Commit Graph

766500 Commits

Author SHA1 Message Date
Lyude Paul fe2a196529 drm/amdgpu: Count disabled CRTCs in commit tail earlier
This fixes a regression I accidentally reduced that was picked up by
kasan, where we were checking the CRTC atomic states after DRM's helpers
had already freed them. Example:

==================================================================
BUG: KASAN: use-after-free in amdgpu_dm_atomic_commit_tail.cold.50+0x13d/0x15a [amdgpu]
Read of size 1 at addr ffff8803a697b071 by task kworker/u16:0/7

CPU: 7 PID: 7 Comm: kworker/u16:0 Tainted: G           O      4.18.0-rc1Lyude-Upstream+ #1
Hardware name: HP HP ZBook 15 G4/8275, BIOS P70 Ver. 01.21 05/02/2018
Workqueue: events_unbound commit_work [drm_kms_helper]
Call Trace:
 dump_stack+0xc1/0x169
 ? dump_stack_print_info.cold.1+0x42/0x42
 ? kmsg_dump_rewind_nolock+0xd9/0xd9
 ? printk+0x9f/0xc5
 ? amdgpu_dm_atomic_commit_tail.cold.50+0x13d/0x15a [amdgpu]
 print_address_description+0x6c/0x23c
 ? amdgpu_dm_atomic_commit_tail.cold.50+0x13d/0x15a [amdgpu]
 kasan_report.cold.6+0x241/0x2fd
 amdgpu_dm_atomic_commit_tail.cold.50+0x13d/0x15a [amdgpu]
 ? commit_planes_to_stream.constprop.45+0x13b0/0x13b0 [amdgpu]
 ? cpu_load_update_active+0x290/0x290
 ? finish_task_switch+0x2bd/0x840
 ? __switch_to_asm+0x34/0x70
 ? read_word_at_a_time+0xe/0x20
 ? strscpy+0x14b/0x460
 ? drm_atomic_helper_wait_for_dependencies+0x47d/0x7e0 [drm_kms_helper]
 commit_tail+0x96/0xe0 [drm_kms_helper]
 process_one_work+0x88a/0x1360
 ? create_worker+0x540/0x540
 ? __sched_text_start+0x8/0x8
 ? move_queued_task+0x760/0x760
 ? call_rcu_sched+0x20/0x20
 ? vsnprintf+0xcda/0x1350
 ? wait_woken+0x1c0/0x1c0
 ? mutex_unlock+0x1d/0x40
 ? init_timer_key+0x190/0x230
 ? schedule+0xea/0x390
 ? __schedule+0x1ea0/0x1ea0
 ? need_to_create_worker+0xe4/0x210
 ? init_worker_pool+0x700/0x700
 ? try_to_del_timer_sync+0xbf/0x110
 ? del_timer+0x120/0x120
 ? __mutex_lock_slowpath+0x10/0x10
 worker_thread+0x196/0x11f0
 ? flush_rcu_work+0x50/0x50
 ? __switch_to_asm+0x34/0x70
 ? __switch_to_asm+0x34/0x70
 ? __switch_to_asm+0x40/0x70
 ? __switch_to_asm+0x34/0x70
 ? __switch_to_asm+0x40/0x70
 ? __switch_to_asm+0x34/0x70
 ? __switch_to_asm+0x40/0x70
 ? __schedule+0x7d6/0x1ea0
 ? migrate_swap_stop+0x850/0x880
 ? __sched_text_start+0x8/0x8
 ? save_stack+0x8c/0xb0
 ? kasan_kmalloc+0xbf/0xe0
 ? kmem_cache_alloc_trace+0xe4/0x190
 ? kthread+0x98/0x390
 ? ret_from_fork+0x35/0x40
 ? ret_from_fork+0x35/0x40
 ? deactivate_slab.isra.67+0x3c4/0x5c0
 ? kthread+0x98/0x390
 ? kthread+0x98/0x390
 ? set_track+0x76/0x120
 ? schedule+0xea/0x390
 ? __schedule+0x1ea0/0x1ea0
 ? wait_woken+0x1c0/0x1c0
 ? kasan_unpoison_shadow+0x30/0x40
 ? parse_args.cold.15+0x17a/0x17a
 ? flush_rcu_work+0x50/0x50
 kthread+0x2d4/0x390
 ? kthread_create_worker_on_cpu+0xc0/0xc0
 ret_from_fork+0x35/0x40

Allocated by task 1124:
 kasan_kmalloc+0xbf/0xe0
 kmem_cache_alloc_trace+0xe4/0x190
 dm_crtc_duplicate_state+0x78/0x130 [amdgpu]
 drm_atomic_get_crtc_state+0x147/0x410 [drm]
 page_flip_common+0x57/0x230 [drm_kms_helper]
 drm_atomic_helper_page_flip+0xa6/0x110 [drm_kms_helper]
 drm_mode_page_flip_ioctl+0xc4b/0x10a0 [drm]
 drm_ioctl_kernel+0x1d4/0x260 [drm]
 drm_ioctl+0x433/0x920 [drm]
 amdgpu_drm_ioctl+0x11d/0x290 [amdgpu]
 do_vfs_ioctl+0x1a1/0x13d0
 ksys_ioctl+0x60/0x90
 __x64_sys_ioctl+0x6f/0xb0
 do_syscall_64+0x147/0x440
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Freed by task 1124:
 __kasan_slab_free+0x12e/0x180
 kfree+0x92/0x1a0
 drm_atomic_state_default_clear+0x315/0xc40 [drm]
 __drm_atomic_state_free+0x35/0xd0 [drm]
 drm_atomic_helper_update_plane+0xac/0x350 [drm_kms_helper]
 __setplane_internal+0x2d6/0x840 [drm]
 drm_mode_cursor_universal+0x41e/0xbe0 [drm]
 drm_mode_cursor_common+0x49f/0x880 [drm]
 drm_mode_cursor_ioctl+0xd8/0x130 [drm]
 drm_ioctl_kernel+0x1d4/0x260 [drm]
 drm_ioctl+0x433/0x920 [drm]
 amdgpu_drm_ioctl+0x11d/0x290 [amdgpu]
 do_vfs_ioctl+0x1a1/0x13d0
 ksys_ioctl+0x60/0x90
 __x64_sys_ioctl+0x6f/0xb0
 do_syscall_64+0x147/0x440
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

The buggy address belongs to the object at ffff8803a697b068
 which belongs to the cache kmalloc-1024 of size 1024
The buggy address is located 9 bytes inside of
 1024-byte region [ffff8803a697b068, ffff8803a697b468)
The buggy address belongs to the page:
page:ffffea000e9a5e00 count:1 mapcount:0 mapping:ffff88041e00efc0 index:0x0 compound_mapcount: 0
flags: 0x8000000000008100(slab|head)
raw: 8000000000008100 ffffea000ecbc208 ffff88041e000c70 ffff88041e00efc0
raw: 0000000000000000 0000000000170017 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8803a697af00: fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8803a697af80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8803a697b000: fc fc fc fc fc fc fc fc fc fc fc fc fc fb fb fb
                                                             ^
 ffff8803a697b080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8803a697b100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================

So, we fix this by counting the number of CRTCs this atomic commit disabled
early on in the function before their atomic states have been freed, then use
that count later to do the appropriate number of RPM puts at the end of the
function.

Acked-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Cc: stable@vger.kernel.org
Fixes: 97028037a3 ("drm/amdgpu: Grab/put runtime PM references in atomic_commit_tail()")
Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: Michel Dänzer <michel@daenzer.net>
Reported-by: Michel Dänzer <michel@daenzer.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-06-22 14:55:25 -05:00
Dave Airlie f3294568bb Fixes for v4.18-rc2:
- A reversion of a commit in drm/sun4i to fix a run-time fault.
 - Various fixes to the sii8620 bridge.
 - Small bugfix to correctly check stride in atmel-hlcdc.
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Merge tag 'drm-misc-fixes-2018-06-21' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

Fixes for v4.18-rc2:
- A reversion of a commit in drm/sun4i to fix a run-time fault.
- Various fixes to the sii8620 bridge.
- Small bugfix to correctly check stride in atmel-hlcdc.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/787d4bef-a579-4046-d0fc-f8c2c5b80c25@linux.intel.com
2018-06-22 11:03:43 +10:00
Dave Airlie 8325e6e36c drm/i915 fixes for v4.18-rc2:
- Mostly cc: stable display fixes, including a DBLSCAN regression fix
 - GEM fixes for this merge window
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Merge tag 'drm-intel-fixes-2018-06-21' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

drm/i915 fixes for v4.18-rc2:
- Mostly cc: stable display fixes, including a DBLSCAN regression fix
- GEM fixes for this merge window

Signed-off-by: Dave Airlie <airlied@redhat.com>

Link: https://patchwork.freedesktop.org/patch/msgid/87d0wkuypy.fsf@intel.com
2018-06-22 09:56:30 +10:00
Maciej Purski e8b92efa62 drm/bridge/sii8620: fix display of packed pixel modes in MHL2
Currently packed pixel modes in MHL2 can't be displayed. The device
automatically recognizes output format, so setting format other than
RGB causes failure. Fix it by writing proper values to registers.

Tested on MHL1 and MHL2 using various vendors' dongles both in
DVI and HDMI mode.

Signed-off-by: Maciej Purski <m.purski@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1516706239-9104-1-git-send-email-m.purski@samsung.com
2018-06-21 10:16:24 +02:00
Dave Airlie ae0c730672 Merge branch 'drm-fixes-4.18' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Bunch of amdgpu fixes mostly all going to stable.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180620190021.2775-1-alexander.deucher@amd.com
2018-06-21 10:13:12 +10:00
Dave Airlie 47fbf82b5a Only a small qxl fix that was queued for v4.17.
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Merge tag 'drm-misc-fixes-2018-06-12' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

Only a small qxl fix that was queued for v4.17.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/08dcbd63-ed18-6232-7bbd-547a3d63b90f@linux.intel.com
2018-06-20 16:58:49 +10:00
Dave Airlie 4216c1b9af Single fix for v4.18:
- Fix possible race conditions while unplugging DRM device.
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Merge tag 'drm-misc-next-fixes-2018-06-15' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

Single fix for v4.18:
- Fix possible race conditions while unplugging DRM device.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1fd8b7d1-e60a-0105-dfb5-d36f99ea0239@linux.intel.com
2018-06-20 16:58:31 +10:00
Dave Airlie 845876a086 Merge branch 'linux-4.18' of git://github.com/skeggsb/linux into drm-fixes
Single nouveau regression fix.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CACAvsv5VDDKaYKJShyVAGK0MJAHMZOJ02FKQ_aW5DnBCNVgRUw@mail.gmail.com
2018-06-20 16:57:09 +10:00
Michel Dänzer 7303b39e46 drm/amdgpu: Make amdgpu_vram_mgr_bo_invisible_size always accurate
Even BOs with AMDGPU_GEM_CREATE_NO_CPU_ACCESS may end up at least
partially in CPU visible VRAM, in particular when all VRAM is visible.

v2:
* Don't take VRAM mgr spinlock, not needed (Christian König)
* Make loop logic simpler and clearer.

Cc: stable@vger.kernel.org
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-06-19 13:51:45 -05:00
Michel Dänzer 5e9244ff58 drm/amdgpu: Refactor amdgpu_vram_mgr_bo_invisible_size helper
Preparation for the following fix, no functional change intended.

Cc: stable@vger.kernel.org
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-06-19 13:51:22 -05:00
Michel Dänzer 34d6d59986 drm/amdgpu: Update pin_size values before unpinning BO
At least in theory, ttm_bo_validate may move the BO, in which case the
pin_size accounting would be inconsistent with when the BO was pinned.

Cc: stable@vger.kernel.org
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-06-19 13:50:56 -05:00
James Zhu 5c53d19b76 drm/amdgpu:All UVD instances share one idle_work handle
All UVD instanses have only one dpm control, so it is better
to share one idle_work handle.

Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Tested-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-06-19 13:34:27 -05:00
Harry Wentland d9fda24804 drm/amdgpu: Don't default to DC support for Kaveri and older
We've had a number of users report failures to detect and light up
display with DC with LVDS and VGA. These connector types are not
currently supported with DC. I'd like to add support but unfortunately
don't have a system with LVDS or VGA available.

In order not to cause regressions we should probably fallback to the
non-DC driver for ASICs that support VGA and LVDS.

These ASICs are:
 * Bonaire
 * Kabini
 * Kaveri
 * Mullins

ASIC support can always be force enabled with amdgpu.dc=1

v2: Keep Hawaii on DC
v3: Added Mullins to the list

Cc: stable@vger.kernel.org
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-06-19 12:43:53 -05:00
Michel Dänzer 6fa39bc1e0 drm/amdgpu: Use kvmalloc_array for allocating VRAM manager nodes array
It can be quite big, and there's no need for it to be physically
contiguous. This is less likely to fail under memory pressure (has
actually happened while running piglit).

Cc: stable@vger.kernel.org
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-06-19 12:43:27 -05:00
Rajan Vaja 91c822c330 drm/amd/pp: Fix uninitialized variable
Initialize variable to 0 before performing logical OR operation.

Reviewed-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Rajan Vaja <rajan.vaja@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-06-19 12:42:50 -05:00
Kenneth Graunke 7a3727f385 drm/i915: Enable provoking vertex fix on Gen9 systems.
The SF and clipper units mishandle the provoking vertex in some cases,
which can cause misrendering with shaders that use flat shaded inputs.

There are chicken bits in 3D_CHICKEN3 (for SF) and FF_SLICE_CHICKEN
(for the clipper) that work around the issue.  These registers are
unfortunately not part of the logical context (even the power context),
and so we must reload them every time we start executing in a context.

Bugzilla: https://bugs.freedesktop.org/103047
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180615190605.16238-1-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: stable@vger.kernel.org
(cherry picked from commit b77422f803)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2018-06-19 15:48:24 +03:00
Mika Kuoppala bc64e05408 drm/i915: Fix context ban and hang accounting for client
If client is smart or lucky enough to create a new context
after each hang, our context banning mechanism will never
catch up, and as a result of that it will be saved from
client banning. This can result in a never ending streak of
gpu hangs caused by bad or malicious client, preventing
access from other legit gpu clients.

Fix this by always incrementing per client ban score if
it hangs in short successions regardless of context ban
scoring. The exception are non bannable contexts. They remain
detached from client ban scoring mechanism.

v2: xchg timestamp, tidyup (Chris)
v3: comment, bannable & banned together (Chris)

Fixes: b083a0870c ("drm/i915: Add per client max context ban limit")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180615104429.31477-1-mika.kuoppala@linux.intel.com
(cherry picked from commit 14921f3cef)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2018-06-19 15:48:16 +03:00
Ville Syrjälä 4dccc4d517 drm/i915: Turn off g4x DP port in .post_disable()
While Bspec doesn't list a specific sequence for turning off the DP port
on g4x we are getting an underrun if the port is disabled in the
.disable() hook. Looks like the pipe stops when the port stops, and by
that time the plane disable may not have completed yet. Also the plane(s)
seem to end up in some wonky state when this happens as they also signal
another underrun immediately after we turn them back on during the next
enable sequence.

We could add a vblank wait in .disable() to avoid wedging the planes,
but I assume we're still tripping up the pipe in some way. So it seems
better to me to just follow the ILK+ sequence and turn off the DP port
in .post_disable() instead. This sequence doesn't seem to suffer from
this problem. Could be it was always the intended sequence for DP and
the gen4 bspec was just never updated to include it.

Originally we used the bad sequence even on ilk+, but I changed that
in commit 08aff3fe26 ("drm/i915: Move DP port disable to post_disable
for pch platforms") as it was causing issues on those platforms as well.
I left out g4x then only because I didn't have the hardware to test it.
Now that I do it's fairly clear that the ilk+ sequence is also the
right choice for g4x.

v2: Fix whitespace fail (Jani)
    Mention the ilk+ commit (Jani)

Cc: stable@vger.kernel.org
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180613160553.11664-2-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
(cherry picked from commit 51a9f6dfc0)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2018-06-19 15:48:06 +03:00
Ville Syrjälä 1e34f1d368 drm/i915: Disallow interlaced modes on g4x DP outputs
Looks like interlaced DP output doesn't work on g4x either. Not all
that surprising considering we already established that interlaced
DP output is busted on VLV/CHV.

Cc: stable@vger.kernel.org
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180613160553.11664-1-ville.syrjala@linux.intel.com
(cherry picked from commit 929168c5f3)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2018-06-19 15:47:59 +03:00
Ville Syrjälä 4dc055c9cc drm/i915: Fix PIPESTAT irq ack on i965/g4x
On i965/g4x IIR is edge triggered. So in order for IIR to notice that
there is still a pending interrupt we have to force and edge in ISR.
For the ISR/IIR pipe event bits we can do that by temporarily
clearing all the PIPESTAT enable bits when we ack the status bits.
This will force the ISR pipe event bit low, and it can then go back
high when we restore the PIPESTAT enable bits.

This avoids the following race:
1. stat = read(PIPESTAT)
2. an enabled PIPESTAT status bit goes high
3. write(PIPESTAT, enable|stat);
4. write(IIR, PIPE_EVENT)

The end result is IIR==0 and ISR!=0. This can lead to nasty
vblank wait/flip_done timeouts if another interrupt source
doesn't trick us into looking at the PIPESTAT status bits despite
the IIR PIPE_EVENT bit being low.

Before i965 IIR was level triggered so this problem can't actually
happen there. And curiously VLV/CHV went back to the level triggered
scheme as well. But for simplicity we'll use the same i965/g4x
compatible code for all platforms.

Cc: stable@vger.kernel.org
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106033
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105225
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106030
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180611200258.27121-1-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
(cherry picked from commit 132c27c97c)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2018-06-19 15:47:54 +03:00
Ville Syrjälä 541ab84d2b drm/i915: Allow DBLSCAN user modes with eDP/LVDS/DSI
When encountering a connector with the scaling mode property both
intel and modesetting ddxs sometimes add tons of DBLSCAN modes
to the output's mode list. The idea presumably being that since the
output will be going through the panel fitter anyway we can pretend
to use any kind of mode.

Sadly that means we can't reject user modes with the DBLSCAN flag
until we know whether we're going to be using the panel's native
mode or the user mode directly. Doing otherwise means X clients using
xf86vidmode/xrandr will get a protocol error (and often self
terminate as a result) when the kernel refuses to use the requested
mode with the DBLSCAN flag.

To undo the regression we'll move the DBLSCAN checks into the
connector->mode_valid() and encoder->compute_config() hooks.

Cc: stable@vger.kernel.org
Cc: Vito Caputo <vcaputo@pengaru.com>
Reported-by: Vito Caputo <vcaputo@pengaru.com>
Fixes: e995ca0b81 ("drm/i915: Provide a device level .mode_valid() hook")
References: https://lkml.org/lkml/2018/5/21/715
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180524125403.23445-1-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106804
Tested-by: Arkadiusz Miskiewicz <arekm@maven.pl>
(cherry picked from commit e4dd27aadd)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2018-06-19 15:47:49 +03:00
Chris Wilson a5bfcdf0e1 drm/i915/execlists: Avoid putting the error pointer
On allocation error, do not jump to the unwind handler that tries to
free the error pointer.

Reported-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Fixes: a89d1f921c ("drm/i915: Split i915_gem_timeline into individual timelines")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180611153332.14824-1-chris@chris-wilson.co.uk
(cherry picked from commit 467d35789e)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2018-06-19 15:47:44 +03:00
Chris Wilson 7ba33e1c9d drm/i915: Apply batch location restrictions before pinning
We special case the position of the batch within the GTT to prevent
negative self-relocation deltas from underflowing. However, that
restriction is being applied after a trial pin of the batch in its
current position. Thus we are not rejecting an invalid location if the
batch has been used before, leading to an assertion if we happen to need
to rearrange the entire payload. In the worst case, this may cause a GPU
hang on gen7 or perhaps missing state.

References: https://bugs.freedesktop.org/show_bug.cgi?id=105720
Fixes: 2889caa923 ("drm/i915: Eliminate lots of iterations over the execobjects array")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Martin Peres <martin.peres@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180610194325.13467-2-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
(cherry picked from commit 746c8f143a)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2018-06-19 15:47:37 +03:00
Ben Skeggs 1264f8325e drm/nouveau/kms/nv50-: cursors always use core channel vram ctxdma
Ctxdmas for cursors from all heads are setup in the core channel, and due
to us tracking allocated handles per-window, we were failing with -EEXIST
on multiple-head setups trying to allocate duplicate handles.

The cursor code is hardcoded to use the core channel vram ctxdma already,
so just skip ctxdma allocation for cursor fbs to fix the issue.

Fixes: 5bca1621c0 ("drm/nouveau/kms/nv50-: move fb ctxdma tracking into windows")
Reported-by: Adam Borowski <kilobyte@angband.pl>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-06-19 10:38:26 +10:00
Paul Kocialkowski 58b3d02f06
Revert "drm/sun4i: Handle DRM_BUS_FLAG_PIXDATA_*EDGE"
This reverts commit 2c17a4368a.

The offending commit triggers a run-time fault when accessing the panel
element of the sun4i_tcon structure when no such panel is attached.

It was apparently assumed in said commit that a panel is always used with
the TCON. Although it is often the case, this is not always true.
For instance a bridge might be used instead of a panel.

This issue was discovered using an A13-OLinuXino, that uses the TCON
in RGB mode for a simple DAC-based VGA bridge.

Cc: stable@vger.kernel.org
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180613081647.31183-1-paul.kocialkowski@bootlin.com
2018-06-18 10:02:11 +02:00
Stefan Agner 9fcf2b3c1c drm/atmel-hlcdc: check stride values in the first plane
The statement always evaluates to true since the struct fields
are arrays. This has shown up as a warning when compiling with
clang:
  warning: address of array 'desc->layout.xstride' will always
      evaluate to 'true' [-Wpointer-bool-conversion]

Check for values in the first plane instead.

Fixes: 1a396789f6 ("drm: add Atmel HLCDC Display Controller support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180617084826.31885-1-stefan@agner.ch
2018-06-17 12:25:27 +02:00
Linus Torvalds ce397d215c Linux 4.18-rc1 2018-06-17 08:04:49 +09:00
Linus Torvalds 265c5596da for-linus-20180616
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Merge tag 'for-linus-20180616' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "A collection of fixes that should go into -rc1. This contains:

   - bsg_open vs bsg_unregister race fix (Anatoliy)

   - NVMe pull request from Christoph, with fixes for regressions in
     this window, FC connect/reconnect path code unification, and a
     trace point addition.

   - timeout fix (Christoph)

   - remove a few unused functions (Christoph)

   - blk-mq tag_set reinit fix (Roman)"

* tag 'for-linus-20180616' of git://git.kernel.dk/linux-block:
  bsg: fix race of bsg_open and bsg_unregister
  block: remov blk_queue_invalidate_tags
  nvme-fabrics: fix and refine state checks in __nvmf_check_ready
  nvme-fabrics: handle the admin-only case properly in nvmf_check_ready
  nvme-fabrics: refactor queue ready check
  blk-mq: remove blk_mq_tagset_iter
  nvme: remove nvme_reinit_tagset
  nvme-fc: fix nulling of queue data on reconnect
  nvme-fc: remove reinit_request routine
  blk-mq: don't time out requests again that are in the timeout handler
  nvme-fc: change controllers first connect to use reconnect path
  nvme: don't rely on the changed namespace list log
  nvmet: free smart-log buffer after use
  nvme-rdma: fix error flow during mapping request data
  nvme: add bio remapping tracepoint
  nvme: fix NULL pointer dereference in nvme_init_subsystem
  blk-mq: reinit q->tag_set_list entry only after grace period
2018-06-17 05:37:55 +09:00
Linus Torvalds 5e7b9212a4 Solve a series of broken links for files under Documentation:
- can.rst: fix a footnote reference;
 - crypto_engine.rst: Fix two parsing warnings;
 - Fix a lot of broken references to Documentation/*;
 - Improves the scripts/documentation-file-ref-check script,
   in order to help detecting/fixing broken references,
   preventing false-positives.
 
 After this patch series, only 33 broken references to doc files are
 detected by scripts/documentation-file-ref-check.
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Merge tag 'docs-broken-links' of git://linuxtv.org/mchehab/experimental

Pull documentation fixes from Mauro Carvalho Chehab:
 "This solves a series of broken links for files under Documentation,
  and improves a script meant to detect such broken links (see
  scripts/documentation-file-ref-check).

  The changes on this series are:

   - can.rst: fix a footnote reference;

   - crypto_engine.rst: Fix two parsing warnings;

   - Fix a lot of broken references to Documentation/*;

   - improve the scripts/documentation-file-ref-check script, in order
     to help detecting/fixing broken references, preventing
     false-positives.

  After this patch series, only 33 broken references to doc files are
  detected by scripts/documentation-file-ref-check"

* tag 'docs-broken-links' of git://linuxtv.org/mchehab/experimental: (26 commits)
  fix a series of Documentation/ broken file name references
  Documentation: rstFlatTable.py: fix a broken reference
  ABI: sysfs-devices-system-cpu: remove a broken reference
  devicetree: fix a series of wrong file references
  devicetree: fix name of pinctrl-bindings.txt
  devicetree: fix some bindings file names
  MAINTAINERS: fix location of DT npcm files
  MAINTAINERS: fix location of some display DT bindings
  kernel-parameters.txt: fix pointers to sound parameters
  bindings: nvmem/zii: Fix location of nvmem.txt
  docs: Fix more broken references
  scripts/documentation-file-ref-check: check tools/*/Documentation
  scripts/documentation-file-ref-check: get rid of false-positives
  scripts/documentation-file-ref-check: hint: dash or underline
  scripts/documentation-file-ref-check: add a fix logic for DT
  scripts/documentation-file-ref-check: accept more wildcards at filenames
  scripts/documentation-file-ref-check: fix help message
  media: max2175: fix location of driver's companion documentation
  media: v4l: fix broken video4linux docs locations
  media: dvb: point to the location of the old README.dvb-usb file
  ...
2018-06-17 05:25:18 +09:00
Linus Torvalds dbb2816fc7 \n
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Merge tag 'fsnotify_for_v4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull fsnotify updates from Jan Kara:
 "fsnotify cleanups unifying handling of different watch types.

  This is the shortened fsnotify series from Amir with the last five
  patches pulled out. Amir has modified those patches to not change
  struct inode but obviously it's too late for those to go into this
  merge window"

* tag 'fsnotify_for_v4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  fsnotify: add fsnotify_add_inode_mark() wrappers
  fanotify: generalize fanotify_should_send_event()
  fsnotify: generalize send_to_group()
  fsnotify: generalize iteration of marks by object type
  fsnotify: introduce marks iteration helpers
  fsnotify: remove redundant arguments to handle_event()
  fsnotify: use type id to identify connector object type
2018-06-17 05:06:18 +09:00
Linus Torvalds 644f2639ae fbdev changes for v4.18:
- mark omapfb drivers as orphans in MAINTAINERS file (Tomi Valkeinen)
 
 - add missing module license tags to omap/omapfb driver (Arnd Bergmann)
 
 - add missing GPIOLIB dependendy to omap2/omapfb driver (Arnd Bergmann)
 
 - convert savagefb, aty128fb & radeonfb drivers to use msleep & co.
   (Jia-Ju Bai)
 
 - allow COMPILE_TEST build for viafb driver (media part was reviewed by
   media subsystem Maintainer)
 
 - remove unused MERAM support from sh_mobile_lcdcfb and shmob-drm drivers
   (drm parts were acked by shmob-drm driver Maintainer)
 
 - remove unused auo_k190xfb drivers
 
 - misc cleanups (Souptick Joarder, Wolfram Sang, Markus Elfring, Andy
   Shevchenko, Colin Ian King)
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Merge tag 'fbdev-v4.18' of git://github.com/bzolnier/linux

Pull fbdev updates from Bartlomiej Zolnierkiewicz:
 "There is nothing really major here, few small fixes, some cleanups and
  dead drivers removal:

   - mark omapfb drivers as orphans in MAINTAINERS file (Tomi Valkeinen)

   - add missing module license tags to omap/omapfb driver (Arnd
     Bergmann)

   - add missing GPIOLIB dependendy to omap2/omapfb driver (Arnd
     Bergmann)

   - convert savagefb, aty128fb & radeonfb drivers to use msleep & co.
     (Jia-Ju Bai)

   - allow COMPILE_TEST build for viafb driver (media part was reviewed
     by media subsystem Maintainer)

   - remove unused MERAM support from sh_mobile_lcdcfb and shmob-drm
     drivers (drm parts were acked by shmob-drm driver Maintainer)

   - remove unused auo_k190xfb drivers

   - misc cleanups (Souptick Joarder, Wolfram Sang, Markus Elfring, Andy
     Shevchenko, Colin Ian King)"

* tag 'fbdev-v4.18' of git://github.com/bzolnier/linux: (26 commits)
  fb_omap2: add gpiolib dependency
  video/omap: add module license tags
  MAINTAINERS: make omapfb orphan
  video: fbdev: pxafb: match_string() conversion fixup
  video: fbdev: nvidia: fix spelling mistake: "scaleing" -> "scaling"
  video: fbdev: fix spelling mistake: "frambuffer" -> "framebuffer"
  video: fbdev: pxafb: Convert to use match_string() helper
  video: fbdev: via: allow COMPILE_TEST build
  video: fbdev: remove unused sh_mobile_meram driver
  drm: shmobile: remove unused MERAM support
  video: fbdev: sh_mobile_lcdcfb: remove unused MERAM support
  video: fbdev: remove unused auo_k190xfb drivers
  video: omap: Improve a size determination in omapfb_do_probe()
  video: sm501fb: Improve a size determination in sm501fb_probe()
  video: fbdev-MMP: Improve a size determination in path_init()
  video: fbdev-MMP: Delete an error message for a failed memory allocation in two functions
  video: auo_k190x: Delete an error message for a failed memory allocation in auok190x_common_probe()
  video: sh_mobile_lcdcfb: Delete an error message for a failed memory allocation in two functions
  video: sh_mobile_meram: Delete an error message for a failed memory allocation in sh_mobile_meram_probe()
  video: fbdev: sh_mobile_meram: Drop SUPERH platform dependency
  ...
2018-06-17 05:00:24 +09:00
Linus Torvalds 35773c9381 Merge branch 'afs-proc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull AFS updates from Al Viro:
 "Assorted AFS stuff - ended up in vfs.git since most of that consists
  of David's AFS-related followups to Christoph's procfs series"

* 'afs-proc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  afs: Optimise callback breaking by not repeating volume lookup
  afs: Display manually added cells in dynamic root mount
  afs: Enable IPv6 DNS lookups
  afs: Show all of a server's addresses in /proc/fs/afs/servers
  afs: Handle CONFIG_PROC_FS=n
  proc: Make inline name size calculation automatic
  afs: Implement network namespacing
  afs: Mark afs_net::ws_cell as __rcu and set using rcu functions
  afs: Fix a Sparse warning in xdr_decode_AFSFetchStatus()
  proc: Add a way to make network proc files writable
  afs: Rearrange fs/afs/proc.c to remove remaining predeclarations.
  afs: Rearrange fs/afs/proc.c to move the show routines up
  afs: Rearrange fs/afs/proc.c by moving fops and open functions down
  afs: Move /proc management functions to the end of the file
2018-06-16 16:32:04 +09:00
Linus Torvalds 29d6849d88 Merge branch 'work.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull compat updates from Al Viro:
 "Some biarch patches - getting rid of assorted (mis)uses of
  compat_alloc_user_space().

  Not much in that area this cycle..."

* 'work.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  orangefs: simplify compat ioctl handling
  signalfd: lift sigmask copyin and size checks to callers of do_signalfd4()
  vmsplice(): lift importing iovec into vmsplice(2) and compat counterpart
2018-06-16 16:21:50 +09:00
Linus Torvalds a5b729ea18 Merge branch 'work.aio' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull aio fixes from Al Viro:
 "Assorted AIO followups and fixes"

* 'work.aio' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  eventpoll: switch to ->poll_mask
  aio: only return events requested in poll_mask() for IOCB_CMD_POLL
  eventfd: only return events requested in poll_mask()
  aio: mark __aio_sigset::sigmask const
2018-06-16 16:11:40 +09:00
Linus Torvalds 9215310cf1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Various netfilter fixlets from Pablo and the netfilter team.

 2) Fix regression in IPVS caused by lack of PMTU exceptions on local
    routes in ipv6, from Julian Anastasov.

 3) Check pskb_trim_rcsum for failure in DSA, from Zhouyang Jia.

 4) Don't crash on poll in TLS, from Daniel Borkmann.

 5) Revert SO_REUSE{ADDR,PORT} change, it regresses various things
    including Avahi mDNS. From Bart Van Assche.

 6) Missing of_node_put in qcom/emac driver, from Yue Haibing.

 7) We lack checking of the TCP checking in one special case during SYN
    receive, from Frank van der Linden.

 8) Fix module init error paths of mac80211 hwsim, from Johannes Berg.

 9) Handle 802.1ad properly in stmmac driver, from Elad Nachman.

10) Must grab HW caps before doing quirk checks in stmmac driver, from
    Jose Abreu.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (81 commits)
  net: stmmac: Run HWIF Quirks after getting HW caps
  neighbour: skip NTF_EXT_LEARNED entries during forced gc
  net: cxgb3: add error handling for sysfs_create_group
  tls: fix waitall behavior in tls_sw_recvmsg
  tls: fix use-after-free in tls_push_record
  l2tp: filter out non-PPP sessions in pppol2tp_tunnel_ioctl()
  l2tp: reject creation of non-PPP sessions on L2TPv2 tunnels
  mlxsw: spectrum_switchdev: Fix port_vlan refcounting
  mlxsw: spectrum_router: Align with new route replace logic
  mlxsw: spectrum_router: Allow appending to dev-only routes
  ipv6: Only emit append events for appended routes
  stmmac: added support for 802.1ad vlan stripping
  cfg80211: fix rcu in cfg80211_unregister_wdev
  mac80211: Move up init of TXQs
  mac80211_hwsim: fix module init error paths
  cfg80211: initialize sinfo in cfg80211_get_station
  nl80211: fix some kernel doc tag mistakes
  hv_netvsc: Fix the variable sizes in ipsecv2 and rsc offload
  rds: avoid unenecessary cong_update in loop transport
  l2tp: clean up stale tunnel or session in pppol2tp_connect's error path
  ...
2018-06-16 07:39:34 +09:00
Linus Torvalds de7f01c22a Modules updates for v4.18
Summary of modules changes for the 4.18 merge window:
 
 - Minor code cleanup and also allow sig_enforce param to be shown in
   sysfs with CONFIG_MODULE_SIG_FORCE
 
 Signed-off-by: Jessica Yu <jeyu@kernel.org>
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Merge tag 'modules-for-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux

Pull module updates from Jessica Yu:
 "Minor code cleanup and also allow sig_enforce param to be shown in
  sysfs with CONFIG_MODULE_SIG_FORCE"

* tag 'modules-for-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
  module: Allow to always show the status of modsign
  module: Do not access sig_enforce directly
2018-06-16 07:36:39 +09:00
Linus Torvalds 8d1e5133bf Merge branch 'for-linus-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
Pull uml updates from Richard Weinberger:
 "Minor updates for UML:

   - fixes for our new vector network driver by Anton

   - initcall cleanup by Alexander

   - We have a new mailinglist, sourceforge.net sucks"

* 'for-linus-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
  um: Fix raw interface options
  um: Fix initialization of vector queues
  um: remove uml initcalls
  um: Update mailing list address
2018-06-16 06:50:51 +09:00
Linus Torvalds 6a4d4b3253 RISC-V Updates for the 4.18 Merge Window
This tag contains some small RISC-V updates I'd like to target for 4.18.
 They are all fairly small this time.  Here's a short summary, there's
 more info in the commits/merges.
 
 * A fix to __clear_user to respect the passed arguments.
 * Enough support for the perf subsystem to work with RISC-V's ISA
   defined performance counters.
 * Support for sparse and cleanups suggested by it.
 * Support for R_RISCV_32 (a relocation, not the 32-bit ISA).
 * Some MAINTAINERS cleanups.
 * The addition of CONFIG_HVC_RISCV_SBI to our defconfig, as it's always
   present.
 
 I've given these a simple build+boot test.
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Merge tag 'riscv-for-linus-4.18-merge_window' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux

Pull RISC-V updates from Palmer Dabbelt:
 "This contains some small RISC-V updates I'd like to target for 4.18.

  They are all fairly small this time. Here's a short summary, there's
  more info in the commits/merges:

   - a fix to __clear_user to respect the passed arguments.

   - enough support for the perf subsystem to work with RISC-V's ISA
     defined performance counters.

   - support for sparse and cleanups suggested by it.

   - support for R_RISCV_32 (a relocation, not the 32-bit ISA).

   - some MAINTAINERS cleanups.

   - the addition of CONFIG_HVC_RISCV_SBI to our defconfig, as it's
     always present.

  I've given these a simple build+boot test"

* tag 'riscv-for-linus-4.18-merge_window' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux:
  RISC-V: Add CONFIG_HVC_RISCV_SBI=y to defconfig
  RISC-V: Handle R_RISCV_32 in modules
  riscv/ftrace: Export _mcount when DYNAMIC_FTRACE isn't set
  riscv: add riscv-specific predefines to CHECKFLAGS
  riscv: split the declaration of __copy_user
  riscv: no __user for probe_kernel_address()
  riscv: use NULL instead of a plain 0
  perf: riscv: Add Document for Future Porting Guide
  perf: riscv: preliminary RISC-V support
  MAINTAINERS: Update Albert's email, he's back at Berkeley
  MAINTAINERS: Add myself as a maintainer for SiFive's drivers
  riscv: Fix the bug in memory access fixup code
2018-06-16 06:42:43 +09:00
Linus Torvalds 8949170cf4 Mostly the PPC part of the release, but also switching to Arnd's fix
for the hyperv config issue and a typo fix.
 
 Main PPC changes: reimplement the MMIO instruction emulation,
 transactional memory support for PR KVM, improve radix page table
 handling.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull more kvm updates from Paolo Bonzini:
 "Mostly the PPC part of the release, but also switching to Arnd's fix
  for the hyperv config issue and a typo fix.

  Main PPC changes:

   - reimplement the MMIO instruction emulation

   - transactional memory support for PR KVM

   - improve radix page table handling"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (63 commits)
  KVM: x86: VMX: redo fix for link error without CONFIG_HYPERV
  KVM: x86: fix typo at kvm_arch_hardware_setup comment
  KVM: PPC: Book3S PR: Fix failure status setting in tabort. emulation
  KVM: PPC: Book3S PR: Enable use on POWER9 bare-metal hosts in HPT mode
  KVM: PPC: Book3S PR: Don't let PAPR guest set MSR hypervisor bit
  KVM: PPC: Book3S PR: Fix failure status setting in treclaim. emulation
  KVM: PPC: Book3S PR: Fix MSR setting when delivering interrupts
  KVM: PPC: Book3S PR: Handle additional interrupt types
  KVM: PPC: Book3S PR: Enable kvmppc_get/set_one_reg_pr() for HTM registers
  KVM: PPC: Book3S: Remove load/put vcpu for KVM_GET_REGS/KVM_SET_REGS
  KVM: PPC: Remove load/put vcpu for KVM_GET/SET_ONE_REG ioctl
  KVM: PPC: Move vcpu_load/vcpu_put down to each ioctl case in kvm_arch_vcpu_ioctl
  KVM: PPC: Book3S PR: Enable HTM for PR KVM for KVM_CHECK_EXTENSION ioctl
  KVM: PPC: Book3S PR: Support TAR handling for PR KVM HTM
  KVM: PPC: Book3S PR: Add guard code to prevent returning to guest with PR=0 and Transactional state
  KVM: PPC: Book3S PR: Add emulation for tabort. in privileged state
  KVM: PPC: Book3S PR: Add emulation for trechkpt.
  KVM: PPC: Book3S PR: Add emulation for treclaim.
  KVM: PPC: Book3S PR: Restore NV regs after emulating mfspr from TM SPRs
  KVM: PPC: Book3S PR: Always fail transactions in guest privileged state
  ...
2018-06-16 06:37:04 +09:00
Linus Torvalds 2f3f056685 virtio, vhost: features, fixes
VF support for virtio.
 DMA barriers for virtio strong barriers.
 Bugfixes.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio updates from Michael Tsirkin:
 "virtio, vhost: features, fixes

   - PCI virtual function support for virtio

   - DMA barriers for virtio strong barriers

   - bugfixes"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  virtio: update the comments for transport features
  virtio_pci: support enabling VFs
  vhost: fix info leak due to uninitialized memory
  virtio_ring: switch to dma_XX barriers for rpmsg
2018-06-16 06:35:02 +09:00
Mauro Carvalho Chehab 44348e8ac1 fix a series of Documentation/ broken file name references
As files move around, their previous links break. Fix the
references for them.

Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15 18:10:01 -03:00
Mauro Carvalho Chehab 315e6bc538 Documentation: rstFlatTable.py: fix a broken reference
The old HOWTO was removed a long time ago. The flat table
version is not metioned elsewhere, so just get rid of the
text.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15 18:10:01 -03:00
Mauro Carvalho Chehab 6ec71b205d ABI: sysfs-devices-system-cpu: remove a broken reference
This file doesn't exist anymore:
	Documentation/cpu-freq/user-guide.txt

As the ABI already points to Documentation/cpu-freq, just
remove the broken link and the associated text.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15 18:10:01 -03:00
Mauro Carvalho Chehab e5ca4259b8 devicetree: fix a series of wrong file references
As files got renamed, their references broke.

Manually fix a series of broken refs at the DT bindings.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15 18:10:01 -03:00
Mauro Carvalho Chehab 18ba1f9860 devicetree: fix name of pinctrl-bindings.txt
Rename:
	pinctrl-binding.txt -> pinctrl-bindings.txt

In order to match the current name of this file.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15 18:10:01 -03:00
Mauro Carvalho Chehab 6c79521fa8 devicetree: fix some bindings file names
There were some file movements that changed the location for
some DT bindings. Fix them with:
	scripts/documentation-file-ref-check --fix

After manually checking if the new file makes sense.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15 18:10:01 -03:00
Mauro Carvalho Chehab 5efa6f8473 MAINTAINERS: fix location of DT npcm files
The specified locations are not right. Fix the wildcard logic
to point to the correct directories.

Without that, get-maintainer won't get things right:

	$ ./scripts/get_maintainer.pl --no-git-fallback --no-r --no-n --no-l -f Documentation/devicetree/bindings/arm/cpu-enable-method/nuvoton,npcm750-smp
	robh+dt@kernel.org (maintainer:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS)
	mark.rutland@arm.com (maintainer:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS)

After the patch, it will properly point to NPCM arch maintainers:
	$ ./scripts/get_maintainer.pl --no-git-fallback --no-r --no-n --no-l -f Documentation/devicetree/bindings/arm/cpu-enable-method/nuvoton,npcm750-smp
	avifishman70@gmail.com (supporter:ARM/NUVOTON NPCM ARCHITECTURE)
	tmaimon77@gmail.com (supporter:ARM/NUVOTON NPCM ARCHITECTURE)
	robh+dt@kernel.org (maintainer:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS)
	mark.rutland@arm.com (maintainer:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS)

Cc: Avi Fishman <avifishman70@gmail.com>
Cc: Tomer Maimon <tmaimon77@gmail.com>
Cc: Patrick Venture <venture@google.com>
Cc: Nancy Yuen <yuenn@google.com>
Cc: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15 18:10:01 -03:00
Mauro Carvalho Chehab 2f635cff0e MAINTAINERS: fix location of some display DT bindings
Those files got a manufacturer's name prepended and were moved around.
Adjust their references accordingly.

Also, due those movements, Documentation/devicetree/bindings/video
doesn't exist anymore.

Cc: David Airlie <airlied@linux.ie>
Cc: David Lechner <david@lechnology.com>
Cc: Peter Senna Tschudin <peter.senna@collabora.com>
Cc: Martin Donnelly <martin.donnelly@ge.com>
Cc: Martyn Welch <martyn.welch@collabora.co.uk>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Alison Wang <alison.wang@nxp.com>
Cc: Eric Anholt <eric@anholt.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15 18:10:01 -03:00
Mauro Carvalho Chehab 1ca2c806d8 kernel-parameters.txt: fix pointers to sound parameters
The alsa parameters file was renamed to alsa-configuration.rst.

With regards to OSS, it got retired as a hole by  at changeset
727dede0ba ("sound: Retire OSS"). So, it doesn't make sense
to keep mentioning it at kernel-parameters.txt.

Fixes: 727dede0ba ("sound: Retire OSS")
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15 18:10:01 -03:00
Mauro Carvalho Chehab 042c768e06 bindings: nvmem/zii: Fix location of nvmem.txt
The location pointed there is missing "bindings/" on its path.

Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15 18:10:01 -03:00