpu/drm/radeon/rv770_smc.h b/drivers/gpu/drm/radeon/rv770_smc.h index f78d92a4b325..3b2c963c4880 100644 --- a/drivers/gpu/drm/radeon/rv770_smc.h +++ b/drivers/gpu/drm/radeon/rv770_smc.h @@ -187,8 +187,6 @@ typedef struct RV770_SMC_STATETABLE RV770_SMC_STATETABLE; #define RV770_SMC_SOFT_REGISTER_uvd_enabled 0x9C #define RV770_SMC_SOFT_REGISTER_is_asic_lombok 0xA0 -int rv770_set_smc_sram_address(struct radeon_device *rdev, - u16 smc_address, u16 limit); int rv770_copy_bytes_to_smc(struct radeon_device *rdev, u16 smc_start_address, const u8 *src, u16 byte_count, u16 limit); diff --git a/drivers/gpu/drm/radeon/si_smc.c b/drivers/gpu/drm/radeon/si_smc.c index 5f524c0a541e..d422a1cbf727 100644 --- a/drivers/gpu/drm/radeon/si_smc.c +++ b/drivers/gpu/drm/radeon/si_smc.c @@ -29,8 +29,8 @@ #include "ppsmc.h" #include "radeon_ucode.h" -int si_set_smc_sram_address(struct radeon_device *rdev, - u32 smc_address, u32 limit) +static int si_set_smc_sram_address(struct radeon_device *rdev, + u32 smc_address, u32 limit) { if (smc_address & 3) return -EINVAL; @@ -47,7 +47,8 @@ int si_copy_bytes_to_smc(struct radeon_device *rdev, u32 smc_start_address, const u8 *src, u32 byte_count, u32 limit) { - int ret; + unsigned long flags; + int ret = 0; u32 data, original_data, addr, extra_shift; if (smc_start_address & 3) @@ -57,13 +58,14 @@ int si_copy_bytes_to_smc(struct radeon_device *rdev, addr = smc_start_address; + spin_lock_irqsave(&rdev->smc_idx_lock, flags); while (byte_count >= 4) { /* SMC address space is BE */ data = (src[0] << 24) | (src[1] << 16) | (src[2] << 8) | src[3]; ret = si_set_smc_sram_address(rdev, addr, limit); if (ret) - return ret; + goto done; WREG32(SMC_IND_DATA_0, data); @@ -78,7 +80,7 @@ int si_copy_bytes_to_smc(struct radeon_device *rdev, ret = si_set_smc_sram_address(rdev, addr, limit); if (ret) - return ret; + goto done; original_data = RREG32(SMC_IND_DATA_0); @@ -96,11 +98,15 @@ int si_copy_bytes_to_smc(struct radeon_device *rdev, ret = si_set_smc_sram_address(rdev, addr, limit); if (ret) - return ret; + goto done; WREG32(SMC_IND_DATA_0, data); } - return 0; + +done: + spin_unlock_irqrestore(&rdev->smc_idx_lock, flags); + + return ret; } void si_start_smc(struct radeon_device *rdev) @@ -203,6 +209,7 @@ PPSMC_Result si_wait_for_smc_inactive(struct radeon_device *rdev) int si_load_smc_ucode(struct radeon_device *rdev, u32 limit) { + unsigned long flags; u32 ucode_start_address; u32 ucode_size; const u8 *src; @@ -241,6 +248,7 @@ int si_load_smc_ucode(struct radeon_device *rdev, u32 limit) return -EINVAL; src = (const u8 *)rdev->smc_fw->data; + spin_lock_irqsave(&rdev->smc_idx_lock, flags); WREG32(SMC_IND_INDEX_0, ucode_start_address); WREG32_P(SMC_IND_ACCESS_CNTL, AUTO_INCREMENT_IND_0, ~AUTO_INCREMENT_IND_0); while (ucode_size >= 4) { @@ -253,6 +261,7 @@ int si_load_smc_ucode(struct radeon_device *rdev, u32 limit) ucode_size -= 4; } WREG32_P(SMC_IND_ACCESS_CNTL, 0, ~AUTO_INCREMENT_IND_0); + spin_unlock_irqrestore(&rdev->smc_idx_lock, flags); return 0; } @@ -260,25 +269,29 @@ int si_load_smc_ucode(struct radeon_device *rdev, u32 limit) int si_read_smc_sram_dword(struct radeon_device *rdev, u32 smc_address, u32 *value, u32 limit) { + unsigned long flags; int ret; + spin_lock_irqsave(&rdev->smc_idx_lock, flags); ret = si_set_smc_sram_address(rdev, smc_address, limit); - if (ret) - return ret; + if (ret == 0) + *value = RREG32(SMC_IND_DATA_0); + spin_unlock_irqrestore(&rdev->smc_idx_lock, flags); - *value = RREG32(SMC_IND_DATA_0); - return 0; + return ret; } int si_write_smc_sram_dword(struct radeon_device *rdev, u32 smc_address, u32 value, u32 limit) { + unsigned long flags; int ret; + spin_lock_irqsave(&rdev->smc_idx_lock, flags); ret = si_set_smc_sram_address(rdev, smc_address, limit); - if (ret) - return ret; + if (ret == 0) + WREG32(SMC_IND_DATA_0, value); + spin_unlock_irqrestore(&rdev->smc_idx_lock, flags); - WREG32(SMC_IND_DATA_0, value); - return 0; + return ret; } From 0a5b7b0bd97a212f5d8d28c5011b04a45dfb006e Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 3 Sep 2013 19:00:09 -0400 Subject: [PATCH 037/350] drm/radeon: add spinlocks for indirect register accesss This adds spinlocks to protect access to other indirect register apertures. These indirect spaces are used pretty infrequently and we haven't had an reported problems, but better safe than sorry. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/cik.c | 7 +++ drivers/gpu/drm/radeon/dce6_afmt.c | 8 +++ drivers/gpu/drm/radeon/r100.c | 7 +++ drivers/gpu/drm/radeon/r420.c | 7 +++ drivers/gpu/drm/radeon/r600.c | 14 ++++++ drivers/gpu/drm/radeon/radeon.h | 69 ++++++++++++++++++++++++++ drivers/gpu/drm/radeon/radeon_device.c | 10 ++++ drivers/gpu/drm/radeon/rs400.c | 7 +++ drivers/gpu/drm/radeon/rs600.c | 12 ++++- drivers/gpu/drm/radeon/rs690.c | 7 +++ drivers/gpu/drm/radeon/rv515.c | 8 +++ 11 files changed, 155 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c index 07aa13deaa15..e521d4c6676f 100644 --- a/drivers/gpu/drm/radeon/cik.c +++ b/drivers/gpu/drm/radeon/cik.c @@ -122,20 +122,27 @@ int kv_get_temp(struct radeon_device *rdev) */ u32 cik_pciep_rreg(struct radeon_device *rdev, u32 reg) { + unsigned long flags; u32 r; + spin_lock_irqsave(&rdev->pciep_idx_lock, flags); WREG32(PCIE_INDEX, reg); (void)RREG32(PCIE_INDEX); r = RREG32(PCIE_DATA); + spin_unlock_irqrestore(&rdev->pciep_idx_lock, flags); return r; } void cik_pciep_wreg(struct radeon_device *rdev, u32 reg, u32 v) { + unsigned long flags; + + spin_lock_irqsave(&rdev->pciep_idx_lock, flags); WREG32(PCIE_INDEX, reg); (void)RREG32(PCIE_INDEX); WREG32(PCIE_DATA, v); (void)RREG32(PCIE_DATA); + spin_unlock_irqrestore(&rdev->pciep_idx_lock, flags); } static const u32 spectre_rlc_save_restore_register_list[] = diff --git a/drivers/gpu/drm/radeon/dce6_afmt.c b/drivers/gpu/drm/radeon/dce6_afmt.c index 3853dda797dd..85a69d2ea3d2 100644 --- a/drivers/gpu/drm/radeon/dce6_afmt.c +++ b/drivers/gpu/drm/radeon/dce6_afmt.c @@ -28,22 +28,30 @@ static u32 dce6_endpoint_rreg(struct radeon_device *rdev, u32 block_offset, u32 reg) { + unsigned long flags; u32 r; + spin_lock_irqsave(&rdev->end_idx_lock, flags); WREG32(AZ_F0_CODEC_ENDPOINT_INDEX + block_offset, reg); r = RREG32(AZ_F0_CODEC_ENDPOINT_DATA + block_offset); + spin_unlock_irqrestore(&rdev->end_idx_lock, flags); + return r; } static void dce6_endpoint_wreg(struct radeon_device *rdev, u32 block_offset, u32 reg, u32 v) { + unsigned long flags; + + spin_lock_irqsave(&rdev->end_idx_lock, flags); if (ASIC_IS_DCE8(rdev)) WREG32(AZ_F0_CODEC_ENDPOINT_INDEX + block_offset, reg); else WREG32(AZ_F0_CODEC_ENDPOINT_INDEX + block_offset, AZ_ENDPOINT_REG_WRITE_EN | AZ_ENDPOINT_REG_INDEX(reg)); WREG32(AZ_F0_CODEC_ENDPOINT_DATA + block_offset, v); + spin_unlock_irqrestore(&rdev->end_idx_lock, flags); } #define RREG32_ENDPOINT(block, reg) dce6_endpoint_rreg(rdev, (block), (reg)) diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index 9fc61dd68bc0..24175717307b 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -2853,21 +2853,28 @@ static void r100_pll_errata_after_data(struct radeon_device *rdev) uint32_t r100_pll_rreg(struct radeon_device *rdev, uint32_t reg) { + unsigned long flags; uint32_t data; + spin_lock_irqsave(&rdev->pll_idx_lock, flags); WREG8(RADEON_CLOCK_CNTL_INDEX, reg & 0x3f); r100_pll_errata_after_index(rdev); data = RREG32(RADEON_CLOCK_CNTL_DATA); r100_pll_errata_after_data(rdev); + spin_unlock_irqrestore(&rdev->pll_idx_lock, flags); return data; } void r100_pll_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v) { + unsigned long flags; + + spin_lock_irqsave(&rdev->pll_idx_lock, flags); WREG8(RADEON_CLOCK_CNTL_INDEX, ((reg & 0x3f) | RADEON_PLL_WR_EN)); r100_pll_errata_after_index(rdev); WREG32(RADEON_CLOCK_CNTL_DATA, v); r100_pll_errata_after_data(rdev); + spin_unlock_irqrestore(&rdev->pll_idx_lock, flags); } static void r100_set_safe_registers(struct radeon_device *rdev) diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c index 4e796ecf9ea4..6edf2b3a52b4 100644 --- a/drivers/gpu/drm/radeon/r420.c +++ b/drivers/gpu/drm/radeon/r420.c @@ -160,18 +160,25 @@ void r420_pipes_init(struct radeon_device *rdev) u32 r420_mc_rreg(struct radeon_device *rdev, u32 reg) { + unsigned long flags; u32 r; + spin_lock_irqsave(&rdev->mc_idx_lock, flags); WREG32(R_0001F8_MC_IND_INDEX, S_0001F8_MC_IND_ADDR(reg)); r = RREG32(R_0001FC_MC_IND_DATA); + spin_unlock_irqrestore(&rdev->mc_idx_lock, flags); return r; } void r420_mc_wreg(struct radeon_device *rdev, u32 reg, u32 v) { + unsigned long flags; + + spin_lock_irqsave(&rdev->mc_idx_lock, flags); WREG32(R_0001F8_MC_IND_INDEX, S_0001F8_MC_IND_ADDR(reg) | S_0001F8_MC_IND_WR_EN(1)); WREG32(R_0001FC_MC_IND_DATA, v); + spin_unlock_irqrestore(&rdev->mc_idx_lock, flags); } static void r420_debugfs(struct radeon_device *rdev) diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index ea4d3734e6d9..11cd99e3cbb5 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -1045,20 +1045,27 @@ int r600_mc_wait_for_idle(struct radeon_device *rdev) uint32_t rs780_mc_rreg(struct radeon_device *rdev, uint32_t reg) { + unsigned long flags; uint32_t r; + spin_lock_irqsave(&rdev->mc_idx_lock, flags); WREG32(R_0028F8_MC_INDEX, S_0028F8_MC_IND_ADDR(reg)); r = RREG32(R_0028FC_MC_DATA); WREG32(R_0028F8_MC_INDEX, ~C_0028F8_MC_IND_ADDR); + spin_unlock_irqrestore(&rdev->mc_idx_lock, flags); return r; } void rs780_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v) { + unsigned long flags; + + spin_lock_irqsave(&rdev->mc_idx_lock, flags); WREG32(R_0028F8_MC_INDEX, S_0028F8_MC_IND_ADDR(reg) | S_0028F8_MC_IND_WR_EN(1)); WREG32(R_0028FC_MC_DATA, v); WREG32(R_0028F8_MC_INDEX, 0x7F); + spin_unlock_irqrestore(&rdev->mc_idx_lock, flags); } static void r600_mc_program(struct radeon_device *rdev) @@ -2092,20 +2099,27 @@ static void r600_gpu_init(struct radeon_device *rdev) */ u32 r600_pciep_rreg(struct radeon_device *rdev, u32 reg) { + unsigned long flags; u32 r; + spin_lock_irqsave(&rdev->pciep_idx_lock, flags); WREG32(PCIE_PORT_INDEX, ((reg) & 0xff)); (void)RREG32(PCIE_PORT_INDEX); r = RREG32(PCIE_PORT_DATA); + spin_unlock_irqrestore(&rdev->pciep_idx_lock, flags); return r; } void r600_pciep_wreg(struct radeon_device *rdev, u32 reg, u32 v) { + unsigned long flags; + + spin_lock_irqsave(&rdev->pciep_idx_lock, flags); WREG32(PCIE_PORT_INDEX, ((reg) & 0xff)); (void)RREG32(PCIE_PORT_INDEX); WREG32(PCIE_PORT_DATA, (v)); (void)RREG32(PCIE_PORT_DATA); + spin_unlock_irqrestore(&rdev->pciep_idx_lock, flags); } /* diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 6d6d099d9cb8..1cfcb1b27aaa 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -2112,6 +2112,26 @@ struct radeon_device { spinlock_t mmio_idx_lock; /* protects concurrent SMC based register access */ spinlock_t smc_idx_lock; + /* protects concurrent PLL register access */ + spinlock_t pll_idx_lock; + /* protects concurrent MC register access */ + spinlock_t mc_idx_lock; + /* protects concurrent PCIE register access */ + spinlock_t pcie_idx_lock; + /* protects concurrent PCIE_PORT register access */ + spinlock_t pciep_idx_lock; + /* protects concurrent PIF register access */ + spinlock_t pif_idx_lock; + /* protects concurrent CG register access */ + spinlock_t cg_idx_lock; + /* protects concurrent UVD register access */ + spinlock_t uvd_idx_lock; + /* protects concurrent RCU register access */ + spinlock_t rcu_idx_lock; + /* protects concurrent DIDT register access */ + spinlock_t didt_idx_lock; + /* protects concurrent ENDPOINT (audio) register access */ + spinlock_t end_idx_lock; void __iomem *rmmio; radeon_rreg_t mc_rreg; radeon_wreg_t mc_wreg; @@ -2279,17 +2299,24 @@ void cik_mm_wdoorbell(struct radeon_device *rdev, u32 offset, u32 v); */ static inline uint32_t rv370_pcie_rreg(struct radeon_device *rdev, uint32_t reg) { + unsigned long flags; uint32_t r; + spin_lock_irqsave(&rdev->pcie_idx_lock, flags); WREG32(RADEON_PCIE_INDEX, ((reg) & rdev->pcie_reg_mask)); r = RREG32(RADEON_PCIE_DATA); + spin_unlock_irqrestore(&rdev->pcie_idx_lock, flags); return r; } static inline void rv370_pcie_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v) { + unsigned long flags; + + spin_lock_irqsave(&rdev->pcie_idx_lock, flags); WREG32(RADEON_PCIE_INDEX, ((reg) & rdev->pcie_reg_mask)); WREG32(RADEON_PCIE_DATA, (v)); + spin_unlock_irqrestore(&rdev->pcie_idx_lock, flags); } static inline u32 tn_smc_rreg(struct radeon_device *rdev, u32 reg) @@ -2316,93 +2343,135 @@ static inline void tn_smc_wreg(struct radeon_device *rdev, u32 reg, u32 v) static inline u32 r600_rcu_rreg(struct radeon_device *rdev, u32 reg) { + unsigned long flags; u32 r; + spin_lock_irqsave(&rdev->rcu_idx_lock, flags); WREG32(R600_RCU_INDEX, ((reg) & 0x1fff)); r = RREG32(R600_RCU_DATA); + spin_unlock_irqrestore(&rdev->rcu_idx_lock, flags); return r; } static inline void r600_rcu_wreg(struct radeon_device *rdev, u32 reg, u32 v) { + unsigned long flags; + + spin_lock_irqsave(&rdev->rcu_idx_lock, flags); WREG32(R600_RCU_INDEX, ((reg) & 0x1fff)); WREG32(R600_RCU_DATA, (v)); + spin_unlock_irqrestore(&rdev->rcu_idx_lock, flags); } static inline u32 eg_cg_rreg(struct radeon_device *rdev, u32 reg) { + unsigned long flags; u32 r; + spin_lock_irqsave(&rdev->cg_idx_lock, flags); WREG32(EVERGREEN_CG_IND_ADDR, ((reg) & 0xffff)); r = RREG32(EVERGREEN_CG_IND_DATA); + spin_unlock_irqrestore(&rdev->cg_idx_lock, flags); return r; } static inline void eg_cg_wreg(struct radeon_device *rdev, u32 reg, u32 v) { + unsigned long flags; + + spin_lock_irqsave(&rdev->cg_idx_lock, flags); WREG32(EVERGREEN_CG_IND_ADDR, ((reg) & 0xffff)); WREG32(EVERGREEN_CG_IND_DATA, (v)); + spin_unlock_irqrestore(&rdev->cg_idx_lock, flags); } static inline u32 eg_pif_phy0_rreg(struct radeon_device *rdev, u32 reg) { + unsigned long flags; u32 r; + spin_lock_irqsave(&rdev->pif_idx_lock, flags); WREG32(EVERGREEN_PIF_PHY0_INDEX, ((reg) & 0xffff)); r = RREG32(EVERGREEN_PIF_PHY0_DATA); + spin_unlock_irqrestore(&rdev->pif_idx_lock, flags); return r; } static inline void eg_pif_phy0_wreg(struct radeon_device *rdev, u32 reg, u32 v) { + unsigned long flags; + + spin_lock_irqsave(&rdev->pif_idx_lock, flags); WREG32(EVERGREEN_PIF_PHY0_INDEX, ((reg) & 0xffff)); WREG32(EVERGREEN_PIF_PHY0_DATA, (v)); + spin_unlock_irqrestore(&rdev->pif_idx_lock, flags); } static inline u32 eg_pif_phy1_rreg(struct radeon_device *rdev, u32 reg) { + unsigned long flags; u32 r; + spin_lock_irqsave(&rdev->pif_idx_lock, flags); WREG32(EVERGREEN_PIF_PHY1_INDEX, ((reg) & 0xffff)); r = RREG32(EVERGREEN_PIF_PHY1_DATA); + spin_unlock_irqrestore(&rdev->pif_idx_lock, flags); return r; } static inline void eg_pif_phy1_wreg(struct radeon_device *rdev, u32 reg, u32 v) { + unsigned long flags; + + spin_lock_irqsave(&rdev->pif_idx_lock, flags); WREG32(EVERGREEN_PIF_PHY1_INDEX, ((reg) & 0xffff)); WREG32(EVERGREEN_PIF_PHY1_DATA, (v)); + spin_unlock_irqrestore(&rdev->pif_idx_lock, flags); } static inline u32 r600_uvd_ctx_rreg(struct radeon_device *rdev, u32 reg) { + unsigned long flags; u32 r; + spin_lock_irqsave(&rdev->uvd_idx_lock, flags); WREG32(R600_UVD_CTX_INDEX, ((reg) & 0x1ff)); r = RREG32(R600_UVD_CTX_DATA); + spin_unlock_irqrestore(&rdev->uvd_idx_lock, flags); return r; } static inline void r600_uvd_ctx_wreg(struct radeon_device *rdev, u32 reg, u32 v) { + unsigned long flags; + + spin_lock_irqsave(&rdev->uvd_idx_lock, flags); WREG32(R600_UVD_CTX_INDEX, ((reg) & 0x1ff)); WREG32(R600_UVD_CTX_DATA, (v)); + spin_unlock_irqrestore(&rdev->uvd_idx_lock, flags); } static inline u32 cik_didt_rreg(struct radeon_device *rdev, u32 reg) { + unsigned long flags; u32 r; + spin_lock_irqsave(&rdev->didt_idx_lock, flags); WREG32(CIK_DIDT_IND_INDEX, (reg)); r = RREG32(CIK_DIDT_IND_DATA); + spin_unlock_irqrestore(&rdev->didt_idx_lock, flags); return r; } static inline void cik_didt_wreg(struct radeon_device *rdev, u32 reg, u32 v) { + unsigned long flags; + + spin_lock_irqsave(&rdev->didt_idx_lock, flags); WREG32(CIK_DIDT_IND_INDEX, (reg)); WREG32(CIK_DIDT_IND_DATA, (v)); + spin_unlock_irqrestore(&rdev->didt_idx_lock, flags); } void r100_pll_errata_after_index(struct radeon_device *rdev); diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index b9032144c089..e29faa73b574 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -1250,6 +1250,16 @@ int radeon_device_init(struct radeon_device *rdev, /* TODO: block userspace mapping of io register */ spin_lock_init(&rdev->mmio_idx_lock); spin_lock_init(&rdev->smc_idx_lock); + spin_lock_init(&rdev->pll_idx_lock); + spin_lock_init(&rdev->mc_idx_lock); + spin_lock_init(&rdev->pcie_idx_lock); + spin_lock_init(&rdev->pciep_idx_lock); + spin_lock_init(&rdev->pif_idx_lock); + spin_lock_init(&rdev->cg_idx_lock); + spin_lock_init(&rdev->uvd_idx_lock); + spin_lock_init(&rdev->rcu_idx_lock); + spin_lock_init(&rdev->didt_idx_lock); + spin_lock_init(&rdev->end_idx_lock); if (rdev->family >= CHIP_BONAIRE) { rdev->rmmio_base = pci_resource_start(rdev->pdev, 5); rdev->rmmio_size = pci_resource_len(rdev->pdev, 5); diff --git a/drivers/gpu/drm/radeon/rs400.c b/drivers/gpu/drm/radeon/rs400.c index b8074a8ec75a..9566b5940a5a 100644 --- a/drivers/gpu/drm/radeon/rs400.c +++ b/drivers/gpu/drm/radeon/rs400.c @@ -274,19 +274,26 @@ static void rs400_mc_init(struct radeon_device *rdev) uint32_t rs400_mc_rreg(struct radeon_device *rdev, uint32_t reg) { + unsigned long flags; uint32_t r; + spin_lock_irqsave(&rdev->mc_idx_lock, flags); WREG32(RS480_NB_MC_INDEX, reg & 0xff); r = RREG32(RS480_NB_MC_DATA); WREG32(RS480_NB_MC_INDEX, 0xff); + spin_unlock_irqrestore(&rdev->mc_idx_lock, flags); return r; } void rs400_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v) { + unsigned long flags; + + spin_lock_irqsave(&rdev->mc_idx_lock, flags); WREG32(RS480_NB_MC_INDEX, ((reg) & 0xff) | RS480_NB_MC_IND_WR_EN); WREG32(RS480_NB_MC_DATA, (v)); WREG32(RS480_NB_MC_INDEX, 0xff); + spin_unlock_irqrestore(&rdev->mc_idx_lock, flags); } #if defined(CONFIG_DEBUG_FS) diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c index 670b555d2ca2..6acba8017b9a 100644 --- a/drivers/gpu/drm/radeon/rs600.c +++ b/drivers/gpu/drm/radeon/rs600.c @@ -847,16 +847,26 @@ void rs600_bandwidth_update(struct radeon_device *rdev) uint32_t rs600_mc_rreg(struct radeon_device *rdev, uint32_t reg) { + unsigned long flags; + u32 r; + + spin_lock_irqsave(&rdev->mc_idx_lock, flags); WREG32(R_000070_MC_IND_INDEX, S_000070_MC_IND_ADDR(reg) | S_000070_MC_IND_CITF_ARB0(1)); - return RREG32(R_000074_MC_IND_DATA); + r = RREG32(R_000074_MC_IND_DATA); + spin_unlock_irqrestore(&rdev->mc_idx_lock, flags); + return r; } void rs600_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v) { + unsigned long flags; + + spin_lock_irqsave(&rdev->mc_idx_lock, flags); WREG32(R_000070_MC_IND_INDEX, S_000070_MC_IND_ADDR(reg) | S_000070_MC_IND_CITF_ARB0(1) | S_000070_MC_IND_WR_EN(1)); WREG32(R_000074_MC_IND_DATA, v); + spin_unlock_irqrestore(&rdev->mc_idx_lock, flags); } static void rs600_debugfs(struct radeon_device *rdev) diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c index d8ddfb34545d..1447d794c22a 100644 --- a/drivers/gpu/drm/radeon/rs690.c +++ b/drivers/gpu/drm/radeon/rs690.c @@ -631,20 +631,27 @@ void rs690_bandwidth_update(struct radeon_device *rdev) uint32_t rs690_mc_rreg(struct radeon_device *rdev, uint32_t reg) { + unsigned long flags; uint32_t r; + spin_lock_irqsave(&rdev->mc_idx_lock, flags); WREG32(R_000078_MC_INDEX, S_000078_MC_IND_ADDR(reg)); r = RREG32(R_00007C_MC_DATA); WREG32(R_000078_MC_INDEX, ~C_000078_MC_IND_ADDR); + spin_unlock_irqrestore(&rdev->mc_idx_lock, flags); return r; } void rs690_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v) { + unsigned long flags; + + spin_lock_irqsave(&rdev->mc_idx_lock, flags); WREG32(R_000078_MC_INDEX, S_000078_MC_IND_ADDR(reg) | S_000078_MC_IND_WR_EN(1)); WREG32(R_00007C_MC_DATA, v); WREG32(R_000078_MC_INDEX, 0x7F); + spin_unlock_irqrestore(&rdev->mc_idx_lock, flags); } static void rs690_mc_program(struct radeon_device *rdev) diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c index 8ea1573ae820..873eb4b193b4 100644 --- a/drivers/gpu/drm/radeon/rv515.c +++ b/drivers/gpu/drm/radeon/rv515.c @@ -209,19 +209,27 @@ static void rv515_mc_init(struct radeon_device *rdev) uint32_t rv515_mc_rreg(struct radeon_device *rdev, uint32_t reg) { + unsigned long flags; uint32_t r; + spin_lock_irqsave(&rdev->mc_idx_lock, flags); WREG32(MC_IND_INDEX, 0x7f0000 | (reg & 0xffff)); r = RREG32(MC_IND_DATA); WREG32(MC_IND_INDEX, 0); + spin_unlock_irqrestore(&rdev->mc_idx_lock, flags); + return r; } void rv515_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v) { + unsigned long flags; + + spin_lock_irqsave(&rdev->mc_idx_lock, flags); WREG32(MC_IND_INDEX, 0xff0000 | ((reg) & 0xffff)); WREG32(MC_IND_DATA, (v)); WREG32(MC_IND_INDEX, 0); + spin_unlock_irqrestore(&rdev->mc_idx_lock, flags); } #if defined(CONFIG_DEBUG_FS) From 7c4622d5415038a74964480844de885e7253a0f4 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 4 Sep 2013 16:46:07 -0400 Subject: [PATCH 038/350] drm/radeon/cik: update gpu_init for an additional berlin gpu Sets the right paramters for the new pci id. Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/cik.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c index e521d4c6676f..6b6135a77462 100644 --- a/drivers/gpu/drm/radeon/cik.c +++ b/drivers/gpu/drm/radeon/cik.c @@ -2731,7 +2731,8 @@ static void cik_gpu_init(struct radeon_device *rdev) } else if ((rdev->pdev->device == 0x1309) || (rdev->pdev->device == 0x130A) || (rdev->pdev->device == 0x130D) || - (rdev->pdev->device == 0x1313)) { + (rdev->pdev->device == 0x1313) || + (rdev->pdev->device == 0x131D)) { rdev->config.cik.max_cu_per_sh = 6; rdev->config.cik.max_backends_per_se = 2; } else if ((rdev->pdev->device == 0x1306) || From 9a71677874d200865433647e9282fcf9fa6b05dd Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 4 Sep 2013 16:48:40 -0400 Subject: [PATCH 039/350] drm/radeon: add some additional berlin pci ids Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- include/drm/drm_pciids.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h index fd54a14a7c2a..3d79e513c0b3 100644 --- a/include/drm/drm_pciids.h +++ b/include/drm/drm_pciids.h @@ -12,11 +12,14 @@ {0x1002, 0x130F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ {0x1002, 0x1310, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ {0x1002, 0x1311, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ + {0x1002, 0x1312, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ {0x1002, 0x1313, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ {0x1002, 0x1315, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ {0x1002, 0x1316, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ + {0x1002, 0x1317, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ {0x1002, 0x131B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ {0x1002, 0x131C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ + {0x1002, 0x131D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \ {0x1002, 0x3150, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY}, \ {0x1002, 0x3151, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ {0x1002, 0x3152, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ From 2b19d17fbd10edf4fbc809e40cf779dfbe14d396 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 4 Sep 2013 16:58:29 -0400 Subject: [PATCH 040/350] drm/radeon: fix typo in PG flags s/CG/PG/ in the GFX powergating flag name. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/cik.c | 6 +++--- drivers/gpu/drm/radeon/radeon.h | 2 +- drivers/gpu/drm/radeon/radeon_asic.c | 6 +++--- drivers/gpu/drm/radeon/si.c | 4 ++-- 4 files changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c index 6b6135a77462..adbdb6503b05 100644 --- a/drivers/gpu/drm/radeon/cik.c +++ b/drivers/gpu/drm/radeon/cik.c @@ -5558,7 +5558,7 @@ static void cik_enable_gfx_cgpg(struct radeon_device *rdev, { u32 data, orig; - if (enable && (rdev->pg_flags & RADEON_PG_SUPPORT_GFX_CG)) { + if (enable && (rdev->pg_flags & RADEON_PG_SUPPORT_GFX_PG)) { orig = data = RREG32(RLC_PG_CNTL); data |= GFX_PG_ENABLE; if (orig != data) @@ -5822,7 +5822,7 @@ static void cik_init_pg(struct radeon_device *rdev) if (rdev->pg_flags) { cik_enable_sck_slowdown_on_pu(rdev, true); cik_enable_sck_slowdown_on_pd(rdev, true); - if (rdev->pg_flags & RADEON_PG_SUPPORT_GFX_CG) { + if (rdev->pg_flags & RADEON_PG_SUPPORT_GFX_PG) { cik_init_gfx_cgpg(rdev); cik_enable_cp_pg(rdev, true); cik_enable_gds_pg(rdev, true); @@ -5836,7 +5836,7 @@ static void cik_fini_pg(struct radeon_device *rdev) { if (rdev->pg_flags) { cik_update_gfx_pg(rdev, false); - if (rdev->pg_flags & RADEON_PG_SUPPORT_GFX_CG) { + if (rdev->pg_flags & RADEON_PG_SUPPORT_GFX_PG) { cik_enable_cp_pg(rdev, false); cik_enable_gds_pg(rdev, false); } diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 1cfcb1b27aaa..b37f9859d5a5 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -181,7 +181,7 @@ extern int radeon_aspm; #define RADEON_CG_SUPPORT_HDP_MGCG (1 << 16) /* PG flags */ -#define RADEON_PG_SUPPORT_GFX_CG (1 << 0) +#define RADEON_PG_SUPPORT_GFX_PG (1 << 0) #define RADEON_PG_SUPPORT_GFX_SMG (1 << 1) #define RADEON_PG_SUPPORT_GFX_DMG (1 << 2) #define RADEON_PG_SUPPORT_UVD (1 << 3) diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c index 40a9b4bc3291..04876e407b36 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.c +++ b/drivers/gpu/drm/radeon/radeon_asic.c @@ -2391,7 +2391,7 @@ int radeon_asic_init(struct radeon_device *rdev) RADEON_CG_SUPPORT_HDP_LS | RADEON_CG_SUPPORT_HDP_MGCG; rdev->pg_flags = 0 | - /*RADEON_PG_SUPPORT_GFX_CG | */ + /*RADEON_PG_SUPPORT_GFX_PG | */ RADEON_PG_SUPPORT_SDMA; break; case CHIP_OLAND: @@ -2480,7 +2480,7 @@ int radeon_asic_init(struct radeon_device *rdev) RADEON_CG_SUPPORT_HDP_LS | RADEON_CG_SUPPORT_HDP_MGCG; rdev->pg_flags = 0; - /*RADEON_PG_SUPPORT_GFX_CG | + /*RADEON_PG_SUPPORT_GFX_PG | RADEON_PG_SUPPORT_GFX_SMG | RADEON_PG_SUPPORT_GFX_DMG | RADEON_PG_SUPPORT_UVD | @@ -2508,7 +2508,7 @@ int radeon_asic_init(struct radeon_device *rdev) RADEON_CG_SUPPORT_HDP_LS | RADEON_CG_SUPPORT_HDP_MGCG; rdev->pg_flags = 0; - /*RADEON_PG_SUPPORT_GFX_CG | + /*RADEON_PG_SUPPORT_GFX_PG | RADEON_PG_SUPPORT_GFX_SMG | RADEON_PG_SUPPORT_UVD | RADEON_PG_SUPPORT_VCE | diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index 1328fe5a8001..c354c1094967 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -4894,7 +4894,7 @@ static void si_enable_gfx_cgpg(struct radeon_device *rdev, { u32 tmp; - if (enable && (rdev->pg_flags & RADEON_PG_SUPPORT_GFX_CG)) { + if (enable && (rdev->pg_flags & RADEON_PG_SUPPORT_GFX_PG)) { tmp = RLC_PUD(0x10) | RLC_PDD(0x10) | RLC_TTPD(0x10) | RLC_MSD(0x10); WREG32(RLC_TTOP_D, tmp); @@ -5416,7 +5416,7 @@ static void si_init_pg(struct radeon_device *rdev) si_init_dma_pg(rdev); } si_init_ao_cu_mask(rdev); - if (rdev->pg_flags & RADEON_PG_SUPPORT_GFX_CG) { + if (rdev->pg_flags & RADEON_PG_SUPPORT_GFX_PG) { si_init_gfx_cgpg(rdev); } si_enable_dma_pg(rdev, true); From 1b9ba70a49ba92e910d8e5df702edf8c1858cecf Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 5 Sep 2013 09:52:37 -0400 Subject: [PATCH 041/350] drm/radeon/r6xx: add a stubbed out set_uvd_clocks callback Certain r6xx boards use the same power state for both UVD and other things. Since we don't support UVD on r6xx boards at the moment, there was no callback installed for setting the UVD clocks, however, on systems that use the same power state, this leads to a NULL pointer dereference. Fill in a stubbed out implementation for now to avoid the crash. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=66963 Signed-off-by: Alex Deucher Cc: "3.11" --- drivers/gpu/drm/radeon/r600.c | 5 +++++ drivers/gpu/drm/radeon/radeon_asic.c | 2 ++ drivers/gpu/drm/radeon/radeon_asic.h | 1 + 3 files changed, 8 insertions(+) diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 11cd99e3cbb5..2a1b1876b431 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -119,6 +119,11 @@ u32 r600_get_xclk(struct radeon_device *rdev) return rdev->clock.spll.reference_freq; } +int r600_set_uvd_clocks(struct radeon_device *rdev, u32 vclk, u32 dclk) +{ + return 0; +} + /* get temperature in millidegrees */ int rv6xx_get_temp(struct radeon_device *rdev) { diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c index 04876e407b36..7b0917082925 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.c +++ b/drivers/gpu/drm/radeon/radeon_asic.c @@ -1037,6 +1037,7 @@ static struct radeon_asic rv6xx_asic = { .set_pcie_lanes = &r600_set_pcie_lanes, .set_clock_gating = NULL, .get_temperature = &rv6xx_get_temp, + .set_uvd_clocks = &r600_set_uvd_clocks, }, .dpm = { .init = &rv6xx_dpm_init, @@ -1126,6 +1127,7 @@ static struct radeon_asic rs780_asic = { .set_pcie_lanes = NULL, .set_clock_gating = NULL, .get_temperature = &rv6xx_get_temp, + .set_uvd_clocks = &r600_set_uvd_clocks, }, .dpm = { .init = &rs780_dpm_init, diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h index 98a59f5d6edc..71b0f0dc2328 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -389,6 +389,7 @@ int r600_mc_wait_for_idle(struct radeon_device *rdev); u32 r600_get_xclk(struct radeon_device *rdev); uint64_t r600_get_gpu_clock_counter(struct radeon_device *rdev); int rv6xx_get_temp(struct radeon_device *rdev); +int r600_set_uvd_clocks(struct radeon_device *rdev, u32 vclk, u32 dclk); int r600_dpm_pre_set_power_state(struct radeon_device *rdev); void r600_dpm_post_set_power_state(struct radeon_device *rdev); /* r600 dma */ From c647dcfde67e5bf443159e70632091d852833408 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Sat, 7 Sep 2013 18:29:00 +0200 Subject: [PATCH 042/350] drm/radeon: remove stale radeon_fence_retire tracepoint MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Not used for quite a while now. Signed-off-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/radeon_trace.h | 7 ------- 1 file changed, 7 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_trace.h b/drivers/gpu/drm/radeon/radeon_trace.h index eafd8160a155..a7d7c6df68e2 100644 --- a/drivers/gpu/drm/radeon/radeon_trace.h +++ b/drivers/gpu/drm/radeon/radeon_trace.h @@ -53,13 +53,6 @@ DEFINE_EVENT(radeon_fence_request, radeon_fence_emit, TP_ARGS(dev, seqno) ); -DEFINE_EVENT(radeon_fence_request, radeon_fence_retire, - - TP_PROTO(struct drm_device *dev, u32 seqno), - - TP_ARGS(dev, seqno) -); - DEFINE_EVENT(radeon_fence_request, radeon_fence_wait_begin, TP_PROTO(struct drm_device *dev, u32 seqno), From 860024e5c9f61358917e2a13e9cdf92e75479aca Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Sat, 7 Sep 2013 18:29:01 +0200 Subject: [PATCH 043/350] drm/radeon: add command submission tracepoint MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Neither complete nor perfect, but solves my problem at hand and might be useful in the future. Signed-off-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/radeon_cs.c | 3 +++ drivers/gpu/drm/radeon/radeon_trace.h | 20 ++++++++++++++++++++ 2 files changed, 23 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c index a56084410372..27ea00489ecc 100644 --- a/drivers/gpu/drm/radeon/radeon_cs.c +++ b/drivers/gpu/drm/radeon/radeon_cs.c @@ -28,6 +28,7 @@ #include #include "radeon_reg.h" #include "radeon.h" +#include "radeon_trace.h" static int radeon_cs_parser_relocs(struct radeon_cs_parser *p) { @@ -559,6 +560,8 @@ int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) return r; } + trace_radeon_cs(&parser); + r = radeon_cs_ib_chunk(rdev, &parser); if (r) { goto out; diff --git a/drivers/gpu/drm/radeon/radeon_trace.h b/drivers/gpu/drm/radeon/radeon_trace.h index a7d7c6df68e2..f7e367815964 100644 --- a/drivers/gpu/drm/radeon/radeon_trace.h +++ b/drivers/gpu/drm/radeon/radeon_trace.h @@ -27,6 +27,26 @@ TRACE_EVENT(radeon_bo_create, TP_printk("bo=%p, pages=%u", __entry->bo, __entry->pages) ); +TRACE_EVENT(radeon_cs, + TP_PROTO(struct radeon_cs_parser *p), + TP_ARGS(p), + TP_STRUCT__entry( + __field(u32, ring) + __field(u32, dw) + __field(u32, fences) + ), + + TP_fast_assign( + __entry->ring = p->ring; + __entry->dw = p->chunks[p->chunk_ib_idx].length_dw; + __entry->fences = radeon_fence_count_emitted( + p->rdev, p->ring); + ), + TP_printk("ring=%u, dw=%u, fences=%u", + __entry->ring, __entry->dw, + __entry->fences) +); + DECLARE_EVENT_CLASS(radeon_fence_request, TP_PROTO(struct drm_device *dev, u32 seqno), From 84f3d9f7b4781dea6e11dcaf7f81367c1b39fef0 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 10 Sep 2013 09:40:37 -0400 Subject: [PATCH 044/350] drm/radeon/dpm: fix fallback for empty UVD clocks Some older 6xx-7xx boards didn't always fill in the UVD clocks properly in the UVD power states. This leads to the driver trying to set a 0 clock which results in slow or broken UVD playback. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=69120 Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/rs780_dpm.c | 10 +++++++--- drivers/gpu/drm/radeon/rv770_dpm.c | 10 +++++++--- 2 files changed, 14 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/radeon/rs780_dpm.c b/drivers/gpu/drm/radeon/rs780_dpm.c index 625d6ea1f0d1..828a7764660c 100644 --- a/drivers/gpu/drm/radeon/rs780_dpm.c +++ b/drivers/gpu/drm/radeon/rs780_dpm.c @@ -726,14 +726,18 @@ static void rs780_parse_pplib_non_clock_info(struct radeon_device *rdev, if (ATOM_PPLIB_NONCLOCKINFO_VER1 < table_rev) { rps->vclk = le32_to_cpu(non_clock_info->ulVCLK); rps->dclk = le32_to_cpu(non_clock_info->ulDCLK); - } else if (r600_is_uvd_state(rps->class, rps->class2)) { - rps->vclk = RS780_DEFAULT_VCLK_FREQ; - rps->dclk = RS780_DEFAULT_DCLK_FREQ; } else { rps->vclk = 0; rps->dclk = 0; } + if (r600_is_uvd_state(rps->class, rps->class2)) { + if ((rps->vclk == 0) || (rps->dclk == 0)) { + rps->vclk = RS780_DEFAULT_VCLK_FREQ; + rps->dclk = RS780_DEFAULT_DCLK_FREQ; + } + } + if (rps->class & ATOM_PPLIB_CLASSIFICATION_BOOT) rdev->pm.dpm.boot_ps = rps; if (rps->class & ATOM_PPLIB_CLASSIFICATION_UVDSTATE) diff --git a/drivers/gpu/drm/radeon/rv770_dpm.c b/drivers/gpu/drm/radeon/rv770_dpm.c index 8cbb85dae5aa..7282ce7dab76 100644 --- a/drivers/gpu/drm/radeon/rv770_dpm.c +++ b/drivers/gpu/drm/radeon/rv770_dpm.c @@ -2147,14 +2147,18 @@ static void rv7xx_parse_pplib_non_clock_info(struct radeon_device *rdev, if (ATOM_PPLIB_NONCLOCKINFO_VER1 < table_rev) { rps->vclk = le32_to_cpu(non_clock_info->ulVCLK); rps->dclk = le32_to_cpu(non_clock_info->ulDCLK); - } else if (r600_is_uvd_state(rps->class, rps->class2)) { - rps->vclk = RV770_DEFAULT_VCLK_FREQ; - rps->dclk = RV770_DEFAULT_DCLK_FREQ; } else { rps->vclk = 0; rps->dclk = 0; } + if (r600_is_uvd_state(rps->class, rps->class2)) { + if ((rps->vclk == 0) || (rps->dclk == 0)) { + rps->vclk = RV770_DEFAULT_VCLK_FREQ; + rps->dclk = RV770_DEFAULT_DCLK_FREQ; + } + } + if (rps->class & ATOM_PPLIB_CLASSIFICATION_BOOT) rdev->pm.dpm.boot_ps = rps; if (rps->class & ATOM_PPLIB_CLASSIFICATION_UVDSTATE) From 91f3a6aaf280294b07c05dfe606e6c27b7ba3c72 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 9 Sep 2013 10:54:22 -0400 Subject: [PATCH 045/350] drm/radeon/atom: workaround vbios bug in transmitter table on rs880 (v2) The OUTPUT_ENABLE action jumps past the point in the coder where the data_offset is set on certain rs780 cards. This worked previously because the OUTPUT_ENABLE action is always called immediately after the ENABLE action so the data_offset remained set. In 6f8bbaf568c7f2c497558bfd04654c0b9841ad57 (drm/radeon/atom: initialize more atom interpretor elements to 0), we explictly reset data_offset to 0 between atom calls which then caused this to fail. The fix is to just skip calling the OUTPUT_ENABLE action on the problematic chipsets. The ENABLE action does the same thing and more. Ultimately, we could probably drop the OUTPUT_ENABLE action all together on DCE3 asics. fixes: https://bugzilla.kernel.org/show_bug.cgi?id=60791 v2: only rs880 seems to be affected Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/atombios_encoders.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c index 9166e0b95a0a..32923d2f6002 100644 --- a/drivers/gpu/drm/radeon/atombios_encoders.c +++ b/drivers/gpu/drm/radeon/atombios_encoders.c @@ -1650,8 +1650,12 @@ radeon_atom_encoder_dpms_dig(struct drm_encoder *encoder, int mode) atombios_dig_encoder_setup(encoder, ATOM_ENABLE, 0); atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_SETUP, 0, 0); atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE, 0, 0); - /* some early dce3.2 boards have a bug in their transmitter control table */ - if ((rdev->family != CHIP_RV710) && (rdev->family != CHIP_RV730)) + /* some dce3.x boards have a bug in their transmitter control table. + * ACTION_ENABLE_OUTPUT can probably be dropped since ACTION_ENABLE + * does the same thing and more. + */ + if ((rdev->family != CHIP_RV710) && (rdev->family != CHIP_RV730) && + (rdev->family != CHIP_RS880)) atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE_OUTPUT, 0, 0); } if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(encoder)) && connector) { From 3e4e21292d0089d4c87b933ab05c67824e940b9e Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Tue, 10 Sep 2013 10:30:44 +0200 Subject: [PATCH 046/350] drm/radeon: simplify driver data retrieval You can get the driver data from struct device directly, there's no need to get the PCI device first. Signed-off-by: Jean Delvare Cc: David Airlie Cc: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/radeon_pm.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index d7555369a3e5..dea7dcbb3507 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -333,7 +333,7 @@ static ssize_t radeon_get_pm_profile(struct device *dev, struct device_attribute *attr, char *buf) { - struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev)); + struct drm_device *ddev = dev_get_drvdata(dev); struct radeon_device *rdev = ddev->dev_private; int cp = rdev->pm.profile; @@ -349,7 +349,7 @@ static ssize_t radeon_set_pm_profile(struct device *dev, const char *buf, size_t count) { - struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev)); + struct drm_device *ddev = dev_get_drvdata(dev); struct radeon_device *rdev = ddev->dev_private; mutex_lock(&rdev->pm.mutex); @@ -383,7 +383,7 @@ static ssize_t radeon_get_pm_method(struct device *dev, struct device_attribute *attr, char *buf) { - struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev)); + struct drm_device *ddev = dev_get_drvdata(dev); struct radeon_device *rdev = ddev->dev_private; int pm = rdev->pm.pm_method; @@ -397,7 +397,7 @@ static ssize_t radeon_set_pm_method(struct device *dev, const char *buf, size_t count) { - struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev)); + struct drm_device *ddev = dev_get_drvdata(dev); struct radeon_device *rdev = ddev->dev_private; /* we don't support the legacy modes with dpm */ @@ -433,7 +433,7 @@ static ssize_t radeon_get_dpm_state(struct device *dev, struct device_attribute *attr, char *buf) { - struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev)); + struct drm_device *ddev = dev_get_drvdata(dev); struct radeon_device *rdev = ddev->dev_private; enum radeon_pm_state_type pm = rdev->pm.dpm.user_state; @@ -447,7 +447,7 @@ static ssize_t radeon_set_dpm_state(struct device *dev, const char *buf, size_t count) { - struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev)); + struct drm_device *ddev = dev_get_drvdata(dev); struct radeon_device *rdev = ddev->dev_private; mutex_lock(&rdev->pm.mutex); @@ -472,7 +472,7 @@ static ssize_t radeon_get_dpm_forced_performance_level(struct device *dev, struct device_attribute *attr, char *buf) { - struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev)); + struct drm_device *ddev = dev_get_drvdata(dev); struct radeon_device *rdev = ddev->dev_private; enum radeon_dpm_forced_level level = rdev->pm.dpm.forced_level; @@ -486,7 +486,7 @@ static ssize_t radeon_set_dpm_forced_performance_level(struct device *dev, const char *buf, size_t count) { - struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev)); + struct drm_device *ddev = dev_get_drvdata(dev); struct radeon_device *rdev = ddev->dev_private; enum radeon_dpm_forced_level level; int ret = 0; @@ -524,7 +524,7 @@ static ssize_t radeon_hwmon_show_temp(struct device *dev, struct device_attribute *attr, char *buf) { - struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev)); + struct drm_device *ddev = dev_get_drvdata(dev); struct radeon_device *rdev = ddev->dev_private; int temp; From 6ea4e84d209c1b49c90b52efff2ab0b1824619a6 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Tue, 10 Sep 2013 10:32:41 +0200 Subject: [PATCH 047/350] drm/radeon: expose DPM thermal thresholds through sysfs The hwmon sysfs interface allows exposing temperature limits. The "max" and "min" thresholds will be exposed as a critical high limit and its hysteresis value, respectively. This gives the user a better idea of how well cooling is doing and whether it is sufficient. Signed-off-by: Jean Delvare Cc: David Airlie Cc: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/radeon_pm.c | 38 ++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index dea7dcbb3507..33c88c4038cf 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -536,6 +536,23 @@ static ssize_t radeon_hwmon_show_temp(struct device *dev, return snprintf(buf, PAGE_SIZE, "%d\n", temp); } +static ssize_t radeon_hwmon_show_temp_thresh(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct drm_device *ddev = dev_get_drvdata(dev); + struct radeon_device *rdev = ddev->dev_private; + int hyst = to_sensor_dev_attr(attr)->index; + int temp; + + if (hyst) + temp = rdev->pm.dpm.thermal.min_temp; + else + temp = rdev->pm.dpm.thermal.max_temp; + + return snprintf(buf, PAGE_SIZE, "%d\n", temp); +} + static ssize_t radeon_hwmon_show_name(struct device *dev, struct device_attribute *attr, char *buf) @@ -544,16 +561,37 @@ static ssize_t radeon_hwmon_show_name(struct device *dev, } static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, radeon_hwmon_show_temp, NULL, 0); +static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, radeon_hwmon_show_temp_thresh, NULL, 0); +static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO, radeon_hwmon_show_temp_thresh, NULL, 1); static SENSOR_DEVICE_ATTR(name, S_IRUGO, radeon_hwmon_show_name, NULL, 0); static struct attribute *hwmon_attributes[] = { &sensor_dev_attr_temp1_input.dev_attr.attr, + &sensor_dev_attr_temp1_crit.dev_attr.attr, + &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr, &sensor_dev_attr_name.dev_attr.attr, NULL }; +static umode_t hwmon_attributes_visible(struct kobject *kobj, + struct attribute *attr, int index) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct drm_device *ddev = dev_get_drvdata(dev); + struct radeon_device *rdev = ddev->dev_private; + + /* Skip limit attributes if DPM is not enabled */ + if (rdev->pm.pm_method != PM_METHOD_DPM && + (attr == &sensor_dev_attr_temp1_crit.dev_attr.attr || + attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr)) + return 0; + + return attr->mode; +} + static const struct attribute_group hwmon_attrgroup = { .attrs = hwmon_attributes, + .is_visible = hwmon_attributes_visible, }; static int radeon_hwmon_init(struct radeon_device *rdev) From ef4e03658420bbf91365647615460668c2510e79 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 9 Sep 2013 18:56:50 -0400 Subject: [PATCH 048/350] drm/radeon/dpm: handle bapm on trinity bapm is a power management feature for handling the power budget between the CPU and GPU on APUs. This patch adds support for enabling or disabling it. For now disable it by default. Enabling it properly requires quite a bit more work and will be addressed in a separate patch. This patch fixes hangs on boot on certain trinity laptops when the system is on battery power. Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/ppsmc.h | 2 ++ drivers/gpu/drm/radeon/trinity_dpm.c | 2 ++ drivers/gpu/drm/radeon/trinity_dpm.h | 1 + drivers/gpu/drm/radeon/trinity_smc.c | 8 ++++++++ 4 files changed, 13 insertions(+) diff --git a/drivers/gpu/drm/radeon/ppsmc.h b/drivers/gpu/drm/radeon/ppsmc.h index 682842804bce..5670b8291285 100644 --- a/drivers/gpu/drm/radeon/ppsmc.h +++ b/drivers/gpu/drm/radeon/ppsmc.h @@ -163,6 +163,8 @@ typedef uint8_t PPSMC_Result; #define PPSMC_MSG_VCEPowerON ((uint32_t) 0x10f) #define PPSMC_MSG_DCE_RemoveVoltageAdjustment ((uint32_t) 0x11d) #define PPSMC_MSG_DCE_AllowVoltageAdjustment ((uint32_t) 0x11e) +#define PPSMC_MSG_EnableBAPM ((uint32_t) 0x120) +#define PPSMC_MSG_DisableBAPM ((uint32_t) 0x121) #define PPSMC_MSG_UVD_DPM_Config ((uint32_t) 0x124) diff --git a/drivers/gpu/drm/radeon/trinity_dpm.c b/drivers/gpu/drm/radeon/trinity_dpm.c index b07b7b8f1aff..b1b5b3f5e07b 100644 --- a/drivers/gpu/drm/radeon/trinity_dpm.c +++ b/drivers/gpu/drm/radeon/trinity_dpm.c @@ -1091,6 +1091,7 @@ int trinity_dpm_enable(struct radeon_device *rdev) trinity_program_sclk_dpm(rdev); trinity_start_dpm(rdev); trinity_wait_for_dpm_enabled(rdev); + trinity_dpm_bapm_enable(rdev, false); trinity_release_mutex(rdev); if (rdev->irq.installed && @@ -1116,6 +1117,7 @@ void trinity_dpm_disable(struct radeon_device *rdev) trinity_release_mutex(rdev); return; } + trinity_dpm_bapm_enable(rdev, false); trinity_disable_clock_power_gating(rdev); sumo_clear_vc(rdev); trinity_wait_for_level_0(rdev); diff --git a/drivers/gpu/drm/radeon/trinity_dpm.h b/drivers/gpu/drm/radeon/trinity_dpm.h index e82df071f8b3..259d9e817c96 100644 --- a/drivers/gpu/drm/radeon/trinity_dpm.h +++ b/drivers/gpu/drm/radeon/trinity_dpm.h @@ -118,6 +118,7 @@ struct trinity_power_info { #define TRINITY_AT_DFLT 30 /* trinity_smc.c */ +int trinity_dpm_bapm_enable(struct radeon_device *rdev, bool enable); int trinity_dpm_config(struct radeon_device *rdev, bool enable); int trinity_uvd_dpm_config(struct radeon_device *rdev); int trinity_dpm_force_state(struct radeon_device *rdev, u32 n); diff --git a/drivers/gpu/drm/radeon/trinity_smc.c b/drivers/gpu/drm/radeon/trinity_smc.c index a42d89f1830c..9672bcbc7312 100644 --- a/drivers/gpu/drm/radeon/trinity_smc.c +++ b/drivers/gpu/drm/radeon/trinity_smc.c @@ -56,6 +56,14 @@ static int trinity_notify_message_to_smu(struct radeon_device *rdev, u32 id) return 0; } +int trinity_dpm_bapm_enable(struct radeon_device *rdev, bool enable) +{ + if (enable) + return trinity_notify_message_to_smu(rdev, PPSMC_MSG_EnableBAPM); + else + return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DisableBAPM); +} + int trinity_dpm_config(struct radeon_device *rdev, bool enable) { if (enable) From 64d03221eed88dce7f0c1edd44a3680b595b29bd Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 9 Sep 2013 19:27:01 -0400 Subject: [PATCH 049/350] drm/radeon/dpm: handle bapm on kb/kv bapm is a power management feature for handling the power budget between the CPU and GPU on APUs. This patch adds support for enabling or disabling it. For now disable it by default. Enabling it properly requires quite a bit more work and will be addressed in a separate patch. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/kv_dpm.c | 8 ++++++++ drivers/gpu/drm/radeon/kv_dpm.h | 1 + drivers/gpu/drm/radeon/kv_smc.c | 8 ++++++++ 3 files changed, 17 insertions(+) diff --git a/drivers/gpu/drm/radeon/kv_dpm.c b/drivers/gpu/drm/radeon/kv_dpm.c index c87d1945a6f3..92bb998cc611 100644 --- a/drivers/gpu/drm/radeon/kv_dpm.c +++ b/drivers/gpu/drm/radeon/kv_dpm.c @@ -1214,6 +1214,12 @@ int kv_dpm_enable(struct radeon_device *rdev) radeon_irq_set(rdev); } + ret = kv_smc_bapm_enable(rdev, false); + if (ret) { + DRM_ERROR("kv_smc_bapm_enable failed\n"); + return ret; + } + /* powerdown unused blocks for now */ kv_dpm_powergate_acp(rdev, true); kv_dpm_powergate_samu(rdev, true); @@ -1237,6 +1243,8 @@ void kv_dpm_disable(struct radeon_device *rdev) RADEON_CG_BLOCK_BIF | RADEON_CG_BLOCK_HDP), false); + kv_smc_bapm_enable(rdev, false); + /* powerup blocks */ kv_dpm_powergate_acp(rdev, false); kv_dpm_powergate_samu(rdev, false); diff --git a/drivers/gpu/drm/radeon/kv_dpm.h b/drivers/gpu/drm/radeon/kv_dpm.h index 32bb079572d7..8cef7525d7a8 100644 --- a/drivers/gpu/drm/radeon/kv_dpm.h +++ b/drivers/gpu/drm/radeon/kv_dpm.h @@ -192,6 +192,7 @@ int kv_send_msg_to_smc_with_parameter(struct radeon_device *rdev, int kv_read_smc_sram_dword(struct radeon_device *rdev, u32 smc_address, u32 *value, u32 limit); int kv_smc_dpm_enable(struct radeon_device *rdev, bool enable); +int kv_smc_bapm_enable(struct radeon_device *rdev, bool enable); int kv_copy_bytes_to_smc(struct radeon_device *rdev, u32 smc_start_address, const u8 *src, u32 byte_count, u32 limit); diff --git a/drivers/gpu/drm/radeon/kv_smc.c b/drivers/gpu/drm/radeon/kv_smc.c index 34a226d7e34a..0000b59a6d05 100644 --- a/drivers/gpu/drm/radeon/kv_smc.c +++ b/drivers/gpu/drm/radeon/kv_smc.c @@ -107,6 +107,14 @@ int kv_smc_dpm_enable(struct radeon_device *rdev, bool enable) return kv_notify_message_to_smu(rdev, PPSMC_MSG_DPM_Disable); } +int kv_smc_bapm_enable(struct radeon_device *rdev, bool enable) +{ + if (enable) + return kv_notify_message_to_smu(rdev, PPSMC_MSG_EnableBAPM); + else + return kv_notify_message_to_smu(rdev, PPSMC_MSG_DisableBAPM); +} + int kv_copy_bytes_to_smc(struct radeon_device *rdev, u32 smc_start_address, const u8 *src, u32 byte_count, u32 limit) From 1c71bda097f797820e246dc9e38f0bda817d0818 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 9 Sep 2013 19:11:52 -0400 Subject: [PATCH 050/350] drm/radeon/dpm: add infrastructure to properly handle bapm bapm is a pm feature for sharing the power budget between the GPU and the CPU on APUs. It needs to be enabled or disabled in certain circumstances. For now, disable it when on battery and enable it when on AC power. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/radeon.h | 2 ++ drivers/gpu/drm/radeon/radeon_pm.c | 11 ++++++++++- 2 files changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index b37f9859d5a5..a400ac1c4147 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -1778,6 +1778,7 @@ struct radeon_asic { int (*force_performance_level)(struct radeon_device *rdev, enum radeon_dpm_forced_level level); bool (*vblank_too_short)(struct radeon_device *rdev); void (*powergate_uvd)(struct radeon_device *rdev, bool gate); + void (*enable_bapm)(struct radeon_device *rdev, bool enable); } dpm; /* pageflipping */ struct { @@ -2647,6 +2648,7 @@ void radeon_ring_write(struct radeon_ring *ring, uint32_t v); #define radeon_dpm_force_performance_level(rdev, l) rdev->asic->dpm.force_performance_level((rdev), (l)) #define radeon_dpm_vblank_too_short(rdev) rdev->asic->dpm.vblank_too_short((rdev)) #define radeon_dpm_powergate_uvd(rdev, g) rdev->asic->dpm.powergate_uvd((rdev), (g)) +#define radeon_dpm_enable_bapm(rdev, e) rdev->asic->dpm.enable_bapm((rdev), (e)) /* Common functions */ /* AGP */ diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index 33c88c4038cf..d41ac8a4224d 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -67,7 +67,16 @@ int radeon_pm_get_type_index(struct radeon_device *rdev, void radeon_pm_acpi_event_handler(struct radeon_device *rdev) { - if (rdev->pm.pm_method == PM_METHOD_PROFILE) { + if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) { + mutex_lock(&rdev->pm.mutex); + if (power_supply_is_system_supplied() > 0) + rdev->pm.dpm.ac_power = true; + else + rdev->pm.dpm.ac_power = false; + if (rdev->asic->dpm.enable_bapm) + radeon_dpm_enable_bapm(rdev, rdev->pm.dpm.ac_power); + mutex_unlock(&rdev->pm.mutex); + } else if (rdev->pm.pm_method == PM_METHOD_PROFILE) { if (rdev->pm.profile == PM_PROFILE_AUTO) { mutex_lock(&rdev->pm.mutex); radeon_pm_update_profile(rdev); From 11877060e602d08a5ec8b127c273423d45ddabd9 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 9 Sep 2013 19:19:52 -0400 Subject: [PATCH 051/350] drm/radeon/dpm: add bapm callback for trinity This adds the enable_bapm callback for trinity. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/radeon_asic.c | 1 + drivers/gpu/drm/radeon/radeon_asic.h | 1 + drivers/gpu/drm/radeon/trinity_dpm.c | 14 ++++++++++++++ drivers/gpu/drm/radeon/trinity_dpm.h | 1 + 4 files changed, 17 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c index 7b0917082925..283951467ace 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.c +++ b/drivers/gpu/drm/radeon/radeon_asic.c @@ -1794,6 +1794,7 @@ static struct radeon_asic trinity_asic = { .print_power_state = &trinity_dpm_print_power_state, .debugfs_print_current_performance_level = &trinity_dpm_debugfs_print_current_performance_level, .force_performance_level = &trinity_dpm_force_performance_level, + .enable_bapm = &trinity_dpm_enable_bapm, }, .pflip = { .pre_page_flip = &evergreen_pre_page_flip, diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h index 71b0f0dc2328..7221bb05b51c 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -628,6 +628,7 @@ void trinity_dpm_debugfs_print_current_performance_level(struct radeon_device *r struct seq_file *m); int trinity_dpm_force_performance_level(struct radeon_device *rdev, enum radeon_dpm_forced_level level); +void trinity_dpm_enable_bapm(struct radeon_device *rdev, bool enable); /* DCE6 - SI */ void dce6_bandwidth_update(struct radeon_device *rdev); diff --git a/drivers/gpu/drm/radeon/trinity_dpm.c b/drivers/gpu/drm/radeon/trinity_dpm.c index b1b5b3f5e07b..4beb9992294a 100644 --- a/drivers/gpu/drm/radeon/trinity_dpm.c +++ b/drivers/gpu/drm/radeon/trinity_dpm.c @@ -1068,6 +1068,17 @@ static void trinity_update_requested_ps(struct radeon_device *rdev, pi->requested_rps.ps_priv = &pi->requested_ps; } +void trinity_dpm_enable_bapm(struct radeon_device *rdev, bool enable) +{ + struct trinity_power_info *pi = trinity_get_pi(rdev); + + if (pi->enable_bapm) { + trinity_acquire_mutex(rdev); + trinity_dpm_bapm_enable(rdev, enable); + trinity_release_mutex(rdev); + } +} + int trinity_dpm_enable(struct radeon_device *rdev) { struct trinity_power_info *pi = trinity_get_pi(rdev); @@ -1214,6 +1225,8 @@ int trinity_dpm_set_power_state(struct radeon_device *rdev) trinity_acquire_mutex(rdev); if (pi->enable_dpm) { + if (pi->enable_bapm) + trinity_dpm_bapm_enable(rdev, rdev->pm.dpm.ac_power); trinity_set_uvd_clock_before_set_eng_clock(rdev, new_ps, old_ps); trinity_enable_power_level_0(rdev); trinity_force_level_0(rdev); @@ -1856,6 +1869,7 @@ int trinity_dpm_init(struct radeon_device *rdev) for (i = 0; i < SUMO_MAX_HARDWARE_POWERLEVELS; i++) pi->at[i] = TRINITY_AT_DFLT; + pi->enable_bapm = true; pi->enable_nbps_policy = true; pi->enable_sclk_ds = true; pi->enable_gfx_power_gating = true; diff --git a/drivers/gpu/drm/radeon/trinity_dpm.h b/drivers/gpu/drm/radeon/trinity_dpm.h index 259d9e817c96..c261657750ca 100644 --- a/drivers/gpu/drm/radeon/trinity_dpm.h +++ b/drivers/gpu/drm/radeon/trinity_dpm.h @@ -108,6 +108,7 @@ struct trinity_power_info { bool enable_auto_thermal_throttling; bool enable_dpm; bool enable_sclk_ds; + bool enable_bapm; bool uvd_dpm; struct radeon_ps current_rps; struct trinity_ps current_ps; From b7a5ae97502e104371c7eb3b7b17ae959e50d6f5 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 9 Sep 2013 19:33:08 -0400 Subject: [PATCH 052/350] drm/radeon/dpm: add bapm callback for kb/kv This adds the enable_bapm callback for kb/kv. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/kv_dpm.c | 20 ++++++++++++++++++++ drivers/gpu/drm/radeon/radeon_asic.c | 1 + drivers/gpu/drm/radeon/radeon_asic.h | 1 + 3 files changed, 22 insertions(+) diff --git a/drivers/gpu/drm/radeon/kv_dpm.c b/drivers/gpu/drm/radeon/kv_dpm.c index 92bb998cc611..b98b9c97b732 100644 --- a/drivers/gpu/drm/radeon/kv_dpm.c +++ b/drivers/gpu/drm/radeon/kv_dpm.c @@ -1109,6 +1109,18 @@ static void kv_update_requested_ps(struct radeon_device *rdev, pi->requested_rps.ps_priv = &pi->requested_ps; } +void kv_dpm_enable_bapm(struct radeon_device *rdev, bool enable) +{ + struct kv_power_info *pi = kv_get_pi(rdev); + int ret; + + if (pi->bapm_enable) { + ret = kv_smc_bapm_enable(rdev, enable); + if (ret) + DRM_ERROR("kv_smc_bapm_enable failed\n"); + } +} + int kv_dpm_enable(struct radeon_device *rdev) { struct kv_power_info *pi = kv_get_pi(rdev); @@ -1772,6 +1784,14 @@ int kv_dpm_set_power_state(struct radeon_device *rdev) RADEON_CG_BLOCK_BIF | RADEON_CG_BLOCK_HDP), false); + if (pi->bapm_enable) { + ret = kv_smc_bapm_enable(rdev, rdev->pm.dpm.ac_power); + if (ret) { + DRM_ERROR("kv_smc_bapm_enable failed\n"); + return ret; + } + } + if (rdev->family == CHIP_KABINI) { if (pi->enable_dpm) { kv_set_valid_clock_range(rdev, new_ps); diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c index 283951467ace..5003385a7512 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.c +++ b/drivers/gpu/drm/radeon/radeon_asic.c @@ -2170,6 +2170,7 @@ static struct radeon_asic kv_asic = { .debugfs_print_current_performance_level = &kv_dpm_debugfs_print_current_performance_level, .force_performance_level = &kv_dpm_force_performance_level, .powergate_uvd = &kv_dpm_powergate_uvd, + .enable_bapm = &kv_dpm_enable_bapm, }, .pflip = { .pre_page_flip = &evergreen_pre_page_flip, diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h index 7221bb05b51c..70c29d5e080d 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -785,6 +785,7 @@ void kv_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev, int kv_dpm_force_performance_level(struct radeon_device *rdev, enum radeon_dpm_forced_level level); void kv_dpm_powergate_uvd(struct radeon_device *rdev, bool gate); +void kv_dpm_enable_bapm(struct radeon_device *rdev, bool enable); /* uvd v1.0 */ uint32_t uvd_v1_0_get_rptr(struct radeon_device *rdev, From 7aef2e780b13973ea60aed8c556107dabde6a495 Mon Sep 17 00:00:00 2001 From: Jianpeng Ma Date: Wed, 11 Sep 2013 13:21:07 -0600 Subject: [PATCH 053/350] block: trace all devices plug operation In func blk_queue_bio, if list of plug is empty,it will call blk_trace_plug. If process deal with a single device,it't ok.But if process deal with multi devices,it only trace the first device. Using request_count to judge, it can soleve this problem. In addition, i modify the comment. Signed-off-by: Jianpeng Ma Signed-off-by: Jens Axboe --- block/blk-core.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/block/blk-core.c b/block/blk-core.c index 93a18d1d3da8..91037f74668e 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -1549,11 +1549,9 @@ get_rq: if (plug) { /* * If this is the first request added after a plug, fire - * of a plug trace. If others have been added before, check - * if we have multiple devices in this plug. If so, make a - * note to sort the list before dispatch. + * of a plug trace. */ - if (list_empty(&plug->list)) + if (!request_count) trace_block_plug(q); else { if (request_count >= BLK_MAX_REQUEST_COUNT) { From c1b511eb211a6c72d66f7755d2b30a9a91ef9423 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Thu, 29 Aug 2013 15:21:42 -0700 Subject: [PATCH 054/350] block: Convert kmalloc_node(...GFP_ZERO...) to kzalloc_node(...) Use the helper function instead of __GFP_ZERO. Signed-off-by: Joe Perches Signed-off-by: Jens Axboe --- block/cfq-iosched.c | 2 +- block/deadline-iosched.c | 2 +- block/elevator.c | 2 +- block/genhd.c | 3 +-- 4 files changed, 4 insertions(+), 5 deletions(-) diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index d5bbdcfd0dab..f0468e252ee4 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -4358,7 +4358,7 @@ static int cfq_init_queue(struct request_queue *q, struct elevator_type *e) if (!eq) return -ENOMEM; - cfqd = kmalloc_node(sizeof(*cfqd), GFP_KERNEL | __GFP_ZERO, q->node); + cfqd = kzalloc_node(sizeof(*cfqd), GFP_KERNEL, q->node); if (!cfqd) { kobject_put(&eq->kobj); return -ENOMEM; diff --git a/block/deadline-iosched.c b/block/deadline-iosched.c index 20614a332362..9ef66406c625 100644 --- a/block/deadline-iosched.c +++ b/block/deadline-iosched.c @@ -346,7 +346,7 @@ static int deadline_init_queue(struct request_queue *q, struct elevator_type *e) if (!eq) return -ENOMEM; - dd = kmalloc_node(sizeof(*dd), GFP_KERNEL | __GFP_ZERO, q->node); + dd = kzalloc_node(sizeof(*dd), GFP_KERNEL, q->node); if (!dd) { kobject_put(&eq->kobj); return -ENOMEM; diff --git a/block/elevator.c b/block/elevator.c index 668394d18588..2bcbd8cc14d4 100644 --- a/block/elevator.c +++ b/block/elevator.c @@ -155,7 +155,7 @@ struct elevator_queue *elevator_alloc(struct request_queue *q, { struct elevator_queue *eq; - eq = kmalloc_node(sizeof(*eq), GFP_KERNEL | __GFP_ZERO, q->node); + eq = kzalloc_node(sizeof(*eq), GFP_KERNEL, q->node); if (unlikely(!eq)) goto err; diff --git a/block/genhd.c b/block/genhd.c index dadf42b454a3..791f41943132 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -1252,8 +1252,7 @@ struct gendisk *alloc_disk_node(int minors, int node_id) { struct gendisk *disk; - disk = kmalloc_node(sizeof(struct gendisk), - GFP_KERNEL | __GFP_ZERO, node_id); + disk = kzalloc_node(sizeof(struct gendisk), GFP_KERNEL, node_id); if (disk) { if (!init_part_stats(&disk->part0)) { kfree(disk); From 577cee1e8db6b98b51506e956264b84553426e65 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 28 Aug 2013 14:26:50 -0400 Subject: [PATCH 055/350] blkcg: relocate root_blkg setting and clearing Hello, Jens. The original thread can be read from http://thread.gmane.org/gmane.linux.kernel.cgroups/8937 While it leads to oops, given that it only triggers under specific configurations which aren't common. I don't think it's necessary to backport it through -stable and merging it during the coming merge window should be enough. Thanks! ----- 8< ----- Currently, q->root_blkg and q->root_rl.blkg are set from blkcg_activate_policy() and cleared from blkg_destroy_all(). This doesn't necessarily coincide with the lifetime of the root blkcg_gq leading to the following oops when blkcg is enabled but no policy is activated because __blk_queue_next_rl() malfunctions expecting the root_blkg pointers to be set. BUG: unable to handle kernel NULL pointer dereference at (null) IP: [] __wake_up_common+0x2b/0x90 PGD 60f7a9067 PUD 60f4c9067 PMD 0 Oops: 0000 [#1] SMP DEBUG_PAGEALLOC gsmi: Log Shutdown Reason 0x03 Modules linked in: act_mirred cls_tcindex cls_prioshift sch_dsmark xt_multiport iptable_mangle sata_mv elephant elephant_dev_num cdc_acm uhci_hcd ehci_hcd i2c_d CPU: 9 PID: 41382 Comm: iSCSI-write- Not tainted 3.11.0-dbg-DEV #19 Hardware name: Intel XXX task: ffff88060d16eec0 ti: ffff88060d170000 task.ti: ffff88060d170000 RIP: 0010:[] [] __wake_up_common+0x2b/0x90 RSP: 0000:ffff88060d171818 EFLAGS: 00010096 RAX: 0000000000000082 RBX: ffff880baa3dee60 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff880baa3dee60 RBP: ffff88060d171858 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000002 R12: ffff880baa3dee98 R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000003 FS: 00007f977cba6700(0000) GS:ffff880c79c60000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000000 CR3: 000000060f7a5000 CR4: 00000000000007e0 Stack: 0000000000000082 0000000000000000 ffff88060d171858 ffff880baa3dee60 0000000000000082 0000000000000003 0000000000000000 0000000000000000 ffff88060d171898 ffffffff810c7848 ffff88060d171888 ffff880bde4bc4b8 Call Trace: [] __wake_up+0x48/0x70 [] __blk_drain_queue+0x123/0x190 [] blk_cleanup_queue+0xf5/0x210 [] __scsi_remove_device+0x5a/0xd0 [] scsi_remove_device+0x34/0x50 [] scsi_remove_target+0x16b/0x220 [] __iscsi_unbind_session+0xd1/0x1b0 [] iscsi_remove_session+0xe2/0x1c0 [] iscsi_destroy_session+0x16/0x60 [] iscsi_session_teardown+0xd9/0x100 [] iscsi_sw_tcp_session_destroy+0x5a/0xb0 [] iscsi_if_rx+0x10e8/0x1560 [] netlink_unicast+0x145/0x200 [] netlink_sendmsg+0x303/0x410 [] sock_sendmsg+0xa6/0xd0 [] ___sys_sendmsg+0x38c/0x3a0 [] ? fget_light+0x40/0x160 [] ? fget_light+0x99/0x160 [] ? fget_light+0x40/0x160 [] __sys_sendmsg+0x49/0x90 [] SyS_sendmsg+0x12/0x20 [] system_call_fastpath+0x16/0x1b Code: 66 66 66 66 90 55 48 89 e5 41 57 41 89 f7 41 56 41 89 ce 41 55 41 54 4c 8d 67 38 53 48 83 ec 18 89 55 c4 48 8b 57 38 4c 89 45 c8 <4c> 8b 2a 48 8d 42 e8 49 Fix it by moving r->root_blkg and q->root_rl.blkg setting to blkg_create() and clearing to blkg_destroy() so that they area initialized when a root blkg is created and cleared when destroyed. Reported-and-tested-by: Anatol Pomozov Signed-off-by: Tejun Heo Signed-off-by: Jens Axboe --- block/blk-cgroup.c | 25 +++++++++++++++---------- 1 file changed, 15 insertions(+), 10 deletions(-) diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index 290792a13e3c..db30b6beee72 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -235,8 +235,13 @@ static struct blkcg_gq *blkg_create(struct blkcg *blkcg, blkg->online = true; spin_unlock(&blkcg->lock); - if (!ret) + if (!ret) { + if (blkcg == &blkcg_root) { + q->root_blkg = blkg; + q->root_rl.blkg = blkg; + } return blkg; + } /* @blkg failed fully initialized, use the usual release path */ blkg_put(blkg); @@ -334,6 +339,15 @@ static void blkg_destroy(struct blkcg_gq *blkg) if (rcu_dereference_raw(blkcg->blkg_hint) == blkg) rcu_assign_pointer(blkcg->blkg_hint, NULL); + /* + * If root blkg is destroyed. Just clear the pointer since root_rl + * does not take reference on root blkg. + */ + if (blkcg == &blkcg_root) { + blkg->q->root_blkg = NULL; + blkg->q->root_rl.blkg = NULL; + } + /* * Put the reference taken at the time of creation so that when all * queues are gone, group can be destroyed. @@ -360,13 +374,6 @@ static void blkg_destroy_all(struct request_queue *q) blkg_destroy(blkg); spin_unlock(&blkcg->lock); } - - /* - * root blkg is destroyed. Just clear the pointer since - * root_rl does not take reference on root blkg. - */ - q->root_blkg = NULL; - q->root_rl.blkg = NULL; } /* @@ -973,8 +980,6 @@ int blkcg_activate_policy(struct request_queue *q, ret = PTR_ERR(blkg); goto out_unlock; } - q->root_blkg = blkg; - q->root_rl.blkg = blkg; list_for_each_entry(blkg, &q->blkg_list, q_node) cnt++; From 1f70e079c773b2c5988b0f0b4d314fc0f6c7a1b8 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Wed, 11 Sep 2013 06:56:12 +0800 Subject: [PATCH 056/350] drm/msm: fix return value check in ERR_PTR() In case of error, the function drm_prime_pages_to_sg() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Signed-off-by: Wei Yongjun --- drivers/gpu/drm/msm/msm_gem.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index df0390f5ec58..5999b67ec8f1 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -40,9 +40,9 @@ static struct page **get_pages(struct drm_gem_object *obj) } msm_obj->sgt = drm_prime_pages_to_sg(p, npages); - if (!msm_obj->sgt) { + if (IS_ERR(msm_obj->sgt)) { dev_err(dev->dev, "failed to allocate sgt\n"); - return ERR_PTR(-ENOMEM); + return ERR_CAST(msm_obj->sgt); } msm_obj->pages = p; From f816f272437f3a2be0c9254d4ab8f917950d86a0 Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Wed, 11 Sep 2013 17:34:07 -0400 Subject: [PATCH 057/350] drm/msm: return -EBUSY if bo still active When we CPU_PREP a bo with NOSYNC flag (for example, to implement PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE), an -EBUSY return indicates to userspace that the bo is still busy. Previously it was incorrectly returning 0 in this case. And while we're in there throw in an bit of extra sanity checking in case userspace tries to wait for a bogus fence. Signed-off-by: Rob Clark --- drivers/gpu/drm/msm/msm_drv.c | 48 +++++++++++++++++++++++------------ drivers/gpu/drm/msm/msm_drv.h | 6 +++++ drivers/gpu/drm/msm/msm_gem.c | 6 ++++- 3 files changed, 43 insertions(+), 17 deletions(-) diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 864c9773636b..008d772384c7 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -499,25 +499,41 @@ int msm_wait_fence_interruptable(struct drm_device *dev, uint32_t fence, struct timespec *timeout) { struct msm_drm_private *priv = dev->dev_private; - unsigned long timeout_jiffies = timespec_to_jiffies(timeout); - unsigned long start_jiffies = jiffies; - unsigned long remaining_jiffies; int ret; - if (time_after(start_jiffies, timeout_jiffies)) - remaining_jiffies = 0; - else - remaining_jiffies = timeout_jiffies - start_jiffies; + if (!priv->gpu) + return 0; - ret = wait_event_interruptible_timeout(priv->fence_event, - priv->completed_fence >= fence, - remaining_jiffies); - if (ret == 0) { - DBG("timeout waiting for fence: %u (completed: %u)", - fence, priv->completed_fence); - ret = -ETIMEDOUT; - } else if (ret != -ERESTARTSYS) { - ret = 0; + if (fence > priv->gpu->submitted_fence) { + DRM_ERROR("waiting on invalid fence: %u (of %u)\n", + fence, priv->gpu->submitted_fence); + return -EINVAL; + } + + if (!timeout) { + /* no-wait: */ + ret = fence_completed(dev, fence) ? 0 : -EBUSY; + } else { + unsigned long timeout_jiffies = timespec_to_jiffies(timeout); + unsigned long start_jiffies = jiffies; + unsigned long remaining_jiffies; + + if (time_after(start_jiffies, timeout_jiffies)) + remaining_jiffies = 0; + else + remaining_jiffies = timeout_jiffies - start_jiffies; + + ret = wait_event_interruptible_timeout(priv->fence_event, + fence_completed(dev, fence), + remaining_jiffies); + + if (ret == 0) { + DBG("timeout waiting for fence: %u (completed: %u)", + fence, priv->completed_fence); + ret = -ETIMEDOUT; + } else if (ret != -ERESTARTSYS) { + ret = 0; + } } return ret; diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index 1ea9d46e01bc..df8f1d084bc1 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -191,6 +191,12 @@ u32 msm_readl(const void __iomem *addr); #define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__) #define VERB(fmt, ...) if (0) DRM_DEBUG(fmt"\n", ##__VA_ARGS__) +static inline bool fence_completed(struct drm_device *dev, uint32_t fence) +{ + struct msm_drm_private *priv = dev->dev_private; + return priv->completed_fence >= fence; +} + static inline int align_pitch(int width, int bpp) { int bytespp = (bpp + 7) / 8; diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index 5999b67ec8f1..583286f39299 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -437,12 +437,16 @@ int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, struct msm_gem_object *msm_obj = to_msm_bo(obj); int ret = 0; - if (is_active(msm_obj) && !(op & MSM_PREP_NOSYNC)) { + if (is_active(msm_obj)) { uint32_t fence = 0; + if (op & MSM_PREP_READ) fence = msm_obj->write_fence; if (op & MSM_PREP_WRITE) fence = max(fence, msm_obj->read_fence); + if (op & MSM_PREP_NOSYNC) + timeout = NULL; + ret = msm_wait_fence_interruptable(dev, fence, timeout); } From 6b8819c811c2a80a7e5896b4d1e2580be825d590 Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Wed, 11 Sep 2013 17:14:30 -0400 Subject: [PATCH 058/350] drm/msm: workaround for missing irq Occasionally we seem to miss an IRQ from the ME (microengine). I'm not entirely sure the root cause, but for now we can unwedge things by retiring from the hangcheck timer. Signed-off-by: Rob Clark --- drivers/gpu/drm/msm/msm_gpu.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c index 10cc44324166..7ddcfbebb1f2 100644 --- a/drivers/gpu/drm/msm/msm_gpu.c +++ b/drivers/gpu/drm/msm/msm_gpu.c @@ -230,6 +230,8 @@ static void hangcheck_timer_reset(struct msm_gpu *gpu) static void hangcheck_handler(unsigned long data) { struct msm_gpu *gpu = (struct msm_gpu *)data; + struct drm_device *dev = gpu->dev; + struct msm_drm_private *priv = dev->dev_private; uint32_t fence = gpu->funcs->last_fence(gpu); if (fence != gpu->hangcheck_fence) { @@ -237,8 +239,6 @@ static void hangcheck_handler(unsigned long data) gpu->hangcheck_fence = fence; } else if (fence < gpu->submitted_fence) { /* no progress and not done.. hung! */ - struct drm_device *dev = gpu->dev; - struct msm_drm_private *priv = dev->dev_private; gpu->hangcheck_fence = fence; dev_err(dev->dev, "%s: hangcheck detected gpu lockup!\n", gpu->name); @@ -252,6 +252,9 @@ static void hangcheck_handler(unsigned long data) /* if still more pending work, reset the hangcheck timer: */ if (gpu->submitted_fence > gpu->hangcheck_fence) hangcheck_timer_reset(gpu); + + /* workaround for missing irq: */ + queue_work(priv->wq, &gpu->retire_work); } /* From 1c4a814e35a2fb5500e94ec60370c53a2fb592ac Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Wed, 11 Sep 2013 09:58:49 +0200 Subject: [PATCH 059/350] drm/i915/sdvo: Robustify the dtd<->drm_mode conversions MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We've failed to properly clear out the flags when converting a dtd to a drm mode. For more paranoia just memset the entire structure (and drop the now redundant clears). Also since commit 135c81b8c3c9a70d7b55758c9c2a247a4abb7b64 Author: Daniel Vetter Date: Sun Jul 21 21:37:09 2013 +0200 drm/i915: clean up crtc timings computation we don't update the crtc timings any more properly, so do that again. v2: Remove more redundant clearing, spotted by Ville. v3: Actually make it compile. Oops. v4: Use a temporary structure to fill in the mode and copy it over with drm_mode_copy. This will ensure we don't clobber the mode list or id. Suggested by Ville. Cc: Rodrigo Vivi Cc: Jesse Barnes Cc: Ville Syrjälä Reported-by: Ville Syrjälä Reviewed-by: Ville Syrjälä [danvet: Use the = {}; structure clearing instead of memset as suggested by Ville.] Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_sdvo.c | 61 +++++++++++++++++-------------- 1 file changed, 33 insertions(+), 28 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index 5033c74966aa..49482fd5b76c 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -788,6 +788,8 @@ static void intel_sdvo_get_dtd_from_mode(struct intel_sdvo_dtd *dtd, uint16_t h_sync_offset, v_sync_offset; int mode_clock; + memset(dtd, 0, sizeof(*dtd)); + width = mode->hdisplay; height = mode->vdisplay; @@ -830,48 +832,51 @@ static void intel_sdvo_get_dtd_from_mode(struct intel_sdvo_dtd *dtd, if (mode->flags & DRM_MODE_FLAG_PVSYNC) dtd->part2.dtd_flags |= DTD_FLAG_VSYNC_POSITIVE; - dtd->part2.sdvo_flags = 0; dtd->part2.v_sync_off_high = v_sync_offset & 0xc0; - dtd->part2.reserved = 0; } -static void intel_sdvo_get_mode_from_dtd(struct drm_display_mode * mode, +static void intel_sdvo_get_mode_from_dtd(struct drm_display_mode *pmode, const struct intel_sdvo_dtd *dtd) { - mode->hdisplay = dtd->part1.h_active; - mode->hdisplay += ((dtd->part1.h_high >> 4) & 0x0f) << 8; - mode->hsync_start = mode->hdisplay + dtd->part2.h_sync_off; - mode->hsync_start += (dtd->part2.sync_off_width_high & 0xc0) << 2; - mode->hsync_end = mode->hsync_start + dtd->part2.h_sync_width; - mode->hsync_end += (dtd->part2.sync_off_width_high & 0x30) << 4; - mode->htotal = mode->hdisplay + dtd->part1.h_blank; - mode->htotal += (dtd->part1.h_high & 0xf) << 8; + struct drm_display_mode mode = {}; - mode->vdisplay = dtd->part1.v_active; - mode->vdisplay += ((dtd->part1.v_high >> 4) & 0x0f) << 8; - mode->vsync_start = mode->vdisplay; - mode->vsync_start += (dtd->part2.v_sync_off_width >> 4) & 0xf; - mode->vsync_start += (dtd->part2.sync_off_width_high & 0x0c) << 2; - mode->vsync_start += dtd->part2.v_sync_off_high & 0xc0; - mode->vsync_end = mode->vsync_start + + mode.hdisplay = dtd->part1.h_active; + mode.hdisplay += ((dtd->part1.h_high >> 4) & 0x0f) << 8; + mode.hsync_start = mode.hdisplay + dtd->part2.h_sync_off; + mode.hsync_start += (dtd->part2.sync_off_width_high & 0xc0) << 2; + mode.hsync_end = mode.hsync_start + dtd->part2.h_sync_width; + mode.hsync_end += (dtd->part2.sync_off_width_high & 0x30) << 4; + mode.htotal = mode.hdisplay + dtd->part1.h_blank; + mode.htotal += (dtd->part1.h_high & 0xf) << 8; + + mode.vdisplay = dtd->part1.v_active; + mode.vdisplay += ((dtd->part1.v_high >> 4) & 0x0f) << 8; + mode.vsync_start = mode.vdisplay; + mode.vsync_start += (dtd->part2.v_sync_off_width >> 4) & 0xf; + mode.vsync_start += (dtd->part2.sync_off_width_high & 0x0c) << 2; + mode.vsync_start += dtd->part2.v_sync_off_high & 0xc0; + mode.vsync_end = mode.vsync_start + (dtd->part2.v_sync_off_width & 0xf); - mode->vsync_end += (dtd->part2.sync_off_width_high & 0x3) << 4; - mode->vtotal = mode->vdisplay + dtd->part1.v_blank; - mode->vtotal += (dtd->part1.v_high & 0xf) << 8; + mode.vsync_end += (dtd->part2.sync_off_width_high & 0x3) << 4; + mode.vtotal = mode.vdisplay + dtd->part1.v_blank; + mode.vtotal += (dtd->part1.v_high & 0xf) << 8; - mode->clock = dtd->part1.clock * 10; + mode.clock = dtd->part1.clock * 10; - mode->flags &= ~(DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC); if (dtd->part2.dtd_flags & DTD_FLAG_INTERLACE) - mode->flags |= DRM_MODE_FLAG_INTERLACE; + mode.flags |= DRM_MODE_FLAG_INTERLACE; if (dtd->part2.dtd_flags & DTD_FLAG_HSYNC_POSITIVE) - mode->flags |= DRM_MODE_FLAG_PHSYNC; + mode.flags |= DRM_MODE_FLAG_PHSYNC; else - mode->flags |= DRM_MODE_FLAG_NHSYNC; + mode.flags |= DRM_MODE_FLAG_NHSYNC; if (dtd->part2.dtd_flags & DTD_FLAG_VSYNC_POSITIVE) - mode->flags |= DRM_MODE_FLAG_PVSYNC; + mode.flags |= DRM_MODE_FLAG_PVSYNC; else - mode->flags |= DRM_MODE_FLAG_NVSYNC; + mode.flags |= DRM_MODE_FLAG_NVSYNC; + + drm_mode_set_crtcinfo(&mode, 0); + + drm_mode_copy(pmode, &mode); } static bool intel_sdvo_check_supp_encode(struct intel_sdvo *intel_sdvo) From 0d971748d086f3bf2dcf4094dd92d17ee123f669 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Wed, 11 Sep 2013 09:58:50 +0200 Subject: [PATCH 060/350] drm/i915/dvo: set crtc timings again for panel fixed modes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Yet another regression due to commit 135c81b8c3c9a70d7b55758c9c2a247a4abb7b64 Author: Daniel Vetter Date: Sun Jul 21 21:37:09 2013 +0200 drm/i915: clean up crtc timings computation I'm starting to wonder whether this was worth it ... v2: Actually make it compile. Cc: Jesse Barnes Cc: Ville Syrjälä Reviewed-by: Ville Syrjälä Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_dvo.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c index 406303b509c1..7fa7df546c1e 100644 --- a/drivers/gpu/drm/i915/intel_dvo.c +++ b/drivers/gpu/drm/i915/intel_dvo.c @@ -263,6 +263,8 @@ static bool intel_dvo_compute_config(struct intel_encoder *encoder, C(vtotal); C(clock); #undef C + + drm_mode_set_crtcinfo(adjusted_mode, 0); } if (intel_dvo->dev.dev_ops->mode_fixup) From 2e8378136f28bea960cec643d3fa5d843c9049ec Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 12 Sep 2013 15:31:04 +1000 Subject: [PATCH 061/350] drm/ast: fix the ast open key function When porting from UMS I mistyped this from the wrong place, AST noticed and pointed it out, so we should fix it to be like the X.org driver. Reported-by: Y.C. Chen Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie --- drivers/gpu/drm/ast/ast_drv.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/ast/ast_drv.h b/drivers/gpu/drm/ast/ast_drv.h index 796dbb212a41..8492b68e873c 100644 --- a/drivers/gpu/drm/ast/ast_drv.h +++ b/drivers/gpu/drm/ast/ast_drv.h @@ -177,7 +177,7 @@ uint8_t ast_get_index_reg_mask(struct ast_private *ast, static inline void ast_open_key(struct ast_private *ast) { - ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xA1, 0xFF, 0x04); + ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x80, 0xA8); } #define AST_VIDMEM_SIZE_8M 0x00800000 From 7bd36014460f793c19e7d6c94dab67b0afcfcb7f Mon Sep 17 00:00:00 2001 From: John Stultz Date: Wed, 11 Sep 2013 16:50:56 -0700 Subject: [PATCH 062/350] timekeeping: Fix HRTICK related deadlock from ntp lock changes Gerlando Falauto reported that when HRTICK is enabled, it is possible to trigger system deadlocks. These were hard to reproduce, as HRTICK has been broken in the past, but seemed to be connected to the timekeeping_seq lock. Since seqlock/seqcount's aren't supported w/ lockdep, I added some extra spinlock based locking and triggered the following lockdep output: [ 15.849182] ntpd/4062 is trying to acquire lock: [ 15.849765] (&(&pool->lock)->rlock){..-...}, at: [] __queue_work+0x145/0x480 [ 15.850051] [ 15.850051] but task is already holding lock: [ 15.850051] (timekeeper_lock){-.-.-.}, at: [] do_adjtimex+0x7f/0x100 [ 15.850051] Chain exists of: &(&pool->lock)->rlock --> &p->pi_lock --> timekeeper_lock [ 15.850051] Possible unsafe locking scenario: [ 15.850051] [ 15.850051] CPU0 CPU1 [ 15.850051] ---- ---- [ 15.850051] lock(timekeeper_lock); [ 15.850051] lock(&p->pi_lock); [ 15.850051] lock(timekeeper_lock); [ 15.850051] lock(&(&pool->lock)->rlock); [ 15.850051] [ 15.850051] *** DEADLOCK *** The deadlock was introduced by 06c017fdd4dc48451a ("timekeeping: Hold timekeepering locks in do_adjtimex and hardpps") in 3.10 This patch avoids this deadlock, by moving the call to schedule_delayed_work() outside of the timekeeper lock critical section. Reported-by: Gerlando Falauto Tested-by: Lin Ming Signed-off-by: John Stultz Cc: Mathieu Desnoyers Cc: stable #3.11, 3.10 Link: http://lkml.kernel.org/r/1378943457-27314-1-git-send-email-john.stultz@linaro.org Signed-off-by: Ingo Molnar --- include/linux/timex.h | 1 + kernel/time/ntp.c | 6 ++---- kernel/time/timekeeping.c | 2 ++ 3 files changed, 5 insertions(+), 4 deletions(-) diff --git a/include/linux/timex.h b/include/linux/timex.h index b3726e61368e..dd3edd7dfc94 100644 --- a/include/linux/timex.h +++ b/include/linux/timex.h @@ -141,6 +141,7 @@ extern int do_adjtimex(struct timex *); extern void hardpps(const struct timespec *, const struct timespec *); int read_current_timer(unsigned long *timer_val); +void ntp_notify_cmos_timer(void); /* The clock frequency of the i8253/i8254 PIT */ #define PIT_TICK_RATE 1193182ul diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c index 8f5b3b98577b..bb2215174f05 100644 --- a/kernel/time/ntp.c +++ b/kernel/time/ntp.c @@ -516,13 +516,13 @@ static void sync_cmos_clock(struct work_struct *work) schedule_delayed_work(&sync_cmos_work, timespec_to_jiffies(&next)); } -static void notify_cmos_timer(void) +void ntp_notify_cmos_timer(void) { schedule_delayed_work(&sync_cmos_work, 0); } #else -static inline void notify_cmos_timer(void) { } +void ntp_notify_cmos_timer(void) { } #endif @@ -687,8 +687,6 @@ int __do_adjtimex(struct timex *txc, struct timespec *ts, s32 *time_tai) if (!(time_status & STA_NANO)) txc->time.tv_usec /= NSEC_PER_USEC; - notify_cmos_timer(); - return result; } diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 48b9fffabdc2..947ba25a95a0 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -1703,6 +1703,8 @@ int do_adjtimex(struct timex *txc) write_seqcount_end(&timekeeper_seq); raw_spin_unlock_irqrestore(&timekeeper_lock, flags); + ntp_notify_cmos_timer(); + return ret; } From 3ced8c955e74d319f3e3997f7169c79d524dfd06 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?fran=C3=A7ois=20romieu?= Date: Sun, 8 Sep 2013 01:15:35 +0200 Subject: [PATCH 063/350] r8169: enforce RX_MULTI_EN for the 8168f. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Same narrative as eb2dc35d99028b698cdedba4f5522bc43e576bd2 ("r8169: RxConfig hack for the 8168evl.") regarding AMD IOMMU errors. RTL_GIGA_MAC_VER_36 - 8168f as well - has not been reported to behave the same. Tested-by: David R Tested-by: Frédéric Leroy Cc: Hayes Wang Signed-off-by: Francois Romieu Signed-off-by: David S. Miller --- drivers/net/ethernet/realtek/r8169.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index 6f87f2cde647..3397cee89777 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -4231,6 +4231,7 @@ static void rtl_init_rxcfg(struct rtl8169_private *tp) case RTL_GIGA_MAC_VER_23: case RTL_GIGA_MAC_VER_24: case RTL_GIGA_MAC_VER_34: + case RTL_GIGA_MAC_VER_35: RTL_W32(RxConfig, RX128_INT_EN | RX_MULTI_EN | RX_DMA_BURST); break; case RTL_GIGA_MAC_VER_40: From aea6a64c38725b6fb30738a31695ef81af3079c3 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Wed, 11 Sep 2013 22:09:02 +0800 Subject: [PATCH 064/350] drm/msm: fix potential NULL pointer dereference The dereference to 'pdata' should be moved below the NULL test. Signed-off-by: Wei Yongjun --- drivers/gpu/drm/msm/msm_gpu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c index 7ddcfbebb1f2..3bab937965d1 100644 --- a/drivers/gpu/drm/msm/msm_gpu.c +++ b/drivers/gpu/drm/msm/msm_gpu.c @@ -29,13 +29,14 @@ static void bs_init(struct msm_gpu *gpu, struct platform_device *pdev) { struct drm_device *dev = gpu->dev; - struct kgsl_device_platform_data *pdata = pdev->dev.platform_data; + struct kgsl_device_platform_data *pdata; if (!pdev) { dev_err(dev->dev, "could not find dtv pdata\n"); return; } + pdata = pdev->dev.platform_data; if (pdata->bus_scale_table) { gpu->bsc = msm_bus_scale_register_client(pdata->bus_scale_table); DBG("bus scale client: %08x", gpu->bsc); From 06c939c1f41b1c28bb17fae074ad610e22a01db8 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Mon, 9 Sep 2013 13:26:36 +0200 Subject: [PATCH 065/350] perf/x86/intel: Fix Silvermont offcore masks Fengguang Wu reported: > sparse warnings: (new ones prefixed by >>) > > >> arch/x86/kernel/cpu/perf_event_intel.c:901:9: sparse: constant 0x768005ffff is so big it is long > >> arch/x86/kernel/cpu/perf_event_intel.c:902:9: sparse: constant 0x768005ffff is so big it is long > > vim +901 arch/x86/kernel/cpu/perf_event_intel.c > > 895 }, > 896 }; > 897 > 898 static struct extra_reg intel_slm_extra_regs[] __read_mostly = > 899 { > 900 /* must define OFFCORE_RSP_X first, see intel_fixup_er() */ > > 901 INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x768005ffff, RSP_0), > > 902 INTEL_UEVENT_EXTRA_REG(0x02b7, MSR_OFFCORE_RSP_1, 0x768005ffff, RSP_1), > 903 EVENT_EXTRA_END > 904 }; > 905 Extend those constants to 64 bits. Reported-by: fengguang.wu@intel.com Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/20130909112636.GQ31370@twins.programming.kicks-ass.net Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/perf_event_intel.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c index c62d88396ad5..9db76c31b3c3 100644 --- a/arch/x86/kernel/cpu/perf_event_intel.c +++ b/arch/x86/kernel/cpu/perf_event_intel.c @@ -899,8 +899,8 @@ static __initconst const u64 atom_hw_cache_event_ids static struct extra_reg intel_slm_extra_regs[] __read_mostly = { /* must define OFFCORE_RSP_X first, see intel_fixup_er() */ - INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x768005ffff, RSP_0), - INTEL_UEVENT_EXTRA_REG(0x02b7, MSR_OFFCORE_RSP_1, 0x768005ffff, RSP_1), + INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x768005ffffull, RSP_0), + INTEL_UEVENT_EXTRA_REG(0x02b7, MSR_OFFCORE_RSP_1, 0x768005ffffull, RSP_1), EVENT_EXTRA_END }; From 6c9a27f5da9609fca46cb2b183724531b48f71ad Mon Sep 17 00:00:00 2001 From: Daisuke Nishimura Date: Tue, 10 Sep 2013 18:16:36 +0900 Subject: [PATCH 066/350] sched/fair: Fix small race where child->se.parent,cfs_rq might point to invalid ones There is a small race between copy_process() and cgroup_attach_task() where child->se.parent,cfs_rq points to invalid (old) ones. parent doing fork() | someone moving the parent to another cgroup -------------------------------+--------------------------------------------- copy_process() + dup_task_struct() -> parent->se is copied to child->se. se.parent,cfs_rq of them point to old ones. cgroup_attach_task() + cgroup_task_migrate() -> parent->cgroup is updated. + cpu_cgroup_attach() + sched_move_task() + task_move_group_fair() +- set_task_rq() -> se.parent,cfs_rq of parent are updated. + cgroup_fork() -> parent->cgroup is copied to child->cgroup. (*1) + sched_fork() + task_fork_fair() -> se.parent,cfs_rq of child are accessed while they point to old ones. (*2) In the worst case, this bug can lead to "use-after-free" and cause a panic, because it's new cgroup's refcount that is incremented at (*1), so the old cgroup(and related data) can be freed before (*2). In fact, a panic caused by this bug was originally caught in RHEL6.4. BUG: unable to handle kernel NULL pointer dereference at (null) IP: [] sched_slice+0x6e/0xa0 [...] Call Trace: [] place_entity+0x75/0xa0 [] task_fork_fair+0xaa/0x160 [] sched_fork+0x6b/0x140 [] copy_process+0x5b2/0x1450 [] ? wake_up_new_task+0xd9/0x130 [] do_fork+0x94/0x460 [] ? sys_wait4+0xae/0x100 [] sys_clone+0x28/0x30 [] stub_clone+0x13/0x20 [] ? system_call_fastpath+0x16/0x1b Signed-off-by: Daisuke Nishimura Signed-off-by: Peter Zijlstra Cc: Link: http://lkml.kernel.org/r/039601ceae06$733d3130$59b79390$@mxp.nes.nec.co.jp Signed-off-by: Ingo Molnar --- kernel/sched/fair.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 9b3fe1cd8f40..11cd13667359 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -5928,11 +5928,15 @@ static void task_fork_fair(struct task_struct *p) cfs_rq = task_cfs_rq(current); curr = cfs_rq->curr; - if (unlikely(task_cpu(p) != this_cpu)) { - rcu_read_lock(); - __set_task_cpu(p, this_cpu); - rcu_read_unlock(); - } + /* + * Not only the cpu but also the task_group of the parent might have + * been changed after parent->se.parent,cfs_rq were copied to + * child->se.parent,cfs_rq. So call __set_task_cpu() to make those + * of child point to valid ones. + */ + rcu_read_lock(); + __set_task_cpu(p, this_cpu); + rcu_read_unlock(); update_curr(cfs_rq); From fc840914e9b07ab4685c195e1e54e58de4f84c03 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Mon, 9 Sep 2013 13:01:41 +0200 Subject: [PATCH 067/350] sched/debug: Take PID namespace into account Emmanuel reported that /proc/sched_debug didn't report the right PIDs when using namespaces, cure this. Reported-by: Emmanuel Deloget Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/20130909110141.GM31370@twins.programming.kicks-ass.net Signed-off-by: Ingo Molnar --- kernel/sched/debug.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c index e076bddd4c66..196559994f7c 100644 --- a/kernel/sched/debug.c +++ b/kernel/sched/debug.c @@ -124,7 +124,7 @@ print_task(struct seq_file *m, struct rq *rq, struct task_struct *p) SEQ_printf(m, " "); SEQ_printf(m, "%15s %5d %9Ld.%06ld %9Ld %5d ", - p->comm, p->pid, + p->comm, task_pid_nr(p), SPLIT_NS(p->se.vruntime), (long long)(p->nvcsw + p->nivcsw), p->prio); @@ -289,7 +289,7 @@ do { \ P(nr_load_updates); P(nr_uninterruptible); PN(next_balance); - P(curr->pid); + SEQ_printf(m, " .%-30s: %ld\n", "curr->pid", (long)(task_pid_nr(rq->curr))); PN(clock); P(cpu_load[0]); P(cpu_load[1]); @@ -492,7 +492,7 @@ void proc_sched_show_task(struct task_struct *p, struct seq_file *m) { unsigned long nr_switches; - SEQ_printf(m, "%s (%d, #threads: %d)\n", p->comm, p->pid, + SEQ_printf(m, "%s (%d, #threads: %d)\n", p->comm, task_pid_nr(p), get_nr_threads(p)); SEQ_printf(m, "---------------------------------------------------------" From 3b524d60943a2f9ee1194323ff9d5ee01a4d1ce1 Mon Sep 17 00:00:00 2001 From: Li Bin Date: Mon, 9 Sep 2013 14:05:40 +0800 Subject: [PATCH 068/350] sched/Documentation: Update sched-design-CFS.txt documentation 2bd2d6f2dc ("sched: Replace use of entity_key()") had remove the entity_key() which function is to subtract a tasks vruntime by its groups minvruntime as the rbtree key. The phrase "there is a subtraction using rq->cfs.min_vruntime to account for possible wraparounds" in documentation feels strange and meaningless. So remove it. Signed-off-by: Li Bin Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/1378706740-7500-1-git-send-email-huawei.libin@huawei.com Signed-off-by: Ingo Molnar --- Documentation/scheduler/sched-design-CFS.txt | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/Documentation/scheduler/sched-design-CFS.txt b/Documentation/scheduler/sched-design-CFS.txt index d529e02d928d..f14f49304222 100644 --- a/Documentation/scheduler/sched-design-CFS.txt +++ b/Documentation/scheduler/sched-design-CFS.txt @@ -66,9 +66,7 @@ rq->cfs.load value, which is the sum of the weights of the tasks queued on the runqueue. CFS maintains a time-ordered rbtree, where all runnable tasks are sorted by the -p->se.vruntime key (there is a subtraction using rq->cfs.min_vruntime to -account for possible wraparounds). CFS picks the "leftmost" task from this -tree and sticks to it. +p->se.vruntime key. CFS picks the "leftmost" task from this tree and sticks to it. As the system progresses forwards, the executed tasks are put into the tree more and more to the right --- slowly but surely giving a chance for every task to become the "leftmost task" and thus get on the CPU within a deterministic From bb1d18d1ad6e216535b994d68097ae107f4f35fb Mon Sep 17 00:00:00 2001 From: Carolyn Wyborny Date: Tue, 10 Sep 2013 11:57:16 -0700 Subject: [PATCH 069/350] igb: Add additional get_phy_id call for i354 devices This patch fixes a problem where some ports can fail to initialize on a cold boot. This patch adds an additional call to read the PHY id for i354 devices in order workaround the hardware problem. Signed-off-by: Carolyn Wyborny Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ethernet/intel/igb/e1000_82575.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/ethernet/intel/igb/e1000_82575.c b/drivers/net/ethernet/intel/igb/e1000_82575.c index 79b58353d849..47c2d10df826 100644 --- a/drivers/net/ethernet/intel/igb/e1000_82575.c +++ b/drivers/net/ethernet/intel/igb/e1000_82575.c @@ -719,6 +719,10 @@ static s32 igb_get_phy_id_82575(struct e1000_hw *hw) u32 ctrl_ext; u32 mdic; + /* Extra read required for some PHY's on i354 */ + if (hw->mac.type == e1000_i354) + igb_get_phy_id(hw); + /* For SGMII PHYs, we try the list of possible addresses until * we find one that works. For non-SGMII PHYs * (e.g. integrated copper PHYs), an address of 1 should From c7cb020d0b670428eddd9702dfdc5ff0a48de653 Mon Sep 17 00:00:00 2001 From: "Fujinaka, Todd" Date: Tue, 10 Sep 2013 11:57:17 -0700 Subject: [PATCH 070/350] igb: Read flow control for i350 from correct EEPROM section Flow control is defined in the four EEPROM sections but the driver only reads from section 0. Signed-off-by: Todd Fujinaka Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ethernet/intel/igb/e1000_mac.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/igb/e1000_mac.c b/drivers/net/ethernet/intel/igb/e1000_mac.c index f0dfd41dd4bd..298f0ed50670 100644 --- a/drivers/net/ethernet/intel/igb/e1000_mac.c +++ b/drivers/net/ethernet/intel/igb/e1000_mac.c @@ -712,6 +712,7 @@ static s32 igb_set_fc_watermarks(struct e1000_hw *hw) static s32 igb_set_default_fc(struct e1000_hw *hw) { s32 ret_val = 0; + u16 lan_offset; u16 nvm_data; /* Read and store word 0x0F of the EEPROM. This word contains bits @@ -722,7 +723,14 @@ static s32 igb_set_default_fc(struct e1000_hw *hw) * control setting, then the variable hw->fc will * be initialized based on a value in the EEPROM. */ - ret_val = hw->nvm.ops.read(hw, NVM_INIT_CONTROL2_REG, 1, &nvm_data); + if (hw->mac.type == e1000_i350) { + lan_offset = NVM_82580_LAN_FUNC_OFFSET(hw->bus.func); + ret_val = hw->nvm.ops.read(hw, NVM_INIT_CONTROL2_REG + + lan_offset, 1, &nvm_data); + } else { + ret_val = hw->nvm.ops.read(hw, NVM_INIT_CONTROL2_REG, + 1, &nvm_data); + } if (ret_val) { hw_dbg("NVM Read Error\n"); From 571c608d06df2d50233263d233a32edab1842865 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Thu, 12 Sep 2013 17:57:28 +0200 Subject: [PATCH 071/350] drm/i915: kill set_need_resched This is just a remnant from the old days when our reset handling was horribly racy, suffered from terribly locking issues and often happily live-locked. Those days are now gone so we can drop the hacks and just rip the reschedule-point out. Reported-by: Peter Zijlstra Cc: Peter Zijlstra Cc: Linux Kernel Mailing List Reviewed-by: Chris Wilson Acked-by: Peter Zijlstra Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_gem.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index d9e337feef14..f2a546ef6870 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1390,14 +1390,11 @@ out: if (i915_terminally_wedged(&dev_priv->gpu_error)) return VM_FAULT_SIGBUS; case -EAGAIN: - /* Give the error handler a chance to run and move the - * objects off the GPU active list. Next time we service the - * fault, we should be able to transition the page into the - * GTT without touching the GPU (and so avoid further - * EIO/EGAIN). If the GPU is wedged, then there is no issue - * with coherency, just lost writes. + /* + * EAGAIN means the gpu is hung and we'll wait for the error + * handler to reset everything when re-faulting in + * i915_mutex_lock_interruptible. */ - set_need_resched(); case 0: case -ERESTARTSYS: case -EINTR: From b0dd663b60944a3ce86430fa35549fb37968bda0 Mon Sep 17 00:00:00 2001 From: Sonic Zhang Date: Wed, 11 Sep 2013 11:31:53 +0800 Subject: [PATCH 072/350] netpoll: Should handle ETH_P_ARP other than ETH_P_IP in netpoll_neigh_reply The received ARP request type in the Ethernet packet head is ETH_P_ARP other than ETH_P_IP. [ Bug introduced by commit b7394d2429c198b1da3d46ac39192e891029ec0f ("netpoll: prepare for ipv6") ] Signed-off-by: Sonic Zhang Signed-off-by: David S. Miller --- net/core/netpoll.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/core/netpoll.c b/net/core/netpoll.c index 2c637e9a0b27..c3c7b27c112d 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -550,7 +550,7 @@ static void netpoll_neigh_reply(struct sk_buff *skb, struct netpoll_info *npinfo return; proto = ntohs(eth_hdr(skb)->h_proto); - if (proto == ETH_P_IP) { + if (proto == ETH_P_ARP) { struct arphdr *arp; unsigned char *arp_ptr; /* No arp on this interface */ From a9677bc024dcaafcf36c1cc4b0706b87be26ee5f Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Tue, 10 Sep 2013 21:39:11 -0700 Subject: [PATCH 073/350] xen-netback: fix possible format string flaw This makes sure a format string cannot accidentally leak into the kthread_run() call. Signed-off-by: Kees Cook Acked-by: Ian Campbell Signed-off-by: David S. Miller --- drivers/net/xen-netback/interface.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c index 625c6f49cfba..77fee1d51fb2 100644 --- a/drivers/net/xen-netback/interface.c +++ b/drivers/net/xen-netback/interface.c @@ -406,7 +406,7 @@ int xenvif_connect(struct xenvif *vif, unsigned long tx_ring_ref, init_waitqueue_head(&vif->wq); vif->task = kthread_create(xenvif_kthread, - (void *)vif, vif->dev->name); + (void *)vif, "%s", vif->dev->name); if (IS_ERR(vif->task)) { pr_warn("Could not allocate kthread for %s\n", vif->dev->name); err = PTR_ERR(vif->task); From 662ca437e714caaab855b12415d6ffd815985bc0 Mon Sep 17 00:00:00 2001 From: Jason Wang Date: Wed, 11 Sep 2013 18:09:48 +0800 Subject: [PATCH 074/350] tuntap: correctly handle error in tun_set_iff() Commit c8d68e6be1c3b242f1c598595830890b65cea64a (tuntap: multiqueue support) only call free_netdev() on error in tun_set_iff(). This causes several issues: - memory of tun security were leaked - use after free since the flow gc timer was not deleted and the tfile were not detached This patch solves the above issues. Reported-by: Wannes Rombouts Cc: Michael S. Tsirkin Signed-off-by: Jason Wang Acked-by: Michael S. Tsirkin Signed-off-by: David S. Miller --- drivers/net/tun.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/net/tun.c b/drivers/net/tun.c index a639de8401f8..807815fc9968 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1641,11 +1641,11 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr) INIT_LIST_HEAD(&tun->disabled); err = tun_attach(tun, file, false); if (err < 0) - goto err_free_dev; + goto err_free_flow; err = register_netdevice(tun->dev); if (err < 0) - goto err_free_dev; + goto err_detach; if (device_create_file(&tun->dev->dev, &dev_attr_tun_flags) || device_create_file(&tun->dev->dev, &dev_attr_owner) || @@ -1689,7 +1689,12 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr) strcpy(ifr->ifr_name, tun->dev->name); return 0; - err_free_dev: +err_detach: + tun_detach_all(dev); +err_free_flow: + tun_flow_uninit(tun); + security_tun_dev_free_security(tun->security); +err_free_dev: free_netdev(dev); return err; } From 95ee62083cb6453e056562d91f597552021e6ae7 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Wed, 11 Sep 2013 16:58:36 +0200 Subject: [PATCH 075/350] net: sctp: fix ipv6 ipsec encryption bug in sctp_v6_xmit Alan Chester reported an issue with IPv6 on SCTP that IPsec traffic is not being encrypted, whereas on IPv4 it is. Setting up an AH + ESP transport does not seem to have the desired effect: SCTP + IPv4: 22:14:20.809645 IP (tos 0x2,ECT(0), ttl 64, id 0, offset 0, flags [DF], proto AH (51), length 116) 192.168.0.2 > 192.168.0.5: AH(spi=0x00000042,sumlen=16,seq=0x1): ESP(spi=0x00000044,seq=0x1), length 72 22:14:20.813270 IP (tos 0x2,ECT(0), ttl 64, id 0, offset 0, flags [DF], proto AH (51), length 340) 192.168.0.5 > 192.168.0.2: AH(spi=0x00000043,sumlen=16,seq=0x1): SCTP + IPv6: 22:31:19.215029 IP6 (class 0x02, hlim 64, next-header SCTP (132) payload length: 364) fe80::222:15ff:fe87:7fc.3333 > fe80::92e6:baff:fe0d:5a54.36767: sctp 1) [INIT ACK] [init tag: 747759530] [rwnd: 62464] [OS: 10] [MIS: 10] Moreover, Alan says: This problem was seen with both Racoon and Racoon2. Other people have seen this with OpenSwan. When IPsec is configured to encrypt all upper layer protocols the SCTP connection does not initialize. After using Wireshark to follow packets, this is because the SCTP packet leaves Box A unencrypted and Box B believes all upper layer protocols are to be encrypted so it drops this packet, causing the SCTP connection to fail to initialize. When IPsec is configured to encrypt just SCTP, the SCTP packets are observed unencrypted. In fact, using `socat sctp6-listen:3333 -` on one end and transferring "plaintext" string on the other end, results in cleartext on the wire where SCTP eventually does not report any errors, thus in the latter case that Alan reports, the non-paranoid user might think he's communicating over an encrypted transport on SCTP although he's not (tcpdump ... -X): ... 0x0030: 5d70 8e1a 0003 001a 177d eb6c 0000 0000 ]p.......}.l.... 0x0040: 0000 0000 706c 6169 6e74 6578 740a 0000 ....plaintext... Only in /proc/net/xfrm_stat we can see XfrmInTmplMismatch increasing on the receiver side. Initial follow-up analysis from Alan's bug report was done by Alexey Dobriyan. Also thanks to Vlad Yasevich for feedback on this. SCTP has its own implementation of sctp_v6_xmit() not calling inet6_csk_xmit(). This has the implication that it probably never really got updated along with changes in inet6_csk_xmit() and therefore does not seem to invoke xfrm handlers. SCTP's IPv4 xmit however, properly calls ip_queue_xmit() to do the work. Since a call to inet6_csk_xmit() would solve this problem, but result in unecessary route lookups, let us just use the cached flowi6 instead that we got through sctp_v6_get_dst(). Since all SCTP packets are being sent through sctp_packet_transmit(), we do the route lookup / flow caching in sctp_transport_route(), hold it in tp->dst and skb_dst_set() right after that. If we would alter fl6->daddr in sctp_v6_xmit() to np->opt->srcrt, we possibly could run into the same effect of not having xfrm layer pick it up, hence, use fl6_update_dst() in sctp_v6_get_dst() instead to get the correct source routed dst entry, which we assign to the skb. Also source address routing example from 625034113 ("sctp: fix sctp to work with ipv6 source address routing") still works with this patch! Nevertheless, in RFC5095 it is actually 'recommended' to not use that anyway due to traffic amplification [1]. So it seems we're not supposed to do that anyway in sctp_v6_xmit(). Moreover, if we overwrite the flow destination here, the lower IPv6 layer will be unable to put the correct destination address into IP header, as routing header is added in ipv6_push_nfrag_opts() but then probably with wrong final destination. Things aside, result of this patch is that we do not have any XfrmInTmplMismatch increase plus on the wire with this patch it now looks like: SCTP + IPv6: 08:17:47.074080 IP6 2620:52:0:102f:7a2b:cbff:fe27:1b0a > 2620:52:0:102f:213:72ff:fe32:7eba: AH(spi=0x00005fb4,seq=0x1): ESP(spi=0x00005fb5,seq=0x1), length 72 08:17:47.074264 IP6 2620:52:0:102f:213:72ff:fe32:7eba > 2620:52:0:102f:7a2b:cbff:fe27:1b0a: AH(spi=0x00003d54,seq=0x1): ESP(spi=0x00003d55,seq=0x1), length 296 This fixes Kernel Bugzilla 24412. This security issue seems to be present since 2.6.18 kernels. Lets just hope some big passive adversary in the wild didn't have its fun with that. lksctp-tools IPv6 regression test suite passes as well with this patch. [1] http://www.secdev.org/conf/IPv6_RH_security-csw07.pdf Reported-by: Alan Chester Reported-by: Alexey Dobriyan Signed-off-by: Daniel Borkmann Cc: Steffen Klassert Cc: Hannes Frederic Sowa Acked-by: Vlad Yasevich Signed-off-by: David S. Miller --- net/sctp/ipv6.c | 42 +++++++++++++----------------------------- 1 file changed, 13 insertions(+), 29 deletions(-) diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c index da613ceae28c..4f52e2ce263d 100644 --- a/net/sctp/ipv6.c +++ b/net/sctp/ipv6.c @@ -204,44 +204,23 @@ out: in6_dev_put(idev); } -/* Based on tcp_v6_xmit() in tcp_ipv6.c. */ static int sctp_v6_xmit(struct sk_buff *skb, struct sctp_transport *transport) { struct sock *sk = skb->sk; struct ipv6_pinfo *np = inet6_sk(sk); - struct flowi6 fl6; - - memset(&fl6, 0, sizeof(fl6)); - - fl6.flowi6_proto = sk->sk_protocol; - - /* Fill in the dest address from the route entry passed with the skb - * and the source address from the transport. - */ - fl6.daddr = transport->ipaddr.v6.sin6_addr; - fl6.saddr = transport->saddr.v6.sin6_addr; - - fl6.flowlabel = np->flow_label; - IP6_ECN_flow_xmit(sk, fl6.flowlabel); - if (ipv6_addr_type(&fl6.saddr) & IPV6_ADDR_LINKLOCAL) - fl6.flowi6_oif = transport->saddr.v6.sin6_scope_id; - else - fl6.flowi6_oif = sk->sk_bound_dev_if; - - if (np->opt && np->opt->srcrt) { - struct rt0_hdr *rt0 = (struct rt0_hdr *) np->opt->srcrt; - fl6.daddr = *rt0->addr; - } + struct flowi6 *fl6 = &transport->fl.u.ip6; pr_debug("%s: skb:%p, len:%d, src:%pI6 dst:%pI6\n", __func__, skb, - skb->len, &fl6.saddr, &fl6.daddr); + skb->len, &fl6->saddr, &fl6->daddr); - SCTP_INC_STATS(sock_net(sk), SCTP_MIB_OUTSCTPPACKS); + IP6_ECN_flow_xmit(sk, fl6->flowlabel); if (!(transport->param_flags & SPP_PMTUD_ENABLE)) skb->local_df = 1; - return ip6_xmit(sk, skb, &fl6, np->opt, np->tclass); + SCTP_INC_STATS(sock_net(sk), SCTP_MIB_OUTSCTPPACKS); + + return ip6_xmit(sk, skb, fl6, np->opt, np->tclass); } /* Returns the dst cache entry for the given source and destination ip @@ -254,10 +233,12 @@ static void sctp_v6_get_dst(struct sctp_transport *t, union sctp_addr *saddr, struct dst_entry *dst = NULL; struct flowi6 *fl6 = &fl->u.ip6; struct sctp_bind_addr *bp; + struct ipv6_pinfo *np = inet6_sk(sk); struct sctp_sockaddr_entry *laddr; union sctp_addr *baddr = NULL; union sctp_addr *daddr = &t->ipaddr; union sctp_addr dst_saddr; + struct in6_addr *final_p, final; __u8 matchlen = 0; __u8 bmatchlen; sctp_scope_t scope; @@ -281,7 +262,8 @@ static void sctp_v6_get_dst(struct sctp_transport *t, union sctp_addr *saddr, pr_debug("src=%pI6 - ", &fl6->saddr); } - dst = ip6_dst_lookup_flow(sk, fl6, NULL, false); + final_p = fl6_update_dst(fl6, np->opt, &final); + dst = ip6_dst_lookup_flow(sk, fl6, final_p, false); if (!asoc || saddr) goto out; @@ -333,10 +315,12 @@ static void sctp_v6_get_dst(struct sctp_transport *t, union sctp_addr *saddr, } } rcu_read_unlock(); + if (baddr) { fl6->saddr = baddr->v6.sin6_addr; fl6->fl6_sport = baddr->v6.sin6_port; - dst = ip6_dst_lookup_flow(sk, fl6, NULL, false); + final_p = fl6_update_dst(fl6, np->opt, &final); + dst = ip6_dst_lookup_flow(sk, fl6, final_p, false); } out: From 300cf9b93f74c3d969a0ad50bdac65416107c44c Mon Sep 17 00:00:00 2001 From: Nithin Sujir Date: Thu, 12 Sep 2013 14:01:31 -0700 Subject: [PATCH 076/350] tg3: Expand led off fix to include 5720 Commit 989038e217e94161862a959e82f9a1ecf8dda152 ("tg3: Don't turn off led on 5719 serdes port 0") added code to skip turning led off on port 0 of the 5719 since it powered down other ports. This workaround needs to be enabled on the 5720 as well. Cc: stable@vger.kernel.org Signed-off-by: Nithin Nayak Sujir Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/tg3.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index 5701f3d1a169..9011ea0f5207 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -3034,6 +3034,7 @@ static bool tg3_phy_led_bug(struct tg3 *tp) { switch (tg3_asic_rev(tp)) { case ASIC_REV_5719: + case ASIC_REV_5720: if ((tp->phy_flags & TG3_PHYFLG_MII_SERDES) && !tp->pci_fn) return true; From 6e43fc04a6bc357d260583b8440882f28069207f Mon Sep 17 00:00:00 2001 From: David Vrabel Date: Wed, 11 Sep 2013 14:52:48 +0100 Subject: [PATCH 077/350] xen-netback: count number required slots for an skb more carefully When a VM is providing an iSCSI target and the LUN is used by the backend domain, the generated skbs for direct I/O writes to the disk have large, multi-page skb->data but no frags. With some lengths and starting offsets, xen_netbk_count_skb_slots() would be one short because the simple calculation of DIV_ROUND_UP(skb_headlen(), PAGE_SIZE) was not accounting for the decisions made by start_new_rx_buffer() which does not guarantee responses are fully packed. For example, a skb with length < 2 pages but which spans 3 pages would be counted as requiring 2 slots but would actually use 3 slots. skb->data: | 1111|222222222222|3333 | Fully packed, this would need 2 slots: |111122222222|22223333 | But because the 2nd page wholy fits into a slot it is not split across slots and goes into a slot of its own: |1111 |222222222222|3333 | Miscounting the number of slots means netback may push more responses than the number of available requests. This will cause the frontend to get very confused and report "Too many frags/slots". The frontend never recovers and will eventually BUG. Fix this by counting the number of required slots more carefully. In xen_netbk_count_skb_slots(), more closely follow the algorithm used by xen_netbk_gop_skb() by introducing xen_netbk_count_frag_slots() which is the dry-run equivalent of netbk_gop_frag_copy(). Signed-off-by: David Vrabel Acked-by: Ian Campbell Signed-off-by: David S. Miller --- drivers/net/xen-netback/netback.c | 96 +++++++++++++++++++++---------- 1 file changed, 65 insertions(+), 31 deletions(-) diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c index 956130c70036..f3e591c611de 100644 --- a/drivers/net/xen-netback/netback.c +++ b/drivers/net/xen-netback/netback.c @@ -212,6 +212,49 @@ static bool start_new_rx_buffer(int offset, unsigned long size, int head) return false; } +struct xenvif_count_slot_state { + unsigned long copy_off; + bool head; +}; + +unsigned int xenvif_count_frag_slots(struct xenvif *vif, + unsigned long offset, unsigned long size, + struct xenvif_count_slot_state *state) +{ + unsigned count = 0; + + offset &= ~PAGE_MASK; + + while (size > 0) { + unsigned long bytes; + + bytes = PAGE_SIZE - offset; + + if (bytes > size) + bytes = size; + + if (start_new_rx_buffer(state->copy_off, bytes, state->head)) { + count++; + state->copy_off = 0; + } + + if (state->copy_off + bytes > MAX_BUFFER_OFFSET) + bytes = MAX_BUFFER_OFFSET - state->copy_off; + + state->copy_off += bytes; + + offset += bytes; + size -= bytes; + + if (offset == PAGE_SIZE) + offset = 0; + + state->head = false; + } + + return count; +} + /* * Figure out how many ring slots we're going to need to send @skb to * the guest. This function is essentially a dry run of @@ -219,48 +262,39 @@ static bool start_new_rx_buffer(int offset, unsigned long size, int head) */ unsigned int xenvif_count_skb_slots(struct xenvif *vif, struct sk_buff *skb) { + struct xenvif_count_slot_state state; unsigned int count; - int i, copy_off; + unsigned char *data; + unsigned i; - count = DIV_ROUND_UP(skb_headlen(skb), PAGE_SIZE); + state.head = true; + state.copy_off = 0; - copy_off = skb_headlen(skb) % PAGE_SIZE; + /* Slot for the first (partial) page of data. */ + count = 1; + /* Need a slot for the GSO prefix for GSO extra data? */ if (skb_shinfo(skb)->gso_size) count++; + data = skb->data; + while (data < skb_tail_pointer(skb)) { + unsigned long offset = offset_in_page(data); + unsigned long size = PAGE_SIZE - offset; + + if (data + size > skb_tail_pointer(skb)) + size = skb_tail_pointer(skb) - data; + + count += xenvif_count_frag_slots(vif, offset, size, &state); + + data += size; + } + for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { unsigned long size = skb_frag_size(&skb_shinfo(skb)->frags[i]); unsigned long offset = skb_shinfo(skb)->frags[i].page_offset; - unsigned long bytes; - offset &= ~PAGE_MASK; - - while (size > 0) { - BUG_ON(offset >= PAGE_SIZE); - BUG_ON(copy_off > MAX_BUFFER_OFFSET); - - bytes = PAGE_SIZE - offset; - - if (bytes > size) - bytes = size; - - if (start_new_rx_buffer(copy_off, bytes, 0)) { - count++; - copy_off = 0; - } - - if (copy_off + bytes > MAX_BUFFER_OFFSET) - bytes = MAX_BUFFER_OFFSET - copy_off; - - copy_off += bytes; - - offset += bytes; - size -= bytes; - - if (offset == PAGE_SIZE) - offset = 0; - } + count += xenvif_count_frag_slots(vif, offset, size, &state); } return count; } From 63aca0f7fa4c9e098fb5b6a24798b5f060e9de08 Mon Sep 17 00:00:00 2001 From: Michael Opdenacker Date: Thu, 12 Sep 2013 05:35:43 +0200 Subject: [PATCH 078/350] bfin_mac: remove deprecated IRQF_DISABLED This patch proposes to remove the IRQF_DISABLED flag from drivers/net/ethernet/adi/bfin_mac.c. It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker Reviewed-by: Jingoo Han Signed-off-by: David S. Miller --- drivers/net/ethernet/adi/bfin_mac.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/adi/bfin_mac.c b/drivers/net/ethernet/adi/bfin_mac.c index e66684a438f5..75fb1d20d6fd 100644 --- a/drivers/net/ethernet/adi/bfin_mac.c +++ b/drivers/net/ethernet/adi/bfin_mac.c @@ -530,7 +530,7 @@ static int bfin_mac_ethtool_setwol(struct net_device *dev, if (lp->wol && !lp->irq_wake_requested) { /* register wake irq handler */ rc = request_irq(IRQ_MAC_WAKEDET, bfin_mac_wake_interrupt, - IRQF_DISABLED, "EMAC_WAKE", dev); + 0, "EMAC_WAKE", dev); if (rc) return rc; lp->irq_wake_requested = true; @@ -1686,7 +1686,7 @@ static int bfin_mac_probe(struct platform_device *pdev) /* now, enable interrupts */ /* register irq handler */ rc = request_irq(IRQ_MAC_RX, bfin_mac_interrupt, - IRQF_DISABLED, "EMAC_RX", ndev); + 0, "EMAC_RX", ndev); if (rc) { dev_err(&pdev->dev, "Cannot request Blackfin MAC RX IRQ!\n"); rc = -EBUSY; From 46c915f84f6671600391c15bad9e8d084ed55f37 Mon Sep 17 00:00:00 2001 From: Michael Opdenacker Date: Thu, 12 Sep 2013 05:46:11 +0200 Subject: [PATCH 079/350] ehea: remove deprecated IRQF_DISABLED This patch proposes to remove the IRQF_DISABLED flag from drivers/net/ethernet/ibm/ehea/ehea_main.c It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker Acked-by: Thadeu Lima de Souza Cascardo Signed-off-by: David S. Miller --- drivers/net/ethernet/ibm/ehea/ehea_main.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/ibm/ehea/ehea_main.c b/drivers/net/ethernet/ibm/ehea/ehea_main.c index 35853b43d66e..04e0ef1d3769 100644 --- a/drivers/net/ethernet/ibm/ehea/ehea_main.c +++ b/drivers/net/ethernet/ibm/ehea/ehea_main.c @@ -1285,7 +1285,7 @@ static int ehea_reg_interrupts(struct net_device *dev) ret = ibmebus_request_irq(port->qp_eq->attr.ist1, ehea_qp_aff_irq_handler, - IRQF_DISABLED, port->int_aff_name, port); + 0, port->int_aff_name, port); if (ret) { netdev_err(dev, "failed registering irq for qp_aff_irq_handler:ist=%X\n", port->qp_eq->attr.ist1); @@ -1303,8 +1303,7 @@ static int ehea_reg_interrupts(struct net_device *dev) "%s-queue%d", dev->name, i); ret = ibmebus_request_irq(pr->eq->attr.ist1, ehea_recv_irq_handler, - IRQF_DISABLED, pr->int_send_name, - pr); + 0, pr->int_send_name, pr); if (ret) { netdev_err(dev, "failed registering irq for ehea_queue port_res_nr:%d, ist=%X\n", i, pr->eq->attr.ist1); @@ -3320,7 +3319,7 @@ static int ehea_probe_adapter(struct platform_device *dev) } ret = ibmebus_request_irq(adapter->neq->attr.ist1, - ehea_interrupt_neq, IRQF_DISABLED, + ehea_interrupt_neq, 0, "ehea_neq", adapter); if (ret) { dev_err(&dev->dev, "requesting NEQ IRQ failed\n"); From 7bebd005afa8010599941f72220b4f9bd207c2a5 Mon Sep 17 00:00:00 2001 From: Michael Opdenacker Date: Thu, 12 Sep 2013 05:52:50 +0200 Subject: [PATCH 080/350] ethernet: amd: remove deprecated IRQF_DISABLED This patch proposes to remove the IRQF_DISABLED flag from drivers/net/ethernet/amd/sun3lance.c It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker Signed-off-by: David S. Miller --- drivers/net/ethernet/amd/sun3lance.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/amd/sun3lance.c b/drivers/net/ethernet/amd/sun3lance.c index d6b20296b8e4..3d8c6b2cdea4 100644 --- a/drivers/net/ethernet/amd/sun3lance.c +++ b/drivers/net/ethernet/amd/sun3lance.c @@ -358,7 +358,7 @@ static int __init lance_probe( struct net_device *dev) REGA(CSR0) = CSR0_STOP; - if (request_irq(LANCE_IRQ, lance_interrupt, IRQF_DISABLED, "SUN3 Lance", dev) < 0) { + if (request_irq(LANCE_IRQ, lance_interrupt, 0, "SUN3 Lance", dev) < 0) { #ifdef CONFIG_SUN3 iounmap((void __iomem *)ioaddr); #endif From f25672f1f9a4d3aef108d46123a13473954bd966 Mon Sep 17 00:00:00 2001 From: Michael Opdenacker Date: Thu, 12 Sep 2013 06:20:24 +0200 Subject: [PATCH 081/350] net: tulip: remove deprecated IRQF_DISABLED This patch proposes to remove the IRQF_DISABLED flag from drivers/net/ethernet/dec/tulip/de4x5.c It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker Acked-by: Grant Grundler Signed-off-by: David S. Miller --- drivers/net/ethernet/dec/tulip/de4x5.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c index 2db6c573cec7..263b92c00cbf 100644 --- a/drivers/net/ethernet/dec/tulip/de4x5.c +++ b/drivers/net/ethernet/dec/tulip/de4x5.c @@ -1321,7 +1321,7 @@ de4x5_open(struct net_device *dev) if (request_irq(dev->irq, de4x5_interrupt, IRQF_SHARED, lp->adapter_name, dev)) { printk("de4x5_open(): Requested IRQ%d is busy - attemping FAST/SHARE...", dev->irq); - if (request_irq(dev->irq, de4x5_interrupt, IRQF_DISABLED | IRQF_SHARED, + if (request_irq(dev->irq, de4x5_interrupt, IRQF_SHARED, lp->adapter_name, dev)) { printk("\n Cannot get IRQ- reconfigure your hardware.\n"); disable_ast(dev); From 9a0620133ccce9dd35c00a96405c8d80938c2cc0 Mon Sep 17 00:00:00 2001 From: Chris Healy Date: Wed, 11 Sep 2013 21:37:47 -0700 Subject: [PATCH 082/350] resubmit bridge: fix message_age_timer calculation This changes the message_age_timer calculation to use the BPDU's max age as opposed to the local bridge's max age. This is in accordance with section 8.6.2.3.2 Step 2 of the 802.1D-1998 sprecification. With the current implementation, when running with very large bridge diameters, convergance will not always occur even if a root bridge is configured to have a longer max age. Tested successfully on bridge diameters of ~200. Signed-off-by: Chris Healy Signed-off-by: David S. Miller --- net/bridge/br_stp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/bridge/br_stp.c b/net/bridge/br_stp.c index 1c0a50f13229..f1887ba7fc43 100644 --- a/net/bridge/br_stp.c +++ b/net/bridge/br_stp.c @@ -209,7 +209,7 @@ static void br_record_config_information(struct net_bridge_port *p, p->designated_age = jiffies - bpdu->message_age; mod_timer(&p->message_age_timer, jiffies - + (p->br->max_age - bpdu->message_age)); + + (bpdu->max_age - bpdu->message_age)); } /* called under bridge lock */ From be4f154d5ef0ca147ab6bcd38857a774133f5450 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Thu, 12 Sep 2013 17:12:05 +1000 Subject: [PATCH 083/350] bridge: Clamp forward_delay when enabling STP At some point limits were added to forward_delay. However, the limits are only enforced when STP is enabled. This created a scenario where you could have a value outside the allowed range while STP is disabled, which then stuck around even after STP is enabled. This patch fixes this by clamping the value when we enable STP. I had to move the locking around a bit to ensure that there is no window where someone could insert a value outside the range while we're in the middle of enabling STP. Signed-off-by: Herbert Xu Cheers, Signed-off-by: David S. Miller --- net/bridge/br_private.h | 1 + net/bridge/br_stp.c | 29 +++++++++++++++++++---------- net/bridge/br_stp_if.c | 12 ++++++++++-- 3 files changed, 30 insertions(+), 12 deletions(-) diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index 598cb0b333c6..cda83158a21c 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -746,6 +746,7 @@ extern struct net_bridge_port *br_get_port(struct net_bridge *br, extern void br_init_port(struct net_bridge_port *p); extern void br_become_designated_port(struct net_bridge_port *p); +extern void __br_set_forward_delay(struct net_bridge *br, unsigned long t); extern int br_set_forward_delay(struct net_bridge *br, unsigned long x); extern int br_set_hello_time(struct net_bridge *br, unsigned long x); extern int br_set_max_age(struct net_bridge *br, unsigned long x); diff --git a/net/bridge/br_stp.c b/net/bridge/br_stp.c index f1887ba7fc43..3c86f0538cbb 100644 --- a/net/bridge/br_stp.c +++ b/net/bridge/br_stp.c @@ -544,18 +544,27 @@ int br_set_max_age(struct net_bridge *br, unsigned long val) } -int br_set_forward_delay(struct net_bridge *br, unsigned long val) +void __br_set_forward_delay(struct net_bridge *br, unsigned long t) { - unsigned long t = clock_t_to_jiffies(val); - - if (br->stp_enabled != BR_NO_STP && - (t < BR_MIN_FORWARD_DELAY || t > BR_MAX_FORWARD_DELAY)) - return -ERANGE; - - spin_lock_bh(&br->lock); br->bridge_forward_delay = t; if (br_is_root_bridge(br)) br->forward_delay = br->bridge_forward_delay; - spin_unlock_bh(&br->lock); - return 0; +} + +int br_set_forward_delay(struct net_bridge *br, unsigned long val) +{ + unsigned long t = clock_t_to_jiffies(val); + int err = -ERANGE; + + spin_lock_bh(&br->lock); + if (br->stp_enabled != BR_NO_STP && + (t < BR_MIN_FORWARD_DELAY || t > BR_MAX_FORWARD_DELAY)) + goto unlock; + + __br_set_forward_delay(br, t); + err = 0; + +unlock: + spin_unlock_bh(&br->lock); + return err; } diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c index d45e760141bb..108084a04671 100644 --- a/net/bridge/br_stp_if.c +++ b/net/bridge/br_stp_if.c @@ -129,6 +129,14 @@ static void br_stp_start(struct net_bridge *br) char *envp[] = { NULL }; r = call_usermodehelper(BR_STP_PROG, argv, envp, UMH_WAIT_PROC); + + spin_lock_bh(&br->lock); + + if (br->bridge_forward_delay < BR_MIN_FORWARD_DELAY) + __br_set_forward_delay(br, BR_MIN_FORWARD_DELAY); + else if (br->bridge_forward_delay < BR_MAX_FORWARD_DELAY) + __br_set_forward_delay(br, BR_MAX_FORWARD_DELAY); + if (r == 0) { br->stp_enabled = BR_USER_STP; br_debug(br, "userspace STP started\n"); @@ -137,10 +145,10 @@ static void br_stp_start(struct net_bridge *br) br_debug(br, "using kernel STP\n"); /* To start timers on any ports left in blocking */ - spin_lock_bh(&br->lock); br_port_state_selection(br); - spin_unlock_bh(&br->lock); } + + spin_unlock_bh(&br->lock); } static void br_stp_stop(struct net_bridge *br) From 38463e2c290426262cd9a75fe66cbbe2925a68c2 Mon Sep 17 00:00:00 2001 From: Eugenia Emantayev Date: Thu, 12 Sep 2013 18:11:20 +0300 Subject: [PATCH 084/350] net/mlx4_en: Check device state when setting coalescing When the device is down, CQs are freed. We must check the device state to avoid issuing firmware commands on non existing CQs. CC: Or Gerlitz Signed-off-by: Eugenia Emantayev Signed-off-by: Amir Vadai Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/en_ethtool.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c index a28cd801a236..0c750985f47e 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c @@ -53,9 +53,11 @@ static int mlx4_en_moderation_update(struct mlx4_en_priv *priv) for (i = 0; i < priv->tx_ring_num; i++) { priv->tx_cq[i].moder_cnt = priv->tx_frames; priv->tx_cq[i].moder_time = priv->tx_usecs; - err = mlx4_en_set_cq_moder(priv, &priv->tx_cq[i]); - if (err) - return err; + if (priv->port_up) { + err = mlx4_en_set_cq_moder(priv, &priv->tx_cq[i]); + if (err) + return err; + } } if (priv->adaptive_rx_coal) @@ -65,9 +67,11 @@ static int mlx4_en_moderation_update(struct mlx4_en_priv *priv) priv->rx_cq[i].moder_cnt = priv->rx_frames; priv->rx_cq[i].moder_time = priv->rx_usecs; priv->last_moder_time[i] = MLX4_EN_AUTO_CONF; - err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]); - if (err) - return err; + if (priv->port_up) { + err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]); + if (err) + return err; + } } return err; From 8947312987e3d8b3457452c27d3bdacde9984f47 Mon Sep 17 00:00:00 2001 From: Alexey Khoroshilov Date: Fri, 13 Sep 2013 00:51:20 +0400 Subject: [PATCH 085/350] net/irda/mcs7780: fix memory leaks in mcs_net_open() If rx_urb allocation fails in mcs_setup_urbs(), tx_urb leaks. If mcs_receive_start() fails in mcs_net_open(), the both urbs are not deallocated. The patch fixes the issues and by the way fixes label indentation. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov Signed-off-by: David S. Miller --- drivers/net/irda/mcs7780.c | 40 ++++++++++++++++++++++---------------- 1 file changed, 23 insertions(+), 17 deletions(-) diff --git a/drivers/net/irda/mcs7780.c b/drivers/net/irda/mcs7780.c index f07c340990da..3f138ca88670 100644 --- a/drivers/net/irda/mcs7780.c +++ b/drivers/net/irda/mcs7780.c @@ -191,8 +191,8 @@ static inline int mcs_setup_transceiver_vishay(struct mcs_cb *mcs) goto error; ret = 0; - error: - return ret; +error: + return ret; } /* Setup a communication between mcs7780 and agilent chip. */ @@ -501,8 +501,11 @@ static inline int mcs_setup_urbs(struct mcs_cb *mcs) return 0; mcs->rx_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!mcs->rx_urb) + if (!mcs->rx_urb) { + usb_free_urb(mcs->tx_urb); + mcs->tx_urb = NULL; return 0; + } return 1; } @@ -643,9 +646,9 @@ static int mcs_speed_change(struct mcs_cb *mcs) ret = mcs_set_reg(mcs, MCS_MODE_REG, rval); mcs->speed = mcs->new_speed; - error: - mcs->new_speed = 0; - return ret; +error: + mcs->new_speed = 0; + return ret; } /* Ioctl calls not supported at this time. Can be an area of future work. */ @@ -738,17 +741,20 @@ static int mcs_net_open(struct net_device *netdev) ret = mcs_receive_start(mcs); if (ret) - goto error3; + goto error4; netif_start_queue(netdev); return 0; - error3: - irlap_close(mcs->irlap); - error2: - kfree_skb(mcs->rx_buff.skb); - error1: - return ret; +error4: + usb_free_urb(mcs->rx_urb); + usb_free_urb(mcs->tx_urb); +error3: + irlap_close(mcs->irlap); +error2: + kfree_skb(mcs->rx_buff.skb); +error1: + return ret; } /* Receive callback function. */ @@ -946,11 +952,11 @@ static int mcs_probe(struct usb_interface *intf, usb_set_intfdata(intf, mcs); return 0; - error2: - free_netdev(ndev); +error2: + free_netdev(ndev); - error1: - return ret; +error1: + return ret; } /* The current device is removed, the USB layer tells us to shut down. */ From c13a84a830a208fb3443628773c8ca0557773cc7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Michal=20Kube=C4=8Dek?= Date: Wed, 11 Sep 2013 10:17:27 +0200 Subject: [PATCH 086/350] netfilter: nf_conntrack: use RCU safe kfree for conntrack extensions Commit 68b80f11 (netfilter: nf_nat: fix RCU races) introduced RCU protection for freeing extension data when reallocation moves them to a new location. We need the same protection when freeing them in nf_ct_ext_free() in order to prevent a use-after-free by other threads referencing a NAT extension data via bysource list. Signed-off-by: Michal Kubecek Signed-off-by: Pablo Neira Ayuso --- include/net/netfilter/nf_conntrack_extend.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/net/netfilter/nf_conntrack_extend.h b/include/net/netfilter/nf_conntrack_extend.h index ff95434e50ca..88a1d4060d52 100644 --- a/include/net/netfilter/nf_conntrack_extend.h +++ b/include/net/netfilter/nf_conntrack_extend.h @@ -86,7 +86,7 @@ static inline void nf_ct_ext_destroy(struct nf_conn *ct) static inline void nf_ct_ext_free(struct nf_conn *ct) { if (ct->ext) - kfree(ct->ext); + kfree_rcu(ct->ext, rcu); } /* Add this type, returns pointer to data or NULL. */ From d830f0fa1dd7ca447c38aec82cd44230e0b7ca75 Mon Sep 17 00:00:00 2001 From: Phil Oester Date: Thu, 12 Sep 2013 18:04:16 -0700 Subject: [PATCH 087/350] netfilter: nf_nat_proto_icmpv6:: fix wrong comparison in icmpv6_manip_pkt In commit 58a317f1 (netfilter: ipv6: add IPv6 NAT support), icmpv6_manip_pkt was added with an incorrect comparison of ICMP codes to types. This causes problems when using NAT rules with the --random option. Correct the comparison. This closes netfilter bugzilla #851, reported by Alexander Neumann. Signed-off-by: Phil Oester Signed-off-by: Pablo Neira Ayuso --- net/ipv6/netfilter/nf_nat_proto_icmpv6.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/ipv6/netfilter/nf_nat_proto_icmpv6.c b/net/ipv6/netfilter/nf_nat_proto_icmpv6.c index 61aaf70f376e..2205e8eeeacf 100644 --- a/net/ipv6/netfilter/nf_nat_proto_icmpv6.c +++ b/net/ipv6/netfilter/nf_nat_proto_icmpv6.c @@ -69,8 +69,8 @@ icmpv6_manip_pkt(struct sk_buff *skb, hdr = (struct icmp6hdr *)(skb->data + hdroff); l3proto->csum_update(skb, iphdroff, &hdr->icmp6_cksum, tuple, maniptype); - if (hdr->icmp6_code == ICMPV6_ECHO_REQUEST || - hdr->icmp6_code == ICMPV6_ECHO_REPLY) { + if (hdr->icmp6_type == ICMPV6_ECHO_REQUEST || + hdr->icmp6_type == ICMPV6_ECHO_REPLY) { inet_proto_csum_replace2(&hdr->icmp6_cksum, skb, hdr->icmp6_identifier, tuple->src.u.icmp.id, 0); From 331415ff16a12147d57d5c953f3a961b7ede348b Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 11 Sep 2013 21:56:50 +0200 Subject: [PATCH 088/350] HID: provide a helper for validating hid reports Many drivers need to validate the characteristics of their HID report during initialization to avoid misusing the reports. This adds a common helper to perform validation of the report exisitng, the field existing, and the expected number of values within the field. Signed-off-by: Kees Cook Cc: stable@vger.kernel.org Reviewed-by: Benjamin Tissoires Signed-off-by: Jiri Kosina --- drivers/hid/hid-core.c | 58 ++++++++++++++++++++++++++++++++++++++++++ include/linux/hid.h | 4 +++ 2 files changed, 62 insertions(+) diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index ae88a97f976e..be52c06dbe30 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -801,6 +801,64 @@ int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size) } EXPORT_SYMBOL_GPL(hid_parse_report); +static const char * const hid_report_names[] = { + "HID_INPUT_REPORT", + "HID_OUTPUT_REPORT", + "HID_FEATURE_REPORT", +}; +/** + * hid_validate_values - validate existing device report's value indexes + * + * @device: hid device + * @type: which report type to examine + * @id: which report ID to examine (0 for first) + * @field_index: which report field to examine + * @report_counts: expected number of values + * + * Validate the number of values in a given field of a given report, after + * parsing. + */ +struct hid_report *hid_validate_values(struct hid_device *hid, + unsigned int type, unsigned int id, + unsigned int field_index, + unsigned int report_counts) +{ + struct hid_report *report; + + if (type > HID_FEATURE_REPORT) { + hid_err(hid, "invalid HID report type %u\n", type); + return NULL; + } + + if (id >= HID_MAX_IDS) { + hid_err(hid, "invalid HID report id %u\n", id); + return NULL; + } + + /* + * Explicitly not using hid_get_report() here since it depends on + * ->numbered being checked, which may not always be the case when + * drivers go to access report values. + */ + report = hid->report_enum[type].report_id_hash[id]; + if (!report) { + hid_err(hid, "missing %s %u\n", hid_report_names[type], id); + return NULL; + } + if (report->maxfield <= field_index) { + hid_err(hid, "not enough fields in %s %u\n", + hid_report_names[type], id); + return NULL; + } + if (report->field[field_index]->report_count < report_counts) { + hid_err(hid, "not enough values in %s %u field %u\n", + hid_report_names[type], id, field_index); + return NULL; + } + return report; +} +EXPORT_SYMBOL_GPL(hid_validate_values); + /** * hid_open_report - open a driver-specific device report * diff --git a/include/linux/hid.h b/include/linux/hid.h index ee1ffc5e19c9..31b9d299ef6c 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -756,6 +756,10 @@ u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags); struct hid_device *hid_allocate_device(void); struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id); int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size); +struct hid_report *hid_validate_values(struct hid_device *hid, + unsigned int type, unsigned int id, + unsigned int field_index, + unsigned int report_counts); int hid_open_report(struct hid_device *device); int hid_check_keys_pressed(struct hid_device *hid); int hid_connect(struct hid_device *hid, unsigned int connect_mask); From 78214e81a1bf43740ce89bb5efda78eac2f8ef83 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 11 Sep 2013 21:56:51 +0200 Subject: [PATCH 089/350] HID: zeroplus: validate output report details The zeroplus HID driver was not checking the size of allocated values in fields it used. A HID device could send a malicious output report that would cause the driver to write beyond the output report allocation during initialization, causing a heap overflow: [ 1442.728680] usb 1-1: New USB device found, idVendor=0c12, idProduct=0005 ... [ 1466.243173] BUG kmalloc-192 (Tainted: G W ): Redzone overwritten CVE-2013-2889 Signed-off-by: Kees Cook Cc: stable@vger.kernel.org Reviewed-by: Benjamin Tissoires Signed-off-by: Jiri Kosina --- drivers/hid/hid-zpff.c | 18 +++++------------- 1 file changed, 5 insertions(+), 13 deletions(-) diff --git a/drivers/hid/hid-zpff.c b/drivers/hid/hid-zpff.c index 6ec28a37c146..a29756c6ca02 100644 --- a/drivers/hid/hid-zpff.c +++ b/drivers/hid/hid-zpff.c @@ -68,21 +68,13 @@ static int zpff_init(struct hid_device *hid) struct hid_report *report; struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list); - struct list_head *report_list = - &hid->report_enum[HID_OUTPUT_REPORT].report_list; struct input_dev *dev = hidinput->input; - int error; + int i, error; - if (list_empty(report_list)) { - hid_err(hid, "no output report found\n"); - return -ENODEV; - } - - report = list_entry(report_list->next, struct hid_report, list); - - if (report->maxfield < 4) { - hid_err(hid, "not enough fields in report\n"); - return -ENODEV; + for (i = 0; i < 4; i++) { + report = hid_validate_values(hid, HID_OUTPUT_REPORT, 0, i, 1); + if (!report) + return -ENODEV; } zpff = kzalloc(sizeof(struct zpff_device), GFP_KERNEL); From 9446edb9a1740989cf6c20daf7510fb9a23be14a Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 11 Sep 2013 21:56:52 +0200 Subject: [PATCH 090/350] HID: sony: validate HID output report details This driver must validate the availability of the HID output report and its size before it can write LED states via buzz_set_leds(). This stops a heap overflow that is possible if a device provides a malicious HID output report: [ 108.171280] usb 1-1: New USB device found, idVendor=054c, idProduct=0002 ... [ 117.507877] BUG kmalloc-192 (Not tainted): Redzone overwritten CVE-2013-2890 Signed-off-by: Kees Cook Cc: stable@vger.kernel.org #3.11 Reviewed-by: Benjamin Tissoires Signed-off-by: Jiri Kosina --- drivers/hid/hid-sony.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c index 30dbb6b40bbf..b18320db5f7d 100644 --- a/drivers/hid/hid-sony.c +++ b/drivers/hid/hid-sony.c @@ -537,6 +537,10 @@ static int buzz_init(struct hid_device *hdev) drv_data = hid_get_drvdata(hdev); BUG_ON(!(drv_data->quirks & BUZZ_CONTROLLER)); + /* Validate expected report characteristics. */ + if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 0, 0, 7)) + return -ENODEV; + buzz = kzalloc(sizeof(*buzz), GFP_KERNEL); if (!buzz) { hid_err(hdev, "Insufficient memory, cannot allocate driver data\n"); From 41df7f6d43723deb7364340b44bc5d94bf717456 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 11 Sep 2013 21:56:53 +0200 Subject: [PATCH 091/350] HID: steelseries: validate output report details A HID device could send a malicious output report that would cause the steelseries HID driver to write beyond the output report allocation during initialization, causing a heap overflow: [ 167.981534] usb 1-1: New USB device found, idVendor=1038, idProduct=1410 ... [ 182.050547] BUG kmalloc-256 (Tainted: G W ): Redzone overwritten CVE-2013-2891 Signed-off-by: Kees Cook Cc: stable@vger.kernel.org Reviewed-by: Benjamin Tissoires Signed-off-by: Jiri Kosina --- drivers/hid/hid-steelseries.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/hid/hid-steelseries.c b/drivers/hid/hid-steelseries.c index d16491192112..29f328f411fb 100644 --- a/drivers/hid/hid-steelseries.c +++ b/drivers/hid/hid-steelseries.c @@ -249,6 +249,11 @@ static int steelseries_srws1_probe(struct hid_device *hdev, goto err_free; } + if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 0, 0, 16)) { + ret = -ENODEV; + goto err_free; + } + ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); if (ret) { hid_err(hdev, "hw start failed\n"); From 0fb6bd06e06792469acc15bbe427361b56ada528 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 11 Sep 2013 21:56:54 +0200 Subject: [PATCH 092/350] HID: LG: validate HID output report details A HID device could send a malicious output report that would cause the lg, lg3, and lg4 HID drivers to write beyond the output report allocation during an event, causing a heap overflow: [ 325.245240] usb 1-1: New USB device found, idVendor=046d, idProduct=c287 ... [ 414.518960] BUG kmalloc-4096 (Not tainted): Redzone overwritten Additionally, while lg2 did correctly validate the report details, it was cleaned up and shortened. CVE-2013-2893 Signed-off-by: Kees Cook Cc: stable@vger.kernel.org Reviewed-by: Benjamin Tissoires Signed-off-by: Jiri Kosina --- drivers/hid/hid-lg2ff.c | 19 +++---------------- drivers/hid/hid-lg3ff.c | 29 ++++++----------------------- drivers/hid/hid-lg4ff.c | 20 +------------------- drivers/hid/hid-lgff.c | 17 ++--------------- 4 files changed, 12 insertions(+), 73 deletions(-) diff --git a/drivers/hid/hid-lg2ff.c b/drivers/hid/hid-lg2ff.c index b3cd1507dda2..1a42eaa6ca02 100644 --- a/drivers/hid/hid-lg2ff.c +++ b/drivers/hid/hid-lg2ff.c @@ -64,26 +64,13 @@ int lg2ff_init(struct hid_device *hid) struct hid_report *report; struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list); - struct list_head *report_list = - &hid->report_enum[HID_OUTPUT_REPORT].report_list; struct input_dev *dev = hidinput->input; int error; - if (list_empty(report_list)) { - hid_err(hid, "no output report found\n"); + /* Check that the report looks ok */ + report = hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7); + if (!report) return -ENODEV; - } - - report = list_entry(report_list->next, struct hid_report, list); - - if (report->maxfield < 1) { - hid_err(hid, "output report is empty\n"); - return -ENODEV; - } - if (report->field[0]->report_count < 7) { - hid_err(hid, "not enough values in the field\n"); - return -ENODEV; - } lg2ff = kmalloc(sizeof(struct lg2ff_device), GFP_KERNEL); if (!lg2ff) diff --git a/drivers/hid/hid-lg3ff.c b/drivers/hid/hid-lg3ff.c index e52f181f6aa1..8c2da183d3bc 100644 --- a/drivers/hid/hid-lg3ff.c +++ b/drivers/hid/hid-lg3ff.c @@ -66,10 +66,11 @@ static int hid_lg3ff_play(struct input_dev *dev, void *data, int x, y; /* - * Maxusage should always be 63 (maximum fields) - * likely a better way to ensure this data is clean + * Available values in the field should always be 63, but we only use up to + * 35. Instead, clear the entire area, however big it is. */ - memset(report->field[0]->value, 0, sizeof(__s32)*report->field[0]->maxusage); + memset(report->field[0]->value, 0, + sizeof(__s32) * report->field[0]->report_count); switch (effect->type) { case FF_CONSTANT: @@ -129,32 +130,14 @@ static const signed short ff3_joystick_ac[] = { int lg3ff_init(struct hid_device *hid) { struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list); - struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; struct input_dev *dev = hidinput->input; - struct hid_report *report; - struct hid_field *field; const signed short *ff_bits = ff3_joystick_ac; int error; int i; - /* Find the report to use */ - if (list_empty(report_list)) { - hid_err(hid, "No output report found\n"); - return -1; - } - /* Check that the report looks ok */ - report = list_entry(report_list->next, struct hid_report, list); - if (!report) { - hid_err(hid, "NULL output report\n"); - return -1; - } - - field = report->field[0]; - if (!field) { - hid_err(hid, "NULL field\n"); - return -1; - } + if (!hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 35)) + return -ENODEV; /* Assume single fixed device G940 */ for (i = 0; ff_bits[i] >= 0; i++) diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c index 0ddae2a00d59..8782fe1aaa07 100644 --- a/drivers/hid/hid-lg4ff.c +++ b/drivers/hid/hid-lg4ff.c @@ -484,34 +484,16 @@ static enum led_brightness lg4ff_led_get_brightness(struct led_classdev *led_cde int lg4ff_init(struct hid_device *hid) { struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list); - struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; struct input_dev *dev = hidinput->input; - struct hid_report *report; - struct hid_field *field; struct lg4ff_device_entry *entry; struct lg_drv_data *drv_data; struct usb_device_descriptor *udesc; int error, i, j; __u16 bcdDevice, rev_maj, rev_min; - /* Find the report to use */ - if (list_empty(report_list)) { - hid_err(hid, "No output report found\n"); - return -1; - } - /* Check that the report looks ok */ - report = list_entry(report_list->next, struct hid_report, list); - if (!report) { - hid_err(hid, "NULL output report\n"); + if (!hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7)) return -1; - } - - field = report->field[0]; - if (!field) { - hid_err(hid, "NULL field\n"); - return -1; - } /* Check what wheel has been connected */ for (i = 0; i < ARRAY_SIZE(lg4ff_devices); i++) { diff --git a/drivers/hid/hid-lgff.c b/drivers/hid/hid-lgff.c index d7ea8c845b40..e1394af0ae7b 100644 --- a/drivers/hid/hid-lgff.c +++ b/drivers/hid/hid-lgff.c @@ -128,27 +128,14 @@ static void hid_lgff_set_autocenter(struct input_dev *dev, u16 magnitude) int lgff_init(struct hid_device* hid) { struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list); - struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; struct input_dev *dev = hidinput->input; - struct hid_report *report; - struct hid_field *field; const signed short *ff_bits = ff_joystick; int error; int i; - /* Find the report to use */ - if (list_empty(report_list)) { - hid_err(hid, "No output report found\n"); - return -1; - } - /* Check that the report looks ok */ - report = list_entry(report_list->next, struct hid_report, list); - field = report->field[0]; - if (!field) { - hid_err(hid, "NULL field\n"); - return -1; - } + if (!hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7)) + return -ENODEV; for (i = 0; i < ARRAY_SIZE(devices); i++) { if (dev->id.vendor == devices[i].idVendor && From 0a9cd0a80ac559357c6a90d26c55270ed752aa26 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 11 Sep 2013 21:56:55 +0200 Subject: [PATCH 093/350] HID: lenovo-tpkbd: validate output report details A HID device could send a malicious output report that would cause the lenovo-tpkbd HID driver to write just beyond the output report allocation during initialization, causing a heap overflow: [ 76.109807] usb 1-1: New USB device found, idVendor=17ef, idProduct=6009 ... [ 80.462540] BUG kmalloc-192 (Tainted: G W ): Redzone overwritten CVE-2013-2894 Signed-off-by: Kees Cook Cc: stable@vger.kernel.org Signed-off-by: Benjamin Tissoires Signed-off-by: Jiri Kosina --- drivers/hid/hid-lenovo-tpkbd.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/hid/hid-lenovo-tpkbd.c b/drivers/hid/hid-lenovo-tpkbd.c index 07837f5a4eb8..762d988548a2 100644 --- a/drivers/hid/hid-lenovo-tpkbd.c +++ b/drivers/hid/hid-lenovo-tpkbd.c @@ -339,7 +339,15 @@ static int tpkbd_probe_tp(struct hid_device *hdev) struct tpkbd_data_pointer *data_pointer; size_t name_sz = strlen(dev_name(dev)) + 16; char *name_mute, *name_micmute; - int ret; + int i, ret; + + /* Validate required reports. */ + for (i = 0; i < 4; i++) { + if (!hid_validate_values(hdev, HID_FEATURE_REPORT, 4, i, 1)) + return -ENODEV; + } + if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 3, 0, 2)) + return -ENODEV; if (sysfs_create_group(&hdev->dev.kobj, &tpkbd_attr_group_pointer)) { From cc6b54aa54bf40b762cab45a9fc8aa81653146eb Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Wed, 11 Sep 2013 21:56:57 +0200 Subject: [PATCH 094/350] HID: validate feature and input report details When dealing with usage_index, be sure to properly use unsigned instead of int to avoid overflows. When working on report fields, always validate that their report_counts are in bounds. Without this, a HID device could report a malicious feature report that could trick the driver into a heap overflow: [ 634.885003] usb 1-1: New USB device found, idVendor=0596, idProduct=0500 ... [ 676.469629] BUG kmalloc-192 (Tainted: G W ): Redzone overwritten CVE-2013-2897 Cc: stable@vger.kernel.org Signed-off-by: Benjamin Tissoires Acked-by: Kees Cook Signed-off-by: Jiri Kosina --- drivers/hid/hid-core.c | 16 +++++++--------- drivers/hid/hid-input.c | 11 ++++++++++- 2 files changed, 17 insertions(+), 10 deletions(-) diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index be52c06dbe30..b8470b1a10fe 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -94,7 +94,6 @@ EXPORT_SYMBOL_GPL(hid_register_report); static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values) { struct hid_field *field; - int i; if (report->maxfield == HID_MAX_FIELDS) { hid_err(report->device, "too many fields in report\n"); @@ -113,9 +112,6 @@ static struct hid_field *hid_register_field(struct hid_report *report, unsigned field->value = (s32 *)(field->usage + usages); field->report = report; - for (i = 0; i < usages; i++) - field->usage[i].usage_index = i; - return field; } @@ -226,9 +222,9 @@ static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsign { struct hid_report *report; struct hid_field *field; - int usages; + unsigned usages; unsigned offset; - int i; + unsigned i; report = hid_register_report(parser->device, report_type, parser->global.report_id); if (!report) { @@ -255,7 +251,8 @@ static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsign if (!parser->local.usage_index) /* Ignore padding fields */ return 0; - usages = max_t(int, parser->local.usage_index, parser->global.report_count); + usages = max_t(unsigned, parser->local.usage_index, + parser->global.report_count); field = hid_register_field(report, usages, parser->global.report_count); if (!field) @@ -266,13 +263,14 @@ static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsign field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION); for (i = 0; i < usages; i++) { - int j = i; + unsigned j = i; /* Duplicate the last usage we parsed if we have excess values */ if (i >= parser->local.usage_index) j = parser->local.usage_index - 1; field->usage[i].hid = parser->local.usage[j]; field->usage[i].collection_index = parser->local.collection_index[j]; + field->usage[i].usage_index = i; } field->maxusage = usages; @@ -1354,7 +1352,7 @@ int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size, goto out; } - if (hid->claimed != HID_CLAIMED_HIDRAW) { + if (hid->claimed != HID_CLAIMED_HIDRAW && report->maxfield) { for (a = 0; a < report->maxfield; a++) hid_input_field(hid, report->field[a], cdata, interrupt); hdrv = hid->driver; diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c index b420f4a0fd28..8741d953dcc8 100644 --- a/drivers/hid/hid-input.c +++ b/drivers/hid/hid-input.c @@ -485,6 +485,10 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel if (field->flags & HID_MAIN_ITEM_CONSTANT) goto ignore; + /* Ignore if report count is out of bounds. */ + if (field->report_count < 1) + goto ignore; + /* only LED usages are supported in output fields */ if (field->report_type == HID_OUTPUT_REPORT && (usage->hid & HID_USAGE_PAGE) != HID_UP_LED) { @@ -1236,7 +1240,11 @@ static void report_features(struct hid_device *hid) rep_enum = &hid->report_enum[HID_FEATURE_REPORT]; list_for_each_entry(rep, &rep_enum->report_list, list) - for (i = 0; i < rep->maxfield; i++) + for (i = 0; i < rep->maxfield; i++) { + /* Ignore if report count is out of bounds. */ + if (rep->field[i]->report_count < 1) + continue; + for (j = 0; j < rep->field[i]->maxusage; j++) { /* Verify if Battery Strength feature is available */ hidinput_setup_battery(hid, HID_FEATURE_REPORT, rep->field[i]); @@ -1245,6 +1253,7 @@ static void report_features(struct hid_device *hid) drv->feature_mapping(hid, rep->field[i], rep->field[i]->usage + j); } + } } static struct hid_input *hidinput_allocate(struct hid_device *hid) From 297502abb32e225fb23801fcdb0e4f6f8e17099a Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 11 Sep 2013 21:56:56 +0200 Subject: [PATCH 095/350] HID: logitech-dj: validate output report details A HID device could send a malicious output report that would cause the logitech-dj HID driver to leak kernel memory contents to the device, or trigger a NULL dereference during initialization: [ 304.424553] usb 1-1: New USB device found, idVendor=046d, idProduct=c52b ... [ 304.780467] BUG: unable to handle kernel NULL pointer dereference at 0000000000000028 [ 304.781409] IP: [] logi_dj_recv_send_report.isra.11+0x1a/0x90 CVE-2013-2895 Signed-off-by: Kees Cook Cc: stable@vger.kernel.org Signed-off-by: Benjamin Tissoires Signed-off-by: Jiri Kosina --- drivers/hid/hid-logitech-dj.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/hid/hid-logitech-dj.c b/drivers/hid/hid-logitech-dj.c index 7800b1410562..2e5302462efb 100644 --- a/drivers/hid/hid-logitech-dj.c +++ b/drivers/hid/hid-logitech-dj.c @@ -461,7 +461,7 @@ static int logi_dj_recv_send_report(struct dj_receiver_dev *djrcv_dev, struct hid_report *report; struct hid_report_enum *output_report_enum; u8 *data = (u8 *)(&dj_report->device_index); - int i; + unsigned int i; output_report_enum = &hdev->report_enum[HID_OUTPUT_REPORT]; report = output_report_enum->report_id_hash[REPORT_ID_DJ_SHORT]; @@ -471,7 +471,7 @@ static int logi_dj_recv_send_report(struct dj_receiver_dev *djrcv_dev, return -ENODEV; } - for (i = 0; i < report->field[0]->report_count; i++) + for (i = 0; i < DJREPORT_SHORT_LENGTH - 1; i++) report->field[0]->value[i] = data[i]; hid_hw_request(hdev, report, HID_REQ_SET_REPORT); @@ -791,6 +791,12 @@ static int logi_dj_probe(struct hid_device *hdev, goto hid_parse_fail; } + if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, REPORT_ID_DJ_SHORT, + 0, DJREPORT_SHORT_LENGTH - 1)) { + retval = -ENODEV; + goto hid_parse_fail; + } + /* Starts the usb device and connects to upper interfaces hiddev and * hidraw */ retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT); From 8821f5dc187bdf16cfb32ef5aa8c3035273fa79a Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Wed, 11 Sep 2013 21:56:58 +0200 Subject: [PATCH 096/350] HID: multitouch: validate indexes details When working on report indexes, always validate that they are in bounds. Without this, a HID device could report a malicious feature report that could trick the driver into a heap overflow: [ 634.885003] usb 1-1: New USB device found, idVendor=0596, idProduct=0500 ... [ 676.469629] BUG kmalloc-192 (Tainted: G W ): Redzone overwritten Note that we need to change the indexes from s8 to s16 as they can be between -1 and 255. CVE-2013-2897 Cc: stable@vger.kernel.org Signed-off-by: Benjamin Tissoires Acked-by: Kees Cook Signed-off-by: Jiri Kosina --- drivers/hid/hid-multitouch.c | 26 ++++++++++++++------------ 1 file changed, 14 insertions(+), 12 deletions(-) diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index ac28f08c3866..5e5fe1b8eebb 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -101,9 +101,9 @@ struct mt_device { unsigned last_slot_field; /* the last field of a slot */ unsigned mt_report_id; /* the report ID of the multitouch device */ unsigned pen_report_id; /* the report ID of the pen device */ - __s8 inputmode; /* InputMode HID feature, -1 if non-existent */ - __s8 inputmode_index; /* InputMode HID feature index in the report */ - __s8 maxcontact_report_id; /* Maximum Contact Number HID feature, + __s16 inputmode; /* InputMode HID feature, -1 if non-existent */ + __s16 inputmode_index; /* InputMode HID feature index in the report */ + __s16 maxcontact_report_id; /* Maximum Contact Number HID feature, -1 if non-existent */ __u8 num_received; /* how many contacts we received */ __u8 num_expected; /* expected last contact index */ @@ -312,20 +312,18 @@ static void mt_feature_mapping(struct hid_device *hdev, struct hid_field *field, struct hid_usage *usage) { struct mt_device *td = hid_get_drvdata(hdev); - int i; switch (usage->hid) { case HID_DG_INPUTMODE: - td->inputmode = field->report->id; - td->inputmode_index = 0; /* has to be updated below */ - - for (i=0; i < field->maxusage; i++) { - if (field->usage[i].hid == usage->hid) { - td->inputmode_index = i; - break; - } + /* Ignore if value index is out of bounds. */ + if (usage->usage_index >= field->report_count) { + dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n"); + break; } + td->inputmode = field->report->id; + td->inputmode_index = usage->usage_index; + break; case HID_DG_CONTACTMAX: td->maxcontact_report_id = field->report->id; @@ -511,6 +509,10 @@ static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi, mt_store_field(usage, td, hi); return 1; case HID_DG_CONTACTCOUNT: + /* Ignore if indexes are out of bounds. */ + if (field->index >= field->report->maxfield || + usage->usage_index >= field->report_count) + return 1; td->cc_index = field->index; td->cc_value_index = usage->usage_index; return 1; From 0ccdd9e7476680c16113131264ad6597bd10299d Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Wed, 11 Sep 2013 21:56:59 +0200 Subject: [PATCH 097/350] HID: lenovo-tpkbd: fix leak if tpkbd_probe_tp fails If tpkbd_probe_tp() bails out, the probe() function return an error, but hid_hw_stop() is never called. fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1003998 Cc: stable@vger.kernel.org Signed-off-by: Benjamin Tissoires Signed-off-by: Jiri Kosina --- drivers/hid/hid-lenovo-tpkbd.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/hid/hid-lenovo-tpkbd.c b/drivers/hid/hid-lenovo-tpkbd.c index 762d988548a2..31cf29a6ba17 100644 --- a/drivers/hid/hid-lenovo-tpkbd.c +++ b/drivers/hid/hid-lenovo-tpkbd.c @@ -414,22 +414,27 @@ static int tpkbd_probe(struct hid_device *hdev, ret = hid_parse(hdev); if (ret) { hid_err(hdev, "hid_parse failed\n"); - goto err_free; + goto err; } ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); if (ret) { hid_err(hdev, "hid_hw_start failed\n"); - goto err_free; + goto err; } uhdev = (struct usbhid_device *) hdev->driver_data; - if (uhdev->ifnum == 1) - return tpkbd_probe_tp(hdev); + if (uhdev->ifnum == 1) { + ret = tpkbd_probe_tp(hdev); + if (ret) + goto err_hid; + } return 0; -err_free: +err_hid: + hid_hw_stop(hdev); +err: return ret; } From 6dcc28b93e9675df0f30c063c30d05c1073f1efc Mon Sep 17 00:00:00 2001 From: Jacob Keller Date: Wed, 17 Jul 2013 02:53:23 +0000 Subject: [PATCH 098/350] ixgbe: fully disable hardware RSC logic when disabling RSC This patch modifies the configure_rx path in order to properly disable RSC hardware logic when the user disables it. Previously we only disabled RSC in the queue settings, but this does not fully disable hardware RSC logic which can lead to some unexpected performance issues. Signed-off-by: Jacob Keller Tested-by: Phil Schmitt Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 9 ++++++++- drivers/net/ethernet/intel/ixgbe/ixgbe_type.h | 1 + 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 7aba452833e5..ae267868429b 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -3571,7 +3571,7 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) { struct ixgbe_hw *hw = &adapter->hw; int i; - u32 rxctrl; + u32 rxctrl, rfctl; /* disable receives while setting up the descriptors */ rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); @@ -3580,6 +3580,13 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) ixgbe_setup_psrtype(adapter); ixgbe_setup_rdrxctl(adapter); + /* RSC Setup */ + rfctl = IXGBE_READ_REG(hw, IXGBE_RFCTL); + rfctl &= ~IXGBE_RFCTL_RSC_DIS; + if (!(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)) + rfctl |= IXGBE_RFCTL_RSC_DIS; + IXGBE_WRITE_REG(hw, IXGBE_RFCTL, rfctl); + /* Program registers for the distribution of queues */ ixgbe_setup_mrqc(adapter); diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h index 6442cf8f9dce..10775cb9b6d8 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h @@ -1861,6 +1861,7 @@ enum { #define IXGBE_RFCTL_ISCSI_DIS 0x00000001 #define IXGBE_RFCTL_ISCSI_DWC_MASK 0x0000003E #define IXGBE_RFCTL_ISCSI_DWC_SHIFT 1 +#define IXGBE_RFCTL_RSC_DIS 0x00000020 #define IXGBE_RFCTL_NFSW_DIS 0x00000040 #define IXGBE_RFCTL_NFSR_DIS 0x00000080 #define IXGBE_RFCTL_NFS_VER_MASK 0x00000300 From 4db30e38ec2ad937678964f227202c6b5e90508e Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Fri, 13 Sep 2013 10:57:54 -0400 Subject: [PATCH 099/350] tile: fix typos in comment in arch/tile/kernel/unaligned.c Signed-off-by: Chris Metcalf --- arch/tile/kernel/unaligned.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/tile/kernel/unaligned.c b/arch/tile/kernel/unaligned.c index b425fb6a480d..b030b4e78845 100644 --- a/arch/tile/kernel/unaligned.c +++ b/arch/tile/kernel/unaligned.c @@ -551,8 +551,8 @@ static tilegx_bundle_bits jit_x1_bnezt(int ra, int broff) /* * This function generates unalign fixup JIT. * - * We fist find unalign load/store instruction's destination, source - * reguisters: ra, rb and rd. and 3 scratch registers by calling + * We first find unalign load/store instruction's destination, source + * registers: ra, rb and rd. and 3 scratch registers by calling * find_regs(...). 3 scratch clobbers should not alias with any register * used in the fault bundle. Then analyze the fault bundle to determine * if it's a load or store, operand width, branch or address increment etc. From 8629470ef89da00bd1b974df17ccbb36b3865798 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Fri, 13 Sep 2013 11:14:25 -0400 Subject: [PATCH 100/350] tile: use pmd_pfn() instead of casting via pte_t Signed-off-by: Chris Metcalf --- arch/tile/mm/pgtable.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/tile/mm/pgtable.c b/arch/tile/mm/pgtable.c index 2deaddf3e01f..4fd9ec0b58ed 100644 --- a/arch/tile/mm/pgtable.c +++ b/arch/tile/mm/pgtable.c @@ -127,8 +127,7 @@ void shatter_huge_page(unsigned long addr) } /* Shatter the huge page into the preallocated L2 page table. */ - pmd_populate_kernel(&init_mm, pmd, - get_prealloc_pte(pte_pfn(*(pte_t *)pmd))); + pmd_populate_kernel(&init_mm, pmd, get_prealloc_pte(pmd_pfn(*pmd))); #ifdef __PAGETABLE_PMD_FOLDED /* Walk every pgd on the system and update the pmd there. */ From 4b12909fd137d9a236e4b5c76e0d4b44c2b7f49f Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Wed, 11 Sep 2013 13:57:15 -0400 Subject: [PATCH 101/350] tile: remove HUGE_VMAP dead code A config option to allow a variant vmap() using huge pages that was never upstreamed had some bits of code related to it scattered around the tile architecture; the config option was removed downstream and this commit cleans up the scattered evidence of it from the upstream as well. Signed-off-by: Chris Metcalf --- arch/tile/include/asm/page.h | 5 ++--- arch/tile/include/asm/pgtable_32.h | 12 ++---------- arch/tile/include/asm/pgtable_64.h | 4 +--- arch/tile/kernel/setup.c | 3 +-- arch/tile/mm/fault.c | 2 -- arch/tile/mm/init.c | 4 ---- 6 files changed, 6 insertions(+), 24 deletions(-) diff --git a/arch/tile/include/asm/page.h b/arch/tile/include/asm/page.h index 6346888f7bdc..672768008618 100644 --- a/arch/tile/include/asm/page.h +++ b/arch/tile/include/asm/page.h @@ -182,10 +182,9 @@ static inline __attribute_const__ int get_order(unsigned long size) #define PAGE_OFFSET (-(_AC(1, UL) << (MAX_VA_WIDTH - 1))) #define KERNEL_HIGH_VADDR _AC(0xfffffff800000000, UL) /* high 32GB */ -#define FIXADDR_BASE (KERNEL_HIGH_VADDR - 0x400000000) /* 4 GB */ -#define FIXADDR_TOP (KERNEL_HIGH_VADDR - 0x300000000) /* 4 GB */ +#define FIXADDR_BASE (KERNEL_HIGH_VADDR - 0x300000000) /* 4 GB */ +#define FIXADDR_TOP (KERNEL_HIGH_VADDR - 0x200000000) /* 4 GB */ #define _VMALLOC_START FIXADDR_TOP -#define HUGE_VMAP_BASE (KERNEL_HIGH_VADDR - 0x200000000) /* 4 GB */ #define MEM_SV_START (KERNEL_HIGH_VADDR - 0x100000000) /* 256 MB */ #define MEM_MODULE_START (MEM_SV_START + (256*1024*1024)) /* 256 MB */ #define MEM_MODULE_END (MEM_MODULE_START + (256*1024*1024)) diff --git a/arch/tile/include/asm/pgtable_32.h b/arch/tile/include/asm/pgtable_32.h index 63142ab3b3dd..d26a42279036 100644 --- a/arch/tile/include/asm/pgtable_32.h +++ b/arch/tile/include/asm/pgtable_32.h @@ -55,17 +55,9 @@ #define PKMAP_BASE ((FIXADDR_BOOT_START - PAGE_SIZE*LAST_PKMAP) & PGDIR_MASK) #ifdef CONFIG_HIGHMEM -# define __VMAPPING_END (PKMAP_BASE & ~(HPAGE_SIZE-1)) +# define _VMALLOC_END (PKMAP_BASE & ~(HPAGE_SIZE-1)) #else -# define __VMAPPING_END (FIXADDR_START & ~(HPAGE_SIZE-1)) -#endif - -#ifdef CONFIG_HUGEVMAP -#define HUGE_VMAP_END __VMAPPING_END -#define HUGE_VMAP_BASE (HUGE_VMAP_END - CONFIG_NR_HUGE_VMAPS * HPAGE_SIZE) -#define _VMALLOC_END HUGE_VMAP_BASE -#else -#define _VMALLOC_END __VMAPPING_END +# define _VMALLOC_END (FIXADDR_START & ~(HPAGE_SIZE-1)) #endif /* diff --git a/arch/tile/include/asm/pgtable_64.h b/arch/tile/include/asm/pgtable_64.h index 3421177f7370..2c8a9cd102d3 100644 --- a/arch/tile/include/asm/pgtable_64.h +++ b/arch/tile/include/asm/pgtable_64.h @@ -52,12 +52,10 @@ * memory allocation code). The vmalloc code puts in an internal * guard page between each allocation. */ -#define _VMALLOC_END HUGE_VMAP_BASE +#define _VMALLOC_END MEM_SV_START #define VMALLOC_END _VMALLOC_END #define VMALLOC_START _VMALLOC_START -#define HUGE_VMAP_END (HUGE_VMAP_BASE + PGDIR_SIZE) - #ifndef __ASSEMBLY__ /* We have no pud since we are a three-level page table. */ diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c index 4c34caea9dd3..74c91729a62a 100644 --- a/arch/tile/kernel/setup.c +++ b/arch/tile/kernel/setup.c @@ -1268,8 +1268,7 @@ static void __init validate_va(void) if ((long)VMALLOC_START >= 0) early_panic( "Linux VMALLOC region below the 2GB line (%#lx)!\n" - "Reconfigure the kernel with fewer NR_HUGE_VMAPS\n" - "or smaller VMALLOC_RESERVE.\n", + "Reconfigure the kernel with smaller VMALLOC_RESERVE.\n", VMALLOC_START); #endif } diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c index 4c288f199453..6c0571216a9d 100644 --- a/arch/tile/mm/fault.c +++ b/arch/tile/mm/fault.c @@ -149,8 +149,6 @@ static inline int vmalloc_fault(pgd_t *pgd, unsigned long address) pmd_k = vmalloc_sync_one(pgd, address); if (!pmd_k) return -1; - if (pmd_huge(*pmd_k)) - return 0; /* support TILE huge_vmap() API */ pte_k = pte_offset_kernel(pmd_k, address); if (!pte_present(*pte_k)) return -1; diff --git a/arch/tile/mm/init.c b/arch/tile/mm/init.c index 4e316deb92fd..0fa1acfac79a 100644 --- a/arch/tile/mm/init.c +++ b/arch/tile/mm/init.c @@ -827,10 +827,6 @@ void __init mem_init(void) FIXADDR_START, FIXADDR_TOP + PAGE_SIZE - 1); printk(KERN_DEBUG " PKMAP %#lx - %#lx\n", PKMAP_BASE, PKMAP_ADDR(LAST_PKMAP) - 1); -#endif -#ifdef CONFIG_HUGEVMAP - printk(KERN_DEBUG " HUGEMAP %#lx - %#lx\n", - HUGE_VMAP_BASE, HUGE_VMAP_END - 1); #endif printk(KERN_DEBUG " VMALLOC %#lx - %#lx\n", _VMALLOC_START, _VMALLOC_END - 1); From 35fab6118f189823bd590ce2c56e66bacf674b97 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Mon, 9 Sep 2013 12:18:54 -0400 Subject: [PATCH 102/350] tile: remove stale arch/tile/kernel/futex_64.S This should have been removed with commit 47d632f9f8f3, but it was overlooked. Signed-off-by: Chris Metcalf --- arch/tile/kernel/futex_64.S | 55 ------------------------------------- 1 file changed, 55 deletions(-) delete mode 100644 arch/tile/kernel/futex_64.S diff --git a/arch/tile/kernel/futex_64.S b/arch/tile/kernel/futex_64.S deleted file mode 100644 index f465d1eda20f..000000000000 --- a/arch/tile/kernel/futex_64.S +++ /dev/null @@ -1,55 +0,0 @@ -/* - * Copyright 2011 Tilera Corporation. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation, version 2. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for - * more details. - * - * Atomically access user memory, but use MMU to avoid propagating - * kernel exceptions. - */ - -#include -#include -#include -#include -#include - -/* - * Provide a set of atomic memory operations supporting . - * - * r0: user address to manipulate - * r1: new value to write, or for cmpxchg, old value to compare against - * r2: (cmpxchg only) new value to write - * - * Return __get_user struct, r0 with value, r1 with error. - */ -#define FUTEX_OP(name, ...) \ -STD_ENTRY(futex_##name) \ - __VA_ARGS__; \ - { \ - move r1, zero; \ - jrp lr \ - }; \ - STD_ENDPROC(futex_##name); \ - .pushsection __ex_table,"a"; \ - .quad 1b, get_user_fault; \ - .popsection - - .pushsection .fixup,"ax" -get_user_fault: - { movei r1, -EFAULT; jrp lr } - ENDPROC(get_user_fault) - .popsection - -FUTEX_OP(cmpxchg, mtspr CMPEXCH_VALUE, r1; 1: cmpexch4 r0, r0, r2) -FUTEX_OP(set, 1: exch4 r0, r0, r1) -FUTEX_OP(add, 1: fetchadd4 r0, r0, r1) -FUTEX_OP(or, 1: fetchor4 r0, r0, r1) -FUTEX_OP(andn, nor r1, r1, zero; 1: fetchand4 r0, r0, r1) From 91ffdc842b8ac0f96b5283b0f0b72927b7dfa8c7 Mon Sep 17 00:00:00 2001 From: Emil Tantilov Date: Tue, 23 Jul 2013 01:56:58 +0000 Subject: [PATCH 103/350] ixgbe: fix ethtool loopback diagnostic with DCB enabled This patch disables DCB prior to running the loopback test. When DCB is enabled the frames may be modified on Tx (by adding vlan tag) which will fail the check on Rx. Signed-off-by: Emil Tantilov Tested-by: Phil Schmitt Tested-by: Jack Morgan Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c index 0e1b973659b0..08efc253fb8d 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c @@ -1805,6 +1805,10 @@ static int ixgbe_run_loopback_test(struct ixgbe_adapter *adapter) unsigned int size = 1024; netdev_tx_t tx_ret_val; struct sk_buff *skb; + u32 flags_orig = adapter->flags; + + /* DCB can modify the frames on Tx */ + adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED; /* allocate test skb */ skb = alloc_skb(size, GFP_KERNEL); @@ -1857,6 +1861,7 @@ static int ixgbe_run_loopback_test(struct ixgbe_adapter *adapter) /* free the original skb */ kfree_skb(skb); + adapter->flags = flags_orig; return ret_val; } From ed33ff66d8064e7b84459ad8ba49aad4cc67c269 Mon Sep 17 00:00:00 2001 From: Emil Tantilov Date: Fri, 30 Aug 2013 07:55:24 +0000 Subject: [PATCH 104/350] ixgbe: limit setting speed to only one at a time for QSFP modules QSFP+ modules do not support auto negotiation and should advertise only one speed at a time. This patch adds logic in ethtool to allow setting and reporting the advertised speed at either 1Gbps or 10Gbps, but not both. Also limits the speed set in ixgbe_sfp_link_config_subtask() to highest supported. Previously the link was set to whatever the supported speeds were. Signed-off-by: Emil Tantilov Tested-by: Phil Schmitt Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 13 +++++++++++++ drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 10 +++++++++- 2 files changed, 22 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c index 08efc253fb8d..b41db3be9184 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c @@ -186,6 +186,11 @@ static int ixgbe_get_settings(struct net_device *netdev, ecmd->advertising |= ADVERTISED_1000baseT_Full; if (supported_link & IXGBE_LINK_SPEED_100_FULL) ecmd->advertising |= ADVERTISED_100baseT_Full; + + if (hw->phy.multispeed_fiber && !autoneg) { + if (supported_link & IXGBE_LINK_SPEED_10GB_FULL) + ecmd->advertising = ADVERTISED_10000baseT_Full; + } } if (autoneg) { @@ -314,6 +319,14 @@ static int ixgbe_set_settings(struct net_device *netdev, if (ecmd->advertising & ~ecmd->supported) return -EINVAL; + /* only allow one speed at a time if no autoneg */ + if (!ecmd->autoneg && hw->phy.multispeed_fiber) { + if (ecmd->advertising == + (ADVERTISED_10000baseT_Full | + ADVERTISED_1000baseT_Full)) + return -EINVAL; + } + old = hw->phy.autoneg_advertised; advertised = 0; if (ecmd->advertising & ADVERTISED_10000baseT_Full) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index ae267868429b..0ade0cd5ef53 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -6000,8 +6000,16 @@ static void ixgbe_sfp_link_config_subtask(struct ixgbe_adapter *adapter) adapter->flags &= ~IXGBE_FLAG_NEED_LINK_CONFIG; speed = hw->phy.autoneg_advertised; - if ((!speed) && (hw->mac.ops.get_link_capabilities)) + if ((!speed) && (hw->mac.ops.get_link_capabilities)) { hw->mac.ops.get_link_capabilities(hw, &speed, &autoneg); + + /* setup the highest link when no autoneg */ + if (!autoneg) { + if (speed & IXGBE_LINK_SPEED_10GB_FULL) + speed = IXGBE_LINK_SPEED_10GB_FULL; + } + } + if (hw->mac.ops.setup_link) hw->mac.ops.setup_link(hw, speed, true); From 0f8fdab1334cbd7e65b705cb5db6c3c1d757ffa0 Mon Sep 17 00:00:00 2001 From: Emil Tantilov Date: Sat, 31 Aug 2013 03:08:20 +0000 Subject: [PATCH 105/350] ixgbe: fix ethtool reporting of supported links for SFP modules This patch resolves an issue where the driver will display incorrect info for Q/SFP+ modules that were inserted after the driver has been loaded. This patch adds a call to identify_phy() in ixgbe_get_settings() prior to calling get_link_capabilities() which needs the PHY data in order to determine the correct settings. Signed-off-by: Emil Tantilov Tested-by: Phil Schmitt Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c index b41db3be9184..e8649abf97c0 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c @@ -160,6 +160,13 @@ static int ixgbe_get_settings(struct net_device *netdev, bool autoneg = false; bool link_up; + /* SFP type is needed for get_link_capabilities */ + if (hw->phy.media_type & (ixgbe_media_type_fiber | + ixgbe_media_type_fiber_qsfp)) { + if (hw->phy.sfp_type == ixgbe_sfp_type_not_present) + hw->phy.ops.identify_sfp(hw); + } + hw->mac.ops.get_link_capabilities(hw, &supported_link, &autoneg); /* set the supported link speeds */ From 138953bb6a27fccc59eecd303578260c8c7409d2 Mon Sep 17 00:00:00 2001 From: David Ertman Date: Fri, 30 Aug 2013 05:45:25 +0000 Subject: [PATCH 106/350] e1000e: cleanup boolean comparison to true Removing a comparison to the boolean value true where simply interrogating the lvalue will produce the same result. Signed-off-by: David Ertman Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/e1000e/netdev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index e87e9b01f404..4ef786775acb 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -4868,7 +4868,7 @@ static void e1000_watchdog_task(struct work_struct *work) */ if ((hw->phy.type == e1000_phy_igp_3 || hw->phy.type == e1000_phy_bm) && - (hw->mac.autoneg == true) && + hw->mac.autoneg && (adapter->link_speed == SPEED_10 || adapter->link_speed == SPEED_100) && (adapter->link_duplex == HALF_DUPLEX)) { From c3a0dce35af02846bdaa1df437493e2fd547ec2f Mon Sep 17 00:00:00 2001 From: David Ertman Date: Thu, 5 Sep 2013 04:24:25 +0000 Subject: [PATCH 107/350] e1000e: fix overrun of PHY RAR array When copying the MAC RAR registers to PHY there is an error in the calculation of the rar_entry_count, which causes a write of unknown/ undefined register space in the MAC to unknown/undefined register space in the PHY. This patch fixes the overrun with writing to the PHY RAR and also fixes the ethtool offline register tests so that the correctly addressed registers have the appropriate bitmasks for R/W and RO bits for affected parts. Shawn Rader gets credit for finding and fixing the register overrun. Signed-off-by: Dave Ertman CC: Shawn Rader Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/e1000e/ethtool.c | 8 ++++++++ drivers/net/ethernet/intel/e1000e/ich8lan.c | 13 ++++++++----- drivers/net/ethernet/intel/e1000e/ich8lan.h | 2 +- 3 files changed, 17 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/intel/e1000e/ethtool.c b/drivers/net/ethernet/intel/e1000e/ethtool.c index a8633b8f0ac5..d14c8f53384c 100644 --- a/drivers/net/ethernet/intel/e1000e/ethtool.c +++ b/drivers/net/ethernet/intel/e1000e/ethtool.c @@ -922,6 +922,14 @@ static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data) else mask &= ~(1 << 30); } + if (mac->type == e1000_pch2lan) { + /* SHRAH[0,1,2] different than previous */ + if (i == 7) + mask &= 0xFFF4FFFF; + /* SHRAH[3] different than SHRAH[0,1,2] */ + if (i == 10) + mask |= (1 << 30); + } REG_PATTERN_TEST_ARRAY(E1000_RA, ((i << 1) + 1), mask, 0xFFFFFFFF); diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c index af08188d7e62..42f0f6717511 100644 --- a/drivers/net/ethernet/intel/e1000e/ich8lan.c +++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c @@ -1371,7 +1371,10 @@ static void e1000_rar_set_pch2lan(struct e1000_hw *hw, u8 *addr, u32 index) return; } - if (index < hw->mac.rar_entry_count) { + /* RAR[1-6] are owned by manageability. Skip those and program the + * next address into the SHRA register array. + */ + if (index < (u32)(hw->mac.rar_entry_count - 6)) { s32 ret_val; ret_val = e1000_acquire_swflag_ich8lan(hw); @@ -1962,8 +1965,8 @@ void e1000_copy_rx_addrs_to_phy_ich8lan(struct e1000_hw *hw) if (ret_val) goto release; - /* Copy both RAL/H (rar_entry_count) and SHRAL/H (+4) to PHY */ - for (i = 0; i < (hw->mac.rar_entry_count + 4); i++) { + /* Copy both RAL/H (rar_entry_count) and SHRAL/H to PHY */ + for (i = 0; i < (hw->mac.rar_entry_count); i++) { mac_reg = er32(RAL(i)); hw->phy.ops.write_reg_page(hw, BM_RAR_L(i), (u16)(mac_reg & 0xFFFF)); @@ -2007,10 +2010,10 @@ s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable) return ret_val; if (enable) { - /* Write Rx addresses (rar_entry_count for RAL/H, +4 for + /* Write Rx addresses (rar_entry_count for RAL/H, and * SHRAL/H) and initial CRC values to the MAC */ - for (i = 0; i < (hw->mac.rar_entry_count + 4); i++) { + for (i = 0; i < hw->mac.rar_entry_count; i++) { u8 mac_addr[ETH_ALEN] = { 0 }; u32 addr_high, addr_low; diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.h b/drivers/net/ethernet/intel/e1000e/ich8lan.h index 59865695b282..217090df33e7 100644 --- a/drivers/net/ethernet/intel/e1000e/ich8lan.h +++ b/drivers/net/ethernet/intel/e1000e/ich8lan.h @@ -98,7 +98,7 @@ #define PCIE_ICH8_SNOOP_ALL PCIE_NO_SNOOP_ALL #define E1000_ICH_RAR_ENTRIES 7 -#define E1000_PCH2_RAR_ENTRIES 5 /* RAR[0], SHRA[0-3] */ +#define E1000_PCH2_RAR_ENTRIES 11 /* RAR[0-6], SHRA[0-3] */ #define E1000_PCH_LPT_RAR_ENTRIES 12 /* RAR[0], SHRA[0-10] */ #define PHY_PAGE_SHIFT 5 From a2a69f0b35762410c4194f9827354310f68470be Mon Sep 17 00:00:00 2001 From: Libo Chen Date: Fri, 13 Sep 2013 14:52:03 -0700 Subject: [PATCH 108/350] drivers/atm/he.c: convert to module_pci_driver Signed-off-by: Libo Chen Cc: Chas Williams Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- drivers/atm/he.c | 13 +------------ 1 file changed, 1 insertion(+), 12 deletions(-) diff --git a/drivers/atm/he.c b/drivers/atm/he.c index 449f6298dc89..8557adcd34ee 100644 --- a/drivers/atm/he.c +++ b/drivers/atm/he.c @@ -2865,15 +2865,4 @@ static struct pci_driver he_driver = { .id_table = he_pci_tbl, }; -static int __init he_init(void) -{ - return pci_register_driver(&he_driver); -} - -static void __exit he_cleanup(void) -{ - pci_unregister_driver(&he_driver); -} - -module_init(he_init); -module_exit(he_cleanup); +module_pci_driver(he_driver); From 35a4a5733b0a8290de39558b82896ab795b108a7 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Fri, 13 Sep 2013 14:52:04 -0700 Subject: [PATCH 109/350] isdn: clean up debug format string usage Avoid unneeded local string buffers for constructing debug output. Also cleans up debug calls that contain a single parameter so that they cannot be accidentally parsed as format strings. Signed-off-by: Kees Cook Cc: Karsten Keil Cc: David Miller Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- drivers/isdn/hisax/amd7930_fn.c | 4 +-- drivers/isdn/hisax/avm_pci.c | 4 +-- drivers/isdn/hisax/config.c | 2 +- drivers/isdn/hisax/diva.c | 4 +-- drivers/isdn/hisax/elsa.c | 2 +- drivers/isdn/hisax/elsa_ser.c | 2 +- drivers/isdn/hisax/hfc_pci.c | 2 +- drivers/isdn/hisax/hfc_sx.c | 2 +- drivers/isdn/hisax/hscx_irq.c | 4 +-- drivers/isdn/hisax/icc.c | 4 +-- drivers/isdn/hisax/ipacx.c | 8 +++--- drivers/isdn/hisax/isac.c | 4 +-- drivers/isdn/hisax/isar.c | 6 ++-- drivers/isdn/hisax/jade.c | 18 ++++-------- drivers/isdn/hisax/jade_irq.c | 4 +-- drivers/isdn/hisax/l3_1tr6.c | 50 ++++++++++++--------------------- drivers/isdn/hisax/netjet.c | 2 +- drivers/isdn/hisax/q931.c | 6 ++-- drivers/isdn/hisax/w6692.c | 8 +++--- 19 files changed, 57 insertions(+), 79 deletions(-) diff --git a/drivers/isdn/hisax/amd7930_fn.c b/drivers/isdn/hisax/amd7930_fn.c index 1063babe1d3a..36817e0a0b94 100644 --- a/drivers/isdn/hisax/amd7930_fn.c +++ b/drivers/isdn/hisax/amd7930_fn.c @@ -314,7 +314,7 @@ Amd7930_empty_Dfifo(struct IsdnCardState *cs, int flag) t += sprintf(t, "Amd7930: empty_Dfifo cnt: %d |", cs->rcvidx); QuickHex(t, cs->rcvbuf, cs->rcvidx); - debugl1(cs, cs->dlog); + debugl1(cs, "%s", cs->dlog); } /* moves received data in sk-buffer */ memcpy(skb_put(skb, cs->rcvidx), cs->rcvbuf, cs->rcvidx); @@ -406,7 +406,7 @@ Amd7930_fill_Dfifo(struct IsdnCardState *cs) t += sprintf(t, "Amd7930: fill_Dfifo cnt: %d |", count); QuickHex(t, deb_ptr, count); - debugl1(cs, cs->dlog); + debugl1(cs, "%s", cs->dlog); } /* AMD interrupts on */ AmdIrqOn(cs); diff --git a/drivers/isdn/hisax/avm_pci.c b/drivers/isdn/hisax/avm_pci.c index ee9b9a03cffa..d1427bd6452d 100644 --- a/drivers/isdn/hisax/avm_pci.c +++ b/drivers/isdn/hisax/avm_pci.c @@ -285,7 +285,7 @@ hdlc_empty_fifo(struct BCState *bcs, int count) t += sprintf(t, "hdlc_empty_fifo %c cnt %d", bcs->channel ? 'B' : 'A', count); QuickHex(t, p, count); - debugl1(cs, bcs->blog); + debugl1(cs, "%s", bcs->blog); } } @@ -345,7 +345,7 @@ hdlc_fill_fifo(struct BCState *bcs) t += sprintf(t, "hdlc_fill_fifo %c cnt %d", bcs->channel ? 'B' : 'A', count); QuickHex(t, p, count); - debugl1(cs, bcs->blog); + debugl1(cs, "%s", bcs->blog); } } diff --git a/drivers/isdn/hisax/config.c b/drivers/isdn/hisax/config.c index bf04d2a3cf4a..b33f53b3ca93 100644 --- a/drivers/isdn/hisax/config.c +++ b/drivers/isdn/hisax/config.c @@ -1896,7 +1896,7 @@ static void EChannel_proc_rcv(struct hisax_d_if *d_if) ptr--; *ptr++ = '\n'; *ptr = 0; - HiSax_putstatus(cs, NULL, cs->dlog); + HiSax_putstatus(cs, NULL, "%s", cs->dlog); } else HiSax_putstatus(cs, "LogEcho: ", "warning Frame too big (%d)", diff --git a/drivers/isdn/hisax/diva.c b/drivers/isdn/hisax/diva.c index 8d0cf6e4dc00..4fc90de68d18 100644 --- a/drivers/isdn/hisax/diva.c +++ b/drivers/isdn/hisax/diva.c @@ -427,7 +427,7 @@ Memhscx_empty_fifo(struct BCState *bcs, int count) t += sprintf(t, "hscx_empty_fifo %c cnt %d", bcs->hw.hscx.hscx ? 'B' : 'A', count); QuickHex(t, ptr, count); - debugl1(cs, bcs->blog); + debugl1(cs, "%s", bcs->blog); } } @@ -469,7 +469,7 @@ Memhscx_fill_fifo(struct BCState *bcs) t += sprintf(t, "hscx_fill_fifo %c cnt %d", bcs->hw.hscx.hscx ? 'B' : 'A', count); QuickHex(t, ptr, count); - debugl1(cs, bcs->blog); + debugl1(cs, "%s", bcs->blog); } } diff --git a/drivers/isdn/hisax/elsa.c b/drivers/isdn/hisax/elsa.c index 1df6f9a56ca2..2be1c8a3bb5f 100644 --- a/drivers/isdn/hisax/elsa.c +++ b/drivers/isdn/hisax/elsa.c @@ -535,7 +535,7 @@ check_arcofi(struct IsdnCardState *cs) t = tmp; t += sprintf(tmp, "Arcofi data"); QuickHex(t, p, cs->dc.isac.mon_rxp); - debugl1(cs, tmp); + debugl1(cs, "%s", tmp); if ((cs->dc.isac.mon_rxp == 2) && (cs->dc.isac.mon_rx[0] == 0xa0)) { switch (cs->dc.isac.mon_rx[1]) { case 0x80: diff --git a/drivers/isdn/hisax/elsa_ser.c b/drivers/isdn/hisax/elsa_ser.c index d4c98d330bfe..3f84dd8f1757 100644 --- a/drivers/isdn/hisax/elsa_ser.c +++ b/drivers/isdn/hisax/elsa_ser.c @@ -344,7 +344,7 @@ static inline void receive_chars(struct IsdnCardState *cs, t += sprintf(t, "modem read cnt %d", cs->hw.elsa.rcvcnt); QuickHex(t, cs->hw.elsa.rcvbuf, cs->hw.elsa.rcvcnt); - debugl1(cs, tmp); + debugl1(cs, "%s", tmp); } cs->hw.elsa.rcvcnt = 0; } diff --git a/drivers/isdn/hisax/hfc_pci.c b/drivers/isdn/hisax/hfc_pci.c index 3ccd724ff8c2..497bd026c237 100644 --- a/drivers/isdn/hisax/hfc_pci.c +++ b/drivers/isdn/hisax/hfc_pci.c @@ -901,7 +901,7 @@ Begin: ptr--; *ptr++ = '\n'; *ptr = 0; - HiSax_putstatus(cs, NULL, cs->dlog); + HiSax_putstatus(cs, NULL, "%s", cs->dlog); } else HiSax_putstatus(cs, "LogEcho: ", "warning Frame too big (%d)", total - 3); } diff --git a/drivers/isdn/hisax/hfc_sx.c b/drivers/isdn/hisax/hfc_sx.c index dc4574f735ef..fa1fefd711cd 100644 --- a/drivers/isdn/hisax/hfc_sx.c +++ b/drivers/isdn/hisax/hfc_sx.c @@ -674,7 +674,7 @@ receive_emsg(struct IsdnCardState *cs) ptr--; *ptr++ = '\n'; *ptr = 0; - HiSax_putstatus(cs, NULL, cs->dlog); + HiSax_putstatus(cs, NULL, "%s", cs->dlog); } else HiSax_putstatus(cs, "LogEcho: ", "warning Frame too big (%d)", skb->len); } diff --git a/drivers/isdn/hisax/hscx_irq.c b/drivers/isdn/hisax/hscx_irq.c index f398d4838937..a8d6188402c6 100644 --- a/drivers/isdn/hisax/hscx_irq.c +++ b/drivers/isdn/hisax/hscx_irq.c @@ -75,7 +75,7 @@ hscx_empty_fifo(struct BCState *bcs, int count) t += sprintf(t, "hscx_empty_fifo %c cnt %d", bcs->hw.hscx.hscx ? 'B' : 'A', count); QuickHex(t, ptr, count); - debugl1(cs, bcs->blog); + debugl1(cs, "%s", bcs->blog); } } @@ -115,7 +115,7 @@ hscx_fill_fifo(struct BCState *bcs) t += sprintf(t, "hscx_fill_fifo %c cnt %d", bcs->hw.hscx.hscx ? 'B' : 'A', count); QuickHex(t, ptr, count); - debugl1(cs, bcs->blog); + debugl1(cs, "%s", bcs->blog); } } diff --git a/drivers/isdn/hisax/icc.c b/drivers/isdn/hisax/icc.c index db5321f6379b..51dae9167238 100644 --- a/drivers/isdn/hisax/icc.c +++ b/drivers/isdn/hisax/icc.c @@ -134,7 +134,7 @@ icc_empty_fifo(struct IsdnCardState *cs, int count) t += sprintf(t, "icc_empty_fifo cnt %d", count); QuickHex(t, ptr, count); - debugl1(cs, cs->dlog); + debugl1(cs, "%s", cs->dlog); } } @@ -176,7 +176,7 @@ icc_fill_fifo(struct IsdnCardState *cs) t += sprintf(t, "icc_fill_fifo cnt %d", count); QuickHex(t, ptr, count); - debugl1(cs, cs->dlog); + debugl1(cs, "%s", cs->dlog); } } diff --git a/drivers/isdn/hisax/ipacx.c b/drivers/isdn/hisax/ipacx.c index 74feb5c83067..5faa5de24305 100644 --- a/drivers/isdn/hisax/ipacx.c +++ b/drivers/isdn/hisax/ipacx.c @@ -260,7 +260,7 @@ dch_empty_fifo(struct IsdnCardState *cs, int count) t += sprintf(t, "dch_empty_fifo() cnt %d", count); QuickHex(t, ptr, count); - debugl1(cs, cs->dlog); + debugl1(cs, "%s", cs->dlog); } } @@ -307,7 +307,7 @@ dch_fill_fifo(struct IsdnCardState *cs) t += sprintf(t, "dch_fill_fifo() cnt %d", count); QuickHex(t, ptr, count); - debugl1(cs, cs->dlog); + debugl1(cs, "%s", cs->dlog); } } @@ -539,7 +539,7 @@ bch_empty_fifo(struct BCState *bcs, int count) t += sprintf(t, "bch_empty_fifo() B-%d cnt %d", hscx, count); QuickHex(t, ptr, count); - debugl1(cs, bcs->blog); + debugl1(cs, "%s", bcs->blog); } } @@ -582,7 +582,7 @@ bch_fill_fifo(struct BCState *bcs) t += sprintf(t, "chb_fill_fifo() B-%d cnt %d", hscx, count); QuickHex(t, ptr, count); - debugl1(cs, bcs->blog); + debugl1(cs, "%s", bcs->blog); } } diff --git a/drivers/isdn/hisax/isac.c b/drivers/isdn/hisax/isac.c index a365ccc1c99c..7fdf78f46433 100644 --- a/drivers/isdn/hisax/isac.c +++ b/drivers/isdn/hisax/isac.c @@ -137,7 +137,7 @@ isac_empty_fifo(struct IsdnCardState *cs, int count) t += sprintf(t, "isac_empty_fifo cnt %d", count); QuickHex(t, ptr, count); - debugl1(cs, cs->dlog); + debugl1(cs, "%s", cs->dlog); } } @@ -179,7 +179,7 @@ isac_fill_fifo(struct IsdnCardState *cs) t += sprintf(t, "isac_fill_fifo cnt %d", count); QuickHex(t, ptr, count); - debugl1(cs, cs->dlog); + debugl1(cs, "%s", cs->dlog); } } diff --git a/drivers/isdn/hisax/isar.c b/drivers/isdn/hisax/isar.c index 7fdf34704fe5..f4956c73aa11 100644 --- a/drivers/isdn/hisax/isar.c +++ b/drivers/isdn/hisax/isar.c @@ -74,7 +74,7 @@ sendmsg(struct IsdnCardState *cs, u_char his, u_char creg, u_char len, t = tmp; t += sprintf(t, "sendmbox cnt %d", len); QuickHex(t, &msg[len-i], (i > 64) ? 64 : i); - debugl1(cs, tmp); + debugl1(cs, "%s", tmp); i -= 64; } } @@ -105,7 +105,7 @@ rcv_mbox(struct IsdnCardState *cs, struct isar_reg *ireg, u_char *msg) t = tmp; t += sprintf(t, "rcv_mbox cnt %d", ireg->clsb); QuickHex(t, &msg[ireg->clsb - i], (i > 64) ? 64 : i); - debugl1(cs, tmp); + debugl1(cs, "%s", tmp); i -= 64; } } @@ -1248,7 +1248,7 @@ isar_int_main(struct IsdnCardState *cs) tp += sprintf(debbuf, "msg iis(%x) msb(%x)", ireg->iis, ireg->cmsb); QuickHex(tp, (u_char *)ireg->par, ireg->clsb); - debugl1(cs, debbuf); + debugl1(cs, "%s", debbuf); } break; case ISAR_IIS_INVMSG: diff --git a/drivers/isdn/hisax/jade.c b/drivers/isdn/hisax/jade.c index f946c58d8ab1..e2ae7871a209 100644 --- a/drivers/isdn/hisax/jade.c +++ b/drivers/isdn/hisax/jade.c @@ -81,10 +81,7 @@ modejade(struct BCState *bcs, int mode, int bc) int jade = bcs->hw.hscx.hscx; if (cs->debug & L1_DEB_HSCX) { - char tmp[40]; - sprintf(tmp, "jade %c mode %d ichan %d", - 'A' + jade, mode, bc); - debugl1(cs, tmp); + debugl1(cs, "jade %c mode %d ichan %d", 'A' + jade, mode, bc); } bcs->mode = mode; bcs->channel = bc; @@ -257,23 +254,18 @@ void clear_pending_jade_ints(struct IsdnCardState *cs) { int val; - char tmp[64]; cs->BC_Write_Reg(cs, 0, jade_HDLC_IMR, 0x00); cs->BC_Write_Reg(cs, 1, jade_HDLC_IMR, 0x00); val = cs->BC_Read_Reg(cs, 1, jade_HDLC_ISR); - sprintf(tmp, "jade B ISTA %x", val); - debugl1(cs, tmp); + debugl1(cs, "jade B ISTA %x", val); val = cs->BC_Read_Reg(cs, 0, jade_HDLC_ISR); - sprintf(tmp, "jade A ISTA %x", val); - debugl1(cs, tmp); + debugl1(cs, "jade A ISTA %x", val); val = cs->BC_Read_Reg(cs, 1, jade_HDLC_STAR); - sprintf(tmp, "jade B STAR %x", val); - debugl1(cs, tmp); + debugl1(cs, "jade B STAR %x", val); val = cs->BC_Read_Reg(cs, 0, jade_HDLC_STAR); - sprintf(tmp, "jade A STAR %x", val); - debugl1(cs, tmp); + debugl1(cs, "jade A STAR %x", val); /* Unmask ints */ cs->BC_Write_Reg(cs, 0, jade_HDLC_IMR, 0xF8); cs->BC_Write_Reg(cs, 1, jade_HDLC_IMR, 0xF8); diff --git a/drivers/isdn/hisax/jade_irq.c b/drivers/isdn/hisax/jade_irq.c index f521fc83dc76..b930da9b5aa6 100644 --- a/drivers/isdn/hisax/jade_irq.c +++ b/drivers/isdn/hisax/jade_irq.c @@ -65,7 +65,7 @@ jade_empty_fifo(struct BCState *bcs, int count) t += sprintf(t, "jade_empty_fifo %c cnt %d", bcs->hw.hscx.hscx ? 'B' : 'A', count); QuickHex(t, ptr, count); - debugl1(cs, bcs->blog); + debugl1(cs, "%s", bcs->blog); } } @@ -105,7 +105,7 @@ jade_fill_fifo(struct BCState *bcs) t += sprintf(t, "jade_fill_fifo %c cnt %d", bcs->hw.hscx.hscx ? 'B' : 'A', count); QuickHex(t, ptr, count); - debugl1(cs, bcs->blog); + debugl1(cs, "%s", bcs->blog); } } diff --git a/drivers/isdn/hisax/l3_1tr6.c b/drivers/isdn/hisax/l3_1tr6.c index 4c1bca5caa1d..875402e76d0a 100644 --- a/drivers/isdn/hisax/l3_1tr6.c +++ b/drivers/isdn/hisax/l3_1tr6.c @@ -63,7 +63,7 @@ l3_1tr6_error(struct l3_process *pc, u_char *msg, struct sk_buff *skb) { dev_kfree_skb(skb); if (pc->st->l3.debug & L3_DEB_WARN) - l3_debug(pc->st, msg); + l3_debug(pc->st, "%s", msg); l3_1tr6_release_req(pc, 0, NULL); } @@ -161,7 +161,6 @@ l3_1tr6_setup(struct l3_process *pc, u_char pr, void *arg) { u_char *p; int bcfound = 0; - char tmp[80]; struct sk_buff *skb = arg; /* Channel Identification */ @@ -214,10 +213,9 @@ l3_1tr6_setup(struct l3_process *pc, u_char pr, void *arg) /* Signal all services, linklevel takes care of Service-Indicator */ if (bcfound) { if ((pc->para.setup.si1 != 7) && (pc->st->l3.debug & L3_DEB_WARN)) { - sprintf(tmp, "non-digital call: %s -> %s", + l3_debug(pc->st, "non-digital call: %s -> %s", pc->para.setup.phone, pc->para.setup.eazmsn); - l3_debug(pc->st, tmp); } newl3state(pc, 6); pc->st->l3.l3l4(pc->st, CC_SETUP | INDICATION, pc); @@ -301,7 +299,7 @@ l3_1tr6_info(struct l3_process *pc, u_char pr, void *arg) { u_char *p; int i, tmpcharge = 0; - char a_charge[8], tmp[32]; + char a_charge[8]; struct sk_buff *skb = arg; p = skb->data; @@ -316,8 +314,8 @@ l3_1tr6_info(struct l3_process *pc, u_char pr, void *arg) pc->st->l3.l3l4(pc->st, CC_CHARGE | INDICATION, pc); } if (pc->st->l3.debug & L3_DEB_CHARGE) { - sprintf(tmp, "charging info %d", pc->para.chargeinfo); - l3_debug(pc->st, tmp); + l3_debug(pc->st, "charging info %d", + pc->para.chargeinfo); } } else if (pc->st->l3.debug & L3_DEB_CHARGE) l3_debug(pc->st, "charging info not found"); @@ -399,7 +397,7 @@ l3_1tr6_disc(struct l3_process *pc, u_char pr, void *arg) struct sk_buff *skb = arg; u_char *p; int i, tmpcharge = 0; - char a_charge[8], tmp[32]; + char a_charge[8]; StopAllL3Timer(pc); p = skb->data; @@ -414,8 +412,8 @@ l3_1tr6_disc(struct l3_process *pc, u_char pr, void *arg) pc->st->l3.l3l4(pc->st, CC_CHARGE | INDICATION, pc); } if (pc->st->l3.debug & L3_DEB_CHARGE) { - sprintf(tmp, "charging info %d", pc->para.chargeinfo); - l3_debug(pc->st, tmp); + l3_debug(pc->st, "charging info %d", + pc->para.chargeinfo); } } else if (pc->st->l3.debug & L3_DEB_CHARGE) l3_debug(pc->st, "charging info not found"); @@ -746,7 +744,6 @@ up1tr6(struct PStack *st, int pr, void *arg) int i, mt, cr; struct l3_process *proc; struct sk_buff *skb = arg; - char tmp[80]; switch (pr) { case (DL_DATA | INDICATION): @@ -762,26 +759,23 @@ up1tr6(struct PStack *st, int pr, void *arg) } if (skb->len < 4) { if (st->l3.debug & L3_DEB_PROTERR) { - sprintf(tmp, "up1tr6 len only %d", skb->len); - l3_debug(st, tmp); + l3_debug(st, "up1tr6 len only %d", skb->len); } dev_kfree_skb(skb); return; } if ((skb->data[0] & 0xfe) != PROTO_DIS_N0) { if (st->l3.debug & L3_DEB_PROTERR) { - sprintf(tmp, "up1tr6%sunexpected discriminator %x message len %d", + l3_debug(st, "up1tr6%sunexpected discriminator %x message len %d", (pr == (DL_DATA | INDICATION)) ? " " : "(broadcast) ", skb->data[0], skb->len); - l3_debug(st, tmp); } dev_kfree_skb(skb); return; } if (skb->data[1] != 1) { if (st->l3.debug & L3_DEB_PROTERR) { - sprintf(tmp, "up1tr6 CR len not 1"); - l3_debug(st, tmp); + l3_debug(st, "up1tr6 CR len not 1"); } dev_kfree_skb(skb); return; @@ -791,9 +785,8 @@ up1tr6(struct PStack *st, int pr, void *arg) if (skb->data[0] == PROTO_DIS_N0) { dev_kfree_skb(skb); if (st->l3.debug & L3_DEB_STATE) { - sprintf(tmp, "up1tr6%s N0 mt %x unhandled", + l3_debug(st, "up1tr6%s N0 mt %x unhandled", (pr == (DL_DATA | INDICATION)) ? " " : "(broadcast) ", mt); - l3_debug(st, tmp); } } else if (skb->data[0] == PROTO_DIS_N1) { if (!(proc = getl3proc(st, cr))) { @@ -801,8 +794,7 @@ up1tr6(struct PStack *st, int pr, void *arg) if (cr < 128) { if (!(proc = new_l3_process(st, cr))) { if (st->l3.debug & L3_DEB_PROTERR) { - sprintf(tmp, "up1tr6 no roc mem"); - l3_debug(st, tmp); + l3_debug(st, "up1tr6 no roc mem"); } dev_kfree_skb(skb); return; @@ -821,8 +813,7 @@ up1tr6(struct PStack *st, int pr, void *arg) } else { if (!(proc = new_l3_process(st, cr))) { if (st->l3.debug & L3_DEB_PROTERR) { - sprintf(tmp, "up1tr6 no roc mem"); - l3_debug(st, tmp); + l3_debug(st, "up1tr6 no roc mem"); } dev_kfree_skb(skb); return; @@ -837,18 +828,16 @@ up1tr6(struct PStack *st, int pr, void *arg) if (i == ARRAY_SIZE(datastln1)) { dev_kfree_skb(skb); if (st->l3.debug & L3_DEB_STATE) { - sprintf(tmp, "up1tr6%sstate %d mt %x unhandled", + l3_debug(st, "up1tr6%sstate %d mt %x unhandled", (pr == (DL_DATA | INDICATION)) ? " " : "(broadcast) ", proc->state, mt); - l3_debug(st, tmp); } return; } else { if (st->l3.debug & L3_DEB_STATE) { - sprintf(tmp, "up1tr6%sstate %d mt %x", + l3_debug(st, "up1tr6%sstate %d mt %x", (pr == (DL_DATA | INDICATION)) ? " " : "(broadcast) ", proc->state, mt); - l3_debug(st, tmp); } datastln1[i].rout(proc, pr, skb); } @@ -861,7 +850,6 @@ down1tr6(struct PStack *st, int pr, void *arg) int i, cr; struct l3_process *proc; struct Channel *chan; - char tmp[80]; if ((DL_ESTABLISH | REQUEST) == pr) { l3_msg(st, pr, NULL); @@ -888,15 +876,13 @@ down1tr6(struct PStack *st, int pr, void *arg) break; if (i == ARRAY_SIZE(downstl)) { if (st->l3.debug & L3_DEB_STATE) { - sprintf(tmp, "down1tr6 state %d prim %d unhandled", + l3_debug(st, "down1tr6 state %d prim %d unhandled", proc->state, pr); - l3_debug(st, tmp); } } else { if (st->l3.debug & L3_DEB_STATE) { - sprintf(tmp, "down1tr6 state %d prim %d", + l3_debug(st, "down1tr6 state %d prim %d", proc->state, pr); - l3_debug(st, tmp); } downstl[i].rout(proc, pr, arg); } diff --git a/drivers/isdn/hisax/netjet.c b/drivers/isdn/hisax/netjet.c index b646eed379df..233e432e06f6 100644 --- a/drivers/isdn/hisax/netjet.c +++ b/drivers/isdn/hisax/netjet.c @@ -176,7 +176,7 @@ static void printframe(struct IsdnCardState *cs, u_char *buf, int count, char *s else j = i; QuickHex(t, p, j); - debugl1(cs, tmp); + debugl1(cs, "%s", tmp); p += j; i -= j; t = tmp; diff --git a/drivers/isdn/hisax/q931.c b/drivers/isdn/hisax/q931.c index 041bf52d9d0a..af1b020a81f1 100644 --- a/drivers/isdn/hisax/q931.c +++ b/drivers/isdn/hisax/q931.c @@ -1179,7 +1179,7 @@ LogFrame(struct IsdnCardState *cs, u_char *buf, int size) dp--; *dp++ = '\n'; *dp = 0; - HiSax_putstatus(cs, NULL, cs->dlog); + HiSax_putstatus(cs, NULL, "%s", cs->dlog); } else HiSax_putstatus(cs, "LogFrame: ", "warning Frame too big (%d)", size); } @@ -1246,7 +1246,7 @@ dlogframe(struct IsdnCardState *cs, struct sk_buff *skb, int dir) } if (finish) { *dp = 0; - HiSax_putstatus(cs, NULL, cs->dlog); + HiSax_putstatus(cs, NULL, "%s", cs->dlog); return; } if ((0xfe & buf[0]) == PROTO_DIS_N0) { /* 1TR6 */ @@ -1509,5 +1509,5 @@ dlogframe(struct IsdnCardState *cs, struct sk_buff *skb, int dir) dp += sprintf(dp, "Unknown protocol %x!", buf[0]); } *dp = 0; - HiSax_putstatus(cs, NULL, cs->dlog); + HiSax_putstatus(cs, NULL, "%s", cs->dlog); } diff --git a/drivers/isdn/hisax/w6692.c b/drivers/isdn/hisax/w6692.c index d8cac6935818..a85895585d90 100644 --- a/drivers/isdn/hisax/w6692.c +++ b/drivers/isdn/hisax/w6692.c @@ -154,7 +154,7 @@ W6692_empty_fifo(struct IsdnCardState *cs, int count) t += sprintf(t, "W6692_empty_fifo cnt %d", count); QuickHex(t, ptr, count); - debugl1(cs, cs->dlog); + debugl1(cs, "%s", cs->dlog); } } @@ -196,7 +196,7 @@ W6692_fill_fifo(struct IsdnCardState *cs) t += sprintf(t, "W6692_fill_fifo cnt %d", count); QuickHex(t, ptr, count); - debugl1(cs, cs->dlog); + debugl1(cs, "%s", cs->dlog); } } @@ -226,7 +226,7 @@ W6692B_empty_fifo(struct BCState *bcs, int count) t += sprintf(t, "W6692B_empty_fifo %c cnt %d", bcs->channel + '1', count); QuickHex(t, ptr, count); - debugl1(cs, bcs->blog); + debugl1(cs, "%s", bcs->blog); } } @@ -264,7 +264,7 @@ W6692B_fill_fifo(struct BCState *bcs) t += sprintf(t, "W6692B_fill_fifo %c cnt %d", bcs->channel + '1', count); QuickHex(t, ptr, count); - debugl1(cs, bcs->blog); + debugl1(cs, "%s", bcs->blog); } } From 922bbe88c1ae6903f9a628c2fac2db81748527d8 Mon Sep 17 00:00:00 2001 From: Antonio Alecrim Jr Date: Fri, 13 Sep 2013 14:05:49 -0300 Subject: [PATCH 110/350] be2net: missing variable initialization Signed-off-by: Antonio Alecrim Jr Signed-off-by: David S. Miller --- drivers/net/ethernet/emulex/benet/be_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index 3224d28cdad4..100b528b9bd0 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -2802,7 +2802,7 @@ static int be_vfs_if_create(struct be_adapter *adapter) struct be_resources res = {0}; struct be_vf_cfg *vf_cfg; u32 cap_flags, en_flags, vf; - int status; + int status = 0; cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_MULTICAST; From c3eb7a771dcd2b27c02f4711545ac6785f66afc5 Mon Sep 17 00:00:00 2001 From: Yijing Wang Date: Wed, 11 Sep 2013 10:07:00 +0800 Subject: [PATCH 111/350] alx: remove redundant D0 power state set Pci_enable_device_mem() will set device power state to D0, so it's no need to do it again in alx_probe(). Also remove redundant PM Cap find code, because pci core has been saved the pci device pm cap value. Signed-off-by: Yijing Wang Signed-off-by: David S. Miller --- drivers/net/ethernet/atheros/alx/main.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/atheros/alx/main.c b/drivers/net/ethernet/atheros/alx/main.c index 027398ebbba6..fc95b235e210 100644 --- a/drivers/net/ethernet/atheros/alx/main.c +++ b/drivers/net/ethernet/atheros/alx/main.c @@ -1188,7 +1188,7 @@ static int alx_probe(struct pci_dev *pdev, const struct pci_device_id *ent) struct alx_priv *alx; struct alx_hw *hw; bool phy_configured; - int bars, pm_cap, err; + int bars, err; err = pci_enable_device_mem(pdev); if (err) @@ -1225,18 +1225,13 @@ static int alx_probe(struct pci_dev *pdev, const struct pci_device_id *ent) pci_enable_pcie_error_reporting(pdev); pci_set_master(pdev); - pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM); - if (pm_cap == 0) { + if (!pdev->pm_cap) { dev_err(&pdev->dev, "Can't find power management capability, aborting\n"); err = -EIO; goto out_pci_release; } - err = pci_set_power_state(pdev, PCI_D0); - if (err) - goto out_pci_release; - netdev = alloc_etherdev(sizeof(*alx)); if (!netdev) { err = -ENOMEM; From 29ed74c35088a775807743a5c84eecf6efa85d9f Mon Sep 17 00:00:00 2001 From: Jon Mason Date: Wed, 11 Sep 2013 11:22:39 -0700 Subject: [PATCH 112/350] bnx2x: Use pci_dev pm_cap Use the already existing pm_cap variable in struct pci_dev for determining the power management offset. This saves the driver from having to keep track of an extra variable. Signed-off-by: Jon Mason Cc: Eilon Greenstein Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x.h | 1 - drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 8 ++++---- drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c | 4 ++-- drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 10 +++++----- 4 files changed, 11 insertions(+), 12 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h index 0c338026ce01..70b6a05834d1 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h @@ -1542,7 +1542,6 @@ struct bnx2x { */ bool fcoe_init; - int pm_cap; int mrrs; struct delayed_work sp_task; diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c index 90045c920d09..61726af1de6e 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c @@ -3008,16 +3008,16 @@ int bnx2x_set_power_state(struct bnx2x *bp, pci_power_t state) u16 pmcsr; /* If there is no power capability, silently succeed */ - if (!bp->pm_cap) { + if (!bp->pdev->pm_cap) { BNX2X_DEV_INFO("No power capability. Breaking.\n"); return 0; } - pci_read_config_word(bp->pdev, bp->pm_cap + PCI_PM_CTRL, &pmcsr); + pci_read_config_word(bp->pdev, bp->pdev->pm_cap + PCI_PM_CTRL, &pmcsr); switch (state) { case PCI_D0: - pci_write_config_word(bp->pdev, bp->pm_cap + PCI_PM_CTRL, + pci_write_config_word(bp->pdev, bp->pdev->pm_cap + PCI_PM_CTRL, ((pmcsr & ~PCI_PM_CTRL_STATE_MASK) | PCI_PM_CTRL_PME_STATUS)); @@ -3041,7 +3041,7 @@ int bnx2x_set_power_state(struct bnx2x *bp, pci_power_t state) if (bp->wol) pmcsr |= PCI_PM_CTRL_PME_ENABLE; - pci_write_config_word(bp->pdev, bp->pm_cap + PCI_PM_CTRL, + pci_write_config_word(bp->pdev, bp->pdev->pm_cap + PCI_PM_CTRL, pmcsr); /* No more memory access after this point until diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c index 2612e3c715d4..324de5f05332 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c @@ -1387,9 +1387,9 @@ static bool bnx2x_is_nvm_accessible(struct bnx2x *bp) u16 pm = 0; struct net_device *dev = pci_get_drvdata(bp->pdev); - if (bp->pm_cap) + if (bp->pdev->pm_cap) rc = pci_read_config_word(bp->pdev, - bp->pm_cap + PCI_PM_CTRL, &pm); + bp->pdev->pm_cap + PCI_PM_CTRL, &pm); if ((rc && !netif_running(dev)) || (!rc && ((pm & PCI_PM_CTRL_STATE_MASK) != (__force u16)PCI_D0))) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index 2f8dbbbd7a86..62c59eda1239 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -8652,6 +8652,7 @@ u32 bnx2x_send_unload_req(struct bnx2x *bp, int unload_mode) else if (bp->wol) { u32 emac_base = port ? GRCBASE_EMAC1 : GRCBASE_EMAC0; u8 *mac_addr = bp->dev->dev_addr; + struct pci_dev *pdev = bp->pdev; u32 val; u16 pmc; @@ -8668,9 +8669,9 @@ u32 bnx2x_send_unload_req(struct bnx2x *bp, int unload_mode) EMAC_WR(bp, EMAC_REG_EMAC_MAC_MATCH + entry + 4, val); /* Enable the PME and clear the status */ - pci_read_config_word(bp->pdev, bp->pm_cap + PCI_PM_CTRL, &pmc); + pci_read_config_word(pdev, pdev->pm_cap + PCI_PM_CTRL, &pmc); pmc |= PCI_PM_CTRL_PME_ENABLE | PCI_PM_CTRL_PME_STATUS; - pci_write_config_word(bp->pdev, bp->pm_cap + PCI_PM_CTRL, pmc); + pci_write_config_word(pdev, pdev->pm_cap + PCI_PM_CTRL, pmc); reset_code = DRV_MSG_CODE_UNLOAD_REQ_WOL_EN; @@ -10399,7 +10400,7 @@ static void bnx2x_get_common_hwinfo(struct bnx2x *bp) break; } - pci_read_config_word(bp->pdev, bp->pm_cap + PCI_PM_PMC, &pmc); + pci_read_config_word(bp->pdev, bp->pdev->pm_cap + PCI_PM_PMC, &pmc); bp->flags |= (pmc & PCI_PM_CAP_PME_D3cold) ? 0 : NO_WOL_FLAG; BNX2X_DEV_INFO("%sWoL capable\n", @@ -12141,8 +12142,7 @@ static int bnx2x_init_dev(struct bnx2x *bp, struct pci_dev *pdev, } if (IS_PF(bp)) { - bp->pm_cap = pdev->pm_cap; - if (bp->pm_cap == 0) { + if (!pdev->pm_cap) { dev_err(&bp->pdev->dev, "Cannot find power management capability, aborting\n"); rc = -EIO; From 0319f30ee7e11b253067d8a621e410bcf0e0442b Mon Sep 17 00:00:00 2001 From: Jon Mason Date: Wed, 11 Sep 2013 11:22:40 -0700 Subject: [PATCH 113/350] tg3: Use pci_dev pm_cap Use the already existing pm_cap variable in struct pci_dev for determining the power management offset. This saves the driver from having to keep track of an extra variable. Signed-off-by: Jon Mason Cc: Nithin Nayak Sujir Cc: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/tg3.c | 5 ++--- drivers/net/ethernet/broadcom/tg3.h | 1 - 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index 9011ea0f5207..12d961c4ebca 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -16193,12 +16193,12 @@ static int tg3_get_invariants(struct tg3 *tp, const struct pci_device_id *ent) * So explicitly force the chip into D0 here. */ pci_read_config_dword(tp->pdev, - tp->pm_cap + PCI_PM_CTRL, + tp->pdev->pm_cap + PCI_PM_CTRL, &pm_reg); pm_reg &= ~PCI_PM_CTRL_STATE_MASK; pm_reg |= PCI_PM_CTRL_PME_ENABLE | 0 /* D0 */; pci_write_config_dword(tp->pdev, - tp->pm_cap + PCI_PM_CTRL, + tp->pdev->pm_cap + PCI_PM_CTRL, pm_reg); /* Also, force SERR#/PERR# in PCI command. */ @@ -17347,7 +17347,6 @@ static int tg3_init_one(struct pci_dev *pdev, tp = netdev_priv(dev); tp->pdev = pdev; tp->dev = dev; - tp->pm_cap = pdev->pm_cap; tp->rx_mode = TG3_DEF_RX_MODE; tp->tx_mode = TG3_DEF_TX_MODE; tp->irq_sync = 1; diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h index ddb8be1298ea..70257808aa37 100644 --- a/drivers/net/ethernet/broadcom/tg3.h +++ b/drivers/net/ethernet/broadcom/tg3.h @@ -3234,7 +3234,6 @@ struct tg3 { u8 pci_lat_timer; int pci_fn; - int pm_cap; int msi_cap; int pcix_cap; int pcie_readrq; From 9d8e3f9693245415db0b7c58551a91fa9fd1f9c7 Mon Sep 17 00:00:00 2001 From: Stephane Eranian Date: Fri, 13 Sep 2013 13:16:46 -0700 Subject: [PATCH 114/350] perf/x86/intel: Mark MEM_LOAD_UOPS_MISS_RETIRED as precise on SNB On Intel SNB (SNB, SNB-EP), the event MEM_LOAD_UOPS_MISS_RETIRED supports PEBS. It was missing for the SNB PEBS event constraint table thereby preventing any measurement with PEBS for it. This patch adds the event to the PEBS table for SNB. WARNING: it should be noted that this event like a few others are subject to the erratum BT241 for Xeon E5 (SNB-EP). As such, the event may undercount when used with PEBS unless the workaround is implemented. But without this patch and just the workaround, the kernel would not allow precise sampling on this event. BT241 is documented in: http://www.intel.com/content/dam/www/public/us/en/documents/specification-updates/xeon-e5-family-spec-update.pdf Signed-off-by: Stephane Eranian Cc: peterz@infradead.org Cc: ak@linux.intel.com Cc: zheng.z.yan@intel.com Link: http://lkml.kernel.org/r/20130913201646.GA23981@google.com Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/perf_event_intel_ds.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/kernel/cpu/perf_event_intel_ds.c b/arch/x86/kernel/cpu/perf_event_intel_ds.c index 3065c57a63c1..4ab70acd3a8d 100644 --- a/arch/x86/kernel/cpu/perf_event_intel_ds.c +++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c @@ -558,6 +558,7 @@ struct event_constraint intel_snb_pebs_event_constraints[] = { INTEL_EVENT_CONSTRAINT(0xd0, 0xf), /* MEM_UOP_RETIRED.* */ INTEL_EVENT_CONSTRAINT(0xd1, 0xf), /* MEM_LOAD_UOPS_RETIRED.* */ INTEL_EVENT_CONSTRAINT(0xd2, 0xf), /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.* */ + INTEL_EVENT_CONSTRAINT(0xd3, 0xf), /* MEM_LOAD_UOPS_LLC_MISS_RETIRED.* */ INTEL_UEVENT_CONSTRAINT(0x02d4, 0xf), /* MEM_LOAD_UOPS_MISC_RETIRED.LLC_MISS */ EVENT_CONSTRAINT_END }; From 0f531431d3de88efb4234d6c0ce22089ec035a38 Mon Sep 17 00:00:00 2001 From: Mathias Nyman Date: Fri, 13 Sep 2013 17:02:29 +0300 Subject: [PATCH 115/350] x86/intel/lpss: Add pin control support to Intel low power subsystem x86 chips with LPSS (low power subsystem) such as Lynxpoint and Baytrail have SoC like peripheral support and controllable pins. At the moment, Baytrail needs the pinctrl-baytrail driver to let peripherals control their gpio resources, but more pincontrol functions such as pin muxing and grouping are possible to add later. Signed-off-by: Mathias Nyman Reviewed-by: Mika Westerberg Cc: Rafael J. Wysocki Link: http://lkml.kernel.org/r/1379080949-21734-1-git-send-email-mathias.nyman@linux.intel.com Signed-off-by: Ingo Molnar --- arch/x86/Kconfig | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index b32ebf92b0ce..4d5843d5f64d 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -482,11 +482,12 @@ config X86_INTEL_LPSS bool "Intel Low Power Subsystem Support" depends on ACPI select COMMON_CLK + select PINCTRL ---help--- Select to build support for Intel Low Power Subsystem such as found on Intel Lynxpoint PCH. Selecting this option enables - things like clock tree (common clock framework) which are needed - by the LPSS peripheral drivers. + things like clock tree (common clock framework) and pincontrol + which are needed by the LPSS peripheral drivers. config X86_RDC321X bool "RDC R-321x SoC" From d2aebe338ac745f1934d01618f97a30f6bba5fec Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Thu, 12 Sep 2013 17:57:29 +0200 Subject: [PATCH 116/350] drm/udl: rip out set_need_resched This very much looks like copypasta from drm/i915's fault handler. It was used there to duct-tape over issues around gpu reset handling. Since that can't ever happen for udl and there's seemingly no other reason for this just drop it. Reported-by: Peter Zijlstra Acked-by: Peter Zijlstra Signed-off-by: Daniel Vetter Signed-off-by: Dave Airlie --- drivers/gpu/drm/udl/udl_gem.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/gpu/drm/udl/udl_gem.c b/drivers/gpu/drm/udl/udl_gem.c index 8dbe9d0ae9a7..8bf646183bac 100644 --- a/drivers/gpu/drm/udl/udl_gem.c +++ b/drivers/gpu/drm/udl/udl_gem.c @@ -97,7 +97,6 @@ int udl_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf) ret = vm_insert_page(vma, (unsigned long)vmf->virtual_address, page); switch (ret) { case -EAGAIN: - set_need_resched(); case 0: case -ERESTARTSYS: return VM_FAULT_NOPAGE; From c3eaa088277709d3e489c19a5a5b698eefbeb434 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 13 Sep 2013 09:23:48 -0400 Subject: [PATCH 117/350] drm/radeon/dpm/rs780: use drm_mode_vrefresh() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Rather than open coding it. Signed-off-by: Alex Deucher Reviewed-by: Christian König --- drivers/gpu/drm/radeon/rs780_dpm.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/gpu/drm/radeon/rs780_dpm.c b/drivers/gpu/drm/radeon/rs780_dpm.c index 828a7764660c..afb75845c161 100644 --- a/drivers/gpu/drm/radeon/rs780_dpm.c +++ b/drivers/gpu/drm/radeon/rs780_dpm.c @@ -62,9 +62,7 @@ static void rs780_get_pm_mode_parameters(struct radeon_device *rdev) radeon_crtc = to_radeon_crtc(crtc); pi->crtc_id = radeon_crtc->crtc_id; if (crtc->mode.htotal && crtc->mode.vtotal) - pi->refresh_rate = - (crtc->mode.clock * 1000) / - (crtc->mode.htotal * crtc->mode.vtotal); + pi->refresh_rate = drm_mode_vrefresh(&crtc->mode); break; } } From ce7b30e02578dda6b2263b05308c640f3b57d32c Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 13 Sep 2013 09:57:50 -0400 Subject: [PATCH 118/350] drm/radeon/dpm/rs780: add some sanity checking to sclk scaling MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Since the clock scaling is based on fb divider adjustments, make sure the other pll parameters are the same. Signed-off-by: Alex Deucher Reviewed-by: Christian König --- drivers/gpu/drm/radeon/rs780_dpm.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/radeon/rs780_dpm.c b/drivers/gpu/drm/radeon/rs780_dpm.c index afb75845c161..31487ce294cf 100644 --- a/drivers/gpu/drm/radeon/rs780_dpm.c +++ b/drivers/gpu/drm/radeon/rs780_dpm.c @@ -449,6 +449,12 @@ static int rs780_set_engine_clock_scaling(struct radeon_device *rdev, if (ret) return ret; + if ((min_dividers.ref_div != max_dividers.ref_div) || + (min_dividers.post_div != max_dividers.post_div) || + (max_dividers.ref_div != current_max_dividers.ref_div) || + (max_dividers.post_div != current_max_dividers.post_div)) + return -EINVAL; + rs780_force_fbdiv(rdev, max_dividers.fb_div); if (max_dividers.fb_div > min_dividers.fb_div) { From e40210cca98068835acd5a4fe760bf96b3a1aa48 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 13 Sep 2013 10:55:10 -0400 Subject: [PATCH 119/350] drm/radeon/dpm/rs780: don't enable sclk scaling if not required MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit If the low and high sclks are the same, there is no need to enable sclk scaling. This causes display stability issues on certain boards. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=60857 Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Reviewed-by: Christian König --- drivers/gpu/drm/radeon/rs780_dpm.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/radeon/rs780_dpm.c b/drivers/gpu/drm/radeon/rs780_dpm.c index 31487ce294cf..eb336bf5a54e 100644 --- a/drivers/gpu/drm/radeon/rs780_dpm.c +++ b/drivers/gpu/drm/radeon/rs780_dpm.c @@ -499,6 +499,9 @@ static void rs780_activate_engine_clk_scaling(struct radeon_device *rdev, (new_state->sclk_low == old_state->sclk_low)) return; + if (new_state->sclk_high == new_state->sclk_low) + return; + rs780_clk_scaling_enable(rdev, true); } From c2ee29d00266a9a80fb312042b14a56f8baf978d Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 13 Sep 2013 11:04:28 -0400 Subject: [PATCH 120/350] drm/radeon/dpm/rs780: fix force_performance state for same sclks MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit If the low and high sclks within a power state are the same, there no need to enable sclk scaling. Enabling sclk scaling can cause display stability issues on some boards. Signed-off-by: Alex Deucher Reviewed-by: Christian König --- drivers/gpu/drm/radeon/rs780_dpm.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/radeon/rs780_dpm.c b/drivers/gpu/drm/radeon/rs780_dpm.c index eb336bf5a54e..6af8505cf4d2 100644 --- a/drivers/gpu/drm/radeon/rs780_dpm.c +++ b/drivers/gpu/drm/radeon/rs780_dpm.c @@ -1043,8 +1043,10 @@ int rs780_dpm_force_performance_level(struct radeon_device *rdev, if (pi->voltage_control) rs780_force_voltage(rdev, pi->max_voltage); - WREG32_P(FVTHROT_FBDIV_REG1, 0, ~FORCE_FEEDBACK_DIV); - rs780_clk_scaling_enable(rdev, true); + if (ps->sclk_high != ps->sclk_low) { + WREG32_P(FVTHROT_FBDIV_REG1, 0, ~FORCE_FEEDBACK_DIV); + rs780_clk_scaling_enable(rdev, true); + } if (pi->voltage_control) { rs780_voltage_scaling_enable(rdev, true); From d592fca9407d065f0754ba29790c66ecbc0366ad Mon Sep 17 00:00:00 2001 From: Damien Lespiau Date: Fri, 13 Sep 2013 16:37:28 +0100 Subject: [PATCH 121/350] drm/radeon: Fix hmdi typo I keep making that one, so checked if I was the only one. Apparently not. Cc: Alex Deucher Signed-off-by: Damien Lespiau Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/r600d.h | 2 +- drivers/gpu/drm/radeon/radeon_connectors.c | 2 +- drivers/gpu/drm/radeon/rv770d.h | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/radeon/r600d.h b/drivers/gpu/drm/radeon/r600d.h index 454f90a849e4..e673fe26ea84 100644 --- a/drivers/gpu/drm/radeon/r600d.h +++ b/drivers/gpu/drm/radeon/r600d.h @@ -1040,7 +1040,7 @@ # define HDMI0_AVI_INFO_CONT (1 << 1) # define HDMI0_AUDIO_INFO_SEND (1 << 4) # define HDMI0_AUDIO_INFO_CONT (1 << 5) -# define HDMI0_AUDIO_INFO_SOURCE (1 << 6) /* 0 - sound block; 1 - hmdi regs */ +# define HDMI0_AUDIO_INFO_SOURCE (1 << 6) /* 0 - sound block; 1 - hdmi regs */ # define HDMI0_AUDIO_INFO_UPDATE (1 << 7) # define HDMI0_MPEG_INFO_SEND (1 << 8) # define HDMI0_MPEG_INFO_CONT (1 << 9) diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index cbbdc8500881..f7c8c6e0e9fc 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -1435,7 +1435,7 @@ radeon_dp_detect(struct drm_connector *connector, bool force) if (radeon_dp_getdpcd(radeon_connector)) ret = connector_status_connected; } else { - /* try non-aux ddc (DP to DVI/HMDI/etc. adapter) */ + /* try non-aux ddc (DP to DVI/HDMI/etc. adapter) */ if (radeon_ddc_probe(radeon_connector, false)) ret = connector_status_connected; } diff --git a/drivers/gpu/drm/radeon/rv770d.h b/drivers/gpu/drm/radeon/rv770d.h index 9fe60e542922..1ae277152cc7 100644 --- a/drivers/gpu/drm/radeon/rv770d.h +++ b/drivers/gpu/drm/radeon/rv770d.h @@ -852,7 +852,7 @@ #define AFMT_VBI_PACKET_CONTROL 0x7608 # define AFMT_GENERIC0_UPDATE (1 << 2) #define AFMT_INFOFRAME_CONTROL0 0x760c -# define AFMT_AUDIO_INFO_SOURCE (1 << 6) /* 0 - sound block; 1 - hmdi regs */ +# define AFMT_AUDIO_INFO_SOURCE (1 << 6) /* 0 - sound block; 1 - hdmi regs */ # define AFMT_AUDIO_INFO_UPDATE (1 << 7) # define AFMT_MPEG_INFO_UPDATE (1 << 10) #define AFMT_GENERIC0_7 0x7610 From 1cd8b21aa22c4fe8835abe614da5fa989c66dca9 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 13 Sep 2013 14:07:03 -0400 Subject: [PATCH 122/350] drm/radeon/dpm: rework auto performance level enable Calling force_performance_level() from set_power_state() doesn't work on some asics because the current power state pointer has not been properly updated at that point. Move the calls to force_performance_level() out of the asic specific set_power_state() functions and into the main power state sequence. Fixes dpm resume on SI. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/btc_dpm.c | 6 ------ drivers/gpu/drm/radeon/ci_dpm.c | 6 ------ drivers/gpu/drm/radeon/cypress_dpm.c | 6 ------ drivers/gpu/drm/radeon/kv_dpm.c | 1 - drivers/gpu/drm/radeon/ni_dpm.c | 6 ------ drivers/gpu/drm/radeon/radeon_pm.c | 14 +++++++++----- drivers/gpu/drm/radeon/rv6xx_dpm.c | 2 -- drivers/gpu/drm/radeon/rv770_dpm.c | 6 ------ drivers/gpu/drm/radeon/si_dpm.c | 6 ------ drivers/gpu/drm/radeon/sumo_dpm.c | 2 -- drivers/gpu/drm/radeon/trinity_dpm.c | 1 - 11 files changed, 9 insertions(+), 47 deletions(-) diff --git a/drivers/gpu/drm/radeon/btc_dpm.c b/drivers/gpu/drm/radeon/btc_dpm.c index 084e69414fd1..05ff315e8e9e 100644 --- a/drivers/gpu/drm/radeon/btc_dpm.c +++ b/drivers/gpu/drm/radeon/btc_dpm.c @@ -2340,12 +2340,6 @@ int btc_dpm_set_power_state(struct radeon_device *rdev) return ret; } - ret = rv770_dpm_force_performance_level(rdev, RADEON_DPM_FORCED_LEVEL_AUTO); - if (ret) { - DRM_ERROR("rv770_dpm_force_performance_level failed\n"); - return ret; - } - return 0; } diff --git a/drivers/gpu/drm/radeon/ci_dpm.c b/drivers/gpu/drm/radeon/ci_dpm.c index 3cce533397c6..899627443030 100644 --- a/drivers/gpu/drm/radeon/ci_dpm.c +++ b/drivers/gpu/drm/radeon/ci_dpm.c @@ -4748,12 +4748,6 @@ int ci_dpm_set_power_state(struct radeon_device *rdev) if (pi->pcie_performance_request) ci_notify_link_speed_change_after_state_change(rdev, new_ps, old_ps); - ret = ci_dpm_force_performance_level(rdev, RADEON_DPM_FORCED_LEVEL_AUTO); - if (ret) { - DRM_ERROR("ci_dpm_force_performance_level failed\n"); - return ret; - } - cik_update_cg(rdev, (RADEON_CG_BLOCK_GFX | RADEON_CG_BLOCK_MC | RADEON_CG_BLOCK_SDMA | diff --git a/drivers/gpu/drm/radeon/cypress_dpm.c b/drivers/gpu/drm/radeon/cypress_dpm.c index 95a66db08d9b..91bb470de0a3 100644 --- a/drivers/gpu/drm/radeon/cypress_dpm.c +++ b/drivers/gpu/drm/radeon/cypress_dpm.c @@ -2014,12 +2014,6 @@ int cypress_dpm_set_power_state(struct radeon_device *rdev) if (eg_pi->pcie_performance_request) cypress_notify_link_speed_change_after_state_change(rdev, new_ps, old_ps); - ret = rv770_dpm_force_performance_level(rdev, RADEON_DPM_FORCED_LEVEL_AUTO); - if (ret) { - DRM_ERROR("rv770_dpm_force_performance_level failed\n"); - return ret; - } - return 0; } diff --git a/drivers/gpu/drm/radeon/kv_dpm.c b/drivers/gpu/drm/radeon/kv_dpm.c index b98b9c97b732..71399065db04 100644 --- a/drivers/gpu/drm/radeon/kv_dpm.c +++ b/drivers/gpu/drm/radeon/kv_dpm.c @@ -1854,7 +1854,6 @@ int kv_dpm_set_power_state(struct radeon_device *rdev) RADEON_CG_BLOCK_BIF | RADEON_CG_BLOCK_HDP), true); - rdev->pm.dpm.forced_level = RADEON_DPM_FORCED_LEVEL_AUTO; return 0; } diff --git a/drivers/gpu/drm/radeon/ni_dpm.c b/drivers/gpu/drm/radeon/ni_dpm.c index f7b625c9e0e9..6c398a456d78 100644 --- a/drivers/gpu/drm/radeon/ni_dpm.c +++ b/drivers/gpu/drm/radeon/ni_dpm.c @@ -3865,12 +3865,6 @@ int ni_dpm_set_power_state(struct radeon_device *rdev) return ret; } - ret = ni_dpm_force_performance_level(rdev, RADEON_DPM_FORCED_LEVEL_AUTO); - if (ret) { - DRM_ERROR("ni_dpm_force_performance_level failed\n"); - return ret; - } - return 0; } diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index d41ac8a4224d..87e1d69e8fdb 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -917,10 +917,13 @@ static void radeon_dpm_change_power_state_locked(struct radeon_device *rdev) radeon_dpm_post_set_power_state(rdev); - /* force low perf level for thermal */ - if (rdev->pm.dpm.thermal_active && - rdev->asic->dpm.force_performance_level) { - radeon_dpm_force_performance_level(rdev, RADEON_DPM_FORCED_LEVEL_LOW); + if (rdev->asic->dpm.force_performance_level) { + if (rdev->pm.dpm.thermal_active) + /* force low perf level for thermal */ + radeon_dpm_force_performance_level(rdev, RADEON_DPM_FORCED_LEVEL_LOW); + else + /* otherwise, enable auto */ + radeon_dpm_force_performance_level(rdev, RADEON_DPM_FORCED_LEVEL_AUTO); } done: @@ -1149,9 +1152,10 @@ static int radeon_pm_init_dpm(struct radeon_device *rdev) { int ret; - /* default to performance state */ + /* default to balanced state */ rdev->pm.dpm.state = POWER_STATE_TYPE_BALANCED; rdev->pm.dpm.user_state = POWER_STATE_TYPE_BALANCED; + rdev->pm.dpm.forced_level = RADEON_DPM_FORCED_LEVEL_AUTO; rdev->pm.default_sclk = rdev->clock.default_sclk; rdev->pm.default_mclk = rdev->clock.default_mclk; rdev->pm.current_sclk = rdev->clock.default_sclk; diff --git a/drivers/gpu/drm/radeon/rv6xx_dpm.c b/drivers/gpu/drm/radeon/rv6xx_dpm.c index ab1f2016f21e..5811d277a36a 100644 --- a/drivers/gpu/drm/radeon/rv6xx_dpm.c +++ b/drivers/gpu/drm/radeon/rv6xx_dpm.c @@ -1758,8 +1758,6 @@ int rv6xx_dpm_set_power_state(struct radeon_device *rdev) rv6xx_set_uvd_clock_after_set_eng_clock(rdev, new_ps, old_ps); - rdev->pm.dpm.forced_level = RADEON_DPM_FORCED_LEVEL_AUTO; - return 0; } diff --git a/drivers/gpu/drm/radeon/rv770_dpm.c b/drivers/gpu/drm/radeon/rv770_dpm.c index 7282ce7dab76..913b025ae9b3 100644 --- a/drivers/gpu/drm/radeon/rv770_dpm.c +++ b/drivers/gpu/drm/radeon/rv770_dpm.c @@ -2064,12 +2064,6 @@ int rv770_dpm_set_power_state(struct radeon_device *rdev) rv770_program_dcodt_after_state_switch(rdev, new_ps, old_ps); rv770_set_uvd_clock_after_set_eng_clock(rdev, new_ps, old_ps); - ret = rv770_dpm_force_performance_level(rdev, RADEON_DPM_FORCED_LEVEL_AUTO); - if (ret) { - DRM_ERROR("rv770_dpm_force_performance_level failed\n"); - return ret; - } - return 0; } diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c index 5be9b4e72350..cfe5d4d28915 100644 --- a/drivers/gpu/drm/radeon/si_dpm.c +++ b/drivers/gpu/drm/radeon/si_dpm.c @@ -6075,12 +6075,6 @@ int si_dpm_set_power_state(struct radeon_device *rdev) return ret; } - ret = si_dpm_force_performance_level(rdev, RADEON_DPM_FORCED_LEVEL_AUTO); - if (ret) { - DRM_ERROR("si_dpm_force_performance_level failed\n"); - return ret; - } - si_update_cg(rdev, (RADEON_CG_BLOCK_GFX | RADEON_CG_BLOCK_MC | RADEON_CG_BLOCK_SDMA | diff --git a/drivers/gpu/drm/radeon/sumo_dpm.c b/drivers/gpu/drm/radeon/sumo_dpm.c index 864761c0120e..96ea6db8bf57 100644 --- a/drivers/gpu/drm/radeon/sumo_dpm.c +++ b/drivers/gpu/drm/radeon/sumo_dpm.c @@ -1319,8 +1319,6 @@ int sumo_dpm_set_power_state(struct radeon_device *rdev) if (pi->enable_dpm) sumo_set_uvd_clock_after_set_eng_clock(rdev, new_ps, old_ps); - rdev->pm.dpm.forced_level = RADEON_DPM_FORCED_LEVEL_AUTO; - return 0; } diff --git a/drivers/gpu/drm/radeon/trinity_dpm.c b/drivers/gpu/drm/radeon/trinity_dpm.c index 4beb9992294a..7f998bf1cc9d 100644 --- a/drivers/gpu/drm/radeon/trinity_dpm.c +++ b/drivers/gpu/drm/radeon/trinity_dpm.c @@ -1236,7 +1236,6 @@ int trinity_dpm_set_power_state(struct radeon_device *rdev) trinity_force_level_0(rdev); trinity_unforce_levels(rdev); trinity_set_uvd_clock_after_set_eng_clock(rdev, new_ps, old_ps); - rdev->pm.dpm.forced_level = RADEON_DPM_FORCED_LEVEL_AUTO; } trinity_release_mutex(rdev); From 855f5f1d882a34e4e9dd27b299737cd3508a5624 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 13 Sep 2013 18:33:16 -0400 Subject: [PATCH 123/350] drm/radeon: fix panel scaling with eDP and LVDS bridges We were using the wrong set_properly callback so we always ended up with Full scaling even if something else (Center or Full aspect) was selected. Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/radeon_connectors.c | 34 ++++++++++++++++++++-- 1 file changed, 31 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index f7c8c6e0e9fc..79159b5da05b 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -1504,6 +1504,24 @@ static const struct drm_connector_funcs radeon_dp_connector_funcs = { .force = radeon_dvi_force, }; +static const struct drm_connector_funcs radeon_edp_connector_funcs = { + .dpms = drm_helper_connector_dpms, + .detect = radeon_dp_detect, + .fill_modes = drm_helper_probe_single_connector_modes, + .set_property = radeon_lvds_set_property, + .destroy = radeon_dp_connector_destroy, + .force = radeon_dvi_force, +}; + +static const struct drm_connector_funcs radeon_lvds_bridge_connector_funcs = { + .dpms = drm_helper_connector_dpms, + .detect = radeon_dp_detect, + .fill_modes = drm_helper_probe_single_connector_modes, + .set_property = radeon_lvds_set_property, + .destroy = radeon_dp_connector_destroy, + .force = radeon_dvi_force, +}; + void radeon_add_atom_connector(struct drm_device *dev, uint32_t connector_id, @@ -1595,8 +1613,6 @@ radeon_add_atom_connector(struct drm_device *dev, goto failed; radeon_dig_connector->igp_lane_info = igp_lane_info; radeon_connector->con_priv = radeon_dig_connector; - drm_connector_init(dev, &radeon_connector->base, &radeon_dp_connector_funcs, connector_type); - drm_connector_helper_add(&radeon_connector->base, &radeon_dp_connector_helper_funcs); if (i2c_bus->valid) { /* add DP i2c bus */ if (connector_type == DRM_MODE_CONNECTOR_eDP) @@ -1613,6 +1629,10 @@ radeon_add_atom_connector(struct drm_device *dev, case DRM_MODE_CONNECTOR_VGA: case DRM_MODE_CONNECTOR_DVIA: default: + drm_connector_init(dev, &radeon_connector->base, + &radeon_dp_connector_funcs, connector_type); + drm_connector_helper_add(&radeon_connector->base, + &radeon_dp_connector_helper_funcs); connector->interlace_allowed = true; connector->doublescan_allowed = true; radeon_connector->dac_load_detect = true; @@ -1625,6 +1645,10 @@ radeon_add_atom_connector(struct drm_device *dev, case DRM_MODE_CONNECTOR_HDMIA: case DRM_MODE_CONNECTOR_HDMIB: case DRM_MODE_CONNECTOR_DisplayPort: + drm_connector_init(dev, &radeon_connector->base, + &radeon_dp_connector_funcs, connector_type); + drm_connector_helper_add(&radeon_connector->base, + &radeon_dp_connector_helper_funcs); drm_object_attach_property(&radeon_connector->base.base, rdev->mode_info.underscan_property, UNDERSCAN_OFF); @@ -1652,6 +1676,10 @@ radeon_add_atom_connector(struct drm_device *dev, break; case DRM_MODE_CONNECTOR_LVDS: case DRM_MODE_CONNECTOR_eDP: + drm_connector_init(dev, &radeon_connector->base, + &radeon_lvds_bridge_connector_funcs, connector_type); + drm_connector_helper_add(&radeon_connector->base, + &radeon_dp_connector_helper_funcs); drm_object_attach_property(&radeon_connector->base.base, dev->mode_config.scaling_mode_property, DRM_MODE_SCALE_FULLSCREEN); @@ -1830,7 +1858,7 @@ radeon_add_atom_connector(struct drm_device *dev, goto failed; radeon_dig_connector->igp_lane_info = igp_lane_info; radeon_connector->con_priv = radeon_dig_connector; - drm_connector_init(dev, &radeon_connector->base, &radeon_dp_connector_funcs, connector_type); + drm_connector_init(dev, &radeon_connector->base, &radeon_edp_connector_funcs, connector_type); drm_connector_helper_add(&radeon_connector->base, &radeon_dp_connector_helper_funcs); if (i2c_bus->valid) { /* add DP i2c bus */ From 4f66c59922cbcda14c9e103e6c7f4ee616360d43 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Sun, 15 Sep 2013 13:31:28 +0200 Subject: [PATCH 124/350] drm/radeon: avoid UVD corruptions on AGP cards MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Putting everything into VRAM seems to help. Signed-off-by: Christian König Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/radeon_cs.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c index 27ea00489ecc..ac6ece61a476 100644 --- a/drivers/gpu/drm/radeon/radeon_cs.c +++ b/drivers/gpu/drm/radeon/radeon_cs.c @@ -81,9 +81,11 @@ static int radeon_cs_parser_relocs(struct radeon_cs_parser *p) p->relocs[i].lobj.bo = p->relocs[i].robj; p->relocs[i].lobj.written = !!r->write_domain; - /* the first reloc of an UVD job is the - msg and that must be in VRAM */ - if (p->ring == R600_RING_TYPE_UVD_INDEX && i == 0) { + /* the first reloc of an UVD job is the msg and that must be in + VRAM, also but everything into VRAM on AGP cards to avoid + image corruptions */ + if (p->ring == R600_RING_TYPE_UVD_INDEX && + (i == 0 || p->rdev->flags & RADEON_IS_AGP)) { /* TODO: is this still needed for NI+ ? */ p->relocs[i].lobj.domain = RADEON_GEM_DOMAIN_VRAM; From 44a272ddfdd7e71871fdc13e429b71eba32404d0 Mon Sep 17 00:00:00 2001 From: Michael Opdenacker Date: Fri, 13 Sep 2013 05:44:38 +0200 Subject: [PATCH 125/350] net: fec: remove deprecated IRQF_DISABLED This patch proposes to remove the IRQF_DISABLED flag from drivers/net/ethernet/freescale/fec_main.c It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker Signed-off-by: David S. Miller --- drivers/net/ethernet/freescale/fec_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index f9aacf5d8523..b2793b91cc55 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -2199,7 +2199,7 @@ fec_probe(struct platform_device *pdev) goto failed_irq; } ret = devm_request_irq(&pdev->dev, irq, fec_enet_interrupt, - IRQF_DISABLED, pdev->name, ndev); + 0, pdev->name, ndev); if (ret) goto failed_irq; } From c023e28bf678e3f1ae01002950a2e3ae458e5c0b Mon Sep 17 00:00:00 2001 From: Michael Opdenacker Date: Fri, 13 Sep 2013 05:51:24 +0200 Subject: [PATCH 126/350] net: hp100: remove deprecated IRQF_DISABLED This patch proposes to remove the IRQF_DISABLED flag from drivers/net/ethernet/hp/hp100.c It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker Signed-off-by: David S. Miller --- drivers/net/ethernet/hp/hp100.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/hp/hp100.c b/drivers/net/ethernet/hp/hp100.c index e3c7c697fc45..91227d03274e 100644 --- a/drivers/net/ethernet/hp/hp100.c +++ b/drivers/net/ethernet/hp/hp100.c @@ -1097,7 +1097,7 @@ static int hp100_open(struct net_device *dev) /* New: if bus is PCI or EISA, interrupts might be shared interrupts */ if (request_irq(dev->irq, hp100_interrupt, lp->bus == HP100_BUS_PCI || lp->bus == - HP100_BUS_EISA ? IRQF_SHARED : IRQF_DISABLED, + HP100_BUS_EISA ? IRQF_SHARED : 0, "hp100", dev)) { printk("hp100: %s: unable to get IRQ %d\n", dev->name, dev->irq); return -EAGAIN; From dddb29e427703565450a2181b944acf63466325a Mon Sep 17 00:00:00 2001 From: Michael Opdenacker Date: Fri, 13 Sep 2013 05:59:42 +0200 Subject: [PATCH 127/350] net: lantiq_etop: remove deprecated IRQF_DISABLED This patch proposes to remove the IRQF_DISABLED flag from drivers/net/ethernet/lantiq_etop.c It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker Signed-off-by: David S. Miller --- drivers/net/ethernet/lantiq_etop.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/lantiq_etop.c b/drivers/net/ethernet/lantiq_etop.c index bfdb06860397..6a6c1f76d8e0 100644 --- a/drivers/net/ethernet/lantiq_etop.c +++ b/drivers/net/ethernet/lantiq_etop.c @@ -282,8 +282,7 @@ ltq_etop_hw_init(struct net_device *dev) if (IS_TX(i)) { ltq_dma_alloc_tx(&ch->dma); - request_irq(irq, ltq_etop_dma_irq, IRQF_DISABLED, - "etop_tx", priv); + request_irq(irq, ltq_etop_dma_irq, 0, "etop_tx", priv); } else if (IS_RX(i)) { ltq_dma_alloc_rx(&ch->dma); for (ch->dma.desc = 0; ch->dma.desc < LTQ_DESC_NUM; @@ -291,8 +290,7 @@ ltq_etop_hw_init(struct net_device *dev) if (ltq_etop_alloc_skb(ch)) return -ENOMEM; ch->dma.desc = 0; - request_irq(irq, ltq_etop_dma_irq, IRQF_DISABLED, - "etop_rx", priv); + request_irq(irq, ltq_etop_dma_irq, 0, "etop_rx", priv); } ch->dma.irq = irq; } From 599c2e1f22333e7e90564acb2d82e51b7477344d Mon Sep 17 00:00:00 2001 From: Michael Opdenacker Date: Fri, 13 Sep 2013 06:04:23 +0200 Subject: [PATCH 128/350] net: pxa168_eth: remove deprecated IRQF_DISABLED Signed-off-by: Michael Opdenacker Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/pxa168_eth.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/ethernet/marvell/pxa168_eth.c b/drivers/net/ethernet/marvell/pxa168_eth.c index 4ae0c7426010..fff62460185c 100644 --- a/drivers/net/ethernet/marvell/pxa168_eth.c +++ b/drivers/net/ethernet/marvell/pxa168_eth.c @@ -1123,8 +1123,7 @@ static int pxa168_eth_open(struct net_device *dev) struct pxa168_eth_private *pep = netdev_priv(dev); int err; - err = request_irq(dev->irq, pxa168_eth_int_handler, - IRQF_DISABLED, dev->name, dev); + err = request_irq(dev->irq, pxa168_eth_int_handler, 0, dev->name, dev); if (err) { dev_err(&dev->dev, "can't assign irq\n"); return -EAGAIN; From cfb9a514bc119e96c980115c055e8fd7e64a7abf Mon Sep 17 00:00:00 2001 From: Michael Opdenacker Date: Fri, 13 Sep 2013 06:10:10 +0200 Subject: [PATCH 129/350] net: ks8851-ml: remove deprecated IRQF_DISABLED This patch proposes to remove the IRQF_DISABLED flag from drivers/net/ethernet/micrel/ks8851_mll.c It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker Signed-off-by: David S. Miller --- drivers/net/ethernet/micrel/ks8851_mll.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/micrel/ks8851_mll.c b/drivers/net/ethernet/micrel/ks8851_mll.c index 0fba1532d326..075f4e21d33d 100644 --- a/drivers/net/ethernet/micrel/ks8851_mll.c +++ b/drivers/net/ethernet/micrel/ks8851_mll.c @@ -915,7 +915,7 @@ static int ks_net_open(struct net_device *netdev) struct ks_net *ks = netdev_priv(netdev); int err; -#define KS_INT_FLAGS (IRQF_DISABLED|IRQF_TRIGGER_LOW) +#define KS_INT_FLAGS IRQF_TRIGGER_LOW /* lock the card, even if we may not actually do anything * else at the moment. */ From d8865d5bb92d0d362ed6904cb248776d4da6efbb Mon Sep 17 00:00:00 2001 From: Michael Opdenacker Date: Fri, 13 Sep 2013 06:16:53 +0200 Subject: [PATCH 130/350] net: natsemi: remove deprecated IRQF_DISABLED This patch proposes to remove the IRQF_DISABLED flag from code in drivers/net/ethernet/natsemi/ It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker Signed-off-by: David S. Miller --- drivers/net/ethernet/natsemi/jazzsonic.c | 3 +-- drivers/net/ethernet/natsemi/xtsonic.c | 3 +-- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/natsemi/jazzsonic.c b/drivers/net/ethernet/natsemi/jazzsonic.c index c20766c2f65b..79257f71c5d9 100644 --- a/drivers/net/ethernet/natsemi/jazzsonic.c +++ b/drivers/net/ethernet/natsemi/jazzsonic.c @@ -83,8 +83,7 @@ static int jazzsonic_open(struct net_device* dev) { int retval; - retval = request_irq(dev->irq, sonic_interrupt, IRQF_DISABLED, - "sonic", dev); + retval = request_irq(dev->irq, sonic_interrupt, 0, "sonic", dev); if (retval) { printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, dev->irq); diff --git a/drivers/net/ethernet/natsemi/xtsonic.c b/drivers/net/ethernet/natsemi/xtsonic.c index c2e0256fe3df..4da172ac5599 100644 --- a/drivers/net/ethernet/natsemi/xtsonic.c +++ b/drivers/net/ethernet/natsemi/xtsonic.c @@ -95,8 +95,7 @@ static int xtsonic_open(struct net_device *dev) { int retval; - retval = request_irq(dev->irq, sonic_interrupt, IRQF_DISABLED, - "sonic", dev); + retval = request_irq(dev->irq, sonic_interrupt, 0, "sonic", dev); if (retval) { printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, dev->irq); From 7887427193c84eff6bb8a8776a3bf1a83b7a226c Mon Sep 17 00:00:00 2001 From: Michael Opdenacker Date: Fri, 13 Sep 2013 06:21:24 +0200 Subject: [PATCH 131/350] net: pasemi: remove deprecated IRQF_DISABLED This patch proposes to remove the IRQF_DISABLED flag from drivers/net/ethernet/pasemi/pasemi_mac.c It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker Signed-off-by: David S. Miller --- drivers/net/ethernet/pasemi/pasemi_mac.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/pasemi/pasemi_mac.c b/drivers/net/ethernet/pasemi/pasemi_mac.c index c498181a9aa8..5b65356e7568 100644 --- a/drivers/net/ethernet/pasemi/pasemi_mac.c +++ b/drivers/net/ethernet/pasemi/pasemi_mac.c @@ -1219,7 +1219,7 @@ static int pasemi_mac_open(struct net_device *dev) snprintf(mac->tx_irq_name, sizeof(mac->tx_irq_name), "%s tx", dev->name); - ret = request_irq(mac->tx->chan.irq, pasemi_mac_tx_intr, IRQF_DISABLED, + ret = request_irq(mac->tx->chan.irq, pasemi_mac_tx_intr, 0, mac->tx_irq_name, mac->tx); if (ret) { dev_err(&mac->pdev->dev, "request_irq of irq %d failed: %d\n", @@ -1230,7 +1230,7 @@ static int pasemi_mac_open(struct net_device *dev) snprintf(mac->rx_irq_name, sizeof(mac->rx_irq_name), "%s rx", dev->name); - ret = request_irq(mac->rx->chan.irq, pasemi_mac_rx_intr, IRQF_DISABLED, + ret = request_irq(mac->rx->chan.irq, pasemi_mac_rx_intr, 0, mac->rx_irq_name, mac->rx); if (ret) { dev_err(&mac->pdev->dev, "request_irq of irq %d failed: %d\n", From cf68ca1e4f6f4404d772d5f1c090e017db709356 Mon Sep 17 00:00:00 2001 From: Michael Opdenacker Date: Fri, 13 Sep 2013 06:27:47 +0200 Subject: [PATCH 132/350] net: smsc: remove deprecated IRQF_DISABLED This patch proposes to remove the IRQF_DISABLED flag from code in drivers/net/ethernet/smsc/ It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker Signed-off-by: David S. Miller --- drivers/net/ethernet/smsc/smc91x.h | 2 +- drivers/net/ethernet/smsc/smsc9420.c | 3 +-- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/smsc/smc91x.h b/drivers/net/ethernet/smsc/smc91x.h index 370e13dde115..5730fe2445a6 100644 --- a/drivers/net/ethernet/smsc/smc91x.h +++ b/drivers/net/ethernet/smsc/smc91x.h @@ -271,7 +271,7 @@ static inline void mcf_outsw(void *a, unsigned char *p, int l) #define SMC_insw(a, r, p, l) mcf_insw(a + r, p, l) #define SMC_outsw(a, r, p, l) mcf_outsw(a + r, p, l) -#define SMC_IRQ_FLAGS (IRQF_DISABLED) +#define SMC_IRQ_FLAGS 0 #else diff --git a/drivers/net/ethernet/smsc/smsc9420.c b/drivers/net/ethernet/smsc/smsc9420.c index ffa5c4ad1210..5f9e79f7f2df 100644 --- a/drivers/net/ethernet/smsc/smsc9420.c +++ b/drivers/net/ethernet/smsc/smsc9420.c @@ -1356,8 +1356,7 @@ static int smsc9420_open(struct net_device *dev) smsc9420_reg_write(pd, INT_STAT, 0xFFFFFFFF); smsc9420_pci_flush_write(pd); - result = request_irq(irq, smsc9420_isr, IRQF_SHARED | IRQF_DISABLED, - DRV_NAME, pd); + result = request_irq(irq, smsc9420_isr, IRQF_SHARED, DRV_NAME, pd); if (result) { smsc_warn(IFUP, "Unable to use IRQ = %d", irq); result = -ENODEV; From 3274f687520fd472b80ac386aa0aa24c657ae330 Mon Sep 17 00:00:00 2001 From: Michael Opdenacker Date: Fri, 13 Sep 2013 06:33:18 +0200 Subject: [PATCH 133/350] net: ps3_gelic: remove deprecated IRQF_DISABLED This patch proposes to remove the IRQF_DISABLED flag from drivers/net/ethernet/toshiba/ps3_gelic_net.c It's a NOOP since 2.6.35 and I will remove it one day ;) Signed-off-by: Michael Opdenacker Signed-off-by: David S. Miller --- drivers/net/ethernet/toshiba/ps3_gelic_net.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/toshiba/ps3_gelic_net.c b/drivers/net/ethernet/toshiba/ps3_gelic_net.c index 9c805e0c0cae..f7f2ef49c0c1 100644 --- a/drivers/net/ethernet/toshiba/ps3_gelic_net.c +++ b/drivers/net/ethernet/toshiba/ps3_gelic_net.c @@ -1726,7 +1726,7 @@ static int ps3_gelic_driver_probe(struct ps3_system_bus_device *dev) goto fail_alloc_irq; } result = request_irq(card->irq, gelic_card_interrupt, - IRQF_DISABLED, netdev->name, card); + 0, netdev->name, card); if (result) { dev_info(ctodev(card), "%s:request_irq failed (%d)\n", From 1fb1754a8c70d69ab480763c423e0a74369c4a67 Mon Sep 17 00:00:00 2001 From: Hong Zhiguo Date: Sat, 14 Sep 2013 22:42:27 +0800 Subject: [PATCH 134/350] bridge: use br_port_get_rtnl within rtnl lock current br_port_get_rcu is problematic in bridging path (NULL deref). Change these calls in netlink path first. Signed-off-by: Hong Zhiguo Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- net/bridge/br_netlink.c | 4 ++-- net/bridge/br_private.h | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c index b9259efa636e..e74ddc1c29a8 100644 --- a/net/bridge/br_netlink.c +++ b/net/bridge/br_netlink.c @@ -207,7 +207,7 @@ int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, u32 filter_mask) { int err = 0; - struct net_bridge_port *port = br_port_get_rcu(dev); + struct net_bridge_port *port = br_port_get_rtnl(dev); /* not a bridge port and */ if (!port && !(filter_mask & RTEXT_FILTER_BRVLAN)) @@ -451,7 +451,7 @@ static size_t br_get_link_af_size(const struct net_device *dev) struct net_port_vlans *pv; if (br_port_exists(dev)) - pv = nbp_get_vlan_info(br_port_get_rcu(dev)); + pv = nbp_get_vlan_info(br_port_get_rtnl(dev)); else if (dev->priv_flags & IFF_EBRIDGE) pv = br_get_vlan_info((struct net_bridge *)netdev_priv(dev)); else diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index cda83158a21c..dd583177cba4 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -208,7 +208,7 @@ static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *d return br_port_exists(dev) ? port : NULL; } -static inline struct net_bridge_port *br_port_get_rtnl(struct net_device *dev) +static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) { return br_port_exists(dev) ? rtnl_dereference(dev->rx_handler_data) : NULL; From 716ec052d2280d511e10e90ad54a86f5b5d4dcc2 Mon Sep 17 00:00:00 2001 From: Hong Zhiguo Date: Sat, 14 Sep 2013 22:42:28 +0800 Subject: [PATCH 135/350] bridge: fix NULL pointer deref of br_port_get_rcu The NULL deref happens when br_handle_frame is called between these 2 lines of del_nbp: dev->priv_flags &= ~IFF_BRIDGE_PORT; /* --> br_handle_frame is called at this time */ netdev_rx_handler_unregister(dev); In br_handle_frame the return of br_port_get_rcu(dev) is dereferenced without check but br_port_get_rcu(dev) returns NULL if: !(dev->priv_flags & IFF_BRIDGE_PORT) Eric Dumazet pointed out the testing of IFF_BRIDGE_PORT is not necessary here since we're in rcu_read_lock and we have synchronize_net() in netdev_rx_handler_unregister. So remove the testing of IFF_BRIDGE_PORT and by the previous patch, make sure br_port_get_rcu is called in bridging code. Signed-off-by: Hong Zhiguo Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- net/bridge/br_private.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index dd583177cba4..efb57d911569 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -202,10 +202,7 @@ struct net_bridge_port static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) { - struct net_bridge_port *port = - rcu_dereference_rtnl(dev->rx_handler_data); - - return br_port_exists(dev) ? port : NULL; + return rcu_dereference(dev->rx_handler_data); } static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) From 5c44bbdab5fd7831859cf0d38626317ffcf39558 Mon Sep 17 00:00:00 2001 From: Manish Chopra Date: Fri, 13 Sep 2013 06:13:47 -0400 Subject: [PATCH 136/350] qlcnic: Fix VF reset recovery o At the time of firmware hang "adapter->need_fw_reset" variable gets set but after re-initialization of firmware OR at the time of VF re-initialization that variable was not getting cleared which was leading to failure in VF reset recovery.Fix it by clearing this variable before re-initializing VF Signed-off-by: Manish Chopra Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c index 652cc13c5023..392b9bd12b4f 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c @@ -1561,6 +1561,7 @@ static int qlcnic_sriov_vf_reinit_driver(struct qlcnic_adapter *adapter) { int err; + adapter->need_fw_reset = 0; qlcnic_83xx_reinit_mbx_work(adapter->ahw->mailbox); qlcnic_83xx_enable_mbx_interrupt(adapter); From 35e4237973665c8a1ad4e3f7a7cb87573deaa24a Mon Sep 17 00:00:00 2001 From: Joseph Gasparakis Date: Fri, 13 Sep 2013 07:34:13 -0700 Subject: [PATCH 137/350] vxlan: Fix sparse warnings This patch fixes sparse warnings when incorrectly handling the port number and using int instead of unsigned int iterating through &vn->sock_list[]. Keeping the port as __be16 also makes things clearer wrt endianess. Also, it was pointed out that vxlan_get_rx_port() had unnecessary checks which got removed. Signed-off-by: Joseph Gasparakis Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/vxlan.c | 18 ++++++++---------- include/linux/netdevice.h | 8 ++++---- 2 files changed, 12 insertions(+), 14 deletions(-) diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index bf64b4191dcc..2400b1beddd5 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -564,7 +564,7 @@ static void vxlan_notify_add_rx_port(struct sock *sk) struct net_device *dev; struct net *net = sock_net(sk); sa_family_t sa_family = sk->sk_family; - u16 port = htons(inet_sk(sk)->inet_sport); + __be16 port = inet_sk(sk)->inet_sport; rcu_read_lock(); for_each_netdev_rcu(net, dev) { @@ -581,7 +581,7 @@ static void vxlan_notify_del_rx_port(struct sock *sk) struct net_device *dev; struct net *net = sock_net(sk); sa_family_t sa_family = sk->sk_family; - u16 port = htons(inet_sk(sk)->inet_sport); + __be16 port = inet_sk(sk)->inet_sport; rcu_read_lock(); for_each_netdev_rcu(net, dev) { @@ -2021,7 +2021,8 @@ static struct device_type vxlan_type = { }; /* Calls the ndo_add_vxlan_port of the caller in order to - * supply the listening VXLAN udp ports. + * supply the listening VXLAN udp ports. Callers are expected + * to implement the ndo_add_vxlan_port. */ void vxlan_get_rx_port(struct net_device *dev) { @@ -2029,16 +2030,13 @@ void vxlan_get_rx_port(struct net_device *dev) struct net *net = dev_net(dev); struct vxlan_net *vn = net_generic(net, vxlan_net_id); sa_family_t sa_family; - u16 port; - int i; - - if (!dev || !dev->netdev_ops || !dev->netdev_ops->ndo_add_vxlan_port) - return; + __be16 port; + unsigned int i; spin_lock(&vn->sock_lock); for (i = 0; i < PORT_HASH_SIZE; ++i) { - hlist_for_each_entry_rcu(vs, vs_head(net, i), hlist) { - port = htons(inet_sk(vs->sock->sk)->inet_sport); + hlist_for_each_entry_rcu(vs, &vn->sock_list[i], hlist) { + port = inet_sk(vs->sock->sk)->inet_sport; sa_family = vs->sock->sk->sk_family; dev->netdev_ops->ndo_add_vxlan_port(dev, sa_family, port); diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 041b42a305f6..3de49aca4519 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -950,14 +950,14 @@ struct netdev_phys_port_id { * multiple net devices on single physical port. * * void (*ndo_add_vxlan_port)(struct net_device *dev, - * sa_family_t sa_family, __u16 port); + * sa_family_t sa_family, __be16 port); * Called by vxlan to notiy a driver about the UDP port and socket * address family that vxlan is listnening to. It is called only when * a new port starts listening. The operation is protected by the * vxlan_net->sock_lock. * * void (*ndo_del_vxlan_port)(struct net_device *dev, - * sa_family_t sa_family, __u16 port); + * sa_family_t sa_family, __be16 port); * Called by vxlan to notify the driver about a UDP port and socket * address family that vxlan is not listening to anymore. The operation * is protected by the vxlan_net->sock_lock. @@ -1093,10 +1093,10 @@ struct net_device_ops { struct netdev_phys_port_id *ppid); void (*ndo_add_vxlan_port)(struct net_device *dev, sa_family_t sa_family, - __u16 port); + __be16 port); void (*ndo_del_vxlan_port)(struct net_device *dev, sa_family_t sa_family, - __u16 port); + __be16 port); }; /* From d2bb3905ab9bafebd0872ceef9466c32849429d7 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Fri, 13 Sep 2013 18:00:58 +0300 Subject: [PATCH 138/350] atm: nicstar: fix regression made by previous patch The commit 8390f814 "atm: nicstar: re-use native mac_pton() helper" did a usefull thing. However, mac_pton() returns 1 in the case of the successfully parsed input. This patch fixes a typo. Signed-off-by: Andy Shevchenko Signed-off-by: David S. Miller --- drivers/atm/nicstar.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/atm/nicstar.c b/drivers/atm/nicstar.c index 409502a78e7e..5aca5f4c5458 100644 --- a/drivers/atm/nicstar.c +++ b/drivers/atm/nicstar.c @@ -778,7 +778,7 @@ static int ns_init_card(int i, struct pci_dev *pcidev) return error; } - if (mac[i] == NULL || mac_pton(mac[i], card->atmdev->esi)) { + if (mac[i] == NULL || !mac_pton(mac[i], card->atmdev->esi)) { nicstar_read_eprom(card->membase, NICSTAR_EPROM_MAC_ADDR_OFFSET, card->atmdev->esi, 6); if (memcmp(card->atmdev->esi, "\x00\x00\x00\x00\x00\x00", 6) == From 7eacd03810960823393521063734fc8188446bca Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Fri, 13 Sep 2013 11:05:33 -0400 Subject: [PATCH 139/350] bonding: Make alb learning packet interval configurable running bonding in ALB mode requires that learning packets be sent periodically, so that the switch knows where to send responding traffic. However, depending on switch configuration, there may not be any need to send traffic at the default rate of 3 packets per second, which represents little more than wasted data. Allow the ALB learning packet interval to be made configurable via sysfs Signed-off-by: Neil Horman Acked-by: Acked-by: Veaceslav Falico CC: Jay Vosburgh CC: Andy Gospodarek CC: "David S. Miller" Signed-off-by: Andy Gospodarek Signed-off-by: David S. Miller --- Documentation/networking/bonding.txt | 6 +++++ drivers/net/bonding/bond_alb.c | 2 +- drivers/net/bonding/bond_alb.h | 9 ++++--- drivers/net/bonding/bond_main.c | 1 + drivers/net/bonding/bond_sysfs.c | 39 ++++++++++++++++++++++++++++ drivers/net/bonding/bonding.h | 1 + 6 files changed, 53 insertions(+), 5 deletions(-) diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt index 87bbcfee2e06..9b28e714831a 100644 --- a/Documentation/networking/bonding.txt +++ b/Documentation/networking/bonding.txt @@ -1362,6 +1362,12 @@ To add ARP targets: To remove an ARP target: # echo -192.168.0.100 > /sys/class/net/bond0/bonding/arp_ip_target +To configure the interval between learning packet transmits: +# echo 12 > /sys/class/net/bond0/bonding/lp_interval + NOTE: the lp_inteval is the number of seconds between instances where +the bonding driver sends learning packets to each slaves peer switch. The +default interval is 1 second. + Example Configuration --------------------- We begin with the same example that is shown in section 3.3, diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c index 91f179d5135c..f428ef574372 100644 --- a/drivers/net/bonding/bond_alb.c +++ b/drivers/net/bonding/bond_alb.c @@ -1472,7 +1472,7 @@ void bond_alb_monitor(struct work_struct *work) bond_info->lp_counter++; /* send learning packets */ - if (bond_info->lp_counter >= BOND_ALB_LP_TICKS) { + if (bond_info->lp_counter >= BOND_ALB_LP_TICKS(bond)) { /* change of curr_active_slave involves swapping of mac addresses. * in order to avoid this swapping from happening while * sending the learning packets, the curr_slave_lock must be held for diff --git a/drivers/net/bonding/bond_alb.h b/drivers/net/bonding/bond_alb.h index 28d8e4c7dc06..c5eff5dafdfe 100644 --- a/drivers/net/bonding/bond_alb.h +++ b/drivers/net/bonding/bond_alb.h @@ -36,14 +36,15 @@ struct slave; * Used for division - never set * to zero !!! */ -#define BOND_ALB_LP_INTERVAL 1 /* In seconds, periodic send of - * learning packets to the switch - */ +#define BOND_ALB_DEFAULT_LP_INTERVAL 1 +#define BOND_ALB_LP_INTERVAL(bond) (bond->params.lp_interval) /* In seconds, periodic send of + * learning packets to the switch + */ #define BOND_TLB_REBALANCE_TICKS (BOND_TLB_REBALANCE_INTERVAL \ * ALB_TIMER_TICKS_PER_SEC) -#define BOND_ALB_LP_TICKS (BOND_ALB_LP_INTERVAL \ +#define BOND_ALB_LP_TICKS(bond) (BOND_ALB_LP_INTERVAL(bond) \ * ALB_TIMER_TICKS_PER_SEC) #define TLB_HASH_TABLE_SIZE 256 /* The size of the clients hash table. diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 72df399c4ab3..55bbb8b8200c 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -4416,6 +4416,7 @@ static int bond_check_params(struct bond_params *params) params->all_slaves_active = all_slaves_active; params->resend_igmp = resend_igmp; params->min_links = min_links; + params->lp_interval = BOND_ALB_DEFAULT_LP_INTERVAL; if (primary) { strncpy(params->primary, primary, IFNAMSIZ); diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index eeab40b01b7a..c29b836749b6 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -1699,6 +1699,44 @@ out: static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, bonding_show_resend_igmp, bonding_store_resend_igmp); + +static ssize_t bonding_show_lp_interval(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + return sprintf(buf, "%d\n", bond->params.lp_interval); +} + +static ssize_t bonding_store_lp_interval(struct device *d, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct bonding *bond = to_bond(d); + int new_value, ret = count; + + if (sscanf(buf, "%d", &new_value) != 1) { + pr_err("%s: no lp interval value specified.\n", + bond->dev->name); + ret = -EINVAL; + goto out; + } + + if (new_value <= 0) { + pr_err ("%s: lp_interval must be between 1 and %d\n", + bond->dev->name, INT_MAX); + ret = -EINVAL; + goto out; + } + + bond->params.lp_interval = new_value; +out: + return ret; +} + +static DEVICE_ATTR(lp_interval, S_IRUGO | S_IWUSR, + bonding_show_lp_interval, bonding_store_lp_interval); + static struct attribute *per_bond_attrs[] = { &dev_attr_slaves.attr, &dev_attr_mode.attr, @@ -1729,6 +1767,7 @@ static struct attribute *per_bond_attrs[] = { &dev_attr_all_slaves_active.attr, &dev_attr_resend_igmp.attr, &dev_attr_min_links.attr, + &dev_attr_lp_interval.attr, NULL, }; diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h index 7ad8bd5cc947..03cf3fd14490 100644 --- a/drivers/net/bonding/bonding.h +++ b/drivers/net/bonding/bonding.h @@ -176,6 +176,7 @@ struct bond_params { int tx_queues; int all_slaves_active; int resend_igmp; + int lp_interval; }; struct bond_parm_tbl { From d6d6d1bc44362112e10a48d434e5b3c716152003 Mon Sep 17 00:00:00 2001 From: Antonio Alecrim Jr Date: Sat, 14 Sep 2013 14:20:40 -0300 Subject: [PATCH 140/350] isdn: hfcpci_softirq: get func return to suppress compiler warning Signed-off-by: Antonio Alecrim Jr Signed-off-by: David S. Miller --- drivers/isdn/hardware/mISDN/hfcpci.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/isdn/hardware/mISDN/hfcpci.c b/drivers/isdn/hardware/mISDN/hfcpci.c index 7f910c76ca0a..3c92780bda09 100644 --- a/drivers/isdn/hardware/mISDN/hfcpci.c +++ b/drivers/isdn/hardware/mISDN/hfcpci.c @@ -2295,8 +2295,8 @@ _hfcpci_softirq(struct device *dev, void *arg) static void hfcpci_softirq(void *arg) { - (void) driver_for_each_device(&hfc_driver.driver, NULL, arg, - _hfcpci_softirq); + WARN_ON_ONCE(driver_for_each_device(&hfc_driver.driver, NULL, arg, + _hfcpci_softirq) != 0); /* if next event would be in the past ... */ if ((s32)(hfc_jiffies + tics - jiffies) <= 0) From 73a695f8572e4c46a2aecdbb63f26f36a43e6873 Mon Sep 17 00:00:00 2001 From: Wei Yang Date: Sun, 15 Sep 2013 21:53:00 +0800 Subject: [PATCH 141/350] cxgb4: remove workqueue when driver registration fails When driver registration fails, we need to clean up the resources allocated before. cxgb4 missed to destroy the workqueue allocated at the very beginning. This patch destroies the workqueue when registration fails. Signed-off-by: Wei Yang Signed-off-by: David S. Miller --- drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c index 0d0665ca6f19..c73cabdbd4c0 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -6149,8 +6149,10 @@ static int __init cxgb4_init_module(void) pr_warn("could not create debugfs entry, continuing\n"); ret = pci_register_driver(&cxgb4_driver); - if (ret < 0) + if (ret < 0) { debugfs_remove(cxgb4_debugfs_root); + destroy_workqueue(workq); + } register_inet6addr_notifier(&cxgb4_inet6addr_notifier); From 13b62e46d5407c7d619aea1dc9c3e0991b631b57 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Mon, 16 Sep 2013 11:30:36 +0300 Subject: [PATCH 142/350] sched: Fix comment for sched_info_depart sched_info_depart seems to be only called from sched_info_switch(), so only on involuntary task switch. Fix the comment to match. Signed-off-by: Michael S. Tsirkin Cc: Peter Zijlstra Cc: Frederic Weisbecker Cc: KOSAKI Motohiro Link: http://lkml.kernel.org/r/20130916083036.GA1113@redhat.com Signed-off-by: Ingo Molnar --- kernel/sched/stats.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/kernel/sched/stats.h b/kernel/sched/stats.h index 5aef494fc8b4..c7edee71bce8 100644 --- a/kernel/sched/stats.h +++ b/kernel/sched/stats.h @@ -104,8 +104,9 @@ static inline void sched_info_queued(struct task_struct *t) } /* - * Called when a process ceases being the active-running process, either - * voluntarily or involuntarily. Now we can calculate how long we ran. + * Called when a process ceases being the active-running process involuntarily + * due, typically, to expiring its time slice (this may also be called when + * switching to the idle task). Now we can calculate how long we ran. * Also, if the process is still in the TASK_RUNNING state, call * sched_info_queued() to mark that it has now again started waiting on * the runqueue. From 7e60353a1f5335ecd63b1c54897c2aa75874aaee Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Sat, 14 Sep 2013 14:09:48 -0400 Subject: [PATCH 143/350] drm/msm: drop unnecessary set_need_resched() This was inherited from i915/udl, and not actually needed. Signed-off-by: Rob Clark --- drivers/gpu/drm/msm/msm_gem.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index 583286f39299..29eacfa29cfb 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -159,7 +159,6 @@ out_unlock: out: switch (ret) { case -EAGAIN: - set_need_resched(); case 0: case -ERESTARTSYS: case -EINTR: From 09bd14b2cc9ec2e7261019566fac0afd4cf21d51 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Thu, 5 Sep 2013 16:25:32 +0530 Subject: [PATCH 144/350] drm/exynos: Remove redundant OF dependency Now that DRM_EXYNOS depends on OF, we do not need individual drivers to depend on it. Signed-off-by: Sachin Kamat Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig index 4752f223e5b2..45b6ef595965 100644 --- a/drivers/gpu/drm/exynos/Kconfig +++ b/drivers/gpu/drm/exynos/Kconfig @@ -56,7 +56,7 @@ config DRM_EXYNOS_IPP config DRM_EXYNOS_FIMC bool "Exynos DRM FIMC" - depends on DRM_EXYNOS_IPP && MFD_SYSCON && OF + depends on DRM_EXYNOS_IPP && MFD_SYSCON help Choose this option if you want to use Exynos FIMC for DRM. From 19e307bc894edd8174ea83ee0ef102291a8bbc8d Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Thu, 5 Sep 2013 17:01:35 +0530 Subject: [PATCH 145/350] drm/exynos: Fix address space warning in exynos_drm_buf.c Fixes the following warning: drivers/gpu/drm/exynos/exynos_drm_buf.c:66:29: warning: incorrect type in assignment (different address spaces) drivers/gpu/drm/exynos/exynos_drm_buf.c:66:29: expected void [noderef] *kvaddr drivers/gpu/drm/exynos/exynos_drm_buf.c:66:29: got void * Signed-off-by: Sachin Kamat Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_buf.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_buf.c b/drivers/gpu/drm/exynos/exynos_drm_buf.c index 3445a0f3a6b2..d20a7afab571 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_buf.c +++ b/drivers/gpu/drm/exynos/exynos_drm_buf.c @@ -63,7 +63,8 @@ static int lowlevel_buffer_allocate(struct drm_device *dev, return -ENOMEM; } - buf->kvaddr = dma_alloc_attrs(dev->dev, buf->size, + buf->kvaddr = (void __iomem *)dma_alloc_attrs(dev->dev, + buf->size, &buf->dma_addr, GFP_KERNEL, &buf->dma_attrs); if (!buf->kvaddr) { From fafb38374bfaa92bc943fba4edf73849be2968a8 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Thu, 5 Sep 2013 17:01:36 +0530 Subject: [PATCH 146/350] drm/exynos: Fix address space warnings in exynos_drm_fbdev.c Silences the following warnings: drivers/gpu/drm/exynos/exynos_drm_fbdev.c:102:40: warning: incorrect type in assignment (different address spaces) drivers/gpu/drm/exynos/exynos_drm_fbdev.c:102:40: expected void [noderef] *kvaddr drivers/gpu/drm/exynos/exynos_drm_fbdev.c:102:40: got void * drivers/gpu/drm/exynos/exynos_drm_fbdev.c:107:48: warning: incorrect type in assignment (different address spaces) drivers/gpu/drm/exynos/exynos_drm_fbdev.c:107:48: expected void [noderef] *kvaddr drivers/gpu/drm/exynos/exynos_drm_fbdev.c:107:48: got void * Signed-off-by: Sachin Kamat Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c index 78e868bcf1ec..e7c2f2d07f19 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c @@ -99,12 +99,13 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper, if (is_drm_iommu_supported(dev)) { unsigned int nr_pages = buffer->size >> PAGE_SHIFT; - buffer->kvaddr = vmap(buffer->pages, nr_pages, VM_MAP, + buffer->kvaddr = (void __iomem *) vmap(buffer->pages, + nr_pages, VM_MAP, pgprot_writecombine(PAGE_KERNEL)); } else { phys_addr_t dma_addr = buffer->dma_addr; if (dma_addr) - buffer->kvaddr = phys_to_virt(dma_addr); + buffer->kvaddr = (void __iomem *)phys_to_virt(dma_addr); else buffer->kvaddr = (void __iomem *)NULL; } From 662bb6992a505ad41db3c8b52b1e70934507c2e2 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Wed, 11 Sep 2013 06:56:35 +0800 Subject: [PATCH 147/350] drm/exynos: fix return value check in lowlevel_buffer_allocate() In case of error, the function drm_prime_pages_to_sg() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Signed-off-by: Wei Yongjun Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_buf.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_buf.c b/drivers/gpu/drm/exynos/exynos_drm_buf.c index d20a7afab571..9c8088462c26 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_buf.c +++ b/drivers/gpu/drm/exynos/exynos_drm_buf.c @@ -91,9 +91,9 @@ static int lowlevel_buffer_allocate(struct drm_device *dev, } buf->sgt = drm_prime_pages_to_sg(buf->pages, nr_pages); - if (!buf->sgt) { + if (IS_ERR(buf->sgt)) { DRM_ERROR("failed to get sg table.\n"); - ret = -ENOMEM; + ret = PTR_ERR(buf->sgt); goto err_free_attrs; } From 7de8fe2fa8f94985a83120f04d41a93425ea66ba Mon Sep 17 00:00:00 2001 From: Aruna Balakrishnaiah Date: Wed, 11 Sep 2013 10:57:41 -0700 Subject: [PATCH 148/350] pstore: Adjust buffer size for compression for smaller registered buffers When backends (ex: efivars) have smaller registered buffers, the big_oops_buf is too big for them as number of repeated occurences in the text captured will be less. What happens is that pstore takes too big a bite from the dmesg log and then finds it cannot compress it enough to meet the backend block size. Patch takes care of adjusting the buffer size based on the registered buffer size. cmpr values have been arrived after doing experiments with plain text for buffers of size 1k - 4k (Smaller the buffer size repeated occurence will be less) and with sample crash log for buffers ranging from 4k - 10k. Reported-by: Seiji Aguchi Tested-by: Seiji Aguchi Signed-off-by: Aruna Balakrishnaiah Signed-off-by: Tony Luck --- fs/pstore/platform.c | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c index 4ffb7ab5e397..57b4219398cd 100644 --- a/fs/pstore/platform.c +++ b/fs/pstore/platform.c @@ -195,8 +195,29 @@ error: static void allocate_buf_for_compression(void) { size_t size; + size_t cmpr; - big_oops_buf_sz = (psinfo->bufsize * 100) / 45; + switch (psinfo->bufsize) { + /* buffer range for efivars */ + case 1000 ... 2000: + cmpr = 56; + break; + case 2001 ... 3000: + cmpr = 54; + break; + case 3001 ... 3999: + cmpr = 52; + break; + /* buffer range for nvram, erst */ + case 4000 ... 10000: + cmpr = 45; + break; + default: + cmpr = 60; + break; + } + + big_oops_buf_sz = (psinfo->bufsize * 100) / cmpr; big_oops_buf = kmalloc(big_oops_buf_sz, GFP_KERNEL); if (big_oops_buf) { size = max(zlib_deflate_workspacesize(WINDOW_BITS, MEM_LEVEL), From b61edf8e7cf9d8d450b65588b2ff40dfb8c2fd9b Mon Sep 17 00:00:00 2001 From: Aruna Balakrishnaiah Date: Wed, 11 Sep 2013 10:58:03 -0700 Subject: [PATCH 149/350] pstore: Use zlib_inflateInit2 instead of zlib_inflateInit Since zlib_deflateInit2() is used for specifying window bit during compression, zlib_inflateInit2() is appropriate for decompression. Reported-by: Seiji Aguchi Tested-by: Seiji Aguchi Signed-off-by: Aruna Balakrishnaiah Signed-off-by: Tony Luck --- fs/pstore/platform.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c index 57b4219398cd..c853e05cd7f6 100644 --- a/fs/pstore/platform.c +++ b/fs/pstore/platform.c @@ -168,7 +168,7 @@ static int pstore_decompress(void *in, void *out, size_t inlen, size_t outlen) int err, ret; ret = -EIO; - err = zlib_inflateInit(&stream); + err = zlib_inflateInit2(&stream, WINDOW_BITS); if (err != Z_OK) goto error; From 802e4c6f5887205eda110c6bfb90c9bfa93dc8a7 Mon Sep 17 00:00:00 2001 From: Aruna Balakrishnaiah Date: Wed, 11 Sep 2013 10:58:23 -0700 Subject: [PATCH 150/350] pstore: Remove the messages related to compression failure Remove the messages indicating compression failure as it will add to the space during panic path. Reported-by: Seiji Aguchi Tested-by: Seiji Aguchi Signed-off-by: Aruna Balakrishnaiah Signed-off-by: Tony Luck --- fs/pstore/platform.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c index c853e05cd7f6..b8e93a40a5d3 100644 --- a/fs/pstore/platform.c +++ b/fs/pstore/platform.c @@ -316,10 +316,6 @@ static void pstore_dump(struct kmsg_dumper *dumper, compressed = true; total_len = zipped_len; } else { - pr_err("pstore: compression failed for Part %d" - " returned %d\n", part, zipped_len); - pr_err("pstore: Capture uncompressed" - " oops/panic report of Part %d\n", part); compressed = false; total_len = copy_kmsg_to_buffer(hsize, len); } From 55524c219aa803887d1c247853842a9566598cba Mon Sep 17 00:00:00 2001 From: Jozsef Kadlecsik Date: Mon, 16 Sep 2013 20:00:08 +0200 Subject: [PATCH 151/350] netfilter: ipset: Skip really non-first fragments for IPv6 when getting port/protocol Signed-off-by: Jozsef Kadlecsik --- net/netfilter/ipset/ip_set_getport.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/netfilter/ipset/ip_set_getport.c b/net/netfilter/ipset/ip_set_getport.c index 6fdf88ae2353..dac156f819ac 100644 --- a/net/netfilter/ipset/ip_set_getport.c +++ b/net/netfilter/ipset/ip_set_getport.c @@ -116,12 +116,12 @@ ip_set_get_ip6_port(const struct sk_buff *skb, bool src, { int protoff; u8 nexthdr; - __be16 frag_off; + __be16 frag_off = 0; nexthdr = ipv6_hdr(skb)->nexthdr; protoff = ipv6_skip_exthdr(skb, sizeof(struct ipv6hdr), &nexthdr, &frag_off); - if (protoff < 0) + if (protoff < 0 || (frag_off & htons(~0x7)) != 0) return false; return get_port(skb, nexthdr, protoff, src, port, proto); From 0f1799ba1a5db4c48b72ac2da2dc70d8c190a73d Mon Sep 17 00:00:00 2001 From: Jozsef Kadlecsik Date: Mon, 16 Sep 2013 20:04:53 +0200 Subject: [PATCH 152/350] netfilter: ipset: Consistent userspace testing with nomatch flag The "nomatch" commandline flag should invert the matching at testing, similarly to the --return-nomatch flag of the "set" match of iptables. Until now it worked with the elements with "nomatch" flag only. From now on it works with elements without the flag too, i.e: # ipset n test hash:net # ipset a test 10.0.0.0/24 nomatch # ipset t test 10.0.0.1 10.0.0.1 is NOT in set test. # ipset t test 10.0.0.1 nomatch 10.0.0.1 is in set test. # ipset a test 192.168.0.0/24 # ipset t test 192.168.0.1 192.168.0.1 is in set test. # ipset t test 192.168.0.1 nomatch 192.168.0.1 is NOT in set test. Before the patch the results were ... # ipset t test 192.168.0.1 192.168.0.1 is in set test. # ipset t test 192.168.0.1 nomatch 192.168.0.1 is in set test. Signed-off-by: Jozsef Kadlecsik --- include/linux/netfilter/ipset/ip_set.h | 6 ++++-- net/netfilter/ipset/ip_set_core.c | 3 +-- net/netfilter/ipset/ip_set_hash_ipportnet.c | 4 ++-- net/netfilter/ipset/ip_set_hash_net.c | 4 ++-- net/netfilter/ipset/ip_set_hash_netiface.c | 4 ++-- net/netfilter/ipset/ip_set_hash_netport.c | 4 ++-- 6 files changed, 13 insertions(+), 12 deletions(-) diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h index d80e2753847c..9ac9fbde7b61 100644 --- a/include/linux/netfilter/ipset/ip_set.h +++ b/include/linux/netfilter/ipset/ip_set.h @@ -296,10 +296,12 @@ ip_set_eexist(int ret, u32 flags) /* Match elements marked with nomatch */ static inline bool -ip_set_enomatch(int ret, u32 flags, enum ipset_adt adt) +ip_set_enomatch(int ret, u32 flags, enum ipset_adt adt, struct ip_set *set) { return adt == IPSET_TEST && - ret == -ENOTEMPTY && ((flags >> 16) & IPSET_FLAG_NOMATCH); + (set->type->features & IPSET_TYPE_NOMATCH) && + ((flags >> 16) & IPSET_FLAG_NOMATCH) && + (ret > 0 || ret == -ENOTEMPTY); } /* Check the NLA_F_NET_BYTEORDER flag */ diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c index f77139007983..c8c303c3386f 100644 --- a/net/netfilter/ipset/ip_set_core.c +++ b/net/netfilter/ipset/ip_set_core.c @@ -1489,8 +1489,7 @@ ip_set_utest(struct sock *ctnl, struct sk_buff *skb, if (ret == -EAGAIN) ret = 1; - return (ret < 0 && ret != -ENOTEMPTY) ? ret : - ret > 0 ? 0 : -IPSET_ERR_EXIST; + return ret > 0 ? 0 : -IPSET_ERR_EXIST; } /* Get headed data of a set */ diff --git a/net/netfilter/ipset/ip_set_hash_ipportnet.c b/net/netfilter/ipset/ip_set_hash_ipportnet.c index c6a525373be4..f15f3e28b9c3 100644 --- a/net/netfilter/ipset/ip_set_hash_ipportnet.c +++ b/net/netfilter/ipset/ip_set_hash_ipportnet.c @@ -260,7 +260,7 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[], e.ip = htonl(ip); e.ip2 = htonl(ip2_from & ip_set_hostmask(e.cidr + 1)); ret = adtfn(set, &e, &ext, &ext, flags); - return ip_set_enomatch(ret, flags, adt) ? 1 : + return ip_set_enomatch(ret, flags, adt, set) ? -ret : ip_set_eexist(ret, flags) ? 0 : ret; } @@ -544,7 +544,7 @@ hash_ipportnet6_uadt(struct ip_set *set, struct nlattr *tb[], if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) { ret = adtfn(set, &e, &ext, &ext, flags); - return ip_set_enomatch(ret, flags, adt) ? 1 : + return ip_set_enomatch(ret, flags, adt, set) ? -ret : ip_set_eexist(ret, flags) ? 0 : ret; } diff --git a/net/netfilter/ipset/ip_set_hash_net.c b/net/netfilter/ipset/ip_set_hash_net.c index da740ceb56ae..223e9f546d0f 100644 --- a/net/netfilter/ipset/ip_set_hash_net.c +++ b/net/netfilter/ipset/ip_set_hash_net.c @@ -199,7 +199,7 @@ hash_net4_uadt(struct ip_set *set, struct nlattr *tb[], if (adt == IPSET_TEST || !tb[IPSET_ATTR_IP_TO]) { e.ip = htonl(ip & ip_set_hostmask(e.cidr)); ret = adtfn(set, &e, &ext, &ext, flags); - return ip_set_enomatch(ret, flags, adt) ? 1 : + return ip_set_enomatch(ret, flags, adt, set) ? -ret: ip_set_eexist(ret, flags) ? 0 : ret; } @@ -396,7 +396,7 @@ hash_net6_uadt(struct ip_set *set, struct nlattr *tb[], ret = adtfn(set, &e, &ext, &ext, flags); - return ip_set_enomatch(ret, flags, adt) ? 1 : + return ip_set_enomatch(ret, flags, adt, set) ? -ret : ip_set_eexist(ret, flags) ? 0 : ret; } diff --git a/net/netfilter/ipset/ip_set_hash_netiface.c b/net/netfilter/ipset/ip_set_hash_netiface.c index 84ae6f6ce624..7d798d5d5cd3 100644 --- a/net/netfilter/ipset/ip_set_hash_netiface.c +++ b/net/netfilter/ipset/ip_set_hash_netiface.c @@ -368,7 +368,7 @@ hash_netiface4_uadt(struct ip_set *set, struct nlattr *tb[], if (adt == IPSET_TEST || !tb[IPSET_ATTR_IP_TO]) { e.ip = htonl(ip & ip_set_hostmask(e.cidr)); ret = adtfn(set, &e, &ext, &ext, flags); - return ip_set_enomatch(ret, flags, adt) ? 1 : + return ip_set_enomatch(ret, flags, adt, set) ? -ret : ip_set_eexist(ret, flags) ? 0 : ret; } @@ -634,7 +634,7 @@ hash_netiface6_uadt(struct ip_set *set, struct nlattr *tb[], ret = adtfn(set, &e, &ext, &ext, flags); - return ip_set_enomatch(ret, flags, adt) ? 1 : + return ip_set_enomatch(ret, flags, adt, set) ? -ret : ip_set_eexist(ret, flags) ? 0 : ret; } diff --git a/net/netfilter/ipset/ip_set_hash_netport.c b/net/netfilter/ipset/ip_set_hash_netport.c index 9a0869853be5..09d6690bee6f 100644 --- a/net/netfilter/ipset/ip_set_hash_netport.c +++ b/net/netfilter/ipset/ip_set_hash_netport.c @@ -244,7 +244,7 @@ hash_netport4_uadt(struct ip_set *set, struct nlattr *tb[], if (adt == IPSET_TEST || !(with_ports || tb[IPSET_ATTR_IP_TO])) { e.ip = htonl(ip & ip_set_hostmask(e.cidr + 1)); ret = adtfn(set, &e, &ext, &ext, flags); - return ip_set_enomatch(ret, flags, adt) ? 1 : + return ip_set_enomatch(ret, flags, adt, set) ? -ret : ip_set_eexist(ret, flags) ? 0 : ret; } @@ -489,7 +489,7 @@ hash_netport6_uadt(struct ip_set *set, struct nlattr *tb[], if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) { ret = adtfn(set, &e, &ext, &ext, flags); - return ip_set_enomatch(ret, flags, adt) ? 1 : + return ip_set_enomatch(ret, flags, adt, set) ? -ret : ip_set_eexist(ret, flags) ? 0 : ret; } From 169faa2e19478b02027df04582ec7543dba1dd16 Mon Sep 17 00:00:00 2001 From: Jozsef Kadlecsik Date: Mon, 16 Sep 2013 20:07:35 +0200 Subject: [PATCH 153/350] netfilter: ipset: Validate the set family and not the set type family at swapping This closes netfilter bugzilla #843, reported by Quentin Armitage. Signed-off-by: Jozsef Kadlecsik --- net/netfilter/ipset/ip_set_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c index c8c303c3386f..f2e30fb31e78 100644 --- a/net/netfilter/ipset/ip_set_core.c +++ b/net/netfilter/ipset/ip_set_core.c @@ -1052,7 +1052,7 @@ ip_set_swap(struct sock *ctnl, struct sk_buff *skb, * Not an artificial restriction anymore, as we must prevent * possible loops created by swapping in setlist type of sets. */ if (!(from->type->features == to->type->features && - from->type->family == to->type->family)) + from->family == to->family)) return -IPSET_ERR_TYPE_MISMATCH; strncpy(from_name, from->name, IPSET_MAXNAMELEN); From 2cf55125c64d64cc106e204d53b107094762dfdf Mon Sep 17 00:00:00 2001 From: Oliver Smith Date: Mon, 16 Sep 2013 20:30:57 +0200 Subject: [PATCH 154/350] netfilter: ipset: Fix serious failure in CIDR tracking This fixes a serious bug affecting all hash types with a net element - specifically, if a CIDR value is deleted such that none of the same size exist any more, all larger (less-specific) values will then fail to match. Adding back any prefix with a CIDR equal to or more specific than the one deleted will fix it. Steps to reproduce: ipset -N test hash:net ipset -A test 1.1.0.0/16 ipset -A test 2.2.2.0/24 ipset -T test 1.1.1.1 #1.1.1.1 IS in set ipset -D test 2.2.2.0/24 ipset -T test 1.1.1.1 #1.1.1.1 IS NOT in set This is due to the fact that the nets counter was unconditionally decremented prior to the iteration that shifts up the entries. Now, we first check if there is a proceeding entry and if not, decrement it and return. Otherwise, we proceed to iterate and then zero the last element, which, in most cases, will already be zero. Signed-off-by: Oliver Smith Signed-off-by: Jozsef Kadlecsik --- net/netfilter/ipset/ip_set_hash_gen.h | 26 +++++++++++++++----------- 1 file changed, 15 insertions(+), 11 deletions(-) diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h index 57beb1762b2d..707bc520d629 100644 --- a/net/netfilter/ipset/ip_set_hash_gen.h +++ b/net/netfilter/ipset/ip_set_hash_gen.h @@ -325,18 +325,22 @@ mtype_add_cidr(struct htype *h, u8 cidr, u8 nets_length) static void mtype_del_cidr(struct htype *h, u8 cidr, u8 nets_length) { - u8 i, j; + u8 i, j, net_end = nets_length - 1; - for (i = 0; i < nets_length - 1 && h->nets[i].cidr != cidr; i++) - ; - h->nets[i].nets--; - - if (h->nets[i].nets != 0) - return; - - for (j = i; j < nets_length - 1 && h->nets[j].nets; j++) { - h->nets[j].cidr = h->nets[j + 1].cidr; - h->nets[j].nets = h->nets[j + 1].nets; + for (i = 0; i < nets_length; i++) { + if (h->nets[i].cidr != cidr) + continue; + if (h->nets[i].nets > 1 || i == net_end || + h->nets[i + 1].nets == 0) { + h->nets[i].nets--; + return; + } + for (j = i; j < net_end && h->nets[j].nets; j++) { + h->nets[j].cidr = h->nets[j + 1].cidr; + h->nets[j].nets = h->nets[j + 1].nets; + } + h->nets[j].nets = 0; + return; } } #endif From ad2a4bb378ff76f9ca4c61bb11b1b208f71e1861 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Mon, 16 Sep 2013 13:02:57 -0400 Subject: [PATCH 155/350] tile: double default VMALLOC space With per-cpu data as well as loaded kernel modules coming from the vmalloc arena, we get close to the line all the time and occasionally need more than we had, so just double it up by default. Signed-off-by: Chris Metcalf --- arch/tile/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig index 8a7cc663b3f8..d45a2c48f185 100644 --- a/arch/tile/Kconfig +++ b/arch/tile/Kconfig @@ -361,7 +361,7 @@ config CMDLINE_OVERRIDE config VMALLOC_RESERVE hex - default 0x1000000 + default 0x2000000 config HARDWALL bool "Hardwall support to allow access to user dynamic network" From 126eb08820a2c97c10ea58e73a544c2f075d59a7 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Mon, 16 Sep 2013 13:52:45 -0400 Subject: [PATCH 156/350] tile: improve gxio iorpc autogenerated code style Fix some whitespace style issues in some auto-generated files. Signed-off-by: Chris Metcalf --- arch/tile/gxio/iorpc_mpipe.c | 90 +++++++++++------------ arch/tile/gxio/iorpc_mpipe_info.c | 15 ++-- arch/tile/gxio/iorpc_trio.c | 28 +++---- arch/tile/gxio/iorpc_usb_host.c | 8 +- arch/tile/gxio/usb_host.c | 8 +- arch/tile/include/gxio/iorpc_mpipe.h | 52 ++++++------- arch/tile/include/gxio/iorpc_mpipe_info.h | 12 +-- arch/tile/include/gxio/iorpc_trio.h | 28 +++---- arch/tile/include/gxio/iorpc_usb_host.h | 8 +- arch/tile/include/gxio/usb_host.h | 8 +- 10 files changed, 127 insertions(+), 130 deletions(-) diff --git a/arch/tile/gxio/iorpc_mpipe.c b/arch/tile/gxio/iorpc_mpipe.c index 4f8f3d619c4a..e19325c4c431 100644 --- a/arch/tile/gxio/iorpc_mpipe.c +++ b/arch/tile/gxio/iorpc_mpipe.c @@ -21,7 +21,7 @@ struct alloc_buffer_stacks_param { unsigned int flags; }; -int gxio_mpipe_alloc_buffer_stacks(gxio_mpipe_context_t * context, +int gxio_mpipe_alloc_buffer_stacks(gxio_mpipe_context_t *context, unsigned int count, unsigned int first, unsigned int flags) { @@ -45,7 +45,7 @@ struct init_buffer_stack_aux_param { unsigned int buffer_size_enum; }; -int gxio_mpipe_init_buffer_stack_aux(gxio_mpipe_context_t * context, +int gxio_mpipe_init_buffer_stack_aux(gxio_mpipe_context_t *context, void *mem_va, size_t mem_size, unsigned int mem_flags, unsigned int stack, unsigned int buffer_size_enum) @@ -80,7 +80,7 @@ struct alloc_notif_rings_param { unsigned int flags; }; -int gxio_mpipe_alloc_notif_rings(gxio_mpipe_context_t * context, +int gxio_mpipe_alloc_notif_rings(gxio_mpipe_context_t *context, unsigned int count, unsigned int first, unsigned int flags) { @@ -102,7 +102,7 @@ struct init_notif_ring_aux_param { unsigned int ring; }; -int gxio_mpipe_init_notif_ring_aux(gxio_mpipe_context_t * context, void *mem_va, +int gxio_mpipe_init_notif_ring_aux(gxio_mpipe_context_t *context, void *mem_va, size_t mem_size, unsigned int mem_flags, unsigned int ring) { @@ -133,7 +133,7 @@ struct request_notif_ring_interrupt_param { unsigned int ring; }; -int gxio_mpipe_request_notif_ring_interrupt(gxio_mpipe_context_t * context, +int gxio_mpipe_request_notif_ring_interrupt(gxio_mpipe_context_t *context, int inter_x, int inter_y, int inter_ipi, int inter_event, unsigned int ring) @@ -158,7 +158,7 @@ struct enable_notif_ring_interrupt_param { unsigned int ring; }; -int gxio_mpipe_enable_notif_ring_interrupt(gxio_mpipe_context_t * context, +int gxio_mpipe_enable_notif_ring_interrupt(gxio_mpipe_context_t *context, unsigned int ring) { struct enable_notif_ring_interrupt_param temp; @@ -179,7 +179,7 @@ struct alloc_notif_groups_param { unsigned int flags; }; -int gxio_mpipe_alloc_notif_groups(gxio_mpipe_context_t * context, +int gxio_mpipe_alloc_notif_groups(gxio_mpipe_context_t *context, unsigned int count, unsigned int first, unsigned int flags) { @@ -201,7 +201,7 @@ struct init_notif_group_param { gxio_mpipe_notif_group_bits_t bits; }; -int gxio_mpipe_init_notif_group(gxio_mpipe_context_t * context, +int gxio_mpipe_init_notif_group(gxio_mpipe_context_t *context, unsigned int group, gxio_mpipe_notif_group_bits_t bits) { @@ -223,7 +223,7 @@ struct alloc_buckets_param { unsigned int flags; }; -int gxio_mpipe_alloc_buckets(gxio_mpipe_context_t * context, unsigned int count, +int gxio_mpipe_alloc_buckets(gxio_mpipe_context_t *context, unsigned int count, unsigned int first, unsigned int flags) { struct alloc_buckets_param temp; @@ -244,7 +244,7 @@ struct init_bucket_param { MPIPE_LBL_INIT_DAT_BSTS_TBL_t bucket_info; }; -int gxio_mpipe_init_bucket(gxio_mpipe_context_t * context, unsigned int bucket, +int gxio_mpipe_init_bucket(gxio_mpipe_context_t *context, unsigned int bucket, MPIPE_LBL_INIT_DAT_BSTS_TBL_t bucket_info) { struct init_bucket_param temp; @@ -265,7 +265,7 @@ struct alloc_edma_rings_param { unsigned int flags; }; -int gxio_mpipe_alloc_edma_rings(gxio_mpipe_context_t * context, +int gxio_mpipe_alloc_edma_rings(gxio_mpipe_context_t *context, unsigned int count, unsigned int first, unsigned int flags) { @@ -288,7 +288,7 @@ struct init_edma_ring_aux_param { unsigned int channel; }; -int gxio_mpipe_init_edma_ring_aux(gxio_mpipe_context_t * context, void *mem_va, +int gxio_mpipe_init_edma_ring_aux(gxio_mpipe_context_t *context, void *mem_va, size_t mem_size, unsigned int mem_flags, unsigned int ring, unsigned int channel) { @@ -315,7 +315,7 @@ int gxio_mpipe_init_edma_ring_aux(gxio_mpipe_context_t * context, void *mem_va, EXPORT_SYMBOL(gxio_mpipe_init_edma_ring_aux); -int gxio_mpipe_commit_rules(gxio_mpipe_context_t * context, const void *blob, +int gxio_mpipe_commit_rules(gxio_mpipe_context_t *context, const void *blob, size_t blob_size) { const void *params = blob; @@ -332,7 +332,7 @@ struct register_client_memory_param { unsigned int flags; }; -int gxio_mpipe_register_client_memory(gxio_mpipe_context_t * context, +int gxio_mpipe_register_client_memory(gxio_mpipe_context_t *context, unsigned int iotlb, HV_PTE pte, unsigned int flags) { @@ -355,7 +355,7 @@ struct link_open_aux_param { unsigned int flags; }; -int gxio_mpipe_link_open_aux(gxio_mpipe_context_t * context, +int gxio_mpipe_link_open_aux(gxio_mpipe_context_t *context, _gxio_mpipe_link_name_t name, unsigned int flags) { struct link_open_aux_param temp; @@ -374,7 +374,7 @@ struct link_close_aux_param { int mac; }; -int gxio_mpipe_link_close_aux(gxio_mpipe_context_t * context, int mac) +int gxio_mpipe_link_close_aux(gxio_mpipe_context_t *context, int mac) { struct link_close_aux_param temp; struct link_close_aux_param *params = &temp; @@ -393,7 +393,7 @@ struct link_set_attr_aux_param { int64_t val; }; -int gxio_mpipe_link_set_attr_aux(gxio_mpipe_context_t * context, int mac, +int gxio_mpipe_link_set_attr_aux(gxio_mpipe_context_t *context, int mac, uint32_t attr, int64_t val) { struct link_set_attr_aux_param temp; @@ -415,8 +415,8 @@ struct get_timestamp_aux_param { uint64_t cycles; }; -int gxio_mpipe_get_timestamp_aux(gxio_mpipe_context_t * context, uint64_t * sec, - uint64_t * nsec, uint64_t * cycles) +int gxio_mpipe_get_timestamp_aux(gxio_mpipe_context_t *context, uint64_t *sec, + uint64_t *nsec, uint64_t *cycles) { int __result; struct get_timestamp_aux_param temp; @@ -440,7 +440,7 @@ struct set_timestamp_aux_param { uint64_t cycles; }; -int gxio_mpipe_set_timestamp_aux(gxio_mpipe_context_t * context, uint64_t sec, +int gxio_mpipe_set_timestamp_aux(gxio_mpipe_context_t *context, uint64_t sec, uint64_t nsec, uint64_t cycles) { struct set_timestamp_aux_param temp; @@ -460,8 +460,7 @@ struct adjust_timestamp_aux_param { int64_t nsec; }; -int gxio_mpipe_adjust_timestamp_aux(gxio_mpipe_context_t * context, - int64_t nsec) +int gxio_mpipe_adjust_timestamp_aux(gxio_mpipe_context_t *context, int64_t nsec) { struct adjust_timestamp_aux_param temp; struct adjust_timestamp_aux_param *params = &temp; @@ -475,25 +474,6 @@ int gxio_mpipe_adjust_timestamp_aux(gxio_mpipe_context_t * context, EXPORT_SYMBOL(gxio_mpipe_adjust_timestamp_aux); -struct adjust_timestamp_freq_param { - int32_t ppb; -}; - -int gxio_mpipe_adjust_timestamp_freq(gxio_mpipe_context_t * context, - int32_t ppb) -{ - struct adjust_timestamp_freq_param temp; - struct adjust_timestamp_freq_param *params = &temp; - - params->ppb = ppb; - - return hv_dev_pwrite(context->fd, 0, (HV_VirtAddr) params, - sizeof(*params), - GXIO_MPIPE_OP_ADJUST_TIMESTAMP_FREQ); -} - -EXPORT_SYMBOL(gxio_mpipe_adjust_timestamp_freq); - struct config_edma_ring_blks_param { unsigned int ering; unsigned int max_blks; @@ -501,7 +481,7 @@ struct config_edma_ring_blks_param { unsigned int db; }; -int gxio_mpipe_config_edma_ring_blks(gxio_mpipe_context_t * context, +int gxio_mpipe_config_edma_ring_blks(gxio_mpipe_context_t *context, unsigned int ering, unsigned int max_blks, unsigned int min_snf_blks, unsigned int db) { @@ -520,11 +500,29 @@ int gxio_mpipe_config_edma_ring_blks(gxio_mpipe_context_t * context, EXPORT_SYMBOL(gxio_mpipe_config_edma_ring_blks); +struct adjust_timestamp_freq_param { + int32_t ppb; +}; + +int gxio_mpipe_adjust_timestamp_freq(gxio_mpipe_context_t *context, int32_t ppb) +{ + struct adjust_timestamp_freq_param temp; + struct adjust_timestamp_freq_param *params = &temp; + + params->ppb = ppb; + + return hv_dev_pwrite(context->fd, 0, (HV_VirtAddr) params, + sizeof(*params), + GXIO_MPIPE_OP_ADJUST_TIMESTAMP_FREQ); +} + +EXPORT_SYMBOL(gxio_mpipe_adjust_timestamp_freq); + struct arm_pollfd_param { union iorpc_pollfd pollfd; }; -int gxio_mpipe_arm_pollfd(gxio_mpipe_context_t * context, int pollfd_cookie) +int gxio_mpipe_arm_pollfd(gxio_mpipe_context_t *context, int pollfd_cookie) { struct arm_pollfd_param temp; struct arm_pollfd_param *params = &temp; @@ -541,7 +539,7 @@ struct close_pollfd_param { union iorpc_pollfd pollfd; }; -int gxio_mpipe_close_pollfd(gxio_mpipe_context_t * context, int pollfd_cookie) +int gxio_mpipe_close_pollfd(gxio_mpipe_context_t *context, int pollfd_cookie) { struct close_pollfd_param temp; struct close_pollfd_param *params = &temp; @@ -558,7 +556,7 @@ struct get_mmio_base_param { HV_PTE base; }; -int gxio_mpipe_get_mmio_base(gxio_mpipe_context_t * context, HV_PTE *base) +int gxio_mpipe_get_mmio_base(gxio_mpipe_context_t *context, HV_PTE *base) { int __result; struct get_mmio_base_param temp; @@ -579,7 +577,7 @@ struct check_mmio_offset_param { unsigned long size; }; -int gxio_mpipe_check_mmio_offset(gxio_mpipe_context_t * context, +int gxio_mpipe_check_mmio_offset(gxio_mpipe_context_t *context, unsigned long offset, unsigned long size) { struct check_mmio_offset_param temp; diff --git a/arch/tile/gxio/iorpc_mpipe_info.c b/arch/tile/gxio/iorpc_mpipe_info.c index 64883aabeb9c..77019c6e9b4a 100644 --- a/arch/tile/gxio/iorpc_mpipe_info.c +++ b/arch/tile/gxio/iorpc_mpipe_info.c @@ -15,12 +15,11 @@ /* This file is machine-generated; DO NOT EDIT! */ #include "gxio/iorpc_mpipe_info.h" - struct instance_aux_param { _gxio_mpipe_link_name_t name; }; -int gxio_mpipe_info_instance_aux(gxio_mpipe_info_context_t * context, +int gxio_mpipe_info_instance_aux(gxio_mpipe_info_context_t *context, _gxio_mpipe_link_name_t name) { struct instance_aux_param temp; @@ -39,10 +38,10 @@ struct enumerate_aux_param { _gxio_mpipe_link_mac_t mac; }; -int gxio_mpipe_info_enumerate_aux(gxio_mpipe_info_context_t * context, +int gxio_mpipe_info_enumerate_aux(gxio_mpipe_info_context_t *context, unsigned int idx, - _gxio_mpipe_link_name_t * name, - _gxio_mpipe_link_mac_t * mac) + _gxio_mpipe_link_name_t *name, + _gxio_mpipe_link_mac_t *mac) { int __result; struct enumerate_aux_param temp; @@ -50,7 +49,7 @@ int gxio_mpipe_info_enumerate_aux(gxio_mpipe_info_context_t * context, __result = hv_dev_pread(context->fd, 0, (HV_VirtAddr) params, sizeof(*params), - (((uint64_t) idx << 32) | + (((uint64_t)idx << 32) | GXIO_MPIPE_INFO_OP_ENUMERATE_AUX)); *name = params->name; *mac = params->mac; @@ -64,7 +63,7 @@ struct get_mmio_base_param { HV_PTE base; }; -int gxio_mpipe_info_get_mmio_base(gxio_mpipe_info_context_t * context, +int gxio_mpipe_info_get_mmio_base(gxio_mpipe_info_context_t *context, HV_PTE *base) { int __result; @@ -86,7 +85,7 @@ struct check_mmio_offset_param { unsigned long size; }; -int gxio_mpipe_info_check_mmio_offset(gxio_mpipe_info_context_t * context, +int gxio_mpipe_info_check_mmio_offset(gxio_mpipe_info_context_t *context, unsigned long offset, unsigned long size) { struct check_mmio_offset_param temp; diff --git a/arch/tile/gxio/iorpc_trio.c b/arch/tile/gxio/iorpc_trio.c index da6e18e049c3..1d3cedb9aeb4 100644 --- a/arch/tile/gxio/iorpc_trio.c +++ b/arch/tile/gxio/iorpc_trio.c @@ -21,7 +21,7 @@ struct alloc_asids_param { unsigned int flags; }; -int gxio_trio_alloc_asids(gxio_trio_context_t * context, unsigned int count, +int gxio_trio_alloc_asids(gxio_trio_context_t *context, unsigned int count, unsigned int first, unsigned int flags) { struct alloc_asids_param temp; @@ -44,7 +44,7 @@ struct alloc_memory_maps_param { unsigned int flags; }; -int gxio_trio_alloc_memory_maps(gxio_trio_context_t * context, +int gxio_trio_alloc_memory_maps(gxio_trio_context_t *context, unsigned int count, unsigned int first, unsigned int flags) { @@ -67,7 +67,7 @@ struct alloc_scatter_queues_param { unsigned int flags; }; -int gxio_trio_alloc_scatter_queues(gxio_trio_context_t * context, +int gxio_trio_alloc_scatter_queues(gxio_trio_context_t *context, unsigned int count, unsigned int first, unsigned int flags) { @@ -91,7 +91,7 @@ struct alloc_pio_regions_param { unsigned int flags; }; -int gxio_trio_alloc_pio_regions(gxio_trio_context_t * context, +int gxio_trio_alloc_pio_regions(gxio_trio_context_t *context, unsigned int count, unsigned int first, unsigned int flags) { @@ -115,7 +115,7 @@ struct init_pio_region_aux_param { unsigned int flags; }; -int gxio_trio_init_pio_region_aux(gxio_trio_context_t * context, +int gxio_trio_init_pio_region_aux(gxio_trio_context_t *context, unsigned int pio_region, unsigned int mac, uint32_t bus_address_hi, unsigned int flags) { @@ -145,7 +145,7 @@ struct init_memory_map_mmu_aux_param { unsigned int order_mode; }; -int gxio_trio_init_memory_map_mmu_aux(gxio_trio_context_t * context, +int gxio_trio_init_memory_map_mmu_aux(gxio_trio_context_t *context, unsigned int map, unsigned long va, uint64_t size, unsigned int asid, unsigned int mac, uint64_t bus_address, @@ -175,7 +175,7 @@ struct get_port_property_param { struct pcie_trio_ports_property trio_ports; }; -int gxio_trio_get_port_property(gxio_trio_context_t * context, +int gxio_trio_get_port_property(gxio_trio_context_t *context, struct pcie_trio_ports_property *trio_ports) { int __result; @@ -198,7 +198,7 @@ struct config_legacy_intr_param { unsigned int intx; }; -int gxio_trio_config_legacy_intr(gxio_trio_context_t * context, int inter_x, +int gxio_trio_config_legacy_intr(gxio_trio_context_t *context, int inter_x, int inter_y, int inter_ipi, int inter_event, unsigned int mac, unsigned int intx) { @@ -227,7 +227,7 @@ struct config_msi_intr_param { unsigned int asid; }; -int gxio_trio_config_msi_intr(gxio_trio_context_t * context, int inter_x, +int gxio_trio_config_msi_intr(gxio_trio_context_t *context, int inter_x, int inter_y, int inter_ipi, int inter_event, unsigned int mac, unsigned int mem_map, uint64_t mem_map_base, uint64_t mem_map_limit, @@ -259,7 +259,7 @@ struct set_mps_mrs_param { unsigned int mac; }; -int gxio_trio_set_mps_mrs(gxio_trio_context_t * context, uint16_t mps, +int gxio_trio_set_mps_mrs(gxio_trio_context_t *context, uint16_t mps, uint16_t mrs, unsigned int mac) { struct set_mps_mrs_param temp; @@ -279,7 +279,7 @@ struct force_rc_link_up_param { unsigned int mac; }; -int gxio_trio_force_rc_link_up(gxio_trio_context_t * context, unsigned int mac) +int gxio_trio_force_rc_link_up(gxio_trio_context_t *context, unsigned int mac) { struct force_rc_link_up_param temp; struct force_rc_link_up_param *params = &temp; @@ -296,7 +296,7 @@ struct force_ep_link_up_param { unsigned int mac; }; -int gxio_trio_force_ep_link_up(gxio_trio_context_t * context, unsigned int mac) +int gxio_trio_force_ep_link_up(gxio_trio_context_t *context, unsigned int mac) { struct force_ep_link_up_param temp; struct force_ep_link_up_param *params = &temp; @@ -313,7 +313,7 @@ struct get_mmio_base_param { HV_PTE base; }; -int gxio_trio_get_mmio_base(gxio_trio_context_t * context, HV_PTE *base) +int gxio_trio_get_mmio_base(gxio_trio_context_t *context, HV_PTE *base) { int __result; struct get_mmio_base_param temp; @@ -334,7 +334,7 @@ struct check_mmio_offset_param { unsigned long size; }; -int gxio_trio_check_mmio_offset(gxio_trio_context_t * context, +int gxio_trio_check_mmio_offset(gxio_trio_context_t *context, unsigned long offset, unsigned long size) { struct check_mmio_offset_param temp; diff --git a/arch/tile/gxio/iorpc_usb_host.c b/arch/tile/gxio/iorpc_usb_host.c index cf3c3cc12204..9c820073bfc0 100644 --- a/arch/tile/gxio/iorpc_usb_host.c +++ b/arch/tile/gxio/iorpc_usb_host.c @@ -19,7 +19,7 @@ struct cfg_interrupt_param { union iorpc_interrupt interrupt; }; -int gxio_usb_host_cfg_interrupt(gxio_usb_host_context_t * context, int inter_x, +int gxio_usb_host_cfg_interrupt(gxio_usb_host_context_t *context, int inter_x, int inter_y, int inter_ipi, int inter_event) { struct cfg_interrupt_param temp; @@ -41,7 +41,7 @@ struct register_client_memory_param { unsigned int flags; }; -int gxio_usb_host_register_client_memory(gxio_usb_host_context_t * context, +int gxio_usb_host_register_client_memory(gxio_usb_host_context_t *context, HV_PTE pte, unsigned int flags) { struct register_client_memory_param temp; @@ -61,7 +61,7 @@ struct get_mmio_base_param { HV_PTE base; }; -int gxio_usb_host_get_mmio_base(gxio_usb_host_context_t * context, HV_PTE *base) +int gxio_usb_host_get_mmio_base(gxio_usb_host_context_t *context, HV_PTE *base) { int __result; struct get_mmio_base_param temp; @@ -82,7 +82,7 @@ struct check_mmio_offset_param { unsigned long size; }; -int gxio_usb_host_check_mmio_offset(gxio_usb_host_context_t * context, +int gxio_usb_host_check_mmio_offset(gxio_usb_host_context_t *context, unsigned long offset, unsigned long size) { struct check_mmio_offset_param temp; diff --git a/arch/tile/gxio/usb_host.c b/arch/tile/gxio/usb_host.c index 66b002f54ecc..785afad7922e 100644 --- a/arch/tile/gxio/usb_host.c +++ b/arch/tile/gxio/usb_host.c @@ -26,7 +26,7 @@ #include #include -int gxio_usb_host_init(gxio_usb_host_context_t * context, int usb_index, +int gxio_usb_host_init(gxio_usb_host_context_t *context, int usb_index, int is_ehci) { char file[32]; @@ -63,7 +63,7 @@ int gxio_usb_host_init(gxio_usb_host_context_t * context, int usb_index, EXPORT_SYMBOL_GPL(gxio_usb_host_init); -int gxio_usb_host_destroy(gxio_usb_host_context_t * context) +int gxio_usb_host_destroy(gxio_usb_host_context_t *context) { iounmap((void __force __iomem *)(context->mmio_base)); hv_dev_close(context->fd); @@ -76,14 +76,14 @@ int gxio_usb_host_destroy(gxio_usb_host_context_t * context) EXPORT_SYMBOL_GPL(gxio_usb_host_destroy); -void *gxio_usb_host_get_reg_start(gxio_usb_host_context_t * context) +void *gxio_usb_host_get_reg_start(gxio_usb_host_context_t *context) { return context->mmio_base; } EXPORT_SYMBOL_GPL(gxio_usb_host_get_reg_start); -size_t gxio_usb_host_get_reg_len(gxio_usb_host_context_t * context) +size_t gxio_usb_host_get_reg_len(gxio_usb_host_context_t *context) { return HV_USB_HOST_MMIO_SIZE; } diff --git a/arch/tile/include/gxio/iorpc_mpipe.h b/arch/tile/include/gxio/iorpc_mpipe.h index fdd07f88cfd7..4cda03de734f 100644 --- a/arch/tile/include/gxio/iorpc_mpipe.h +++ b/arch/tile/include/gxio/iorpc_mpipe.h @@ -56,89 +56,89 @@ #define GXIO_MPIPE_OP_GET_MMIO_BASE IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x8000) #define GXIO_MPIPE_OP_CHECK_MMIO_OFFSET IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x8001) -int gxio_mpipe_alloc_buffer_stacks(gxio_mpipe_context_t * context, +int gxio_mpipe_alloc_buffer_stacks(gxio_mpipe_context_t *context, unsigned int count, unsigned int first, unsigned int flags); -int gxio_mpipe_init_buffer_stack_aux(gxio_mpipe_context_t * context, +int gxio_mpipe_init_buffer_stack_aux(gxio_mpipe_context_t *context, void *mem_va, size_t mem_size, unsigned int mem_flags, unsigned int stack, unsigned int buffer_size_enum); -int gxio_mpipe_alloc_notif_rings(gxio_mpipe_context_t * context, +int gxio_mpipe_alloc_notif_rings(gxio_mpipe_context_t *context, unsigned int count, unsigned int first, unsigned int flags); -int gxio_mpipe_init_notif_ring_aux(gxio_mpipe_context_t * context, void *mem_va, +int gxio_mpipe_init_notif_ring_aux(gxio_mpipe_context_t *context, void *mem_va, size_t mem_size, unsigned int mem_flags, unsigned int ring); -int gxio_mpipe_request_notif_ring_interrupt(gxio_mpipe_context_t * context, +int gxio_mpipe_request_notif_ring_interrupt(gxio_mpipe_context_t *context, int inter_x, int inter_y, int inter_ipi, int inter_event, unsigned int ring); -int gxio_mpipe_enable_notif_ring_interrupt(gxio_mpipe_context_t * context, +int gxio_mpipe_enable_notif_ring_interrupt(gxio_mpipe_context_t *context, unsigned int ring); -int gxio_mpipe_alloc_notif_groups(gxio_mpipe_context_t * context, +int gxio_mpipe_alloc_notif_groups(gxio_mpipe_context_t *context, unsigned int count, unsigned int first, unsigned int flags); -int gxio_mpipe_init_notif_group(gxio_mpipe_context_t * context, +int gxio_mpipe_init_notif_group(gxio_mpipe_context_t *context, unsigned int group, gxio_mpipe_notif_group_bits_t bits); -int gxio_mpipe_alloc_buckets(gxio_mpipe_context_t * context, unsigned int count, +int gxio_mpipe_alloc_buckets(gxio_mpipe_context_t *context, unsigned int count, unsigned int first, unsigned int flags); -int gxio_mpipe_init_bucket(gxio_mpipe_context_t * context, unsigned int bucket, +int gxio_mpipe_init_bucket(gxio_mpipe_context_t *context, unsigned int bucket, MPIPE_LBL_INIT_DAT_BSTS_TBL_t bucket_info); -int gxio_mpipe_alloc_edma_rings(gxio_mpipe_context_t * context, +int gxio_mpipe_alloc_edma_rings(gxio_mpipe_context_t *context, unsigned int count, unsigned int first, unsigned int flags); -int gxio_mpipe_init_edma_ring_aux(gxio_mpipe_context_t * context, void *mem_va, +int gxio_mpipe_init_edma_ring_aux(gxio_mpipe_context_t *context, void *mem_va, size_t mem_size, unsigned int mem_flags, unsigned int ring, unsigned int channel); -int gxio_mpipe_commit_rules(gxio_mpipe_context_t * context, const void *blob, +int gxio_mpipe_commit_rules(gxio_mpipe_context_t *context, const void *blob, size_t blob_size); -int gxio_mpipe_register_client_memory(gxio_mpipe_context_t * context, +int gxio_mpipe_register_client_memory(gxio_mpipe_context_t *context, unsigned int iotlb, HV_PTE pte, unsigned int flags); -int gxio_mpipe_link_open_aux(gxio_mpipe_context_t * context, +int gxio_mpipe_link_open_aux(gxio_mpipe_context_t *context, _gxio_mpipe_link_name_t name, unsigned int flags); -int gxio_mpipe_link_close_aux(gxio_mpipe_context_t * context, int mac); +int gxio_mpipe_link_close_aux(gxio_mpipe_context_t *context, int mac); -int gxio_mpipe_link_set_attr_aux(gxio_mpipe_context_t * context, int mac, +int gxio_mpipe_link_set_attr_aux(gxio_mpipe_context_t *context, int mac, uint32_t attr, int64_t val); -int gxio_mpipe_get_timestamp_aux(gxio_mpipe_context_t * context, uint64_t * sec, - uint64_t * nsec, uint64_t * cycles); +int gxio_mpipe_get_timestamp_aux(gxio_mpipe_context_t *context, uint64_t *sec, + uint64_t *nsec, uint64_t *cycles); -int gxio_mpipe_set_timestamp_aux(gxio_mpipe_context_t * context, uint64_t sec, +int gxio_mpipe_set_timestamp_aux(gxio_mpipe_context_t *context, uint64_t sec, uint64_t nsec, uint64_t cycles); -int gxio_mpipe_adjust_timestamp_aux(gxio_mpipe_context_t * context, +int gxio_mpipe_adjust_timestamp_aux(gxio_mpipe_context_t *context, int64_t nsec); -int gxio_mpipe_adjust_timestamp_freq(gxio_mpipe_context_t * context, +int gxio_mpipe_adjust_timestamp_freq(gxio_mpipe_context_t *context, int32_t ppb); -int gxio_mpipe_arm_pollfd(gxio_mpipe_context_t * context, int pollfd_cookie); +int gxio_mpipe_arm_pollfd(gxio_mpipe_context_t *context, int pollfd_cookie); -int gxio_mpipe_close_pollfd(gxio_mpipe_context_t * context, int pollfd_cookie); +int gxio_mpipe_close_pollfd(gxio_mpipe_context_t *context, int pollfd_cookie); -int gxio_mpipe_get_mmio_base(gxio_mpipe_context_t * context, HV_PTE *base); +int gxio_mpipe_get_mmio_base(gxio_mpipe_context_t *context, HV_PTE *base); -int gxio_mpipe_check_mmio_offset(gxio_mpipe_context_t * context, +int gxio_mpipe_check_mmio_offset(gxio_mpipe_context_t *context, unsigned long offset, unsigned long size); #endif /* !__GXIO_MPIPE_LINUX_RPC_H__ */ diff --git a/arch/tile/include/gxio/iorpc_mpipe_info.h b/arch/tile/include/gxio/iorpc_mpipe_info.h index 476c5e5ca22c..f0b04284468b 100644 --- a/arch/tile/include/gxio/iorpc_mpipe_info.h +++ b/arch/tile/include/gxio/iorpc_mpipe_info.h @@ -33,18 +33,18 @@ #define GXIO_MPIPE_INFO_OP_CHECK_MMIO_OFFSET IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x8001) -int gxio_mpipe_info_instance_aux(gxio_mpipe_info_context_t * context, +int gxio_mpipe_info_instance_aux(gxio_mpipe_info_context_t *context, _gxio_mpipe_link_name_t name); -int gxio_mpipe_info_enumerate_aux(gxio_mpipe_info_context_t * context, +int gxio_mpipe_info_enumerate_aux(gxio_mpipe_info_context_t *context, unsigned int idx, - _gxio_mpipe_link_name_t * name, - _gxio_mpipe_link_mac_t * mac); + _gxio_mpipe_link_name_t *name, + _gxio_mpipe_link_mac_t *mac); -int gxio_mpipe_info_get_mmio_base(gxio_mpipe_info_context_t * context, +int gxio_mpipe_info_get_mmio_base(gxio_mpipe_info_context_t *context, HV_PTE *base); -int gxio_mpipe_info_check_mmio_offset(gxio_mpipe_info_context_t * context, +int gxio_mpipe_info_check_mmio_offset(gxio_mpipe_info_context_t *context, unsigned long offset, unsigned long size); #endif /* !__GXIO_MPIPE_INFO_LINUX_RPC_H__ */ diff --git a/arch/tile/include/gxio/iorpc_trio.h b/arch/tile/include/gxio/iorpc_trio.h index d95b96fd6c93..376a4f771167 100644 --- a/arch/tile/include/gxio/iorpc_trio.h +++ b/arch/tile/include/gxio/iorpc_trio.h @@ -46,59 +46,59 @@ #define GXIO_TRIO_OP_GET_MMIO_BASE IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x8000) #define GXIO_TRIO_OP_CHECK_MMIO_OFFSET IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x8001) -int gxio_trio_alloc_asids(gxio_trio_context_t * context, unsigned int count, +int gxio_trio_alloc_asids(gxio_trio_context_t *context, unsigned int count, unsigned int first, unsigned int flags); -int gxio_trio_alloc_memory_maps(gxio_trio_context_t * context, +int gxio_trio_alloc_memory_maps(gxio_trio_context_t *context, unsigned int count, unsigned int first, unsigned int flags); -int gxio_trio_alloc_scatter_queues(gxio_trio_context_t * context, +int gxio_trio_alloc_scatter_queues(gxio_trio_context_t *context, unsigned int count, unsigned int first, unsigned int flags); -int gxio_trio_alloc_pio_regions(gxio_trio_context_t * context, +int gxio_trio_alloc_pio_regions(gxio_trio_context_t *context, unsigned int count, unsigned int first, unsigned int flags); -int gxio_trio_init_pio_region_aux(gxio_trio_context_t * context, +int gxio_trio_init_pio_region_aux(gxio_trio_context_t *context, unsigned int pio_region, unsigned int mac, uint32_t bus_address_hi, unsigned int flags); -int gxio_trio_init_memory_map_mmu_aux(gxio_trio_context_t * context, +int gxio_trio_init_memory_map_mmu_aux(gxio_trio_context_t *context, unsigned int map, unsigned long va, uint64_t size, unsigned int asid, unsigned int mac, uint64_t bus_address, unsigned int node, unsigned int order_mode); -int gxio_trio_get_port_property(gxio_trio_context_t * context, +int gxio_trio_get_port_property(gxio_trio_context_t *context, struct pcie_trio_ports_property *trio_ports); -int gxio_trio_config_legacy_intr(gxio_trio_context_t * context, int inter_x, +int gxio_trio_config_legacy_intr(gxio_trio_context_t *context, int inter_x, int inter_y, int inter_ipi, int inter_event, unsigned int mac, unsigned int intx); -int gxio_trio_config_msi_intr(gxio_trio_context_t * context, int inter_x, +int gxio_trio_config_msi_intr(gxio_trio_context_t *context, int inter_x, int inter_y, int inter_ipi, int inter_event, unsigned int mac, unsigned int mem_map, uint64_t mem_map_base, uint64_t mem_map_limit, unsigned int asid); -int gxio_trio_set_mps_mrs(gxio_trio_context_t * context, uint16_t mps, +int gxio_trio_set_mps_mrs(gxio_trio_context_t *context, uint16_t mps, uint16_t mrs, unsigned int mac); -int gxio_trio_force_rc_link_up(gxio_trio_context_t * context, unsigned int mac); +int gxio_trio_force_rc_link_up(gxio_trio_context_t *context, unsigned int mac); -int gxio_trio_force_ep_link_up(gxio_trio_context_t * context, unsigned int mac); +int gxio_trio_force_ep_link_up(gxio_trio_context_t *context, unsigned int mac); -int gxio_trio_get_mmio_base(gxio_trio_context_t * context, HV_PTE *base); +int gxio_trio_get_mmio_base(gxio_trio_context_t *context, HV_PTE *base); -int gxio_trio_check_mmio_offset(gxio_trio_context_t * context, +int gxio_trio_check_mmio_offset(gxio_trio_context_t *context, unsigned long offset, unsigned long size); #endif /* !__GXIO_TRIO_LINUX_RPC_H__ */ diff --git a/arch/tile/include/gxio/iorpc_usb_host.h b/arch/tile/include/gxio/iorpc_usb_host.h index 8622e7d126ad..79962a97de8e 100644 --- a/arch/tile/include/gxio/iorpc_usb_host.h +++ b/arch/tile/include/gxio/iorpc_usb_host.h @@ -31,16 +31,16 @@ #define GXIO_USB_HOST_OP_GET_MMIO_BASE IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x8000) #define GXIO_USB_HOST_OP_CHECK_MMIO_OFFSET IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x8001) -int gxio_usb_host_cfg_interrupt(gxio_usb_host_context_t * context, int inter_x, +int gxio_usb_host_cfg_interrupt(gxio_usb_host_context_t *context, int inter_x, int inter_y, int inter_ipi, int inter_event); -int gxio_usb_host_register_client_memory(gxio_usb_host_context_t * context, +int gxio_usb_host_register_client_memory(gxio_usb_host_context_t *context, HV_PTE pte, unsigned int flags); -int gxio_usb_host_get_mmio_base(gxio_usb_host_context_t * context, +int gxio_usb_host_get_mmio_base(gxio_usb_host_context_t *context, HV_PTE *base); -int gxio_usb_host_check_mmio_offset(gxio_usb_host_context_t * context, +int gxio_usb_host_check_mmio_offset(gxio_usb_host_context_t *context, unsigned long offset, unsigned long size); #endif /* !__GXIO_USB_HOST_LINUX_RPC_H__ */ diff --git a/arch/tile/include/gxio/usb_host.h b/arch/tile/include/gxio/usb_host.h index 5eedec0e988e..93c9636d2dd7 100644 --- a/arch/tile/include/gxio/usb_host.h +++ b/arch/tile/include/gxio/usb_host.h @@ -53,7 +53,7 @@ typedef struct { * @return Zero if the context was successfully initialized, else a * GXIO_ERR_xxx error code. */ -extern int gxio_usb_host_init(gxio_usb_host_context_t * context, int usb_index, +extern int gxio_usb_host_init(gxio_usb_host_context_t *context, int usb_index, int is_ehci); /* Destroy a USB context. @@ -68,20 +68,20 @@ extern int gxio_usb_host_init(gxio_usb_host_context_t * context, int usb_index, * @return Zero if the context was successfully destroyed, else a * GXIO_ERR_xxx error code. */ -extern int gxio_usb_host_destroy(gxio_usb_host_context_t * context); +extern int gxio_usb_host_destroy(gxio_usb_host_context_t *context); /* Retrieve the address of the shim's MMIO registers. * * @param context Pointer to a properly initialized gxio_usb_host_context_t. * @return The address of the shim's MMIO registers. */ -extern void *gxio_usb_host_get_reg_start(gxio_usb_host_context_t * context); +extern void *gxio_usb_host_get_reg_start(gxio_usb_host_context_t *context); /* Retrieve the length of the shim's MMIO registers. * * @param context Pointer to a properly initialized gxio_usb_host_context_t. * @return The length of the shim's MMIO registers. */ -extern size_t gxio_usb_host_get_reg_len(gxio_usb_host_context_t * context); +extern size_t gxio_usb_host_get_reg_len(gxio_usb_host_context_t *context); #endif /* _GXIO_USB_H_ */ From 88e2692a4dff0d1f80e9761ade3db2ea59206c1e Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Mon, 16 Sep 2013 14:18:21 -0400 Subject: [PATCH 157/350] tile: header updates from upstream The hardware architecture descriptor headers have been updated, in particular to reflect some larger MMIO fields on the mPIPE shims for controlling the network hardware, from the recent Gx72 release. Signed-off-by: Chris Metcalf --- arch/tile/include/arch/mpipe.h | 24 ++++++++--- arch/tile/include/arch/mpipe_constants.h | 6 +-- arch/tile/include/arch/mpipe_shm.h | 54 +++++++++++++++--------- arch/tile/include/arch/trio_constants.h | 10 ++--- 4 files changed, 59 insertions(+), 35 deletions(-) diff --git a/arch/tile/include/arch/mpipe.h b/arch/tile/include/arch/mpipe.h index 8a33912fd6cc..904538e754d8 100644 --- a/arch/tile/include/arch/mpipe.h +++ b/arch/tile/include/arch/mpipe.h @@ -176,7 +176,18 @@ typedef union */ uint_reg_t stack_idx : 5; /* Reserved. */ - uint_reg_t __reserved_2 : 5; + uint_reg_t __reserved_2 : 3; + /* + * Instance ID. For devices that support automatic buffer return between + * mPIPE instances, this field indicates the buffer owner. If the INST + * field does not match the mPIPE's instance number when a packet is + * egressed, buffers with HWB set will be returned to the other mPIPE + * instance. Note that not all devices support multi-mPIPE buffer + * return. The MPIPE_EDMA_INFO.REMOTE_BUFF_RTN_SUPPORT bit indicates + * whether the INST field in the buffer descriptor is populated by iDMA + * hardware. This field is ignored on writes. + */ + uint_reg_t inst : 2; /* * Reads as one to indicate that this is a hardware managed buffer. * Ignored on writes since all buffers on a given stack are the same size. @@ -205,7 +216,8 @@ typedef union uint_reg_t c : 2; uint_reg_t size : 3; uint_reg_t hwb : 1; - uint_reg_t __reserved_2 : 5; + uint_reg_t inst : 2; + uint_reg_t __reserved_2 : 3; uint_reg_t stack_idx : 5; uint_reg_t __reserved_1 : 6; int_reg_t va : 35; @@ -231,9 +243,9 @@ typedef union /* Reserved. */ uint_reg_t __reserved_0 : 3; /* eDMA ring being accessed */ - uint_reg_t ring : 5; + uint_reg_t ring : 6; /* Reserved. */ - uint_reg_t __reserved_1 : 18; + uint_reg_t __reserved_1 : 17; /* * This field of the address selects the region (address space) to be * accessed. For the egress DMA post region, this field must be 5. @@ -250,8 +262,8 @@ typedef union uint_reg_t svc_dom : 5; uint_reg_t __reserved_2 : 6; uint_reg_t region : 3; - uint_reg_t __reserved_1 : 18; - uint_reg_t ring : 5; + uint_reg_t __reserved_1 : 17; + uint_reg_t ring : 6; uint_reg_t __reserved_0 : 3; #endif }; diff --git a/arch/tile/include/arch/mpipe_constants.h b/arch/tile/include/arch/mpipe_constants.h index 410a0400e055..84022ac5fe82 100644 --- a/arch/tile/include/arch/mpipe_constants.h +++ b/arch/tile/include/arch/mpipe_constants.h @@ -16,13 +16,13 @@ #ifndef __ARCH_MPIPE_CONSTANTS_H__ #define __ARCH_MPIPE_CONSTANTS_H__ -#define MPIPE_NUM_CLASSIFIERS 10 +#define MPIPE_NUM_CLASSIFIERS 16 #define MPIPE_CLS_MHZ 1200 -#define MPIPE_NUM_EDMA_RINGS 32 +#define MPIPE_NUM_EDMA_RINGS 64 #define MPIPE_NUM_SGMII_MACS 16 -#define MPIPE_NUM_XAUI_MACS 4 +#define MPIPE_NUM_XAUI_MACS 16 #define MPIPE_NUM_LOOPBACK_CHANNELS 4 #define MPIPE_NUM_NON_LB_CHANNELS 28 diff --git a/arch/tile/include/arch/mpipe_shm.h b/arch/tile/include/arch/mpipe_shm.h index f2e9e122818d..13b3c4300e50 100644 --- a/arch/tile/include/arch/mpipe_shm.h +++ b/arch/tile/include/arch/mpipe_shm.h @@ -44,8 +44,14 @@ typedef union * descriptors toggles each time the ring tail pointer wraps. */ uint_reg_t gen : 1; + /** + * For devices with EDMA reorder support, this field allows the + * descriptor to select the egress FIFO. The associated DMA ring must + * have ALLOW_EFIFO_SEL enabled. + */ + uint_reg_t efifo_sel : 6; /** Reserved. Must be zero. */ - uint_reg_t r0 : 7; + uint_reg_t r0 : 1; /** Checksum generation enabled for this transfer. */ uint_reg_t csum : 1; /** @@ -110,7 +116,8 @@ typedef union uint_reg_t notif : 1; uint_reg_t ns : 1; uint_reg_t csum : 1; - uint_reg_t r0 : 7; + uint_reg_t r0 : 1; + uint_reg_t efifo_sel : 6; uint_reg_t gen : 1; #endif @@ -126,14 +133,16 @@ typedef union /** Reserved. */ uint_reg_t __reserved_1 : 3; /** - * Instance ID. For devices that support more than one mPIPE instance, - * this field indicates the buffer owner. If the INST field does not - * match the mPIPE's instance number when a packet is egressed, buffers - * with HWB set will be returned to the other mPIPE instance. + * Instance ID. For devices that support automatic buffer return between + * mPIPE instances, this field indicates the buffer owner. If the INST + * field does not match the mPIPE's instance number when a packet is + * egressed, buffers with HWB set will be returned to the other mPIPE + * instance. Note that not all devices support multi-mPIPE buffer + * return. The MPIPE_EDMA_INFO.REMOTE_BUFF_RTN_SUPPORT bit indicates + * whether the INST field in the buffer descriptor is populated by iDMA + * hardware. */ - uint_reg_t inst : 1; - /** Reserved. */ - uint_reg_t __reserved_2 : 1; + uint_reg_t inst : 2; /** * Always set to one by hardware in iDMA packet descriptors. For eDMA, * indicates whether the buffer will be released to the buffer stack @@ -166,8 +175,7 @@ typedef union uint_reg_t c : 2; uint_reg_t size : 3; uint_reg_t hwb : 1; - uint_reg_t __reserved_2 : 1; - uint_reg_t inst : 1; + uint_reg_t inst : 2; uint_reg_t __reserved_1 : 3; uint_reg_t stack_idx : 5; uint_reg_t __reserved_0 : 6; @@ -408,7 +416,10 @@ typedef union /** * Sequence number applied when packet is distributed. Classifier * selects which sequence number is to be applied by writing the 13-bit - * SQN-selector into this field. + * SQN-selector into this field. For devices that support EXT_SQN (as + * indicated in IDMA_INFO.EXT_SQN_SUPPORT), the GP_SQN can be extended to + * 32-bits via the IDMA_CTL.EXT_SQN register. In this case the + * PACKET_SQN will be reduced to 32 bits. */ uint_reg_t gp_sqn : 16; /** @@ -451,14 +462,16 @@ typedef union /** Reserved. */ uint_reg_t __reserved_5 : 3; /** - * Instance ID. For devices that support more than one mPIPE instance, - * this field indicates the buffer owner. If the INST field does not - * match the mPIPE's instance number when a packet is egressed, buffers - * with HWB set will be returned to the other mPIPE instance. + * Instance ID. For devices that support automatic buffer return between + * mPIPE instances, this field indicates the buffer owner. If the INST + * field does not match the mPIPE's instance number when a packet is + * egressed, buffers with HWB set will be returned to the other mPIPE + * instance. Note that not all devices support multi-mPIPE buffer + * return. The MPIPE_EDMA_INFO.REMOTE_BUFF_RTN_SUPPORT bit indicates + * whether the INST field in the buffer descriptor is populated by iDMA + * hardware. */ - uint_reg_t inst : 1; - /** Reserved. */ - uint_reg_t __reserved_6 : 1; + uint_reg_t inst : 2; /** * Always set to one by hardware in iDMA packet descriptors. For eDMA, * indicates whether the buffer will be released to the buffer stack @@ -491,8 +504,7 @@ typedef union uint_reg_t c : 2; uint_reg_t size : 3; uint_reg_t hwb : 1; - uint_reg_t __reserved_6 : 1; - uint_reg_t inst : 1; + uint_reg_t inst : 2; uint_reg_t __reserved_5 : 3; uint_reg_t stack_idx : 5; uint_reg_t __reserved_4 : 6; diff --git a/arch/tile/include/arch/trio_constants.h b/arch/tile/include/arch/trio_constants.h index 628b045436b8..85647e91a458 100644 --- a/arch/tile/include/arch/trio_constants.h +++ b/arch/tile/include/arch/trio_constants.h @@ -16,21 +16,21 @@ #ifndef __ARCH_TRIO_CONSTANTS_H__ #define __ARCH_TRIO_CONSTANTS_H__ -#define TRIO_NUM_ASIDS 16 +#define TRIO_NUM_ASIDS 32 #define TRIO_NUM_TLBS_PER_ASID 16 #define TRIO_NUM_TPIO_REGIONS 8 #define TRIO_LOG2_NUM_TPIO_REGIONS 3 -#define TRIO_NUM_MAP_MEM_REGIONS 16 -#define TRIO_LOG2_NUM_MAP_MEM_REGIONS 4 +#define TRIO_NUM_MAP_MEM_REGIONS 32 +#define TRIO_LOG2_NUM_MAP_MEM_REGIONS 5 #define TRIO_NUM_MAP_SQ_REGIONS 8 #define TRIO_LOG2_NUM_MAP_SQ_REGIONS 3 #define TRIO_LOG2_NUM_SQ_FIFO_ENTRIES 6 -#define TRIO_NUM_PUSH_DMA_RINGS 32 +#define TRIO_NUM_PUSH_DMA_RINGS 64 -#define TRIO_NUM_PULL_DMA_RINGS 32 +#define TRIO_NUM_PULL_DMA_RINGS 64 #endif /* __ARCH_TRIO_CONSTANTS_H__ */ From e823acc0a9e36a5645cdf0c57fa5f738b51bb999 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Mon, 16 Sep 2013 14:41:21 -0400 Subject: [PATCH 158/350] tile: remove stray blank space The compat sys_llseek() definition addition added a bogus space on an otherwise-blank line. Signed-off-by: Chris Metcalf --- arch/tile/kernel/compat.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/tile/kernel/compat.c b/arch/tile/kernel/compat.c index ed378416b86a..49120843ff96 100644 --- a/arch/tile/kernel/compat.c +++ b/arch/tile/kernel/compat.c @@ -84,7 +84,7 @@ COMPAT_SYSCALL_DEFINE5(llseek, unsigned int, fd, unsigned int, offset_high, { return sys_llseek(fd, offset_high, offset_low, result, origin); } - + /* Provide the compat syscall number to call mapping. */ #undef __SYSCALL #define __SYSCALL(nr, call) [nr] = (call), From 606035e76e79b14bf7a7c219140c045a952cc76e Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 14 Sep 2013 17:32:12 -0400 Subject: [PATCH 159/350] autofs4: close the races around autofs4_notify_daemon() Don't drop ->wq_mutex before calling autofs4_notify_daemon() only to regain it there. Besides being pointless, that opens a race window where autofs4_wait_release() could've come and freed wq->name.name. And do the debugging printk in the "reused an existing wq" case before dropping ->wq_mutex - the same reason... Signed-off-by: Al Viro Acked-by: Ian Kent --- fs/autofs4/waitq.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-) diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c index 3db70dae40d3..689e40d983ad 100644 --- a/fs/autofs4/waitq.c +++ b/fs/autofs4/waitq.c @@ -109,13 +109,7 @@ static void autofs4_notify_daemon(struct autofs_sb_info *sbi, pkt.hdr.proto_version = sbi->version; pkt.hdr.type = type; - mutex_lock(&sbi->wq_mutex); - /* Check if we have become catatonic */ - if (sbi->catatonic) { - mutex_unlock(&sbi->wq_mutex); - return; - } switch (type) { /* Kernel protocol v4 missing and expire packets */ case autofs_ptype_missing: @@ -427,7 +421,6 @@ int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry, wq->tgid = current->tgid; wq->status = -EINTR; /* Status return if interrupted */ wq->wait_ctr = 2; - mutex_unlock(&sbi->wq_mutex); if (sbi->version < 5) { if (notify == NFY_MOUNT) @@ -449,15 +442,15 @@ int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry, (unsigned long) wq->wait_queue_token, wq->name.len, wq->name.name, notify); - /* autofs4_notify_daemon() may block */ + /* autofs4_notify_daemon() may block; it will unlock ->wq_mutex */ autofs4_notify_daemon(sbi, wq, type); } else { wq->wait_ctr++; - mutex_unlock(&sbi->wq_mutex); - kfree(qstr.name); DPRINTK("existing wait id = 0x%08lx, name = %.*s, nfy=%d", (unsigned long) wq->wait_queue_token, wq->name.len, wq->name.name, notify); + mutex_unlock(&sbi->wq_mutex); + kfree(qstr.name); } /* From 0854d450e229e37102a76e3ccf065d8e8137846f Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Mon, 16 Sep 2013 14:51:55 +0200 Subject: [PATCH 160/350] vfs: improve i_op->atomic_open() documentation Fix documentation of ->atomic_open() and related functions: finish_open() and finish_no_open(). Also add details that seem to be unclear and a source of bugs (some of which are fixed in the following series). Cc-ing maintainers of all filesystems implementing ->atomic_open(). Signed-off-by: Miklos Szeredi Cc: Eric Van Hensbergen Cc: Sage Weil Cc: Steve French Cc: Steven Whitehouse Cc: Trond Myklebust Signed-off-by: Al Viro --- Documentation/filesystems/vfs.txt | 14 +++++++------- fs/open.c | 21 ++++++++++++++++++--- 2 files changed, 25 insertions(+), 10 deletions(-) diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt index f93a88250a44..deb48b5fd883 100644 --- a/Documentation/filesystems/vfs.txt +++ b/Documentation/filesystems/vfs.txt @@ -359,11 +359,9 @@ struct inode_operations { ssize_t (*listxattr) (struct dentry *, char *, size_t); int (*removexattr) (struct dentry *, const char *); void (*update_time)(struct inode *, struct timespec *, int); - int (*atomic_open)(struct inode *, struct dentry *, + int (*atomic_open)(struct inode *, struct dentry *, struct file *, + unsigned open_flag, umode_t create_mode, int *opened); int (*tmpfile) (struct inode *, struct dentry *, umode_t); -} ____cacheline_aligned; - struct file *, unsigned open_flag, - umode_t create_mode, int *opened); }; Again, all methods are called without any locks being held, unless @@ -470,9 +468,11 @@ otherwise noted. method the filesystem can look up, possibly create and open the file in one atomic operation. If it cannot perform this (e.g. the file type turned out to be wrong) it may signal this by returning 1 instead of - usual 0 or -ve . This method is only called if the last - component is negative or needs lookup. Cached positive dentries are - still handled by f_op->open(). + usual 0 or -ve . This method is only called if the last component is + negative or needs lookup. Cached positive dentries are still handled by + f_op->open(). If the file was created, the FILE_CREATED flag should be + set in "opened". In case of O_EXCL the method must only succeed if the + file didn't exist and hence FILE_CREATED shall always be set on success. tmpfile: called in the end of O_TMPFILE open(). Optional, equivalent to atomically creating, opening and unlinking a file in given directory. diff --git a/fs/open.c b/fs/open.c index 2a731b0d08bc..d420331ca32a 100644 --- a/fs/open.c +++ b/fs/open.c @@ -744,14 +744,24 @@ cleanup_file: /** * finish_open - finish opening a file - * @od: opaque open data + * @file: file pointer * @dentry: pointer to dentry * @open: open callback + * @opened: state of open * * This can be used to finish opening a file passed to i_op->atomic_open(). * * If the open callback is set to NULL, then the standard f_op->open() * filesystem callback is substituted. + * + * NB: the dentry reference is _not_ consumed. If, for example, the dentry is + * the return value of d_splice_alias(), then the caller needs to perform dput() + * on it after finish_open(). + * + * On successful return @file is a fully instantiated open file. After this, if + * an error occurs in ->atomic_open(), it needs to clean up with fput(). + * + * Returns zero on success or -errno if the open failed. */ int finish_open(struct file *file, struct dentry *dentry, int (*open)(struct inode *, struct file *), @@ -772,11 +782,16 @@ EXPORT_SYMBOL(finish_open); /** * finish_no_open - finish ->atomic_open() without opening the file * - * @od: opaque open data + * @file: file pointer * @dentry: dentry or NULL (as returned from ->lookup()) * * This can be used to set the result of a successful lookup in ->atomic_open(). - * The filesystem's atomic_open() method shall return NULL after calling this. + * + * NB: unlike finish_open() this function does consume the dentry reference and + * the caller need not dput() it. + * + * Returns "1" which must be the return value of ->atomic_open() after having + * called this function. */ int finish_no_open(struct file *file, struct dentry *dentry) { From dfb1d61b0e9f9e2c542e9adc8d970689f4114ff6 Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Mon, 16 Sep 2013 14:51:59 +0200 Subject: [PATCH 161/350] cifs: fix filp leak in cifs_atomic_open() If an error occurs after having called finish_open() then fput() needs to be called on the already opened file. Signed-off-by: Miklos Szeredi Cc: Steve French Cc: stable@vger.kernel.org Signed-off-by: Al Viro --- fs/cifs/dir.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index d3e2eaa503a6..5384c2a640ca 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -500,6 +500,7 @@ cifs_atomic_open(struct inode *inode, struct dentry *direntry, if (server->ops->close) server->ops->close(xid, tcon, &fid); cifs_del_pending_open(&open); + fput(file); rc = -ENOMEM; } From c5bf8fef52ce184bd48b76d1881df07b43f5091b Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Mon, 16 Sep 2013 14:52:03 +0200 Subject: [PATCH 162/350] gfs2: set FILE_CREATED In gfs2_create_inode() set FILE_CREATED in *opened. Signed-off-by: Miklos Szeredi Cc: Steven Whitehouse Signed-off-by: Al Viro --- fs/gfs2/inode.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c index 64915eeae5a7..ced3257f06e8 100644 --- a/fs/gfs2/inode.c +++ b/fs/gfs2/inode.c @@ -694,8 +694,10 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry, mark_inode_dirty(inode); d_instantiate(dentry, inode); - if (file) + if (file) { + *opened |= FILE_CREATED; error = finish_open(file, dentry, gfs2_open_common, opened); + } gfs2_glock_dq_uninit(ghs); gfs2_glock_dq_uninit(ghs + 1); return error; From 01c919abaf2f3d6a8e59eddf4ee22df1631ab067 Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Mon, 16 Sep 2013 14:52:04 +0200 Subject: [PATCH 163/350] nfs: set FILE_CREATED Set FILE_CREATED on O_CREAT|O_EXCL. If the NFS server honored our request for exclusivity then this must be correct. Currently this is a no-op, since the VFS sets FILE_CREATED anyway. The next patch will, however, require this flag to be always set by filesystems. Signed-off-by: Miklos Szeredi Cc: Trond Myklebust Signed-off-by: Al Viro --- fs/nfs/dir.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index de434f309af0..854a8f05a610 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -1392,6 +1392,9 @@ static int nfs_finish_open(struct nfs_open_context *ctx, { int err; + if ((open_flags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL)) + *opened |= FILE_CREATED; + err = finish_open(file, dentry, do_open, opened); if (err) goto out; From 116cc0225381415b96551f725455d067f63a76a0 Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Mon, 16 Sep 2013 14:52:05 +0200 Subject: [PATCH 164/350] vfs: don't set FILE_CREATED before calling ->atomic_open() If O_CREAT|O_EXCL are passed to open, then we know that either - the file is successfully created, or - the operation fails in some way. So previously we set FILE_CREATED before calling ->atomic_open() so the filesystem doesn't have to. This, however, led to bugs in the implementation that went unnoticed when the filesystem didn't check for existence, yet returned success. To prevent this kind of bug, require filesystems to always explicitly set FILE_CREATED on O_CREAT|O_EXCL and verify this in the VFS. Also added a couple more verifications for the result of atomic_open(): - Warn if filesystem set FILE_CREATED despite the lack of O_CREAT. - Warn if filesystem set FILE_CREATED but gave a negative dentry. Signed-off-by: Miklos Szeredi Signed-off-by: Al Viro --- fs/namei.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/fs/namei.c b/fs/namei.c index 0dc4cbf21f37..22eb5484774c 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -2656,6 +2656,7 @@ static int atomic_open(struct nameidata *nd, struct dentry *dentry, int acc_mode; int create_error = 0; struct dentry *const DENTRY_NOT_SET = (void *) -1UL; + bool excl; BUG_ON(dentry->d_inode); @@ -2669,10 +2670,9 @@ static int atomic_open(struct nameidata *nd, struct dentry *dentry, if ((open_flag & O_CREAT) && !IS_POSIXACL(dir)) mode &= ~current_umask(); - if ((open_flag & (O_EXCL | O_CREAT)) == (O_EXCL | O_CREAT)) { + excl = (open_flag & (O_EXCL | O_CREAT)) == (O_EXCL | O_CREAT); + if (excl) open_flag &= ~O_TRUNC; - *opened |= FILE_CREATED; - } /* * Checking write permission is tricky, bacuse we don't know if we are @@ -2726,7 +2726,11 @@ static int atomic_open(struct nameidata *nd, struct dentry *dentry, } acc_mode = op->acc_mode; + if (WARN_ON(excl && !(*opened & FILE_CREATED))) + *opened |= FILE_CREATED; + if (*opened & FILE_CREATED) { + WARN_ON(!(open_flag & O_CREAT)); fsnotify_create(dir, dentry); acc_mode = MAY_OPEN; } @@ -2740,6 +2744,7 @@ static int atomic_open(struct nameidata *nd, struct dentry *dentry, dput(dentry); dentry = file->f_path.dentry; } + WARN_ON(!dentry->d_inode && (*opened & FILE_CREATED)); if (create_error && dentry->d_inode == NULL) { error = create_error; goto out; From 7a3a62128388a6af771e99df8628ddee2e8be7ca Mon Sep 17 00:00:00 2001 From: Olaf Hering Date: Fri, 13 Sep 2013 14:52:01 -0700 Subject: [PATCH 165/350] drivers/net/ethernet/ibm/ehea/ehea_main.c: add alias entry for portN properties Use separate table for alias entries in the ehea module, otherwise the probe() function will operate on the separate ports instead of the lhea-"root" entry of the device-tree Addresses https://bugzilla.novell.com/show_bug.cgi?id=435215 [ Thadeu notes that: "... this issue might happen with the generation of initrd, when the scripts check for /sys/class/net/eth0/device/modalias, which links to the port device at /sys/devices/ibmebus/23c00400.lhea/port0/" ] Signed-off-by: Jeff Mahoney Signed-off-by: Olaf Hering Signed-off-by: Jiri Slaby Signed-off-by: Andrew Morton Acked-by: Thadeu Lima de Souza Cascardo Signed-off-by: David S. Miller --- drivers/net/ethernet/ibm/ehea/ehea_main.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/ibm/ehea/ehea_main.c b/drivers/net/ethernet/ibm/ehea/ehea_main.c index 04e0ef1d3769..2d1c6bdd3618 100644 --- a/drivers/net/ethernet/ibm/ehea/ehea_main.c +++ b/drivers/net/ethernet/ibm/ehea/ehea_main.c @@ -102,6 +102,19 @@ static int ehea_probe_adapter(struct platform_device *dev); static int ehea_remove(struct platform_device *dev); +static struct of_device_id ehea_module_device_table[] = { + { + .name = "lhea", + .compatible = "IBM,lhea", + }, + { + .type = "network", + .compatible = "IBM,lhea-ethernet", + }, + {}, +}; +MODULE_DEVICE_TABLE(of, ehea_module_device_table); + static struct of_device_id ehea_device_table[] = { { .name = "lhea", @@ -109,7 +122,6 @@ static struct of_device_id ehea_device_table[] = { }, {}, }; -MODULE_DEVICE_TABLE(of, ehea_device_table); static struct platform_driver ehea_driver = { .driver = { From 6a391e7bf26c04a6df5f77290e1146941d210d49 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Sun, 15 Sep 2013 00:22:47 +0200 Subject: [PATCH 166/350] bgmac: fix internal switch initialization MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Some devices (BCM4749, BCM5357, BCM53572) have internal switch that requires initialization. We already have code for this, but because of the typo in code it was never working. This resulted in network not working for some routers and possibility of soft-bricking them. Use correct bit for switch initialization and fix typo in the define. Signed-off-by: Rafał Miłecki Cc: stable@vger.kernel.org Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bgmac.c | 2 +- drivers/net/ethernet/broadcom/bgmac.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c index eec0af45b859..1c6bc9678774 100644 --- a/drivers/net/ethernet/broadcom/bgmac.c +++ b/drivers/net/ethernet/broadcom/bgmac.c @@ -908,7 +908,7 @@ static void bgmac_chip_reset(struct bgmac *bgmac) struct bcma_drv_cc *cc = &bgmac->core->bus->drv_cc; u8 et_swtype = 0; u8 sw_type = BGMAC_CHIPCTL_1_SW_TYPE_EPHY | - BGMAC_CHIPCTL_1_IF_TYPE_RMII; + BGMAC_CHIPCTL_1_IF_TYPE_MII; char buf[2]; if (bcm47xx_nvram_getenv("et_swtype", buf, 1) > 0) { diff --git a/drivers/net/ethernet/broadcom/bgmac.h b/drivers/net/ethernet/broadcom/bgmac.h index 98d4b5fcc070..12a35cf9bb81 100644 --- a/drivers/net/ethernet/broadcom/bgmac.h +++ b/drivers/net/ethernet/broadcom/bgmac.h @@ -333,7 +333,7 @@ #define BGMAC_CHIPCTL_1_IF_TYPE_MASK 0x00000030 #define BGMAC_CHIPCTL_1_IF_TYPE_RMII 0x00000000 -#define BGMAC_CHIPCTL_1_IF_TYPE_MI 0x00000010 +#define BGMAC_CHIPCTL_1_IF_TYPE_MII 0x00000010 #define BGMAC_CHIPCTL_1_IF_TYPE_RGMII 0x00000020 #define BGMAC_CHIPCTL_1_SW_TYPE_MASK 0x000000C0 #define BGMAC_CHIPCTL_1_SW_TYPE_EPHY 0x00000000 From 3647268dedfe95945be05c9dde2bdbda7cfc6e91 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Sun, 15 Sep 2013 22:49:08 +0200 Subject: [PATCH 167/350] bgmac: allow bigger et_swtype nvram variable MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Without this patch it is impossible to read et_swtype, because the 1 byte space is needed for the terminating null byte. The max expected value is 0xF, so now it should be possible to read decimal form ("15") and hex form ("0xF"). Signed-off-by: Hauke Mehrtens Signed-off-by: Rafał Miłecki Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bgmac.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c index 1c6bc9678774..59f3e0ce56df 100644 --- a/drivers/net/ethernet/broadcom/bgmac.c +++ b/drivers/net/ethernet/broadcom/bgmac.c @@ -909,9 +909,9 @@ static void bgmac_chip_reset(struct bgmac *bgmac) u8 et_swtype = 0; u8 sw_type = BGMAC_CHIPCTL_1_SW_TYPE_EPHY | BGMAC_CHIPCTL_1_IF_TYPE_MII; - char buf[2]; + char buf[4]; - if (bcm47xx_nvram_getenv("et_swtype", buf, 1) > 0) { + if (bcm47xx_nvram_getenv("et_swtype", buf, sizeof(buf)) > 0) { if (kstrtou8(buf, 0, &et_swtype)) bgmac_err(bgmac, "Failed to parse et_swtype (%s)\n", buf); From 9900303ec7698d82c8f7a018b134a7c1ec557499 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Sun, 15 Sep 2013 23:13:18 +0200 Subject: [PATCH 168/350] bgmac: implement unaligned addressing for DMA rings that support it MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is important patch for new devices that support unaligned addressing. That devices suffer from the backward-compatibility bug in DMA engine. In theory we should be able to use old mechanism, but in practice DMA address seems to be randomly copied into status register when hardware reaches end of a ring. This breaks reading slot number from status register and we can't use DMA anymore. Signed-off-by: Rafał Miłecki Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bgmac.c | 38 ++++++++++++++++++++------- drivers/net/ethernet/broadcom/bgmac.h | 2 ++ 2 files changed, 30 insertions(+), 10 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c index 59f3e0ce56df..249468f95365 100644 --- a/drivers/net/ethernet/broadcom/bgmac.c +++ b/drivers/net/ethernet/broadcom/bgmac.c @@ -157,6 +157,7 @@ static netdev_tx_t bgmac_dma_tx_add(struct bgmac *bgmac, if (++ring->end >= BGMAC_TX_RING_SLOTS) ring->end = 0; bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_TX_INDEX, + ring->index_base + ring->end * sizeof(struct bgmac_dma_desc)); /* Always keep one slot free to allow detecting bugged calls. */ @@ -181,6 +182,8 @@ static void bgmac_dma_tx_free(struct bgmac *bgmac, struct bgmac_dma_ring *ring) /* The last slot that hardware didn't consume yet */ empty_slot = bgmac_read(bgmac, ring->mmio_base + BGMAC_DMA_TX_STATUS); empty_slot &= BGMAC_DMA_TX_STATDPTR; + empty_slot -= ring->index_base; + empty_slot &= BGMAC_DMA_TX_STATDPTR; empty_slot /= sizeof(struct bgmac_dma_desc); while (ring->start != empty_slot) { @@ -274,6 +277,8 @@ static int bgmac_dma_rx_read(struct bgmac *bgmac, struct bgmac_dma_ring *ring, end_slot = bgmac_read(bgmac, ring->mmio_base + BGMAC_DMA_RX_STATUS); end_slot &= BGMAC_DMA_RX_STATDPTR; + end_slot -= ring->index_base; + end_slot &= BGMAC_DMA_RX_STATDPTR; end_slot /= sizeof(struct bgmac_dma_desc); ring->end = end_slot; @@ -418,9 +423,6 @@ static int bgmac_dma_alloc(struct bgmac *bgmac) ring = &bgmac->tx_ring[i]; ring->num_slots = BGMAC_TX_RING_SLOTS; ring->mmio_base = ring_base[i]; - if (bgmac_dma_unaligned(bgmac, ring, BGMAC_DMA_RING_TX)) - bgmac_warn(bgmac, "TX on ring 0x%X supports unaligned addressing but this feature is not implemented\n", - ring->mmio_base); /* Alloc ring of descriptors */ size = ring->num_slots * sizeof(struct bgmac_dma_desc); @@ -435,6 +437,13 @@ static int bgmac_dma_alloc(struct bgmac *bgmac) if (ring->dma_base & 0xC0000000) bgmac_warn(bgmac, "DMA address using 0xC0000000 bit(s), it may need translation trick\n"); + ring->unaligned = bgmac_dma_unaligned(bgmac, ring, + BGMAC_DMA_RING_TX); + if (ring->unaligned) + ring->index_base = lower_32_bits(ring->dma_base); + else + ring->index_base = 0; + /* No need to alloc TX slots yet */ } @@ -444,9 +453,6 @@ static int bgmac_dma_alloc(struct bgmac *bgmac) ring = &bgmac->rx_ring[i]; ring->num_slots = BGMAC_RX_RING_SLOTS; ring->mmio_base = ring_base[i]; - if (bgmac_dma_unaligned(bgmac, ring, BGMAC_DMA_RING_RX)) - bgmac_warn(bgmac, "RX on ring 0x%X supports unaligned addressing but this feature is not implemented\n", - ring->mmio_base); /* Alloc ring of descriptors */ size = ring->num_slots * sizeof(struct bgmac_dma_desc); @@ -462,6 +468,13 @@ static int bgmac_dma_alloc(struct bgmac *bgmac) if (ring->dma_base & 0xC0000000) bgmac_warn(bgmac, "DMA address using 0xC0000000 bit(s), it may need translation trick\n"); + ring->unaligned = bgmac_dma_unaligned(bgmac, ring, + BGMAC_DMA_RING_RX); + if (ring->unaligned) + ring->index_base = lower_32_bits(ring->dma_base); + else + ring->index_base = 0; + /* Alloc RX slots */ for (j = 0; j < ring->num_slots; j++) { err = bgmac_dma_rx_skb_for_slot(bgmac, &ring->slots[j]); @@ -489,12 +502,14 @@ static void bgmac_dma_init(struct bgmac *bgmac) for (i = 0; i < BGMAC_MAX_TX_RINGS; i++) { ring = &bgmac->tx_ring[i]; - /* We don't implement unaligned addressing, so enable first */ - bgmac_dma_tx_enable(bgmac, ring); + if (!ring->unaligned) + bgmac_dma_tx_enable(bgmac, ring); bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_TX_RINGLO, lower_32_bits(ring->dma_base)); bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_TX_RINGHI, upper_32_bits(ring->dma_base)); + if (ring->unaligned) + bgmac_dma_tx_enable(bgmac, ring); ring->start = 0; ring->end = 0; /* Points the slot that should *not* be read */ @@ -505,12 +520,14 @@ static void bgmac_dma_init(struct bgmac *bgmac) ring = &bgmac->rx_ring[i]; - /* We don't implement unaligned addressing, so enable first */ - bgmac_dma_rx_enable(bgmac, ring); + if (!ring->unaligned) + bgmac_dma_rx_enable(bgmac, ring); bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_RX_RINGLO, lower_32_bits(ring->dma_base)); bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_RX_RINGHI, upper_32_bits(ring->dma_base)); + if (ring->unaligned) + bgmac_dma_rx_enable(bgmac, ring); for (j = 0, dma_desc = ring->cpu_base; j < ring->num_slots; j++, dma_desc++) { @@ -531,6 +548,7 @@ static void bgmac_dma_init(struct bgmac *bgmac) } bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_RX_INDEX, + ring->index_base + ring->num_slots * sizeof(struct bgmac_dma_desc)); ring->start = 0; diff --git a/drivers/net/ethernet/broadcom/bgmac.h b/drivers/net/ethernet/broadcom/bgmac.h index 12a35cf9bb81..66c8afbdc8c7 100644 --- a/drivers/net/ethernet/broadcom/bgmac.h +++ b/drivers/net/ethernet/broadcom/bgmac.h @@ -384,6 +384,8 @@ struct bgmac_dma_ring { u16 mmio_base; struct bgmac_dma_desc *cpu_base; dma_addr_t dma_base; + u32 index_base; /* Used for unaligned rings only, otherwise 0 */ + bool unaligned; struct bgmac_slot_info slots[BGMAC_RX_RING_SLOTS]; }; From 0d2ede929f61783aebfb9228e4d32a0546ee4d23 Mon Sep 17 00:00:00 2001 From: Ding Zhi Date: Mon, 16 Sep 2013 11:31:15 +0200 Subject: [PATCH 169/350] ip6_tunnels: raddr and laddr are inverted in nl msg IFLA_IPTUN_LOCAL and IFLA_IPTUN_REMOTE were inverted. Introduced by c075b13098b3 (ip6tnl: advertise tunnel param via rtnl). Signed-off-by: Ding Zhi Signed-off-by: Nicolas Dichtel Signed-off-by: David S. Miller --- net/ipv6/ip6_tunnel.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index 61355f7f4da5..2d8f4829575b 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -1656,9 +1656,9 @@ static int ip6_tnl_fill_info(struct sk_buff *skb, const struct net_device *dev) if (nla_put_u32(skb, IFLA_IPTUN_LINK, parm->link) || nla_put(skb, IFLA_IPTUN_LOCAL, sizeof(struct in6_addr), - &parm->raddr) || - nla_put(skb, IFLA_IPTUN_REMOTE, sizeof(struct in6_addr), &parm->laddr) || + nla_put(skb, IFLA_IPTUN_REMOTE, sizeof(struct in6_addr), + &parm->raddr) || nla_put_u8(skb, IFLA_IPTUN_TTL, parm->hop_limit) || nla_put_u8(skb, IFLA_IPTUN_ENCAP_LIMIT, parm->encap_limit) || nla_put_be32(skb, IFLA_IPTUN_FLOWINFO, parm->flowinfo) || From 0092820407901a0b2c4e343e85f96bb7abfcded1 Mon Sep 17 00:00:00 2001 From: Fabio Porcedda Date: Mon, 16 Sep 2013 11:47:50 +0200 Subject: [PATCH 170/350] net: usb: cdc_ether: Use wwan interface for Telit modules Signed-off-by: Fabio Porcedda Cc: # 3.0+ as far back as it applies cleanly Acked-by: Oliver Neukum Signed-off-by: David S. Miller --- drivers/net/usb/cdc_ether.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c index 03ad4dc293aa..98aef3bac7d8 100644 --- a/drivers/net/usb/cdc_ether.c +++ b/drivers/net/usb/cdc_ether.c @@ -725,6 +725,11 @@ static const struct usb_device_id products [] = { .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, .bInterfaceProtocol = USB_CDC_PROTO_NONE, .driver_info = (unsigned long)&wwan_info, +}, { + /* Telit modules */ + USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM, + USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), + .driver_info = (kernel_ulong_t) &wwan_info, }, { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), From 8857ec2871c9ad39deb6800c06907f6795239eb4 Mon Sep 17 00:00:00 2001 From: Fabio Porcedda Date: Mon, 16 Sep 2013 11:47:51 +0200 Subject: [PATCH 171/350] net: usb: cdc_ether: fix checkpatch errors and warnings Signed-off-by: Fabio Porcedda Acked-by: Oliver Neukum Signed-off-by: David S. Miller --- drivers/net/usb/cdc_ether.c | 47 ++++++++++++++++--------------------- 1 file changed, 20 insertions(+), 27 deletions(-) diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c index 98aef3bac7d8..c36b1c3c5b19 100644 --- a/drivers/net/usb/cdc_ether.c +++ b/drivers/net/usb/cdc_ether.c @@ -33,7 +33,7 @@ #include -#if defined(CONFIG_USB_NET_RNDIS_HOST) || defined(CONFIG_USB_NET_RNDIS_HOST_MODULE) +#if IS_ENABLED(CONFIG_USB_NET_RNDIS_HOST) static int is_rndis(struct usb_interface_descriptor *desc) { @@ -69,8 +69,7 @@ static const u8 mbm_guid[16] = { 0xa6, 0x07, 0xc0, 0xff, 0xcb, 0x7e, 0x39, 0x2a, }; -/* - * probes control interface, claims data interface, collects the bulk +/* probes control interface, claims data interface, collects the bulk * endpoints, activates data interface (if needed), maybe sets MTU. * all pure cdc, except for certain firmware workarounds, and knowing * that rndis uses one different rule. @@ -88,7 +87,7 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf) struct usb_cdc_mdlm_desc *desc = NULL; struct usb_cdc_mdlm_detail_desc *detail = NULL; - if (sizeof dev->data < sizeof *info) + if (sizeof(dev->data) < sizeof(*info)) return -EDOM; /* expect strict spec conformance for the descriptors, but @@ -126,10 +125,10 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf) is_activesync(&intf->cur_altsetting->desc) || is_wireless_rndis(&intf->cur_altsetting->desc)); - memset(info, 0, sizeof *info); + memset(info, 0, sizeof(*info)); info->control = intf; while (len > 3) { - if (buf [1] != USB_DT_CS_INTERFACE) + if (buf[1] != USB_DT_CS_INTERFACE) goto next_desc; /* use bDescriptorSubType to identify the CDC descriptors. @@ -139,14 +138,14 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf) * in favor of a complicated OID-based RPC scheme doing what * CDC Ethernet achieves with a simple descriptor. */ - switch (buf [2]) { + switch (buf[2]) { case USB_CDC_HEADER_TYPE: if (info->header) { dev_dbg(&intf->dev, "extra CDC header\n"); goto bad_desc; } info->header = (void *) buf; - if (info->header->bLength != sizeof *info->header) { + if (info->header->bLength != sizeof(*info->header)) { dev_dbg(&intf->dev, "CDC header len %u\n", info->header->bLength); goto bad_desc; @@ -175,7 +174,7 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf) goto bad_desc; } info->u = (void *) buf; - if (info->u->bLength != sizeof *info->u) { + if (info->u->bLength != sizeof(*info->u)) { dev_dbg(&intf->dev, "CDC union len %u\n", info->u->bLength); goto bad_desc; @@ -233,7 +232,7 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf) goto bad_desc; } info->ether = (void *) buf; - if (info->ether->bLength != sizeof *info->ether) { + if (info->ether->bLength != sizeof(*info->ether)) { dev_dbg(&intf->dev, "CDC ether len %u\n", info->ether->bLength); goto bad_desc; @@ -274,8 +273,8 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf) break; } next_desc: - len -= buf [0]; /* bLength */ - buf += buf [0]; + len -= buf[0]; /* bLength */ + buf += buf[0]; } /* Microsoft ActiveSync based and some regular RNDIS devices lack the @@ -379,9 +378,7 @@ void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf) } EXPORT_SYMBOL_GPL(usbnet_cdc_unbind); -/*------------------------------------------------------------------------- - * - * Communications Device Class, Ethernet Control model +/* Communications Device Class, Ethernet Control model * * Takes two interfaces. The DATA interface is inactive till an altsetting * is selected. Configuration data includes class descriptors. There's @@ -389,8 +386,7 @@ EXPORT_SYMBOL_GPL(usbnet_cdc_unbind); * * This should interop with whatever the 2.4 "CDCEther.c" driver * (by Brad Hards) talked with, with more functionality. - * - *-------------------------------------------------------------------------*/ + */ static void dumpspeed(struct usbnet *dev, __le32 *speeds) { @@ -404,7 +400,7 @@ void usbnet_cdc_status(struct usbnet *dev, struct urb *urb) { struct usb_cdc_notification *event; - if (urb->actual_length < sizeof *event) + if (urb->actual_length < sizeof(*event)) return; /* SPEED_CHANGE can get split into two 8-byte packets */ @@ -423,7 +419,7 @@ void usbnet_cdc_status(struct usbnet *dev, struct urb *urb) case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */ netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n", urb->actual_length); - if (urb->actual_length != (sizeof *event + 8)) + if (urb->actual_length != (sizeof(*event) + 8)) set_bit(EVENT_STS_SPLIT, &dev->flags); else dumpspeed(dev, (__le32 *) &event[1]); @@ -469,7 +465,6 @@ EXPORT_SYMBOL_GPL(usbnet_cdc_bind); static const struct driver_info cdc_info = { .description = "CDC Ethernet Device", .flags = FLAG_ETHER | FLAG_POINTTOPOINT, - // .check_connect = cdc_check_connect, .bind = usbnet_cdc_bind, .unbind = usbnet_cdc_unbind, .status = usbnet_cdc_status, @@ -493,9 +488,8 @@ static const struct driver_info wwan_info = { #define DELL_VENDOR_ID 0x413C #define REALTEK_VENDOR_ID 0x0bda -static const struct usb_device_id products [] = { -/* - * BLACKLIST !! +static const struct usb_device_id products[] = { +/* BLACKLIST !! * * First blacklist any products that are egregiously nonconformant * with the CDC Ethernet specs. Minor braindamage we cope with; when @@ -542,7 +536,7 @@ static const struct usb_device_id products [] = { .driver_info = 0, }, { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO - | USB_DEVICE_ID_MATCH_DEVICE, + | USB_DEVICE_ID_MATCH_DEVICE, .idVendor = 0x04DD, .idProduct = 0x8007, /* C-700 */ ZAURUS_MASTER_INTERFACE, @@ -659,8 +653,7 @@ static const struct usb_device_id products [] = { .driver_info = 0, }, -/* - * WHITELIST!!! +/* WHITELIST!!! * * CDC Ether uses two interfaces, not necessarily consecutive. * We match the main interface, ignoring the optional device @@ -749,7 +742,7 @@ static const struct usb_device_id products [] = { .bInterfaceProtocol = 255, .driver_info = (unsigned long)&wwan_info, }, - { }, // END + { }, /* END */ }; MODULE_DEVICE_TABLE(usb, products); From d82a7f54b9daadca8e19dd3ce31e02bf2f7445c9 Mon Sep 17 00:00:00 2001 From: Fabio Porcedda Date: Mon, 16 Sep 2013 11:47:52 +0200 Subject: [PATCH 172/350] net: usb: cdc_ether: use usb.h macros whenever possible Use USB_DEVICE_AND_INTERFACE_INFO and USB_VENDOR_AND_INTERFACE_INFO macros to reduce boilerplate. Signed-off-by: Fabio Porcedda Acked-by: Oliver Neukum Signed-off-by: David S. Miller --- drivers/net/usb/cdc_ether.c | 63 ++++++++++--------------------------- 1 file changed, 17 insertions(+), 46 deletions(-) diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c index c36b1c3c5b19..2023f3ea891e 100644 --- a/drivers/net/usb/cdc_ether.c +++ b/drivers/net/usb/cdc_ether.c @@ -665,58 +665,33 @@ static const struct usb_device_id products[] = { */ { /* ZTE (Vodafone) K3805-Z */ - .match_flags = USB_DEVICE_ID_MATCH_VENDOR - | USB_DEVICE_ID_MATCH_PRODUCT - | USB_DEVICE_ID_MATCH_INT_INFO, - .idVendor = ZTE_VENDOR_ID, - .idProduct = 0x1003, - .bInterfaceClass = USB_CLASS_COMM, - .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, - .bInterfaceProtocol = USB_CDC_PROTO_NONE, + USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM, + USB_CDC_SUBCLASS_ETHERNET, + USB_CDC_PROTO_NONE), .driver_info = (unsigned long)&wwan_info, }, { /* ZTE (Vodafone) K3806-Z */ - .match_flags = USB_DEVICE_ID_MATCH_VENDOR - | USB_DEVICE_ID_MATCH_PRODUCT - | USB_DEVICE_ID_MATCH_INT_INFO, - .idVendor = ZTE_VENDOR_ID, - .idProduct = 0x1015, - .bInterfaceClass = USB_CLASS_COMM, - .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, - .bInterfaceProtocol = USB_CDC_PROTO_NONE, + USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM, + USB_CDC_SUBCLASS_ETHERNET, + USB_CDC_PROTO_NONE), .driver_info = (unsigned long)&wwan_info, }, { /* ZTE (Vodafone) K4510-Z */ - .match_flags = USB_DEVICE_ID_MATCH_VENDOR - | USB_DEVICE_ID_MATCH_PRODUCT - | USB_DEVICE_ID_MATCH_INT_INFO, - .idVendor = ZTE_VENDOR_ID, - .idProduct = 0x1173, - .bInterfaceClass = USB_CLASS_COMM, - .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, - .bInterfaceProtocol = USB_CDC_PROTO_NONE, + USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM, + USB_CDC_SUBCLASS_ETHERNET, + USB_CDC_PROTO_NONE), .driver_info = (unsigned long)&wwan_info, }, { /* ZTE (Vodafone) K3770-Z */ - .match_flags = USB_DEVICE_ID_MATCH_VENDOR - | USB_DEVICE_ID_MATCH_PRODUCT - | USB_DEVICE_ID_MATCH_INT_INFO, - .idVendor = ZTE_VENDOR_ID, - .idProduct = 0x1177, - .bInterfaceClass = USB_CLASS_COMM, - .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, - .bInterfaceProtocol = USB_CDC_PROTO_NONE, + USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM, + USB_CDC_SUBCLASS_ETHERNET, + USB_CDC_PROTO_NONE), .driver_info = (unsigned long)&wwan_info, }, { /* ZTE (Vodafone) K3772-Z */ - .match_flags = USB_DEVICE_ID_MATCH_VENDOR - | USB_DEVICE_ID_MATCH_PRODUCT - | USB_DEVICE_ID_MATCH_INT_INFO, - .idVendor = ZTE_VENDOR_ID, - .idProduct = 0x1181, - .bInterfaceClass = USB_CLASS_COMM, - .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, - .bInterfaceProtocol = USB_CDC_PROTO_NONE, + USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM, + USB_CDC_SUBCLASS_ETHERNET, + USB_CDC_PROTO_NONE), .driver_info = (unsigned long)&wwan_info, }, { /* Telit modules */ @@ -734,12 +709,8 @@ static const struct usb_device_id products[] = { }, { /* Various Huawei modems with a network port like the UMG1831 */ - .match_flags = USB_DEVICE_ID_MATCH_VENDOR - | USB_DEVICE_ID_MATCH_INT_INFO, - .idVendor = HUAWEI_VENDOR_ID, - .bInterfaceClass = USB_CLASS_COMM, - .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, - .bInterfaceProtocol = 255, + USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM, + USB_CDC_SUBCLASS_ETHERNET, 255), .driver_info = (unsigned long)&wwan_info, }, { }, /* END */ From 3f96a532113131d5a65ac9e00fc83cfa31b0295f Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Mon, 16 Sep 2013 12:36:02 +0200 Subject: [PATCH 173/350] net: sctp: rfc4443: do not report ICMP redirects to user space Adapt the same behaviour for SCTP as present in TCP for ICMP redirect messages. For IPv6, RFC4443, section 2.4. says: ... (e) An ICMPv6 error message MUST NOT be originated as a result of receiving the following: ... (e.2) An ICMPv6 redirect message [IPv6-DISC]. ... Therefore, do not report an error to user space, just invoke dst's redirect callback and leave, same for IPv4 as done in TCP as well. The implication w/o having this patch could be that the reception of such packets would generate a poll notification and in worst case it could even tear down the whole connection. Therefore, stop updating sk_err on redirects. Reported-by: Duan Jiong Reported-by: Hannes Frederic Sowa Suggested-by: Vlad Yasevich Signed-off-by: Daniel Borkmann Signed-off-by: David S. Miller --- net/sctp/input.c | 3 +-- net/sctp/ipv6.c | 2 +- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/net/sctp/input.c b/net/sctp/input.c index 5f2068679f83..98b69bbecdd9 100644 --- a/net/sctp/input.c +++ b/net/sctp/input.c @@ -634,8 +634,7 @@ void sctp_v4_err(struct sk_buff *skb, __u32 info) break; case ICMP_REDIRECT: sctp_icmp_redirect(sk, transport, skb); - err = 0; - break; + /* Fall through to out_unlock. */ default: goto out_unlock; } diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c index 4f52e2ce263d..e7b2d4fe2b6a 100644 --- a/net/sctp/ipv6.c +++ b/net/sctp/ipv6.c @@ -183,7 +183,7 @@ static void sctp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt, break; case NDISC_REDIRECT: sctp_icmp_redirect(sk, transport, skb); - break; + goto out_unlock; default: break; } From 7c37b617b4e539269b53c625c8d814bf4590a695 Mon Sep 17 00:00:00 2001 From: Gwenhael Goavec-Merou Date: Fri, 16 Aug 2013 08:45:35 +0200 Subject: [PATCH 174/350] ARM: imx27.dtsi: fix CSPI PER clock id CSPI PER clock is per2clk (per2_gate id 60) instead of cspiX_ipg_gate. Signed-off-by: Gwenhael Goavec-Merou Acked-by: Sascha Hauer Signed-off-by: Shawn Guo --- arch/arm/boot/dts/imx27.dtsi | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/boot/dts/imx27.dtsi b/arch/arm/boot/dts/imx27.dtsi index c037c223619a..b7a1c6d950b9 100644 --- a/arch/arm/boot/dts/imx27.dtsi +++ b/arch/arm/boot/dts/imx27.dtsi @@ -187,7 +187,7 @@ compatible = "fsl,imx27-cspi"; reg = <0x1000e000 0x1000>; interrupts = <16>; - clocks = <&clks 53>, <&clks 53>; + clocks = <&clks 53>, <&clks 60>; clock-names = "ipg", "per"; status = "disabled"; }; @@ -198,7 +198,7 @@ compatible = "fsl,imx27-cspi"; reg = <0x1000f000 0x1000>; interrupts = <15>; - clocks = <&clks 52>, <&clks 52>; + clocks = <&clks 52>, <&clks 60>; clock-names = "ipg", "per"; status = "disabled"; }; @@ -309,7 +309,7 @@ compatible = "fsl,imx27-cspi"; reg = <0x10017000 0x1000>; interrupts = <6>; - clocks = <&clks 51>, <&clks 51>; + clocks = <&clks 51>, <&clks 60>; clock-names = "ipg", "per"; status = "disabled"; }; From bdb1b5f2ddd8a32fd0cd78bb68fc76c30266b27c Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Wed, 4 Sep 2013 20:49:04 +0800 Subject: [PATCH 175/350] ARM: imx: initialize clk_init_data.flags for clk-fixup-mux The clk_init_data.flags of clk-fixup-mux is left there without initialization. It may hold some random data and cause clock framework interpret the clock in an unexpected way. At least on imx6sl, the following division by zero error with sched_clock is seen because of it. Division by zero in kernel. CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.11.0-rc3+ #19 Backtrace: [<80011af0>] (dump_backtrace+0x0/0x10c) from [<80011c90>] (show_stack+0x18/0x1c) r6:3b9aca00 r5:00000020 r4:00000000 r3:00000000 [<80011c78>] (show_stack+0x0/0x1c) from [<8055e02c>] (dump_stack+0x78/0x94) [<8055dfb4>] (dump_stack+0x0/0x94) from [<80011924>] (__div0+0x18/0x20) r4:00000000 r3:00000000 [<8001190c>] (__div0+0x0/0x20) from [<8026c408>] (Ldiv0_64+0x8/0x18) [<8006330c>] (clocks_calc_mult_shift+0x0/0xf8) from [<8072f604>] (setup_sched_clock+0x88/0x1f0) [<8072f57c>] (setup_sched_clock+0x0/0x1f0) from [<8071ad48>] (mxc_timer_init+0xe8/0x17c) [<8071ac60>] (mxc_timer_init+0x0/0x17c) from [<807290b0>] (imx6sl_clocks_init+0x1db8/0x1dc0) r8:807a9ca4 r7:00000000 r6:80777564 r5:8100c1f4 r4:c0820000 [<807272f8>] (imx6sl_clocks_init+0x0/0x1dc0) from [<807420ac>] (of_clk_init+0x40/0x6c) [<8074206c>] (of_clk_init+0x0/0x6c) from [<807290cc>] (imx6sl_timer_init+0x14/0x18) r5:807a8e80 r4:ffffffff [<807290b8>] (imx6sl_timer_init+0x0/0x18) from [<80716e1c>] (time_init+0x24/0x34) [<80716df8>] (time_init+0x0/0x34) from [<80713738>] (start_kernel+0x1b0/0x310) [<80713588>] (start_kernel+0x0/0x310) from [<80008074>] (0x80008074) r7:80770b08 r6:80754cd4 r5:8076c8c4 r4:10c53c7d sched_clock: 32 bits at 0 Hz, resolution 0ns, wraps every 0ms Fix the bug by initializing init.flags as zero. Signed-off-by: Shawn Guo --- arch/arm/mach-imx/clk-fixup-mux.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-imx/clk-fixup-mux.c b/arch/arm/mach-imx/clk-fixup-mux.c index deb4b8093b30..0d40b35c557c 100644 --- a/arch/arm/mach-imx/clk-fixup-mux.c +++ b/arch/arm/mach-imx/clk-fixup-mux.c @@ -90,6 +90,7 @@ struct clk *imx_clk_fixup_mux(const char *name, void __iomem *reg, init.ops = &clk_fixup_mux_ops; init.parent_names = parents; init.num_parents = num_parents; + init.flags = 0; fixup_mux->mux.reg = reg; fixup_mux->mux.shift = shift; From 5d5248a6d110d9ec58c1c1525d338e28357a25c2 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Thu, 5 Sep 2013 16:02:57 -0300 Subject: [PATCH 176/350] ARM: mach-imx: clk-imx51-imx53: Fix 'spdif1_pred' clock registration Since commit beb2d1c1ba (ARM i.MX5: Add S/PDIF clocks), the following clock error appears on mx51: TrustZone Interrupt Controller (TZIC) initialized i.MX51 clk 180: register failed with -17 i.MX5 clk 180: register failed with -17 sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956ms CPU identified as i.MX51, silicon rev 3.0 ... Clock 180 corresponds to 'spdif1_podf' and this clock is getting registered twice. Fix it, by properly registering the 'spdif1_pred' clock, which should not reference 'spdif1_podf'. Signed-off-by: Fabio Estevam Signed-off-by: Shawn Guo --- arch/arm/mach-imx/clk-imx51-imx53.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-imx/clk-imx51-imx53.c b/arch/arm/mach-imx/clk-imx51-imx53.c index 1a56a3319997..d9094b9a5185 100644 --- a/arch/arm/mach-imx/clk-imx51-imx53.c +++ b/arch/arm/mach-imx/clk-imx51-imx53.c @@ -397,7 +397,7 @@ int __init mx51_clocks_init(unsigned long rate_ckil, unsigned long rate_osc, mx51_spdif_xtal_sel, ARRAY_SIZE(mx51_spdif_xtal_sel)); clk[spdif1_sel] = imx_clk_mux("spdif1_sel", MXC_CCM_CSCMR2, 2, 2, spdif_sel, ARRAY_SIZE(spdif_sel)); - clk[spdif1_pred] = imx_clk_divider("spdif1_podf", "spdif1_sel", MXC_CCM_CDCDR, 16, 3); + clk[spdif1_pred] = imx_clk_divider("spdif1_pred", "spdif1_sel", MXC_CCM_CDCDR, 16, 3); clk[spdif1_podf] = imx_clk_divider("spdif1_podf", "spdif1_pred", MXC_CCM_CDCDR, 9, 6); clk[spdif1_com_sel] = imx_clk_mux("spdif1_com_sel", MXC_CCM_CSCMR2, 5, 1, mx51_spdif1_com_sel, ARRAY_SIZE(mx51_spdif1_com_sel)); From 6a030ee36a3c3ed5f08a330e88060a6b71e6c7e3 Mon Sep 17 00:00:00 2001 From: "Arnaud Patard (Rtp)" Date: Sat, 7 Sep 2013 15:23:14 +0200 Subject: [PATCH 177/350] ARM: imx51.dtsi: fix PATA device clock Commit 718a350 (ARM: i.MX51: Add PATA support) adds pata support to the imx51.dtsi file and is using clock 161. The problem is that the right clock is 172, according to commit 5d530bb (ARM: i.MX5: Add PATA and SRTC clocks). Using the clock 172 makes things work again (and kills a nasty system freeze). Tested-by: Steev Klimaszewski Signed-off-by: Arnaud Patard Signed-off-by: Shawn Guo --- arch/arm/boot/dts/imx51.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/imx51.dtsi b/arch/arm/boot/dts/imx51.dtsi index a85abb424c34..54cee6517902 100644 --- a/arch/arm/boot/dts/imx51.dtsi +++ b/arch/arm/boot/dts/imx51.dtsi @@ -474,7 +474,7 @@ compatible = "fsl,imx51-pata", "fsl,imx27-pata"; reg = <0x83fe0000 0x4000>; interrupts = <70>; - clocks = <&clks 161>; + clocks = <&clks 172>; status = "disabled"; }; From 9779f0e1d75c99c79000ed9e303287fc23da3e9e Mon Sep 17 00:00:00 2001 From: Jason Liu Date: Mon, 16 Sep 2013 09:29:03 +0800 Subject: [PATCH 178/350] ARM: imx: i.mx6d/q: disable the double linefill feature of PL310 The L2 cache controller(PL310) version on the i.MX6D/Q is r3p1-50rel0 The L2 cache controller(PL310) version on the i.MX6DL/SOLO/SL is r3p2 But according to ARM PL310 errata: 752271 ID: 752271: Double linefill feature can cause data corruption Fault Status: Present in: r3p0, r3p1, r3p1-50rel0. Fixed in r3p2 Workaround: The only workaround to this erratum is to disable the double linefill feature. This is the default behavior. without this patch, you will meet the following error when run the memtester application at: http://pyropus.ca/software/memtester/ FAILURE: 0x00100000 != 0x00200000 at offset 0x01365664. FAILURE: 0x00100000 != 0x00200000 at offset 0x01365668. FAILURE: 0x00100000 != 0x00200000 at offset 0x0136566c. FAILURE: 0x00100000 != 0x00200000 at offset 0x01365670. FAILURE: 0x00100000 != 0x00200000 at offset 0x01365674. FAILURE: 0x00100000 != 0x00200000 at offset 0x01365678. Signed-off-by: Jason Liu Signed-off-by: Shawn Guo --- arch/arm/mach-imx/system.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm/mach-imx/system.c b/arch/arm/mach-imx/system.c index 64ff37ea72b1..80c177c36c5f 100644 --- a/arch/arm/mach-imx/system.c +++ b/arch/arm/mach-imx/system.c @@ -117,6 +117,17 @@ void __init imx_init_l2cache(void) /* Configure the L2 PREFETCH and POWER registers */ val = readl_relaxed(l2x0_base + L2X0_PREFETCH_CTRL); val |= 0x70800000; + /* + * The L2 cache controller(PL310) version on the i.MX6D/Q is r3p1-50rel0 + * The L2 cache controller(PL310) version on the i.MX6DL/SOLO/SL is r3p2 + * But according to ARM PL310 errata: 752271 + * ID: 752271: Double linefill feature can cause data corruption + * Fault Status: Present in: r3p0, r3p1, r3p1-50rel0. Fixed in r3p2 + * Workaround: The only workaround to this erratum is to disable the + * double linefill feature. This is the default behavior. + */ + if (cpu_is_imx6q()) + val &= ~(1 << 30 | 1 << 23); writel_relaxed(val, l2x0_base + L2X0_PREFETCH_CTRL); val = L2X0_DYNAMIC_CLK_GATING_EN | L2X0_STNDBY_MODE_EN; writel_relaxed(val, l2x0_base + L2X0_POWER_CTRL); From 538bcbe251d621aa19c46babafd01ede8fb6ddde Mon Sep 17 00:00:00 2001 From: Huang Shijie Date: Mon, 16 Sep 2013 17:02:45 +0800 Subject: [PATCH 179/350] ARM: dts: imx6q: fix the wrong offset of the Pad Mux register The patch "0b7a76a ARM: dts: imx6q{dl}: add DTE pads for uart" adds the DTE pads for uart. For PAD_EIM_D29, the offset of the Pad Mux register should be 0x0c8, not 0x0c4. This patch fixes it. Signed-off-by: Huang Shijie Signed-off-by: Shawn Guo --- arch/arm/boot/dts/imx6q-pinfunc.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/imx6q-pinfunc.h b/arch/arm/boot/dts/imx6q-pinfunc.h index c0e38a45e4bb..9bbe82bdee41 100644 --- a/arch/arm/boot/dts/imx6q-pinfunc.h +++ b/arch/arm/boot/dts/imx6q-pinfunc.h @@ -207,8 +207,8 @@ #define MX6QDL_PAD_EIM_D29__ECSPI4_SS0 0x0c8 0x3dc 0x824 0x2 0x1 #define MX6QDL_PAD_EIM_D29__UART2_RTS_B 0x0c8 0x3dc 0x924 0x4 0x1 #define MX6QDL_PAD_EIM_D29__UART2_CTS_B 0x0c8 0x3dc 0x000 0x4 0x0 -#define MX6QDL_PAD_EIM_D29__UART2_DTE_RTS_B 0x0c4 0x3dc 0x000 0x4 0x0 -#define MX6QDL_PAD_EIM_D29__UART2_DTE_CTS_B 0x0c4 0x3dc 0x924 0x4 0x1 +#define MX6QDL_PAD_EIM_D29__UART2_DTE_RTS_B 0x0c8 0x3dc 0x000 0x4 0x0 +#define MX6QDL_PAD_EIM_D29__UART2_DTE_CTS_B 0x0c8 0x3dc 0x924 0x4 0x1 #define MX6QDL_PAD_EIM_D29__GPIO3_IO29 0x0c8 0x3dc 0x000 0x5 0x0 #define MX6QDL_PAD_EIM_D29__IPU2_CSI1_VSYNC 0x0c8 0x3dc 0x8e4 0x6 0x0 #define MX6QDL_PAD_EIM_D29__IPU1_DI0_PIN14 0x0c8 0x3dc 0x000 0x7 0x0 From ac9fde2474d04bd6574a037482e3de02b488a6c6 Mon Sep 17 00:00:00 2001 From: Qin Chuanyu Date: Fri, 7 Jun 2013 21:50:16 +0800 Subject: [PATCH 180/350] vhost: wake up worker outside spin_lock the wake_up_process func is included by spin_lock/unlock in vhost_work_queue, but it could be done outside the spin_lock. I have test it with kernel 3.0.27 and guest suse11-sp2 using iperf, the num as below. original modified thread_num tp(Gbps) vhost(%) | tp(Gbps) vhost(%) 1 9.59 28.82 | 9.59 27.49 8 9.61 32.92 | 9.62 26.77 64 9.58 46.48 | 9.55 38.99 256 9.6 63.7 | 9.6 52.59 Signed-off-by: Chuanyu Qin Signed-off-by: Michael S. Tsirkin --- drivers/vhost/vhost.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 9a9502a4aa50..69068e0d8f31 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -161,9 +161,11 @@ void vhost_work_queue(struct vhost_dev *dev, struct vhost_work *work) if (list_empty(&work->node)) { list_add_tail(&work->node, &dev->work_list); work->queue_seq++; + spin_unlock_irqrestore(&dev->work_lock, flags); wake_up_process(dev->worker); + } else { + spin_unlock_irqrestore(&dev->work_lock, flags); } - spin_unlock_irqrestore(&dev->work_lock, flags); } EXPORT_SYMBOL_GPL(vhost_work_queue); From da029d0c6757972d19d88b0289ded58f4f704236 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Thu, 5 Sep 2013 21:43:59 +0300 Subject: [PATCH 181/350] staging: octeon-ethernet: make dropped packets to consume NAPI budget We should count also dropped packets, otherwise the NAPI handler may end up running too long. Signed-off-by: Aaro Koskinen Cc: Greg Kroah-Hartman Cc: devel@driverdev.osuosl.org Cc: linux-mips@linux-mips.org Cc: David Daney Cc: Jason A. Donenfeld Cc: richard@nod.at Patchwork: https://patchwork.linux-mips.org/patch/5809/ Signed-off-by: Ralf Baechle --- drivers/staging/octeon/ethernet-rx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c index 34afc16bc493..10e54165d89c 100644 --- a/drivers/staging/octeon/ethernet-rx.c +++ b/drivers/staging/octeon/ethernet-rx.c @@ -303,6 +303,7 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget) if (backlog > budget * cores_in_use && napi != NULL) cvm_oct_enable_one_cpu(); } + rx_count++; skb_in_hw = USE_SKBUFFS_IN_HW && work->word2.s.bufs == 1; if (likely(skb_in_hw)) { @@ -429,7 +430,6 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget) #endif } netif_receive_skb(skb); - rx_count++; } else { /* Drop any packet received for a device that isn't up */ /* From a5de43c1e292b26d2784162871515973d514b635 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Thu, 5 Sep 2013 21:44:00 +0300 Subject: [PATCH 182/350] staging: octeon-ethernet: remove skb alloc failure warnings Remove skb allocation failure warnings. They will trigger a page allocation warning already. Also, one of the warnings was not ratelimited, causing the box to lock up under heavy traffic & low memory. Signed-off-by: Aaro Koskinen Acked-by: David Daney Cc: Greg Kroah-Hartman Cc: devel@driverdev.osuosl.org Cc: linux-mips@linux-mips.org Cc: Jason A. Donenfeld Cc: richard@nod.at Cc: Aaro Koskinen Patchwork: https://patchwork.linux-mips.org/patch/5811/ Signed-off-by: Ralf Baechle --- drivers/staging/octeon/ethernet-mem.c | 7 +------ drivers/staging/octeon/ethernet-rx.c | 3 --- 2 files changed, 1 insertion(+), 9 deletions(-) diff --git a/drivers/staging/octeon/ethernet-mem.c b/drivers/staging/octeon/ethernet-mem.c index 78b6cb743769..199059d64c9b 100644 --- a/drivers/staging/octeon/ethernet-mem.c +++ b/drivers/staging/octeon/ethernet-mem.c @@ -48,13 +48,8 @@ static int cvm_oct_fill_hw_skbuff(int pool, int size, int elements) while (freed) { struct sk_buff *skb = dev_alloc_skb(size + 256); - if (unlikely(skb == NULL)) { - pr_warning - ("Failed to allocate skb for hardware pool %d\n", - pool); + if (unlikely(skb == NULL)) break; - } - skb_reserve(skb, 256 - (((unsigned long)skb->data) & 0x7f)); *(struct sk_buff **)(skb->data - sizeof(void *)) = skb; cvmx_fpa_free(skb->data, pool, DONT_WRITEBACK(size / 128)); diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c index 10e54165d89c..e14a1bb04361 100644 --- a/drivers/staging/octeon/ethernet-rx.c +++ b/drivers/staging/octeon/ethernet-rx.c @@ -337,9 +337,6 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget) */ skb = dev_alloc_skb(work->len); if (!skb) { - printk_ratelimited("Port %d failed to allocate " - "skbuff, packet dropped\n", - work->ipprt); cvm_oct_free_work(work); continue; } From 7cc4fa1e5121b524dad4d6a484ccdbc1be97767c Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Thu, 5 Sep 2013 21:44:01 +0300 Subject: [PATCH 183/350] staging: octeon-ethernet: rgmii: enable interrupts that we can handle Enable only those interrupts that we can handle & acknowledge in the interrupt handler. At least on EdgeRouter Lite, the hardware may occasionally interrupt with some error condition when the physical link status changes frequently. Since the interrupt condition is not acked properly, this leads to the following warning and the IRQ gets disabled completely: [ 41.324700] eth0: Link down [ 44.324721] eth0: 1000 Mbps Full duplex, port 0, queue 0 [ 44.885590] irq 117: nobody cared (try booting with the "irqpoll" option) [ 44.892397] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.11.0-rc5-edge-los.git-27d042f-dirty-00950-gaa42f2d-dirty #8 [ 44.902825] Stack : ffffffff815c0000 0000000000000004 0000000000000003 0000000000000000 ffffffff81fd0000 ffffffff815c0000 0000000000000004 ffffffff8118530c ffffffff815c0000 ffffffff811858d8 0000000000000000 0000000000000000 ffffffff81fd0000 ffffffff81fc0000 ffffffff8152f3a0 ffffffff815b7bf7 ffffffff81fc6688 ffffffff815b8060 0000000000000000 0000000000000000 0000000000000000 ffffffff815346c8 ffffffff815346b0 ffffffff814a6a18 ffffffff8158b848 ffffffff81145614 ffffffff81593800 ffffffff81187174 ffffffff815b7d00 ffffffff8158b760 0000000000000000 ffffffff814a9184 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ffffffff811203b8 0000000000000000 0000000000000000 ... [ 44.968408] Call Trace: [ 44.970873] [] show_stack+0x68/0x80 [ 44.975937] [] dump_stack+0x78/0xb8 [ 44.980999] [] __report_bad_irq+0x44/0x108 [ 44.986662] [] note_interrupt+0x248/0x2a0 [ 44.992240] [] handle_irq_event_percpu+0x144/0x200 [ 44.998598] [] handle_irq_event+0x54/0x90 [ 45.004176] [] handle_level_irq+0xd0/0x148 [ 45.009839] [] generic_handle_irq+0x34/0x50 [ 45.015589] [] do_IRQ+0x18/0x30 [ 45.020301] [] plat_irq_dispatch+0x74/0xb8 [ 45.025958] [ 45.027451] handlers: [ 45.029731] [] cvm_oct_rgmii_rml_interrupt [ 45.035397] Disabling IRQ #117 [ 45.038742] Port 0 receive error code 13, packet dropped [ 46.324719] eth0: Link down [ 48.324733] eth0: 1000 Mbps Full duplex, port 0, queue 0 Reported-by: "Jason A. Donenfeld" Signed-off-by: Aaro Koskinen Acked-by: David Daney Cc: Greg Kroah-Hartman Cc: devel@driverdev.osuosl.org Cc: linux-mips@linux-mips.org Cc: Jason A. Donenfeld Cc: richard@nod.at Patchwork: https://patchwork.linux-mips.org/patch/5810/ Signed-off-by: Ralf Baechle --- drivers/staging/octeon/ethernet-rgmii.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/staging/octeon/ethernet-rgmii.c b/drivers/staging/octeon/ethernet-rgmii.c index d8f5f694ec35..ea53af30dfa7 100644 --- a/drivers/staging/octeon/ethernet-rgmii.c +++ b/drivers/staging/octeon/ethernet-rgmii.c @@ -373,9 +373,7 @@ int cvm_oct_rgmii_init(struct net_device *dev) * Enable interrupts on inband status changes * for this port. */ - gmx_rx_int_en.u64 = - cvmx_read_csr(CVMX_GMXX_RXX_INT_EN - (index, interface)); + gmx_rx_int_en.u64 = 0; gmx_rx_int_en.s.phy_dupx = 1; gmx_rx_int_en.s.phy_link = 1; gmx_rx_int_en.s.phy_spd = 1; From 3261107ebfd8f6bba57cfcdb89385779fd149a00 Mon Sep 17 00:00:00 2001 From: Bruce Rogers Date: Mon, 9 Sep 2013 09:40:20 -0600 Subject: [PATCH 184/350] KVM: x86 emulator: emulate RETF imm Opcode CA This gets used by a DOS based NetWare guest. Signed-off-by: Bruce Rogers Reviewed-by: Gleb Natapov Signed-off-by: Paolo Bonzini --- arch/x86/kvm/emulate.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 2bc1e81045b0..ddc3f3d2afdb 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -2025,6 +2025,17 @@ static int em_ret_far(struct x86_emulate_ctxt *ctxt) return rc; } +static int em_ret_far_imm(struct x86_emulate_ctxt *ctxt) +{ + int rc; + + rc = em_ret_far(ctxt); + if (rc != X86EMUL_CONTINUE) + return rc; + rsp_increment(ctxt, ctxt->src.val); + return X86EMUL_CONTINUE; +} + static int em_cmpxchg(struct x86_emulate_ctxt *ctxt) { /* Save real source value, then compare EAX against destination. */ @@ -3763,7 +3774,8 @@ static const struct opcode opcode_table[256] = { G(ByteOp, group11), G(0, group11), /* 0xC8 - 0xCF */ I(Stack | SrcImmU16 | Src2ImmByte, em_enter), I(Stack, em_leave), - N, I(ImplicitOps | Stack, em_ret_far), + I(ImplicitOps | Stack | SrcImmU16, em_ret_far_imm), + I(ImplicitOps | Stack, em_ret_far), D(ImplicitOps), DI(SrcImmByte, intn), D(ImplicitOps | No64), II(ImplicitOps, em_iret, iret), /* 0xD0 - 0xD7 */ From ba6a3541545542721ce821d1e7e5ce35752e6fdf Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Mon, 9 Sep 2013 13:52:33 +0200 Subject: [PATCH 185/350] KVM: mmu: allow page tables to be in read-only slots Page tables in a read-only memory slot will currently cause a triple fault because the page walker uses gfn_to_hva and it fails on such a slot. OVMF uses such a page table; however, real hardware seems to be fine with that as long as the accessed/dirty bits are set. Save whether the slot is readonly, and later check it when updating the accessed and dirty bits. Reviewed-by: Xiao Guangrong Reviewed-by: Gleb Natapov Signed-off-by: Paolo Bonzini --- arch/x86/kvm/paging_tmpl.h | 20 +++++++++++++++++++- include/linux/kvm_host.h | 1 + virt/kvm/kvm_main.c | 14 +++++++++----- 3 files changed, 29 insertions(+), 6 deletions(-) diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h index 043330159179..ad75d77999d0 100644 --- a/arch/x86/kvm/paging_tmpl.h +++ b/arch/x86/kvm/paging_tmpl.h @@ -99,6 +99,7 @@ struct guest_walker { pt_element_t prefetch_ptes[PTE_PREFETCH_NUM]; gpa_t pte_gpa[PT_MAX_FULL_LEVELS]; pt_element_t __user *ptep_user[PT_MAX_FULL_LEVELS]; + bool pte_writable[PT_MAX_FULL_LEVELS]; unsigned pt_access; unsigned pte_access; gfn_t gfn; @@ -235,6 +236,22 @@ static int FNAME(update_accessed_dirty_bits)(struct kvm_vcpu *vcpu, if (pte == orig_pte) continue; + /* + * If the slot is read-only, simply do not process the accessed + * and dirty bits. This is the correct thing to do if the slot + * is ROM, and page tables in read-as-ROM/write-as-MMIO slots + * are only supported if the accessed and dirty bits are already + * set in the ROM (so that MMIO writes are never needed). + * + * Note that NPT does not allow this at all and faults, since + * it always wants nested page table entries for the guest + * page tables to be writable. And EPT works but will simply + * overwrite the read-only memory to set the accessed and dirty + * bits. + */ + if (unlikely(!walker->pte_writable[level - 1])) + continue; + ret = FNAME(cmpxchg_gpte)(vcpu, mmu, ptep_user, index, orig_pte, pte); if (ret) return ret; @@ -309,7 +326,8 @@ retry_walk: goto error; real_gfn = gpa_to_gfn(real_gfn); - host_addr = gfn_to_hva(vcpu->kvm, real_gfn); + host_addr = gfn_to_hva_prot(vcpu->kvm, real_gfn, + &walker->pte_writable[walker->level - 1]); if (unlikely(kvm_is_error_hva(host_addr))) goto error; diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index ca645a01d37a..0fbbc7aa02cb 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -533,6 +533,7 @@ int gfn_to_page_many_atomic(struct kvm *kvm, gfn_t gfn, struct page **pages, struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn); unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn); +unsigned long gfn_to_hva_prot(struct kvm *kvm, gfn_t gfn, bool *writable); unsigned long gfn_to_hva_memslot(struct kvm_memory_slot *slot, gfn_t gfn); void kvm_release_page_clean(struct page *page); void kvm_release_page_dirty(struct page *page); diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index bf040c4e02b3..979bff485fb0 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1058,11 +1058,15 @@ unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn) EXPORT_SYMBOL_GPL(gfn_to_hva); /* - * The hva returned by this function is only allowed to be read. - * It should pair with kvm_read_hva() or kvm_read_hva_atomic(). + * If writable is set to false, the hva returned by this function is only + * allowed to be read. */ -static unsigned long gfn_to_hva_read(struct kvm *kvm, gfn_t gfn) +unsigned long gfn_to_hva_prot(struct kvm *kvm, gfn_t gfn, bool *writable) { + struct kvm_memory_slot *slot = gfn_to_memslot(kvm, gfn); + if (writable) + *writable = !memslot_is_readonly(slot); + return __gfn_to_hva_many(gfn_to_memslot(kvm, gfn), gfn, NULL, false); } @@ -1430,7 +1434,7 @@ int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset, int r; unsigned long addr; - addr = gfn_to_hva_read(kvm, gfn); + addr = gfn_to_hva_prot(kvm, gfn, NULL); if (kvm_is_error_hva(addr)) return -EFAULT; r = kvm_read_hva(data, (void __user *)addr + offset, len); @@ -1468,7 +1472,7 @@ int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data, gfn_t gfn = gpa >> PAGE_SHIFT; int offset = offset_in_page(gpa); - addr = gfn_to_hva_read(kvm, gfn); + addr = gfn_to_hva_prot(kvm, gfn, NULL); if (kvm_is_error_hva(addr)) return -EFAULT; pagefault_disable(); From 72f857950f6f19cba42a9ded078bbc99f10aa667 Mon Sep 17 00:00:00 2001 From: Gleb Natapov Date: Mon, 2 Sep 2013 15:25:28 +0300 Subject: [PATCH 186/350] KVM: nEPT: reset PDPTR register cache on nested vmentry emulation After nested vmentry stale cache can be used to reload L2 PDPTR pointers which will cause L2 guest to fail. Fix it by invalidating cache on nested vmentry emulation. https://bugzilla.kernel.org/show_bug.cgi?id=60830 Signed-off-by: Gleb Natapov Signed-off-by: Paolo Bonzini --- arch/x86/kvm/vmx.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 1f1da43ff2a2..48735936860c 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -7766,6 +7766,10 @@ static void prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12) vmcs_write64(GUEST_PDPTR1, vmcs12->guest_pdptr1); vmcs_write64(GUEST_PDPTR2, vmcs12->guest_pdptr2); vmcs_write64(GUEST_PDPTR3, vmcs12->guest_pdptr3); + __clear_bit(VCPU_EXREG_PDPTR, + (unsigned long *)&vcpu->arch.regs_avail); + __clear_bit(VCPU_EXREG_PDPTR, + (unsigned long *)&vcpu->arch.regs_dirty); } kvm_register_write(vcpu, VCPU_REGS_RSP, vmcs12->guest_rsp); From 28b441e24088081c1e213139d1303b451a34a4f4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= Date: Wed, 4 Sep 2013 22:32:23 +0200 Subject: [PATCH 187/350] kvm: free resources after canceling async_pf MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When we cancel 'async_pf_execute()', we should behave as if the work was never scheduled in 'kvm_setup_async_pf()'. Fixes a bug when we can't unload module because the vm wasn't destroyed. Signed-off-by: Radim Krčmář Reviewed-by: Paolo Bonzini Reviewed-by: Gleb Natapov Signed-off-by: Paolo Bonzini --- virt/kvm/async_pf.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c index ea475cd03511..8a39dda7a325 100644 --- a/virt/kvm/async_pf.c +++ b/virt/kvm/async_pf.c @@ -101,8 +101,11 @@ void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu) typeof(*work), queue); cancel_work_sync(&work->work); list_del(&work->queue); - if (!work->done) /* work was canceled */ + if (!work->done) { /* work was canceled */ + mmdrop(work->mm); + kvm_put_kvm(vcpu->kvm); /* == work->vcpu->kvm */ kmem_cache_free(async_pf_cache, work); + } } spin_lock(&vcpu->async_pf.lock); From 0a0d80eb39aa465b7bdf6f7754d0ba687eb3d2a7 Mon Sep 17 00:00:00 2001 From: Gao feng Date: Tue, 17 Sep 2013 13:03:47 +0200 Subject: [PATCH 188/350] netfilter: nfnetlink_queue: use network skb for sequence adjustment Instead of the netlink skb. Signed-off-by: Gao feng Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nfnetlink_queue_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/netfilter/nfnetlink_queue_core.c b/net/netfilter/nfnetlink_queue_core.c index 95a98c8c1da6..ae2e5c11d01a 100644 --- a/net/netfilter/nfnetlink_queue_core.c +++ b/net/netfilter/nfnetlink_queue_core.c @@ -1009,7 +1009,7 @@ nfqnl_recv_verdict(struct sock *ctnl, struct sk_buff *skb, verdict = NF_DROP; if (ct) - nfqnl_ct_seq_adjust(skb, ct, ctinfo, diff); + nfqnl_ct_seq_adjust(entry->skb, ct, ctinfo, diff); } if (nfqa[NFQA_MARK]) From c5f66596313734cd7e95cc748d643d3b9ba2ca81 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Tue, 17 Sep 2013 13:58:12 +0200 Subject: [PATCH 189/350] MIPS: Provide nice way to access boot CPU's data. boot_cpu_data is used the same as current_cpu_data but returns the CPU data for CPU 0. This means it doesn't have to use smp_processor_id() thus no need to disable preemption. Signed-off-by: Ralf Baechle --- arch/mips/include/asm/cpu-info.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/mips/include/asm/cpu-info.h b/arch/mips/include/asm/cpu-info.h index 41401d8eb7d1..21c8e29c8f91 100644 --- a/arch/mips/include/asm/cpu-info.h +++ b/arch/mips/include/asm/cpu-info.h @@ -84,6 +84,7 @@ struct cpuinfo_mips { extern struct cpuinfo_mips cpu_data[]; #define current_cpu_data cpu_data[smp_processor_id()] #define raw_current_cpu_data cpu_data[raw_smp_processor_id()] +#define boot_cpu_data cpu_data[0] extern void cpu_probe(void); extern void cpu_report(void); From b11247637f798f5eb0af2100acde3711d809e8fd Mon Sep 17 00:00:00 2001 From: Robert Nelson Date: Wed, 7 Aug 2013 09:14:15 -0500 Subject: [PATCH 190/350] ARM: dts: omap3-beagle-xm: fix string error in compatible property The beagle and beagle-xm entries were inside the same double quote. Split them to have two distinct entries. Signed-off-by: Robert Nelson Signed-off-by: Benoit Cousson --- arch/arm/boot/dts/omap3-beagle-xm.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/omap3-beagle-xm.dts b/arch/arm/boot/dts/omap3-beagle-xm.dts index afdb16417d4e..0c514dc8460c 100644 --- a/arch/arm/boot/dts/omap3-beagle-xm.dts +++ b/arch/arm/boot/dts/omap3-beagle-xm.dts @@ -11,7 +11,7 @@ / { model = "TI OMAP3 BeagleBoard xM"; - compatible = "ti,omap3-beagle-xm, ti,omap3-beagle", "ti,omap3"; + compatible = "ti,omap3-beagle-xm", "ti,omap3-beagle", "ti,omap3"; cpus { cpu@0 { From 2ba3549352277514a8e4790adff77a783ee1b9e2 Mon Sep 17 00:00:00 2001 From: Koen Kooi Date: Mon, 9 Sep 2013 16:29:21 +0200 Subject: [PATCH 191/350] ARM: dts: am335x-bone*: add DT for BeagleBone Black The BeagleBone Black is basically a regular BeagleBone with eMMC and HDMI added, so create a common dtsi both can use. IMPORTANT: booting the existing am335x-bone.dts will blow up the HDMI transceiver after a dozen boots with an uSD card inserted because LDO will be at 3.3V instead of 1.8. MMC support for AM335x still isn't in, so only the LDO change has been added. Signed-off-by: Koen Kooi Tested-by: Tom Rini Tested-by: Matt Porter Acked-by: Kevin Hilman Tested-by: Kevin Hilman Tested-by: Joel Fernandes Signed-off-by: Benoit Cousson --- arch/arm/boot/dts/Makefile | 1 + arch/arm/boot/dts/am335x-bone-common.dtsi | 262 ++++++++++++++++++++++ arch/arm/boot/dts/am335x-bone.dts | 256 +-------------------- arch/arm/boot/dts/am335x-boneblack.dts | 17 ++ 4 files changed, 281 insertions(+), 255 deletions(-) create mode 100644 arch/arm/boot/dts/am335x-bone-common.dtsi create mode 100644 arch/arm/boot/dts/am335x-boneblack.dts diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index cc0f1fb61753..e95af3f5433b 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -183,6 +183,7 @@ dtb-$(CONFIG_ARCH_OMAP2PLUS) += omap2420-h4.dtb \ am335x-evm.dtb \ am335x-evmsk.dtb \ am335x-bone.dtb \ + am335x-boneblack.dtb \ am3517-evm.dtb \ am3517_mt_ventoux.dtb \ am43x-epos-evm.dtb diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi new file mode 100644 index 000000000000..2f66deda9f5c --- /dev/null +++ b/arch/arm/boot/dts/am335x-bone-common.dtsi @@ -0,0 +1,262 @@ +/* + * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/ { + model = "TI AM335x BeagleBone"; + compatible = "ti,am335x-bone", "ti,am33xx"; + + cpus { + cpu@0 { + cpu0-supply = <&dcdc2_reg>; + }; + }; + + memory { + device_type = "memory"; + reg = <0x80000000 0x10000000>; /* 256 MB */ + }; + + am33xx_pinmux: pinmux@44e10800 { + pinctrl-names = "default"; + pinctrl-0 = <&clkout2_pin>; + + user_leds_s0: user_leds_s0 { + pinctrl-single,pins = < + 0x54 (PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* gpmc_a5.gpio1_21 */ + 0x58 (PIN_OUTPUT_PULLUP | MUX_MODE7) /* gpmc_a6.gpio1_22 */ + 0x5c (PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* gpmc_a7.gpio1_23 */ + 0x60 (PIN_OUTPUT_PULLUP | MUX_MODE7) /* gpmc_a8.gpio1_24 */ + >; + }; + + i2c0_pins: pinmux_i2c0_pins { + pinctrl-single,pins = < + 0x188 (PIN_INPUT_PULLUP | MUX_MODE0) /* i2c0_sda.i2c0_sda */ + 0x18c (PIN_INPUT_PULLUP | MUX_MODE0) /* i2c0_scl.i2c0_scl */ + >; + }; + + uart0_pins: pinmux_uart0_pins { + pinctrl-single,pins = < + 0x170 (PIN_INPUT_PULLUP | MUX_MODE0) /* uart0_rxd.uart0_rxd */ + 0x174 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* uart0_txd.uart0_txd */ + >; + }; + + clkout2_pin: pinmux_clkout2_pin { + pinctrl-single,pins = < + 0x1b4 (PIN_OUTPUT_PULLDOWN | MUX_MODE3) /* xdma_event_intr1.clkout2 */ + >; + }; + + cpsw_default: cpsw_default { + pinctrl-single,pins = < + /* Slave 1 */ + 0x110 (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_rxerr.mii1_rxerr */ + 0x114 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_txen.mii1_txen */ + 0x118 (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_rxdv.mii1_rxdv */ + 0x11c (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_txd3.mii1_txd3 */ + 0x120 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_txd2.mii1_txd2 */ + 0x124 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_txd1.mii1_txd1 */ + 0x128 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_txd0.mii1_txd0 */ + 0x12c (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_txclk.mii1_txclk */ + 0x130 (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_rxclk.mii1_rxclk */ + 0x134 (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_rxd3.mii1_rxd3 */ + 0x138 (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_rxd2.mii1_rxd2 */ + 0x13c (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_rxd1.mii1_rxd1 */ + 0x140 (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_rxd0.mii1_rxd0 */ + >; + }; + + cpsw_sleep: cpsw_sleep { + pinctrl-single,pins = < + /* Slave 1 reset value */ + 0x110 (PIN_INPUT_PULLDOWN | MUX_MODE7) + 0x114 (PIN_INPUT_PULLDOWN | MUX_MODE7) + 0x118 (PIN_INPUT_PULLDOWN | MUX_MODE7) + 0x11c (PIN_INPUT_PULLDOWN | MUX_MODE7) + 0x120 (PIN_INPUT_PULLDOWN | MUX_MODE7) + 0x124 (PIN_INPUT_PULLDOWN | MUX_MODE7) + 0x128 (PIN_INPUT_PULLDOWN | MUX_MODE7) + 0x12c (PIN_INPUT_PULLDOWN | MUX_MODE7) + 0x130 (PIN_INPUT_PULLDOWN | MUX_MODE7) + 0x134 (PIN_INPUT_PULLDOWN | MUX_MODE7) + 0x138 (PIN_INPUT_PULLDOWN | MUX_MODE7) + 0x13c (PIN_INPUT_PULLDOWN | MUX_MODE7) + 0x140 (PIN_INPUT_PULLDOWN | MUX_MODE7) + >; + }; + + davinci_mdio_default: davinci_mdio_default { + pinctrl-single,pins = < + /* MDIO */ + 0x148 (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0) /* mdio_data.mdio_data */ + 0x14c (PIN_OUTPUT_PULLUP | MUX_MODE0) /* mdio_clk.mdio_clk */ + >; + }; + + davinci_mdio_sleep: davinci_mdio_sleep { + pinctrl-single,pins = < + /* MDIO reset value */ + 0x148 (PIN_INPUT_PULLDOWN | MUX_MODE7) + 0x14c (PIN_INPUT_PULLDOWN | MUX_MODE7) + >; + }; + }; + + ocp { + uart0: serial@44e09000 { + pinctrl-names = "default"; + pinctrl-0 = <&uart0_pins>; + + status = "okay"; + }; + + musb: usb@47400000 { + status = "okay"; + + control@44e10000 { + status = "okay"; + }; + + usb-phy@47401300 { + status = "okay"; + }; + + usb-phy@47401b00 { + status = "okay"; + }; + + usb@47401000 { + status = "okay"; + }; + + usb@47401800 { + status = "okay"; + dr_mode = "host"; + }; + + dma-controller@07402000 { + status = "okay"; + }; + }; + + i2c0: i2c@44e0b000 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c0_pins>; + + status = "okay"; + clock-frequency = <400000>; + + tps: tps@24 { + reg = <0x24>; + }; + + }; + }; + + leds { + pinctrl-names = "default"; + pinctrl-0 = <&user_leds_s0>; + + compatible = "gpio-leds"; + + led@2 { + label = "beaglebone:green:heartbeat"; + gpios = <&gpio1 21 GPIO_ACTIVE_HIGH>; + linux,default-trigger = "heartbeat"; + default-state = "off"; + }; + + led@3 { + label = "beaglebone:green:mmc0"; + gpios = <&gpio1 22 GPIO_ACTIVE_HIGH>; + linux,default-trigger = "mmc0"; + default-state = "off"; + }; + + led@4 { + label = "beaglebone:green:usr2"; + gpios = <&gpio1 23 GPIO_ACTIVE_HIGH>; + default-state = "off"; + }; + + led@5 { + label = "beaglebone:green:usr3"; + gpios = <&gpio1 24 GPIO_ACTIVE_HIGH>; + default-state = "off"; + }; + }; +}; + +/include/ "tps65217.dtsi" + +&tps { + regulators { + dcdc1_reg: regulator@0 { + regulator-always-on; + }; + + dcdc2_reg: regulator@1 { + /* VDD_MPU voltage limits 0.95V - 1.26V with +/-4% tolerance */ + regulator-name = "vdd_mpu"; + regulator-min-microvolt = <925000>; + regulator-max-microvolt = <1325000>; + regulator-boot-on; + regulator-always-on; + }; + + dcdc3_reg: regulator@2 { + /* VDD_CORE voltage limits 0.95V - 1.1V with +/-4% tolerance */ + regulator-name = "vdd_core"; + regulator-min-microvolt = <925000>; + regulator-max-microvolt = <1150000>; + regulator-boot-on; + regulator-always-on; + }; + + ldo1_reg: regulator@3 { + regulator-always-on; + }; + + ldo2_reg: regulator@4 { + regulator-always-on; + }; + + ldo3_reg: regulator@5 { + regulator-always-on; + }; + + ldo4_reg: regulator@6 { + regulator-always-on; + }; + }; +}; + +&cpsw_emac0 { + phy_id = <&davinci_mdio>, <0>; + phy-mode = "mii"; +}; + +&cpsw_emac1 { + phy_id = <&davinci_mdio>, <1>; + phy-mode = "mii"; +}; + +&mac { + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&cpsw_default>; + pinctrl-1 = <&cpsw_sleep>; + +}; + +&davinci_mdio { + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&davinci_mdio_default>; + pinctrl-1 = <&davinci_mdio_sleep>; +}; diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts index d318987d44a1..7993c489982c 100644 --- a/arch/arm/boot/dts/am335x-bone.dts +++ b/arch/arm/boot/dts/am335x-bone.dts @@ -8,258 +8,4 @@ /dts-v1/; #include "am33xx.dtsi" - -/ { - model = "TI AM335x BeagleBone"; - compatible = "ti,am335x-bone", "ti,am33xx"; - - cpus { - cpu@0 { - cpu0-supply = <&dcdc2_reg>; - }; - }; - - memory { - device_type = "memory"; - reg = <0x80000000 0x10000000>; /* 256 MB */ - }; - - am33xx_pinmux: pinmux@44e10800 { - pinctrl-names = "default"; - pinctrl-0 = <&clkout2_pin>; - - user_leds_s0: user_leds_s0 { - pinctrl-single,pins = < - 0x54 (PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* gpmc_a5.gpio1_21 */ - 0x58 (PIN_OUTPUT_PULLUP | MUX_MODE7) /* gpmc_a6.gpio1_22 */ - 0x5c (PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* gpmc_a7.gpio1_23 */ - 0x60 (PIN_OUTPUT_PULLUP | MUX_MODE7) /* gpmc_a8.gpio1_24 */ - >; - }; - - i2c0_pins: pinmux_i2c0_pins { - pinctrl-single,pins = < - 0x188 (PIN_INPUT_PULLUP | MUX_MODE0) /* i2c0_sda.i2c0_sda */ - 0x18c (PIN_INPUT_PULLUP | MUX_MODE0) /* i2c0_scl.i2c0_scl */ - >; - }; - - uart0_pins: pinmux_uart0_pins { - pinctrl-single,pins = < - 0x170 (PIN_INPUT_PULLUP | MUX_MODE0) /* uart0_rxd.uart0_rxd */ - 0x174 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* uart0_txd.uart0_txd */ - >; - }; - - clkout2_pin: pinmux_clkout2_pin { - pinctrl-single,pins = < - 0x1b4 (PIN_OUTPUT_PULLDOWN | MUX_MODE3) /* xdma_event_intr1.clkout2 */ - >; - }; - - cpsw_default: cpsw_default { - pinctrl-single,pins = < - /* Slave 1 */ - 0x110 (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_rxerr.mii1_rxerr */ - 0x114 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_txen.mii1_txen */ - 0x118 (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_rxdv.mii1_rxdv */ - 0x11c (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_txd3.mii1_txd3 */ - 0x120 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_txd2.mii1_txd2 */ - 0x124 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_txd1.mii1_txd1 */ - 0x128 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_txd0.mii1_txd0 */ - 0x12c (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_txclk.mii1_txclk */ - 0x130 (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_rxclk.mii1_rxclk */ - 0x134 (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_rxd3.mii1_rxd3 */ - 0x138 (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_rxd2.mii1_rxd2 */ - 0x13c (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_rxd1.mii1_rxd1 */ - 0x140 (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_rxd0.mii1_rxd0 */ - >; - }; - - cpsw_sleep: cpsw_sleep { - pinctrl-single,pins = < - /* Slave 1 reset value */ - 0x110 (PIN_INPUT_PULLDOWN | MUX_MODE7) - 0x114 (PIN_INPUT_PULLDOWN | MUX_MODE7) - 0x118 (PIN_INPUT_PULLDOWN | MUX_MODE7) - 0x11c (PIN_INPUT_PULLDOWN | MUX_MODE7) - 0x120 (PIN_INPUT_PULLDOWN | MUX_MODE7) - 0x124 (PIN_INPUT_PULLDOWN | MUX_MODE7) - 0x128 (PIN_INPUT_PULLDOWN | MUX_MODE7) - 0x12c (PIN_INPUT_PULLDOWN | MUX_MODE7) - 0x130 (PIN_INPUT_PULLDOWN | MUX_MODE7) - 0x134 (PIN_INPUT_PULLDOWN | MUX_MODE7) - 0x138 (PIN_INPUT_PULLDOWN | MUX_MODE7) - 0x13c (PIN_INPUT_PULLDOWN | MUX_MODE7) - 0x140 (PIN_INPUT_PULLDOWN | MUX_MODE7) - >; - }; - - davinci_mdio_default: davinci_mdio_default { - pinctrl-single,pins = < - /* MDIO */ - 0x148 (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0) /* mdio_data.mdio_data */ - 0x14c (PIN_OUTPUT_PULLUP | MUX_MODE0) /* mdio_clk.mdio_clk */ - >; - }; - - davinci_mdio_sleep: davinci_mdio_sleep { - pinctrl-single,pins = < - /* MDIO reset value */ - 0x148 (PIN_INPUT_PULLDOWN | MUX_MODE7) - 0x14c (PIN_INPUT_PULLDOWN | MUX_MODE7) - >; - }; - }; - - ocp { - uart0: serial@44e09000 { - pinctrl-names = "default"; - pinctrl-0 = <&uart0_pins>; - - status = "okay"; - }; - - musb: usb@47400000 { - status = "okay"; - - control@44e10000 { - status = "okay"; - }; - - usb-phy@47401300 { - status = "okay"; - }; - - usb-phy@47401b00 { - status = "okay"; - }; - - usb@47401000 { - status = "okay"; - }; - - usb@47401800 { - status = "okay"; - dr_mode = "host"; - }; - - dma-controller@07402000 { - status = "okay"; - }; - }; - - i2c0: i2c@44e0b000 { - pinctrl-names = "default"; - pinctrl-0 = <&i2c0_pins>; - - status = "okay"; - clock-frequency = <400000>; - - tps: tps@24 { - reg = <0x24>; - }; - - }; - }; - - leds { - pinctrl-names = "default"; - pinctrl-0 = <&user_leds_s0>; - - compatible = "gpio-leds"; - - led@2 { - label = "beaglebone:green:heartbeat"; - gpios = <&gpio1 21 GPIO_ACTIVE_HIGH>; - linux,default-trigger = "heartbeat"; - default-state = "off"; - }; - - led@3 { - label = "beaglebone:green:mmc0"; - gpios = <&gpio1 22 GPIO_ACTIVE_HIGH>; - linux,default-trigger = "mmc0"; - default-state = "off"; - }; - - led@4 { - label = "beaglebone:green:usr2"; - gpios = <&gpio1 23 GPIO_ACTIVE_HIGH>; - default-state = "off"; - }; - - led@5 { - label = "beaglebone:green:usr3"; - gpios = <&gpio1 24 GPIO_ACTIVE_HIGH>; - default-state = "off"; - }; - }; -}; - -/include/ "tps65217.dtsi" - -&tps { - regulators { - dcdc1_reg: regulator@0 { - regulator-always-on; - }; - - dcdc2_reg: regulator@1 { - /* VDD_MPU voltage limits 0.95V - 1.26V with +/-4% tolerance */ - regulator-name = "vdd_mpu"; - regulator-min-microvolt = <925000>; - regulator-max-microvolt = <1325000>; - regulator-boot-on; - regulator-always-on; - }; - - dcdc3_reg: regulator@2 { - /* VDD_CORE voltage limits 0.95V - 1.1V with +/-4% tolerance */ - regulator-name = "vdd_core"; - regulator-min-microvolt = <925000>; - regulator-max-microvolt = <1150000>; - regulator-boot-on; - regulator-always-on; - }; - - ldo1_reg: regulator@3 { - regulator-always-on; - }; - - ldo2_reg: regulator@4 { - regulator-always-on; - }; - - ldo3_reg: regulator@5 { - regulator-always-on; - }; - - ldo4_reg: regulator@6 { - regulator-always-on; - }; - }; -}; - -&cpsw_emac0 { - phy_id = <&davinci_mdio>, <0>; - phy-mode = "mii"; -}; - -&cpsw_emac1 { - phy_id = <&davinci_mdio>, <1>; - phy-mode = "mii"; -}; - -&mac { - pinctrl-names = "default", "sleep"; - pinctrl-0 = <&cpsw_default>; - pinctrl-1 = <&cpsw_sleep>; - -}; - -&davinci_mdio { - pinctrl-names = "default", "sleep"; - pinctrl-0 = <&davinci_mdio_default>; - pinctrl-1 = <&davinci_mdio_sleep>; -}; +#include "am335x-bone-common.dtsi" diff --git a/arch/arm/boot/dts/am335x-boneblack.dts b/arch/arm/boot/dts/am335x-boneblack.dts new file mode 100644 index 000000000000..197cadf72d2c --- /dev/null +++ b/arch/arm/boot/dts/am335x-boneblack.dts @@ -0,0 +1,17 @@ +/* + * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +/dts-v1/; + +#include "am33xx.dtsi" +#include "am335x-bone-common.dtsi" + +&ldo3_reg { + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; +}; From 6f61ee232a338190e0c8fd59f169604c9b90f748 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Wed, 21 Aug 2013 20:01:30 +0530 Subject: [PATCH 192/350] ARM: dts: OMAP5: fix reg property size USB3 block has a 64KiB space, another 64KiB is used for the wrapper. Without this change, resource_size() will get confused and driver won't probe because size will be negative. Signed-off-by: Felipe Balbi Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Benoit Cousson --- arch/arm/boot/dts/omap5.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi index 07be2cd7b318..359498b5a509 100644 --- a/arch/arm/boot/dts/omap5.dtsi +++ b/arch/arm/boot/dts/omap5.dtsi @@ -637,7 +637,7 @@ omap_dwc3@4a020000 { compatible = "ti,dwc3"; ti,hwmods = "usb_otg_ss"; - reg = <0x4a020000 0x1000>; + reg = <0x4a020000 0x10000>; interrupts = ; #address-cells = <1>; #size-cells = <1>; @@ -645,7 +645,7 @@ ranges; dwc3@4a030000 { compatible = "snps,dwc3"; - reg = <0x4a030000 0x1000>; + reg = <0x4a030000 0x10000>; interrupts = ; usb-phy = <&usb2_phy>, <&usb3_phy>; tx-fifo-resize; From b6731f78c2c03e5d8732c809b86719cbbf5c7794 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Wed, 21 Aug 2013 20:01:31 +0530 Subject: [PATCH 193/350] ARM: dts: OMAP5: fix ocp2scp DTS data Fix the DTS data for ocp2scp node by adding the missing reg property. Signed-off-by: Felipe Balbi Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Benoit Cousson --- arch/arm/boot/dts/omap5.dtsi | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi index 359498b5a509..7cdea1bfea09 100644 --- a/arch/arm/boot/dts/omap5.dtsi +++ b/arch/arm/boot/dts/omap5.dtsi @@ -652,10 +652,11 @@ }; }; - ocp2scp { + ocp2scp@4a080000 { compatible = "ti,omap-ocp2scp"; #address-cells = <1>; #size-cells = <1>; + reg = <0x4a080000 0x20>; ranges; ti,hwmods = "ocp2scp1"; usb2_phy: usb2phy@4a084000 { From 5495e39fb3695182b9f2a72fe4169056cada37a1 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 10 Sep 2013 12:11:01 +1000 Subject: [PATCH 194/350] drm/nouveau/bios/init: stub opcode 0xaa Signed-off-by: Ben Skeggs --- .../gpu/drm/nouveau/core/subdev/bios/init.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/init.c b/drivers/gpu/drm/nouveau/core/subdev/bios/init.c index 2e11ea02cf87..cede3d662c35 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/bios/init.c +++ b/drivers/gpu/drm/nouveau/core/subdev/bios/init.c @@ -579,8 +579,22 @@ static void init_reserved(struct nvbios_init *init) { u8 opcode = nv_ro08(init->bios, init->offset); - trace("RESERVED\t0x%02x\n", opcode); - init->offset += 1; + u8 length, i; + + switch (opcode) { + case 0xaa: + length = 4; + break; + default: + length = 1; + break; + } + + trace("RESERVED 0x%02x\t", opcode); + for (i = 1; i < length; i++) + cont(" 0x%02x", nv_ro08(init->bios, init->offset + i)); + cont("\n"); + init->offset += length; } /** @@ -2135,6 +2149,7 @@ static struct nvbios_init_opcode { [0x99] = { init_zm_auxch }, [0x9a] = { init_i2c_long_if }, [0xa9] = { init_gpio_ne }, + [0xaa] = { init_reserved }, }; #define init_opcode_nr (sizeof(init_opcode) / sizeof(init_opcode[0])) From fc1620883af8cbc10bfb1a4ef2eb4e8113243012 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 10 Sep 2013 13:20:34 +1000 Subject: [PATCH 195/350] drm/nouveau/kms: enable for non-vga pci classes Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_display.c | 39 ++++++++++------------- drivers/gpu/drm/nouveau/nouveau_fbcon.c | 3 +- 2 files changed, 19 insertions(+), 23 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index d2712e6e5d31..7848590f5568 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -278,7 +278,6 @@ nouveau_display_create(struct drm_device *dev) { struct nouveau_drm *drm = nouveau_drm(dev); struct nouveau_display *disp; - u32 pclass = dev->pdev->class >> 8; int ret, gen; disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL); @@ -340,29 +339,25 @@ nouveau_display_create(struct drm_device *dev) drm_kms_helper_poll_init(dev); drm_kms_helper_poll_disable(dev); - if (nouveau_modeset == 1 || - (nouveau_modeset < 0 && pclass == PCI_CLASS_DISPLAY_VGA)) { - if (drm->vbios.dcb.entries) { - if (nv_device(drm->device)->card_type < NV_50) - ret = nv04_display_create(dev); - else - ret = nv50_display_create(dev); - } else { - ret = 0; - } - - if (ret) - goto disp_create_err; - - if (dev->mode_config.num_crtc) { - ret = drm_vblank_init(dev, dev->mode_config.num_crtc); - if (ret) - goto vblank_err; - } - - nouveau_backlight_init(dev); + if (drm->vbios.dcb.entries) { + if (nv_device(drm->device)->card_type < NV_50) + ret = nv04_display_create(dev); + else + ret = nv50_display_create(dev); + } else { + ret = 0; } + if (ret) + goto disp_create_err; + + if (dev->mode_config.num_crtc) { + ret = drm_vblank_init(dev, dev->mode_config.num_crtc); + if (ret) + goto vblank_err; + } + + nouveau_backlight_init(dev); return 0; vblank_err: diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c index 8f6d63d7edd3..a86ecf65c164 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c +++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c @@ -454,7 +454,8 @@ nouveau_fbcon_init(struct drm_device *dev) int preferred_bpp; int ret; - if (!dev->mode_config.num_crtc) + if (!dev->mode_config.num_crtc || + (dev->pdev->class >> 8) != PCI_CLASS_DISPLAY_VGA) return 0; fbcon = kzalloc(sizeof(struct nouveau_fbdev), GFP_KERNEL); From 6b19e47dc11ea567ce330098fe9db3b7337e9f34 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 17 Sep 2013 10:20:31 +1000 Subject: [PATCH 196/350] drm/nouveau/bios/init: fix thinko in INIT_CONFIGURE_MEM Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/core/subdev/bios/init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/init.c b/drivers/gpu/drm/nouveau/core/subdev/bios/init.c index cede3d662c35..57cda2a1437b 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/bios/init.c +++ b/drivers/gpu/drm/nouveau/core/subdev/bios/init.c @@ -1451,7 +1451,7 @@ init_configure_mem(struct nvbios_init *init) data = init_rdvgai(init, 0x03c4, 0x01); init_wrvgai(init, 0x03c4, 0x01, data | 0x20); - while ((addr = nv_ro32(bios, sdata)) != 0xffffffff) { + for (; (addr = nv_ro32(bios, sdata)) != 0xffffffff; sdata += 4) { switch (addr) { case 0x10021c: /* CKE_NORMAL */ case 0x1002d0: /* CMD_REFRESH */ From 7a59cc34a3d7b97a00829613bb1a630f5004643b Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 17 Sep 2013 14:13:32 +1000 Subject: [PATCH 197/350] drm/nouveau/ttm: prevent double-free in nouveau_sgdma_create_ttm() failure path TTM calls the destructor on its own already... Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_sgdma.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_sgdma.c b/drivers/gpu/drm/nouveau/nouveau_sgdma.c index ca5492ac2da5..0843ebc910d4 100644 --- a/drivers/gpu/drm/nouveau/nouveau_sgdma.c +++ b/drivers/gpu/drm/nouveau/nouveau_sgdma.c @@ -104,9 +104,7 @@ nouveau_sgdma_create_ttm(struct ttm_bo_device *bdev, else nvbe->ttm.ttm.func = &nv50_sgdma_backend; - if (ttm_dma_tt_init(&nvbe->ttm, bdev, size, page_flags, dummy_read_page)) { - kfree(nvbe); + if (ttm_dma_tt_init(&nvbe->ttm, bdev, size, page_flags, dummy_read_page)) return NULL; - } return &nvbe->ttm.ttm; } From f0cffa497e3c9d5205ece8ec40b4b0175ce35e6c Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Wed, 4 Sep 2013 19:45:39 -0400 Subject: [PATCH 198/350] staging/rtl8188eu: pass channel list by reference instead of copying struct. Signed-off-by: Dave Jones Acked-by: Larry Finger Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8188eu/core/rtw_mlme_ext.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c index 8b2ba26ba38d..4b2eb8e9b562 100644 --- a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c +++ b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c @@ -1827,13 +1827,13 @@ unsigned int OnAction_back(struct adapter *padapter, union recv_frame *precv_fra #ifdef CONFIG_88EU_P2P -static int get_reg_classes_full_count(struct p2p_channels channel_list) +static int get_reg_classes_full_count(struct p2p_channels *channel_list) { int cnt = 0; int i; - for (i = 0; i < channel_list.reg_classes; i++) { - cnt += channel_list.reg_class[i].channels; + for (i = 0; i < channel_list->reg_classes; i++) { + cnt += channel_list->reg_class[i].channels; } return cnt; @@ -2065,7 +2065,7 @@ void issue_p2p_GO_request(struct adapter *padapter, u8 *raddr) /* + number of channels in all classes */ len_channellist_attr = 3 + (1 + 1) * (u16)(pmlmeext->channel_list.reg_classes) - + get_reg_classes_full_count(pmlmeext->channel_list); + + get_reg_classes_full_count(&pmlmeext->channel_list); *(__le16 *)(p2pie + p2pielen) = cpu_to_le16(len_channellist_attr); p2pielen += 2; @@ -2437,7 +2437,7 @@ static void issue_p2p_GO_response(struct adapter *padapter, u8 *raddr, u8 *frame /* + number of channels in all classes */ len_channellist_attr = 3 + (1 + 1) * (u16)pmlmeext->channel_list.reg_classes - + get_reg_classes_full_count(pmlmeext->channel_list); + + get_reg_classes_full_count(&pmlmeext->channel_list); *(__le16 *)(p2pie + p2pielen) = cpu_to_le16(len_channellist_attr); @@ -2859,7 +2859,7 @@ void issue_p2p_invitation_request(struct adapter *padapter, u8 *raddr) /* + number of channels in all classes */ len_channellist_attr = 3 + (1 + 1) * (u16)pmlmeext->channel_list.reg_classes - + get_reg_classes_full_count(pmlmeext->channel_list); + + get_reg_classes_full_count(&pmlmeext->channel_list); *(__le16 *)(p2pie + p2pielen) = cpu_to_le16(len_channellist_attr); @@ -3120,7 +3120,7 @@ void issue_p2p_invitation_response(struct adapter *padapter, u8 *raddr, u8 dialo /* + number of channels in all classes */ len_channellist_attr = 3 + (1 + 1) * (u16)pmlmeext->channel_list.reg_classes - + get_reg_classes_full_count(pmlmeext->channel_list); + + get_reg_classes_full_count(&pmlmeext->channel_list); *(__le16 *)(p2pie + p2pielen) = cpu_to_le16(len_channellist_attr); p2pielen += 2; From 0b7cb6976e8d390726d2b5a0c1235d13b754fed8 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Thu, 5 Sep 2013 00:00:52 -0400 Subject: [PATCH 199/350] staging/vt6656: Fix screwed up indentation in swGetOFDMControlRate The indentation in the swGetOFDMControlRate function is screwed up. At first it appears that there are missing braces on a multi-line if, but looking at history, commit dd0a774fc727ee793780197beb3f2cf80bfefa99 ("staging: vt6656: card/main_usb/device use new structure names") incorrectly indented the two lines below. Signed-off-by: Dave Jones Signed-off-by: Greg Kroah-Hartman --- drivers/staging/vt6656/card.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/staging/vt6656/card.c b/drivers/staging/vt6656/card.c index dbf11ecb794e..19d3cf451b88 100644 --- a/drivers/staging/vt6656/card.c +++ b/drivers/staging/vt6656/card.c @@ -172,8 +172,8 @@ static u16 swGetOFDMControlRate(struct vnt_private *pDevice, u16 wRateIdx) if (!CARDbIsOFDMinBasicRate(pDevice)) { DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "swGetOFDMControlRate:(NO OFDM) %d\n", wRateIdx); - if (wRateIdx > RATE_24M) - wRateIdx = RATE_24M; + if (wRateIdx > RATE_24M) + wRateIdx = RATE_24M; return wRateIdx; } From c42a5ed0d019f9095987f1b98906b2b2d4b1c24d Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 5 Sep 2013 10:49:01 +0200 Subject: [PATCH 200/350] staging/lustre: Correct default for LUSTRE_TRANSLATE_ERRNOS LUSTRE_TRANSLATE_ERRNOS is never enabled, a "true" is not a valid value. Use "default y" instead of "default true" to fix this. Signed-off-by: Geert Uytterhoeven Signed-off-by: Greg Kroah-Hartman --- drivers/staging/lustre/lustre/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/lustre/lustre/Kconfig b/drivers/staging/lustre/lustre/Kconfig index 4e898e491860..e44965bdaac3 100644 --- a/drivers/staging/lustre/lustre/Kconfig +++ b/drivers/staging/lustre/lustre/Kconfig @@ -52,7 +52,7 @@ config LUSTRE_DEBUG_EXPENSIVE_CHECK config LUSTRE_TRANSLATE_ERRNOS bool depends on LUSTRE_FS && !X86 - default true + default y config LUSTRE_LLITE_LLOOP bool "Lustre virtual block device" From 82f5e5cea5da9c1488c4d6572dc85e352b1b5b29 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Fri, 6 Sep 2013 14:45:36 +0200 Subject: [PATCH 201/350] staging: r8188eu: Fix uninitialized variable change_inx MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit drivers/staging/rtl8188eu/core/rtw_wlan_util.c: In function ‘WMMOnAssocRsp’: drivers/staging/rtl8188eu/core/rtw_wlan_util.c:634: warning: ‘change_inx’ may be used uninitialized in this function And the compiler is right: change_inx should be initialized to false. Signed-off-by: Geert Uytterhoeven Acked-by: Larry Finger Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8188eu/core/rtw_wlan_util.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/rtl8188eu/core/rtw_wlan_util.c b/drivers/staging/rtl8188eu/core/rtw_wlan_util.c index 013ea487e7ac..8018edd3d42e 100644 --- a/drivers/staging/rtl8188eu/core/rtw_wlan_util.c +++ b/drivers/staging/rtl8188eu/core/rtw_wlan_util.c @@ -631,7 +631,7 @@ void WMMOnAssocRsp(struct adapter *padapter) inx[0] = 0; inx[1] = 1; inx[2] = 2; inx[3] = 3; if (pregpriv->wifi_spec == 1) { - u32 j, tmp, change_inx; + u32 j, tmp, change_inx = false; /* entry indx: 0->vo, 1->vi, 2->be, 3->bk. */ for (i = 0; i < 4; i++) { From e72b9da08319f6f4f86b0c93499cd522062c5e7b Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Tue, 10 Sep 2013 21:38:04 -0700 Subject: [PATCH 202/350] staging: xillybus: fix format string usage Makes sure format string cannot leak into device_create() call. Signed-off-by: Kees Cook Signed-off-by: Greg Kroah-Hartman --- drivers/staging/xillybus/xillybus_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/xillybus/xillybus_core.c b/drivers/staging/xillybus/xillybus_core.c index efc56987a60b..7db6f03a0054 100644 --- a/drivers/staging/xillybus/xillybus_core.c +++ b/drivers/staging/xillybus/xillybus_core.c @@ -2054,7 +2054,7 @@ static int xillybus_init_chrdev(struct xilly_endpoint *endpoint, NULL, MKDEV(major, i), NULL, - devname); + "%s", devname); if (IS_ERR(device)) { pr_warn("xillybus: Failed to create %s " From 1ea12fef83c3269eb7ba04f1d20db00c581515b2 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Tue, 10 Sep 2013 21:40:43 -0700 Subject: [PATCH 203/350] staging: dgap: fix overflows and format strings The boot message buffer could potentially overflow the stack and the heap. Additionally make sure format strings could not leak into printk() calls. Signed-off-by: Kees Cook Signed-off-by: Greg Kroah-Hartman --- drivers/staging/dgap/dgap_driver.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) diff --git a/drivers/staging/dgap/dgap_driver.c b/drivers/staging/dgap/dgap_driver.c index 724a685753dd..40ef785a0428 100644 --- a/drivers/staging/dgap/dgap_driver.c +++ b/drivers/staging/dgap/dgap_driver.c @@ -474,7 +474,7 @@ static void dgap_cleanup_board(struct board_t *brd) DGAP_LOCK(dgap_global_lock, flags); brd->msgbuf = NULL; - printk(brd->msgbuf_head); + printk("%s", brd->msgbuf_head); kfree(brd->msgbuf_head); brd->msgbuf_head = NULL; DGAP_UNLOCK(dgap_global_lock, flags); @@ -628,7 +628,7 @@ static int dgap_found_board(struct pci_dev *pdev, int id) DPR_INIT(("dgap_scan(%d) - printing out the msgbuf\n", i)); DGAP_LOCK(dgap_global_lock, flags); brd->msgbuf = NULL; - printk(brd->msgbuf_head); + printk("%s", brd->msgbuf_head); kfree(brd->msgbuf_head); brd->msgbuf_head = NULL; DGAP_UNLOCK(dgap_global_lock, flags); @@ -955,25 +955,28 @@ static void dgap_mbuf(struct board_t *brd, const char *fmt, ...) { char buf[1024]; int i; unsigned long flags; + size_t length; DGAP_LOCK(dgap_global_lock, flags); /* Format buf using fmt and arguments contained in ap. */ va_start(ap, fmt); - i = vsprintf(buf, fmt, ap); + i = vsnprintf(buf, sizeof(buf), fmt, ap); va_end(ap); DPR((buf)); if (!brd || !brd->msgbuf) { - printk(buf); + printk("%s", buf); DGAP_UNLOCK(dgap_global_lock, flags); return; } - memcpy(brd->msgbuf, buf, strlen(buf)); - brd->msgbuf += strlen(buf); - *brd->msgbuf = 0; + length = strlen(buf) + 1; + if (brd->msgbuf - brd->msgbuf_head < length) + length = brd->msgbuf - brd->msgbuf_head; + memcpy(brd->msgbuf, buf, length); + brd->msgbuf += length; DGAP_UNLOCK(dgap_global_lock, flags); } From 9edf0f670bdc8fa8b6676893b0a3bd2bf30a2362 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Tue, 10 Sep 2013 21:37:19 -0700 Subject: [PATCH 204/350] staging: lustre: clean up format string usages This fixes up the usage of snprintf, strncpy, and format strings in the call to kthread_run to avoid ever accidentally allowing a format string into the thread name. Signed-off-by: Kees Cook Signed-off-by: Greg Kroah-Hartman --- drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c | 2 +- drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c | 2 +- drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c | 4 ++-- drivers/staging/lustre/lustre/libcfs/workitem.c | 2 +- drivers/staging/lustre/lustre/ptlrpc/pinger.c | 4 ++-- drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c | 8 ++++---- drivers/staging/lustre/lustre/ptlrpc/service.c | 6 +++--- 7 files changed, 14 insertions(+), 14 deletions(-) diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c index 086ca3d7241b..26b49a24b3df 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c @@ -1802,7 +1802,7 @@ kiblnd_recv (lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg, int delayed, int kiblnd_thread_start(int (*fn)(void *arg), void *arg, char *name) { - struct task_struct *task = kthread_run(fn, arg, name); + struct task_struct *task = kthread_run(fn, arg, "%s", name); if (IS_ERR(task)) return PTR_ERR(task); diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c index 2c581b7fa8ad..68a4f52ec998 100644 --- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c +++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c @@ -1005,7 +1005,7 @@ ksocknal_send(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg) int ksocknal_thread_start(int (*fn)(void *arg), void *arg, char *name) { - struct task_struct *task = kthread_run(fn, arg, name); + struct task_struct *task = kthread_run(fn, arg, "%s", name); if (IS_ERR(task)) return PTR_ERR(task); diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c index 3916bda3004c..a100a0b96381 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c @@ -800,9 +800,9 @@ static int ldlm_bl_thread_start(struct ldlm_bl_pool *blp) init_completion(&bltd.bltd_comp); bltd.bltd_num = atomic_read(&blp->blp_num_threads); - snprintf(bltd.bltd_name, sizeof(bltd.bltd_name) - 1, + snprintf(bltd.bltd_name, sizeof(bltd.bltd_name), "ldlm_bl_%02d", bltd.bltd_num); - task = kthread_run(ldlm_bl_thread_main, &bltd, bltd.bltd_name); + task = kthread_run(ldlm_bl_thread_main, &bltd, "%s", bltd.bltd_name); if (IS_ERR(task)) { CERROR("cannot start LDLM thread ldlm_bl_%02d: rc %ld\n", atomic_read(&blp->blp_num_threads), PTR_ERR(task)); diff --git a/drivers/staging/lustre/lustre/libcfs/workitem.c b/drivers/staging/lustre/lustre/libcfs/workitem.c index 462172d1a756..1a55c81892e0 100644 --- a/drivers/staging/lustre/lustre/libcfs/workitem.c +++ b/drivers/staging/lustre/lustre/libcfs/workitem.c @@ -397,7 +397,7 @@ cfs_wi_sched_create(char *name, struct cfs_cpt_table *cptab, sched->ws_name, sched->ws_nthreads); } - task = kthread_run(cfs_wi_scheduler, sched, name); + task = kthread_run(cfs_wi_scheduler, sched, "%s", name); if (!IS_ERR(task)) { nthrs--; continue; diff --git a/drivers/staging/lustre/lustre/ptlrpc/pinger.c b/drivers/staging/lustre/lustre/ptlrpc/pinger.c index 227a0ae9593b..5dec771d70ee 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/pinger.c +++ b/drivers/staging/lustre/lustre/ptlrpc/pinger.c @@ -383,8 +383,8 @@ int ptlrpc_start_pinger(void) /* CLONE_VM and CLONE_FILES just avoid a needless copy, because we * just drop the VM and FILES in cfs_daemonize_ctxt() right away. */ - rc = PTR_ERR(kthread_run(ptlrpc_pinger_main, - &pinger_thread, pinger_thread.t_name)); + rc = PTR_ERR(kthread_run(ptlrpc_pinger_main, &pinger_thread, + "%s", pinger_thread.t_name)); if (IS_ERR_VALUE(rc)) { CERROR("cannot start thread: %d\n", rc); return rc; diff --git a/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c b/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c index fbdeff65d059..89c9be96f454 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c +++ b/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c @@ -615,7 +615,7 @@ int ptlrpcd_start(int index, int max, const char *name, struct ptlrpcd_ctl *pc) init_completion(&pc->pc_starting); init_completion(&pc->pc_finishing); spin_lock_init(&pc->pc_lock); - strncpy(pc->pc_name, name, sizeof(pc->pc_name) - 1); + strlcpy(pc->pc_name, name, sizeof(pc->pc_name)); pc->pc_set = ptlrpc_prep_set(); if (pc->pc_set == NULL) GOTO(out, rc = -ENOMEM); @@ -638,7 +638,7 @@ int ptlrpcd_start(int index, int max, const char *name, struct ptlrpcd_ctl *pc) GOTO(out, rc); } - task = kthread_run(ptlrpcd, pc, pc->pc_name); + task = kthread_run(ptlrpcd, pc, "%s", pc->pc_name); if (IS_ERR(task)) GOTO(out, rc = PTR_ERR(task)); @@ -745,7 +745,7 @@ static int ptlrpcd_init(void) if (ptlrpcds == NULL) GOTO(out, rc = -ENOMEM); - snprintf(name, 15, "ptlrpcd_rcv"); + snprintf(name, sizeof(name), "ptlrpcd_rcv"); set_bit(LIOD_RECOVERY, &ptlrpcds->pd_thread_rcv.pc_flags); rc = ptlrpcd_start(-1, nthreads, name, &ptlrpcds->pd_thread_rcv); if (rc < 0) @@ -764,7 +764,7 @@ static int ptlrpcd_init(void) * unnecessary dependency. But how to distribute async RPCs load * among all the ptlrpc daemons becomes another trouble. */ for (i = 0; i < nthreads; i++) { - snprintf(name, 15, "ptlrpcd_%d", i); + snprintf(name, sizeof(name), "ptlrpcd_%d", i); rc = ptlrpcd_start(i, nthreads, name, &ptlrpcds->pd_threads[i]); if (rc < 0) GOTO(out, rc); diff --git a/drivers/staging/lustre/lustre/ptlrpc/service.c b/drivers/staging/lustre/lustre/ptlrpc/service.c index ac8b5fd2300b..acf75f3873d1 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/service.c +++ b/drivers/staging/lustre/lustre/ptlrpc/service.c @@ -2718,15 +2718,15 @@ int ptlrpc_start_thread(struct ptlrpc_service_part *svcpt, int wait) spin_unlock(&svcpt->scp_lock); if (svcpt->scp_cpt >= 0) { - snprintf(thread->t_name, PTLRPC_THR_NAME_LEN, "%s%02d_%03d", + snprintf(thread->t_name, sizeof(thread->t_name), "%s%02d_%03d", svc->srv_thread_name, svcpt->scp_cpt, thread->t_id); } else { - snprintf(thread->t_name, PTLRPC_THR_NAME_LEN, "%s_%04d", + snprintf(thread->t_name, sizeof(thread->t_name), "%s_%04d", svc->srv_thread_name, thread->t_id); } CDEBUG(D_RPCTRACE, "starting thread '%s'\n", thread->t_name); - rc = PTR_ERR(kthread_run(ptlrpc_main, thread, thread->t_name)); + rc = PTR_ERR(kthread_run(ptlrpc_main, thread, "%s", thread->t_name)); if (IS_ERR_VALUE(rc)) { CERROR("cannot start thread '%s': rc %d\n", thread->t_name, rc); From 5418ae3188a9a57f318f51c3c26c0fedfea82f8b Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Tue, 10 Sep 2013 21:41:16 -0700 Subject: [PATCH 205/350] staging: dgnc: fix potential format string flaw Make sure that format strings cannot leak into printk() calls from the msgbuf string. Signed-off-by: Kees Cook Signed-off-by: Greg Kroah-Hartman --- drivers/staging/dgnc/dgnc_driver.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/staging/dgnc/dgnc_driver.c b/drivers/staging/dgnc/dgnc_driver.c index f8c1e22585d6..71d2b83cc3a1 100644 --- a/drivers/staging/dgnc/dgnc_driver.c +++ b/drivers/staging/dgnc/dgnc_driver.c @@ -454,7 +454,7 @@ static void dgnc_cleanup_board(struct board_t *brd) DGNC_LOCK(dgnc_global_lock, flags); brd->msgbuf = NULL; - printk(brd->msgbuf_head); + printk("%s", brd->msgbuf_head); kfree(brd->msgbuf_head); brd->msgbuf_head = NULL; DGNC_UNLOCK(dgnc_global_lock, flags); @@ -710,7 +710,7 @@ static int dgnc_found_board(struct pci_dev *pdev, int id) DPR_INIT(("dgnc_scan(%d) - printing out the msgbuf\n", i)); DGNC_LOCK(dgnc_global_lock, flags); brd->msgbuf = NULL; - printk(brd->msgbuf_head); + printk("%s", brd->msgbuf_head); kfree(brd->msgbuf_head); brd->msgbuf_head = NULL; DGNC_UNLOCK(dgnc_global_lock, flags); From ae18c5c62570247eab1178e2db28539a653ac5b5 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Wed, 11 Sep 2013 13:38:04 -0700 Subject: [PATCH 206/350] drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c: rename PTRS_PER_PAGE It duplicates the definition in arch/alpha/include/asm/pgtable.h and emits warnings. Cc: Andreas Dilger Cc: Peng Tao Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c index e90c8fb7da6a..6547f46a7729 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c +++ b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c @@ -59,8 +59,8 @@ ****************************************/ -#define PTRS_PER_PAGE (PAGE_CACHE_SIZE / sizeof(void *)) -#define PAGES_PER_POOL (PTRS_PER_PAGE) +#define POINTERS_PER_PAGE (PAGE_CACHE_SIZE / sizeof(void *)) +#define PAGES_PER_POOL (POINTERS_PER_PAGE) #define IDLE_IDX_MAX (100) #define IDLE_IDX_WEIGHT (3) From ed12cd612a0ca95162c0505a3fcd94fd047a8928 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Thu, 5 Sep 2013 21:43:59 +0300 Subject: [PATCH 207/350] staging: octeon-ethernet: make dropped packets to consume NAPI budget We should count also dropped packets, otherwise the NAPI handler may end up running too long. Signed-off-by: Aaro Koskinen Acked-by: Jason A. Donenfeld Signed-off-by: Greg Kroah-Hartman --- drivers/staging/octeon/ethernet-rx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c index 34afc16bc493..10e54165d89c 100644 --- a/drivers/staging/octeon/ethernet-rx.c +++ b/drivers/staging/octeon/ethernet-rx.c @@ -303,6 +303,7 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget) if (backlog > budget * cores_in_use && napi != NULL) cvm_oct_enable_one_cpu(); } + rx_count++; skb_in_hw = USE_SKBUFFS_IN_HW && work->word2.s.bufs == 1; if (likely(skb_in_hw)) { @@ -429,7 +430,6 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget) #endif } netif_receive_skb(skb); - rx_count++; } else { /* Drop any packet received for a device that isn't up */ /* From c35656db4dfdbcc98782bfac6bf17868f9cb8ce3 Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Thu, 5 Sep 2013 21:44:00 +0300 Subject: [PATCH 208/350] staging: octeon-ethernet: remove skb alloc failure warnings Remove skb allocation failure warnings. They will trigger a page allocation warning already. Also, one of the warnings was not ratelimited, causing the box to lock up under heavy traffic & low memory. Signed-off-by: Aaro Koskinen Acked-by: David Daney Acked-by: Jason A. Donenfeld Signed-off-by: Greg Kroah-Hartman --- drivers/staging/octeon/ethernet-mem.c | 7 +------ drivers/staging/octeon/ethernet-rx.c | 3 --- 2 files changed, 1 insertion(+), 9 deletions(-) diff --git a/drivers/staging/octeon/ethernet-mem.c b/drivers/staging/octeon/ethernet-mem.c index 78b6cb743769..199059d64c9b 100644 --- a/drivers/staging/octeon/ethernet-mem.c +++ b/drivers/staging/octeon/ethernet-mem.c @@ -48,13 +48,8 @@ static int cvm_oct_fill_hw_skbuff(int pool, int size, int elements) while (freed) { struct sk_buff *skb = dev_alloc_skb(size + 256); - if (unlikely(skb == NULL)) { - pr_warning - ("Failed to allocate skb for hardware pool %d\n", - pool); + if (unlikely(skb == NULL)) break; - } - skb_reserve(skb, 256 - (((unsigned long)skb->data) & 0x7f)); *(struct sk_buff **)(skb->data - sizeof(void *)) = skb; cvmx_fpa_free(skb->data, pool, DONT_WRITEBACK(size / 128)); diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c index 10e54165d89c..e14a1bb04361 100644 --- a/drivers/staging/octeon/ethernet-rx.c +++ b/drivers/staging/octeon/ethernet-rx.c @@ -337,9 +337,6 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget) */ skb = dev_alloc_skb(work->len); if (!skb) { - printk_ratelimited("Port %d failed to allocate " - "skbuff, packet dropped\n", - work->ipprt); cvm_oct_free_work(work); continue; } From 8e8c551f77fe80a1b8b8176db30b95c674ff9a8d Mon Sep 17 00:00:00 2001 From: Aaro Koskinen Date: Thu, 5 Sep 2013 21:44:01 +0300 Subject: [PATCH 209/350] staging: octeon-ethernet: rgmii: enable interrupts that we can handle Enable only those interrupts that we can handle & acknowledge in the interrupt handler. At least on EdgeRouter Lite, the hardware may occasionally interrupt with some error condition when the physical link status changes frequently. Since the interrupt condition is not acked properly, this leads to the following warning and the IRQ gets disabled completely: [ 41.324700] eth0: Link down [ 44.324721] eth0: 1000 Mbps Full duplex, port 0, queue 0 [ 44.885590] irq 117: nobody cared (try booting with the "irqpoll" option) [ 44.892397] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.11.0-rc5-edge-los.git-27d042f-dirty-00950-gaa42f2d-dirty #8 [ 44.902825] Stack : ffffffff815c0000 0000000000000004 0000000000000003 0000000000000000 ffffffff81fd0000 ffffffff815c0000 0000000000000004 ffffffff8118530c ffffffff815c0000 ffffffff811858d8 0000000000000000 0000000000000000 ffffffff81fd0000 ffffffff81fc0000 ffffffff8152f3a0 ffffffff815b7bf7 ffffffff81fc6688 ffffffff815b8060 0000000000000000 0000000000000000 0000000000000000 ffffffff815346c8 ffffffff815346b0 ffffffff814a6a18 ffffffff8158b848 ffffffff81145614 ffffffff81593800 ffffffff81187174 ffffffff815b7d00 ffffffff8158b760 0000000000000000 ffffffff814a9184 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ffffffff811203b8 0000000000000000 0000000000000000 ... [ 44.968408] Call Trace: [ 44.970873] [] show_stack+0x68/0x80 [ 44.975937] [] dump_stack+0x78/0xb8 [ 44.980999] [] __report_bad_irq+0x44/0x108 [ 44.986662] [] note_interrupt+0x248/0x2a0 [ 44.992240] [] handle_irq_event_percpu+0x144/0x200 [ 44.998598] [] handle_irq_event+0x54/0x90 [ 45.004176] [] handle_level_irq+0xd0/0x148 [ 45.009839] [] generic_handle_irq+0x34/0x50 [ 45.015589] [] do_IRQ+0x18/0x30 [ 45.020301] [] plat_irq_dispatch+0x74/0xb8 [ 45.025958] [ 45.027451] handlers: [ 45.029731] [] cvm_oct_rgmii_rml_interrupt [ 45.035397] Disabling IRQ #117 [ 45.038742] Port 0 receive error code 13, packet dropped [ 46.324719] eth0: Link down [ 48.324733] eth0: 1000 Mbps Full duplex, port 0, queue 0 Reported-by: "Jason A. Donenfeld" Signed-off-by: Aaro Koskinen Acked-by: David Daney Acked-by: Jason A. Donenfeld Signed-off-by: Greg Kroah-Hartman --- drivers/staging/octeon/ethernet-rgmii.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/staging/octeon/ethernet-rgmii.c b/drivers/staging/octeon/ethernet-rgmii.c index d8f5f694ec35..ea53af30dfa7 100644 --- a/drivers/staging/octeon/ethernet-rgmii.c +++ b/drivers/staging/octeon/ethernet-rgmii.c @@ -373,9 +373,7 @@ int cvm_oct_rgmii_init(struct net_device *dev) * Enable interrupts on inband status changes * for this port. */ - gmx_rx_int_en.u64 = - cvmx_read_csr(CVMX_GMXX_RXX_INT_EN - (index, interface)); + gmx_rx_int_en.u64 = 0; gmx_rx_int_en.s.phy_dupx = 1; gmx_rx_int_en.s.phy_link = 1; gmx_rx_int_en.s.phy_spd = 1; From f0f65a95de2840db3fa61c953dca267e7b773168 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 12 Sep 2013 15:41:31 -0700 Subject: [PATCH 210/350] Revert "staging: zram: Add auto loading of module if user opens /dev/zram." This reverts commit c70bda992c12e593e411c02a52e4bd6985407539. It's incorrect, Kay writes: Please just remove it. "devname" is meant to be used for single-instance devices with a static dev_t, never for things like zramX. It will not do anything useful here, it does nothing really without a statically assigned dev_t, and it should not be used for devices of this kind anyway. Reported-by: Tom Gundersen Reported-by: Kay Sievers Cc: Minchan Kim Cc: Konrad Rzeszutek Wilk Signed-off-by: Greg Kroah-Hartman --- drivers/staging/zram/zram_drv.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c index 91d94b564433..2c4ed52ca849 100644 --- a/drivers/staging/zram/zram_drv.c +++ b/drivers/staging/zram/zram_drv.c @@ -981,4 +981,3 @@ MODULE_PARM_DESC(num_devices, "Number of zram devices"); MODULE_LICENSE("Dual BSD/GPL"); MODULE_AUTHOR("Nitin Gupta "); MODULE_DESCRIPTION("Compressed RAM Block Device"); -MODULE_ALIAS("devname:zram"); From 16f1eeb660bd2bfd223704ee6350706b39c55a7a Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Sun, 8 Sep 2013 18:03:00 -0700 Subject: [PATCH 211/350] staging: Disable lustre file system for MIPS, SH, and XTENSA mips allmodconfig fails with ERROR: "copy_from_user_page" [drivers/staging/lustre/lustre/libcfs/libcfs.ko] undefined! which is due to LUSTRE using copy_from_user_page which is not exported by any architecture. Unfortunately, LUSTRE can only be built as module, so there is no easy fix. MIPS, SH, and optionally XTENSA implement copy_from_user_page as unexported functions. Disable LUSTRE for those. Cc: Peng Tao Signed-off-by: Guenter Roeck Signed-off-by: Greg Kroah-Hartman --- drivers/staging/lustre/lustre/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/lustre/lustre/Kconfig b/drivers/staging/lustre/lustre/Kconfig index e44965bdaac3..2156a44d0740 100644 --- a/drivers/staging/lustre/lustre/Kconfig +++ b/drivers/staging/lustre/lustre/Kconfig @@ -1,6 +1,6 @@ config LUSTRE_FS tristate "Lustre file system client support" - depends on INET && m + depends on INET && m && !MIPS && !XTENSA && !SUPERH select LNET select CRYPTO select CRYPTO_CRC32 From df80fb632e488e4e1e62f89e5019ee0f57ffaaed Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Sat, 31 Aug 2013 18:17:58 -0500 Subject: [PATCH 212/350] staging: r8188eu: Fix Smatch off-by-one warning in hal/rtl8188e_hal_init.c Smatch reports the following warning: "drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c:2008 Hal_ReadPowerValueFromPROM_8188E() error: buffer overflow 'pwrInfo24G->IndexBW40_Base[rfPath]' 5 <= 5" drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c 2005 /* 2.4G default value */ 2006 for (group = 0; group < MAX_CHNL_GROUP_24G; group++) { 2007 pwrInfo24G->IndexCCK_Base[rfPath][group] = EEPROM_DEFAULT_24G_INDEX; 2008 pwrInfo24G->IndexBW40_Base[rfPath][group] = EEPROM_DEFAULT_24G_INDEX; The reason is that IndexCCK_Base[] has MAX_CHNL_GROUP_24G elements, but IndexBW40_Base is smaller by 1. Make them both have MAX_CHNL_GROUP_24G elements. Reported by: Dan Carpenter Signed-off-by: Larry Finger Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8188eu/include/rtl8188e_hal.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/rtl8188eu/include/rtl8188e_hal.h b/drivers/staging/rtl8188eu/include/rtl8188e_hal.h index 52b280165a92..555c801d2ded 100644 --- a/drivers/staging/rtl8188eu/include/rtl8188e_hal.h +++ b/drivers/staging/rtl8188eu/include/rtl8188e_hal.h @@ -188,7 +188,7 @@ enum ChannelPlan { struct txpowerinfo24g { u8 IndexCCK_Base[MAX_RF_PATH][MAX_CHNL_GROUP_24G]; - u8 IndexBW40_Base[MAX_RF_PATH][MAX_CHNL_GROUP_24G-1]; + u8 IndexBW40_Base[MAX_RF_PATH][MAX_CHNL_GROUP_24G]; /* If only one tx, only BW20 and OFDM are used. */ s8 CCK_Diff[MAX_RF_PATH][MAX_TX_COUNT]; s8 OFDM_Diff[MAX_RF_PATH][MAX_TX_COUNT]; From 70f1a6d65df3f6bd18269c6e32547a59523430ac Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Sat, 31 Aug 2013 18:18:00 -0500 Subject: [PATCH 213/350] staging: r8188eu: Fix smatch error in core/rtw_mlme_ext.c Smatch reports the following warning: "drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:8328 mlme_evt_hdl() error: buffer overflow 'wlanevents' 24 <= 24" 8321 /* checking if event code is valid */ 8322 if (evt_code >= MAX_C2HEVT) { ^^^^^^^^^^^^^^^^^^^^^^ 8323 RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_, ("\nEvent Code(%d) mismatch!\n", evt_code)); 8324 goto _abort_event_; 8325 } 8326 8327 /* checking if event size match the event parm size */ 8328 if ((wlanevents[evt_code].parmsize != 0) && ^^^^^^^^^^^^^^^^^^^^ 8329 (wlanevents[evt_code].parmsize != evt_sz)) { 8330 RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_, 8331 ("\nEvent(%d) Parm Size mismatch (%d vs %d)!\n", 8332 evt_code, wlanevents[evt_code].parmsize, evt_sz)); 8333 goto _abort_event_; 8334 } This warning results because the number of items in "enum rtw_c2h_event", which determines the value of MAX_C2HEVT, is one more than in "struct wlanevents". Adding an extra dummy event to the latter fixes the problem. Reported-by: Dan Carpenter Signed-off-by: Larry Finger Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8188eu/include/rtw_mlme_ext.h | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h b/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h index a96b018e5e6a..853ab80a2b86 100644 --- a/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h +++ b/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h @@ -870,6 +870,7 @@ static struct fwevent wlanevents[] = { {0, NULL}, {0, NULL}, {0, &rtw_cpwm_event_callback}, + {0, NULL}, }; #endif/* _RTL_MLME_EXT_C_ */ From 8429bf1a046b31611c17005aba8967ab20cedabd Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Sat, 31 Aug 2013 18:17:59 -0500 Subject: [PATCH 214/350] staging: r8188eu: Fix smatch warning in core/rtw_ieee80211. Smatch shows the following warning: drivers/staging/rtl8188eu/core/rtw_ieee80211.c:161 rtw_set_ie() info: ignoring unreachable code. The cause is a module exit tracing statement after a return. Signed-off-by: Larry Finger Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8188eu/core/rtw_ieee80211.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/rtl8188eu/core/rtw_ieee80211.c b/drivers/staging/rtl8188eu/core/rtw_ieee80211.c index 3605c5da822d..6fc77428e83a 100644 --- a/drivers/staging/rtl8188eu/core/rtw_ieee80211.c +++ b/drivers/staging/rtl8188eu/core/rtw_ieee80211.c @@ -157,8 +157,8 @@ _func_enter_; *frlen = *frlen + (len + 2); - return pbuf + len + 2; _func_exit_; + return pbuf + len + 2; } inline u8 *rtw_set_ie_ch_switch (u8 *buf, u32 *buf_len, u8 ch_switch_mode, From a224cd7a282acb6dcea0e3e8ee7c3933c84f193b Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Wed, 4 Sep 2013 15:56:07 -0500 Subject: [PATCH 215/350] staging: r8188eu: Adjust RX gain In some circumstances, the performance of this driver is highly degraded, and ifconfig reports large numbers of dropped packets. By increasing the maximum RX gain from 0x3e to 0x4e, performance is greatly improved. Signed-off-by: Larry Finger Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8188eu/include/odm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/rtl8188eu/include/odm.h b/drivers/staging/rtl8188eu/include/odm.h index 2bfe72841921..4787bacdcad8 100644 --- a/drivers/staging/rtl8188eu/include/odm.h +++ b/drivers/staging/rtl8188eu/include/odm.h @@ -1010,7 +1010,7 @@ enum dm_dig_op { #define DM_false_ALARM_THRESH_LOW 400 #define DM_false_ALARM_THRESH_HIGH 1000 -#define DM_DIG_MAX_NIC 0x3e +#define DM_DIG_MAX_NIC 0x4e #define DM_DIG_MIN_NIC 0x1e /* 0x22/0x1c */ #define DM_DIG_MAX_AP 0x32 From 650433b8b1a4a4a46250ad0c8f68b2e47671914d Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Sun, 1 Sep 2013 20:18:49 +0100 Subject: [PATCH 216/350] Staging: comedi: Fix dependencies for drivers misclassified as PCI The Fastwel UNIOxx-5 is a PC/104 board, so put COMEDI_UNIOXX5 under COMEDI_ISA_DRIVERS. The DIL/Net-PC 1486 is a 486 system, so put COMEDI_SSV_DNP under COMEDI_MISC_DRIVERS and add a dependency on X86_32 || COMPILE_TEST. Reviewed-by: Ian Abbott Signed-off-by: Ben Hutchings Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/Kconfig | 33 +++++++++++++++++---------------- 1 file changed, 17 insertions(+), 16 deletions(-) diff --git a/drivers/staging/comedi/Kconfig b/drivers/staging/comedi/Kconfig index a84aab47a113..f73287eab373 100644 --- a/drivers/staging/comedi/Kconfig +++ b/drivers/staging/comedi/Kconfig @@ -96,6 +96,15 @@ config COMEDI_SKEL To compile this driver as a module, choose M here: the module will be called skel. +config COMEDI_SSV_DNP + tristate "SSV Embedded Systems DIL/Net-PC support" + depends on X86_32 || COMPILE_TEST + ---help--- + Enable support for SSV Embedded Systems DIL/Net-PC + + To compile this driver as a module, choose M here: the module will be + called ssv_dnp. + endif # COMEDI_MISC_DRIVERS menuconfig COMEDI_ISA_DRIVERS @@ -386,6 +395,14 @@ config COMEDI_DMM32AT To compile this driver as a module, choose M here: the module will be called dmm32at. +config COMEDI_UNIOXX5 + tristate "Fastwel UNIOxx-5 analog and digital io board support" + ---help--- + Enable support for Fastwel UNIOxx-5 (analog and digital i/o) boards + + To compile this driver as a module, choose M here: the module will be + called unioxx5. + config COMEDI_FL512 tristate "FL512 ISA card support" ---help--- @@ -855,14 +872,6 @@ config COMEDI_DYNA_PCI10XX To compile this driver as a module, choose M here: the module will be called dyna_pci10xx. -config COMEDI_UNIOXX5 - tristate "Fastwel UNIOxx-5 analog and digital io board support" - ---help--- - Enable support for Fastwel UNIOxx-5 (analog and digital i/o) boards - - To compile this driver as a module, choose M here: the module will be - called unioxx5. - config COMEDI_GSC_HPDI tristate "General Standards PCI-HPDI32 / PMC-HPDI32 support" select COMEDI_FC @@ -1085,14 +1094,6 @@ config COMEDI_S626 To compile this driver as a module, choose M here: the module will be called s626. -config COMEDI_SSV_DNP - tristate "SSV Embedded Systems DIL/Net-PC support" - ---help--- - Enable support for SSV Embedded Systems DIL/Net-PC - - To compile this driver as a module, choose M here: the module will be - called ssv_dnp. - config COMEDI_MITE depends on HAS_DMA tristate From c3cb718acc17f8e0d6b4b8d1f8ca9a20d1999159 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 13 Sep 2013 11:07:13 +0300 Subject: [PATCH 217/350] staging: line6: add bounds check in snd_toneport_source_put() "source" comes from the user in snd_ctl_elem_write() so it needs to be checked. Signed-off-by: Dan Carpenter Reviewed-by: Stefan Hajnoczi Signed-off-by: Greg Kroah-Hartman --- drivers/staging/line6/toneport.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/staging/line6/toneport.c b/drivers/staging/line6/toneport.c index 2f44d56700af..776d3632dc7d 100644 --- a/drivers/staging/line6/toneport.c +++ b/drivers/staging/line6/toneport.c @@ -244,13 +244,17 @@ static int snd_toneport_source_put(struct snd_kcontrol *kcontrol, struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); struct usb_line6_toneport *toneport = (struct usb_line6_toneport *)line6pcm->line6; + unsigned int source; - if (ucontrol->value.enumerated.item[0] == toneport->source) + source = ucontrol->value.enumerated.item[0]; + if (source >= ARRAY_SIZE(toneport_source_info)) + return -EINVAL; + if (source == toneport->source) return 0; - toneport->source = ucontrol->value.enumerated.item[0]; + toneport->source = source; toneport_send_cmd(toneport->line6.usbdev, - toneport_source_info[toneport->source].code, 0x0000); + toneport_source_info[source].code, 0x0000); return 1; } From 2389df458b9e8222ef54fbb6e7023ead84b87a5c Mon Sep 17 00:00:00 2001 From: Alexey Khoroshilov Date: Wed, 24 Jul 2013 00:20:17 +0400 Subject: [PATCH 218/350] usb: gadget: mv_u3d_core: fix violation of locking discipline in mv_u3d_ep_disable() mv_u3d_nuke() expects to be calles with ep->u3d->lock held, because mv_u3d_done() does. But mv_u3d_ep_disable() calls it without lock that can lead to unpleasant consequences. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov Signed-off-by: Felipe Balbi --- drivers/usb/gadget/mv_u3d_core.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/gadget/mv_u3d_core.c b/drivers/usb/gadget/mv_u3d_core.c index bbb6e98c4384..561b30efb8ee 100644 --- a/drivers/usb/gadget/mv_u3d_core.c +++ b/drivers/usb/gadget/mv_u3d_core.c @@ -645,6 +645,7 @@ static int mv_u3d_ep_disable(struct usb_ep *_ep) struct mv_u3d_ep *ep; struct mv_u3d_ep_context *ep_context; u32 epxcr, direction; + unsigned long flags; if (!_ep) return -EINVAL; @@ -661,7 +662,9 @@ static int mv_u3d_ep_disable(struct usb_ep *_ep) direction = mv_u3d_ep_dir(ep); /* nuke all pending requests (does flush) */ + spin_lock_irqsave(&u3d->lock, flags); mv_u3d_nuke(ep, -ESHUTDOWN); + spin_unlock_irqrestore(&u3d->lock, flags); /* Disable the endpoint for Rx or Tx and reset the endpoint type */ if (direction == MV_U3D_EP_DIR_OUT) { From 5f5610f69be3a925b1f79af27150bb7377bc9ad6 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Tue, 30 Jul 2013 15:18:15 -0400 Subject: [PATCH 219/350] usb: gadget: fix a bug and a WARN_ON in dummy-hcd This patch fixes a NULL pointer dereference and a WARN_ON in dummy-hcd. These things were the result of moving to the UDC core framework, and possibly of changes to that framework. Now unloading a gadget driver causes the UDC to be stopped after the gadget driver is unbound, not before. Therefore the "driver" argument to dummy_udc_stop() can be NULL, so we must not try to print the driver's name without checking first. Also, the UDC framework automatically unregisters the gadget when the UDC is deleted. Therefore a sysfs attribute file attached to the gadget must be removed before the UDC is deleted, not after. Signed-off-by: Alan Stern CC: Signed-off-by: Felipe Balbi --- drivers/usb/gadget/dummy_hcd.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index 06ecd08fd57a..b8a2376971a4 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -923,8 +923,9 @@ static int dummy_udc_stop(struct usb_gadget *g, struct dummy_hcd *dum_hcd = gadget_to_dummy_hcd(g); struct dummy *dum = dum_hcd->dum; - dev_dbg(udc_dev(dum), "unregister gadget driver '%s'\n", - driver->driver.name); + if (driver) + dev_dbg(udc_dev(dum), "unregister gadget driver '%s'\n", + driver->driver.name); dum->driver = NULL; @@ -1000,8 +1001,8 @@ static int dummy_udc_remove(struct platform_device *pdev) { struct dummy *dum = platform_get_drvdata(pdev); - usb_del_gadget_udc(&dum->gadget); device_remove_file(&dum->gadget.dev, &dev_attr_function); + usb_del_gadget_udc(&dum->gadget); return 0; } From d2ff405960a023a110fd5a6e82ba19d850d94db4 Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Thu, 1 Aug 2013 16:07:48 +0200 Subject: [PATCH 220/350] usb: gadget: cdc2: fix conversion to new interface of f_ecm This fixes commit a38a275030086d95306555e544fc7c0e65ccd00e (usb: gadget: cdc2: convert to new interface of f_ecm) The invocation of usb_get_function_instance() is in cdc_bind() and should not be repeated in cdc_do_config(). Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Signed-off-by: Felipe Balbi --- drivers/usb/gadget/cdc2.c | 19 +------------------ 1 file changed, 1 insertion(+), 18 deletions(-) diff --git a/drivers/usb/gadget/cdc2.c b/drivers/usb/gadget/cdc2.c index 5a5acf22c694..e126b6b248e6 100644 --- a/drivers/usb/gadget/cdc2.c +++ b/drivers/usb/gadget/cdc2.c @@ -113,12 +113,6 @@ static int __init cdc_do_config(struct usb_configuration *c) c->bmAttributes |= USB_CONFIG_ATT_WAKEUP; } - fi_ecm = usb_get_function_instance("ecm"); - if (IS_ERR(fi_ecm)) { - status = PTR_ERR(fi_ecm); - goto err_func_ecm; - } - f_ecm = usb_get_function(fi_ecm); if (IS_ERR(f_ecm)) { status = PTR_ERR(f_ecm); @@ -129,35 +123,24 @@ static int __init cdc_do_config(struct usb_configuration *c) if (status) goto err_add_ecm; - fi_serial = usb_get_function_instance("acm"); - if (IS_ERR(fi_serial)) { - status = PTR_ERR(fi_serial); - goto err_get_acm; - } - f_acm = usb_get_function(fi_serial); if (IS_ERR(f_acm)) { status = PTR_ERR(f_acm); - goto err_func_acm; + goto err_get_acm; } status = usb_add_function(c, f_acm); if (status) goto err_add_acm; - return 0; err_add_acm: usb_put_function(f_acm); -err_func_acm: - usb_put_function_instance(fi_serial); err_get_acm: usb_remove_function(c, f_ecm); err_add_ecm: usb_put_function(f_ecm); err_get_ecm: - usb_put_function_instance(fi_ecm); -err_func_ecm: return status; } From ff522058bd717506b2fa066fa564657f2b86477e Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Tue, 17 Sep 2013 12:44:31 +0200 Subject: [PATCH 221/350] MIPS: Fix accessing to per-cpu data when flushing the cache This fixes the following issue BUG: using smp_processor_id() in preemptible [00000000] code: kjournald/1761 caller is blast_dcache32+0x30/0x254 Call Trace: [<8047f02c>] dump_stack+0x8/0x34 [<802e7e40>] debug_smp_processor_id+0xe0/0xf0 [<80114d94>] blast_dcache32+0x30/0x254 [<80118484>] r4k_dma_cache_wback_inv+0x200/0x288 [<80110ff0>] mips_dma_map_sg+0x108/0x180 [<80355098>] ide_dma_prepare+0xf0/0x1b8 [<8034eaa4>] do_rw_taskfile+0x1e8/0x33c [<8035951c>] ide_do_rw_disk+0x298/0x3e4 [<8034a3c4>] do_ide_request+0x2e0/0x704 [<802bb0dc>] __blk_run_queue+0x44/0x64 [<802be000>] queue_unplugged.isra.36+0x1c/0x54 [<802beb94>] blk_flush_plug_list+0x18c/0x24c [<802bec6c>] blk_finish_plug+0x18/0x48 [<8026554c>] journal_commit_transaction+0x3b8/0x151c [<80269648>] kjournald+0xec/0x238 [<8014ac00>] kthread+0xb8/0xc0 [<8010268c>] ret_from_kernel_thread+0x14/0x1c Caches in most systems are identical - but not always, so we can't avoid the use of smp_call_function() by just looking at the boot CPU's data, have to fiddle with preemption instead. Signed-off-by: Ralf Baechle Cc: Markos Chandras Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5835 --- arch/mips/mm/c-r4k.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index f749f687ee87..40dced23e768 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include #include @@ -601,6 +602,7 @@ static void r4k_dma_cache_wback_inv(unsigned long addr, unsigned long size) /* Catch bad driver code */ BUG_ON(size == 0); + preempt_disable(); if (cpu_has_inclusive_pcaches) { if (size >= scache_size) r4k_blast_scache(); @@ -621,6 +623,7 @@ static void r4k_dma_cache_wback_inv(unsigned long addr, unsigned long size) R4600_HIT_CACHEOP_WAR_IMPL; blast_dcache_range(addr, addr + size); } + preempt_enable(); bc_wback_inv(addr, size); __sync(); @@ -631,6 +634,7 @@ static void r4k_dma_cache_inv(unsigned long addr, unsigned long size) /* Catch bad driver code */ BUG_ON(size == 0); + preempt_disable(); if (cpu_has_inclusive_pcaches) { if (size >= scache_size) r4k_blast_scache(); @@ -655,6 +659,7 @@ static void r4k_dma_cache_inv(unsigned long addr, unsigned long size) R4600_HIT_CACHEOP_WAR_IMPL; blast_inv_dcache_range(addr, addr + size); } + preempt_enable(); bc_inv(addr, size); __sync(); From b62cd96de3161dfb125a769030eec35a4cab3d3a Mon Sep 17 00:00:00 2001 From: Heikki Krogerus Date: Tue, 17 Sep 2013 10:38:13 +0300 Subject: [PATCH 222/350] usb: dwc3: pci: add support for BayTrail Add PCI id for Intel BayTrail. Signed-off-by: Heikki Krogerus Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/dwc3-pci.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index 9b138129e856..997ebe420bc9 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -28,6 +28,7 @@ /* FIXME define these in */ #define PCI_VENDOR_ID_SYNOPSYS 0x16c3 #define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd +#define PCI_DEVICE_ID_INTEL_BYT 0x0f37 struct dwc3_pci { struct device *dev; @@ -187,6 +188,7 @@ static DEFINE_PCI_DEVICE_TABLE(dwc3_pci_id_table) = { PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3), }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT), }, { } /* Terminating Entry */ }; MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table); From 780cc0f37071f153c912dfcfe974c728314956f9 Mon Sep 17 00:00:00 2001 From: Chen Gang Date: Mon, 2 Sep 2013 18:14:42 +0800 Subject: [PATCH 223/350] usb: gadget: add '__ref' for rndis_config_register() and cdc_config_register() They are only called by '__ref' function multi_bind(), and they will call '__init' functions, so recommend to let them '__ref' too. The related warnings: WARNING: drivers/usb/gadget/g_multi.o(.text+0xded6): Section mismatch in reference from the variable .LM2921 to the variable .init.text:_rndis_do_config The function .LM2921() references the variable __init _rndis_do_config. This is often because .LM2921 lacks a __init annotation or the annotation of _rndis_do_config is wrong. WARNING: drivers/usb/gadget/g_multi.o(.text+0xdf16): Section mismatch in reference from the variable .LM2953 to the variable .init.text:_cdc_do_config The function .LM2953() references the variable __init _cdc_do_config. This is often because .LM2953 lacks a __init annotation or the annotation of _cdc_do_config is wrong. Signed-off-by: Chen Gang Signed-off-by: Felipe Balbi --- drivers/usb/gadget/multi.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c index 2a1ebefd8f9e..23393254a8a3 100644 --- a/drivers/usb/gadget/multi.c +++ b/drivers/usb/gadget/multi.c @@ -179,7 +179,7 @@ err_conf: return ret; } -static int rndis_config_register(struct usb_composite_dev *cdev) +static __ref int rndis_config_register(struct usb_composite_dev *cdev) { static struct usb_configuration config = { .bConfigurationValue = MULTI_RNDIS_CONFIG_NUM, @@ -194,7 +194,7 @@ static int rndis_config_register(struct usb_composite_dev *cdev) #else -static int rndis_config_register(struct usb_composite_dev *cdev) +static __ref int rndis_config_register(struct usb_composite_dev *cdev) { return 0; } @@ -241,7 +241,7 @@ err_conf: return ret; } -static int cdc_config_register(struct usb_composite_dev *cdev) +static __ref int cdc_config_register(struct usb_composite_dev *cdev) { static struct usb_configuration config = { .bConfigurationValue = MULTI_CDC_CONFIG_NUM, @@ -256,7 +256,7 @@ static int cdc_config_register(struct usb_composite_dev *cdev) #else -static int cdc_config_register(struct usb_composite_dev *cdev) +static __ref int cdc_config_register(struct usb_composite_dev *cdev) { return 0; } From bbaa7c81e61e339fbc6aae2594c7ce8f54196fa7 Mon Sep 17 00:00:00 2001 From: Heikki Krogerus Date: Tue, 10 Sep 2013 16:37:51 +0300 Subject: [PATCH 224/350] usb: dwc3: remove extcon dependency It is required by the OMAP glue driver, but it already depends on it. The core driver should not depend on it. This will allow the use of the PCI glue driver again. Signed-off-by: Heikki Krogerus Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/Kconfig | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig index b870872e020f..70fc43027a5c 100644 --- a/drivers/usb/dwc3/Kconfig +++ b/drivers/usb/dwc3/Kconfig @@ -1,7 +1,6 @@ config USB_DWC3 tristate "DesignWare USB3 DRD Core Support" depends on (USB || USB_GADGET) && HAS_DMA - depends on EXTCON select USB_XHCI_PLATFORM if USB_SUPPORT && USB_XHCI_HCD help Say Y or M here if your system has a Dual Role SuperSpeed From e1f804676a95b9d5caaa3a822d90bc1101595468 Mon Sep 17 00:00:00 2001 From: David Cohen Date: Wed, 11 Sep 2013 17:42:47 -0700 Subject: [PATCH 225/350] usb: dwc3: gadget: avoid memory leak when failing to allocate all eps If dwc3_gadget_init_endpoint() fails after allocate some of the eps, we need to free their memory to avoid leak. Signed-off-by: David Cohen Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/gadget.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index f168eaebdef8..5452c0fce360 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2611,15 +2611,13 @@ int dwc3_gadget_init(struct dwc3 *dwc) ret = usb_add_gadget_udc(dwc->dev, &dwc->gadget); if (ret) { dev_err(dwc->dev, "failed to register udc\n"); - goto err5; + goto err4; } return 0; -err5: - dwc3_gadget_free_endpoints(dwc); - err4: + dwc3_gadget_free_endpoints(dwc); dma_free_coherent(dwc->dev, DWC3_EP0_BOUNCE_SIZE, dwc->ep0_bounce, dwc->ep0_bounce_addr); From 1b97be8ce4847be9cceb1f80c87868131e9cc8e7 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Mon, 16 Sep 2013 11:10:10 +0530 Subject: [PATCH 226/350] usb: phy: omap-usb3: Fix return value The function returns a pointer. Hence return NULL instead of 0. Signed-off-by: Sachin Kamat Signed-off-by: Felipe Balbi --- drivers/usb/phy/phy-omap-usb3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/phy/phy-omap-usb3.c b/drivers/usb/phy/phy-omap-usb3.c index fc15694d3031..4e8a0405f956 100644 --- a/drivers/usb/phy/phy-omap-usb3.c +++ b/drivers/usb/phy/phy-omap-usb3.c @@ -79,7 +79,7 @@ static struct usb_dpll_params *omap_usb3_get_dpll_params(unsigned long rate) return &dpll_map[i].params; } - return 0; + return NULL; } static int omap_usb3_suspend(struct usb_phy *x, int suspend) From 0f0392f245525cd0d477865e9f6b0ade52d2aa54 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Mon, 16 Sep 2013 11:44:45 +0530 Subject: [PATCH 227/350] usb: gadget: f_ecm: Staticize ecm_alloc 'ecm_alloc' is local to this file. Make it static. Signed-off-by: Sachin Kamat Signed-off-by: Felipe Balbi --- drivers/usb/gadget/f_ecm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/gadget/f_ecm.c b/drivers/usb/gadget/f_ecm.c index edab45da3741..8d9e6f7e8f1a 100644 --- a/drivers/usb/gadget/f_ecm.c +++ b/drivers/usb/gadget/f_ecm.c @@ -995,7 +995,7 @@ static void ecm_unbind(struct usb_configuration *c, struct usb_function *f) usb_ep_free_request(ecm->notify, ecm->notify_req); } -struct usb_function *ecm_alloc(struct usb_function_instance *fi) +static struct usb_function *ecm_alloc(struct usb_function_instance *fi) { struct f_ecm *ecm; struct f_ecm_opts *opts; From 5c18a3636f059ac8571179ff0239df3fb68649ee Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Mon, 16 Sep 2013 11:44:46 +0530 Subject: [PATCH 228/350] usb: gadget: f_eem: Staticize eem_alloc 'eem_alloc' is local to this file. Make it static. Signed-off-by: Sachin Kamat Signed-off-by: Felipe Balbi --- drivers/usb/gadget/f_eem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/gadget/f_eem.c b/drivers/usb/gadget/f_eem.c index d00392d879db..d61c11d765d0 100644 --- a/drivers/usb/gadget/f_eem.c +++ b/drivers/usb/gadget/f_eem.c @@ -624,7 +624,7 @@ static void eem_unbind(struct usb_configuration *c, struct usb_function *f) usb_free_all_descriptors(f); } -struct usb_function *eem_alloc(struct usb_function_instance *fi) +static struct usb_function *eem_alloc(struct usb_function_instance *fi) { struct f_eem *eem; struct f_eem_opts *opts; From 660479aad1cd9d862b640c9dd9b91858cbb712b2 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Mon, 16 Sep 2013 16:33:52 +0530 Subject: [PATCH 229/350] usb: host: fsl-mph-dr-of: Staticize local symbols Local symbols used in this file are made static. Signed-off-by: Sachin Kamat Cc: Anatolij Gustschin Signed-off-by: Felipe Balbi --- drivers/usb/host/fsl-mph-dr-of.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-of.c index 9e0020d9e4c8..abd5050a4899 100644 --- a/drivers/usb/host/fsl-mph-dr-of.c +++ b/drivers/usb/host/fsl-mph-dr-of.c @@ -24,7 +24,7 @@ struct fsl_usb2_dev_data { enum fsl_usb2_operating_modes op_mode; /* operating mode */ }; -struct fsl_usb2_dev_data dr_mode_data[] = { +static struct fsl_usb2_dev_data dr_mode_data[] = { { .dr_mode = "host", .drivers = { "fsl-ehci", NULL, NULL, }, @@ -42,7 +42,7 @@ struct fsl_usb2_dev_data dr_mode_data[] = { }, }; -struct fsl_usb2_dev_data *get_dr_mode_data(struct device_node *np) +static struct fsl_usb2_dev_data *get_dr_mode_data(struct device_node *np) { const unsigned char *prop; int i; @@ -75,7 +75,7 @@ static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type) return FSL_USB2_PHY_NONE; } -struct platform_device *fsl_usb2_device_register( +static struct platform_device *fsl_usb2_device_register( struct platform_device *ofdev, struct fsl_usb2_platform_data *pdata, const char *name, int id) From 7f2ccc8cb28cb3ec2f114486a3ccd57deae1560f Mon Sep 17 00:00:00 2001 From: Peter Oh Date: Mon, 16 Sep 2013 14:21:14 -0700 Subject: [PATCH 230/350] usb: gadget: f_mass_storage: reset endpoint driver data when disabled Gadgets endpoint driver data is a criteria to judge that whether the endpoints are in use or not. When gadget gets assigned an endpoint from endpoint list, they check its driver data if the driver data is NULL. If the driver data is not NULL then they regard it as in use. Therefore all of gadgets should reset their endpoints driver data to NULL as they are disabled. Otherwise it causes a leak of endpoint resource. Signed-off-by: Peter Oh Signed-off-by: Felipe Balbi --- drivers/usb/gadget/f_mass_storage.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c index 313b835eedfd..a01d7d38c016 100644 --- a/drivers/usb/gadget/f_mass_storage.c +++ b/drivers/usb/gadget/f_mass_storage.c @@ -2260,10 +2260,12 @@ reset: /* Disable the endpoints */ if (fsg->bulk_in_enabled) { usb_ep_disable(fsg->bulk_in); + fsg->bulk_in->driver_data = NULL; fsg->bulk_in_enabled = 0; } if (fsg->bulk_out_enabled) { usb_ep_disable(fsg->bulk_out); + fsg->bulk_out->driver_data = NULL; fsg->bulk_out_enabled = 0; } From 6cefc8ee768402db087adb4193c7919564e1ac1b Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 16 Sep 2013 14:22:04 +0200 Subject: [PATCH 231/350] ARM: ux500: disable outer cache debug This fixes a multiplatform regression on the Ux500. When compiling the Ux500 platforms in multiplatform configurations both PL310_ERRATA_588369 and PL310_ERRATA_727915 would crash the platform when trying to launch the init process. The Ux500 cannot access the debug registers of the PL310, it will just crash if you try this. So disable this by setting the debug callback to NULL when initializing the l2x0 on this platform. Cc: Lee Jones Signed-off-by: Linus Walleij Signed-off-by: Olof Johansson --- arch/arm/mach-ux500/cache-l2x0.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-ux500/cache-l2x0.c b/arch/arm/mach-ux500/cache-l2x0.c index 82ccf1d98735..264f894c0e3d 100644 --- a/arch/arm/mach-ux500/cache-l2x0.c +++ b/arch/arm/mach-ux500/cache-l2x0.c @@ -69,6 +69,7 @@ static int __init ux500_l2x0_init(void) * some SMI service available. */ outer_cache.disable = NULL; + outer_cache.set_debug = NULL; return 0; } From a0396b9bd5a4a7baf598b60d2ca53c605c440a42 Mon Sep 17 00:00:00 2001 From: Olof Johansson Date: Mon, 16 Sep 2013 09:01:24 -0700 Subject: [PATCH 232/350] ARM: multi_v7_defconfig: enable ARM_ATAG_DTB_COMPAT Without this, legacy platforms that can boot with a multiplatform kernel but that need the DTB to be appended, won't have a way to pass firmware-set bootargs to the kernel. This is needed to boot multi_v7_defconfig on snowball, for instance. Signed-off-by: Olof Johansson --- arch/arm/configs/multi_v7_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig index 6e572c64cf5a..aba4ec728651 100644 --- a/arch/arm/configs/multi_v7_defconfig +++ b/arch/arm/configs/multi_v7_defconfig @@ -46,6 +46,7 @@ CONFIG_ARCH_ZYNQ=y CONFIG_SMP=y CONFIG_HIGHPTE=y CONFIG_ARM_APPENDED_DTB=y +CONFIG_ARM_ATAG_DTB_COMPAT=y CONFIG_NET=y CONFIG_UNIX=y CONFIG_INET=y From ab5be58833455dd2f942b9e2e5fcc8d9b4c7c9e6 Mon Sep 17 00:00:00 2001 From: Ezequiel Garcia Date: Mon, 12 Aug 2013 14:14:46 -0300 Subject: [PATCH 233/350] mtd: nand: pxa3xx: Remove unneeded ifdef CONFIG_OF There's no need to enclose this code within idef CONFIG_OF, because the OF framework provides no-op stubs if CONFIG_OF=n. Cc: devicetree@vger.kernel.org Signed-off-by: Ezequiel Garcia Signed-off-by: Brian Norris Signed-off-by: Olof Johansson --- drivers/mtd/nand/pxa3xx_nand.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index 5db900d917f9..dd03dfdfb0d6 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -1236,7 +1236,6 @@ static int pxa3xx_nand_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_OF static struct of_device_id pxa3xx_nand_dt_ids[] = { { .compatible = "marvell,pxa3xx-nand", @@ -1284,12 +1283,6 @@ static int pxa3xx_nand_probe_dt(struct platform_device *pdev) return 0; } -#else -static inline int pxa3xx_nand_probe_dt(struct platform_device *pdev) -{ - return 0; -} -#endif static int pxa3xx_nand_probe(struct platform_device *pdev) { From c8c10253d8706be7ce8bc8197e385cb837eed5a0 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Thu, 12 Sep 2013 16:18:48 +0200 Subject: [PATCH 234/350] usb: s3c-hsotg: fix unregistration function After driver conversion to udc_start/udc_stop infrastructure (commit "usb:hsotg:samsung: Use new udc_start and udc_stop callbacks" f65f0f1098) the gadget unregistration function is almost always called with 'driver' parameter being NULL, what caused that the unregistration code has not been executed at all. This is a leftover from the earlier verison of this function (which used simple start/stop interface), where driver parameter was obligatory. This patch removes the NULL check for the 'driver' pointer and removes all dereferences of it. It also moves disabling voltage regulators out of the atomic context, because handling regulators (which are usually i2c devices) might require sleeping. Signed-off-by: Marek Szyprowski Signed-off-by: Robert Baldyga Signed-off-by: Kyungmin Park Signed-off-by: Felipe Balbi --- drivers/usb/gadget/s3c-hsotg.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index d69b36a99dbc..91b1263327b2 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -2962,9 +2962,6 @@ static int s3c_hsotg_udc_stop(struct usb_gadget *gadget, if (!hsotg) return -ENODEV; - if (!driver || driver != hsotg->driver || !driver->unbind) - return -EINVAL; - /* all endpoints should be shutdown */ for (ep = 0; ep < hsotg->num_of_eps; ep++) s3c_hsotg_ep_disable(&hsotg->eps[ep].ep); @@ -2972,15 +2969,15 @@ static int s3c_hsotg_udc_stop(struct usb_gadget *gadget, spin_lock_irqsave(&hsotg->lock, flags); s3c_hsotg_phy_disable(hsotg); - regulator_bulk_disable(ARRAY_SIZE(hsotg->supplies), hsotg->supplies); - hsotg->driver = NULL; + if (!driver) + hsotg->driver = NULL; + hsotg->gadget.speed = USB_SPEED_UNKNOWN; spin_unlock_irqrestore(&hsotg->lock, flags); - dev_info(hsotg->dev, "unregistered gadget driver '%s'\n", - driver->driver.name); + regulator_bulk_disable(ARRAY_SIZE(hsotg->supplies), hsotg->supplies); return 0; } From d3675e3a481d3320e214984a10577fe06518c5bf Mon Sep 17 00:00:00 2001 From: Chanho Park Date: Thu, 12 Sep 2013 16:18:49 +0200 Subject: [PATCH 235/350] usb: s3c-hsotg: do not disconnect gadget when receiving ErlySusp intr DWC2 databook indicates if the core sets "ErlySusp" bit, an idle state has been detected on the USB for 3 ms. This situation can be occurred when waiting a request from user daemon. So, we should keep the connection between udc and gadget even though this interrupt is occurred. Signed-off-by: Chanho Park Signed-off-by: Robert Baldyga Signed-off-by: Kyungmin Park Signed-off-by: Felipe Balbi --- drivers/usb/gadget/s3c-hsotg.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index 91b1263327b2..6bddf1aa2347 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -2475,8 +2475,6 @@ irq_retry: if (gintsts & GINTSTS_ErlySusp) { dev_dbg(hsotg->dev, "GINTSTS_ErlySusp\n"); writel(GINTSTS_ErlySusp, hsotg->regs + GINTSTS); - - s3c_hsotg_disconnect(hsotg); } /* From 0be9c7a89f75072e091cd079d76194aec8d1fb09 Mon Sep 17 00:00:00 2001 From: Gleb Natapov Date: Sun, 15 Sep 2013 11:07:23 +0300 Subject: [PATCH 236/350] KVM: VMX: set "blocked by NMI" flag if EPT violation happens during IRET from NMI Set "blocked by NMI" flag if EPT violation happens during IRET from NMI otherwise NMI can be called recursively causing stack corruption. Signed-off-by: Gleb Natapov --- arch/x86/kvm/vmx.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 48735936860c..a1216de9ffda 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -5339,6 +5339,15 @@ static int handle_ept_violation(struct kvm_vcpu *vcpu) return 0; } + /* + * EPT violation happened while executing iret from NMI, + * "blocked by NMI" bit has to be set before next VM entry. + * There are errata that may cause this bit to not be set: + * AAK134, BY25. + */ + if (exit_qualification & INTR_INFO_UNBLOCK_NMI) + vmcs_set_bits(GUEST_INTERRUPTIBILITY_INFO, GUEST_INTR_STATE_NMI); + gpa = vmcs_read64(GUEST_PHYSICAL_ADDRESS); trace_kvm_page_fault(gpa, exit_qualification); From 3b8d7321ed4b8511e17048303b806ffcc2806077 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 12 Sep 2013 13:58:42 -0700 Subject: [PATCH 237/350] Revert "USB: EHCI: support running URB giveback in tasklet context" This reverts commit 428aac8a81058e2303677a8fbf26670229e51d3a. This isn't quite ready for 3.12, we need some more EHCI driver changes that are just now showing up. So revert this for now, and queue it up later for 3.13. Reported-by: Alan Stern Cc: Ming Lei Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-fsl.c | 2 +- drivers/usb/host/ehci-grlib.c | 2 +- drivers/usb/host/ehci-hcd.c | 2 +- drivers/usb/host/ehci-mv.c | 2 +- drivers/usb/host/ehci-octeon.c | 2 +- drivers/usb/host/ehci-pmcmsp.c | 2 +- drivers/usb/host/ehci-ppc-of.c | 2 +- drivers/usb/host/ehci-ps3.c | 2 +- drivers/usb/host/ehci-q.c | 5 +++++ drivers/usb/host/ehci-sead3.c | 2 +- drivers/usb/host/ehci-sh.c | 2 +- drivers/usb/host/ehci-tilegx.c | 2 +- drivers/usb/host/ehci-w90x900.c | 2 +- drivers/usb/host/ehci-xilinx-of.c | 2 +- 14 files changed, 18 insertions(+), 13 deletions(-) diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index 947b009009f1..4449f565d6c6 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -669,7 +669,7 @@ static const struct hc_driver ehci_fsl_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_USB2 | HCD_MEMORY | HCD_BH, + .flags = HCD_USB2 | HCD_MEMORY, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-grlib.c b/drivers/usb/host/ehci-grlib.c index b52a66ce92e8..83ab51af250f 100644 --- a/drivers/usb/host/ehci-grlib.c +++ b/drivers/usb/host/ehci-grlib.c @@ -43,7 +43,7 @@ static const struct hc_driver ehci_grlib_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_USB2, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 5d6022f30ebe..86ab9fd9fe9e 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -1158,7 +1158,7 @@ static const struct hc_driver ehci_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_USB2, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c index 417c10da9450..35cdbd88bbbe 100644 --- a/drivers/usb/host/ehci-mv.c +++ b/drivers/usb/host/ehci-mv.c @@ -96,7 +96,7 @@ static const struct hc_driver mv_ehci_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_USB2, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-octeon.c b/drivers/usb/host/ehci-octeon.c index ab0397e4d8f3..45cc00158412 100644 --- a/drivers/usb/host/ehci-octeon.c +++ b/drivers/usb/host/ehci-octeon.c @@ -51,7 +51,7 @@ static const struct hc_driver ehci_octeon_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_USB2, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-pmcmsp.c b/drivers/usb/host/ehci-pmcmsp.c index 893b707f0000..601e208bd782 100644 --- a/drivers/usb/host/ehci-pmcmsp.c +++ b/drivers/usb/host/ehci-pmcmsp.c @@ -286,7 +286,7 @@ static const struct hc_driver ehci_msp_hc_driver = { #else .irq = ehci_irq, #endif - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_USB2, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-ppc-of.c b/drivers/usb/host/ehci-ppc-of.c index 6cc5567bf9c8..932293fa32de 100644 --- a/drivers/usb/host/ehci-ppc-of.c +++ b/drivers/usb/host/ehci-ppc-of.c @@ -28,7 +28,7 @@ static const struct hc_driver ehci_ppc_of_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_USB2, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c index 8188542ba17e..fd983771b025 100644 --- a/drivers/usb/host/ehci-ps3.c +++ b/drivers/usb/host/ehci-ps3.c @@ -71,7 +71,7 @@ static const struct hc_driver ps3_ehci_hc_driver = { .product_desc = "PS3 EHCI Host Controller", .hcd_priv_size = sizeof(struct ehci_hcd), .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_USB2, .reset = ps3_ehci_hc_reset, .start = ehci_run, .stop = ehci_stop, diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index e321804c3475..a7f776a13eb1 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -247,6 +247,8 @@ static int qtd_copy_status ( static void ehci_urb_done(struct ehci_hcd *ehci, struct urb *urb, int status) +__releases(ehci->lock) +__acquires(ehci->lock) { if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) { /* ... update hc-wide periodic stats */ @@ -272,8 +274,11 @@ ehci_urb_done(struct ehci_hcd *ehci, struct urb *urb, int status) urb->actual_length, urb->transfer_buffer_length); #endif + /* complete() can reenter this HCD */ usb_hcd_unlink_urb_from_ep(ehci_to_hcd(ehci), urb); + spin_unlock (&ehci->lock); usb_hcd_giveback_urb(ehci_to_hcd(ehci), urb, status); + spin_lock (&ehci->lock); } static int qh_schedule (struct ehci_hcd *ehci, struct ehci_qh *qh); diff --git a/drivers/usb/host/ehci-sead3.c b/drivers/usb/host/ehci-sead3.c index 8a734498079b..b2de52d39614 100644 --- a/drivers/usb/host/ehci-sead3.c +++ b/drivers/usb/host/ehci-sead3.c @@ -55,7 +55,7 @@ const struct hc_driver ehci_sead3_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_USB2, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-sh.c b/drivers/usb/host/ehci-sh.c index dc899eb2b861..93e59a13bc1f 100644 --- a/drivers/usb/host/ehci-sh.c +++ b/drivers/usb/host/ehci-sh.c @@ -36,7 +36,7 @@ static const struct hc_driver ehci_sh_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_USB2 | HCD_MEMORY | HCD_BH, + .flags = HCD_USB2 | HCD_MEMORY, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-tilegx.c b/drivers/usb/host/ehci-tilegx.c index 67026ffbf9a8..cca4be90a864 100644 --- a/drivers/usb/host/ehci-tilegx.c +++ b/drivers/usb/host/ehci-tilegx.c @@ -61,7 +61,7 @@ static const struct hc_driver ehci_tilegx_hc_driver = { * Generic hardware linkage. */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_USB2, /* * Basic lifecycle operations. diff --git a/drivers/usb/host/ehci-w90x900.c b/drivers/usb/host/ehci-w90x900.c index 1c370dfbee0d..59e0e24c753f 100644 --- a/drivers/usb/host/ehci-w90x900.c +++ b/drivers/usb/host/ehci-w90x900.c @@ -108,7 +108,7 @@ static const struct hc_driver ehci_w90x900_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_USB2|HCD_MEMORY|HCD_BH, + .flags = HCD_USB2|HCD_MEMORY, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-xilinx-of.c b/drivers/usb/host/ehci-xilinx-of.c index 95979f9f4381..eba962e6ebfb 100644 --- a/drivers/usb/host/ehci-xilinx-of.c +++ b/drivers/usb/host/ehci-xilinx-of.c @@ -79,7 +79,7 @@ static const struct hc_driver ehci_xilinx_of_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, + .flags = HCD_MEMORY | HCD_USB2, /* * basic lifecycle operations From dc298a218b910fa7b8c900374ea1763b73e69ee2 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Tue, 3 Sep 2013 17:18:38 -0400 Subject: [PATCH 238/350] USB: fix typo in usb serial simple driver Kconfig Signed-off-by: Dave Jones Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig index c454bfa22a10..ddb9c51f2c99 100644 --- a/drivers/usb/serial/Kconfig +++ b/drivers/usb/serial/Kconfig @@ -60,7 +60,7 @@ config USB_SERIAL_SIMPLE - Suunto ANT+ USB device. - Fundamental Software dongle. - HP4x calculators - - a number of Motoroloa phones + - a number of Motorola phones - Siemens USB/MPI adapter. - ViVOtech ViVOpay USB device. - Infineon Modem Flashloader USB interface From dfe2902032ac9f8899214767dc5bc172254838ad Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Tue, 3 Sep 2013 17:46:26 -0400 Subject: [PATCH 239/350] USB: Faraday fotg210: fix email addresses Update the MODULE_AUTHOR field of the Faraday OTG drivers to reflect current maintainers email address. Signed-off-by: Dave Jones Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/fotg210-udc.c | 2 +- drivers/usb/gadget/fusb300_udc.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/gadget/fotg210-udc.c b/drivers/usb/gadget/fotg210-udc.c index 32db2eee2d87..bbbfd1948778 100644 --- a/drivers/usb/gadget/fotg210-udc.c +++ b/drivers/usb/gadget/fotg210-udc.c @@ -1214,6 +1214,6 @@ static struct platform_driver fotg210_driver = { module_platform_driver(fotg210_driver); -MODULE_AUTHOR("Yuan-Hsin Chen "); +MODULE_AUTHOR("Yuan-Hsin Chen, Feng-Hsin Chiang "); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION(DRIVER_DESC); diff --git a/drivers/usb/gadget/fusb300_udc.c b/drivers/usb/gadget/fusb300_udc.c index f1dd6daabe21..b278abe52453 100644 --- a/drivers/usb/gadget/fusb300_udc.c +++ b/drivers/usb/gadget/fusb300_udc.c @@ -22,7 +22,7 @@ MODULE_DESCRIPTION("FUSB300 USB gadget driver"); MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Yuan Hsin Chen "); +MODULE_AUTHOR("Yuan-Hsin Chen, Feng-Hsin Chiang "); MODULE_ALIAS("platform:fusb300_udc"); #define DRIVER_VERSION "20 October 2010" From 7d26a78f62ff4fb08bc5ba740a8af4aa7ac67da4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Frank=20Sch=C3=A4fer?= Date: Sat, 14 Sep 2013 15:36:48 +0200 Subject: [PATCH 240/350] USB: pl2303: distinguish between original and cloned HX chips MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit According to Prolific, several (unauthorized) cheap and less functional clones of the PL2303HX chip are in circulation. [1] I've had the chance to test such a cloned device and it turned out that it doesn't support any baud rates above 115200 baud (original: 6 Mbaud) It also doesn't support the divisior based baud rate encoding method, so no continuous baud rate adjustment is possible. Nevertheless, these devices have been working (unintentionally) with the driver up to commit 61fa8d694b ("pl2303: also use the divisor based baud rate encoding method for baud rates < 115200 with HX chips"), and this commit broke support for them. Fortunately, it is pretty simple to distinguish between the original and the cloned HX chips, so I've added a check and an extra chip type to keep the clones working. The same check is used by the latest Prolific Windows driver, so it should be solid. [1] http://www.prolific.com.tw/US/ShowProduct.aspx?p_id=225&pcid=41 Signed-off-by: Frank Schäfer Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/pl2303.c | 43 +++++++++++++++++++++++++++---------- 1 file changed, 32 insertions(+), 11 deletions(-) diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index e7a84f0f5179..bedf8e47713b 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -139,6 +139,7 @@ enum pl2303_type { HX_TA, /* HX(A) / X(A) / TA version */ /* TODO: improve */ HXD_EA_RA_SA, /* HXD / EA / RA / SA version */ /* TODO: improve */ TB, /* TB version */ + HX_CLONE, /* Cheap and less functional clone of the HX chip */ }; /* * NOTE: don't know the difference between type 0 and type 1, @@ -206,8 +207,23 @@ static int pl2303_startup(struct usb_serial *serial) * the device descriptors of the X/HX, HXD, EA, RA, SA, TA, TB */ if (le16_to_cpu(serial->dev->descriptor.bcdDevice) == 0x300) { - type = HX_TA; - type_str = "X/HX/TA"; + /* Check if the device is a clone */ + pl2303_vendor_read(0x9494, 0, serial, buf); + /* + * NOTE: Not sure if this read is really needed. + * The HX returns 0x00, the clone 0x02, but the Windows + * driver seems to ignore the value and continues. + */ + pl2303_vendor_write(0x0606, 0xaa, serial); + pl2303_vendor_read(0x8686, 0, serial, buf); + if (buf[0] != 0xaa) { + type = HX_CLONE; + type_str = "X/HX clone (limited functionality)"; + } else { + type = HX_TA; + type_str = "X/HX/TA"; + } + pl2303_vendor_write(0x0606, 0x00, serial); } else if (le16_to_cpu(serial->dev->descriptor.bcdDevice) == 0x400) { type = HXD_EA_RA_SA; @@ -305,8 +321,9 @@ static int pl2303_baudrate_encode_direct(int baud, enum pl2303_type type, { /* * NOTE: Only the values defined in baud_sup are supported ! - * => if unsupported values are set, the PL2303 seems to - * use 9600 baud (at least my PL2303X always does) + * => if unsupported values are set, the PL2303 uses 9600 baud instead + * => HX clones just don't work at unsupported baud rates < 115200 baud, + * for baud rates > 115200 they run at 115200 baud */ const int baud_sup[] = { 75, 150, 300, 600, 1200, 1800, 2400, 3600, 4800, 7200, 9600, 14400, 19200, 28800, 38400, @@ -316,14 +333,14 @@ static int pl2303_baudrate_encode_direct(int baud, enum pl2303_type type, * NOTE: With the exception of type_0/1 devices, the following * additional baud rates are supported (tested with HX rev. 3A only): * 110*, 56000*, 128000, 134400, 161280, 201600, 256000*, 268800, - * 403200, 806400. (*: not HX) + * 403200, 806400. (*: not HX and HX clones) * * Maximum values: HXD, TB: 12000000; HX, TA: 6000000; - * type_0+1: 1228800; RA: 921600; SA: 115200 + * type_0+1: 1228800; RA: 921600; HX clones, SA: 115200 * * As long as we are not using this encoding method for anything else - * than the type_0+1 and HX chips, there is no point in complicating - * the code to support them. + * than the type_0+1, HX and HX clone chips, there is no point in + * complicating the code to support them. */ int i; @@ -347,6 +364,8 @@ static int pl2303_baudrate_encode_direct(int baud, enum pl2303_type type, baud = min_t(int, baud, 6000000); else if (type == type_0 || type == type_1) baud = min_t(int, baud, 1228800); + else if (type == HX_CLONE) + baud = min_t(int, baud, 115200); /* Direct (standard) baud rate encoding method */ put_unaligned_le32(baud, buf); @@ -359,7 +378,8 @@ static int pl2303_baudrate_encode_divisor(int baud, enum pl2303_type type, /* * Divisor based baud rate encoding method * - * NOTE: it's not clear if the type_0/1 chips support this method + * NOTE: HX clones do NOT support this method. + * It's not clear if the type_0/1 chips support it. * * divisor = 12MHz * 32 / baudrate = 2^A * B * @@ -452,7 +472,7 @@ static void pl2303_encode_baudrate(struct tty_struct *tty, * 1) Direct method: encodes the baud rate value directly * => supported by all chip types * 2) Divisor based method: encodes a divisor to a base value (12MHz*32) - * => supported by HX chips (and likely not by type_0/1 chips) + * => not supported by HX clones (and likely type_0/1 chips) * * NOTE: Although the divisor based baud rate encoding method is much * more flexible, some of the standard baud rate values can not be @@ -460,7 +480,7 @@ static void pl2303_encode_baudrate(struct tty_struct *tty, * the device likely uses the same baud rate generator for both methods * so that there is likley no difference. */ - if (type == type_0 || type == type_1) + if (type == type_0 || type == type_1 || type == HX_CLONE) baud = pl2303_baudrate_encode_direct(baud, type, buf); else baud = pl2303_baudrate_encode_divisor(baud, type, buf); @@ -813,6 +833,7 @@ static void pl2303_break_ctl(struct tty_struct *tty, int break_state) result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), BREAK_REQUEST, BREAK_REQUEST_TYPE, state, 0, NULL, 0, 100); + /* NOTE: HX clones don't support sending breaks, -EPIPE is returned */ if (result) dev_err(&port->dev, "error sending break = %d\n", result); } From 69f24d1784b631b81a54eb57c49bf46536dd2382 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Tue, 17 Sep 2013 10:25:47 +0200 Subject: [PATCH 241/350] MIPS: Optimize current_cpu_type() for better code. o Move current_cpu_type() to a separate header file o #ifdefing on supported CPU types lets modern GCC know that certain code in callers may be discarded ideally turning current_cpu_type() into a function returning a constant. o Use current_cpu_type() rather than direct access to struct cpuinfo_mips. Signed-off-by: Ralf Baechle Cc: Steven J. Hill Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5833/ --- arch/mips/cavium-octeon/csrc-octeon.c | 1 + arch/mips/dec/prom/init.c | 1 + arch/mips/include/asm/cpu-features.h | 6 - arch/mips/include/asm/cpu-type.h | 203 ++++++++++++++++++ .../asm/mach-ip22/cpu-feature-overrides.h | 2 + .../asm/mach-ip27/cpu-feature-overrides.h | 2 + .../asm/mach-ip28/cpu-feature-overrides.h | 2 + arch/mips/kernel/cpu-probe.c | 3 +- arch/mips/kernel/idle.c | 3 +- arch/mips/kernel/time.c | 1 + arch/mips/kernel/traps.c | 3 +- arch/mips/mm/c-octeon.c | 6 +- arch/mips/mm/c-r4k.c | 14 +- arch/mips/mm/dma-default.c | 1 + arch/mips/mm/page.c | 1 + arch/mips/mm/sc-mips.c | 3 +- arch/mips/mm/tlb-r4k.c | 1 + arch/mips/mm/tlbex.c | 1 + arch/mips/oprofile/common.c | 1 + 19 files changed, 236 insertions(+), 19 deletions(-) create mode 100644 arch/mips/include/asm/cpu-type.h diff --git a/arch/mips/cavium-octeon/csrc-octeon.c b/arch/mips/cavium-octeon/csrc-octeon.c index 02193953eb9e..b752c4ed0b79 100644 --- a/arch/mips/cavium-octeon/csrc-octeon.c +++ b/arch/mips/cavium-octeon/csrc-octeon.c @@ -12,6 +12,7 @@ #include #include +#include #include #include diff --git a/arch/mips/dec/prom/init.c b/arch/mips/dec/prom/init.c index ab169046e442..468f665de7bb 100644 --- a/arch/mips/dec/prom/init.c +++ b/arch/mips/dec/prom/init.c @@ -13,6 +13,7 @@ #include #include +#include #include #include diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h index fa44f3ec5302..51680d15ca8e 100644 --- a/arch/mips/include/asm/cpu-features.h +++ b/arch/mips/include/asm/cpu-features.h @@ -13,12 +13,6 @@ #include #include -#ifndef current_cpu_type -#define current_cpu_type() current_cpu_data.cputype -#endif - -#define boot_cpu_type() cpu_data[0].cputype - /* * SMP assumption: Options of CPU 0 are a superset of all processors. * This is true for all known MIPS systems. diff --git a/arch/mips/include/asm/cpu-type.h b/arch/mips/include/asm/cpu-type.h new file mode 100644 index 000000000000..4a402cc60c03 --- /dev/null +++ b/arch/mips/include/asm/cpu-type.h @@ -0,0 +1,203 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2003, 2004 Ralf Baechle + * Copyright (C) 2004 Maciej W. Rozycki + */ +#ifndef __ASM_CPU_TYPE_H +#define __ASM_CPU_TYPE_H + +#include +#include + +static inline int __pure __get_cpu_type(const int cpu_type) +{ + switch (cpu_type) { +#if defined(CONFIG_SYS_HAS_CPU_LOONGSON2E) || \ + defined(CONFIG_SYS_HAS_CPU_LOONGSON2F) + case CPU_LOONGSON2: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_LOONGSON1B + case CPU_LOONGSON1: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_MIPS32_R1 + case CPU_4KC: + case CPU_ALCHEMY: + case CPU_BMIPS3300: + case CPU_BMIPS4350: + case CPU_PR4450: + case CPU_BMIPS32: + case CPU_JZRISC: +#endif + +#if defined(CONFIG_SYS_HAS_CPU_MIPS32_R1) || \ + defined(CONFIG_SYS_HAS_CPU_MIPS32_R2) + case CPU_4KEC: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_MIPS32_R2 + case CPU_4KSC: + case CPU_24K: + case CPU_34K: + case CPU_1004K: + case CPU_74K: + case CPU_M14KC: + case CPU_M14KEC: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_MIPS64_R1 + case CPU_5KC: + case CPU_5KE: + case CPU_20KC: + case CPU_25KF: + case CPU_SB1: + case CPU_SB1A: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_MIPS64_R2 + /* + * All MIPS64 R2 processors have their own special symbols. That is, + * there currently is no pure R2 core + */ +#endif + +#ifdef CONFIG_SYS_HAS_CPU_R3000 + case CPU_R2000: + case CPU_R3000: + case CPU_R3000A: + case CPU_R3041: + case CPU_R3051: + case CPU_R3052: + case CPU_R3081: + case CPU_R3081E: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_TX39XX + case CPU_TX3912: + case CPU_TX3922: + case CPU_TX3927: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_VR41XX + case CPU_VR41XX: + case CPU_VR4111: + case CPU_VR4121: + case CPU_VR4122: + case CPU_VR4131: + case CPU_VR4133: + case CPU_VR4181: + case CPU_VR4181A: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_R4300 + case CPU_R4300: + case CPU_R4310: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_R4X00 + case CPU_R4000PC: + case CPU_R4000SC: + case CPU_R4000MC: + case CPU_R4200: + case CPU_R4400PC: + case CPU_R4400SC: + case CPU_R4400MC: + case CPU_R4600: + case CPU_R4700: + case CPU_R4640: + case CPU_R4650: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_TX49XX + case CPU_TX49XX: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_R5000 + case CPU_R5000: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_R5432 + case CPU_R5432: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_R5500 + case CPU_R5500: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_R6000 + case CPU_R6000: + case CPU_R6000A: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_NEVADA + case CPU_NEVADA: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_R8000 + case CPU_R8000: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_R10000 + case CPU_R10000: + case CPU_R12000: + case CPU_R14000: +#endif +#ifdef CONFIG_SYS_HAS_CPU_RM7000 + case CPU_RM7000: + case CPU_SR71000: +#endif +#ifdef CONFIG_SYS_HAS_CPU_RM9000 + case CPU_RM9000: +#endif +#ifdef CONFIG_SYS_HAS_CPU_SB1 + case CPU_SB1: + case CPU_SB1A: +#endif +#ifdef CONFIG_SYS_HAS_CPU_CAVIUM_OCTEON + case CPU_CAVIUM_OCTEON: + case CPU_CAVIUM_OCTEON_PLUS: + case CPU_CAVIUM_OCTEON2: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_BMIPS4380 + case CPU_BMIPS4380: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_BMIPS5000 + case CPU_BMIPS5000: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_XLP + case CPU_XLP: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_XLR + case CPU_XLR: +#endif + break; + default: + unreachable(); + } + + return cpu_type; +} + +static inline int __pure current_cpu_type(void) +{ + const int cpu_type = current_cpu_data.cputype; + + return __get_cpu_type(cpu_type); +} + +static inline int __pure boot_cpu_type(void) +{ + const int cpu_type = cpu_data[0].cputype; + + return __get_cpu_type(cpu_type); +} + +#endif /* __ASM_CPU_TYPE_H */ diff --git a/arch/mips/include/asm/mach-ip22/cpu-feature-overrides.h b/arch/mips/include/asm/mach-ip22/cpu-feature-overrides.h index f4caacd25552..1bcb6421205e 100644 --- a/arch/mips/include/asm/mach-ip22/cpu-feature-overrides.h +++ b/arch/mips/include/asm/mach-ip22/cpu-feature-overrides.h @@ -8,6 +8,8 @@ #ifndef __ASM_MACH_IP22_CPU_FEATURE_OVERRIDES_H #define __ASM_MACH_IP22_CPU_FEATURE_OVERRIDES_H +#include + /* * IP22 with a variety of processors so we can't use defaults for everything. */ diff --git a/arch/mips/include/asm/mach-ip27/cpu-feature-overrides.h b/arch/mips/include/asm/mach-ip27/cpu-feature-overrides.h index 1d2b6ff60d33..d6111aa2e886 100644 --- a/arch/mips/include/asm/mach-ip27/cpu-feature-overrides.h +++ b/arch/mips/include/asm/mach-ip27/cpu-feature-overrides.h @@ -8,6 +8,8 @@ #ifndef __ASM_MACH_IP27_CPU_FEATURE_OVERRIDES_H #define __ASM_MACH_IP27_CPU_FEATURE_OVERRIDES_H +#include + /* * IP27 only comes with R10000 family processors all using the same config */ diff --git a/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h b/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h index 65e9c856390d..4cec06d133db 100644 --- a/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h +++ b/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h @@ -9,6 +9,8 @@ #ifndef __ASM_MACH_IP28_CPU_FEATURE_OVERRIDES_H #define __ASM_MACH_IP28_CPU_FEATURE_OVERRIDES_H +#include + /* * IP28 only comes with R10000 family processors all using the same config */ diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 37663c7862a5..9ef2b049d3c0 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -20,6 +20,7 @@ #include #include +#include #include #include #include @@ -55,7 +56,7 @@ static inline void check_errata(void) { struct cpuinfo_mips *c = ¤t_cpu_data; - switch (c->cputype) { + switch (current_cpu_type()) { case CPU_34K: /* * Erratum "RPS May Cause Incorrect Instruction Execution" diff --git a/arch/mips/kernel/idle.c b/arch/mips/kernel/idle.c index 42f8875d2444..f7991d95bff9 100644 --- a/arch/mips/kernel/idle.c +++ b/arch/mips/kernel/idle.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include @@ -136,7 +137,7 @@ void __init check_wait(void) return; } - switch (c->cputype) { + switch (current_cpu_type()) { case CPU_R3081: case CPU_R3081E: cpu_wait = r3081_wait; diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c index 364d26ae4215..dcb8e5d3bb8a 100644 --- a/arch/mips/kernel/time.c +++ b/arch/mips/kernel/time.c @@ -24,6 +24,7 @@ #include #include +#include #include #include #include diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index aec3408edd4b..524841f02803 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -39,6 +39,7 @@ #include #include #include +#include #include #include #include @@ -622,7 +623,7 @@ static int simulate_rdhwr(struct pt_regs *regs, int rd, int rt) regs->regs[rt] = read_c0_count(); return 0; case 3: /* Count register resolution */ - switch (current_cpu_data.cputype) { + switch (current_cpu_type()) { case CPU_20KC: case CPU_25KF: regs->regs[rt] = 1; diff --git a/arch/mips/mm/c-octeon.c b/arch/mips/mm/c-octeon.c index 729e7702b1de..c8efdb5b6ee0 100644 --- a/arch/mips/mm/c-octeon.c +++ b/arch/mips/mm/c-octeon.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include @@ -186,9 +187,10 @@ static void probe_octeon(void) unsigned long dcache_size; unsigned int config1; struct cpuinfo_mips *c = ¤t_cpu_data; + int cputype = current_cpu_type(); config1 = read_c0_config1(); - switch (c->cputype) { + switch (cputype) { case CPU_CAVIUM_OCTEON: case CPU_CAVIUM_OCTEON_PLUS: c->icache.linesz = 2 << ((config1 >> 19) & 7); @@ -199,7 +201,7 @@ static void probe_octeon(void) c->icache.sets * c->icache.ways * c->icache.linesz; c->icache.waybit = ffs(icache_size / c->icache.ways) - 1; c->dcache.linesz = 128; - if (c->cputype == CPU_CAVIUM_OCTEON_PLUS) + if (cputype == CPU_CAVIUM_OCTEON_PLUS) c->dcache.sets = 2; /* CN5XXX has two Dcache sets */ else c->dcache.sets = 1; /* CN3XXX has one Dcache set */ diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index 40dced23e768..73ca8c52e83f 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include #include @@ -814,7 +815,7 @@ static void probe_pcache(void) unsigned long config1; unsigned int lsize; - switch (c->cputype) { + switch (current_cpu_type()) { case CPU_R4600: /* QED style two way caches? */ case CPU_R4700: case CPU_R5000: @@ -1050,7 +1051,7 @@ static void probe_pcache(void) * normally they'd suffer from aliases but magic in the hardware deals * with that for us so we don't need to take care ourselves. */ - switch (c->cputype) { + switch (current_cpu_type()) { case CPU_20KC: case CPU_25KF: case CPU_SB1: @@ -1070,7 +1071,7 @@ static void probe_pcache(void) case CPU_34K: case CPU_74K: case CPU_1004K: - if (c->cputype == CPU_74K) + if (current_cpu_type() == CPU_74K) alias_74k_erratum(c); if ((read_c0_config7() & (1 << 16))) { /* effectively physically indexed dcache, @@ -1083,7 +1084,7 @@ static void probe_pcache(void) c->dcache.flags |= MIPS_CACHE_ALIASES; } - switch (c->cputype) { + switch (current_cpu_type()) { case CPU_20KC: /* * Some older 20Kc chips doesn't have the 'VI' bit in @@ -1212,7 +1213,7 @@ static void setup_scache(void) * processors don't have a S-cache that would be relevant to the * Linux memory management. */ - switch (c->cputype) { + switch (current_cpu_type()) { case CPU_R4000SC: case CPU_R4000MC: case CPU_R4400SC: @@ -1389,9 +1390,8 @@ static void r4k_cache_error_setup(void) { extern char __weak except_vec2_generic; extern char __weak except_vec2_sb1; - struct cpuinfo_mips *c = ¤t_cpu_data; - switch (c->cputype) { + switch (current_cpu_type()) { case CPU_SB1: case CPU_SB1A: set_uncached_handler(0x100, &except_vec2_sb1, 0x80); diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c index 664e523653d0..f25a7e9f8cbc 100644 --- a/arch/mips/mm/dma-default.c +++ b/arch/mips/mm/dma-default.c @@ -18,6 +18,7 @@ #include #include +#include #include #include diff --git a/arch/mips/mm/page.c b/arch/mips/mm/page.c index 218c2109a55d..cbd81d17793a 100644 --- a/arch/mips/mm/page.c +++ b/arch/mips/mm/page.c @@ -18,6 +18,7 @@ #include #include +#include #include #include #include diff --git a/arch/mips/mm/sc-mips.c b/arch/mips/mm/sc-mips.c index 5d01392e3518..08d05aee8788 100644 --- a/arch/mips/mm/sc-mips.c +++ b/arch/mips/mm/sc-mips.c @@ -6,6 +6,7 @@ #include #include +#include #include #include #include @@ -71,7 +72,7 @@ static inline int mips_sc_is_activated(struct cpuinfo_mips *c) unsigned int tmp; /* Check the bypass bit (L2B) */ - switch (c->cputype) { + switch (current_cpu_type()) { case CPU_34K: case CPU_74K: case CPU_1004K: diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c index 00b26a67a06d..bb3a5f643e97 100644 --- a/arch/mips/mm/tlb-r4k.c +++ b/arch/mips/mm/tlb-r4k.c @@ -16,6 +16,7 @@ #include #include +#include #include #include #include diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index 821b45175dc1..9bb3a9363b06 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -30,6 +30,7 @@ #include #include +#include #include #include #include diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c index 5e5424753b56..4d1736fc1955 100644 --- a/arch/mips/oprofile/common.c +++ b/arch/mips/oprofile/common.c @@ -12,6 +12,7 @@ #include #include #include +#include #include "op_impl.h" From adbe6991efd36104ac9eaf751993d35eaa7f493a Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Wed, 29 May 2013 16:29:55 -0600 Subject: [PATCH 242/350] bio-integrity: Fix use of bs->bio_integrity_pool after free This fixes a copy and paste error introduced by 9f060e2231 ("block: Convert integrity to bvec_alloc_bs()"). Found by Coverity (CID 1020654). Signed-off-by: Bjorn Helgaas Acked-by: Kent Overstreet Signed-off-by: Jens Axboe --- fs/bio-integrity.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/bio-integrity.c b/fs/bio-integrity.c index 8fb42916d8a2..45e944fe52a6 100644 --- a/fs/bio-integrity.c +++ b/fs/bio-integrity.c @@ -734,7 +734,7 @@ void bioset_integrity_free(struct bio_set *bs) mempool_destroy(bs->bio_integrity_pool); if (bs->bvec_integrity_pool) - mempool_destroy(bs->bio_integrity_pool); + mempool_destroy(bs->bvec_integrity_pool); } EXPORT_SYMBOL(bioset_integrity_free); From 4c18c425b2d228415b635e97a64737d7f27c5536 Mon Sep 17 00:00:00 2001 From: Antonio Quartulli Date: Wed, 11 Sep 2013 19:14:44 +0200 Subject: [PATCH 243/350] batman-adv: set the TAG flag for the vid passed to BLA When receiving or sending a packet a packet on a VLAN, the vid has to be marked with the TAG flag in order to make any component in batman-adv understand that the packet is coming from a really tagged network. This fix the Bridge Loop Avoidance behaviour which was not able to send announces over VLAN interfaces. Introduced by 0b1da1765fdb00ca5d53bc95c9abc70dfc9aae5b ("batman-adv: change VID semantic in the BLA code") Signed-off-by: Antonio Quartulli Acked-by: Simon Wunderlich Signed-off-by: Marek Lindner --- net/batman-adv/soft-interface.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c index 4493913f0d5c..813db4e64602 100644 --- a/net/batman-adv/soft-interface.c +++ b/net/batman-adv/soft-interface.c @@ -168,6 +168,7 @@ static int batadv_interface_tx(struct sk_buff *skb, case ETH_P_8021Q: vhdr = (struct vlan_ethhdr *)skb->data; vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK; + vid |= BATADV_VLAN_HAS_TAG; if (vhdr->h_vlan_encapsulated_proto != ethertype) break; @@ -331,6 +332,7 @@ void batadv_interface_rx(struct net_device *soft_iface, case ETH_P_8021Q: vhdr = (struct vlan_ethhdr *)skb->data; vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK; + vid |= BATADV_VLAN_HAS_TAG; if (vhdr->h_vlan_encapsulated_proto != ethertype) break; From 595cb754983d4387cb25b3dcf08f5129663d634e Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Tue, 17 Sep 2013 09:30:34 +0300 Subject: [PATCH 244/350] vhost/scsi: use vmalloc for order-10 allocation As vhost scsi device struct is large, if the device is created on a busy system, kzalloc() might fail, so this patch does a fallback to vzalloc(). As vmalloc() adds overhead on data-path, add __GFP_REPEAT to kzalloc() flags to do this fallback only when really needed. Reviewed-by: Asias He Reported-by: Dan Aloni Signed-off-by: Michael S. Tsirkin --- drivers/vhost/scsi.c | 41 +++++++++++++++++++++++++++-------------- 1 file changed, 27 insertions(+), 14 deletions(-) diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c index 4b79a1f2f901..38ccf4ad6b7a 100644 --- a/drivers/vhost/scsi.c +++ b/drivers/vhost/scsi.c @@ -1373,21 +1373,30 @@ static int vhost_scsi_set_features(struct vhost_scsi *vs, u64 features) return 0; } +static void vhost_scsi_free(struct vhost_scsi *vs) +{ + if (is_vmalloc_addr(vs)) + vfree(vs); + else + kfree(vs); +} + static int vhost_scsi_open(struct inode *inode, struct file *f) { struct vhost_scsi *vs; struct vhost_virtqueue **vqs; - int r, i; + int r = -ENOMEM, i; - vs = kzalloc(sizeof(*vs), GFP_KERNEL); - if (!vs) - return -ENOMEM; + vs = kzalloc(sizeof(*vs), GFP_KERNEL | __GFP_NOWARN | __GFP_REPEAT); + if (!vs) { + vs = vzalloc(sizeof(*vs)); + if (!vs) + goto err_vs; + } vqs = kmalloc(VHOST_SCSI_MAX_VQ * sizeof(*vqs), GFP_KERNEL); - if (!vqs) { - kfree(vs); - return -ENOMEM; - } + if (!vqs) + goto err_vqs; vhost_work_init(&vs->vs_completion_work, vhost_scsi_complete_cmd_work); vhost_work_init(&vs->vs_event_work, tcm_vhost_evt_work); @@ -1407,14 +1416,18 @@ static int vhost_scsi_open(struct inode *inode, struct file *f) tcm_vhost_init_inflight(vs, NULL); - if (r < 0) { - kfree(vqs); - kfree(vs); - return r; - } + if (r < 0) + goto err_init; f->private_data = vs; return 0; + +err_init: + kfree(vqs); +err_vqs: + vhost_scsi_free(vs); +err_vs: + return r; } static int vhost_scsi_release(struct inode *inode, struct file *f) @@ -1431,7 +1444,7 @@ static int vhost_scsi_release(struct inode *inode, struct file *f) /* Jobs can re-queue themselves in evt kick handler. Do extra flush. */ vhost_scsi_flush(vs); kfree(vs->dev.vqs); - kfree(vs); + vhost_scsi_free(vs); return 0; } From d3d665a654a35c47463d2aa6353bac3ce293f4f5 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Tue, 17 Sep 2013 22:54:31 +0300 Subject: [PATCH 245/350] vhost-scsi: whitespace tweak Remove space at start of line that sneaked in. Signed-off-by: Michael S. Tsirkin --- drivers/vhost/scsi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c index 38ccf4ad6b7a..592b31698fc8 100644 --- a/drivers/vhost/scsi.c +++ b/drivers/vhost/scsi.c @@ -461,7 +461,7 @@ static void tcm_vhost_release_cmd(struct se_cmd *se_cmd) u32 i; for (i = 0; i < tv_cmd->tvc_sgl_count; i++) put_page(sg_page(&tv_cmd->tvc_sgl[i])); - } + } tcm_vhost_put_inflight(tv_cmd->inflight); percpu_ida_free(&se_sess->sess_tag_pool, se_cmd->map_tag); From 03da633aa7b08bdc4d86e9c2780bb89277b65cd6 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 16 Sep 2013 19:22:33 -0400 Subject: [PATCH 246/350] atomic_open: take care of EEXIST in no-open case with O_CREAT|O_EXCL in fs/namei.c Signed-off-by: Al Viro --- fs/9p/vfs_inode_dotl.c | 8 +------- fs/namei.c | 33 +++++++++++++++++++-------------- 2 files changed, 20 insertions(+), 21 deletions(-) diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c index 53687bbf2296..a7c481402c46 100644 --- a/fs/9p/vfs_inode_dotl.c +++ b/fs/9p/vfs_inode_dotl.c @@ -267,14 +267,8 @@ v9fs_vfs_atomic_open_dotl(struct inode *dir, struct dentry *dentry, } /* Only creates */ - if (!(flags & O_CREAT)) + if (!(flags & O_CREAT) || dentry->d_inode) return finish_no_open(file, res); - else if (dentry->d_inode) { - if ((flags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL)) - return -EEXIST; - else - return finish_no_open(file, res); - } v9ses = v9fs_inode2v9ses(dir); diff --git a/fs/namei.c b/fs/namei.c index 22eb5484774c..645268f23eb6 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -2725,16 +2725,6 @@ static int atomic_open(struct nameidata *nd, struct dentry *dentry, goto out; } - acc_mode = op->acc_mode; - if (WARN_ON(excl && !(*opened & FILE_CREATED))) - *opened |= FILE_CREATED; - - if (*opened & FILE_CREATED) { - WARN_ON(!(open_flag & O_CREAT)); - fsnotify_create(dir, dentry); - acc_mode = MAY_OPEN; - } - if (error) { /* returned 1, that is */ if (WARN_ON(file->f_path.dentry == DENTRY_NOT_SET)) { error = -EIO; @@ -2744,10 +2734,19 @@ static int atomic_open(struct nameidata *nd, struct dentry *dentry, dput(dentry); dentry = file->f_path.dentry; } - WARN_ON(!dentry->d_inode && (*opened & FILE_CREATED)); - if (create_error && dentry->d_inode == NULL) { - error = create_error; - goto out; + if (*opened & FILE_CREATED) + fsnotify_create(dir, dentry); + if (!dentry->d_inode) { + WARN_ON(*opened & FILE_CREATED); + if (create_error) { + error = create_error; + goto out; + } + } else { + if (excl && !(*opened & FILE_CREATED)) { + error = -EEXIST; + goto out; + } } goto looked_up; } @@ -2756,6 +2755,12 @@ static int atomic_open(struct nameidata *nd, struct dentry *dentry, * We didn't have the inode before the open, so check open permission * here. */ + acc_mode = op->acc_mode; + if (*opened & FILE_CREATED) { + WARN_ON(!(open_flag & O_CREAT)); + fsnotify_create(dir, dentry); + acc_mode = MAY_OPEN; + } error = may_open(&file->f_path, acc_mode, open_flag); if (error) fput(file); From 9c8f1ee40b6368e6b2775c9c9f816e2a5dca3c07 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 12 Sep 2013 17:06:33 +0530 Subject: [PATCH 247/350] cpufreq: Clear policy->cpus bits in __cpufreq_remove_dev_finish() This broke after a recent change "cedb70a cpufreq: Split __cpufreq_remove_dev() into two parts" from Srivatsa. Consider a scenario where we have two CPUs in a policy (0 & 1) and we are removing CPU 1. On the call to __cpufreq_remove_dev_prepare() we have cleared 1 from policy->cpus and now on a call to __cpufreq_remove_dev_finish() we read cpumask_weight of policy->cpus, which will come as 1 and this code will behave as if we are removing the last CPU from policy :) Fix it by clearing the CPU mask in __cpufreq_remove_dev_finish() instead of __cpufreq_remove_dev_prepare(). Tested-by: Stephen Warren Reviewed-by: Srivatsa S. Bhat Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 43c24aa756f6..dbfe219667d3 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1125,7 +1125,7 @@ static int cpufreq_nominate_new_policy_cpu(struct cpufreq_policy *policy, int ret; /* first sibling now owns the new sysfs dir */ - cpu_dev = get_cpu_device(cpumask_first(policy->cpus)); + cpu_dev = get_cpu_device(cpumask_any_but(policy->cpus, old_cpu)); /* Don't touch sysfs files during light-weight tear-down */ if (frozen) @@ -1189,12 +1189,9 @@ static int __cpufreq_remove_dev_prepare(struct device *dev, policy->governor->name, CPUFREQ_NAME_LEN); #endif - WARN_ON(lock_policy_rwsem_write(cpu)); + lock_policy_rwsem_read(cpu); cpus = cpumask_weight(policy->cpus); - - if (cpus > 1) - cpumask_clear_cpu(cpu, policy->cpus); - unlock_policy_rwsem_write(cpu); + unlock_policy_rwsem_read(cpu); if (cpu != policy->cpu) { if (!frozen) @@ -1237,9 +1234,12 @@ static int __cpufreq_remove_dev_finish(struct device *dev, return -EINVAL; } - lock_policy_rwsem_read(cpu); + WARN_ON(lock_policy_rwsem_write(cpu)); cpus = cpumask_weight(policy->cpus); - unlock_policy_rwsem_read(cpu); + + if (cpus > 1) + cpumask_clear_cpu(cpu, policy->cpus); + unlock_policy_rwsem_write(cpu); /* If cpu is last user of policy, free policy */ if (cpus == 1) { From 8efd57657d8ef666810b55e609da72de92314dc4 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Tue, 17 Sep 2013 10:22:11 +0530 Subject: [PATCH 248/350] cpufreq: unlock correct rwsem while updating policy->cpu Current code looks like this: WARN_ON(lock_policy_rwsem_write(cpu)); update_policy_cpu(policy, new_cpu); unlock_policy_rwsem_write(cpu); {lock|unlock}_policy_rwsem_write(cpu) takes/releases policy->cpu's rwsem. Because cpu is changing with the call to update_policy_cpu(), the unlock_policy_rwsem_write() will release the incorrect lock. The right solution would be to release the same lock as was taken earlier. Also update_policy_cpu() was also called from cpufreq_add_dev() without any locks and so its better if we move this locking to inside update_policy_cpu(). This patch fixes a regression introduced in 3.12 by commit f9ba680d23 (cpufreq: Extract the handover of policy cpu to a helper function). Reported-and-tested-by: Jon Medhurst Signed-off-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index dbfe219667d3..82ecbe39dfb0 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -952,9 +952,20 @@ static void update_policy_cpu(struct cpufreq_policy *policy, unsigned int cpu) if (cpu == policy->cpu) return; + /* + * Take direct locks as lock_policy_rwsem_write wouldn't work here. + * Also lock for last cpu is enough here as contention will happen only + * after policy->cpu is changed and after it is changed, other threads + * will try to acquire lock for new cpu. And policy is already updated + * by then. + */ + down_write(&per_cpu(cpu_policy_rwsem, policy->cpu)); + policy->last_cpu = policy->cpu; policy->cpu = cpu; + up_write(&per_cpu(cpu_policy_rwsem, policy->last_cpu)); + #ifdef CONFIG_CPU_FREQ_TABLE cpufreq_frequency_table_update_policy_cpu(policy); #endif @@ -1200,9 +1211,7 @@ static int __cpufreq_remove_dev_prepare(struct device *dev, new_cpu = cpufreq_nominate_new_policy_cpu(policy, cpu, frozen); if (new_cpu >= 0) { - WARN_ON(lock_policy_rwsem_write(cpu)); update_policy_cpu(policy, new_cpu); - unlock_policy_rwsem_write(cpu); if (!frozen) { pr_debug("%s: policy Kobject moved to cpu: %d " From e05e90702b2638a39b5ae9d22740f3a1607c54a0 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 16 Sep 2013 16:52:41 -0700 Subject: [PATCH 249/350] net loopback: Set loopback_dev to NULL when freed It has recently turned up that we have a number of long standing bugs in the network stack cleanup code with use of the loopback device after it has been freed that have not turned up because in most cases the storage allocated to the loopback device is not reused, when those accesses happen. Set looback_dev to NULL to trigger oopses instead of silent data corrupt when we hit this class of bug. Signed-off-by: "Eric W. Biederman" Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- drivers/net/loopback.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c index fcbf680c3e62..a17d85a331f1 100644 --- a/drivers/net/loopback.c +++ b/drivers/net/loopback.c @@ -146,6 +146,7 @@ static int loopback_dev_init(struct net_device *dev) static void loopback_dev_free(struct net_device *dev) { + dev_net(dev)->loopback_dev = NULL; free_percpu(dev->lstats); free_netdev(dev); } From 4bdf25976333ba435f7879b4487fe8aca799ac41 Mon Sep 17 00:00:00 2001 From: Avinash Kumar Date: Mon, 16 Sep 2013 21:39:41 +0530 Subject: [PATCH 250/350] drivers: net: phy: cicada.c: clears warning Use #include instead of clears following warnings : WARNING: Use include instead of WARNING: Use include instead of Signed-off-by: Avinash Kumar Signed-off-by: David S. Miller --- drivers/net/phy/cicada.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/phy/cicada.c b/drivers/net/phy/cicada.c index db472ffb6e89..313a0377f68f 100644 --- a/drivers/net/phy/cicada.c +++ b/drivers/net/phy/cicada.c @@ -30,9 +30,9 @@ #include #include -#include +#include #include -#include +#include /* Cicada Extended Control Register 1 */ #define MII_CIS8201_EXT_CON1 0x17 From 269aa759b474570fa642452742741525cfc226a9 Mon Sep 17 00:00:00 2001 From: Neal Cardwell Date: Mon, 16 Sep 2013 21:44:20 -0400 Subject: [PATCH 251/350] tcp: fix RTO calculated from cached RTT Commit 1b7fdd2ab5852 ("tcp: do not use cached RTT for RTT estimation") did not correctly account for the fact that crtt is the RTT shifted left 3 bits. Fix the calculation to consistently reflect this fact. Signed-off-by: Neal Cardwell Cc: Eric Dumazet Cc: Yuchung Cheng Acked-by: Eric Dumazet Acked-By: Yuchung Cheng Signed-off-by: David S. Miller --- net/ipv4/tcp_metrics.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c index 4a22f3e715df..52f3c6b971d2 100644 --- a/net/ipv4/tcp_metrics.c +++ b/net/ipv4/tcp_metrics.c @@ -502,7 +502,9 @@ reset: * ACKs, wait for troubles. */ if (crtt > tp->srtt) { - inet_csk(sk)->icsk_rto = crtt + max(crtt >> 2, tcp_rto_min(sk)); + /* Set RTO like tcp_rtt_estimator(), but from cached RTT. */ + crtt >>= 3; + inet_csk(sk)->icsk_rto = crtt + max(2 * crtt, tcp_rto_min(sk)); } else if (tp->srtt == 0) { /* RFC6298: 5.7 We've failed to get a valid RTT sample from * 3WHS. This is most likely due to retransmission, From 2936b6ab455433a5ad14c7a1d2473afe1fa3faa7 Mon Sep 17 00:00:00 2001 From: Sridhar Samudrala Date: Tue, 17 Sep 2013 12:12:40 -0700 Subject: [PATCH 252/350] vxlan: Avoid creating fdb entry with NULL destination Commit afbd8bae9c798c5cdbe4439d3a50536b5438247c vxlan: add implicit fdb entry for default destination creates an implicit fdb entry for default destination. This results in an invalid fdb entry if default destination is not specified. For ex: ip link add vxlan1 type vxlan id 100 creates the following fdb entry 00:00:00:00:00:00 dev vxlan1 dst 0.0.0.0 self permanent This patch fixes this issue by creating an fdb entry only if a valid default destination is specified. Signed-off-by: Sridhar Samudrala Signed-off-by: David S. Miller --- drivers/net/vxlan.c | 22 +++++++++++++--------- 1 file changed, 13 insertions(+), 9 deletions(-) diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 2400b1beddd5..d1292fe746bc 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -2490,15 +2490,19 @@ static int vxlan_newlink(struct net *net, struct net_device *dev, SET_ETHTOOL_OPS(dev, &vxlan_ethtool_ops); - /* create an fdb entry for default destination */ - err = vxlan_fdb_create(vxlan, all_zeros_mac, - &vxlan->default_dst.remote_ip, - NUD_REACHABLE|NUD_PERMANENT, - NLM_F_EXCL|NLM_F_CREATE, - vxlan->dst_port, vxlan->default_dst.remote_vni, - vxlan->default_dst.remote_ifindex, NTF_SELF); - if (err) - return err; + /* create an fdb entry for a valid default destination */ + if (!vxlan_addr_any(&vxlan->default_dst.remote_ip)) { + err = vxlan_fdb_create(vxlan, all_zeros_mac, + &vxlan->default_dst.remote_ip, + NUD_REACHABLE|NUD_PERMANENT, + NLM_F_EXCL|NLM_F_CREATE, + vxlan->dst_port, + vxlan->default_dst.remote_vni, + vxlan->default_dst.remote_ifindex, + NTF_SELF); + if (err) + return err; + } err = register_netdevice(dev); if (err) { From 03e1261778cca782d41a3d8e3945ca88cf93e01e Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Sun, 15 Sep 2013 17:50:26 +0200 Subject: [PATCH 253/350] tty: disassociate_ctty() sends the extra SIGCONT Starting from v3.10 (probably commit f91e2590410b: "tty: Signal foreground group processes in hangup") disassociate_ctty() sends SIGCONT if tty && on_exit. This breaks LSB test-suite, in particular test8 in _exit.c and test40 in sigcon5.c. Put the "!on_exit" check back to restore the old behaviour. Review by Peter Hurley: "Yes, this regression was introduced by me in that commit. The effect of the regression is that ptys will receive a SIGCONT when, in similar circumstances, ttys would not. The fact that two test vectors accidentally tripped over this regression suggests that some other apps may as well. Thanks for catching this" Cc: stable@vger.kernel.org # v3.10+ Signed-off-by: Oleg Nesterov Reported-by: Karel Srot Reviewed-by: Peter Hurley Signed-off-by: Linus Torvalds --- drivers/tty/tty_io.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index a9355ce1c6d5..3a1a01af9a80 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -854,7 +854,8 @@ void disassociate_ctty(int on_exit) struct pid *tty_pgrp = tty_get_pgrp(tty); if (tty_pgrp) { kill_pgrp(tty_pgrp, SIGHUP, on_exit); - kill_pgrp(tty_pgrp, SIGCONT, on_exit); + if (!on_exit) + kill_pgrp(tty_pgrp, SIGCONT, on_exit); put_pid(tty_pgrp); } } From 8061a6fa564fe0e71601632758b78d2ba737663c Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 17 Sep 2013 08:10:18 -0400 Subject: [PATCH 254/350] 9p: don't forget to destroy inode cache if fscache registration fails Signed-off-by: Al Viro --- fs/9p/v9fs.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c index 58e6cbce4156..08f2e1e9a7e6 100644 --- a/fs/9p/v9fs.c +++ b/fs/9p/v9fs.c @@ -603,10 +603,11 @@ static int v9fs_cache_register(void) if (ret < 0) return ret; #ifdef CONFIG_9P_FSCACHE - return fscache_register_netfs(&v9fs_cache_netfs); -#else - return ret; + ret = fscache_register_netfs(&v9fs_cache_netfs); + if (ret < 0) + v9fs_destroy_inode_cache(); #endif + return ret; } static void v9fs_cache_unregister(void) From cc173961a68034c1171a421f0dbed39edfb60880 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Tue, 17 Sep 2013 18:33:43 +0300 Subject: [PATCH 255/350] drm/i915: do not update cursor in crtc mode set MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The cursor is disabled before crtc mode set in crtc disable (and we assert this is the case), and enabled afterwards in crtc enable. Do not update it in crtc mode set. On HSW enabling a plane on a disabled pipe may hang the entire system. And there's no good reason for doing it ever, so just don't. v2: Add note about HSW hangs - vsyrjala Cc: stable@vger.kernel.org Suggested-by: Ville Syrjälä Reviewed-by: Ville Syrjälä Signed-off-by: Jani Nikula Tested-by: Paulo Zanoni Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_display.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 0d7c4f634bb9..a38056d68dd8 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -4877,9 +4877,6 @@ static int i9xx_crtc_mode_set(struct drm_crtc *crtc, return -EINVAL; } - /* Ensure that the cursor is valid for the new mode before changing... */ - intel_crtc_update_cursor(crtc, true); - if (is_lvds && dev_priv->lvds_downclock_avail) { /* * Ensure we match the reduced clock's P to the target clock. @@ -5768,9 +5765,6 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc, intel_crtc->config.dpll.p2 = clock.p2; } - /* Ensure that the cursor is valid for the new mode before changing... */ - intel_crtc_update_cursor(crtc, true); - /* CPU eDP is the only output that doesn't need a PCH PLL of its own. */ if (intel_crtc->config.has_pch_encoder) { fp = i9xx_dpll_compute_fp(&intel_crtc->config.dpll); @@ -6260,9 +6254,6 @@ static int haswell_crtc_mode_set(struct drm_crtc *crtc, if (!intel_ddi_pll_mode_set(crtc)) return -EINVAL; - /* Ensure that the cursor is valid for the new mode before changing... */ - intel_crtc_update_cursor(crtc, true); - if (intel_crtc->config.has_dp_encoder) intel_dp_set_m_n(intel_crtc); From f2f5f771c5fc0fa252cde3d0d0452dcc785cc17a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Tue, 17 Sep 2013 18:33:44 +0300 Subject: [PATCH 256/350] drm/i915: Don't enable the cursor on a disable pipe MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On HSW enabling a plane on a disabled pipe may hang the entire system. And there's no good reason for doing it ever, so just don't. v2: Move the crtc active checks to intel_crtc_cursor_{set,move} to avoid confusing people during modeset Cc: stable@vger.kernel.org Signed-off-by: Ville Syrjälä Tested-by: Paulo Zanoni Reviewed-by: Paulo Zanoni Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_display.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index a38056d68dd8..d8a1d98693e7 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6929,7 +6929,8 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc, intel_crtc->cursor_width = width; intel_crtc->cursor_height = height; - intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL); + if (intel_crtc->active) + intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL); return 0; fail_unpin: @@ -6948,7 +6949,8 @@ static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y) intel_crtc->cursor_x = x; intel_crtc->cursor_y = y; - intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL); + if (intel_crtc->active) + intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL); return 0; } From 851320e3f33503f557135a7fef6da66a2f7eec55 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Fri, 13 Sep 2013 12:09:53 -0700 Subject: [PATCH 257/350] ARM: dts: Fix muxing and regulator for wl12xx on the SDIO bus for pandaboard Commit b42b9181 (ARM: OMAP2+: Remove board-omap4panda.c) removed legacy booting in favor of device tree based booting for pandaboard. That caused the WLAN to stop working as the related .dts entries fell through the cracks. The legacy muxing was setting pulls for GPIO 48 and 49, so let's keep that behaviour for now to avoid further regressions for BT and FM. Also input logic was enabled for MMC CLK line, but I've verified that the input logic we don't need enabled for CLK line as it's not bidirectional. Also, we want to use non-removable instead of ti,non-removable as the ti,non-removable also sets no_regulator_off_init which is really not what we want as then wl12xx won't get powered up and down which is needed for resetting it. Note that looks like the WLAN interface fails to come up after a warm reset, but that most likely was also happening with the legacy booting and needs a separate fix. Cc: Paolo Pisati Cc: Rajendra Nayak Cc: Luciano Coelho Signed-off-by: Tony Lindgren Signed-off-by: Benoit Cousson --- arch/arm/boot/dts/omap4-panda-common.dtsi | 46 ++++++++++++++++++++++- 1 file changed, 45 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/omap4-panda-common.dtsi b/arch/arm/boot/dts/omap4-panda-common.dtsi index faa95b5b242e..814ab67c8c29 100644 --- a/arch/arm/boot/dts/omap4-panda-common.dtsi +++ b/arch/arm/boot/dts/omap4-panda-common.dtsi @@ -107,6 +107,19 @@ */ clock-frequency = <19200000>; }; + + /* regulator for wl12xx on sdio5 */ + wl12xx_vmmc: wl12xx_vmmc { + pinctrl-names = "default"; + pinctrl-0 = <&wl12xx_gpio>; + compatible = "regulator-fixed"; + regulator-name = "vwl1271"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + gpio = <&gpio2 11 0>; + startup-delay-us = <70000>; + enable-active-high; + }; }; &omap4_pmx_wkup { @@ -235,6 +248,33 @@ 0x1c (PIN_OUTPUT | MUX_MODE3) /* gpio_wk8 */ >; }; + + /* + * wl12xx GPIO outputs for WLAN_EN, BT_EN, FM_EN, BT_WAKEUP + * REVISIT: Are the pull-ups needed for GPIO 48 and 49? + */ + wl12xx_gpio: pinmux_wl12xx_gpio { + pinctrl-single,pins = < + 0x26 (PIN_OUTPUT | MUX_MODE3) /* gpmc_a19.gpio_43 */ + 0x2c (PIN_OUTPUT | MUX_MODE3) /* gpmc_a22.gpio_46 */ + 0x30 (PIN_OUTPUT_PULLUP | MUX_MODE3) /* gpmc_a24.gpio_48 */ + 0x32 (PIN_OUTPUT_PULLUP | MUX_MODE3) /* gpmc_a25.gpio_49 */ + >; + }; + + /* wl12xx GPIO inputs and SDIO pins */ + wl12xx_pins: pinmux_wl12xx_pins { + pinctrl-single,pins = < + 0x38 (PIN_INPUT | MUX_MODE3) /* gpmc_ncs2.gpio_52 */ + 0x3a (PIN_INPUT | MUX_MODE3) /* gpmc_ncs3.gpio_53 */ + 0x108 (PIN_OUTPUT | MUX_MODE0) /* sdmmc5_clk.sdmmc5_clk */ + 0x10a (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_cmd.sdmmc5_cmd */ + 0x10c (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_dat0.sdmmc5_dat0 */ + 0x10e (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_dat1.sdmmc5_dat1 */ + 0x110 (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_dat2.sdmmc5_dat2 */ + 0x112 (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_dat3.sdmmc5_dat3 */ + >; + }; }; &i2c1 { @@ -314,8 +354,12 @@ }; &mmc5 { - ti,non-removable; + pinctrl-names = "default"; + pinctrl-0 = <&wl12xx_pins>; + vmmc-supply = <&wl12xx_vmmc>; + non-removable; bus-width = <4>; + cap-power-off-card; }; &emif1 { From 775d2418f309052641d94c896f73dc779cf7ba1b Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Fri, 13 Sep 2013 12:09:57 -0700 Subject: [PATCH 258/350] ARM: dts: Fix muxing and regulator for wl12xx on the SDIO bus for blaze Commit 76787b3b (ARM: OMAP2+: Remove board-4430sdp.c) removed legacy booting in favor of device tree based booting for 4430sdp. That caused the WLAN to stop working as the related .dts entries fell through the cracks. I don't have the "1283 PG 2.21 connectivity device" on my 4430sdp, but the earlier version of this patch was tested by Luciano Coelho. This version has left out the input logic for MMC CLK line compared to the earlier version as that is not bidirectional, and should be safe to do. Cc: Rajendra Nayak Cc: Luciano Coelho Cc: Ruslan Bilovol Signed-off-by: Tony Lindgren Signed-off-by: Benoit Cousson --- arch/arm/boot/dts/omap4-sdp.dts | 39 ++++++++++++++++++++++++++++++++- 1 file changed, 38 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts index 7951b4ea500a..4f78380ecdb8 100644 --- a/arch/arm/boot/dts/omap4-sdp.dts +++ b/arch/arm/boot/dts/omap4-sdp.dts @@ -140,6 +140,19 @@ "DMic", "Digital Mic", "Digital Mic", "Digital Mic1 Bias"; }; + + /* regulator for wl12xx on sdio5 */ + wl12xx_vmmc: wl12xx_vmmc { + pinctrl-names = "default"; + pinctrl-0 = <&wl12xx_gpio>; + compatible = "regulator-fixed"; + regulator-name = "vwl1271"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + gpio = <&gpio2 22 0>; + startup-delay-us = <70000>; + enable-active-high; + }; }; &omap4_pmx_wkup { @@ -295,6 +308,26 @@ 0xf0 (PIN_INPUT_PULLUP | MUX_MODE0) /* i2c4_sda */ >; }; + + /* wl12xx GPIO output for WLAN_EN */ + wl12xx_gpio: pinmux_wl12xx_gpio { + pinctrl-single,pins = < + 0x3c (PIN_OUTPUT | MUX_MODE3) /* gpmc_nwp.gpio_54 */ + >; + }; + + /* wl12xx GPIO inputs and SDIO pins */ + wl12xx_pins: pinmux_wl12xx_pins { + pinctrl-single,pins = < + 0x3a (PIN_INPUT | MUX_MODE3) /* gpmc_ncs3.gpio_53 */ + 0x108 (PIN_OUTPUT | MUX_MODE3) /* sdmmc5_clk.sdmmc5_clk */ + 0x10a (PIN_INPUT_PULLUP | MUX_MODE3) /* sdmmc5_cmd.sdmmc5_cmd */ + 0x10c (PIN_INPUT_PULLUP | MUX_MODE3) /* sdmmc5_dat0.sdmmc5_dat0 */ + 0x10e (PIN_INPUT_PULLUP | MUX_MODE3) /* sdmmc5_dat1.sdmmc5_dat1 */ + 0x110 (PIN_INPUT_PULLUP | MUX_MODE3) /* sdmmc5_dat2.sdmmc5_dat2 */ + 0x112 (PIN_INPUT_PULLUP | MUX_MODE3) /* sdmmc5_dat3.sdmmc5_dat3 */ + >; + }; }; &i2c1 { @@ -420,8 +453,12 @@ }; &mmc5 { + pinctrl-names = "default"; + pinctrl-0 = <&wl12xx_pins>; + vmmc-supply = <&wl12xx_vmmc>; + non-removable; bus-width = <4>; - ti,non-removable; + cap-power-off-card; }; &emif1 { From a8e0108cac181a7b141dacaa99ea52efaf9b5f07 Mon Sep 17 00:00:00 2001 From: Vince Weaver Date: Tue, 17 Sep 2013 14:53:41 -0400 Subject: [PATCH 259/350] perf: Fix UAPI export of PERF_EVENT_IOC_ID Without the following patch I have problems compiling code using the new PERF_EVENT_IOC_ID ioctl(). It looks like u64 was used instead of __u64 Signed-off-by: Vince Weaver Acked-by: Peter Zijlstra Cc: Arnaldo Carvalho de Melo Link: http://lkml.kernel.org/r/alpine.DEB.2.10.1309171450380.11444@vincent-weaver-1.um.maine.edu Signed-off-by: Ingo Molnar --- include/uapi/linux/perf_event.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h index ca1d90bcb74d..40a1fb807396 100644 --- a/include/uapi/linux/perf_event.h +++ b/include/uapi/linux/perf_event.h @@ -324,7 +324,7 @@ struct perf_event_attr { #define PERF_EVENT_IOC_PERIOD _IOW('$', 4, __u64) #define PERF_EVENT_IOC_SET_OUTPUT _IO ('$', 5) #define PERF_EVENT_IOC_SET_FILTER _IOW('$', 6, char *) -#define PERF_EVENT_IOC_ID _IOR('$', 7, u64 *) +#define PERF_EVENT_IOC_ID _IOR('$', 7, __u64 *) enum perf_event_ioc_flags { PERF_IOC_FLAG_GROUP = 1U << 0, From 65399f03266e138506417920952e1c8ed022ec47 Mon Sep 17 00:00:00 2001 From: Enric Balletbo i Serra Date: Tue, 10 Sep 2013 17:35:23 +0200 Subject: [PATCH 260/350] ARM: dts: igep00x0: Add pinmux configuration for MCBSP2 Add pinmux configuration for MCBSP2 connected to the TDM interface. With this configuration the Headset modules works as expected. Signed-off-by: Enric Balletbo i Serra Acked-by: Javier Martinez Canillas Signed-off-by: Benoit Cousson --- arch/arm/boot/dts/omap3-igep.dtsi | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/arch/arm/boot/dts/omap3-igep.dtsi b/arch/arm/boot/dts/omap3-igep.dtsi index bc48b114eae6..2326d11462a5 100644 --- a/arch/arm/boot/dts/omap3-igep.dtsi +++ b/arch/arm/boot/dts/omap3-igep.dtsi @@ -48,6 +48,15 @@ >; }; + mcbsp2_pins: pinmux_mcbsp2_pins { + pinctrl-single,pins = < + 0x10c (PIN_INPUT | MUX_MODE0) /* mcbsp2_fsx.mcbsp2_fsx */ + 0x10e (PIN_INPUT | MUX_MODE0) /* mcbsp2_clkx.mcbsp2_clkx */ + 0x110 (PIN_INPUT | MUX_MODE0) /* mcbsp2_dr.mcbsp2.dr */ + 0x112 (PIN_OUTPUT | MUX_MODE0) /* mcbsp2_dx.mcbsp2_dx */ + >; + }; + mmc1_pins: pinmux_mmc1_pins { pinctrl-single,pins = < 0x114 (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc1_clk.sdmmc1_clk */ @@ -93,6 +102,11 @@ clock-frequency = <400000>; }; +&mcbsp2 { + pinctrl-names = "default"; + pinctrl-0 = <&mcbsp2_pins>; +}; + &mmc1 { pinctrl-names = "default"; pinctrl-0 = <&mmc1_pins>; From 9c9b415c50bc298ac61412dff856eae2f54889ee Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Thu, 12 Sep 2013 13:47:32 +0200 Subject: [PATCH 261/350] MIPS: Reimplement get_cycles(). This essentially reverts commit efb9ca08b5a2374b29938cdcab417ce4feb14b54 (kernel.org) / 58020a106879a8b372068741c81f0015c9b0b96dbv [[MIPS] Change get_cycles to always return 0.] Most users of get_cycles() invoke it as a timing interface. That's why in modern kernels it was never very much missed for. /dev/random however uses get_cycles() in the how the jitter in the interrupt timing contains some useful entropy. Signed-off-by: Ralf Baechle --- arch/mips/include/asm/timex.h | 33 ++++++++++++++++++++++++++++++++- 1 file changed, 32 insertions(+), 1 deletion(-) diff --git a/arch/mips/include/asm/timex.h b/arch/mips/include/asm/timex.h index 6529704aa73a..c5424757da65 100644 --- a/arch/mips/include/asm/timex.h +++ b/arch/mips/include/asm/timex.h @@ -10,7 +10,9 @@ #ifdef __KERNEL__ +#include #include +#include /* * This is the clock rate of the i8253 PIT. A MIPS system may not have @@ -33,9 +35,38 @@ typedef unsigned int cycles_t; +/* + * On R4000/R4400 before version 5.0 an erratum exists such that if the + * cycle counter is read in the exact moment that it is matching the + * compare register, no interrupt will be generated. + * + * There is a suggested workaround and also the erratum can't strike if + * the compare interrupt isn't being used as the clock source device. + * However for now the implementaton of this function doesn't get these + * fine details right. + */ static inline cycles_t get_cycles(void) { - return 0; + switch (boot_cpu_type()) { + case CPU_R4400PC: + case CPU_R4400SC: + case CPU_R4400MC: + if ((read_c0_prid() & 0xff) >= 0x0050) + return read_c0_count(); + break; + + case CPU_R4000PC: + case CPU_R4000SC: + case CPU_R4000MC: + break; + + default: + if (cpu_has_counter) + return read_c0_count(); + break; + } + + return 0; /* no usable counter */ } #endif /* __KERNEL__ */ From 7652113c2f508b1c8176640dcd034730fe79bc48 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Wed, 18 Sep 2013 08:33:55 -0600 Subject: [PATCH 262/350] If the queue is dying then we only call the rq->end_io callout. This leaves bios setup on the request, because the caller assumes when the blk_execute_rq_nowait/blk_execute_rq call has completed that the rq->bios have been cleaned up. This patch has blk_execute_rq_nowait use __blk_end_request_all to free bios and also call rq->end_io. Signed-off-by: Mike Christie Signed-off-by: Jens Axboe --- block/blk-exec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/block/blk-exec.c b/block/blk-exec.c index e70621396129..ae4f27d7944e 100644 --- a/block/blk-exec.c +++ b/block/blk-exec.c @@ -68,9 +68,9 @@ void blk_execute_rq_nowait(struct request_queue *q, struct gendisk *bd_disk, spin_lock_irq(q->queue_lock); if (unlikely(blk_queue_dying(q))) { + rq->cmd_flags |= REQ_QUIET; rq->errors = -ENXIO; - if (rq->end_io) - rq->end_io(rq, rq->errors); + __blk_end_request_all(rq, rq->errors); spin_unlock_irq(q->queue_lock); return; } From 258e1e73793650f74ca5626b9c02d8631d5fbdf2 Mon Sep 17 00:00:00 2001 From: Leonid Yegoshin Date: Tue, 10 Sep 2013 19:36:04 -0500 Subject: [PATCH 263/350] MIPS: Fix VGA_MAP_MEM macro. Use the CKSEG1ADDR macro when calculating VGA_MAP_MEM. [ralf@linux-mips.org: Include Signed-off-by: Steven J. Hill Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5814/ Signed-off-by: Ralf Baechle --- arch/mips/include/asm/vga.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/mips/include/asm/vga.h b/arch/mips/include/asm/vga.h index f4cff7e4fa8a..f82c83749a08 100644 --- a/arch/mips/include/asm/vga.h +++ b/arch/mips/include/asm/vga.h @@ -6,6 +6,7 @@ #ifndef _ASM_VGA_H #define _ASM_VGA_H +#include #include /* @@ -13,7 +14,7 @@ * access the videoram directly without any black magic. */ -#define VGA_MAP_MEM(x, s) (0xb0000000L + (unsigned long)(x)) +#define VGA_MAP_MEM(x, s) CKSEG1ADDR(0x10000000L + (unsigned long)(x)) #define vga_readb(x) (*(x)) #define vga_writeb(x, y) (*(y) = (x)) From c8a5b7bc75342542ce5e3556780e8a03357ff686 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Wed, 18 Sep 2013 15:08:52 +0200 Subject: [PATCH 264/350] ARM: u300: hide submenus Right now the U300 submenus are showcased for everyone even if we're not on v5 multiplatforms. Hide this in the multiplatform configuration properly. Cc: arm@kernel.org Signed-off-by: Linus Walleij Signed-off-by: Olof Johansson --- arch/arm/mach-u300/Kconfig | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/arm/mach-u300/Kconfig b/arch/arm/mach-u300/Kconfig index a85adcd00882..a1659863bfd5 100644 --- a/arch/arm/mach-u300/Kconfig +++ b/arch/arm/mach-u300/Kconfig @@ -1,7 +1,3 @@ -menu "ST-Ericsson AB U300/U335 Platform" - -comment "ST-Ericsson Mobile Platform Products" - config ARCH_U300 bool "ST-Ericsson U300 Series" if ARCH_MULTI_V5 depends on MMU @@ -25,7 +21,9 @@ config ARCH_U300 help Support for ST-Ericsson U300 series mobile platforms. -comment "ST-Ericsson U300/U335 Feature Selections" +if ARCH_U300 + +menu "ST-Ericsson AB U300/U335 Platform" config MACH_U300 depends on ARCH_U300 @@ -53,3 +51,5 @@ config MACH_U300_SPIDUMMY SPI framework and ARM PL022 support. endmenu + +endif From a0f6ed8ebe4f6d494ef70f67d4c0c153cbf59577 Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Wed, 18 Sep 2013 11:16:03 -0400 Subject: [PATCH 265/350] RPCSEC_GSS: fix crash on destroying gss auth This fixes a regression since eb6dc19d8e72ce3a957af5511d20c0db0a8bd007 "RPCSEC_GSS: Share all credential caches on a per-transport basis" which could cause an occasional oops in the nfsd code (see below). The problem was that an auth was left referencing a client that had been freed. To avoid this we need to ensure that auths are shared only between descendants of a common client; the fact that a clone of an rpc_client takes a reference on its parent then ensures that the parent client will last as long as the auth. Also add a comment explaining what I think was the intention of this code. general protection fault: 0000 [#1] PREEMPT SMP Modules linked in: rpcsec_gss_krb5 nfsd auth_rpcgss oid_registry nfs_acl lockd sunrpc CPU: 3 PID: 4071 Comm: kworker/u8:2 Not tainted 3.11.0-rc2-00182-g025145f #1665 Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 Workqueue: nfsd4_callbacks nfsd4_do_callback_rpc [nfsd] task: ffff88003e206080 ti: ffff88003c384000 task.ti: ffff88003c384000 RIP: 0010:[] [] rpc_net_ns+0x53/0x70 [sunrpc] RSP: 0000:ffff88003c385ab8 EFLAGS: 00010246 RAX: 6b6b6b6b6b6b6b6b RBX: ffff88003af9a800 RCX: 0000000000000002 RDX: ffffffffa00001a5 RSI: 0000000000000001 RDI: ffffffff81e284e0 RBP: ffff88003c385ad8 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000015 R12: ffff88003c990840 R13: ffff88003c990878 R14: ffff88003c385ba8 R15: ffff88003e206080 FS: 0000000000000000(0000) GS:ffff88003fd80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00007fcdf737e000 CR3: 000000003ad2b000 CR4: 00000000000006e0 Stack: ffffffffa00001a5 0000000000000006 0000000000000006 ffff88003af9a800 ffff88003c385b08 ffffffffa00d52a4 ffff88003c385ba8 ffff88003c751bd8 ffff88003c751bc0 ffff88003e113600 ffff88003c385b18 ffffffffa00d530c Call Trace: [] ? rpc_net_ns+0x5/0x70 [sunrpc] [] __gss_pipe_release+0x54/0x90 [auth_rpcgss] [] gss_pipe_free+0x2c/0x30 [auth_rpcgss] [] gss_destroy+0x9b/0xf0 [auth_rpcgss] [] rpcauth_release+0x23/0x30 [sunrpc] [] rpc_release_client+0x51/0xb0 [sunrpc] [] rpc_shutdown_client+0xe5/0x170 [sunrpc] [] ? cpuacct_charge+0xa4/0xb0 [] ? cpuacct_charge+0x5/0xb0 [] nfsd4_process_cb_update.isra.17+0x2f/0x210 [nfsd] [] ? _raw_spin_unlock_irq+0x30/0x60 [] ? _raw_spin_unlock_irq+0x3b/0x60 [] ? process_one_work+0x15b/0x510 [] nfsd4_do_callback_rpc+0x8d/0xa0 [nfsd] [] process_one_work+0x1ce/0x510 [] ? process_one_work+0x15b/0x510 [] worker_thread+0x11b/0x370 [] ? manage_workers.isra.24+0x2b0/0x2b0 [] kthread+0xdb/0xe0 [] ? _raw_spin_unlock_irq+0x30/0x60 [] ? __init_kthread_worker+0x70/0x70 [] ret_from_fork+0x7c/0xb0 [] ? __init_kthread_worker+0x70/0x70 Code: a5 01 00 a0 31 d2 31 f6 48 c7 c7 e0 84 e2 81 e8 f4 91 0a e1 48 8b 43 60 48 c7 c2 a5 01 00 a0 be 01 00 00 00 48 c7 c7 e0 84 e2 81 <48> 8b 98 10 07 00 00 e8 91 8f 0a e1 e8 +3c 4e 07 e1 48 83 c4 18 RIP [] rpc_net_ns+0x53/0x70 [sunrpc] RSP Signed-off-by: J. Bruce Fields Signed-off-by: Trond Myklebust --- net/sunrpc/auth_gss/auth_gss.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c index fcac5d141717..084656671d6e 100644 --- a/net/sunrpc/auth_gss/auth_gss.c +++ b/net/sunrpc/auth_gss/auth_gss.c @@ -1075,6 +1075,15 @@ gss_destroy(struct rpc_auth *auth) kref_put(&gss_auth->kref, gss_free_callback); } +/* + * Auths may be shared between rpc clients that were cloned from a + * common client with the same xprt, if they also share the flavor and + * target_name. + * + * The auth is looked up from the oldest parent sharing the same + * cl_xprt, and the auth itself references only that common parent + * (which is guaranteed to last as long as any of its descendants). + */ static struct gss_auth * gss_auth_find_or_add_hashed(struct rpc_auth_create_args *args, struct rpc_clnt *clnt, @@ -1088,6 +1097,8 @@ gss_auth_find_or_add_hashed(struct rpc_auth_create_args *args, gss_auth, hash, hashval) { + if (gss_auth->client != clnt) + continue; if (gss_auth->rpc_auth.au_flavor != args->pseudoflavor) continue; if (gss_auth->target_name != args->target_name) { From d26b17edafc45187c30cae134a5e5429d58ad676 Mon Sep 17 00:00:00 2001 From: Andrea Adami Date: Mon, 16 Sep 2013 00:04:42 +0200 Subject: [PATCH 266/350] ARM: sa1100: collie.c: fall back to jedec_probe flash detection Zaurus collie contains 2 LH28F640BFHE-PTTL90 (64M 4Mx16) and at the moment cfi will not detect the collie NOR. In the meanwhile we can revert to the jedec-probe map which has been fixed with following commit: mtd: jedec_probe: fix LH28F640BF definition fe2f4c8e0bf2756b670ee78fa9772613a2ea8495 Somehow this is unsatisfactory because the flash is mounted READ ONLY (as from factory, with a RO cramfs) Signed-off-by: Andrea Adami Signed-off-by: Olof Johansson --- arch/arm/mach-sa1100/collie.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-sa1100/collie.c b/arch/arm/mach-sa1100/collie.c index 612a45689770..7fb96ebdc0fb 100644 --- a/arch/arm/mach-sa1100/collie.c +++ b/arch/arm/mach-sa1100/collie.c @@ -289,7 +289,7 @@ static void collie_flash_exit(void) } static struct flash_platform_data collie_flash_data = { - .map_name = "cfi_probe", + .map_name = "jedec_probe", .init = collie_flash_init, .set_vpp = collie_set_vpp, .exit = collie_flash_exit, From f78afb356303e5f78750321a63809ef5c2d13c0d Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Wed, 18 Sep 2013 01:50:38 -0700 Subject: [PATCH 267/350] bnx2x, cnic, bnx2i, bnx2fc: Fix bnx2i and bnx2fc regressions. commit b9871bcfd211d316adee317608dab44c58d6ea2d bnx2x: VF RSS support - PF side changed the configuration of the doorbell HW and it broke iSCSI and FCoE. We fix this by making compatible changes to the doorbell address in bnx2i and bnx2fc. For the userspace driver, we need to pass a modified CID so that the existing userspace driver will calculate the correct doorbell address and continue to work. Signed-off-by: Ariel Elior Signed-off-by: Eddie Wai Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x.h | 36 +++++++++++++++++-- .../net/ethernet/broadcom/bnx2x/bnx2x_main.c | 4 +++ drivers/net/ethernet/broadcom/cnic.c | 3 +- drivers/scsi/bnx2fc/bnx2fc.h | 2 +- drivers/scsi/bnx2fc/bnx2fc_hwi.c | 3 +- drivers/scsi/bnx2i/bnx2i.h | 2 +- drivers/scsi/bnx2i/bnx2i_hwi.c | 3 +- 7 files changed, 43 insertions(+), 10 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h index 70b6a05834d1..97b3d32a98bd 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h @@ -246,8 +246,37 @@ enum { BNX2X_MAX_CNIC_ETH_CL_ID_IDX, }; -#define BNX2X_CNIC_START_ETH_CID(bp) (BNX2X_NUM_NON_CNIC_QUEUES(bp) *\ +/* use a value high enough to be above all the PFs, which has least significant + * nibble as 8, so when cnic needs to come up with a CID for UIO to use to + * calculate doorbell address according to old doorbell configuration scheme + * (db_msg_sz 1 << 7 * cid + 0x40 DPM offset) it can come up with a valid number + * We must avoid coming up with cid 8 for iscsi since according to this method + * the designated UIO cid will come out 0 and it has a special handling for that + * case which doesn't suit us. Therefore will will cieling to closes cid which + * has least signigifcant nibble 8 and if it is 8 we will move forward to 0x18. + */ + +#define BNX2X_1st_NON_L2_ETH_CID(bp) (BNX2X_NUM_NON_CNIC_QUEUES(bp) * \ (bp)->max_cos) +/* amount of cids traversed by UIO's DPM addition to doorbell */ +#define UIO_DPM 8 +/* roundup to DPM offset */ +#define UIO_ROUNDUP(bp) (roundup(BNX2X_1st_NON_L2_ETH_CID(bp), \ + UIO_DPM)) +/* offset to nearest value which has lsb nibble matching DPM */ +#define UIO_CID_OFFSET(bp) ((UIO_ROUNDUP(bp) + UIO_DPM) % \ + (UIO_DPM * 2)) +/* add offset to rounded-up cid to get a value which could be used with UIO */ +#define UIO_DPM_ALIGN(bp) (UIO_ROUNDUP(bp) + UIO_CID_OFFSET(bp)) +/* but wait - avoid UIO special case for cid 0 */ +#define UIO_DPM_CID0_OFFSET(bp) ((UIO_DPM * 2) * \ + (UIO_DPM_ALIGN(bp) == UIO_DPM)) +/* Properly DPM aligned CID dajusted to cid 0 secal case */ +#define BNX2X_CNIC_START_ETH_CID(bp) (UIO_DPM_ALIGN(bp) + \ + (UIO_DPM_CID0_OFFSET(bp))) +/* how many cids were wasted - need this value for cid allocation */ +#define UIO_CID_PAD(bp) (BNX2X_CNIC_START_ETH_CID(bp) - \ + BNX2X_1st_NON_L2_ETH_CID(bp)) /* iSCSI L2 */ #define BNX2X_ISCSI_ETH_CID(bp) (BNX2X_CNIC_START_ETH_CID(bp)) /* FCoE L2 */ @@ -1680,10 +1709,11 @@ struct bnx2x { * Maximum CID count that might be required by the bnx2x: * Max RSS * Max_Tx_Multi_Cos + FCoE + iSCSI */ + #define BNX2X_L2_CID_COUNT(bp) (BNX2X_NUM_ETH_QUEUES(bp) * BNX2X_MULTI_TX_COS \ - + 2 * CNIC_SUPPORT(bp)) + + CNIC_SUPPORT(bp) * (2 + UIO_CID_PAD(bp))) #define BNX2X_L2_MAX_CID(bp) (BNX2X_MAX_RSS_COUNT(bp) * BNX2X_MULTI_TX_COS \ - + 2 * CNIC_SUPPORT(bp)) + + CNIC_SUPPORT(bp) * (2 + UIO_CID_PAD(bp))) #define L2_ILT_LINES(bp) (DIV_ROUND_UP(BNX2X_L2_CID_COUNT(bp),\ ILT_PAGE_CIDS)) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index 62c59eda1239..a6704b555042 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -13632,6 +13632,10 @@ void bnx2x_setup_cnic_info(struct bnx2x *bp) cp->fcoe_init_cid = BNX2X_FCOE_ETH_CID(bp); cp->iscsi_l2_cid = BNX2X_ISCSI_ETH_CID(bp); + DP(NETIF_MSG_IFUP, "BNX2X_1st_NON_L2_ETH_CID(bp) %x, cp->starting_cid %x, cp->fcoe_init_cid %x, cp->iscsi_l2_cid %x\n", + BNX2X_1st_NON_L2_ETH_CID(bp), cp->starting_cid, cp->fcoe_init_cid, + cp->iscsi_l2_cid); + if (NO_ISCSI_OOO(bp)) cp->drv_state |= CNIC_DRV_STATE_NO_ISCSI_OOO; } diff --git a/drivers/net/ethernet/broadcom/cnic.c b/drivers/net/ethernet/broadcom/cnic.c index 8142480d9770..93da16b36df0 100644 --- a/drivers/net/ethernet/broadcom/cnic.c +++ b/drivers/net/ethernet/broadcom/cnic.c @@ -5217,7 +5217,8 @@ static void cnic_init_rings(struct cnic_dev *dev) "iSCSI CLIENT_SETUP did not complete\n"); cnic_spq_completion(dev, DRV_CTL_RET_L2_SPQ_CREDIT_CMD, 1); cnic_ring_ctl(dev, cid, cli, 1); - *cid_ptr = cid; + *cid_ptr = cid >> 4; + *(cid_ptr + 1) = cid * bp->db_size; } } diff --git a/drivers/scsi/bnx2fc/bnx2fc.h b/drivers/scsi/bnx2fc/bnx2fc.h index 08b22a901c25..d7ca9305ff45 100644 --- a/drivers/scsi/bnx2fc/bnx2fc.h +++ b/drivers/scsi/bnx2fc/bnx2fc.h @@ -105,7 +105,7 @@ #define BNX2FC_RQ_WQE_SIZE (BNX2FC_RQ_BUF_SZ) #define BNX2FC_XFERQ_WQE_SIZE (sizeof(struct fcoe_xfrqe)) #define BNX2FC_CONFQ_WQE_SIZE (sizeof(struct fcoe_confqe)) -#define BNX2FC_5771X_DB_PAGE_SIZE 128 +#define BNX2X_DB_SHIFT 3 #define BNX2FC_TASK_SIZE 128 #define BNX2FC_TASKS_PER_PAGE (PAGE_SIZE/BNX2FC_TASK_SIZE) diff --git a/drivers/scsi/bnx2fc/bnx2fc_hwi.c b/drivers/scsi/bnx2fc/bnx2fc_hwi.c index c0d035a8f8f9..46a37657307f 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_hwi.c +++ b/drivers/scsi/bnx2fc/bnx2fc_hwi.c @@ -1421,8 +1421,7 @@ int bnx2fc_map_doorbell(struct bnx2fc_rport *tgt) reg_base = pci_resource_start(hba->pcidev, BNX2X_DOORBELL_PCI_BAR); - reg_off = BNX2FC_5771X_DB_PAGE_SIZE * - (context_id & 0x1FFFF) + DPM_TRIGER_TYPE; + reg_off = (1 << BNX2X_DB_SHIFT) * (context_id & 0x1FFFF); tgt->ctx_base = ioremap_nocache(reg_base + reg_off, 4); if (!tgt->ctx_base) return -ENOMEM; diff --git a/drivers/scsi/bnx2i/bnx2i.h b/drivers/scsi/bnx2i/bnx2i.h index 6940f0930a84..c73bbcb63c02 100644 --- a/drivers/scsi/bnx2i/bnx2i.h +++ b/drivers/scsi/bnx2i/bnx2i.h @@ -64,7 +64,7 @@ #define MAX_PAGES_PER_CTRL_STRUCT_POOL 8 #define BNX2I_RESERVED_SLOW_PATH_CMD_SLOTS 4 -#define BNX2I_5771X_DBELL_PAGE_SIZE 128 +#define BNX2X_DB_SHIFT 3 /* 5706/08 hardware has limit on maximum buffer size per BD it can handle */ #define MAX_BD_LENGTH 65535 diff --git a/drivers/scsi/bnx2i/bnx2i_hwi.c b/drivers/scsi/bnx2i/bnx2i_hwi.c index af3e675d4d48..5be718c241c4 100644 --- a/drivers/scsi/bnx2i/bnx2i_hwi.c +++ b/drivers/scsi/bnx2i/bnx2i_hwi.c @@ -2738,8 +2738,7 @@ int bnx2i_map_ep_dbell_regs(struct bnx2i_endpoint *ep) if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) { reg_base = pci_resource_start(ep->hba->pcidev, BNX2X_DOORBELL_PCI_BAR); - reg_off = BNX2I_5771X_DBELL_PAGE_SIZE * (cid_num & 0x1FFFF) + - DPM_TRIGER_TYPE; + reg_off = (1 << BNX2X_DB_SHIFT) * (cid_num & 0x1FFFF); ep->qp.ctx_base = ioremap_nocache(reg_base + reg_off, 4); goto arm_cq; } From 48a30569732be782119960a47ca05417e7e07dab Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Wed, 18 Sep 2013 01:50:39 -0700 Subject: [PATCH 268/350] cnic: Fix crash in cnic_bnx2x_service_kcq() commit 104a43edb264321a4d41850e98153b4fa8a9ef42 cnic: Use CHIP_NUM macros from bnx2x.h changed the code to use the bnx2x macro NO_FCOE() to determine if FCoE is supported or not. There is another place in cnic that is still using the old method to determine if FCoE is supported or not. The 2 methods may not yield the same result after the network interface is brought down and up. This will cause the crash as cnic_bnx2x_service_kcq() will access the uninitialized cp->kcq2. The fix is to consistently use the same macro CNIC_SUPPORTS_FCOE() which uses the bnx2x NO_FCOE() macro. As a follow-up, we can clean up the code to remove the old method as it is no longer needed. Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/cnic.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/broadcom/cnic.c b/drivers/net/ethernet/broadcom/cnic.c index 93da16b36df0..99394bd49a13 100644 --- a/drivers/net/ethernet/broadcom/cnic.c +++ b/drivers/net/ethernet/broadcom/cnic.c @@ -3135,6 +3135,7 @@ static void cnic_service_bnx2x_bh(unsigned long data) { struct cnic_dev *dev = (struct cnic_dev *) data; struct cnic_local *cp = dev->cnic_priv; + struct bnx2x *bp = netdev_priv(dev->netdev); u32 status_idx, new_status_idx; if (unlikely(!test_bit(CNIC_F_CNIC_UP, &dev->flags))) @@ -3146,7 +3147,7 @@ static void cnic_service_bnx2x_bh(unsigned long data) CNIC_WR16(dev, cp->kcq1.io_addr, cp->kcq1.sw_prod_idx + MAX_KCQ_IDX); - if (cp->ethdev->drv_state & CNIC_DRV_STATE_NO_FCOE) { + if (!CNIC_SUPPORTS_FCOE(bp)) { cp->arm_int(dev, status_idx); break; } From bd784a140712fd06674f2240eecfc4ccae421129 Mon Sep 17 00:00:00 2001 From: Duan Jiong Date: Wed, 18 Sep 2013 20:03:27 +0800 Subject: [PATCH 269/350] net:dccp: do not report ICMP redirects to user space DCCP shouldn't be setting sk_err on redirects as it isn't an error condition. it should be doing exactly what tcp is doing and leaving the error handler without touching the socket. Signed-off-by: Duan Jiong Signed-off-by: David S. Miller --- net/dccp/ipv6.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c index 9c61f9c02fdb..6cf9f7782ad4 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -135,6 +135,7 @@ static void dccp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt, if (dst) dst->ops->redirect(dst, sk, skb); + goto out; } if (type == ICMPV6_PKT_TOOBIG) { From b42b4f3af8b1ac2f7b09781d523bf918f366d8d6 Mon Sep 17 00:00:00 2001 From: Wu Zhangjin Date: Wed, 10 Nov 2010 00:25:53 +0800 Subject: [PATCH 270/350] MIPS: Remove useless comment about kprobe from arch/mips/Makefile The commit c1bf207d6ee1eb72e9c10365edbdc7c9ff7fb9b0 (kernel.org) rsp. 58e9ad32a48dce37ffeea912f55bd1c94b85ad7f (lmo) [MIPS: kprobe: Add support] introduced a useless comment. Signed-off-by: Wu Zhangjin Cc: linux-mips@linux-mips.org Cc: David Daney Patchwork: https://patchwork.linux-mips.org/patch/1765/ Signed-off-by: Ralf Baechle --- arch/mips/Makefile | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/mips/Makefile b/arch/mips/Makefile index 75a36ad11ff5..ca8f8340d75f 100644 --- a/arch/mips/Makefile +++ b/arch/mips/Makefile @@ -288,9 +288,6 @@ endif vmlinux.32: vmlinux $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ - -#obj-$(CONFIG_KPROBES) += kprobes.o - # # The 64-bit ELF tools are pretty broken so at this time we generate 64-bit # ELF files from 32-bit files by conversion. From 8ff374b9c296b96484d5e63b45b22d0862ffee8f Mon Sep 17 00:00:00 2001 From: "Maciej W. Rozycki" Date: Tue, 17 Sep 2013 16:58:10 +0100 Subject: [PATCH 271/350] MIPS: Cleanup CP0 PRId and CP1 FPIR register access masks Replace hardcoded CP0 PRId and CP1 FPIR register access masks throughout. The change does not touch places that use shifted or partial masks. Signed-off-by: Maciej W. Rozycki Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5838/ Signed-off-by: Ralf Baechle --- arch/mips/alchemy/common/usb.c | 3 +- arch/mips/bcm63xx/cpu.c | 4 +-- arch/mips/include/asm/cpu.h | 38 +++++++++++++++----- arch/mips/include/asm/mach-au1x00/au1000.h | 4 ++- arch/mips/kernel/cpu-probe.c | 42 +++++++++++----------- arch/mips/mm/c-r4k.c | 11 +++--- arch/mips/mti-malta/malta-time.c | 5 +-- arch/mips/mti-sead3/sead3-time.c | 3 +- arch/mips/netlogic/xlr/fmn-config.c | 3 +- arch/mips/sibyte/bcm1480/setup.c | 3 +- arch/mips/sibyte/sb1250/setup.c | 3 +- arch/mips/sni/setup.c | 3 +- 12 files changed, 77 insertions(+), 45 deletions(-) diff --git a/arch/mips/alchemy/common/usb.c b/arch/mips/alchemy/common/usb.c index fcc695626117..2adc7edda49c 100644 --- a/arch/mips/alchemy/common/usb.c +++ b/arch/mips/alchemy/common/usb.c @@ -14,6 +14,7 @@ #include #include #include +#include #include /* control register offsets */ @@ -358,7 +359,7 @@ static inline int au1200_coherency_bug(void) { #if defined(CONFIG_DMA_COHERENT) /* Au1200 AB USB does not support coherent memory */ - if (!(read_c0_prid() & 0xff)) { + if (!(read_c0_prid() & PRID_REV_MASK)) { printk(KERN_INFO "Au1200 USB: this is chip revision AB !!\n"); printk(KERN_INFO "Au1200 USB: update your board or re-configure" " the kernel\n"); diff --git a/arch/mips/bcm63xx/cpu.c b/arch/mips/bcm63xx/cpu.c index 7e17374a9ae8..b713cd64b087 100644 --- a/arch/mips/bcm63xx/cpu.c +++ b/arch/mips/bcm63xx/cpu.c @@ -306,14 +306,14 @@ void __init bcm63xx_cpu_init(void) switch (c->cputype) { case CPU_BMIPS3300: - if ((read_c0_prid() & 0xff00) != PRID_IMP_BMIPS3300_ALT) + if ((read_c0_prid() & PRID_IMP_MASK) != PRID_IMP_BMIPS3300_ALT) __cpu_name[cpu] = "Broadcom BCM6338"; /* fall-through */ case CPU_BMIPS32: chipid_reg = BCM_6345_PERF_BASE; break; case CPU_BMIPS4350: - switch ((read_c0_prid() & 0xff)) { + switch ((read_c0_prid() & PRID_REV_MASK)) { case 0x04: chipid_reg = BCM_3368_PERF_BASE; break; diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h index 71b9f1998be7..d2035e16502a 100644 --- a/arch/mips/include/asm/cpu.h +++ b/arch/mips/include/asm/cpu.h @@ -3,15 +3,14 @@ * various MIPS cpu types. * * Copyright (C) 1996 David S. Miller (davem@davemloft.net) - * Copyright (C) 2004 Maciej W. Rozycki + * Copyright (C) 2004, 2013 Maciej W. Rozycki */ #ifndef _ASM_CPU_H #define _ASM_CPU_H -/* Assigned Company values for bits 23:16 of the PRId Register - (CP0 register 15, select 0). As of the MIPS32 and MIPS64 specs from - MTI, the PRId register is defined in this (backwards compatible) - way: +/* + As of the MIPS32 and MIPS64 specs from MTI, the PRId register (CP0 + register 15, select 0) is defined in this (backwards compatible) way: +----------------+----------------+----------------+----------------+ | Company Options| Company ID | Processor ID | Revision | @@ -23,6 +22,14 @@ spec. */ +#define PRID_OPT_MASK 0xff000000 + +/* + * Assigned Company values for bits 23:16 of the PRId register. + */ + +#define PRID_COMP_MASK 0xff0000 + #define PRID_COMP_LEGACY 0x000000 #define PRID_COMP_MIPS 0x010000 #define PRID_COMP_BROADCOM 0x020000 @@ -38,10 +45,17 @@ #define PRID_COMP_INGENIC 0xd00000 /* - * Assigned values for the product ID register. In order to detect a - * certain CPU type exactly eventually additional registers may need to - * be examined. These are valid when 23:16 == PRID_COMP_LEGACY + * Assigned Processor ID (implementation) values for bits 15:8 of the PRId + * register. In order to detect a certain CPU type exactly eventually + * additional registers may need to be examined. */ + +#define PRID_IMP_MASK 0xff00 + +/* + * These are valid when 23:16 == PRID_COMP_LEGACY + */ + #define PRID_IMP_R2000 0x0100 #define PRID_IMP_AU1_REV1 0x0100 #define PRID_IMP_AU1_REV2 0x0200 @@ -182,11 +196,15 @@ #define PRID_IMP_NETLOGIC_XLP2XX 0x1200 /* - * Definitions for 7:0 on legacy processors + * Particular Revision values for bits 7:0 of the PRId register. */ #define PRID_REV_MASK 0x00ff +/* + * Definitions for 7:0 on legacy processors + */ + #define PRID_REV_TX4927 0x0022 #define PRID_REV_TX4937 0x0030 #define PRID_REV_R4400 0x0040 @@ -227,6 +245,8 @@ * 31 16 15 8 7 0 */ +#define FPIR_IMP_MASK 0xff00 + #define FPIR_IMP_NONE 0x0000 enum cpu_type_enum { diff --git a/arch/mips/include/asm/mach-au1x00/au1000.h b/arch/mips/include/asm/mach-au1x00/au1000.h index 3e11a468cdf8..54f9e84db8ac 100644 --- a/arch/mips/include/asm/mach-au1x00/au1000.h +++ b/arch/mips/include/asm/mach-au1x00/au1000.h @@ -43,6 +43,8 @@ #include #include +#include + /* cpu pipeline flush */ void static inline au_sync(void) { @@ -140,7 +142,7 @@ static inline int au1xxx_cpu_needs_config_od(void) static inline int alchemy_get_cputype(void) { - switch (read_c0_prid() & 0xffff0000) { + switch (read_c0_prid() & (PRID_OPT_MASK | PRID_COMP_MASK)) { case 0x00030000: return ALCHEMY_CPU_AU1000; break; diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 9ef2b049d3c0..9be68091bdf2 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -123,7 +123,7 @@ static inline unsigned long cpu_get_fpu_id(void) */ static inline int __cpu_has_fpu(void) { - return ((cpu_get_fpu_id() & 0xff00) != FPIR_IMP_NONE); + return ((cpu_get_fpu_id() & FPIR_IMP_MASK) != FPIR_IMP_NONE); } static inline void cpu_probe_vmbits(struct cpuinfo_mips *c) @@ -323,7 +323,7 @@ static void decode_configs(struct cpuinfo_mips *c) static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu) { - switch (c->processor_id & 0xff00) { + switch (c->processor_id & PRID_IMP_MASK) { case PRID_IMP_R2000: c->cputype = CPU_R2000; __cpu_name[cpu] = "R2000"; @@ -334,7 +334,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu) c->tlbsize = 64; break; case PRID_IMP_R3000: - if ((c->processor_id & 0xff) == PRID_REV_R3000A) { + if ((c->processor_id & PRID_REV_MASK) == PRID_REV_R3000A) { if (cpu_has_confreg()) { c->cputype = CPU_R3081E; __cpu_name[cpu] = "R3081"; @@ -354,7 +354,8 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu) break; case PRID_IMP_R4000: if (read_c0_config() & CONF_SC) { - if ((c->processor_id & 0xff) >= PRID_REV_R4400) { + if ((c->processor_id & PRID_REV_MASK) >= + PRID_REV_R4400) { c->cputype = CPU_R4400PC; __cpu_name[cpu] = "R4400PC"; } else { @@ -362,7 +363,8 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu) __cpu_name[cpu] = "R4000PC"; } } else { - if ((c->processor_id & 0xff) >= PRID_REV_R4400) { + if ((c->processor_id & PRID_REV_MASK) >= + PRID_REV_R4400) { c->cputype = CPU_R4400SC; __cpu_name[cpu] = "R4400SC"; } else { @@ -455,7 +457,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu) __cpu_name[cpu] = "TX3927"; c->tlbsize = 64; } else { - switch (c->processor_id & 0xff) { + switch (c->processor_id & PRID_REV_MASK) { case PRID_REV_TX3912: c->cputype = CPU_TX3912; __cpu_name[cpu] = "TX3912"; @@ -641,7 +643,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu) static inline void cpu_probe_mips(struct cpuinfo_mips *c, unsigned int cpu) { decode_configs(c); - switch (c->processor_id & 0xff00) { + switch (c->processor_id & PRID_IMP_MASK) { case PRID_IMP_4KC: c->cputype = CPU_4KC; __cpu_name[cpu] = "MIPS 4Kc"; @@ -712,7 +714,7 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c, unsigned int cpu) static inline void cpu_probe_alchemy(struct cpuinfo_mips *c, unsigned int cpu) { decode_configs(c); - switch (c->processor_id & 0xff00) { + switch (c->processor_id & PRID_IMP_MASK) { case PRID_IMP_AU1_REV1: case PRID_IMP_AU1_REV2: c->cputype = CPU_ALCHEMY; @@ -731,7 +733,7 @@ static inline void cpu_probe_alchemy(struct cpuinfo_mips *c, unsigned int cpu) break; case 4: __cpu_name[cpu] = "Au1200"; - if ((c->processor_id & 0xff) == 2) + if ((c->processor_id & PRID_REV_MASK) == 2) __cpu_name[cpu] = "Au1250"; break; case 5: @@ -749,12 +751,12 @@ static inline void cpu_probe_sibyte(struct cpuinfo_mips *c, unsigned int cpu) { decode_configs(c); - switch (c->processor_id & 0xff00) { + switch (c->processor_id & PRID_IMP_MASK) { case PRID_IMP_SB1: c->cputype = CPU_SB1; __cpu_name[cpu] = "SiByte SB1"; /* FPU in pass1 is known to have issues. */ - if ((c->processor_id & 0xff) < 0x02) + if ((c->processor_id & PRID_REV_MASK) < 0x02) c->options &= ~(MIPS_CPU_FPU | MIPS_CPU_32FPR); break; case PRID_IMP_SB1A: @@ -767,7 +769,7 @@ static inline void cpu_probe_sibyte(struct cpuinfo_mips *c, unsigned int cpu) static inline void cpu_probe_sandcraft(struct cpuinfo_mips *c, unsigned int cpu) { decode_configs(c); - switch (c->processor_id & 0xff00) { + switch (c->processor_id & PRID_IMP_MASK) { case PRID_IMP_SR71000: c->cputype = CPU_SR71000; __cpu_name[cpu] = "Sandcraft SR71000"; @@ -780,7 +782,7 @@ static inline void cpu_probe_sandcraft(struct cpuinfo_mips *c, unsigned int cpu) static inline void cpu_probe_nxp(struct cpuinfo_mips *c, unsigned int cpu) { decode_configs(c); - switch (c->processor_id & 0xff00) { + switch (c->processor_id & PRID_IMP_MASK) { case PRID_IMP_PR4450: c->cputype = CPU_PR4450; __cpu_name[cpu] = "Philips PR4450"; @@ -792,7 +794,7 @@ static inline void cpu_probe_nxp(struct cpuinfo_mips *c, unsigned int cpu) static inline void cpu_probe_broadcom(struct cpuinfo_mips *c, unsigned int cpu) { decode_configs(c); - switch (c->processor_id & 0xff00) { + switch (c->processor_id & PRID_IMP_MASK) { case PRID_IMP_BMIPS32_REV4: case PRID_IMP_BMIPS32_REV8: c->cputype = CPU_BMIPS32; @@ -807,7 +809,7 @@ static inline void cpu_probe_broadcom(struct cpuinfo_mips *c, unsigned int cpu) set_elf_platform(cpu, "bmips3300"); break; case PRID_IMP_BMIPS43XX: { - int rev = c->processor_id & 0xff; + int rev = c->processor_id & PRID_REV_MASK; if (rev >= PRID_REV_BMIPS4380_LO && rev <= PRID_REV_BMIPS4380_HI) { @@ -833,7 +835,7 @@ static inline void cpu_probe_broadcom(struct cpuinfo_mips *c, unsigned int cpu) static inline void cpu_probe_cavium(struct cpuinfo_mips *c, unsigned int cpu) { decode_configs(c); - switch (c->processor_id & 0xff00) { + switch (c->processor_id & PRID_IMP_MASK) { case PRID_IMP_CAVIUM_CN38XX: case PRID_IMP_CAVIUM_CN31XX: case PRID_IMP_CAVIUM_CN30XX: @@ -876,7 +878,7 @@ static inline void cpu_probe_ingenic(struct cpuinfo_mips *c, unsigned int cpu) decode_configs(c); /* JZRISC does not implement the CP0 counter. */ c->options &= ~MIPS_CPU_COUNTER; - switch (c->processor_id & 0xff00) { + switch (c->processor_id & PRID_IMP_MASK) { case PRID_IMP_JZRISC: c->cputype = CPU_JZRISC; __cpu_name[cpu] = "Ingenic JZRISC"; @@ -891,7 +893,7 @@ static inline void cpu_probe_netlogic(struct cpuinfo_mips *c, int cpu) { decode_configs(c); - if ((c->processor_id & 0xff00) == PRID_IMP_NETLOGIC_AU13XX) { + if ((c->processor_id & PRID_IMP_MASK) == PRID_IMP_NETLOGIC_AU13XX) { c->cputype = CPU_ALCHEMY; __cpu_name[cpu] = "Au1300"; /* following stuff is not for Alchemy */ @@ -906,7 +908,7 @@ static inline void cpu_probe_netlogic(struct cpuinfo_mips *c, int cpu) MIPS_CPU_EJTAG | MIPS_CPU_LLSC); - switch (c->processor_id & 0xff00) { + switch (c->processor_id & PRID_IMP_MASK) { case PRID_IMP_NETLOGIC_XLP2XX: c->cputype = CPU_XLP; __cpu_name[cpu] = "Broadcom XLPII"; @@ -985,7 +987,7 @@ void cpu_probe(void) c->cputype = CPU_UNKNOWN; c->processor_id = read_c0_prid(); - switch (c->processor_id & 0xff0000) { + switch (c->processor_id & PRID_COMP_MASK) { case PRID_COMP_LEGACY: cpu_probe_legacy(c, cpu); break; diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index 73ca8c52e83f..ae500ca76580 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -792,12 +792,12 @@ static inline void alias_74k_erratum(struct cpuinfo_mips *c) * aliases. In this case it is better to treat the cache as always * having aliases. */ - if ((c->processor_id & 0xff) <= PRID_REV_ENCODE_332(2, 4, 0)) + if ((c->processor_id & PRID_REV_MASK) <= PRID_REV_ENCODE_332(2, 4, 0)) c->dcache.flags |= MIPS_CACHE_VTAG; - if ((c->processor_id & 0xff) == PRID_REV_ENCODE_332(2, 4, 0)) + if ((c->processor_id & PRID_REV_MASK) == PRID_REV_ENCODE_332(2, 4, 0)) write_c0_config6(read_c0_config6() | MIPS_CONF6_SYND); - if (((c->processor_id & 0xff00) == PRID_IMP_1074K) && - ((c->processor_id & 0xff) <= PRID_REV_ENCODE_332(1, 1, 0))) { + if ((c->processor_id & PRID_IMP_MASK) == PRID_IMP_1074K && + (c->processor_id & PRID_REV_MASK) <= PRID_REV_ENCODE_332(1, 1, 0)) { c->dcache.flags |= MIPS_CACHE_VTAG; write_c0_config6(read_c0_config6() | MIPS_CONF6_SYND); } @@ -1031,7 +1031,8 @@ static void probe_pcache(void) * presumably no vendor is shipping his hardware in the "bad" * configuration. */ - if ((prid & 0xff00) == PRID_IMP_R4000 && (prid & 0xff) < 0x40 && + if ((prid & PRID_IMP_MASK) == PRID_IMP_R4000 && + (prid & PRID_REV_MASK) < PRID_REV_R4400 && !(config & CONF_SC) && c->icache.linesz != 16 && PAGE_SIZE <= 0x8000) panic("Improper R4000SC processor configuration detected"); diff --git a/arch/mips/mti-malta/malta-time.c b/arch/mips/mti-malta/malta-time.c index 53aad4a35375..a18af5fce67e 100644 --- a/arch/mips/mti-malta/malta-time.c +++ b/arch/mips/mti-malta/malta-time.c @@ -27,6 +27,7 @@ #include #include +#include #include #include #include @@ -76,7 +77,7 @@ static void __init estimate_frequencies(void) #endif #if defined (CONFIG_KVM_GUEST) && defined (CONFIG_KVM_HOST_FREQ) - unsigned int prid = read_c0_prid() & 0xffff00; + unsigned int prid = read_c0_prid() & (PRID_COMP_MASK | PRID_IMP_MASK); /* * XXXKYMA: hardwire the CPU frequency to Host Freq/4 @@ -169,7 +170,7 @@ unsigned int get_c0_compare_int(void) void __init plat_time_init(void) { - unsigned int prid = read_c0_prid() & 0xffff00; + unsigned int prid = read_c0_prid() & (PRID_COMP_MASK | PRID_IMP_MASK); unsigned int freq; estimate_frequencies(); diff --git a/arch/mips/mti-sead3/sead3-time.c b/arch/mips/mti-sead3/sead3-time.c index a43ea3cc0a3b..552d26c34386 100644 --- a/arch/mips/mti-sead3/sead3-time.c +++ b/arch/mips/mti-sead3/sead3-time.c @@ -7,6 +7,7 @@ */ #include +#include #include #include #include @@ -34,7 +35,7 @@ static void __iomem *status_reg = (void __iomem *)0xbf000410; */ static unsigned int __init estimate_cpu_frequency(void) { - unsigned int prid = read_c0_prid() & 0xffff00; + unsigned int prid = read_c0_prid() & (PRID_COMP_MASK | PRID_IMP_MASK); unsigned int tick = 0; unsigned int freq; unsigned int orig; diff --git a/arch/mips/netlogic/xlr/fmn-config.c b/arch/mips/netlogic/xlr/fmn-config.c index ed3bf0e3f309..c7622c6e5f67 100644 --- a/arch/mips/netlogic/xlr/fmn-config.c +++ b/arch/mips/netlogic/xlr/fmn-config.c @@ -36,6 +36,7 @@ #include #include +#include #include #include #include @@ -187,7 +188,7 @@ void xlr_board_info_setup(void) int processor_id, num_core; num_core = hweight32(nlm_current_node()->coremask); - processor_id = read_c0_prid() & 0xff00; + processor_id = read_c0_prid() & PRID_IMP_MASK; setup_cpu_fmninfo(cpu, num_core); switch (processor_id) { diff --git a/arch/mips/sibyte/bcm1480/setup.c b/arch/mips/sibyte/bcm1480/setup.c index 05ed92c92b69..8e2e04f77870 100644 --- a/arch/mips/sibyte/bcm1480/setup.c +++ b/arch/mips/sibyte/bcm1480/setup.c @@ -22,6 +22,7 @@ #include #include +#include #include #include #include @@ -119,7 +120,7 @@ void __init bcm1480_setup(void) uint64_t sys_rev; int plldiv; - sb1_pass = read_c0_prid() & 0xff; + sb1_pass = read_c0_prid() & PRID_REV_MASK; sys_rev = __raw_readq(IOADDR(A_SCD_SYSTEM_REVISION)); soc_type = SYS_SOC_TYPE(sys_rev); part_type = G_SYS_PART(sys_rev); diff --git a/arch/mips/sibyte/sb1250/setup.c b/arch/mips/sibyte/sb1250/setup.c index a14bd4cb0bc0..3c02b2a77ae9 100644 --- a/arch/mips/sibyte/sb1250/setup.c +++ b/arch/mips/sibyte/sb1250/setup.c @@ -22,6 +22,7 @@ #include #include +#include #include #include #include @@ -182,7 +183,7 @@ void __init sb1250_setup(void) int plldiv; int bad_config = 0; - sb1_pass = read_c0_prid() & 0xff; + sb1_pass = read_c0_prid() & PRID_REV_MASK; sys_rev = __raw_readq(IOADDR(A_SCD_SYSTEM_REVISION)); soc_type = SYS_SOC_TYPE(sys_rev); soc_pass = G_SYS_REVISION(sys_rev); diff --git a/arch/mips/sni/setup.c b/arch/mips/sni/setup.c index 5b09b3544edd..efad85c8c823 100644 --- a/arch/mips/sni/setup.c +++ b/arch/mips/sni/setup.c @@ -25,6 +25,7 @@ #endif #include +#include #include #include #include @@ -173,7 +174,7 @@ void __init plat_mem_setup(void) system_type = "RM300-Cxx"; break; case SNI_BRD_PCI_DESKTOP: - switch (read_c0_prid() & 0xff00) { + switch (read_c0_prid() & PRID_IMP_MASK) { case PRID_IMP_R4600: case PRID_IMP_R4700: system_type = "RM200-C20"; From 9213ad77070ea75fc3a5e43e3d9e9c4146e4930a Mon Sep 17 00:00:00 2001 From: "Maciej W. Rozycki" Date: Wed, 18 Sep 2013 19:08:15 +0100 Subject: [PATCH 272/350] MIPS: 74K/1074K: Correct erratum workaround. Make sure 74K revision numbers are not applied to the 1074K. Also catch invalid usage. Signed-off-by: Maciej W. Rozycki Cc: Steven J. Hill Cc: Leonid Yegoshin Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5857/ Signed-off-by: Ralf Baechle --- arch/mips/mm/c-r4k.c | 26 ++++++++++++++++++-------- 1 file changed, 18 insertions(+), 8 deletions(-) diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index ae500ca76580..627883bc6d5f 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -786,20 +786,30 @@ static inline void rm7k_erratum31(void) static inline void alias_74k_erratum(struct cpuinfo_mips *c) { + unsigned int imp = c->processor_id & PRID_IMP_MASK; + unsigned int rev = c->processor_id & PRID_REV_MASK; + /* * Early versions of the 74K do not update the cache tags on a * vtag miss/ptag hit which can occur in the case of KSEG0/KUSEG * aliases. In this case it is better to treat the cache as always * having aliases. */ - if ((c->processor_id & PRID_REV_MASK) <= PRID_REV_ENCODE_332(2, 4, 0)) - c->dcache.flags |= MIPS_CACHE_VTAG; - if ((c->processor_id & PRID_REV_MASK) == PRID_REV_ENCODE_332(2, 4, 0)) - write_c0_config6(read_c0_config6() | MIPS_CONF6_SYND); - if ((c->processor_id & PRID_IMP_MASK) == PRID_IMP_1074K && - (c->processor_id & PRID_REV_MASK) <= PRID_REV_ENCODE_332(1, 1, 0)) { - c->dcache.flags |= MIPS_CACHE_VTAG; - write_c0_config6(read_c0_config6() | MIPS_CONF6_SYND); + switch (imp) { + case PRID_IMP_74K: + if (rev <= PRID_REV_ENCODE_332(2, 4, 0)) + c->dcache.flags |= MIPS_CACHE_VTAG; + if (rev == PRID_REV_ENCODE_332(2, 4, 0)) + write_c0_config6(read_c0_config6() | MIPS_CONF6_SYND); + break; + case PRID_IMP_1074K: + if (rev <= PRID_REV_ENCODE_332(1, 1, 0)) { + c->dcache.flags |= MIPS_CACHE_VTAG; + write_c0_config6(read_c0_config6() | MIPS_CONF6_SYND); + } + break; + default: + BUG(); } } From db10e201172f48dad29d81ee1fec96384f0eab35 Mon Sep 17 00:00:00 2001 From: Josh Wu Date: Tue, 27 Aug 2013 12:28:00 +0100 Subject: [PATCH 273/350] iio: at91: fix adc_clk overflow The adc_clk variable is currently defined using a 32-bits unsigned integer, which will overflow under some very valid range of operations. Such overflow will occur if, for example, the parent clock is set to a 20MHz frequency and the ADC startup time is larger than 215ns. To fix this, introduce an intermediate variable holding the clock rate in kHz. Signed-off-by: Josh Wu Acked-by: Maxime Ripard Signed-off-by: Jonathan Cameron --- drivers/iio/adc/at91_adc.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c index 84be63bdf038..0f16b553e063 100644 --- a/drivers/iio/adc/at91_adc.c +++ b/drivers/iio/adc/at91_adc.c @@ -556,7 +556,7 @@ static const struct iio_info at91_adc_info = { static int at91_adc_probe(struct platform_device *pdev) { - unsigned int prsc, mstrclk, ticks, adc_clk, shtim; + unsigned int prsc, mstrclk, ticks, adc_clk, adc_clk_khz, shtim; int ret; struct iio_dev *idev; struct at91_adc_state *st; @@ -649,6 +649,7 @@ static int at91_adc_probe(struct platform_device *pdev) */ mstrclk = clk_get_rate(st->clk); adc_clk = clk_get_rate(st->adc_clk); + adc_clk_khz = adc_clk / 1000; prsc = (mstrclk / (2 * adc_clk)) - 1; if (!st->startup_time) { @@ -662,15 +663,15 @@ static int at91_adc_probe(struct platform_device *pdev) * defined in the electrical characteristics of the board, divided by 8. * The formula thus is : Startup Time = (ticks + 1) * 8 / ADC Clock */ - ticks = round_up((st->startup_time * adc_clk / - 1000000) - 1, 8) / 8; + ticks = round_up((st->startup_time * adc_clk_khz / + 1000) - 1, 8) / 8; /* * a minimal Sample and Hold Time is necessary for the ADC to guarantee * the best converted final value between two channels selection * The formula thus is : Sample and Hold Time = (shtim + 1) / ADCClock */ - shtim = round_up((st->sample_hold_time * adc_clk / - 1000000) - 1, 1); + shtim = round_up((st->sample_hold_time * adc_clk_khz / + 1000) - 1, 1); reg = AT91_ADC_PRESCAL_(prsc) & st->registers->mr_prescal_mask; reg |= AT91_ADC_STARTUP_(ticks) & st->registers->mr_startup_mask; From c919095657781bfa58453842f1dd656857b97f84 Mon Sep 17 00:00:00 2001 From: Jonathan Cameron Date: Sun, 1 Sep 2013 18:55:00 +0100 Subject: [PATCH 274/350] staging:iio:dummy fix kfifo_buf kconfig dependency issue if kfifo modular and buffer enabled for built in dummy driver. This only occurs in the unlikely event that the example driver is built in whilst the buffer implementation is not. Solved by switching from a depends on to a select for this particular case. Reported-by: Fengguang Wu Reported-by: Randy Dunlap Acked-by: Randy Dunlap Signed-off-by: Jonathan Cameron --- drivers/staging/iio/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/iio/Kconfig b/drivers/staging/iio/Kconfig index db4d6dc03243..b36feb080cba 100644 --- a/drivers/staging/iio/Kconfig +++ b/drivers/staging/iio/Kconfig @@ -37,7 +37,7 @@ config IIO_SIMPLE_DUMMY_EVENTS config IIO_SIMPLE_DUMMY_BUFFER boolean "Buffered capture support" - depends on IIO_KFIFO_BUF + select IIO_KFIFO_BUF help Add buffered data capture to the simple dummy driver. From 5e64897638169d13f1637eecdaf8cb8512c4a3a1 Mon Sep 17 00:00:00 2001 From: Derek Basehore Date: Thu, 29 Aug 2013 21:14:00 +0100 Subject: [PATCH 275/350] iio: isl29018: Fix uninitialized value The lux_uscale value is not initialized at probe. The value will be uninitialized unless a value is written to it through the iio channel interface. This fixes that. Signed-off-by: Derek Basehore Reviewed-on: https://gerrit.chromium.org/gerrit/65998 Signed-off-by: Jonathan Cameron --- drivers/staging/iio/light/isl29018.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/staging/iio/light/isl29018.c b/drivers/staging/iio/light/isl29018.c index 351936c3efd6..e4998e4d4434 100644 --- a/drivers/staging/iio/light/isl29018.c +++ b/drivers/staging/iio/light/isl29018.c @@ -563,6 +563,7 @@ static int isl29018_probe(struct i2c_client *client, mutex_init(&chip->lock); chip->lux_scale = 1; + chip->lux_uscale = 0; chip->range = 1000; chip->adc_bit = 16; chip->suspended = false; From 575a6c90c190efabc829a8a9109f5036edaf1a82 Mon Sep 17 00:00:00 2001 From: Peter Meerwald Date: Tue, 3 Sep 2013 02:05:00 +0100 Subject: [PATCH 276/350] staging:iio:hmc5843: Fix measurement conversion recently broken, cd6fe06588423ff4cca85c85c4402027b04dccf1 staging:iio:hmc5843: Use i2c_smbus_read_word_swapped() Signed-off-by: Peter Meerwald Signed-off-by: Jonathan Cameron --- drivers/staging/iio/magnetometer/hmc5843.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c index d2748c329eae..c3f3f539e787 100644 --- a/drivers/staging/iio/magnetometer/hmc5843.c +++ b/drivers/staging/iio/magnetometer/hmc5843.c @@ -229,7 +229,7 @@ static int hmc5843_read_measurement(struct iio_dev *indio_dev, if (result < 0) return -EINVAL; - *val = result; + *val = sign_extend32(result, 15); return IIO_VAL_INT; } From 40e23ced937aab63b6191ce0e8083bfe09847423 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Wed, 11 Sep 2013 10:32:00 +0100 Subject: [PATCH 277/350] staging: iio: ade7854-spi: Fix return value ade7854_probe can fail. Return the value obtained from it instead of 0 (success). Signed-off-by: Sachin Kamat Cc: Barry Song <21cnbao@gmail.com> Signed-off-by: Jonathan Cameron --- drivers/staging/iio/meter/ade7854-spi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/iio/meter/ade7854-spi.c b/drivers/staging/iio/meter/ade7854-spi.c index a802cf2491d6..4c6d2041260b 100644 --- a/drivers/staging/iio/meter/ade7854-spi.c +++ b/drivers/staging/iio/meter/ade7854-spi.c @@ -299,7 +299,7 @@ static int ade7854_spi_probe(struct spi_device *spi) if (ret) iio_device_free(indio_dev); - return 0; + return ret; } static int ade7854_spi_remove(struct spi_device *spi) From 2b0774df40d7ceed9bda3423d436d9fea30fb281 Mon Sep 17 00:00:00 2001 From: Lukasz Czerwinski Date: Wed, 18 Sep 2013 10:21:00 +0100 Subject: [PATCH 278/350] iio: iio_device_add_event_sysfs() bugfix Fix mask generation for modified channels. Signed-off-by: Lukasz Czerwinski Signed-off-by: Jonathan Cameron --- drivers/iio/industrialio-event.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c index 10aa9ef86cec..f146acd12737 100644 --- a/drivers/iio/industrialio-event.c +++ b/drivers/iio/industrialio-event.c @@ -276,7 +276,7 @@ static int iio_device_add_event_sysfs(struct iio_dev *indio_dev, goto error_ret; } if (chan->modified) - mask = IIO_MOD_EVENT_CODE(chan->type, 0, chan->channel, + mask = IIO_MOD_EVENT_CODE(chan->type, 0, chan->channel2, i/IIO_EV_DIR_MAX, i%IIO_EV_DIR_MAX); else if (chan->differential) From 2cfeed314207f808077edb2f1ba41ba1ebbe3e69 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 18 Sep 2013 12:01:58 -0700 Subject: [PATCH 279/350] ARM: OMAP4: Fix clock_get error for GPMC during boot Looks like we still have the legacy clock alias name for omap4 GPMC (General Purpose Memory Controller), so let's fix it for the device tree naming. There's no need to keep the legacy naming as omap4 is DT only nowadays. Without this fix we get the following error while booting: [ 0.440399] omap-gpmc 50000000.gpmc: error: clk_get Reported-by: Olof Johansson Cc: stable@vger.kernel.org # v3.11 Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/cclock44xx_data.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/cclock44xx_data.c b/arch/arm/mach-omap2/cclock44xx_data.c index 1d5b5290d2af..b237950eb8a3 100644 --- a/arch/arm/mach-omap2/cclock44xx_data.c +++ b/arch/arm/mach-omap2/cclock44xx_data.c @@ -1632,7 +1632,7 @@ static struct omap_clk omap44xx_clks[] = { CLK(NULL, "auxclk5_src_ck", &auxclk5_src_ck), CLK(NULL, "auxclk5_ck", &auxclk5_ck), CLK(NULL, "auxclkreq5_ck", &auxclkreq5_ck), - CLK("omap-gpmc", "fck", &dummy_ck), + CLK("50000000.gpmc", "fck", &dummy_ck), CLK("omap_i2c.1", "ick", &dummy_ck), CLK("omap_i2c.2", "ick", &dummy_ck), CLK("omap_i2c.3", "ick", &dummy_ck), From 4cf9cf8967f0316722c6cb4ebf8093b74a8e1dd6 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Wed, 18 Sep 2013 12:01:58 -0700 Subject: [PATCH 280/350] ARM: OMAP: fix return value check in omap_device_build_from_dt() In case of error, the function omap_device_alloc() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Signed-off-by: Wei Yongjun Acked-by: Kevin Hilman Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/omap_device.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_device.c index f99f68e1e85b..b69dd9abb50a 100644 --- a/arch/arm/mach-omap2/omap_device.c +++ b/arch/arm/mach-omap2/omap_device.c @@ -158,7 +158,7 @@ static int omap_device_build_from_dt(struct platform_device *pdev) } od = omap_device_alloc(pdev, hwmods, oh_cnt); - if (!od) { + if (IS_ERR(od)) { dev_err(&pdev->dev, "Cannot allocate omap_device for :%s\n", oh_name); ret = PTR_ERR(od); From f70bf2a3fdc1d8c53d1c3b1d84a72d71a17606a1 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Wed, 18 Sep 2013 12:01:59 -0700 Subject: [PATCH 281/350] ARM: mach-omap2: gpmc: Fix warning when CONFIG_ARM_LPAE=y When CONFIG_ARM_LPAE=y the following build warning is generated: arch/arm/mach-omap2/gpmc.c:1495:4: warning: format '%x' expects argument of type 'unsigned int', but argument 4 has type 'resource_size_t' [-Wformat] According to Documentation/printk-formats.txt '%pa' can be used to properly print 'resource_size_t'. Reported-by: Kevin Hilman Signed-off-by: Fabio Estevam Acked-by: Kevin Hilman Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/gpmc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c index 9f4795aff48a..579697adaae7 100644 --- a/arch/arm/mach-omap2/gpmc.c +++ b/arch/arm/mach-omap2/gpmc.c @@ -1491,8 +1491,8 @@ static int gpmc_probe_generic_child(struct platform_device *pdev, */ ret = gpmc_cs_remap(cs, res.start); if (ret < 0) { - dev_err(&pdev->dev, "cannot remap GPMC CS %d to 0x%x\n", - cs, res.start); + dev_err(&pdev->dev, "cannot remap GPMC CS %d to %pa\n", + cs, &res.start); goto err; } From d287c1d03a4a29c0a1f954ea4c4cad55bc74ae40 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Wed, 18 Sep 2013 12:02:00 -0700 Subject: [PATCH 282/350] mailbox: remove unnecessary platform_set_drvdata() The driver core clears the driver data to NULL after device_release or on probe failure. Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han Acked-by: Suman Anna Signed-off-by: Tony Lindgren --- drivers/mailbox/mailbox-omap2.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/mailbox/mailbox-omap2.c b/drivers/mailbox/mailbox-omap2.c index eba380d7b17f..42d2b893ea67 100644 --- a/drivers/mailbox/mailbox-omap2.c +++ b/drivers/mailbox/mailbox-omap2.c @@ -325,7 +325,6 @@ static int omap2_mbox_remove(struct platform_device *pdev) kfree(privblk); kfree(mboxblk); kfree(list); - platform_set_drvdata(pdev, NULL); return 0; } From 783502719cdf066fcb91f37c77728916730ae60f Mon Sep 17 00:00:00 2001 From: Vladimir Murzin Date: Wed, 18 Sep 2013 12:02:00 -0700 Subject: [PATCH 283/350] ARM: OMAP4: cpuidle: fix: call cpu_cluster_pm_exit conditionally We call cpu_cluster_pm_enter for dev->cpu == 0 only, but cpu_cluster_pm_exit called without that check. Because of that unhandled page fault may happen: [ 3.803405] Unable to handle kernel paging request at virtual address 00002500 [ 3.810974] pgd = c0004000 [ 3.813812] [00002500] *pgd=00000000 [ 3.817596] Internal error: Oops: 5 [#1] SMP ARM [ 3.822418] Modules linked in: [ 3.825653] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.11.0-rc6+ #21 [ 3.832397] task: ed86ef40 ti: ed896000 task.ti: ed896000 [ 3.838073] PC is at irq_notifier+0x234/0x25c [ 3.842651] LR is at irq_notifier+0x218/0x25c [ 3.847229] pc : [] lr : [] psr: 80000193 [ 3.847229] sp : ed897ee8 ip : 00000005 fp : 00000001 [ 3.859283] r10: c0b395f0 r9 : c0b30594 r8 : c0b8c2ac [ 3.864776] r7 : ffffffff r6 : 00000000 r5 : 00000005 r4 : 00000000 [ 3.871643] r3 : 00002500 r2 : 00000000 r1 : 00000005 r0 : 44302244 [ 3.878479] Flags: Nzcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel [ 3.886260] Control: 10c5387d Table: 8000404a DAC: 00000015 [ 3.892272] Process swapper/1 (pid: 0, stack limit = 0xed896240) [ 3.898590] Stack: (0xed897ee8 to 0xed898000) [ 3.903167] 7ee0: c0979c3a 00000001 ed897ef8 ed896000 c0014f7c 00000000 [ 3.911743] 7f00: 00000005 00000000 ffffffff c0b8c2ac c0b395f0 c077c04c c0c94b48 c0b3953c [ 3.920318] 7f20: c0bcd928 00000002 c0b39524 c00cfad8 00000000 ffffffff 00000000 c00cfb10 [ 3.928924] 7f40: c14e62c0 c002c1c8 c002c0ac c14e62c0 00000002 e251c37d 00000000 c0b39548 [ 3.937499] 7f60: c0b395f0 c05a1bc4 e251c37d 00000000 00000005 c05a3870 edc90380 edc90380 [ 3.946105] 7f80: edc90394 c14e62c0 c0b39548 00000002 c0784064 c05a3c78 c0b395e0 c14e62c0 [ 3.954681] 7fa0: 00000002 c0b39548 c0bc9db8 00000000 00000001 c05a1dc0 ed896000 00000015 [ 3.963287] 7fc0: c0bc9db8 ed896000 8000406a c0b30594 c0784064 c000e504 00000746 c007a528 [ 3.971862] 7fe0: 00000001 0000001d 600001d3 c0bcc004 00000000 800086c4 ee0aa6a7 d2aabaa9 [ 3.980499] [] (irq_notifier+0x234/0x25c) from [] (notifier_call_chain+0x38/0x68) [ 3.990173] [] (notifier_call_chain+0x38/0x68) from [] (cpu_pm_notify+0x20/0x38) [ 3.999786] [] (cpu_pm_notify+0x20/0x38) from [] (cpu_cluster_pm_exit+0x20/0x50) [ 4.009399] [] (cpu_cluster_pm_exit+0x20/0x50) from [] (omap_enter_idle_coupled+0x11c/0x14c) [ 4.020111] [] (omap_enter_idle_coupled+0x11c/0x14c) from [] (cpuidle_enter_state+0x40/0xec) [ 4.030822] [] (cpuidle_enter_state+0x40/0xec) from [] (cpuidle_enter_state_coupled+0x1f4/0x240) [ 4.041870] [] (cpuidle_enter_state_coupled+0x1f4/0x240) from [] (cpuidle_idle_call+0x150/0x228) [ 4.052947] [] (cpuidle_idle_call+0x150/0x228) from [] (arch_cpu_idle+0x8/0x38) [ 4.062499] [] (arch_cpu_idle+0x8/0x38) from [] (cpu_startup_entry+0x178/0x1e4) [ 4.071990] [] (cpu_startup_entry+0x178/0x1e4) from [<800086c4>] (0x800086c4) [ 4.080383] Code: e5922288 03a03b0a 13a03c25 e0823003 (e5932000) [ 4.086791] ---[ end trace d83954a84a6fa69e ]--- It is supposed that sar_base is initialized in irq_save_context, which is called on CPU_CLUSTER_PM_ENTER notification. If this notification has been missed and CPU_CLUSTER_PM_EXIT is received sar_base is NULL. Fix it by calling CPU_CLUSTER_PM_{ENTER,EXIT} under the same condition. Signed-off-by: Vladimir Murzin Acked-by: Kevin Hilman Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/cpuidle44xx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/cpuidle44xx.c b/arch/arm/mach-omap2/cpuidle44xx.c index c443f2e97e10..4c8982ae9529 100644 --- a/arch/arm/mach-omap2/cpuidle44xx.c +++ b/arch/arm/mach-omap2/cpuidle44xx.c @@ -143,7 +143,7 @@ static int omap_enter_idle_coupled(struct cpuidle_device *dev, * Call idle CPU cluster PM exit notifier chain * to restore GIC and wakeupgen context. */ - if ((cx->mpu_state == PWRDM_POWER_RET) && + if (dev->cpu == 0 && (cx->mpu_state == PWRDM_POWER_RET) && (cx->mpu_logic_state == PWRDM_POWER_OFF)) cpu_cluster_pm_exit(); From b6b2485214d2b6af534ae433b588c0bb76fe78af Mon Sep 17 00:00:00 2001 From: Anoop Thomas Mathew Date: Wed, 18 Sep 2013 12:02:00 -0700 Subject: [PATCH 284/350] ARM: OMAP4 SMP: Corrected a typo fucntions to functions Corrected the functions spelling mistake in the OMAP4 SMP source file. Signed-off-by: Anoop Thomas Mathew Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/omap-smp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c index 8708b2a9da45..891211093295 100644 --- a/arch/arm/mach-omap2/omap-smp.c +++ b/arch/arm/mach-omap2/omap-smp.c @@ -1,5 +1,5 @@ /* - * OMAP4 SMP source file. It contains platform specific fucntions + * OMAP4 SMP source file. It contains platform specific functions * needed for the linux smp kernel. * * Copyright (C) 2009 Texas Instruments, Inc. From e942cc06e2d183975dd47d8da9e569316cb870ea Mon Sep 17 00:00:00 2001 From: Phil Carmody Date: Wed, 18 Sep 2013 12:02:01 -0700 Subject: [PATCH 285/350] ARM: OMAP2+: mux: fix trivial typo in name Fix trivial typo in name. Signed-off-by: Phil Carmody Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/mux34xx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/mux34xx.c b/arch/arm/mach-omap2/mux34xx.c index c53609f46294..be271f1d585b 100644 --- a/arch/arm/mach-omap2/mux34xx.c +++ b/arch/arm/mach-omap2/mux34xx.c @@ -620,7 +620,7 @@ static struct omap_mux __initdata omap3_muxmodes[] = { "uart1_rts", "ssi1_flag_tx", NULL, NULL, "gpio_149", NULL, NULL, "safe_mode"), _OMAP3_MUXENTRY(UART1_RX, 151, - "uart1_rx", "ss1_wake_tx", "mcbsp1_clkr", "mcspi4_clk", + "uart1_rx", "ssi1_wake_tx", "mcbsp1_clkr", "mcspi4_clk", "gpio_151", NULL, NULL, "safe_mode"), _OMAP3_MUXENTRY(UART1_TX, 148, "uart1_tx", "ssi1_dat_tx", NULL, NULL, From 3244aae5757d1117113a78ddb9f97845d5a4e49a Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 16 Sep 2013 14:22:32 +0200 Subject: [PATCH 286/350] ARM: multi_v7: add HREFv60 to multi_v7 defconfig This is just a standard board for the Ux500, include it in the v7 multiplatform defconfig. Signed-off-by: Linus Walleij Signed-off-by: Olof Johansson --- arch/arm/configs/multi_v7_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig index aba4ec728651..f3935b46df29 100644 --- a/arch/arm/configs/multi_v7_defconfig +++ b/arch/arm/configs/multi_v7_defconfig @@ -36,6 +36,7 @@ CONFIG_ARCH_TEGRA_114_SOC=y CONFIG_TEGRA_PCI=y CONFIG_TEGRA_EMC_SCALING_ENABLE=y CONFIG_ARCH_U8500=y +CONFIG_MACH_HREFV60=y CONFIG_MACH_SNOWBALL=y CONFIG_MACH_UX500_DT=y CONFIG_ARCH_VEXPRESS=y From 4c2924b725fb35d3acc6367d500458d70cdd09a9 Mon Sep 17 00:00:00 2001 From: Wolfgang Grandegger Date: Mon, 13 Dec 2010 21:48:10 +0100 Subject: [PATCH 287/350] MIPS: PCI: Use pci_resource_to_user to map pci memory space properly [ralf@linux-mips.org: This only matters to Alchemy platforms. On other platforms fixup_bigphys_addr is just an identidy mapping.] Signed-off-by: Wolfgang Grandegger Cc: tiejun.chen Cc: Linux-MIPS Patchwork: https://patchwork.linux-mips.org/patch/1868/ Signed-off-by: Ralf Baechle --- arch/mips/include/asm/pci.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/mips/include/asm/pci.h b/arch/mips/include/asm/pci.h index f194c08bd057..12d6842962be 100644 --- a/arch/mips/include/asm/pci.h +++ b/arch/mips/include/asm/pci.h @@ -83,6 +83,18 @@ static inline void pcibios_penalize_isa_irq(int irq, int active) extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, enum pci_mmap_state mmap_state, int write_combine); +#define HAVE_ARCH_PCI_RESOURCE_TO_USER + +static inline void pci_resource_to_user(const struct pci_dev *dev, int bar, + const struct resource *rsrc, resource_size_t *start, + resource_size_t *end) +{ + phys_t size = resource_size(rsrc); + + *start = fixup_bigphys_addr(rsrc->start, size); + *end = rsrc->start + size; +} + /* * Dynamic DMA mapping stuff. * MIPS has everything mapped statically. From 182b17c8dc4e83aab000ce86587b6810e515da87 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 17 Sep 2013 14:21:15 +1000 Subject: [PATCH 288/350] drm/ttm: fix the tt_populated check in ttm_tt_destroy() After a vmalloc failure in ttm_dma_tt_alloc_page_directory(), ttm_dma_tt_init() will call ttm_tt_destroy() to cleanup, and end up inside the driver's unpopulate() hook when populate() has never yet been called. On nouveau, the first issue to be hit because of this is that dma_address[] may be a NULL pointer. After working around this, ttm_pool_unpopulate() may potentially hit the same issue with the pages[] array. It seems to make more sense to avoid calling unpopulate on already unpopulated TTMs than to add checks to all the implementations. Signed-off-by: Ben Skeggs Reviewed-by: Thomas Hellstrom Cc: stable@vger.kernel.org Cc: Jerome Glisse Signed-off-by: Dave Airlie --- drivers/gpu/drm/ttm/ttm_tt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c index 5e93a52d4f2c..210d50365162 100644 --- a/drivers/gpu/drm/ttm/ttm_tt.c +++ b/drivers/gpu/drm/ttm/ttm_tt.c @@ -170,7 +170,7 @@ void ttm_tt_destroy(struct ttm_tt *ttm) ttm_tt_unbind(ttm); } - if (likely(ttm->pages != NULL)) { + if (ttm->state == tt_unbound) { ttm->bdev->driver->ttm_tt_unpopulate(ttm); } From bcf73a10837e9695f5ca7e3e65bf6ce850692d41 Mon Sep 17 00:00:00 2001 From: Prarit Bhargava Date: Fri, 13 Sep 2013 08:33:34 -0400 Subject: [PATCH 289/350] drm, ttm Fix uninitialized warning MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix uninitialized warning. drivers/gpu/drm/ttm/ttm_object.c: In function ‘ttm_base_object_lookup’: drivers/gpu/drm/ttm/ttm_object.c:213:10: error: ‘base’ may be used uninitialized in this function [-Werror=maybe-uninitialized] kref_put(&base->refcount, ttm_release_base); ^ drivers/gpu/drm/ttm/ttm_object.c:221:26: note: ‘base’ was declared here struct ttm_base_object *base; Signed-off-by: Prarit Bhargava Reviewed-by: Rob Clark Reviewed-by: David Herrmann Signed-off-by: Dave Airlie --- drivers/gpu/drm/ttm/ttm_object.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/ttm/ttm_object.c b/drivers/gpu/drm/ttm/ttm_object.c index 58a5f3261c0b..a868176c258a 100644 --- a/drivers/gpu/drm/ttm/ttm_object.c +++ b/drivers/gpu/drm/ttm/ttm_object.c @@ -218,7 +218,7 @@ struct ttm_base_object *ttm_base_object_lookup(struct ttm_object_file *tfile, uint32_t key) { struct ttm_object_device *tdev = tfile->tdev; - struct ttm_base_object *base; + struct ttm_base_object *uninitialized_var(base); struct drm_hash_item *hash; int ret; From e1825b25309264bf2d1275a8da9c997bca39b0d8 Mon Sep 17 00:00:00 2001 From: Sudeep KarkadaNagesha Date: Tue, 10 Sep 2013 18:59:46 +0100 Subject: [PATCH 290/350] cpufreq: cpufreq-cpu0: assign cpu_dev correctly to cpu0 device Commit f837a9b5ab05c52a07108c6f09ca66f2e0aee757 "cpufreq: cpufreq-cpu0: remove device tree parsing for cpu nodes" assumed the pdev->dev is set to cpu0 device in the platform code. But it actually points to the virtual cpufreq-cpu0 platform device which is not present in the device tree. Most of the information needed by cpufreq is stored in cpu0 DT node. So cpu_dev must point to cpu0 device. This patch fixes the wrong assignment to cpu_dev. Reported-and-tested-by: Guennadi Liakhovetski Cc: Shawn Guo Signed-off-by: Sudeep KarkadaNagesha Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq-cpu0.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c index cbfffa91ebdd..78c49d8e0f4a 100644 --- a/drivers/cpufreq/cpufreq-cpu0.c +++ b/drivers/cpufreq/cpufreq-cpu0.c @@ -12,6 +12,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include +#include #include #include #include @@ -177,7 +178,11 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev) struct device_node *np; int ret; - cpu_dev = &pdev->dev; + cpu_dev = get_cpu_device(0); + if (!cpu_dev) { + pr_err("failed to get cpu0 device\n"); + return -ENODEV; + } np = of_node_get(cpu_dev->of_node); if (!np) { From b494b48dacb4dd848d76bc8871e55716486f0253 Mon Sep 17 00:00:00 2001 From: Sudeep KarkadaNagesha Date: Tue, 10 Sep 2013 18:59:47 +0100 Subject: [PATCH 291/350] cpufreq: imx6q-cpufreq: assign cpu_dev correctly to cpu0 device Commit cdc58d602d2e657602a90c190cbf745886c95977 "cpufreq: imx6q-cpufreq: remove device tree parsing for cpu nodes" assumed the pdev->dev is set to cpu0 device in the platform code. But it actually points to the virtual cpufreq-cpu0 platform device which is not present in the device tree. Most of the information needed by cpufreq is stored in cpu0 DT node. So cpu_dev must point to cpu0 device. This patch fixes the wrong assignment to cpu_dev. Reported-by: Guennadi Liakhovetski Tested-by: Shawn Guo Signed-off-by: Sudeep KarkadaNagesha Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-imx/mach-imx6q.c | 9 +++++++-- drivers/cpufreq/imx6q-cpufreq.c | 7 ++++++- 2 files changed, 13 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c index 85a1b51346c8..90372a21087f 100644 --- a/arch/arm/mach-imx/mach-imx6q.c +++ b/arch/arm/mach-imx/mach-imx6q.c @@ -233,10 +233,15 @@ put_node: of_node_put(np); } -static void __init imx6q_opp_init(struct device *cpu_dev) +static void __init imx6q_opp_init(void) { struct device_node *np; + struct device *cpu_dev = get_cpu_device(0); + if (!cpu_dev) { + pr_warn("failed to get cpu0 device\n"); + return; + } np = of_node_get(cpu_dev->of_node); if (!np) { pr_warn("failed to find cpu0 node\n"); @@ -268,7 +273,7 @@ static void __init imx6q_init_late(void) imx6q_cpuidle_init(); if (IS_ENABLED(CONFIG_ARM_IMX6Q_CPUFREQ)) { - imx6q_opp_init(&imx6q_cpufreq_pdev.dev); + imx6q_opp_init(); platform_device_register(&imx6q_cpufreq_pdev); } } diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c index 3e396543aea4..c3fd2a101ca0 100644 --- a/drivers/cpufreq/imx6q-cpufreq.c +++ b/drivers/cpufreq/imx6q-cpufreq.c @@ -7,6 +7,7 @@ */ #include +#include #include #include #include @@ -202,7 +203,11 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev) unsigned long min_volt, max_volt; int num, ret; - cpu_dev = &pdev->dev; + cpu_dev = get_cpu_device(0); + if (!cpu_dev) { + pr_err("failed to get cpu0 device\n"); + return -ENODEV; + } np = of_node_get(cpu_dev->of_node); if (!np) { From 3d10a887de7ffe704687c9a77abaac9fbe5e9208 Mon Sep 17 00:00:00 2001 From: Sudeep KarkadaNagesha Date: Tue, 10 Sep 2013 18:59:48 +0100 Subject: [PATCH 292/350] ARM: i.MX: change dev_id to cpu0 while registering cpu clock Currently all clkdev registration use "cpufreq-cpu0.0" as dev_id for cpu clock which refers to virtual platform device. It needs to be "cpu0" instead which is actual cpu0 device id. This patch changes the dev_id from "cpufreq-cpu0.0" to "cpu0". Reported-by: Guennadi Liakhovetski Tested-by: Shawn Guo Signed-off-by: Sudeep KarkadaNagesha Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-imx/clk-imx27.c | 2 +- arch/arm/mach-imx/clk-imx51-imx53.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-imx/clk-imx27.c b/arch/arm/mach-imx/clk-imx27.c index c3cfa4116dc0..c6b40f386786 100644 --- a/arch/arm/mach-imx/clk-imx27.c +++ b/arch/arm/mach-imx/clk-imx27.c @@ -285,7 +285,7 @@ int __init mx27_clocks_init(unsigned long fref) clk_register_clkdev(clk[ata_ahb_gate], "ata", NULL); clk_register_clkdev(clk[rtc_ipg_gate], NULL, "imx21-rtc"); clk_register_clkdev(clk[scc_ipg_gate], "scc", NULL); - clk_register_clkdev(clk[cpu_div], NULL, "cpufreq-cpu0.0"); + clk_register_clkdev(clk[cpu_div], NULL, "cpu0"); clk_register_clkdev(clk[emi_ahb_gate], "emi_ahb" , NULL); mxc_timer_init(MX27_IO_ADDRESS(MX27_GPT1_BASE_ADDR), MX27_INT_GPT1); diff --git a/arch/arm/mach-imx/clk-imx51-imx53.c b/arch/arm/mach-imx/clk-imx51-imx53.c index 1a56a3319997..de1964c7b8bc 100644 --- a/arch/arm/mach-imx/clk-imx51-imx53.c +++ b/arch/arm/mach-imx/clk-imx51-imx53.c @@ -328,7 +328,7 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil, clk_register_clkdev(clk[ssi2_ipg_gate], NULL, "imx-ssi.1"); clk_register_clkdev(clk[ssi3_ipg_gate], NULL, "imx-ssi.2"); clk_register_clkdev(clk[sdma_gate], NULL, "imx35-sdma"); - clk_register_clkdev(clk[cpu_podf], NULL, "cpufreq-cpu0.0"); + clk_register_clkdev(clk[cpu_podf], NULL, "cpu0"); clk_register_clkdev(clk[iim_gate], "iim", NULL); clk_register_clkdev(clk[dummy], NULL, "imx2-wdt.0"); clk_register_clkdev(clk[dummy], NULL, "imx2-wdt.1"); From e4a6a29d1250022a885123cc0a04bd176b508854 Mon Sep 17 00:00:00 2001 From: Sudeep KarkadaNagesha Date: Tue, 10 Sep 2013 18:59:49 +0100 Subject: [PATCH 293/350] ARM: shmobile: change dev_id to cpu0 while registering cpu clock Currently all clkdev registration use "cpufreq-cpu0.0" as dev_id for cpu clock which refers to virtual platform device. It needs to be "cpu0" instead which is actual cpu0 device id. This patch changes the dev_id from "cpufreq-cpu0.0" to "cpu0". Reported-and-tested-by: Guennadi Liakhovetski Cc: Shawn Guo Cc: Magnus Damm Signed-off-by: Sudeep KarkadaNagesha Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-shmobile/clock-r8a73a4.c | 2 +- arch/arm/mach-shmobile/clock-sh73a0.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-shmobile/clock-r8a73a4.c b/arch/arm/mach-shmobile/clock-r8a73a4.c index 8ea5ef6c79cc..5bd2e851e3c7 100644 --- a/arch/arm/mach-shmobile/clock-r8a73a4.c +++ b/arch/arm/mach-shmobile/clock-r8a73a4.c @@ -555,7 +555,7 @@ static struct clk_lookup lookups[] = { CLKDEV_CON_ID("pll2h", &pll2h_clk), /* CPU clock */ - CLKDEV_DEV_ID("cpufreq-cpu0", &z_clk), + CLKDEV_DEV_ID("cpu0", &z_clk), /* DIV6 */ CLKDEV_CON_ID("zb", &div6_clks[DIV6_ZB]), diff --git a/arch/arm/mach-shmobile/clock-sh73a0.c b/arch/arm/mach-shmobile/clock-sh73a0.c index 1942eaef5181..c92c023f0d27 100644 --- a/arch/arm/mach-shmobile/clock-sh73a0.c +++ b/arch/arm/mach-shmobile/clock-sh73a0.c @@ -616,7 +616,7 @@ static struct clk_lookup lookups[] = { CLKDEV_DEV_ID("smp_twd", &twd_clk), /* smp_twd */ /* DIV4 clocks */ - CLKDEV_DEV_ID("cpufreq-cpu0", &div4_clks[DIV4_Z]), + CLKDEV_DEV_ID("cpu0", &div4_clks[DIV4_Z]), /* DIV6 clocks */ CLKDEV_CON_ID("vck1_clk", &div6_clks[DIV6_VCK1]), From 928c2f0c006bf7f381f58af2b2786d2a858ae311 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Fri, 13 Sep 2013 14:49:57 -0700 Subject: [PATCH 294/350] drm/fb-helper: don't sleep for screen unblank when an oops is in progress Otherwise the system will burn even brighter and worse, leave the user wondering what's going on exactly. Since we already have a panic handler which will (try) to restore the entire fbdev console mode, we can just bail out. Inspired by a patch from Konstantin Khlebnikov. The callchain leading to this, cut&pasted from Konstantin's original patch: callstack: panic() bust_spinlocks(1) unblank_screen() vc->vc_sw->con_blank() fbcon_blank() fb_blank() info->fbops->fb_blank() drm_fb_helper_blank() drm_fb_helper_dpms() drm_modeset_lock_all() mutex_lock(&dev->mode_config.mutex) Note that the entire locking in the fb helper around panic/sysrq and kdbg is ... non-existant. So we have a decent change of blowing up everything. But since reworking this ties in with funny concepts like the fbdev notifier chain or the impressive things which happen around console_lock while oopsing, I'll leave that as an exercise for braver souls than me. Signed-off-by: Daniel Vetter Cc: Konstantin Khlebnikov Cc: Dave Airlie Reviewed-by: Rob Clark Signed-off-by: Andrew Morton Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_fb_helper.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 3d13ca6e257f..f6f6cc7fc133 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -407,6 +407,14 @@ static void drm_fb_helper_dpms(struct fb_info *info, int dpms_mode) struct drm_connector *connector; int i, j; + /* + * fbdev->blank can be called from irq context in case of a panic. + * Since we already have our own special panic handler which will + * restore the fbdev console mode completely, just bail out early. + */ + if (oops_in_progress) + return; + /* * fbdev->blank can be called from irq context in case of a panic. * Since we already have our own special panic handler which will From 2f9ee82c2a1af01966cedaa9cb144acb6fca9932 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Thu, 19 Sep 2013 11:09:48 +0200 Subject: [PATCH 295/350] MIPS: Add MIPS R5 config5 register. Signed-off-by: Ralf Baechle --- arch/mips/include/asm/mipsregs.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h index fed1c3e9b486..e0331414c7d6 100644 --- a/arch/mips/include/asm/mipsregs.h +++ b/arch/mips/include/asm/mipsregs.h @@ -603,6 +603,13 @@ #define MIPS_CONF4_MMUEXTDEF (_ULCAST_(3) << 14) #define MIPS_CONF4_MMUEXTDEF_MMUSIZEEXT (_ULCAST_(1) << 14) +#define MIPS_CONF5_NF (_ULCAST_(1) << 0) +#define MIPS_CONF5_UFR (_ULCAST_(1) << 2) +#define MIPS_CONF5_MSAEN (_ULCAST_(1) << 27) +#define MIPS_CONF5_EVA (_ULCAST_(1) << 28) +#define MIPS_CONF5_CV (_ULCAST_(1) << 29) +#define MIPS_CONF5_K (_ULCAST_(1) << 30) + #define MIPS_CONF6_SYND (_ULCAST_(1) << 13) #define MIPS_CONF7_WII (_ULCAST_(1) << 31) From 8b8a7634315be747959b0165e38138879f93cf6c Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Thu, 19 Sep 2013 11:15:49 +0200 Subject: [PATCH 296/350] MIPS: Disable usermode switching of the FR bit for MIPS R5 CPUs. Currently the kernel will always use the FR=0 register model for O32. If an O32 application did enable FR=1 mode, some data from another application might be leaked in the extra registers becoming visible. Iow, this patch is meant to make the kernel MIPS R5 tolerant but leaves proper MIPS R5 support to a future patchset. Signed-off-by: Ralf Baechle --- arch/mips/kernel/cpu-probe.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 9be68091bdf2..5465dc183e5a 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -291,6 +291,17 @@ static inline unsigned int decode_config4(struct cpuinfo_mips *c) return config4 & MIPS_CONF_M; } +static inline unsigned int decode_config5(struct cpuinfo_mips *c) +{ + unsigned int config5; + + config5 = read_c0_config5(); + config5 &= ~MIPS_CONF5_UFR; + write_c0_config5(config5); + + return config5 & MIPS_CONF_M; +} + static void decode_configs(struct cpuinfo_mips *c) { int ok; @@ -311,6 +322,8 @@ static void decode_configs(struct cpuinfo_mips *c) ok = decode_config3(c); if (ok) ok = decode_config4(c); + if (ok) + ok = decode_config5(c); mips_probe_watch_registers(c); From 88f02518d8ae846fc11001d7765ecee343cb5349 Mon Sep 17 00:00:00 2001 From: Markos Chandras Date: Thu, 19 Sep 2013 10:27:52 +0100 Subject: [PATCH 297/350] MIPS: PCI: pci-bcm1480: Include missing vt.h header It's needed for the MAX_NR_CONSOLES macro. Fixes the following build problem on a randconfig: arch/mips/pci/pci-bcm1480.c: In function 'bcm1480_pcibios_init': arch/mips/pci/pci-bcm1480.c:261:36: error: 'MAX_NR_CONSOLES' undeclared (first use in this function) arch/mips/pci/pci-bcm1480.c:261:36: note: each undeclared identifier is reported only once for each function it appears in make[1]: *** [arch/mips/pci/pci-bcm1480.o] Error 1 Signed-off-by: Markos Chandras Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5858/ Signed-off-by: Ralf Baechle --- arch/mips/pci/pci-bcm1480.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/mips/pci/pci-bcm1480.c b/arch/mips/pci/pci-bcm1480.c index 44dd5aa2e36f..5ec2a7bae02c 100644 --- a/arch/mips/pci/pci-bcm1480.c +++ b/arch/mips/pci/pci-bcm1480.c @@ -39,6 +39,7 @@ #include #include #include +#include #include #include From 66b10574b86046dbe10c4326e43964a79e0b3a64 Mon Sep 17 00:00:00 2001 From: Madhavan Srinivasan Date: Thu, 19 Sep 2013 18:39:08 +0530 Subject: [PATCH 298/350] MIPS: Fix invalid symbolic link file Commit 3b29aa5ba204c [MIPS: add symlink] created a symlink file in include/dt-bindings. Even though commit diff is fine, the symlink is invalid and ls -lb shows a newline character at the end of the filename: lrwxrwxrwx 1 maddy maddy 35 Sep 19 18:11 dt-bindings -> ../../../../../include/dt-bindings\n Signed-off-by: Madhavan Srinivasan Cc: steven.hill@imgtec.com Cc: mmarek@suse.cz Cc: swarren@nvidia.com Cc: linux-mips@linux-mips.org Cc: linux-kbuild@vger.kernel.org Cc: james.hogan@imgtec.com Patchwork: https://patchwork.linux-mips.org/patch/5859/ Signed-off-by: Ralf Baechle --- arch/mips/boot/dts/include/dt-bindings | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/boot/dts/include/dt-bindings b/arch/mips/boot/dts/include/dt-bindings index 68ae3887b3e5..08c00e4972fa 120000 --- a/arch/mips/boot/dts/include/dt-bindings +++ b/arch/mips/boot/dts/include/dt-bindings @@ -1 +1 @@ -../../../../../include/dt-bindings +../../../../../include/dt-bindings \ No newline at end of file From 279f438e36c0a70b23b86d2090aeec50155034a9 Mon Sep 17 00:00:00 2001 From: Paul Durrant Date: Tue, 17 Sep 2013 17:46:08 +0100 Subject: [PATCH 299/350] xen-netback: Don't destroy the netdev until the vif is shut down Without this patch, if a frontend cycles through states Closing and Closed (which Windows frontends need to do) then the netdev will be destroyed and requires re-invocation of hotplug scripts to restore state before the frontend can move to Connected. Thus when udev is not in use the backend gets stuck in InitWait. With this patch, the netdev is left alone whilst the backend is still online and is only de-registered and freed just prior to destroying the vif (which is also nicely symmetrical with the netdev allocation and registration being done during probe) so no re-invocation of hotplug scripts is required. Signed-off-by: Paul Durrant Cc: David Vrabel Cc: Wei Liu Cc: Ian Campbell Acked-by: Wei Liu Signed-off-by: David S. Miller --- drivers/net/xen-netback/common.h | 1 + drivers/net/xen-netback/interface.c | 26 ++++++++++---------------- drivers/net/xen-netback/xenbus.c | 19 +++++++++++++------ 3 files changed, 24 insertions(+), 22 deletions(-) diff --git a/drivers/net/xen-netback/common.h b/drivers/net/xen-netback/common.h index a1977430ddfb..5715318d6bab 100644 --- a/drivers/net/xen-netback/common.h +++ b/drivers/net/xen-netback/common.h @@ -184,6 +184,7 @@ int xenvif_connect(struct xenvif *vif, unsigned long tx_ring_ref, unsigned long rx_ring_ref, unsigned int tx_evtchn, unsigned int rx_evtchn); void xenvif_disconnect(struct xenvif *vif); +void xenvif_free(struct xenvif *vif); int xenvif_xenbus_init(void); void xenvif_xenbus_fini(void); diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c index 77fee1d51fb2..01bb854c7f62 100644 --- a/drivers/net/xen-netback/interface.c +++ b/drivers/net/xen-netback/interface.c @@ -353,6 +353,9 @@ struct xenvif *xenvif_alloc(struct device *parent, domid_t domid, } netdev_dbg(dev, "Successfully created xenvif\n"); + + __module_get(THIS_MODULE); + return vif; } @@ -366,8 +369,6 @@ int xenvif_connect(struct xenvif *vif, unsigned long tx_ring_ref, if (vif->tx_irq) return 0; - __module_get(THIS_MODULE); - err = xenvif_map_frontend_rings(vif, tx_ring_ref, rx_ring_ref); if (err < 0) goto err; @@ -452,12 +453,6 @@ void xenvif_carrier_off(struct xenvif *vif) void xenvif_disconnect(struct xenvif *vif) { - /* Disconnect funtion might get called by generic framework - * even before vif connects, so we need to check if we really - * need to do a module_put. - */ - int need_module_put = 0; - if (netif_carrier_ok(vif->dev)) xenvif_carrier_off(vif); @@ -468,23 +463,22 @@ void xenvif_disconnect(struct xenvif *vif) unbind_from_irqhandler(vif->tx_irq, vif); unbind_from_irqhandler(vif->rx_irq, vif); } - /* vif->irq is valid, we had a module_get in - * xenvif_connect. - */ - need_module_put = 1; + vif->tx_irq = 0; } if (vif->task) kthread_stop(vif->task); + xenvif_unmap_frontend_rings(vif); +} + +void xenvif_free(struct xenvif *vif) +{ netif_napi_del(&vif->napi); unregister_netdev(vif->dev); - xenvif_unmap_frontend_rings(vif); - free_netdev(vif->dev); - if (need_module_put) - module_put(THIS_MODULE); + module_put(THIS_MODULE); } diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c index 1fe48fe364ed..a53782ef1540 100644 --- a/drivers/net/xen-netback/xenbus.c +++ b/drivers/net/xen-netback/xenbus.c @@ -42,7 +42,7 @@ static int netback_remove(struct xenbus_device *dev) if (be->vif) { kobject_uevent(&dev->dev.kobj, KOBJ_OFFLINE); xenbus_rm(XBT_NIL, dev->nodename, "hotplug-status"); - xenvif_disconnect(be->vif); + xenvif_free(be->vif); be->vif = NULL; } kfree(be); @@ -213,9 +213,18 @@ static void disconnect_backend(struct xenbus_device *dev) { struct backend_info *be = dev_get_drvdata(&dev->dev); - if (be->vif) { - xenbus_rm(XBT_NIL, dev->nodename, "hotplug-status"); + if (be->vif) xenvif_disconnect(be->vif); +} + +static void destroy_backend(struct xenbus_device *dev) +{ + struct backend_info *be = dev_get_drvdata(&dev->dev); + + if (be->vif) { + kobject_uevent(&dev->dev.kobj, KOBJ_OFFLINE); + xenbus_rm(XBT_NIL, dev->nodename, "hotplug-status"); + xenvif_free(be->vif); be->vif = NULL; } } @@ -246,14 +255,11 @@ static void frontend_changed(struct xenbus_device *dev, case XenbusStateConnected: if (dev->state == XenbusStateConnected) break; - backend_create_xenvif(be); if (be->vif) connect(be); break; case XenbusStateClosing: - if (be->vif) - kobject_uevent(&dev->dev.kobj, KOBJ_OFFLINE); disconnect_backend(dev); xenbus_switch_state(dev, XenbusStateClosing); break; @@ -262,6 +268,7 @@ static void frontend_changed(struct xenbus_device *dev, xenbus_switch_state(dev, XenbusStateClosed); if (xenbus_dev_is_online(dev)) break; + destroy_backend(dev); /* fall through if not online */ case XenbusStateUnknown: device_unregister(&dev->dev); From 749154aa56b57652a282cbde57a57abc278d1205 Mon Sep 17 00:00:00 2001 From: Ansis Atteka Date: Wed, 18 Sep 2013 15:29:52 -0700 Subject: [PATCH 300/350] ip: use ip_hdr() in __ip_make_skb() to retrieve IP header skb->data already points to IP header, but for the sake of consistency we can also use ip_hdr() to retrieve it. Signed-off-by: Ansis Atteka Signed-off-by: David S. Miller --- net/ipv4/ip_output.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index 9ee17e3d11c3..eae2e262fbe5 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -1316,7 +1316,7 @@ struct sk_buff *__ip_make_skb(struct sock *sk, else ttl = ip_select_ttl(inet, &rt->dst); - iph = (struct iphdr *)skb->data; + iph = ip_hdr(skb); iph->version = 4; iph->ihl = 5; iph->tos = inet->tos; From 703133de331a7a7df47f31fb9de51dc6f68a9de8 Mon Sep 17 00:00:00 2001 From: Ansis Atteka Date: Wed, 18 Sep 2013 15:29:53 -0700 Subject: [PATCH 301/350] ip: generate unique IP identificator if local fragmentation is allowed If local fragmentation is allowed, then ip_select_ident() and ip_select_ident_more() need to generate unique IDs to ensure correct defragmentation on the peer. For example, if IPsec (tunnel mode) has to encrypt large skbs that have local_df bit set, then all IP fragments that belonged to different ESP datagrams would have used the same identificator. If one of these IP fragments would get lost or reordered, then peer could possibly stitch together wrong IP fragments that did not belong to the same datagram. This would lead to a packet loss or data corruption. Signed-off-by: Ansis Atteka Signed-off-by: David S. Miller --- drivers/net/ppp/pptp.c | 2 +- include/net/ip.h | 12 ++++++++---- net/ipv4/igmp.c | 4 ++-- net/ipv4/inetpeer.c | 4 ++-- net/ipv4/ip_output.c | 6 +++--- net/ipv4/ipmr.c | 2 +- net/ipv4/raw.c | 2 +- net/ipv4/xfrm4_mode_tunnel.c | 2 +- net/netfilter/ipvs/ip_vs_xmit.c | 2 +- 9 files changed, 20 insertions(+), 16 deletions(-) diff --git a/drivers/net/ppp/pptp.c b/drivers/net/ppp/pptp.c index 6fa5ae00039f..01805319e1e0 100644 --- a/drivers/net/ppp/pptp.c +++ b/drivers/net/ppp/pptp.c @@ -281,7 +281,7 @@ static int pptp_xmit(struct ppp_channel *chan, struct sk_buff *skb) nf_reset(skb); skb->ip_summed = CHECKSUM_NONE; - ip_select_ident(iph, &rt->dst, NULL); + ip_select_ident(skb, &rt->dst, NULL); ip_send_check(iph); ip_local_out(skb); diff --git a/include/net/ip.h b/include/net/ip.h index 48f55979d842..5e5268807a1c 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -264,9 +264,11 @@ int ip_dont_fragment(struct sock *sk, struct dst_entry *dst) extern void __ip_select_ident(struct iphdr *iph, struct dst_entry *dst, int more); -static inline void ip_select_ident(struct iphdr *iph, struct dst_entry *dst, struct sock *sk) +static inline void ip_select_ident(struct sk_buff *skb, struct dst_entry *dst, struct sock *sk) { - if (iph->frag_off & htons(IP_DF)) { + struct iphdr *iph = ip_hdr(skb); + + if ((iph->frag_off & htons(IP_DF)) && !skb->local_df) { /* This is only to work around buggy Windows95/2000 * VJ compression implementations. If the ID field * does not change, they drop every other packet in @@ -278,9 +280,11 @@ static inline void ip_select_ident(struct iphdr *iph, struct dst_entry *dst, str __ip_select_ident(iph, dst, 0); } -static inline void ip_select_ident_more(struct iphdr *iph, struct dst_entry *dst, struct sock *sk, int more) +static inline void ip_select_ident_more(struct sk_buff *skb, struct dst_entry *dst, struct sock *sk, int more) { - if (iph->frag_off & htons(IP_DF)) { + struct iphdr *iph = ip_hdr(skb); + + if ((iph->frag_off & htons(IP_DF)) && !skb->local_df) { if (sk && inet_sk(sk)->inet_daddr) { iph->id = htons(inet_sk(sk)->inet_id); inet_sk(sk)->inet_id += 1 + more; diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c index d6c0e64ec97f..dace87f06e5f 100644 --- a/net/ipv4/igmp.c +++ b/net/ipv4/igmp.c @@ -369,7 +369,7 @@ static struct sk_buff *igmpv3_newpack(struct net_device *dev, int size) pip->saddr = fl4.saddr; pip->protocol = IPPROTO_IGMP; pip->tot_len = 0; /* filled in later */ - ip_select_ident(pip, &rt->dst, NULL); + ip_select_ident(skb, &rt->dst, NULL); ((u8 *)&pip[1])[0] = IPOPT_RA; ((u8 *)&pip[1])[1] = 4; ((u8 *)&pip[1])[2] = 0; @@ -714,7 +714,7 @@ static int igmp_send_report(struct in_device *in_dev, struct ip_mc_list *pmc, iph->daddr = dst; iph->saddr = fl4.saddr; iph->protocol = IPPROTO_IGMP; - ip_select_ident(iph, &rt->dst, NULL); + ip_select_ident(skb, &rt->dst, NULL); ((u8 *)&iph[1])[0] = IPOPT_RA; ((u8 *)&iph[1])[1] = 4; ((u8 *)&iph[1])[2] = 0; diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c index 000e3d239d64..33d5537881ed 100644 --- a/net/ipv4/inetpeer.c +++ b/net/ipv4/inetpeer.c @@ -32,8 +32,8 @@ * At the moment of writing this notes identifier of IP packets is generated * to be unpredictable using this code only for packets subjected * (actually or potentially) to defragmentation. I.e. DF packets less than - * PMTU in size uses a constant ID and do not use this code (see - * ip_select_ident() in include/net/ip.h). + * PMTU in size when local fragmentation is disabled use a constant ID and do + * not use this code (see ip_select_ident() in include/net/ip.h). * * Route cache entries hold references to our nodes. * New cache entries get references via lookup by destination IP address in diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index eae2e262fbe5..a04d872c54f9 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -148,7 +148,7 @@ int ip_build_and_send_pkt(struct sk_buff *skb, struct sock *sk, iph->daddr = (opt && opt->opt.srr ? opt->opt.faddr : daddr); iph->saddr = saddr; iph->protocol = sk->sk_protocol; - ip_select_ident(iph, &rt->dst, sk); + ip_select_ident(skb, &rt->dst, sk); if (opt && opt->opt.optlen) { iph->ihl += opt->opt.optlen>>2; @@ -386,7 +386,7 @@ packet_routed: ip_options_build(skb, &inet_opt->opt, inet->inet_daddr, rt, 0); } - ip_select_ident_more(iph, &rt->dst, sk, + ip_select_ident_more(skb, &rt->dst, sk, (skb_shinfo(skb)->gso_segs ?: 1) - 1); skb->priority = sk->sk_priority; @@ -1324,7 +1324,7 @@ struct sk_buff *__ip_make_skb(struct sock *sk, iph->ttl = ttl; iph->protocol = sk->sk_protocol; ip_copy_addrs(iph, fl4); - ip_select_ident(iph, &rt->dst, sk); + ip_select_ident(skb, &rt->dst, sk); if (opt) { iph->ihl += opt->optlen>>2; diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index 9ae54b09254f..62212c772a4b 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -1658,7 +1658,7 @@ static void ip_encap(struct sk_buff *skb, __be32 saddr, __be32 daddr) iph->protocol = IPPROTO_IPIP; iph->ihl = 5; iph->tot_len = htons(skb->len); - ip_select_ident(iph, skb_dst(skb), NULL); + ip_select_ident(skb, skb_dst(skb), NULL); ip_send_check(iph); memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt)); diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c index a86c7ae71881..bfec521c717f 100644 --- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -387,7 +387,7 @@ static int raw_send_hdrinc(struct sock *sk, struct flowi4 *fl4, iph->check = 0; iph->tot_len = htons(length); if (!iph->id) - ip_select_ident(iph, &rt->dst, NULL); + ip_select_ident(skb, &rt->dst, NULL); iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl); } diff --git a/net/ipv4/xfrm4_mode_tunnel.c b/net/ipv4/xfrm4_mode_tunnel.c index eb1dd4d643f2..b5663c37f089 100644 --- a/net/ipv4/xfrm4_mode_tunnel.c +++ b/net/ipv4/xfrm4_mode_tunnel.c @@ -117,7 +117,7 @@ static int xfrm4_mode_tunnel_output(struct xfrm_state *x, struct sk_buff *skb) top_iph->frag_off = (flags & XFRM_STATE_NOPMTUDISC) ? 0 : (XFRM_MODE_SKB_CB(skb)->frag_off & htons(IP_DF)); - ip_select_ident(top_iph, dst->child, NULL); + ip_select_ident(skb, dst->child, NULL); top_iph->ttl = ip4_dst_hoplimit(dst->child); diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c index b75ff6429a04..c47444e4cf8c 100644 --- a/net/netfilter/ipvs/ip_vs_xmit.c +++ b/net/netfilter/ipvs/ip_vs_xmit.c @@ -883,7 +883,7 @@ ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp, iph->daddr = cp->daddr.ip; iph->saddr = saddr; iph->ttl = old_iph->ttl; - ip_select_ident(iph, &rt->dst, NULL); + ip_select_ident(skb, &rt->dst, NULL); /* Another hack: avoid icmp_send in ip_fragment */ skb->local_df = 1; From c194992cbe71c20bb3623a566af8d11b0bfaa721 Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Thu, 19 Sep 2013 14:13:17 -0400 Subject: [PATCH 302/350] skge: fix broken driver The patch 136d8f377e1575463b47840bc5f1b22d94bf8f63 broke the skge driver. Note this part of the patch: + if (skge_rx_setup(skge, e, nskb, skge->rx_buf_size) < 0) { + dev_kfree_skb(nskb); + goto resubmit; + } + pci_unmap_single(skge->hw->pdev, dma_unmap_addr(e, mapaddr), dma_unmap_len(e, maplen), PCI_DMA_FROMDEVICE); skb = e->skb; prefetch(skb->data); - skge_rx_setup(skge, e, nskb, skge->rx_buf_size); The function skge_rx_setup modifies e->skb to point to the new skb. Thus, after this change, the new buffer, not the old, is returned to the networking stack. This bug is present in kernels 3.11, 3.11.1 and 3.12-rc1. The patch should be queued for 3.11-stable. Signed-off-by: Mikulas Patocka Reported-by: Mikulas Patocka Reported-by: Vasiliy Glazov Tested-by: Mikulas Patocka Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/skge.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/marvell/skge.c b/drivers/net/ethernet/marvell/skge.c index ef94a591f9e5..1a9c4f6269ea 100644 --- a/drivers/net/ethernet/marvell/skge.c +++ b/drivers/net/ethernet/marvell/skge.c @@ -3092,6 +3092,9 @@ static struct sk_buff *skge_rx_get(struct net_device *dev, if (!nskb) goto resubmit; + skb = e->skb; + prefetch(skb->data); + if (skge_rx_setup(skge, e, nskb, skge->rx_buf_size) < 0) { dev_kfree_skb(nskb); goto resubmit; @@ -3101,8 +3104,6 @@ static struct sk_buff *skge_rx_get(struct net_device *dev, dma_unmap_addr(e, mapaddr), dma_unmap_len(e, maplen), PCI_DMA_FROMDEVICE); - skb = e->skb; - prefetch(skb->data); } skb_put(skb, len); From d0fe8c888b1fd1a2f84b9962cabcb98a70988aec Mon Sep 17 00:00:00 2001 From: Nikolay Aleksandrov Date: Thu, 19 Sep 2013 15:02:35 +0200 Subject: [PATCH 303/350] netpoll: fix NULL pointer dereference in netpoll_cleanup I've been hitting a NULL ptr deref while using netconsole because the np->dev check and the pointer manipulation in netpoll_cleanup are done without rtnl and the following sequence happens when having a netconsole over a vlan and we remove the vlan while disabling the netconsole: CPU 1 CPU2 removes vlan and calls the notifier enters store_enabled(), calls netdev_cleanup which checks np->dev and then waits for rtnl executes the netconsole netdev release notifier making np->dev == NULL and releases rtnl continues to dereference a member of np->dev which at this point is == NULL Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller --- net/core/netpoll.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/net/core/netpoll.c b/net/core/netpoll.c index c3c7b27c112d..fc75c9e461b8 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -1284,15 +1284,14 @@ EXPORT_SYMBOL_GPL(__netpoll_free_async); void netpoll_cleanup(struct netpoll *np) { - if (!np->dev) - return; - rtnl_lock(); + if (!np->dev) + goto out; __netpoll_cleanup(np); - rtnl_unlock(); - dev_put(np->dev); np->dev = NULL; +out: + rtnl_unlock(); } EXPORT_SYMBOL(netpoll_cleanup); From c71380ff0b199f1e8be5ca46dd91262f7fbe4cb4 Mon Sep 17 00:00:00 2001 From: Nikolay Aleksandrov Date: Thu, 19 Sep 2013 15:02:36 +0200 Subject: [PATCH 304/350] netconsole: fix a deadlock with rtnl and netconsole's mutex This bug was introduced by commit 7a163bfb7ce50895bbe67300ea610d31b9c09230 ("netconsole: avoid a crash with multiple sysfs writers"). In store_enabled() we have the following sequence: acquire nt->mutex then rtnl, but in the netconsole netdev notifier we have rtnl then nt->mutex effectively leading to a deadlock. The NULL pointer dereference that the above commit tries to fix is actually due to another bug in netpoll_cleanup(). This is fixed by dropping the mutex from the netdev notifier as it's already protected by rtnl. Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller --- drivers/net/netconsole.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c index dcb21347c670..adeee615dd19 100644 --- a/drivers/net/netconsole.c +++ b/drivers/net/netconsole.c @@ -684,15 +684,12 @@ restart: case NETDEV_RELEASE: case NETDEV_JOIN: case NETDEV_UNREGISTER: - /* - * rtnl_lock already held + /* rtnl_lock already held * we might sleep in __netpoll_cleanup() */ spin_unlock_irqrestore(&target_list_lock, flags); - mutex_lock(&nt->mutex); __netpoll_cleanup(&nt->np); - mutex_unlock(&nt->mutex); spin_lock_irqsave(&target_list_lock, flags); dev_put(nt->np.dev); From 834145156bedadfb50121f0bc5e9d9f9f942bcca Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sat, 14 Sep 2013 03:38:20 +0200 Subject: [PATCH 305/350] PCI / ACPI / PM: Clear pme_poll for devices in D3cold on wakeup Commit 448bd85 (PCI/PM: add PCIe runtime D3cold support) added a piece of code to pci_acpi_wake_dev() causing that function to behave in a special way for devices in D3cold (so that their configuration registers are not accessed before those devices are resumed). However, it didn't take the clearing of the pme_poll flag into account. That has to be done for all devices, even if they are in D3cold, or pci_pme_list_scan() will not know that wakeup has been signaled for the device and will poll its PME Status bit unnecessarily. Fix the problem by moving the clearing of the pme_poll flag in pci_acpi_wake_dev() before the code introduced by commit 448bd85. Reported-and-tested-by: David E. Box Signed-off-by: Rafael J. Wysocki Acked-by: Bjorn Helgaas Cc: 3.6+ # 3.6+ --- drivers/pci/pci-acpi.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index 7c29ee4ed0ae..b0299e6d9a3f 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -47,6 +47,9 @@ static void pci_acpi_wake_dev(acpi_handle handle, u32 event, void *context) if (event != ACPI_NOTIFY_DEVICE_WAKE || !pci_dev) return; + if (pci_dev->pme_poll) + pci_dev->pme_poll = false; + if (pci_dev->current_state == PCI_D3cold) { pci_wakeup_event(pci_dev); pm_runtime_resume(&pci_dev->dev); @@ -57,9 +60,6 @@ static void pci_acpi_wake_dev(acpi_handle handle, u32 event, void *context) if (pci_dev->pme_support) pci_check_pme_status(pci_dev); - if (pci_dev->pme_poll) - pci_dev->pme_poll = false; - pci_wakeup_event(pci_dev); pm_runtime_resume(&pci_dev->dev); From c21eb21cb50d58e7cbdcb8b9e7ff68b85cfa5095 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Fri, 20 Sep 2013 08:32:59 +1000 Subject: [PATCH 306/350] Revert "drm: mark context support as a legacy subsystem" This reverts commit 7c510133d93dd6f15ca040733ba7b2891ed61fd1. Well looks like not enough digging was done, libdrm_nouveau before 2.4.33 used contexts, 292da616fe1f936ca78a3fa8e1b1b19883e343b6 nouveau: pull in major libdrm rewrite got rid of them, Reported-by: Paul Zimmerman Reported-by: Mikael Pettersson Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_context.c | 73 ++++------------------------------- drivers/gpu/drm/drm_fops.c | 21 +++++++++- drivers/gpu/drm/drm_stub.c | 10 ++++- include/drm/drmP.h | 7 ++-- 4 files changed, 39 insertions(+), 72 deletions(-) diff --git a/drivers/gpu/drm/drm_context.c b/drivers/gpu/drm/drm_context.c index b4fb86d89850..224ff965bcf7 100644 --- a/drivers/gpu/drm/drm_context.c +++ b/drivers/gpu/drm/drm_context.c @@ -42,6 +42,10 @@ #include +/******************************************************************/ +/** \name Context bitmap support */ +/*@{*/ + /** * Free a handle from the context bitmap. * @@ -52,48 +56,13 @@ * in drm_device::ctx_idr, while holding the drm_device::struct_mutex * lock. */ -static void drm_ctxbitmap_free(struct drm_device * dev, int ctx_handle) +void drm_ctxbitmap_free(struct drm_device * dev, int ctx_handle) { - if (drm_core_check_feature(dev, DRIVER_MODESET)) - return; - mutex_lock(&dev->struct_mutex); idr_remove(&dev->ctx_idr, ctx_handle); mutex_unlock(&dev->struct_mutex); } -/******************************************************************/ -/** \name Context bitmap support */ -/*@{*/ - -void drm_legacy_ctxbitmap_release(struct drm_device *dev, - struct drm_file *file_priv) -{ - if (drm_core_check_feature(dev, DRIVER_MODESET)) - return; - - mutex_lock(&dev->ctxlist_mutex); - if (!list_empty(&dev->ctxlist)) { - struct drm_ctx_list *pos, *n; - - list_for_each_entry_safe(pos, n, &dev->ctxlist, head) { - if (pos->tag == file_priv && - pos->handle != DRM_KERNEL_CONTEXT) { - if (dev->driver->context_dtor) - dev->driver->context_dtor(dev, - pos->handle); - - drm_ctxbitmap_free(dev, pos->handle); - - list_del(&pos->head); - kfree(pos); - --dev->ctx_count; - } - } - } - mutex_unlock(&dev->ctxlist_mutex); -} - /** * Context bitmap allocation. * @@ -121,12 +90,10 @@ static int drm_ctxbitmap_next(struct drm_device * dev) * * Initialise the drm_device::ctx_idr */ -void drm_legacy_ctxbitmap_init(struct drm_device * dev) +int drm_ctxbitmap_init(struct drm_device * dev) { - if (drm_core_check_feature(dev, DRIVER_MODESET)) - return; - idr_init(&dev->ctx_idr); + return 0; } /** @@ -137,7 +104,7 @@ void drm_legacy_ctxbitmap_init(struct drm_device * dev) * Free all idr members using drm_ctx_sarea_free helper function * while holding the drm_device::struct_mutex lock. */ -void drm_legacy_ctxbitmap_cleanup(struct drm_device * dev) +void drm_ctxbitmap_cleanup(struct drm_device * dev) { mutex_lock(&dev->struct_mutex); idr_destroy(&dev->ctx_idr); @@ -169,9 +136,6 @@ int drm_getsareactx(struct drm_device *dev, void *data, struct drm_local_map *map; struct drm_map_list *_entry; - if (drm_core_check_feature(dev, DRIVER_MODESET)) - return -EINVAL; - mutex_lock(&dev->struct_mutex); map = idr_find(&dev->ctx_idr, request->ctx_id); @@ -216,9 +180,6 @@ int drm_setsareactx(struct drm_device *dev, void *data, struct drm_local_map *map = NULL; struct drm_map_list *r_list = NULL; - if (drm_core_check_feature(dev, DRIVER_MODESET)) - return -EINVAL; - mutex_lock(&dev->struct_mutex); list_for_each_entry(r_list, &dev->maplist, head) { if (r_list->map @@ -319,9 +280,6 @@ int drm_resctx(struct drm_device *dev, void *data, struct drm_ctx ctx; int i; - if (drm_core_check_feature(dev, DRIVER_MODESET)) - return -EINVAL; - if (res->count >= DRM_RESERVED_CONTEXTS) { memset(&ctx, 0, sizeof(ctx)); for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) { @@ -352,9 +310,6 @@ int drm_addctx(struct drm_device *dev, void *data, struct drm_ctx_list *ctx_entry; struct drm_ctx *ctx = data; - if (drm_core_check_feature(dev, DRIVER_MODESET)) - return -EINVAL; - ctx->handle = drm_ctxbitmap_next(dev); if (ctx->handle == DRM_KERNEL_CONTEXT) { /* Skip kernel's context and get a new one. */ @@ -398,9 +353,6 @@ int drm_getctx(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_ctx *ctx = data; - if (drm_core_check_feature(dev, DRIVER_MODESET)) - return -EINVAL; - /* This is 0, because we don't handle any context flags */ ctx->flags = 0; @@ -423,9 +375,6 @@ int drm_switchctx(struct drm_device *dev, void *data, { struct drm_ctx *ctx = data; - if (drm_core_check_feature(dev, DRIVER_MODESET)) - return -EINVAL; - DRM_DEBUG("%d\n", ctx->handle); return drm_context_switch(dev, dev->last_context, ctx->handle); } @@ -446,9 +395,6 @@ int drm_newctx(struct drm_device *dev, void *data, { struct drm_ctx *ctx = data; - if (drm_core_check_feature(dev, DRIVER_MODESET)) - return -EINVAL; - DRM_DEBUG("%d\n", ctx->handle); drm_context_switch_complete(dev, file_priv, ctx->handle); @@ -471,9 +417,6 @@ int drm_rmctx(struct drm_device *dev, void *data, { struct drm_ctx *ctx = data; - if (drm_core_check_feature(dev, DRIVER_MODESET)) - return -EINVAL; - DRM_DEBUG("%d\n", ctx->handle); if (ctx->handle != DRM_KERNEL_CONTEXT) { if (dev->driver->context_dtor) diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c index 4be8e09a32ef..3f84277d7036 100644 --- a/drivers/gpu/drm/drm_fops.c +++ b/drivers/gpu/drm/drm_fops.c @@ -439,7 +439,26 @@ int drm_release(struct inode *inode, struct file *filp) if (dev->driver->driver_features & DRIVER_GEM) drm_gem_release(dev, file_priv); - drm_legacy_ctxbitmap_release(dev, file_priv); + mutex_lock(&dev->ctxlist_mutex); + if (!list_empty(&dev->ctxlist)) { + struct drm_ctx_list *pos, *n; + + list_for_each_entry_safe(pos, n, &dev->ctxlist, head) { + if (pos->tag == file_priv && + pos->handle != DRM_KERNEL_CONTEXT) { + if (dev->driver->context_dtor) + dev->driver->context_dtor(dev, + pos->handle); + + drm_ctxbitmap_free(dev, pos->handle); + + list_del(&pos->head); + kfree(pos); + --dev->ctx_count; + } + } + } + mutex_unlock(&dev->ctxlist_mutex); mutex_lock(&dev->struct_mutex); diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c index e7eb0276f7f1..39d864576be4 100644 --- a/drivers/gpu/drm/drm_stub.c +++ b/drivers/gpu/drm/drm_stub.c @@ -292,7 +292,13 @@ int drm_fill_in_dev(struct drm_device *dev, goto error_out_unreg; } - drm_legacy_ctxbitmap_init(dev); + + + retcode = drm_ctxbitmap_init(dev); + if (retcode) { + DRM_ERROR("Cannot allocate memory for context bitmap.\n"); + goto error_out_unreg; + } if (driver->driver_features & DRIVER_GEM) { retcode = drm_gem_init(dev); @@ -446,7 +452,7 @@ void drm_put_dev(struct drm_device *dev) drm_rmmap(dev, r_list->map); drm_ht_remove(&dev->map_hash); - drm_legacy_ctxbitmap_cleanup(dev); + drm_ctxbitmap_cleanup(dev); if (drm_core_check_feature(dev, DRIVER_MODESET)) drm_put_minor(&dev->control); diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 290734191f72..b46fb45f2cca 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -1322,10 +1322,9 @@ extern int drm_newctx(struct drm_device *dev, void *data, extern int drm_rmctx(struct drm_device *dev, void *data, struct drm_file *file_priv); -extern void drm_legacy_ctxbitmap_init(struct drm_device *dev); -extern void drm_legacy_ctxbitmap_cleanup(struct drm_device *dev); -extern void drm_legacy_ctxbitmap_release(struct drm_device *dev, - struct drm_file *file_priv); +extern int drm_ctxbitmap_init(struct drm_device *dev); +extern void drm_ctxbitmap_cleanup(struct drm_device *dev); +extern void drm_ctxbitmap_free(struct drm_device *dev, int ctx_handle); extern int drm_setsareactx(struct drm_device *dev, void *data, struct drm_file *file_priv); From 4dea5806d332f91d640d99943db99a5539e832c3 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Wed, 18 Sep 2013 21:05:20 -0700 Subject: [PATCH 307/350] cpufreq: return EEXIST instead of EBUSY for second registering On systems that support intel_pstate, acpi_cpufreq fails to load, and udev keeps trying until trace gets filled up and kernel crashes. The root cause is driver return ret from cpufreq_register_driver(), because when some other driver takes over before, it will return EBUSY and then udev will keep trying ... cpufreq_register_driver() should return EEXIST instead so that the system can boot without appending intel_pstate=disable and still use intel_pstate. Signed-off-by: Yinghai Lu Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 82ecbe39dfb0..89b3c52cd5c3 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -2104,7 +2104,7 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data) write_lock_irqsave(&cpufreq_driver_lock, flags); if (cpufreq_driver) { write_unlock_irqrestore(&cpufreq_driver_lock, flags); - return -EBUSY; + return -EEXIST; } cpufreq_driver = driver_data; write_unlock_irqrestore(&cpufreq_driver_lock, flags); From 59f67e16e6b79697241c3fd030e3da300377893e Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Mon, 16 Sep 2013 15:18:28 +0100 Subject: [PATCH 308/350] arm64: Make do_bad_area() function static This function is only called from arch/arm64/mm/fault.c. Signed-off-by: Catalin Marinas --- arch/arm64/mm/fault.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c index 6d6acf153bff..c23751b06120 100644 --- a/arch/arm64/mm/fault.c +++ b/arch/arm64/mm/fault.c @@ -130,7 +130,7 @@ static void __do_user_fault(struct task_struct *tsk, unsigned long addr, force_sig_info(sig, &si, tsk); } -void do_bad_area(unsigned long addr, unsigned int esr, struct pt_regs *regs) +static void do_bad_area(unsigned long addr, unsigned int esr, struct pt_regs *regs) { struct task_struct *tsk = current; struct mm_struct *mm = tsk->active_mm; From 374ed9d18e658704235b84a60589888ca52ab0fe Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Tue, 17 Sep 2013 11:46:23 +0100 Subject: [PATCH 309/350] arm64: documentation: tighten up tagged pointer documentation Commit d50240a5f6ce ("arm64: mm: permit use of tagged pointers at EL0") added support for tagged pointers in userspace, but the corresponding update to Documentation/ contained some imprecise statements. This patch fixes up some minor ambiguities in the text, hopefully making it more clear about exactly what the kernel expects from user virtual addresses. Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas --- Documentation/arm64/tagged-pointers.txt | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/Documentation/arm64/tagged-pointers.txt b/Documentation/arm64/tagged-pointers.txt index 264e9841563a..d9995f1f51b3 100644 --- a/Documentation/arm64/tagged-pointers.txt +++ b/Documentation/arm64/tagged-pointers.txt @@ -18,17 +18,17 @@ this byte for application use, with the following caveats: parameters containing user virtual addresses *must* have their top byte cleared before trapping to the kernel. - (2) Tags are not guaranteed to be preserved when delivering - signals. This means that signal handlers in applications - making use of tags cannot rely on the tag information for - user virtual addresses being maintained for fields inside - siginfo_t. One exception to this rule is for signals raised - in response to debug exceptions, where the tag information + (2) Non-zero tags are not preserved when delivering signals. + This means that signal handlers in applications making use + of tags cannot rely on the tag information for user virtual + addresses being maintained for fields inside siginfo_t. + One exception to this rule is for signals raised in response + to watchpoint debug exceptions, where the tag information will be preserved. (3) Special care should be taken when using tagged pointers, since it is likely that C compilers will not hazard two - addresses differing only in the upper bits. + virtual addresses differing only in the upper byte. The architecture prevents the use of a tagged PC, so the upper byte will be set to a sign-extension of bit 55 on exception return. From 6ca68e802612c87c31aa83d50c37ed0d88774a46 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Tue, 17 Sep 2013 18:49:46 +0100 Subject: [PATCH 310/350] arm64: Correctly report LR and SP for compat tasks When a task crashes and we print debugging information, ensure that compat tasks show the actual AArch32 LR and SP registers rather than the AArch64 ones. Signed-off-by: Catalin Marinas --- arch/arm64/kernel/process.c | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c index 57fb55c44c90..7ae8a1f00c3c 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -143,15 +143,26 @@ void machine_restart(char *cmd) void __show_regs(struct pt_regs *regs) { - int i; + int i, top_reg; + u64 lr, sp; + + if (compat_user_mode(regs)) { + lr = regs->compat_lr; + sp = regs->compat_sp; + top_reg = 12; + } else { + lr = regs->regs[30]; + sp = regs->sp; + top_reg = 29; + } show_regs_print_info(KERN_DEFAULT); print_symbol("PC is at %s\n", instruction_pointer(regs)); - print_symbol("LR is at %s\n", regs->regs[30]); + print_symbol("LR is at %s\n", lr); printk("pc : [<%016llx>] lr : [<%016llx>] pstate: %08llx\n", - regs->pc, regs->regs[30], regs->pstate); - printk("sp : %016llx\n", regs->sp); - for (i = 29; i >= 0; i--) { + regs->pc, lr, regs->pstate); + printk("sp : %016llx\n", sp); + for (i = top_reg; i >= 0; i--) { printk("x%-2d: %016llx ", i, regs->regs[i]); if (i % 2 == 0) printk("\n"); From 25804e6a96681d5d2142058948e218999e4f547c Mon Sep 17 00:00:00 2001 From: Steve Capper Date: Wed, 18 Sep 2013 16:14:28 +0100 Subject: [PATCH 311/350] arm64: Widen hwcap to be 64 bit Under arm64 elf_hwcap is a 32 bit quantity, but it is stored in a 64 bit auxiliary ELF field and glibc reads hwcap as 64 bit. This patch widens elf_hwcap to be 64 bit. Signed-off-by: Steve Capper Signed-off-by: Catalin Marinas --- arch/arm64/include/asm/hwcap.h | 2 +- arch/arm64/kernel/setup.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/include/asm/hwcap.h b/arch/arm64/include/asm/hwcap.h index 6d4482fa35bc..e2950b098e76 100644 --- a/arch/arm64/include/asm/hwcap.h +++ b/arch/arm64/include/asm/hwcap.h @@ -43,6 +43,6 @@ COMPAT_HWCAP_VFPv3|COMPAT_HWCAP_VFPv4|\ COMPAT_HWCAP_NEON|COMPAT_HWCAP_IDIV) -extern unsigned int elf_hwcap; +extern unsigned long elf_hwcap; #endif #endif diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 12ad8f3d0cfd..055cfb80e05c 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -57,7 +57,7 @@ unsigned int processor_id; EXPORT_SYMBOL(processor_id); -unsigned int elf_hwcap __read_mostly; +unsigned long elf_hwcap __read_mostly; EXPORT_SYMBOL_GPL(elf_hwcap); static const char *cpu_name; From 8f4c344696b9f9f8471d7f342076ef10ed7f66a5 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Thu, 19 Sep 2013 19:06:46 +0100 Subject: [PATCH 312/350] lockref: use cmpxchg64 explicitly for lockless updates The cmpxchg() function tends not to support 64-bit arguments on 32-bit architectures. This could be either due to use of unsigned long arguments (like on ARM) or lack of instruction support (cmpxchgq on x86). However, these architectures may implement a specific cmpxchg64() function to provide 64-bit cmpxchg support instead. Since the lockref code requires a 64-bit cmpxchg and relies on the architecture selecting ARCH_USE_CMPXCHG_LOCKREF, move to using cmpxchg64 instead of cmpxchg and allow 32-bit architectures to make use of the lockless lockref implementation. Cc: Waiman Long Signed-off-by: Will Deacon Signed-off-by: Linus Torvalds --- lib/lockref.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/lockref.c b/lib/lockref.c index e2cd2c0a8821..677d036cf3c7 100644 --- a/lib/lockref.c +++ b/lib/lockref.c @@ -14,8 +14,8 @@ while (likely(arch_spin_value_unlocked(old.lock.rlock.raw_lock))) { \ struct lockref new = old, prev = old; \ CODE \ - old.lock_count = cmpxchg(&lockref->lock_count, \ - old.lock_count, new.lock_count); \ + old.lock_count = cmpxchg64(&lockref->lock_count, \ + old.lock_count, new.lock_count); \ if (likely(old.lock_count == prev.lock_count)) { \ SUCCESS; \ } \ From 607566aeccde6ffccde5eef173ed0d277eec4a2d Mon Sep 17 00:00:00 2001 From: Josh Boyer Date: Fri, 20 Sep 2013 14:17:52 +0100 Subject: [PATCH 313/350] CacheFiles: Fix memory leak in cachefiles_check_auxdata error paths In cachefiles_check_auxdata(), we allocate auxbuf but fail to free it if we determine there's an error or that the data is stale. Further, assigning the output of vfs_getxattr() to auxbuf->len gives problems with checking for errors as auxbuf->len is a u16. We don't actually need to set auxbuf->len, so keep the length in a variable for now. We shouldn't need to check the upper limit of the buffer as an overflow there should be indicated by -ERANGE. While we're at it, fscache_check_aux() returns an enum value, not an int, so assign it to an appropriately typed variable rather than to ret. Signed-off-by: Josh Boyer Signed-off-by: David Howells cc: Hongyi Jia cc: Milosz Tanski Signed-off-by: Linus Torvalds --- fs/cachefiles/xattr.c | 29 +++++++++++++++-------------- 1 file changed, 15 insertions(+), 14 deletions(-) diff --git a/fs/cachefiles/xattr.c b/fs/cachefiles/xattr.c index 34c88b83e39f..12b0eef84183 100644 --- a/fs/cachefiles/xattr.c +++ b/fs/cachefiles/xattr.c @@ -162,8 +162,9 @@ int cachefiles_update_object_xattr(struct cachefiles_object *object, int cachefiles_check_auxdata(struct cachefiles_object *object) { struct cachefiles_xattr *auxbuf; + enum fscache_checkaux validity; struct dentry *dentry = object->dentry; - unsigned int dlen; + ssize_t xlen; int ret; ASSERT(dentry); @@ -174,22 +175,22 @@ int cachefiles_check_auxdata(struct cachefiles_object *object) if (!auxbuf) return -ENOMEM; - auxbuf->len = vfs_getxattr(dentry, cachefiles_xattr_cache, - &auxbuf->type, 512 + 1); - if (auxbuf->len < 1) - return -ESTALE; + xlen = vfs_getxattr(dentry, cachefiles_xattr_cache, + &auxbuf->type, 512 + 1); + ret = -ESTALE; + if (xlen < 1 || + auxbuf->type != object->fscache.cookie->def->type) + goto error; - if (auxbuf->type != object->fscache.cookie->def->type) - return -ESTALE; - - dlen = auxbuf->len - 1; - ret = fscache_check_aux(&object->fscache, &auxbuf->data, dlen); + xlen--; + validity = fscache_check_aux(&object->fscache, &auxbuf->data, xlen); + if (validity != FSCACHE_CHECKAUX_OKAY) + goto error; + ret = 0; +error: kfree(auxbuf); - if (ret != FSCACHE_CHECKAUX_OKAY) - return -ESTALE; - - return 0; + return ret; } /* From 509bf24d1810f120cb1e07cb2d30360a79601f71 Mon Sep 17 00:00:00 2001 From: David Howells Date: Fri, 20 Sep 2013 14:18:00 +0100 Subject: [PATCH 314/350] CacheFiles: Don't try to dump the index key if the cookie has been cleared Don't try to dump the index key that distinguishes an object if netfs data in the cookie the object refers to has been cleared (ie. the cookie has passed most of the way through __fscache_relinquish_cookie()). Since the netfs holds the index key, we can't get at it once the ->def and ->netfs_data pointers have been cleared - and a NULL pointer exception will ensue, usually just after a: CacheFiles: Error: Unexpected object collision error is reported. Signed-off-by: David Howells Signed-off-by: Linus Torvalds --- fs/cachefiles/namei.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c index 25badd1aec5c..f4a08d7fa2f7 100644 --- a/fs/cachefiles/namei.c +++ b/fs/cachefiles/namei.c @@ -56,7 +56,7 @@ void __cachefiles_printk_object(struct cachefiles_object *object, object->fscache.cookie->parent, object->fscache.cookie->netfs_data, object->fscache.cookie->flags); - if (keybuf) + if (keybuf && cookie->def) keylen = cookie->def->get_key(cookie->netfs_data, keybuf, CACHEFILES_KEYBUF_SIZE); else From d320f1b4811564052d5e3496a807a68c5ade791d Mon Sep 17 00:00:00 2001 From: Peter Meerwald Date: Wed, 18 Sep 2013 22:47:00 +0100 Subject: [PATCH 315/350] iio: Fix tmp006 dev-to-indio_dev conversion in suspend/resume dev_to_iio_dev() is a false friend Signed-off-by: Peter Meerwald Signed-off-by: Jonathan Cameron --- drivers/iio/temperature/tmp006.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/iio/temperature/tmp006.c b/drivers/iio/temperature/tmp006.c index 64ccde3f1f7a..6d63883da1ab 100644 --- a/drivers/iio/temperature/tmp006.c +++ b/drivers/iio/temperature/tmp006.c @@ -255,12 +255,14 @@ static int tmp006_remove(struct i2c_client *client) #ifdef CONFIG_PM_SLEEP static int tmp006_suspend(struct device *dev) { - return tmp006_powerdown(iio_priv(dev_to_iio_dev(dev))); + struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev)); + return tmp006_powerdown(iio_priv(indio_dev)); } static int tmp006_resume(struct device *dev) { - struct tmp006_data *data = iio_priv(dev_to_iio_dev(dev)); + struct tmp006_data *data = iio_priv(i2c_get_clientdata( + to_i2c_client(dev))); return i2c_smbus_write_word_swapped(data->client, TMP006_CONFIG, data->config | TMP006_CONFIG_MOD_MASK); } From 234efa1703ade3dc57a520829176378b26e831e0 Mon Sep 17 00:00:00 2001 From: Peter Meerwald Date: Wed, 18 Sep 2013 22:47:00 +0100 Subject: [PATCH 316/350] iio: Fix bma180 dev-to-indio_dev conversion in suspend/resume dev_to_iio_dev() is a false friend Signed-off-by: Peter Meerwald Cc: Oleksandr Kravchenko Signed-off-by: Jonathan Cameron --- drivers/iio/accel/bma180.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c index 12e32e6b4103..81e3dc260993 100644 --- a/drivers/iio/accel/bma180.c +++ b/drivers/iio/accel/bma180.c @@ -620,7 +620,7 @@ static int bma180_remove(struct i2c_client *client) #ifdef CONFIG_PM_SLEEP static int bma180_suspend(struct device *dev) { - struct iio_dev *indio_dev = dev_to_iio_dev(dev); + struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev)); struct bma180_data *data = iio_priv(indio_dev); int ret; @@ -633,7 +633,7 @@ static int bma180_suspend(struct device *dev) static int bma180_resume(struct device *dev) { - struct iio_dev *indio_dev = dev_to_iio_dev(dev); + struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev)); struct bma180_data *data = iio_priv(indio_dev); int ret; From a97dd06948e6ba1ff4fa2e046dd573b4f42a45c1 Mon Sep 17 00:00:00 2001 From: Peter Meerwald Date: Wed, 18 Sep 2013 22:47:00 +0100 Subject: [PATCH 317/350] iio: Fix mcp4725 dev-to-indio_dev conversion in suspend/resume dev_to_iio_dev() is a false friend Signed-off-by: Peter Meerwald Signed-off-by: Jonathan Cameron --- drivers/iio/dac/mcp4725.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/iio/dac/mcp4725.c b/drivers/iio/dac/mcp4725.c index 1f4a48e6a82c..1397b6e0e414 100644 --- a/drivers/iio/dac/mcp4725.c +++ b/drivers/iio/dac/mcp4725.c @@ -37,21 +37,21 @@ struct mcp4725_data { static int mcp4725_suspend(struct device *dev) { - struct iio_dev *indio_dev = dev_to_iio_dev(dev); - struct mcp4725_data *data = iio_priv(indio_dev); + struct mcp4725_data *data = iio_priv(i2c_get_clientdata( + to_i2c_client(dev))); u8 outbuf[2]; outbuf[0] = (data->powerdown_mode + 1) << 4; outbuf[1] = 0; data->powerdown = true; - return i2c_master_send(to_i2c_client(dev), outbuf, 2); + return i2c_master_send(data->client, outbuf, 2); } static int mcp4725_resume(struct device *dev) { - struct iio_dev *indio_dev = dev_to_iio_dev(dev); - struct mcp4725_data *data = iio_priv(indio_dev); + struct mcp4725_data *data = iio_priv(i2c_get_clientdata( + to_i2c_client(dev))); u8 outbuf[2]; /* restore previous DAC value */ @@ -59,7 +59,7 @@ static int mcp4725_resume(struct device *dev) outbuf[1] = data->dac_value & 0xff; data->powerdown = false; - return i2c_master_send(to_i2c_client(dev), outbuf, 2); + return i2c_master_send(data->client, outbuf, 2); } #ifdef CONFIG_PM_SLEEP From d66e0452bf6b0d98cd1a478918c92f2baffcb413 Mon Sep 17 00:00:00 2001 From: Peter Meerwald Date: Wed, 18 Sep 2013 22:10:00 +0100 Subject: [PATCH 318/350] iio: Fix crash when scan_bytes is computed with active_scan_mask == NULL if device has available_scan_masks set and the buffer is enabled without any scan_elements enabled, in a NULL pointer is dereferenced in iio_compute_scan_bytes() [ 18.993713] Unable to handle kernel NULL pointer dereference at virtual address 00000000 [ 19.002593] pgd = debd4000 [ 19.005432] [00000000] *pgd=9ebc0831, *pte=00000000, *ppte=00000000 [ 19.012329] Internal error: Oops: 17 [#1] PREEMPT ARM [ 19.017639] Modules linked in: [ 19.020843] CPU: 0 Not tainted (3.9.11-00036-g75c888a-dirty #207) [ 19.027587] PC is at _find_first_bit_le+0xc/0x2c [ 19.032440] LR is at iio_compute_scan_bytes+0x2c/0xf4 [ 19.037719] pc : [] lr : [] psr: 200d0013 [ 19.037719] sp : debd9ed0 ip : 00000000 fp : 000802bc [ 19.049713] r10: 00000000 r9 : 00000000 r8 : deb67250 [ 19.055206] r7 : 00000000 r6 : 00000000 r5 : 00000000 r4 : deb67000 [ 19.062011] r3 : de96ec00 r2 : 00000000 r1 : 00000004 r0 : 00000000 [ 19.068847] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 19.076324] Control: 10c5387d Table: 9ebd4019 DAC: 00000015 problem is the rollback code in iio_update_buffers(), old_mask may be NULL (e.g. on first call) I'm not too confident about the fix; works for me... Signed-off-by: Peter Meerwald Reviewed-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron --- drivers/iio/industrialio-buffer.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c index e73033f3839a..5862c88ed5ad 100644 --- a/drivers/iio/industrialio-buffer.c +++ b/drivers/iio/industrialio-buffer.c @@ -528,8 +528,15 @@ int iio_update_buffers(struct iio_dev *indio_dev, * Note can only occur when adding a buffer. */ list_del(&insert_buffer->buffer_list); - indio_dev->active_scan_mask = old_mask; - success = -EINVAL; + if (old_mask) { + indio_dev->active_scan_mask = old_mask; + success = -EINVAL; + } + else { + kfree(compound_mask); + ret = -EINVAL; + goto error_ret; + } } } else { indio_dev->active_scan_mask = compound_mask; From a87c82e454f184a9473f8cdfd4d304205f585f65 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Wed, 18 Sep 2013 21:02:00 +0100 Subject: [PATCH 319/350] iio: Stop sampling when the device is removed Make sure to stop sampling when the device is removed, otherwise it will continue to sample forever. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron --- drivers/iio/iio_core.h | 4 ++++ drivers/iio/industrialio-buffer.c | 19 +++++++++++++++++++ drivers/iio/industrialio-core.c | 6 +++++- 3 files changed, 28 insertions(+), 1 deletion(-) diff --git a/drivers/iio/iio_core.h b/drivers/iio/iio_core.h index 05c1b74502a3..9b32253b824b 100644 --- a/drivers/iio/iio_core.h +++ b/drivers/iio/iio_core.h @@ -49,11 +49,15 @@ ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf, #define iio_buffer_poll_addr (&iio_buffer_poll) #define iio_buffer_read_first_n_outer_addr (&iio_buffer_read_first_n_outer) +void iio_disable_all_buffers(struct iio_dev *indio_dev); + #else #define iio_buffer_poll_addr NULL #define iio_buffer_read_first_n_outer_addr NULL +static inline void iio_disable_all_buffers(struct iio_dev *indio_dev) {} + #endif int iio_device_register_eventset(struct iio_dev *indio_dev); diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c index 5862c88ed5ad..2710f7245c3b 100644 --- a/drivers/iio/industrialio-buffer.c +++ b/drivers/iio/industrialio-buffer.c @@ -460,6 +460,25 @@ static int iio_compute_scan_bytes(struct iio_dev *indio_dev, const long *mask, return bytes; } +void iio_disable_all_buffers(struct iio_dev *indio_dev) +{ + struct iio_buffer *buffer, *_buffer; + + if (list_empty(&indio_dev->buffer_list)) + return; + + if (indio_dev->setup_ops->predisable) + indio_dev->setup_ops->predisable(indio_dev); + + list_for_each_entry_safe(buffer, _buffer, + &indio_dev->buffer_list, buffer_list) + list_del_init(&buffer->buffer_list); + + indio_dev->currentmode = INDIO_DIRECT_MODE; + if (indio_dev->setup_ops->postdisable) + indio_dev->setup_ops->postdisable(indio_dev); +} + int iio_update_buffers(struct iio_dev *indio_dev, struct iio_buffer *insert_buffer, struct iio_buffer *remove_buffer) diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index 97f0297b120f..2cc0778a7328 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -1078,9 +1078,13 @@ EXPORT_SYMBOL(iio_device_register); void iio_device_unregister(struct iio_dev *indio_dev) { mutex_lock(&indio_dev->info_exist_lock); + + device_del(&indio_dev->dev); + + iio_disable_all_buffers(indio_dev); + indio_dev->info = NULL; mutex_unlock(&indio_dev->info_exist_lock); - device_del(&indio_dev->dev); } EXPORT_SYMBOL(iio_device_unregister); subsys_initcall(iio_init); From cadc2125e140f7122bf1b59d42486cfc778c7286 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Wed, 18 Sep 2013 21:02:00 +0100 Subject: [PATCH 320/350] iio: fix: Keep a reference to the IIO device for open file descriptors Make sure that the IIO device is not freed while we still have file descriptors for it. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron --- drivers/iio/industrialio-core.c | 4 ++++ drivers/iio/industrialio-event.c | 18 +++++++++++++----- 2 files changed, 17 insertions(+), 5 deletions(-) diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index 2cc0778a7328..8f7b6c9f92dc 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -970,6 +970,8 @@ static int iio_chrdev_open(struct inode *inode, struct file *filp) if (test_and_set_bit(IIO_BUSY_BIT_POS, &indio_dev->flags)) return -EBUSY; + iio_device_get(indio_dev); + filp->private_data = indio_dev; return 0; @@ -983,6 +985,8 @@ static int iio_chrdev_release(struct inode *inode, struct file *filp) struct iio_dev *indio_dev = container_of(inode->i_cdev, struct iio_dev, chrdev); clear_bit(IIO_BUSY_BIT_POS, &indio_dev->flags); + iio_device_put(indio_dev); + return 0; } diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c index f146acd12737..6be65ef5faa9 100644 --- a/drivers/iio/industrialio-event.c +++ b/drivers/iio/industrialio-event.c @@ -72,7 +72,8 @@ EXPORT_SYMBOL(iio_push_event); static unsigned int iio_event_poll(struct file *filep, struct poll_table_struct *wait) { - struct iio_event_interface *ev_int = filep->private_data; + struct iio_dev *indio_dev = filep->private_data; + struct iio_event_interface *ev_int = indio_dev->event_interface; unsigned int events = 0; poll_wait(filep, &ev_int->wait, wait); @@ -90,7 +91,8 @@ static ssize_t iio_event_chrdev_read(struct file *filep, size_t count, loff_t *f_ps) { - struct iio_event_interface *ev_int = filep->private_data; + struct iio_dev *indio_dev = filep->private_data; + struct iio_event_interface *ev_int = indio_dev->event_interface; unsigned int copied; int ret; @@ -121,7 +123,8 @@ error_unlock: static int iio_event_chrdev_release(struct inode *inode, struct file *filep) { - struct iio_event_interface *ev_int = filep->private_data; + struct iio_dev *indio_dev = filep->private_data; + struct iio_event_interface *ev_int = indio_dev->event_interface; spin_lock_irq(&ev_int->wait.lock); __clear_bit(IIO_BUSY_BIT_POS, &ev_int->flags); @@ -133,6 +136,8 @@ static int iio_event_chrdev_release(struct inode *inode, struct file *filep) kfifo_reset_out(&ev_int->det_events); spin_unlock_irq(&ev_int->wait.lock); + iio_device_put(indio_dev); + return 0; } @@ -158,12 +163,15 @@ int iio_event_getfd(struct iio_dev *indio_dev) return -EBUSY; } spin_unlock_irq(&ev_int->wait.lock); - fd = anon_inode_getfd("iio:event", - &iio_event_chrdev_fileops, ev_int, O_RDONLY); + iio_device_get(indio_dev); + + fd = anon_inode_getfd("iio:event", &iio_event_chrdev_fileops, + indio_dev, O_RDONLY); if (fd < 0) { spin_lock_irq(&ev_int->wait.lock); __clear_bit(IIO_BUSY_BIT_POS, &ev_int->flags); spin_unlock_irq(&ev_int->wait.lock); + iio_device_put(indio_dev); } return fd; } From 0d5b7dae897b61a2372916b1c93f6cee6b8049b1 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Wed, 18 Sep 2013 21:02:00 +0100 Subject: [PATCH 321/350] iio: Prevent race between IIO chardev opening and IIO device free Set the IIO device as the parent for the character device We need to make sure that the IIO device is not freed while the character device exists, otherwise the freeing of the IIO device might race against the file open callback. Do this by setting the character device's parent to the IIO device, this will cause the character device to grab a reference to the IIO device and only release it once the character device itself has been removed. Also move the registration of the character device before the registration of the IIO device to avoid the (rather theoretical case) that the IIO device is already freed again before we can add the character device and grab a reference to the IIO device. We also need to move the call to cdev_del() from iio_dev_release() to iio_device_unregister() (where it should have been in the first place anyway) to avoid a reference cycle. As iio_dev_release() is only called once all reference are dropped, but the character device holds a reference to the IIO device. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron --- drivers/iio/industrialio-core.c | 21 ++++++++++++--------- 1 file changed, 12 insertions(+), 9 deletions(-) diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index 8f7b6c9f92dc..8e84cd522e49 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -848,8 +848,6 @@ static void iio_device_unregister_sysfs(struct iio_dev *indio_dev) static void iio_dev_release(struct device *device) { struct iio_dev *indio_dev = dev_to_iio_dev(device); - if (indio_dev->chrdev.dev) - cdev_del(&indio_dev->chrdev); if (indio_dev->modes & INDIO_BUFFER_TRIGGERED) iio_device_unregister_trigger_consumer(indio_dev); iio_device_unregister_eventset(indio_dev); @@ -1056,18 +1054,20 @@ int iio_device_register(struct iio_dev *indio_dev) indio_dev->setup_ops == NULL) indio_dev->setup_ops = &noop_ring_setup_ops; - ret = device_add(&indio_dev->dev); - if (ret < 0) - goto error_unreg_eventset; cdev_init(&indio_dev->chrdev, &iio_buffer_fileops); indio_dev->chrdev.owner = indio_dev->info->driver_module; + indio_dev->chrdev.kobj.parent = &indio_dev->dev.kobj; ret = cdev_add(&indio_dev->chrdev, indio_dev->dev.devt, 1); if (ret < 0) - goto error_del_device; - return 0; + goto error_unreg_eventset; -error_del_device: - device_del(&indio_dev->dev); + ret = device_add(&indio_dev->dev); + if (ret < 0) + goto error_cdev_del; + + return 0; +error_cdev_del: + cdev_del(&indio_dev->chrdev); error_unreg_eventset: iio_device_unregister_eventset(indio_dev); error_free_sysfs: @@ -1085,6 +1085,9 @@ void iio_device_unregister(struct iio_dev *indio_dev) device_del(&indio_dev->dev); + if (indio_dev->chrdev.dev) + cdev_del(&indio_dev->chrdev); + iio_disable_all_buffers(indio_dev); indio_dev->info = NULL; From bda2f8fca20b564ac8edb2b9c080d942c2144359 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Wed, 18 Sep 2013 21:02:00 +0100 Subject: [PATCH 322/350] iio:buffer_cb: Add missing iio_buffer_init() Make sure to properly initialize the IIO buffer data structure. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron --- drivers/iio/buffer_cb.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iio/buffer_cb.c b/drivers/iio/buffer_cb.c index 9d19ba74f22b..415f3c6efd72 100644 --- a/drivers/iio/buffer_cb.c +++ b/drivers/iio/buffer_cb.c @@ -41,6 +41,8 @@ struct iio_cb_buffer *iio_channel_get_all_cb(struct device *dev, goto error_ret; } + iio_buffer_init(&cb_buff->buffer); + cb_buff->private = private; cb_buff->cb = cb; cb_buff->buffer.access = &iio_cb_access; From 83d4cfd4da57b6ff16296875a962de2158799de6 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Fri, 30 Aug 2013 15:09:51 -0400 Subject: [PATCH 323/350] Btrfs: fixup error handling in btrfs_reloc_cow If we failed to actually allocate the correct size of the extent to relocate we will end up in an infinite loop because we won't return an error, we'll just move on to the next extent. So fix this up by returning an error, and then fix all the callers to return an error up the stack rather than BUG_ON()'ing. Thanks, Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/ctree.c | 7 +++++-- fs/btrfs/ctree.h | 6 +++--- fs/btrfs/relocation.c | 41 ++++++++++++++++++++++++----------------- 3 files changed, 32 insertions(+), 22 deletions(-) diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index 64346721173f..61b5bcd57b7e 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -1005,8 +1005,11 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans, return ret; } - if (root->ref_cows) - btrfs_reloc_cow_block(trans, root, buf, cow); + if (root->ref_cows) { + ret = btrfs_reloc_cow_block(trans, root, buf, cow); + if (ret) + return ret; + } if (buf == root->node) { WARN_ON(parent && parent != buf); diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 3c1da6f98a4d..2491ba076b42 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -3939,9 +3939,9 @@ int btrfs_update_reloc_root(struct btrfs_trans_handle *trans, struct btrfs_root *root); int btrfs_recover_relocation(struct btrfs_root *root); int btrfs_reloc_clone_csums(struct inode *inode, u64 file_pos, u64 len); -void btrfs_reloc_cow_block(struct btrfs_trans_handle *trans, - struct btrfs_root *root, struct extent_buffer *buf, - struct extent_buffer *cow); +int btrfs_reloc_cow_block(struct btrfs_trans_handle *trans, + struct btrfs_root *root, struct extent_buffer *buf, + struct extent_buffer *cow); void btrfs_reloc_pre_snapshot(struct btrfs_trans_handle *trans, struct btrfs_pending_snapshot *pending, u64 *bytes_to_reserve); diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index aacc2121e87c..09b2b9a0a491 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -1548,7 +1548,7 @@ static int get_new_location(struct inode *reloc_inode, u64 *new_bytenr, btrfs_file_extent_other_encoding(leaf, fi)); if (num_bytes != btrfs_file_extent_disk_num_bytes(leaf, fi)) { - ret = 1; + ret = -EINVAL; goto out; } @@ -1579,7 +1579,7 @@ int replace_file_extents(struct btrfs_trans_handle *trans, u64 end; u32 nritems; u32 i; - int ret; + int ret = 0; int first = 1; int dirty = 0; @@ -1642,11 +1642,13 @@ int replace_file_extents(struct btrfs_trans_handle *trans, ret = get_new_location(rc->data_inode, &new_bytenr, bytenr, num_bytes); - if (ret > 0) { - WARN_ON(1); - continue; + if (ret) { + /* + * Don't have to abort since we've not changed anything + * in the file extent yet. + */ + break; } - BUG_ON(ret < 0); btrfs_set_file_extent_disk_bytenr(leaf, fi, new_bytenr); dirty = 1; @@ -1656,18 +1658,24 @@ int replace_file_extents(struct btrfs_trans_handle *trans, num_bytes, parent, btrfs_header_owner(leaf), key.objectid, key.offset, 1); - BUG_ON(ret); + if (ret) { + btrfs_abort_transaction(trans, root, ret); + break; + } ret = btrfs_free_extent(trans, root, bytenr, num_bytes, parent, btrfs_header_owner(leaf), key.objectid, key.offset, 1); - BUG_ON(ret); + if (ret) { + btrfs_abort_transaction(trans, root, ret); + break; + } } if (dirty) btrfs_mark_buffer_dirty(leaf); if (inode) btrfs_add_delayed_iput(inode); - return 0; + return ret; } static noinline_for_stack @@ -4499,19 +4507,19 @@ out: return ret; } -void btrfs_reloc_cow_block(struct btrfs_trans_handle *trans, - struct btrfs_root *root, struct extent_buffer *buf, - struct extent_buffer *cow) +int btrfs_reloc_cow_block(struct btrfs_trans_handle *trans, + struct btrfs_root *root, struct extent_buffer *buf, + struct extent_buffer *cow) { struct reloc_control *rc; struct backref_node *node; int first_cow = 0; int level; - int ret; + int ret = 0; rc = root->fs_info->reloc_ctl; if (!rc) - return; + return 0; BUG_ON(rc->stage == UPDATE_DATA_PTRS && root->root_key.objectid == BTRFS_DATA_RELOC_TREE_OBJECTID); @@ -4547,10 +4555,9 @@ void btrfs_reloc_cow_block(struct btrfs_trans_handle *trans, rc->nodes_relocated += buf->len; } - if (level == 0 && first_cow && rc->stage == UPDATE_DATA_PTRS) { + if (level == 0 && first_cow && rc->stage == UPDATE_DATA_PTRS) ret = replace_file_extents(trans, rc, root, cow); - BUG_ON(ret); - } + return ret; } /* From 55e50e458e760f4d0c183978dcc20b07a7f6e20e Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Sun, 1 Sep 2013 18:56:44 +0300 Subject: [PATCH 324/350] Btrfs: do not add replace target to the alloc_list If replace was suspended by the umount, replace target device is added to the fs_devices->alloc_list during a later mount. This is obviously wrong. ->is_tgtdev_for_dev_replace is supposed to guard against that, but ->is_tgtdev_for_dev_replace is (and can only ever be) initialized *after* everything is opened and fs_devices lists are populated. Fix this by checking the devid instead: for replace targets it's always equal to BTRFS_DEV_REPLACE_DEVID. Cc: Stefan Behrens Signed-off-by: Ilya Dryomov Reviewed-by: Stefan Behrens Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/volumes.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 0db165ee4340..a0577352eb6e 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -796,7 +796,8 @@ static int __btrfs_open_devices(struct btrfs_fs_devices *fs_devices, fs_devices->rotating = 1; fs_devices->open_devices++; - if (device->writeable && !device->is_tgtdev_for_dev_replace) { + if (device->writeable && + device->devid != BTRFS_DEV_REPLACE_DEVID) { fs_devices->rw_devices++; list_add(&device->dev_alloc_list, &fs_devices->alloc_list); From cef2193729595686f787c5858aad69b4369de757 Mon Sep 17 00:00:00 2001 From: Filipe David Borba Manana Date: Mon, 2 Sep 2013 12:19:13 +0100 Subject: [PATCH 325/350] Btrfs: more efficient inode tree replace operation Instead of removing the current inode from the red black tree and then add the new one, just use the red black tree replace operation, which is more efficient. Signed-off-by: Filipe David Borba Manana Reviewed-by: Zach Brown Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/inode.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 6091ba9d2494..abed81d93687 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -4688,11 +4688,11 @@ static void inode_tree_add(struct inode *inode) struct btrfs_inode *entry; struct rb_node **p; struct rb_node *parent; + struct rb_node *new = &BTRFS_I(inode)->rb_node; u64 ino = btrfs_ino(inode); if (inode_unhashed(inode)) return; -again: parent = NULL; spin_lock(&root->inode_lock); p = &root->inode_tree.rb_node; @@ -4707,14 +4707,14 @@ again: else { WARN_ON(!(entry->vfs_inode.i_state & (I_WILL_FREE | I_FREEING))); - rb_erase(parent, &root->inode_tree); + rb_replace_node(parent, new, &root->inode_tree); RB_CLEAR_NODE(parent); spin_unlock(&root->inode_lock); - goto again; + return; } } - rb_link_node(&BTRFS_I(inode)->rb_node, parent, p); - rb_insert_color(&BTRFS_I(inode)->rb_node, &root->inode_tree); + rb_link_node(new, parent, p); + rb_insert_color(new, &root->inode_tree); spin_unlock(&root->inode_lock); } From 79556c3d882a848c8faabddc487b033c4e78f7c5 Mon Sep 17 00:00:00 2001 From: Stefan Behrens Date: Tue, 3 Sep 2013 15:25:27 +0200 Subject: [PATCH 326/350] btrfs: show compiled-in config features at module load time We want to know if there are debugging features compiled in, this may affect performance. The message is printed before the sanity checks. (This commit message is a copy of David Sterba's commit message when he introduced btrfs_print_info()). Signed-off-by: Stefan Behrens Reviewed-by: David Sterba Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/super.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 3aab10ce63e8..58cb83f23b1a 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -1762,6 +1762,9 @@ static void btrfs_print_info(void) #ifdef CONFIG_BTRFS_DEBUG ", debug=on" #endif +#ifdef CONFIG_BTRFS_ASSERT + ", assert=on" +#endif #ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY ", integrity-checker=on" #endif From 13fd8da98f79317d26277360d510caa1edf9bab3 Mon Sep 17 00:00:00 2001 From: David Sterba Date: Tue, 3 Sep 2013 18:28:57 +0200 Subject: [PATCH 327/350] btrfs: add lockdep and tracing annotations for uuid tree Signed-off-by: David Sterba Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/disk-io.c | 1 + include/trace/events/btrfs.h | 1 + 2 files changed, 2 insertions(+) diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 4cbb00af92ff..72cf08b2be85 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -157,6 +157,7 @@ static struct btrfs_lockdep_keyset { { .id = BTRFS_TREE_LOG_OBJECTID, .name_stem = "log" }, { .id = BTRFS_TREE_RELOC_OBJECTID, .name_stem = "treloc" }, { .id = BTRFS_DATA_RELOC_TREE_OBJECTID, .name_stem = "dreloc" }, + { .id = BTRFS_UUID_TREE_OBJECTID, .name_stem = "uuid" }, { .id = 0, .name_stem = "tree" }, }; diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h index 45702c3c3837..f18b3b76e01e 100644 --- a/include/trace/events/btrfs.h +++ b/include/trace/events/btrfs.h @@ -42,6 +42,7 @@ struct extent_buffer; { BTRFS_TREE_LOG_OBJECTID, "TREE_LOG" }, \ { BTRFS_QUOTA_TREE_OBJECTID, "QUOTA_TREE" }, \ { BTRFS_TREE_RELOC_OBJECTID, "TREE_RELOC" }, \ + { BTRFS_UUID_TREE_OBJECTID, "UUID_RELOC" }, \ { BTRFS_DATA_RELOC_TREE_OBJECTID, "DATA_RELOC_TREE" }) #define show_root_type(obj) \ From a482039889b85c45fc9616e65d560db7a35d4f54 Mon Sep 17 00:00:00 2001 From: Miao Xie Date: Mon, 9 Sep 2013 13:19:42 +0800 Subject: [PATCH 328/350] Btrfs: allocate the free space by the existed max extent size when ENOSPC By the current code, if the requested size is very large, and all the extents in the free space cache are small, we will waste lots of the cpu time to cut the requested size in half and search the cache again and again until it gets down to the size the allocator can return. In fact, we can know the max extent size in the cache after the first search, so we needn't cut the size in half repeatedly, and just use the max extent size directly. This way can save lots of cpu time and make the performance grow up when there are only fragments in the free space cache. According to my test, if there are only 4KB free space extents in the fs, and the total size of those extents are 256MB, we can reduce the execute time of the following test from 5.4s to 1.4s. dd if=/dev/zero of= bs=1MB count=1 oflag=sync Changelog v2 -> v3: - fix the problem that we skip the block group with the space which is less than we need. Changelog v1 -> v2: - address the problem that we return a wrong start position when searching the free space in a bitmap. Signed-off-by: Miao Xie Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/extent-tree.c | 33 +++++++++++++----- fs/btrfs/free-space-cache.c | 67 ++++++++++++++++++++++++++----------- fs/btrfs/free-space-cache.h | 5 +-- 3 files changed, 74 insertions(+), 31 deletions(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index cfb3cf711b34..2f03181b777f 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -6117,10 +6117,13 @@ enum btrfs_loop_type { /* * walks the btree of allocated extents and find a hole of a given size. * The key ins is changed to record the hole: - * ins->objectid == block start + * ins->objectid == start position * ins->flags = BTRFS_EXTENT_ITEM_KEY - * ins->offset == number of blocks + * ins->offset == the size of the hole. * Any available blocks before search_start are skipped. + * + * If there is no suitable free space, we will record the max size of + * the free space extent currently. */ static noinline int find_free_extent(struct btrfs_root *orig_root, u64 num_bytes, u64 empty_size, @@ -6133,6 +6136,7 @@ static noinline int find_free_extent(struct btrfs_root *orig_root, struct btrfs_block_group_cache *block_group = NULL; struct btrfs_block_group_cache *used_block_group; u64 search_start = 0; + u64 max_extent_size = 0; int empty_cluster = 2 * 1024 * 1024; struct btrfs_space_info *space_info; int loop = 0; @@ -6292,7 +6296,10 @@ have_block_group: btrfs_get_block_group(used_block_group); offset = btrfs_alloc_from_cluster(used_block_group, - last_ptr, num_bytes, used_block_group->key.objectid); + last_ptr, + num_bytes, + used_block_group->key.objectid, + &max_extent_size); if (offset) { /* we have a block, we're done */ spin_unlock(&last_ptr->refill_lock); @@ -6355,8 +6362,10 @@ refill_cluster: * cluster */ offset = btrfs_alloc_from_cluster(block_group, - last_ptr, num_bytes, - search_start); + last_ptr, + num_bytes, + search_start, + &max_extent_size); if (offset) { /* we found one, proceed */ spin_unlock(&last_ptr->refill_lock); @@ -6391,13 +6400,18 @@ unclustered_alloc: if (cached && block_group->free_space_ctl->free_space < num_bytes + empty_cluster + empty_size) { + if (block_group->free_space_ctl->free_space > + max_extent_size) + max_extent_size = + block_group->free_space_ctl->free_space; spin_unlock(&block_group->free_space_ctl->tree_lock); goto loop; } spin_unlock(&block_group->free_space_ctl->tree_lock); offset = btrfs_find_space_for_alloc(block_group, search_start, - num_bytes, empty_size); + num_bytes, empty_size, + &max_extent_size); /* * If we didn't find a chunk, and we haven't failed on this * block group before, and this block group is in the middle of @@ -6515,7 +6529,8 @@ loop: ret = 0; } out: - + if (ret == -ENOSPC) + ins->offset = max_extent_size; return ret; } @@ -6573,8 +6588,8 @@ again: flags); if (ret == -ENOSPC) { - if (!final_tried) { - num_bytes = num_bytes >> 1; + if (!final_tried && ins->offset) { + num_bytes = min(num_bytes >> 1, ins->offset); num_bytes = round_down(num_bytes, root->sectorsize); num_bytes = max(num_bytes, min_alloc_size); if (num_bytes == min_alloc_size) diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index ef3bea7bb257..4f419bafd071 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -1433,13 +1433,19 @@ static void bitmap_set_bits(struct btrfs_free_space_ctl *ctl, ctl->free_space += bytes; } +/* + * If we can not find suitable extent, we will use bytes to record + * the size of the max extent. + */ static int search_bitmap(struct btrfs_free_space_ctl *ctl, struct btrfs_free_space *bitmap_info, u64 *offset, u64 *bytes) { unsigned long found_bits = 0; + unsigned long max_bits = 0; unsigned long bits, i; unsigned long next_zero; + unsigned long extent_bits; i = offset_to_bit(bitmap_info->offset, ctl->unit, max_t(u64, *offset, bitmap_info->offset)); @@ -1448,9 +1454,12 @@ static int search_bitmap(struct btrfs_free_space_ctl *ctl, for_each_set_bit_from(i, bitmap_info->bitmap, BITS_PER_BITMAP) { next_zero = find_next_zero_bit(bitmap_info->bitmap, BITS_PER_BITMAP, i); - if ((next_zero - i) >= bits) { - found_bits = next_zero - i; + extent_bits = next_zero - i; + if (extent_bits >= bits) { + found_bits = extent_bits; break; + } else if (extent_bits > max_bits) { + max_bits = extent_bits; } i = next_zero; } @@ -1461,38 +1470,41 @@ static int search_bitmap(struct btrfs_free_space_ctl *ctl, return 0; } + *bytes = (u64)(max_bits) * ctl->unit; return -1; } +/* Cache the size of the max extent in bytes */ static struct btrfs_free_space * find_free_space(struct btrfs_free_space_ctl *ctl, u64 *offset, u64 *bytes, - unsigned long align) + unsigned long align, u64 *max_extent_size) { struct btrfs_free_space *entry; struct rb_node *node; - u64 ctl_off; u64 tmp; u64 align_off; int ret; if (!ctl->free_space_offset.rb_node) - return NULL; + goto out; entry = tree_search_offset(ctl, offset_to_bitmap(ctl, *offset), 0, 1); if (!entry) - return NULL; + goto out; for (node = &entry->offset_index; node; node = rb_next(node)) { entry = rb_entry(node, struct btrfs_free_space, offset_index); - if (entry->bytes < *bytes) + if (entry->bytes < *bytes) { + if (entry->bytes > *max_extent_size) + *max_extent_size = entry->bytes; continue; + } /* make sure the space returned is big enough * to match our requested alignment */ if (*bytes >= align) { - ctl_off = entry->offset - ctl->start; - tmp = ctl_off + align - 1;; + tmp = entry->offset - ctl->start + align - 1; do_div(tmp, align); tmp = tmp * align + ctl->start; align_off = tmp - entry->offset; @@ -1501,14 +1513,22 @@ find_free_space(struct btrfs_free_space_ctl *ctl, u64 *offset, u64 *bytes, tmp = entry->offset; } - if (entry->bytes < *bytes + align_off) + if (entry->bytes < *bytes + align_off) { + if (entry->bytes > *max_extent_size) + *max_extent_size = entry->bytes; continue; + } if (entry->bitmap) { - ret = search_bitmap(ctl, entry, &tmp, bytes); + u64 size = *bytes; + + ret = search_bitmap(ctl, entry, &tmp, &size); if (!ret) { *offset = tmp; + *bytes = size; return entry; + } else if (size > *max_extent_size) { + *max_extent_size = size; } continue; } @@ -1517,7 +1537,7 @@ find_free_space(struct btrfs_free_space_ctl *ctl, u64 *offset, u64 *bytes, *bytes = entry->bytes - align_off; return entry; } - +out: return NULL; } @@ -2118,7 +2138,8 @@ void btrfs_remove_free_space_cache(struct btrfs_block_group_cache *block_group) } u64 btrfs_find_space_for_alloc(struct btrfs_block_group_cache *block_group, - u64 offset, u64 bytes, u64 empty_size) + u64 offset, u64 bytes, u64 empty_size, + u64 *max_extent_size) { struct btrfs_free_space_ctl *ctl = block_group->free_space_ctl; struct btrfs_free_space *entry = NULL; @@ -2129,7 +2150,7 @@ u64 btrfs_find_space_for_alloc(struct btrfs_block_group_cache *block_group, spin_lock(&ctl->tree_lock); entry = find_free_space(ctl, &offset, &bytes_search, - block_group->full_stripe_len); + block_group->full_stripe_len, max_extent_size); if (!entry) goto out; @@ -2139,7 +2160,6 @@ u64 btrfs_find_space_for_alloc(struct btrfs_block_group_cache *block_group, if (!entry->bytes) free_bitmap(ctl, entry); } else { - unlink_free_space(ctl, entry); align_gap_len = offset - entry->offset; align_gap = entry->offset; @@ -2153,7 +2173,6 @@ u64 btrfs_find_space_for_alloc(struct btrfs_block_group_cache *block_group, else link_free_space(ctl, entry); } - out: spin_unlock(&ctl->tree_lock); @@ -2208,7 +2227,8 @@ int btrfs_return_cluster_to_free_space( static u64 btrfs_alloc_from_bitmap(struct btrfs_block_group_cache *block_group, struct btrfs_free_cluster *cluster, struct btrfs_free_space *entry, - u64 bytes, u64 min_start) + u64 bytes, u64 min_start, + u64 *max_extent_size) { struct btrfs_free_space_ctl *ctl = block_group->free_space_ctl; int err; @@ -2220,8 +2240,11 @@ static u64 btrfs_alloc_from_bitmap(struct btrfs_block_group_cache *block_group, search_bytes = bytes; err = search_bitmap(ctl, entry, &search_start, &search_bytes); - if (err) + if (err) { + if (search_bytes > *max_extent_size) + *max_extent_size = search_bytes; return 0; + } ret = search_start; __bitmap_clear_bits(ctl, entry, ret, bytes); @@ -2236,7 +2259,7 @@ static u64 btrfs_alloc_from_bitmap(struct btrfs_block_group_cache *block_group, */ u64 btrfs_alloc_from_cluster(struct btrfs_block_group_cache *block_group, struct btrfs_free_cluster *cluster, u64 bytes, - u64 min_start) + u64 min_start, u64 *max_extent_size) { struct btrfs_free_space_ctl *ctl = block_group->free_space_ctl; struct btrfs_free_space *entry = NULL; @@ -2256,6 +2279,9 @@ u64 btrfs_alloc_from_cluster(struct btrfs_block_group_cache *block_group, entry = rb_entry(node, struct btrfs_free_space, offset_index); while(1) { + if (entry->bytes < bytes && entry->bytes > *max_extent_size) + *max_extent_size = entry->bytes; + if (entry->bytes < bytes || (!entry->bitmap && entry->offset < min_start)) { node = rb_next(&entry->offset_index); @@ -2269,7 +2295,8 @@ u64 btrfs_alloc_from_cluster(struct btrfs_block_group_cache *block_group, if (entry->bitmap) { ret = btrfs_alloc_from_bitmap(block_group, cluster, entry, bytes, - cluster->window_start); + cluster->window_start, + max_extent_size); if (ret == 0) { node = rb_next(&entry->offset_index); if (!node) diff --git a/fs/btrfs/free-space-cache.h b/fs/btrfs/free-space-cache.h index c74904167476..e737f92cf6d0 100644 --- a/fs/btrfs/free-space-cache.h +++ b/fs/btrfs/free-space-cache.h @@ -94,7 +94,8 @@ void __btrfs_remove_free_space_cache(struct btrfs_free_space_ctl *ctl); void btrfs_remove_free_space_cache(struct btrfs_block_group_cache *block_group); u64 btrfs_find_space_for_alloc(struct btrfs_block_group_cache *block_group, - u64 offset, u64 bytes, u64 empty_size); + u64 offset, u64 bytes, u64 empty_size, + u64 *max_extent_size); u64 btrfs_find_ino_for_alloc(struct btrfs_root *fs_root); void btrfs_dump_free_space(struct btrfs_block_group_cache *block_group, u64 bytes); @@ -105,7 +106,7 @@ int btrfs_find_space_cluster(struct btrfs_root *root, void btrfs_init_free_cluster(struct btrfs_free_cluster *cluster); u64 btrfs_alloc_from_cluster(struct btrfs_block_group_cache *block_group, struct btrfs_free_cluster *cluster, u64 bytes, - u64 min_start); + u64 min_start, u64 *max_extent_size); int btrfs_return_cluster_to_free_space( struct btrfs_block_group_cache *block_group, struct btrfs_free_cluster *cluster); From 573aecafca1cf7a974231b759197a1aebcf39c2a Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Fri, 30 Aug 2013 14:38:49 -0400 Subject: [PATCH 329/350] Btrfs: actually limit the size of delalloc range So forever we have had this thing to limit the amount of delalloc pages we'll setup to be written out to 128mb. This is because we have to lock all the pages in this range, so anything above this gets a bit unweildly, and also without a limit we'll happily allocate gigantic chunks of disk space. Turns out our check for this wasn't quite right, we wouldn't actually limit the chunk we wanted to write out, we'd just stop looking for more space after we went over the limit. So if you do a giant 20gb dd on my box with lots of ram I could get 2gig extents. This is fine normally, except when you go to relocate these extents and we can't find enough space to relocate these moster extents, since we have to be able to allocate exactly the same sized extent to move it around. So fix this by actually enforcing the limit. With this patch I'm no longer seeing giant 1.5gb extents. Thanks, Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/extent_io.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 09582b81640c..c09a40db53db 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -1481,10 +1481,12 @@ static noinline u64 find_delalloc_range(struct extent_io_tree *tree, *end = state->end; cur_start = state->end + 1; node = rb_next(node); - if (!node) - break; total_bytes += state->end - state->start + 1; - if (total_bytes >= max_bytes) + if (total_bytes >= max_bytes) { + *end = *start + max_bytes - 1; + break; + } + if (!node) break; } out: From de2b530bfb683fd75c31ab65ec42949f5f7a5b58 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Wed, 11 Sep 2013 09:36:30 -0400 Subject: [PATCH 330/350] Btrfs: actually log directory we are fsync()'ing If you just create a directory and then fsync that directory and then pull the power plug you will come back up and the directory will not be there. That is because we won't actually create directories if we've logged files inside of them since they will be created on replay, but in this check we will set our logged_trans of our current directory if it happens to be a directory, making us think it doesn't need to be logged. Fix the logic to only do this to parent directories. Thanks, Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/tree-log.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index 0d9613c3f5e5..aaa2e2b67478 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -3805,6 +3805,7 @@ static noinline int check_parent_dirs_for_sync(struct btrfs_trans_handle *trans, int ret = 0; struct btrfs_root *root; struct dentry *old_parent = NULL; + struct inode *orig_inode = inode; /* * for regular files, if its inode is already on disk, we don't @@ -3824,7 +3825,14 @@ static noinline int check_parent_dirs_for_sync(struct btrfs_trans_handle *trans, } while (1) { - BTRFS_I(inode)->logged_trans = trans->transid; + /* + * If we are logging a directory then we start with our inode, + * not our parents inode, so we need to skipp setting the + * logged_trans so that further down in the log code we don't + * think this inode has already been logged. + */ + if (inode != orig_inode) + BTRFS_I(inode)->logged_trans = trans->transid; smp_mb(); if (BTRFS_I(inode)->last_unlink_trans > last_committed) { From a5874ce6ce4a3e4fc3db254ccf6d59d8501a56d8 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Wed, 11 Sep 2013 09:55:42 -0400 Subject: [PATCH 331/350] Btrfs: check roots last log commit when checking if an inode has been logged Liu introduced a local copy of the last log commit for an inode to make sure we actually log an inode even if a log commit has already taken place. In order to make sure we didn't relog the same inode multiple times he set this local copy to the current trans when we log the inode, because usually we log the inode and then sync the log. The exception to this is during rename, we will relog an inode if the name changed and it is already in the log. The problem with this is then we go to sync the inode, and our check to see if the inode has already been logged is tripped and we don't sync the log. To fix this we need to _also_ check against the roots last log commit, because it could be less than what is in our local copy of the log commit. This fixes a bug where we rename a file into a directory and then fsync the directory and then on remount the directory is no longer there. Thanks, Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/btrfs_inode.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h index d0ae226926ee..71f074e1870b 100644 --- a/fs/btrfs/btrfs_inode.h +++ b/fs/btrfs/btrfs_inode.h @@ -213,7 +213,10 @@ static inline bool btrfs_is_free_space_inode(struct inode *inode) static inline int btrfs_inode_in_log(struct inode *inode, u64 generation) { if (BTRFS_I(inode)->logged_trans == generation && - BTRFS_I(inode)->last_sub_trans <= BTRFS_I(inode)->last_log_commit) + BTRFS_I(inode)->last_sub_trans <= + BTRFS_I(inode)->last_log_commit && + BTRFS_I(inode)->last_sub_trans <= + BTRFS_I(inode)->root->last_log_commit) return 1; return 0; } From dd8e721773fdab5ccc7fde44ec57e30b563243b2 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Wed, 11 Sep 2013 11:57:23 -0400 Subject: [PATCH 332/350] Btrfs: replay dir_index items before other items A user reported a bug where his log would not replay because he was getting -EEXIST back. This was because he had a file moved into a directory that was logged. What happens is the file had a lower inode number, and so it is processed first when replaying the log, and so we add the inode ref in for the directory it was moved to. But then we process the directories DIR_INDEX item and try to add the inode ref for that inode and it fails because we already added it when we replayed the inode. To solve this problem we need to just process any DIR_INDEX items we have in the log first so this all is taken care of, and then we can replay the rest of the items. With this patch my reproducer can remount the file system properly instead of erroring out. Thanks, Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/tree-log.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index aaa2e2b67478..c91309dea8da 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -93,7 +93,8 @@ */ #define LOG_WALK_PIN_ONLY 0 #define LOG_WALK_REPLAY_INODES 1 -#define LOG_WALK_REPLAY_ALL 2 +#define LOG_WALK_REPLAY_DIR_INDEX 2 +#define LOG_WALK_REPLAY_ALL 3 static int btrfs_log_inode(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct inode *inode, @@ -2027,6 +2028,15 @@ static int replay_one_buffer(struct btrfs_root *log, struct extent_buffer *eb, if (ret) break; } + + if (key.type == BTRFS_DIR_INDEX_KEY && + wc->stage == LOG_WALK_REPLAY_DIR_INDEX) { + ret = replay_one_dir_item(wc->trans, root, path, + eb, i, &key); + if (ret) + break; + } + if (wc->stage < LOG_WALK_REPLAY_ALL) continue; @@ -2048,8 +2058,7 @@ static int replay_one_buffer(struct btrfs_root *log, struct extent_buffer *eb, eb, i, &key); if (ret) break; - } else if (key.type == BTRFS_DIR_ITEM_KEY || - key.type == BTRFS_DIR_INDEX_KEY) { + } else if (key.type == BTRFS_DIR_ITEM_KEY) { ret = replay_one_dir_item(wc->trans, root, path, eb, i, &key); if (ret) From d555438b6e1dad139d26ab807f0af68a1fa47a86 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Wed, 11 Sep 2013 14:17:00 -0400 Subject: [PATCH 333/350] Btrfs: drop dir i_size when adding new names on replay So if we have dir_index items in the log that means we also have the inode item as well, which means that the inode's i_size is correct. However when we process dir_index'es we call btrfs_add_link() which will increase the directory's i_size for the new entry. To fix this we need to just set the dir items i_size to 0, and then as we find dir_index items we adjust the i_size. btrfs_add_link() will do it for new entries, and if the entry already exists we can just add the name_len to the i_size ourselves. Thanks, Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/tree-log.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index c91309dea8da..79f057c0619a 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -394,6 +394,7 @@ static noinline int overwrite_item(struct btrfs_trans_handle *trans, if (inode_item) { struct btrfs_inode_item *item; u64 nbytes; + u32 mode; item = btrfs_item_ptr(path->nodes[0], path->slots[0], struct btrfs_inode_item); @@ -401,9 +402,19 @@ static noinline int overwrite_item(struct btrfs_trans_handle *trans, item = btrfs_item_ptr(eb, slot, struct btrfs_inode_item); btrfs_set_inode_nbytes(eb, item, nbytes); + + /* + * If this is a directory we need to reset the i_size to + * 0 so that we can set it up properly when replaying + * the rest of the items in this log. + */ + mode = btrfs_inode_mode(eb, item); + if (S_ISDIR(mode)) + btrfs_set_inode_size(eb, item, 0); } } else if (inode_item) { struct btrfs_inode_item *item; + u32 mode; /* * New inode, set nbytes to 0 so that the nbytes comes out @@ -411,6 +422,15 @@ static noinline int overwrite_item(struct btrfs_trans_handle *trans, */ item = btrfs_item_ptr(eb, slot, struct btrfs_inode_item); btrfs_set_inode_nbytes(eb, item, 0); + + /* + * If this is a directory we need to reset the i_size to 0 so + * that we can set it up properly when replaying the rest of + * the items in this log. + */ + mode = btrfs_inode_mode(eb, item); + if (S_ISDIR(mode)) + btrfs_set_inode_size(eb, item, 0); } insert: btrfs_release_path(path); @@ -1497,6 +1517,7 @@ static noinline int insert_one_name(struct btrfs_trans_handle *trans, iput(inode); return -EIO; } + ret = btrfs_add_link(trans, dir, inode, name, name_len, 1, index); /* FIXME, put inode into FIXUP list */ @@ -1535,6 +1556,7 @@ static noinline int replay_one_name(struct btrfs_trans_handle *trans, u8 log_type; int exists; int ret = 0; + bool update_size = (key->type == BTRFS_DIR_INDEX_KEY); dir = read_one_inode(root, key->objectid); if (!dir) @@ -1605,6 +1627,10 @@ static noinline int replay_one_name(struct btrfs_trans_handle *trans, goto insert; out: btrfs_release_path(path); + if (!ret && update_size) { + btrfs_i_size_write(dir, dir->i_size + name_len * 2); + ret = btrfs_update_inode(trans, root, dir); + } kfree(name); iput(dir); return ret; @@ -1615,6 +1641,7 @@ insert: name, name_len, log_type, &log_key); if (ret && ret != -ENOENT) goto out; + update_size = false; ret = 0; goto out; } From 652f25a2921eb32a3e6f88aed3c59b494c1287c4 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Thu, 12 Sep 2013 16:58:28 -0400 Subject: [PATCH 334/350] Btrfs: improve replacing nocow extents Various people have hit a deadlock when running btrfs/011. This is because when replacing nocow extents we will take the i_mutex to make sure nobody messes with the file while we are replacing the extent. The problem is we are already holding a transaction open, which is a locking inversion, so instead we need to save these inodes we find and then process them outside of the transaction. Further we can't just lock the inode and assume we are good to go. We need to lock the extent range and then read back the extent cache for the inode to make sure the extent really still points at the physical block we want. If it doesn't we don't have to copy it. Thanks, Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/scrub.c | 112 +++++++++++++++++++++++++++++++++++++++++------ 1 file changed, 98 insertions(+), 14 deletions(-) diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c index 0afcd452fcb3..a18e0e23f6a6 100644 --- a/fs/btrfs/scrub.c +++ b/fs/btrfs/scrub.c @@ -158,12 +158,20 @@ struct scrub_fixup_nodatasum { int mirror_num; }; +struct scrub_nocow_inode { + u64 inum; + u64 offset; + u64 root; + struct list_head list; +}; + struct scrub_copy_nocow_ctx { struct scrub_ctx *sctx; u64 logical; u64 len; int mirror_num; u64 physical_for_dev_replace; + struct list_head inodes; struct btrfs_work work; }; @@ -245,7 +253,7 @@ static void scrub_wr_bio_end_io_worker(struct btrfs_work *work); static int write_page_nocow(struct scrub_ctx *sctx, u64 physical_for_dev_replace, struct page *page); static int copy_nocow_pages_for_inode(u64 inum, u64 offset, u64 root, - void *ctx); + struct scrub_copy_nocow_ctx *ctx); static int copy_nocow_pages(struct scrub_ctx *sctx, u64 logical, u64 len, int mirror_num, u64 physical_for_dev_replace); static void copy_nocow_pages_worker(struct btrfs_work *work); @@ -3126,12 +3134,30 @@ static int copy_nocow_pages(struct scrub_ctx *sctx, u64 logical, u64 len, nocow_ctx->mirror_num = mirror_num; nocow_ctx->physical_for_dev_replace = physical_for_dev_replace; nocow_ctx->work.func = copy_nocow_pages_worker; + INIT_LIST_HEAD(&nocow_ctx->inodes); btrfs_queue_worker(&fs_info->scrub_nocow_workers, &nocow_ctx->work); return 0; } +static int record_inode_for_nocow(u64 inum, u64 offset, u64 root, void *ctx) +{ + struct scrub_copy_nocow_ctx *nocow_ctx = ctx; + struct scrub_nocow_inode *nocow_inode; + + nocow_inode = kzalloc(sizeof(*nocow_inode), GFP_NOFS); + if (!nocow_inode) + return -ENOMEM; + nocow_inode->inum = inum; + nocow_inode->offset = offset; + nocow_inode->root = root; + list_add_tail(&nocow_inode->list, &nocow_ctx->inodes); + return 0; +} + +#define COPY_COMPLETE 1 + static void copy_nocow_pages_worker(struct btrfs_work *work) { struct scrub_copy_nocow_ctx *nocow_ctx = @@ -3167,8 +3193,7 @@ static void copy_nocow_pages_worker(struct btrfs_work *work) } ret = iterate_inodes_from_logical(logical, fs_info, path, - copy_nocow_pages_for_inode, - nocow_ctx); + record_inode_for_nocow, nocow_ctx); if (ret != 0 && ret != -ENOENT) { pr_warn("iterate_inodes_from_logical() failed: log %llu, phys %llu, len %llu, mir %u, ret %d\n", logical, physical_for_dev_replace, len, mirror_num, @@ -3177,7 +3202,33 @@ static void copy_nocow_pages_worker(struct btrfs_work *work) goto out; } + btrfs_end_transaction(trans, root); + trans = NULL; + while (!list_empty(&nocow_ctx->inodes)) { + struct scrub_nocow_inode *entry; + entry = list_first_entry(&nocow_ctx->inodes, + struct scrub_nocow_inode, + list); + list_del_init(&entry->list); + ret = copy_nocow_pages_for_inode(entry->inum, entry->offset, + entry->root, nocow_ctx); + kfree(entry); + if (ret == COPY_COMPLETE) { + ret = 0; + break; + } else if (ret) { + break; + } + } out: + while (!list_empty(&nocow_ctx->inodes)) { + struct scrub_nocow_inode *entry; + entry = list_first_entry(&nocow_ctx->inodes, + struct scrub_nocow_inode, + list); + list_del_init(&entry->list); + kfree(entry); + } if (trans && !IS_ERR(trans)) btrfs_end_transaction(trans, root); if (not_written) @@ -3190,20 +3241,25 @@ out: scrub_pending_trans_workers_dec(sctx); } -static int copy_nocow_pages_for_inode(u64 inum, u64 offset, u64 root, void *ctx) +static int copy_nocow_pages_for_inode(u64 inum, u64 offset, u64 root, + struct scrub_copy_nocow_ctx *nocow_ctx) { - struct scrub_copy_nocow_ctx *nocow_ctx = ctx; struct btrfs_fs_info *fs_info = nocow_ctx->sctx->dev_root->fs_info; struct btrfs_key key; struct inode *inode; struct page *page; struct btrfs_root *local_root; + struct btrfs_ordered_extent *ordered; + struct extent_map *em; + struct extent_state *cached_state = NULL; + struct extent_io_tree *io_tree; u64 physical_for_dev_replace; - u64 len; + u64 len = nocow_ctx->len; + u64 lockstart = offset, lockend = offset + len - 1; unsigned long index; int srcu_index; - int ret; - int err; + int ret = 0; + int err = 0; key.objectid = root; key.type = BTRFS_ROOT_ITEM_KEY; @@ -3229,9 +3285,33 @@ static int copy_nocow_pages_for_inode(u64 inum, u64 offset, u64 root, void *ctx) mutex_lock(&inode->i_mutex); inode_dio_wait(inode); - ret = 0; physical_for_dev_replace = nocow_ctx->physical_for_dev_replace; - len = nocow_ctx->len; + io_tree = &BTRFS_I(inode)->io_tree; + + lock_extent_bits(io_tree, lockstart, lockend, 0, &cached_state); + ordered = btrfs_lookup_ordered_range(inode, lockstart, len); + if (ordered) { + btrfs_put_ordered_extent(ordered); + goto out_unlock; + } + + em = btrfs_get_extent(inode, NULL, 0, lockstart, len, 0); + if (IS_ERR(em)) { + ret = PTR_ERR(em); + goto out_unlock; + } + + /* + * This extent does not actually cover the logical extent anymore, + * move on to the next inode. + */ + if (em->block_start > nocow_ctx->logical || + em->block_start + em->block_len < nocow_ctx->logical + len) { + free_extent_map(em); + goto out_unlock; + } + free_extent_map(em); + while (len >= PAGE_CACHE_SIZE) { index = offset >> PAGE_CACHE_SHIFT; again: @@ -3247,10 +3327,9 @@ again: goto next_page; } else { ClearPageError(page); - err = extent_read_full_page(&BTRFS_I(inode)-> - io_tree, - page, btrfs_get_extent, - nocow_ctx->mirror_num); + err = extent_read_full_page_nolock(io_tree, page, + btrfs_get_extent, + nocow_ctx->mirror_num); if (err) { ret = err; goto next_page; @@ -3264,6 +3343,7 @@ again: * page in the page cache. */ if (page->mapping != inode->i_mapping) { + unlock_page(page); page_cache_release(page); goto again; } @@ -3287,6 +3367,10 @@ next_page: physical_for_dev_replace += PAGE_CACHE_SIZE; len -= PAGE_CACHE_SIZE; } + ret = COPY_COMPLETE; +out_unlock: + unlock_extent_cached(io_tree, lockstart, lockend, &cached_state, + GFP_NOFS); out: mutex_unlock(&inode->i_mutex); iput(inode); From 14575aef4212d2cc02274bf1f5456f3e644f03f8 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Tue, 17 Sep 2013 10:48:00 -0400 Subject: [PATCH 335/350] Revert "Btrfs: rework the overcommit logic to be based on the total size" This reverts commit 70afa3998c9baed4186df38988246de1abdab56d. It is causing performance issues and wasn't actually correct. There were problems with the way we flushed delalloc and that was the real cause of the early enospc. Thanks, Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/extent-tree.c | 15 +++------------ 1 file changed, 3 insertions(+), 12 deletions(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 2f03181b777f..07f7f6942128 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3925,7 +3925,6 @@ static int can_overcommit(struct btrfs_root *root, u64 space_size; u64 avail; u64 used; - u64 to_add; used = space_info->bytes_used + space_info->bytes_reserved + space_info->bytes_pinned + space_info->bytes_readonly; @@ -3959,25 +3958,17 @@ static int can_overcommit(struct btrfs_root *root, BTRFS_BLOCK_GROUP_RAID10)) avail >>= 1; - to_add = space_info->total_bytes; - /* * If we aren't flushing all things, let us overcommit up to * 1/2th of the space. If we can flush, don't let us overcommit * too much, let it overcommit up to 1/8 of the space. */ if (flush == BTRFS_RESERVE_FLUSH_ALL) - to_add >>= 3; + avail >>= 3; else - to_add >>= 1; + avail >>= 1; - /* - * Limit the overcommit to the amount of free space we could possibly - * allocate for chunks. - */ - to_add = min(avail, to_add); - - if (used + bytes < space_info->total_bytes + to_add) + if (used + bytes < space_info->total_bytes + avail) return 1; return 0; } From c4fbb4300abd6f662c7d5049d01f868af9874069 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Tue, 17 Sep 2013 10:50:06 -0400 Subject: [PATCH 336/350] Btrfs: fix worst case calculator for space usage Forever ago I made the worst case calculator say that we could potentially split into 3 blocks for every level on the way down, which isn't right. If we split we're only going to get two new blocks, the one we originally cow'ed and the new one we're going to split. Thanks, Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/ctree.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 2491ba076b42..36490b92ee33 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -3135,7 +3135,7 @@ static inline u64 btrfs_calc_trans_metadata_size(struct btrfs_root *root, unsigned num_items) { return (root->leafsize + root->nodesize * (BTRFS_MAX_LEVEL - 1)) * - 3 * num_items; + 2 * num_items; } /* From f0de181c9b48a397c5a2fbe63dcdd2a26a872695 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Tue, 17 Sep 2013 10:55:51 -0400 Subject: [PATCH 337/350] Btrfs: kill delay_iput arg to the wait_ordered functions This is a left over of how we used to wait for ordered extents, which was to grab the inode and then run filemap flush on it. However if we have an ordered extent then we already are holding a ref on the inode, and we just use btrfs_start_ordered_extent anyway, so there is no reason to have an extra ref on the inode to start work on the ordered extent. Thanks, Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/dev-replace.c | 4 ++-- fs/btrfs/extent-tree.c | 6 +++--- fs/btrfs/ioctl.c | 2 +- fs/btrfs/ordered-data.c | 24 +++--------------------- fs/btrfs/ordered-data.h | 5 ++--- fs/btrfs/relocation.c | 2 +- fs/btrfs/super.c | 2 +- fs/btrfs/transaction.c | 2 +- 8 files changed, 14 insertions(+), 33 deletions(-) diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c index af800ef677a0..5d844438b2d4 100644 --- a/fs/btrfs/dev-replace.c +++ b/fs/btrfs/dev-replace.c @@ -400,7 +400,7 @@ int btrfs_dev_replace_start(struct btrfs_root *root, args->result = BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_ERROR; btrfs_dev_replace_unlock(dev_replace); - btrfs_wait_all_ordered_extents(root->fs_info, 0); + btrfs_wait_all_ordered_extents(root->fs_info); /* force writing the updated state information to disk */ trans = btrfs_start_transaction(root, 0); @@ -475,7 +475,7 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info, mutex_unlock(&dev_replace->lock_finishing_cancel_unmount); return ret; } - btrfs_wait_all_ordered_extents(root->fs_info, 0); + btrfs_wait_all_ordered_extents(root->fs_info); trans = btrfs_start_transaction(root, 0); if (IS_ERR(trans)) { diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 07f7f6942128..88c6db611de3 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3991,7 +3991,7 @@ static void btrfs_writeback_inodes_sb_nr(struct btrfs_root *root, */ btrfs_start_all_delalloc_inodes(root->fs_info, 0); if (!current->journal_info) - btrfs_wait_all_ordered_extents(root->fs_info, 0); + btrfs_wait_all_ordered_extents(root->fs_info); } } @@ -4021,7 +4021,7 @@ static void shrink_delalloc(struct btrfs_root *root, u64 to_reclaim, u64 orig, if (delalloc_bytes == 0) { if (trans) return; - btrfs_wait_all_ordered_extents(root->fs_info, 0); + btrfs_wait_all_ordered_extents(root->fs_info); return; } @@ -4049,7 +4049,7 @@ static void shrink_delalloc(struct btrfs_root *root, u64 to_reclaim, u64 orig, loops++; if (wait_ordered && !trans) { - btrfs_wait_all_ordered_extents(root->fs_info, 0); + btrfs_wait_all_ordered_extents(root->fs_info); } else { time_left = schedule_timeout_killable(1); if (time_left) diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 1a5b9462dd9a..fd6557e7118a 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -574,7 +574,7 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir, if (ret) return ret; - btrfs_wait_ordered_extents(root, 0); + btrfs_wait_ordered_extents(root); pending_snapshot = kzalloc(sizeof(*pending_snapshot), GFP_NOFS); if (!pending_snapshot) diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c index 966b413a33b8..c702cb62f78a 100644 --- a/fs/btrfs/ordered-data.c +++ b/fs/btrfs/ordered-data.c @@ -563,11 +563,10 @@ static void btrfs_run_ordered_extent_work(struct btrfs_work *work) * wait for all the ordered extents in a root. This is done when balancing * space between drives. */ -void btrfs_wait_ordered_extents(struct btrfs_root *root, int delay_iput) +void btrfs_wait_ordered_extents(struct btrfs_root *root) { struct list_head splice, works; struct btrfs_ordered_extent *ordered, *next; - struct inode *inode; INIT_LIST_HEAD(&splice); INIT_LIST_HEAD(&works); @@ -580,15 +579,6 @@ void btrfs_wait_ordered_extents(struct btrfs_root *root, int delay_iput) root_extent_list); list_move_tail(&ordered->root_extent_list, &root->ordered_extents); - /* - * the inode may be getting freed (in sys_unlink path). - */ - inode = igrab(ordered->inode); - if (!inode) { - cond_resched_lock(&root->ordered_extent_lock); - continue; - } - atomic_inc(&ordered->refs); spin_unlock(&root->ordered_extent_lock); @@ -605,21 +595,13 @@ void btrfs_wait_ordered_extents(struct btrfs_root *root, int delay_iput) list_for_each_entry_safe(ordered, next, &works, work_list) { list_del_init(&ordered->work_list); wait_for_completion(&ordered->completion); - - inode = ordered->inode; btrfs_put_ordered_extent(ordered); - if (delay_iput) - btrfs_add_delayed_iput(inode); - else - iput(inode); - cond_resched(); } mutex_unlock(&root->fs_info->ordered_operations_mutex); } -void btrfs_wait_all_ordered_extents(struct btrfs_fs_info *fs_info, - int delay_iput) +void btrfs_wait_all_ordered_extents(struct btrfs_fs_info *fs_info) { struct btrfs_root *root; struct list_head splice; @@ -637,7 +619,7 @@ void btrfs_wait_all_ordered_extents(struct btrfs_fs_info *fs_info, &fs_info->ordered_roots); spin_unlock(&fs_info->ordered_root_lock); - btrfs_wait_ordered_extents(root, delay_iput); + btrfs_wait_ordered_extents(root); btrfs_put_fs_root(root); spin_lock(&fs_info->ordered_root_lock); diff --git a/fs/btrfs/ordered-data.h b/fs/btrfs/ordered-data.h index d9a5aa097b4f..0c0b35612d7a 100644 --- a/fs/btrfs/ordered-data.h +++ b/fs/btrfs/ordered-data.h @@ -195,9 +195,8 @@ int btrfs_run_ordered_operations(struct btrfs_trans_handle *trans, void btrfs_add_ordered_operation(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct inode *inode); -void btrfs_wait_ordered_extents(struct btrfs_root *root, int delay_iput); -void btrfs_wait_all_ordered_extents(struct btrfs_fs_info *fs_info, - int delay_iput); +void btrfs_wait_ordered_extents(struct btrfs_root *root); +void btrfs_wait_all_ordered_extents(struct btrfs_fs_info *fs_info); void btrfs_get_logged_extents(struct btrfs_root *log, struct inode *inode); void btrfs_wait_logged_extents(struct btrfs_root *log, u64 transid); void btrfs_free_logged_extents(struct btrfs_root *log, u64 transid); diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index 09b2b9a0a491..a5a26320503f 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -4246,7 +4246,7 @@ int btrfs_relocate_block_group(struct btrfs_root *extent_root, u64 group_start) err = ret; goto out; } - btrfs_wait_all_ordered_extents(fs_info, 0); + btrfs_wait_all_ordered_extents(fs_info); while (1) { mutex_lock(&fs_info->cleaner_mutex); diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 58cb83f23b1a..b341da3ee3ee 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -921,7 +921,7 @@ int btrfs_sync_fs(struct super_block *sb, int wait) return 0; } - btrfs_wait_all_ordered_extents(fs_info, 1); + btrfs_wait_all_ordered_extents(fs_info); trans = btrfs_attach_transaction_barrier(root); if (IS_ERR(trans)) { diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index cac4a3f76323..e7a95356df83 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -1603,7 +1603,7 @@ static inline int btrfs_start_delalloc_flush(struct btrfs_fs_info *fs_info) static inline void btrfs_wait_delalloc_flush(struct btrfs_fs_info *fs_info) { if (btrfs_test_opt(fs_info->tree_root, FLUSHONCOMMIT)) - btrfs_wait_all_ordered_extents(fs_info, 1); + btrfs_wait_all_ordered_extents(fs_info); } int btrfs_commit_transaction(struct btrfs_trans_handle *trans, From 363e4d354e51558629d13c5ae456f98c4b209576 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Tue, 17 Sep 2013 11:02:25 -0400 Subject: [PATCH 338/350] Btrfs: remove space_info->reservation_progress This isn't used for anything anymore, just remove it. Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/ctree.h | 9 --------- fs/btrfs/extent-tree.c | 3 --- 2 files changed, 12 deletions(-) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 36490b92ee33..0506f40ede83 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -1118,15 +1118,6 @@ struct btrfs_space_info { */ struct percpu_counter total_bytes_pinned; - /* - * we bump reservation progress every time we decrement - * bytes_reserved. This way people waiting for reservations - * know something good has happened and they can check - * for progress. The number here isn't to be trusted, it - * just shows reclaim activity - */ - unsigned long reservation_progress; - unsigned int full:1; /* indicates that we cannot allocate any more chunks for this space */ unsigned int chunk_alloc:1; /* set if we are allocating a chunk */ diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 88c6db611de3..d58bef130a41 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -4456,7 +4456,6 @@ static void block_rsv_release_bytes(struct btrfs_fs_info *fs_info, space_info->bytes_may_use -= num_bytes; trace_btrfs_space_reservation(fs_info, "space_info", space_info->flags, num_bytes, 0); - space_info->reservation_progress++; spin_unlock(&space_info->lock); } } @@ -4657,7 +4656,6 @@ static void update_global_block_rsv(struct btrfs_fs_info *fs_info) sinfo->bytes_may_use -= num_bytes; trace_btrfs_space_reservation(fs_info, "space_info", sinfo->flags, num_bytes, 0); - sinfo->reservation_progress++; block_rsv->reserved = block_rsv->size; block_rsv->full = 1; } @@ -5437,7 +5435,6 @@ static int btrfs_update_reserved_bytes(struct btrfs_block_group_cache *cache, space_info->bytes_readonly += num_bytes; cache->reserved -= num_bytes; space_info->bytes_reserved -= num_bytes; - space_info->reservation_progress++; } spin_unlock(&cache->lock); spin_unlock(&space_info->lock); From f4ab9ea706f2c6e4aad544145353b81afe7500e1 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Tue, 17 Sep 2013 11:25:44 -0400 Subject: [PATCH 339/350] Btrfs: iput inode on allocation failure We don't do the iput when we fail to allocate our delayed delalloc work in __start_delalloc_inodes, fix this. Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/inode.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index abed81d93687..931036c6eb90 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -8216,6 +8216,10 @@ static int __start_delalloc_inodes(struct btrfs_root *root, int delay_iput) work = btrfs_alloc_delalloc_work(inode, 0, delay_iput); if (unlikely(!work)) { + if (delay_iput) + btrfs_add_delayed_iput(inode); + else + iput(inode); ret = -ENOMEM; goto out; } From a724b4369097897db45d61108c0e976912e586c7 Mon Sep 17 00:00:00 2001 From: Stefan Behrens Date: Wed, 11 Sep 2013 09:59:22 +0200 Subject: [PATCH 340/350] Btrfs: add the missing mutex unlock in write_all_supers() The BUG() was replaced by btrfs_error() and return -EIO with the patch "get rid of one BUG() in write_all_supers()", but the missing mutex_unlock() was overlooked. The 0-DAY kernel build service from Intel reported the missing unlock which was found by the coccinelle tool: fs/btrfs/disk-io.c:3422:2-8: preceding lock on line 3374 Signed-off-by: Stefan Behrens Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/disk-io.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 72cf08b2be85..4ae17ed13b32 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -3416,6 +3416,7 @@ static int write_all_supers(struct btrfs_root *root, int max_mirrors) if (total_errors > max_errors) { printk(KERN_ERR "btrfs: %d errors while writing supers\n", total_errors); + mutex_unlock(&root->fs_info->fs_devices->device_list_mutex); /* FUA is masked off if unsupported and can't be the reason */ btrfs_error(root->fs_info, -EIO, From a0634be562c27ddee7c94bce4f765f8071244e07 Mon Sep 17 00:00:00 2001 From: Filipe David Borba Manana Date: Wed, 11 Sep 2013 20:36:44 +0100 Subject: [PATCH 341/350] Btrfs: don't leak transaction in btrfs_sync_file() In btrfs_sync_file(), if the call to btrfs_log_dentry_safe() returns a negative error (for e.g. -ENOMEM via btrfs_log_inode()), we would return without ending/freeing the transaction. Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/file.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 5ba87b0d2ef8..d12107e90987 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1859,8 +1859,8 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) ret = btrfs_log_dentry_safe(trans, root, dentry); if (ret < 0) { - mutex_unlock(&inode->i_mutex); - goto out; + /* Fallthrough and commit/free transaction. */ + ret = 1; } /* we've logged all the items and now have a consistent From 1cecf579d161527f610ef0da852dd6122e434a49 Mon Sep 17 00:00:00 2001 From: chandan Date: Fri, 13 Sep 2013 19:34:10 +0530 Subject: [PATCH 342/350] Btrfs: btrfs_ioctl_default_subvol: Revert back to toplevel subvolume when arg is 0 This patch makes it possible to set BTRFS_FS_TREE_OBJECTID as the default subvolume by passing a subvolume id of 0. Signed-off-by: chandan Reviewed-by: David Sterba Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/ioctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index fd6557e7118a..fba259ab9994 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -3310,7 +3310,7 @@ static long btrfs_ioctl_default_subvol(struct file *file, void __user *argp) } if (!objectid) - objectid = root->root_key.objectid; + objectid = BTRFS_FS_TREE_OBJECTID; location.objectid = objectid; location.type = BTRFS_ROOT_ITEM_KEY; From 6ef3de9c9252b186720122d3ae7122a81d49f8ee Mon Sep 17 00:00:00 2001 From: David Sterba Date: Fri, 13 Sep 2013 17:41:20 +0200 Subject: [PATCH 343/350] btrfs: refuse to remount read-write after abort It's still possible to flip the filesystem into RW mode after it's remounted RO due to an abort. There are lots of places that check for the superblock error bit and will not write data, but we should not let the filesystem appear read-write. Signed-off-by: David Sterba Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/super.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index b341da3ee3ee..6ab0df59b6c4 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -1340,6 +1340,12 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data) if (ret) goto restore; } else { + if (test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state)) { + btrfs_err(fs_info, + "Remounting read-write after error is not allowed\n"); + ret = -EINVAL; + goto restore; + } if (fs_info->fs_devices->rw_devices == 0) { ret = -EACCES; goto restore; From 5138cccf3470fcaa8a42df79a17f20c72f866158 Mon Sep 17 00:00:00 2001 From: Frank Holton Date: Fri, 13 Sep 2013 11:46:50 -0400 Subject: [PATCH 344/350] btrfs: Add btrfs: prefix to kernel log output The kernel log entries for device label %s and device fsid %pU are missing the btrfs: prefix. Add those here. Signed-off-by: Frank Holton Reviewed-by: David Sterba Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/volumes.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index a0577352eb6e..043114749516 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -912,9 +912,9 @@ int btrfs_scan_one_device(const char *path, fmode_t flags, void *holder, if (disk_super->label[0]) { if (disk_super->label[BTRFS_LABEL_SIZE - 1]) disk_super->label[BTRFS_LABEL_SIZE - 1] = '\0'; - printk(KERN_INFO "device label %s ", disk_super->label); + printk(KERN_INFO "btrfs: device label %s ", disk_super->label); } else { - printk(KERN_INFO "device fsid %pU ", disk_super->fsid); + printk(KERN_INFO "btrfs: device fsid %pU ", disk_super->fsid); } printk(KERN_CONT "devid %llu transid %llu %s\n", devid, transid, path); From 93fd63c2f001ca6797c6b15b696a484b165b4800 Mon Sep 17 00:00:00 2001 From: Guangyu Sun Date: Mon, 16 Sep 2013 10:42:03 -0700 Subject: [PATCH 345/350] Btrfs: dir_inode_operations should use btrfs_update_time also Commit 2bc5565286121d2a77ccd728eb3484dff2035b58 (Btrfs: don't update atime on RO subvolumes) ensures that the access time of an inode is not updated when the inode lives in a read-only subvolume. However, if a directory on a read-only subvolume is accessed, the atime is updated. This results in a write operation to a read-only subvolume. I believe that access times should never be updated on read-only subvolumes. To reproduce: # mkfs.btrfs -f /dev/dm-3 (...) # mount /dev/dm-3 /mnt # btrfs subvol create /mnt/sub Create subvolume '/mnt/sub' # mkdir /mnt/sub/dir # echo "abc" > /mnt/sub/dir/file # btrfs subvol snapshot -r /mnt/sub /mnt/rosnap Create a readonly snapshot of '/mnt/sub' in '/mnt/rosnap' # stat /mnt/rosnap/dir File: `/mnt/rosnap/dir' Size: 8 Blocks: 0 IO Block: 4096 directory Device: 16h/22d Inode: 257 Links: 1 Access: (0755/drwxr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2013-09-11 07:21:49.389157126 -0400 Modify: 2013-09-11 07:22:02.330156079 -0400 Change: 2013-09-11 07:22:02.330156079 -0400 # ls /mnt/rosnap/dir file # stat /mnt/rosnap/dir File: `/mnt/rosnap/dir' Size: 8 Blocks: 0 IO Block: 4096 directory Device: 16h/22d Inode: 257 Links: 1 Access: (0755/drwxr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2013-09-11 07:22:56.797151670 -0400 Modify: 2013-09-11 07:22:02.330156079 -0400 Change: 2013-09-11 07:22:02.330156079 -0400 Reported-by: Koen De Wit Signed-off-by: Guangyu Sun Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/inode.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 931036c6eb90..8af6c03953ad 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -8617,11 +8617,13 @@ static const struct inode_operations btrfs_dir_inode_operations = { .removexattr = btrfs_removexattr, .permission = btrfs_permission, .get_acl = btrfs_get_acl, + .update_time = btrfs_update_time, }; static const struct inode_operations btrfs_dir_ro_inode_operations = { .lookup = btrfs_lookup, .permission = btrfs_permission, .get_acl = btrfs_get_acl, + .update_time = btrfs_update_time, }; static const struct file_operations btrfs_dir_file_operations = { From cbf8b8ca3ec799c11a4cbb29d812d84adf2990b0 Mon Sep 17 00:00:00 2001 From: Mark Fasheh Date: Tue, 17 Sep 2013 15:43:54 -0700 Subject: [PATCH 346/350] btrfs: change extent-same to copy entire argument struct btrfs_ioctl_file_extent_same() uses __put_user_unaligned() to copy some data back to it's argument struct. Unfortunately, not all architectures provide __put_user_unaligned(), so compiles break on them if btrfs is selected. Instead, just copy the whole struct in / out at the start and end of operations, respectively. Signed-off-by: Mark Fasheh Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/ioctl.c | 76 ++++++++++++++++++++++++++++-------------------- 1 file changed, 45 insertions(+), 31 deletions(-) diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index fba259ab9994..9d46f60cb943 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -2696,9 +2696,9 @@ out_unlock: static long btrfs_ioctl_file_extent_same(struct file *file, void __user *argp) { - struct btrfs_ioctl_same_args *args = argp; - struct btrfs_ioctl_same_args same; - struct btrfs_ioctl_same_extent_info info; + struct btrfs_ioctl_same_args tmp; + struct btrfs_ioctl_same_args *same; + struct btrfs_ioctl_same_extent_info *info; struct inode *src = file->f_dentry->d_inode; struct file *dst_file = NULL; struct inode *dst; @@ -2706,6 +2706,7 @@ static long btrfs_ioctl_file_extent_same(struct file *file, u64 len; int i; int ret; + unsigned long size; u64 bs = BTRFS_I(src)->root->fs_info->sb->s_blocksize; bool is_admin = capable(CAP_SYS_ADMIN); @@ -2716,15 +2717,30 @@ static long btrfs_ioctl_file_extent_same(struct file *file, if (ret) return ret; - if (copy_from_user(&same, + if (copy_from_user(&tmp, (struct btrfs_ioctl_same_args __user *)argp, - sizeof(same))) { + sizeof(tmp))) { ret = -EFAULT; goto out; } - off = same.logical_offset; - len = same.length; + size = sizeof(tmp) + + tmp.dest_count * sizeof(struct btrfs_ioctl_same_extent_info); + + same = kmalloc(size, GFP_NOFS); + if (!same) { + ret = -EFAULT; + goto out; + } + + if (copy_from_user(same, + (struct btrfs_ioctl_same_args __user *)argp, size)) { + ret = -EFAULT; + goto out; + } + + off = same->logical_offset; + len = same->length; /* * Limit the total length we will dedupe for each operation. @@ -2752,27 +2768,28 @@ static long btrfs_ioctl_file_extent_same(struct file *file, if (!S_ISREG(src->i_mode)) goto out; + /* pre-format output fields to sane values */ + for (i = 0; i < same->dest_count; i++) { + same->info[i].bytes_deduped = 0ULL; + same->info[i].status = 0; + } + ret = 0; - for (i = 0; i < same.dest_count; i++) { - if (copy_from_user(&info, &args->info[i], sizeof(info))) { - ret = -EFAULT; - goto out; - } + for (i = 0; i < same->dest_count; i++) { + info = &same->info[i]; - info.bytes_deduped = 0; - - dst_file = fget(info.fd); + dst_file = fget(info->fd); if (!dst_file) { - info.status = -EBADF; + info->status = -EBADF; goto next; } if (!(is_admin || (dst_file->f_mode & FMODE_WRITE))) { - info.status = -EINVAL; + info->status = -EINVAL; goto next; } - info.status = -EXDEV; + info->status = -EXDEV; if (file->f_path.mnt != dst_file->f_path.mnt) goto next; @@ -2781,32 +2798,29 @@ static long btrfs_ioctl_file_extent_same(struct file *file, goto next; if (S_ISDIR(dst->i_mode)) { - info.status = -EISDIR; + info->status = -EISDIR; goto next; } if (!S_ISREG(dst->i_mode)) { - info.status = -EACCES; + info->status = -EACCES; goto next; } - info.status = btrfs_extent_same(src, off, len, dst, - info.logical_offset); - if (info.status == 0) - info.bytes_deduped += len; + info->status = btrfs_extent_same(src, off, len, dst, + info->logical_offset); + if (info->status == 0) + info->bytes_deduped += len; next: if (dst_file) fput(dst_file); - - if (__put_user_unaligned(info.status, &args->info[i].status) || - __put_user_unaligned(info.bytes_deduped, - &args->info[i].bytes_deduped)) { - ret = -EFAULT; - goto out; - } } + ret = copy_to_user(argp, same, size); + if (ret) + ret = -EFAULT; + out: mnt_drop_write_file(file); return ret; From 94aebfb2e7d83748d882992196cb05dd39ba1807 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Fri, 20 Sep 2013 22:33:20 -0400 Subject: [PATCH 347/350] Btrfs: create the uuid tree on remount rw Users have been complaining of the uuid tree stuff warning that there is no uuid root when trying to do snapshot operations. This is because if you mount -o ro we will not create the uuid tree. But then if you mount -o rw,remount we will still not create it and then any subsequent snapshot/subvol operations you try to do will fail gloriously. Fix this by creating the uuid_root on remount rw if it was not already there. Thanks, Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/super.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 6ab0df59b6c4..e913328d0f2a 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -1383,6 +1383,16 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data) pr_warn("btrfs: failed to resume dev_replace\n"); goto restore; } + + if (!fs_info->uuid_root) { + pr_info("btrfs: creating UUID tree\n"); + ret = btrfs_create_uuid_tree(fs_info); + if (ret) { + pr_warn("btrfs: failed to create the uuid tree" + "%d\n", ret); + goto restore; + } + } sb->s_flags &= ~MS_RDONLY; } out: From 75afb352991ff1cd3cf5955bfe611de6d83a0c87 Mon Sep 17 00:00:00 2001 From: Jun'ichi Nomura Date: Sat, 21 Sep 2013 13:57:47 -0600 Subject: [PATCH 348/350] block: Add nr_bios to block_rq_remap tracepoint Adding the number of bios in a remapped request to 'block_rq_remap' tracepoint. Request remapper clones bios in a request to track the completion status of each bio. So the number of bios can be useful information for investigation. Related discussions: http://www.redhat.com/archives/dm-devel/2013-August/msg00084.html http://www.redhat.com/archives/dm-devel/2013-September/msg00024.html Signed-off-by: Jun'ichi Nomura Acked-by: Mike Snitzer Cc: Jens Axboe Signed-off-by: Jens Axboe --- include/linux/blkdev.h | 11 +++++++++++ include/trace/events/block.h | 6 ++++-- 2 files changed, 15 insertions(+), 2 deletions(-) diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 2fdb4a451b49..0e6f765aa1f5 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -862,6 +862,17 @@ static inline unsigned int blk_rq_get_max_sectors(struct request *rq) return blk_queue_get_max_sectors(q, rq->cmd_flags); } +static inline unsigned int blk_rq_count_bios(struct request *rq) +{ + unsigned int nr_bios = 0; + struct bio *bio; + + __rq_for_each_bio(bio, rq) + nr_bios++; + + return nr_bios; +} + /* * Request issue related functions. */ diff --git a/include/trace/events/block.h b/include/trace/events/block.h index 60ae7c3db912..4c2301d2ef1a 100644 --- a/include/trace/events/block.h +++ b/include/trace/events/block.h @@ -618,6 +618,7 @@ TRACE_EVENT(block_rq_remap, __field( unsigned int, nr_sector ) __field( dev_t, old_dev ) __field( sector_t, old_sector ) + __field( unsigned int, nr_bios ) __array( char, rwbs, RWBS_LEN) ), @@ -627,15 +628,16 @@ TRACE_EVENT(block_rq_remap, __entry->nr_sector = blk_rq_sectors(rq); __entry->old_dev = dev; __entry->old_sector = from; + __entry->nr_bios = blk_rq_count_bios(rq); blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq)); ), - TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu", + TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu %u", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, (unsigned long long)__entry->sector, __entry->nr_sector, MAJOR(__entry->old_dev), MINOR(__entry->old_dev), - (unsigned long long)__entry->old_sector) + (unsigned long long)__entry->old_sector, __entry->nr_bios) ); #endif /* _TRACE_BLOCK_H */ From f3cff25f05f2ac29b2ee355e611b0657482f6f1d Mon Sep 17 00:00:00 2001 From: Anatol Pomozov Date: Sun, 22 Sep 2013 12:43:47 -0600 Subject: [PATCH 349/350] cfq: explicitly use 64bit divide operation for 64bit arguments 'samples' is 64bit operant, but do_div() second parameter is 32. do_div silently truncates high 32 bits and calculated result is invalid. In case if low 32bit of 'samples' are zeros then do_div() produces kernel crash. Signed-off-by: Anatol Pomozov Acked-by: Tejun Heo Signed-off-by: Jens Axboe --- block/cfq-iosched.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index f0468e252ee4..51e06ea06a2e 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -1803,7 +1803,7 @@ static u64 cfqg_prfill_avg_queue_size(struct seq_file *sf, if (samples) { v = blkg_stat_read(&cfqg->stats.avg_queue_size_sum); - do_div(v, samples); + v = div64_u64(v, samples); } __blkg_prfill_u64(sf, pd, v); return 0; From 4a10c2ac2f368583138b774ca41fac4207911983 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 23 Sep 2013 15:41:09 -0700 Subject: [PATCH 350/350] Linux 3.12-rc2 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index de004ceb6b5e..8d0668f473ba 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 12 SUBLEVEL = 0 -EXTRAVERSION = -rc1 +EXTRAVERSION = -rc2 NAME = One Giant Leap for Frogkind # *DOCUMENTATION*