It only works that way on GEN6 and GEN7. Let's not assume GENn will be
the same.
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The PPGTT scratch page is used for all gens, and doing it in the global
part of our PPGTT setup makes the code a bit nicer.
This was in a patch submitted earlier as part of the PPGTT cleanups.
Grumpy maintainer must have missed it, and I didn't yell when
appropriate. Apologies for everyone :-)
v2: Update commit message
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
There used to be other fixes in this patch but they've slowly disappeared as
other parts have been fixed.
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This will allow us to read/write registers in GTT init.
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
[danvet: Fix up error handling. We really should look into devres for
this stuff ...]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We can assume that the PTE layout, and size changes for future
generations. To avoid confusion with the existing GEN6 PTE typedef, give
it a GEN6_ prefix.
v2: Fixup checkpatch warning and bikeshed commit message slightly.
v3: Rebase on top of Imre's for_each_sg_pages rework.
v4: Fixup conflicts in patch series reordering.
Signed-off-by: Ben Widawsky <ben@bwidawsk.net> (v1)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
All gen6+ parts so far have 1 BAR which holds both the register space
and the GTT PTEs. Up until now, that was a 4MB BAR with half allocated
to each.
I have a strong hunch (wink, nod, wink) that future gens will also keep
a similar 50-50 split though the sizes may change. To help this along
change the code to obey the rule of half the total size instead of a
hard-coded 2MB.
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Enabling context support increases SwapBuffers latency by about 20%
(measured on an i7-3720qm). We can offset that loss slightly by enabling
faster caching for the contexts. As they are not backed by any
particular cache (such as the sampler or render caches) our only option
is to select the generic mid-level cache. This reduces the latency of
the swap by about 5%.
Oddly this effect can be observed running smokin-guns on IVB at
1280x1024:
Using BLT copies for swaps: 151.67 fps
Using Render copies for swaps (unpatched): 141.70 fps
With contexts disabled: 150.23 fps
With contexts in L3$: 150.77 fps
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ben Widawsky <ben@bwidawsk.net>
Cc: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Bspec has been been updated and dropped these two changes for non-sdv
LPT PCHs.
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
In order to fully serialize access to the fenced region and the update
to the fence register we need to take extreme measures on SNB+, and
manually flush writes to memory prior to writing the fence register in
conjunction with the memory barriers placed around the register write.
Fixes i-g-t/gem_fence_thrash
v2: Bring a bigger gun
v3: Switch the bigger gun for heavier bullets (Arjan van de Ven)
v4: Remove changes for working generations.
v5: Reduce to a per-cpu wbinvd() call prior to updating the fences.
v6: Rewrite comments to ellide forgotten history.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=62191
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jon Bloomfield <jon.bloomfield@intel.com>
Tested-by: Jon Bloomfield <jon.bloomfield@intel.com> (v2)
Cc: stable@vger.kernel.org
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Userspace can easily hit this and does since Ville added a new evil
igt testcase in:
commit 069e35e0fc3785faa562adcfd2dd7bbed4cb1dea
Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Mon Mar 4 15:34:06 2013 +0200
kms_flip: Add flip-vs-bad-tiling test
v2: Fix the spelling in the added comment (Chris).
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=63246
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Since the ratio is different, we also need to pass in the parameters
for the reduced clock. Might or might not reduce flicker for the
auto-downclocking on lvds/eDP.
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Only on IBX should we set the limiting factor to 25 unconditionally
for dual-channel mode, on CPT/PPT 25 only applies when the lvds
refclock is 100MHz.
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
commit de13a2e3f8
Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date: Thu Sep 20 18:36:05 2012 -0300
drm/i915: extract compute_dpll from ironlake_crtc_mode_set
missed the subtle adjustment of the FP1 register. Fix this up by
passing a pointer around instead of the value.
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The connector associated with the encoder is considered active when the
output associtated with this connector is active on the encoder. The
encoder itself is considered active when either there is an active
output on it or the respective SDVO channel is active.
Having active outputs when the SDVO channel is inactive seems to be
inconsistent: such states can be found when intel_modeset_setup_hw_state()
collects the hardware state set by the BIOS.
This inconsistency will be fixed in intel_sanitize_crtc()
(when intel_crtc_update_dpms() is called), this however only happens
when the encoder is associated with a crtc.
This patch also reverts:
commit bd6946e87a
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue Apr 2 21:30:34 2013 +0200
drm/i915: Fix sdvo connector get_hw_state function
Signed-off-by: Egbert Eich <eich@suse.de>
Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=63031
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Patrik writes:
I haven't had much review or testing on other platforms than Poulsbo but
at least the following Cedarview bug has been squashed and no
regressions reported: https://bugs.freedesktop.org/show_bug.cgi?id=58527
* 'gma500-next' of git://github.com/patjak/drm-gma500:
drm/gma500: Add debugging info to psb_gtt_restore()
drm/gma500: Check connector status before restoring sdvo
gma500:fix build failure for 3.9-rc5
drm/gma500: Fix hibernation problems on sdvo encoders
drm/gma500: Add hooks for hibernation
drm/gma500: Activate the gtt rebuild on suspend/resume
drm/gma500: Add support for rebuilding the gtt
drm/gma500: Change fb name so pm-utils doesn't apply quirks
gma500: Make VGA and HDMI connector hotpluggable
drm/gma500: Clean up various defines
drm/gma500: Remove unnecessary function exposure
drm/gma500: Type clock limits directly into array and remove defines
drm/gma500: Calculate clock in one function instead of three identical
drm/gma500: Remove unused i8xx clock limits
gma500: medfield: Fix possible NULL pointer dereference
drivers: gpu: drm: gma500: Replaced calls kzalloc & memcpy with kmemdup
gma500: remove unused drm_psb_no_fb
Alex writes:
This is the initial 3.10 pull request for radeon. The big changes here
are UVD support and proper tiling support for SI. The rest is
bug fixes. I hope to have another pull request later in the week with
some new things we've been working on internally.
* 'drm-next-3.10' of git://people.freedesktop.org/~agd5f/linux: (28 commits)
drm/radeon: Always flush the VM
drm/radeon: re-enable PTE/PDE packet for set_page on cayman/TN
drm/radeon: cleanup properly if mmio mapping fails
drm/radeon/evergreen+: don't enable HPD interrupts on eDP/LVDS
drm/radeon: add si tile mode array query v3
drm/radeon: add ring working query
drm/radeon: handle broken disabled rb mask gracefully
drm/radeon: add pcie set/get lanes callbacks for newer asics
drm/radeon: update r600 set/get pcie lane config
drm/radeon/kms: replace *REG32_PCIE_P with *REG32_PCIE_PORT
drm/radeon: remove unused blit remnants from si.c
drm/radeon: add UVD tiling addr config v2
drm/radeon: init UVD clocks to sane defaults
drm/radeon: add set_uvd_clocks callback for r7xx v3
drm/radeon: add set_uvd_clocks callback for SI
drm/radeon: add set_uvd_clocks callback for evergreen
drm/radeon: add set_uvd_clocks callback for ON/LN/TN (v4)
drm/radeon: add radeon_atom_get_clock_dividers helper
drm/radeon: add pm callback for setting uvd clocks
drm/radeon: UVD bringup v8
...
This is slightly cleaned up version of Jerome's patch.
There seems to be an issue tracking the last flush of
the VM which results in hangs in certain cases when
VM is used. For now just flush the VM for every IB.
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=62959https://bugs.freedesktop.org/show_bug.cgi?id=62997
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
PTE/PDE doesn't support a single update (count = 1). We had
previously disabled it since it we were hitting that case which
let to hangs. The PTE/PDE packet is much more efficient for VM
updates where it can be used.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm_add_edid_modes() returns 0 upon failure to find any modes.
Hence check for 0 and not less than 0.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Replaces the "platform_get_resource() for IORESOURCE_IRQ" with
platform_get_resource_byname().
Both in exynos4 and exynos5, FIMD IP has 3 interrupts in the order: "fifo",
"vsync", and "lcd_sys".
But The FIMD driver expects the "vsync" interrupt to be mentioned as the
1st parameter in the FIMD DT node. So to meet this expectation of the
driver, the FIMD DT node was forced to be made by keeping "vsync" as the
1st paramter.
For example in exynos4, the FIMD DT node has interrupt numbers
mentioned as <11, 1> <11, 0> <11, 2> keeping "vsync" as the 1st paramter.
This patch fixes the above mentioned "hack" of re-ordering of the
FIMD interrupt numbers by getting interrupt resource of FIMD by using
platform_get_resource_byname().
Signed-off-by: Vikas Sajjan <vikas.sajjan@linaro.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
patch adds "select OF_VIDEOMODE" and "select FB_MODE_HELPERS" when
EXYNOS_DRM_FIMD config is selected. Also adds the "OF" dependency.
Signed-off-by: Vikas Sajjan <vikas.sajjan@linaro.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Add support for parsing the display-timing node using video helper
function.
The DT node parsing is done only if 'dev.of_node'
exists and the NON-DT logic is still maintained under the 'else' part.
Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
Signed-off-by: Vikas Sajjan <vikas.sajjan@linaro.org>
Acked-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Currently, mode_fixup code doesn't consider the limitations of mixer as it
is implemented inside the hdmi driver. Following fix, moves the mode_fixup
to common drm hdmi driver. To check the mode support, it calls both, mixer
and hdmi check_timing callbacks for a given resolution mode.
This patch is dependent on https://patchwork.kernel.org/patch/2176021/.
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Exynos5 is already using drm_display_mode for timings parameters. Exynos4
is also modifed to use the same. List of supported resolutions and
corresponding timings are removed which helps is enabling some extra
resolutions. It also cleans some of the duplicate code.
Exynos4 and Exynos5 Mixers, work fine for the same range of resolutions. Hence
same condition (to find the supported mode) is applied to both.
More exynos4 phy configs can be added later to extend the mode supprot.
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
/usr/lib/gcc/x86_64-linux-gnu/4.7/include/stddef.h:414:9: sparse: preprocessor token offsetof redefined
include/linux/stddef.h:17:9: this was the original definition
>> drivers/gpu/drm/qxl/qxl_drv.c:49:5: sparse: symbol 'qxl_modeset' was not declared. Should it be static?
Reported-by: kbuild test robot.
Signed-off-by: Dave Airlie <airlied@redhat.com>
The biggest changes are:
* DSI video mode: automatic clock and timing calculation
* Lots of platform data related panel driver cleanups, to prepare for DT
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Merge tag 'omapdss-for-3.10' of git://gitorious.org/linux-omap-dss2/linux into drm-next
Omapdss patches for 3.10 merge window
The biggest changes are:
* DSI video mode: automatic clock and timing calculation
* Lots of platform data related panel driver cleanups, to prepare for DT
* tag 'omapdss-for-3.10' of git://gitorious.org/linux-omap-dss2/linux: (69 commits)
drm/omap: add statics to a few structs
drm/omap: Fix and improve crtc and overlay manager correlation
drm/omap: Take a fb reference in omap_plane_update()
drm/omap: Make fixed resolution panels work
drm/omap: fix modeset_init if a panel doesn't satisfy omapdrm requirements
OMAPDSS: DPI: widen the pck search when using dss fck
OMAPDSS: fix dss_fck clock rate rounding
omapdss: use devm_clk_get()
OMAPDSS: nec-nl8048 panel: Use dev_pm_ops
OMAPDSS: DISPC: Revert to older DISPC Smart Standby mechanism for OMAP5
OMAPDSS: DISPC: Configure doublestride for NV12 when using 2D Tiler buffers
omapdss: Features: Fix some parameter ranges
omapdss: DISPC: add max pixel clock limits for LCD and TV managers
OMAPDSS: DSI: Use devm_clk_get()
drivers: video: omap2: dss: Use PTR_RET function
OMAPDSS: VENC: remove platform_enable/disable calls
OMAPDSS: n8x0 panel: remove use of platform_enable/disable
OMAPDSS: n8x0 panel: handle gpio data in panel driver
OMAPDSS: picodlp panel: remove platform_enable/disable callbacks
OMAPDSS: picodlp panel: handle gpio data in panel driver
...
Userspace is free to pass in any command bits it feels like through the
ioctl cmd, and for example trinity likes to fuzz those bits to create
conflicting commands. So instead of relying upon userspace to pass along
the correct IN/OUT flags for the ioctl, use the flags as expected by the
kernel.
This does have a side-effect that NULL pointers can not be substituted
by userspace in place of a struct. This feature was not being used by
any driver, but instead exposed all of the command handlers to a user
triggerable OOPS.
Reported-by: Tommi Rantala <tt.rantala@gmail.com>
Link: http://lkml.kernel.org/r/CA+ydwtpuBvbwxbt-tdgPUvj1EU7itmCHo_2B3w13HkD5+jWKow@mail.gmail.com
Signed-off-by: Tommi Rantala <tt.rantala@gmail.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
(*->vm_end - *->vm_start) >> PAGE_SHIFT operation is implemented
as a inline funcion vma_pages() in linux/mm.h, so using it.
Signed-off-by: Libin <huawei.libin@huawei.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Property blob objects need to be destroyed when cleaning up to avoid
memory leaks. Go through the list of all blobs in the
drm_mode_config_cleanup() function and destroy them.
The drm_mode_config_cleanup() function needs to be moved after the
drm_property_destroy_blob() declaration. Move drm_mode_config_init() as
well to keep the functions together.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Daniel writes:
Since I expect Linus to open the merge window in about a week I guess this
is the last i915 feature pull for 3.10. Highlights:
Updated testing tree for -next. Highlights:
- Corner case fixes discovered with static analyzers (Damien).
- More fixes to combat unclaimed register errors on Haswell (Paulo).
- Some small fixes to the gpu turbo code (Rodrigo+Ben), Ben has more
fixes for overclocking support pending.
- More prep work for fastboot from Chris.
- VT-switchless suspend/resume from Jesse.
- The prep work of Egbert Eich's hpd irq storm handling. Hopefully we can
squeeze in the actual storm handling code for 3.10 ...
- More convenience helpers for Imre's sg iterator. Core parts acked by
Andrew Morton.
- A bit of backlight code cleanup from Jani.
- Fixed ilk gpu reset (Jesse).
- Reduced color range handling fixes for VLV (Ville).
The big item here is though the introduction of pipe_config to properly
pre-compute the desired modeset state before touching the hw. Together
with some very basic support to read out the current config from the hw
and compare the state with the sw tracking. This is all prep work for more
reliable fastboot, atomic modesets and other cool features. Stuff
converted to the new world includes:
- Most simple pipe attributes (reduce color range, pixel multiplier).
- Pipe bpp/dither handling.
- Some convenience flags like ->has_pch_encoder to simplify the code flow.
- (Almost) DP clock handling, had to be reverted since part of a prep
patch was lost in rebasing ...
Expect a lot of patches for this throughout 3.11, there's tons of work
till we have all state properly tracked for fastbooting to woExpect a lot
of patches for this throughout 3.11, there's tons of work till we have all
state properly tracked for fastbooting to work.
For 3.10 I have a bunch of fixes queued up and I plan to send them all out
at the end of this week. I need to shuffle patches in my -next queue a bit
so that we don't but feature-y stuff in there, too. The main thing I'd
like to sneak in is Egbert's hpd irq storm handling, which should be
pretty low-risk since all the infrastructure work has landed already. I
also have the oops fix pending, but that only mustered review before the
w/e and giving how hairy that part of our modeset code is, I want to give
it some more testing before forwarding.
Note: annarchy.fd.o seems to run out of disk space, so couldn't push the
usual for-airlied branch. Tag should work though.
Note 2: I've had to do a backmerge since conflicts grew too ugly, but the
upstream -rc I've backmerged is already in your drm-next.
* tag 'drm-intel-next-2013-04-06' of git://people.freedesktop.org/~danvet/drm-intel: (75 commits)
drm/i915: info level for simulated gpu hang dmesg notice
drm/i915: revert eDP bpp clamping code changes
Revert "drm/i915: fix DP get_hw_state return value"
drm/i915: Don't use the HDMI port color range bit on Valleyview
drm/i915: Set PIPECONF color range bit on Valleyview
drm/i915: extract i9xx_set_pipeconf
drm/i915: Add no-lvds quirk for Fujitsu Esprimo Q900
drm/i915: create pipe_config->dpll for clock state
drm/i915: hw readout support for ->has_pch_encoders
drm/i915: add hw state readout/checking for pipe_config
drm/i915: rip out superflous is_dp&is_cpu_edp tracking
drm/i915: remove leaky eDP functions
drm/i915: track dp target_clock in pipe_config
drm/i915: move dp_m_n computation to dp_encoder->compute_config
drm/i915: clear up the fdi/dp set_m_n confusion
drm/i915: Fix sdvo connector get_hw_state function
drm/i915: drop DPFLIPSTAT enables on VLV v3
drm/i915: add Punit read/write routines for VLV v2
drm/i915: panel power sequencing for VLV eDP v2
drm/i915/dp: fix up VLV DP handling v2
...
This patch fixes a bug introduced by:
commit 749387dc8d
Author: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Date: Sun Apr 7 16:35:50 2013 +0200
drm/gma500: Fix hibernation problems on sdvo encoders
The bug is triggered when we do a mode set on a sdvo encoder with all
connectors in the disconnected state. A crtc is considered enabled by
drm even though all of its connectors are disconnected. Work around
this by adding a check in our sdvo restore function.
Also remove the unneeded dpms on. Prepare and Commit will take care of
that.
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Driver's and ->fill_modes functions are allowed to grab crtc mutexes
(for e.g. load detect). Hence we need to first only grab the general
kms mutex, and only in a second step grab all locks to do the
modesets.
This prevents a deadlock on my gm45 in the tv load detect code called
by drm_helper_probe_single_connector_modes.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
drm_framebuffer_lookup() does a kref_get() for the framebuffer if it finds one
corresponding to the fb id passed to it. Use drm_framebuffer_reference() instead
for clarity since it's the function used in other places to take a reference.
Signed-off-by: Archit Taneja <archit@ti.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
The 1600x1200 (UXGA) screen resolution was lacking in the set of
built-in selectable EDID screen resolutions that can be used to
repair misbehaving monitor firmware.
This patch adds the related data set and expands the documentation.
Signed-off-by: Carsten Emde <C.Emde@osadl.org>
Acked-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
QXL is a paravirtual graphics device used by the Spice virtual desktop
interface.
The drivers uses GEM and TTM to manage memory, the qxl hw fencing however
is quite different than normal TTM expects, we have to keep track of a number
of non-linear fence ids per bo that we need to have released by the hardware.
The releases are freed from a workqueue that wakes up and processes the
release ring.
releases are suballocated from a BO, there are 3 release categories, drawables,
surfaces and cursor cmds. The hw also has 3 rings for commands, cursor and release handling.
The hardware also have a surface id tracking mechnaism and the driver encapsulates it completely inside the kernel, userspace never sees the actual hw surface
ids.
This requires a newer version of the QXL userspace driver, so shouldn't be
enabled until that has been placed into your distro of choice.
Authors: Dave Airlie, Alon Levy
v1.1: fixup some issues in the ioctl interface with padding
v1.2: add module device table
v1.3: fix nomodeset, fbcon leak, dumb bo create, release ring irq,
don't try flush release ring (broken hw), fix -modesetting.
v1.4: fbcon cpu usage reduction + suitable accel flags.
Signed-off-by: Alon Levy <alevy@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
qxl wants to use io mapping like i915 gem does, for now
just export the symbols so the driver can implement atomic
page maps using io mapping.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Allow userspace to query for the tile mode array so userspace can properly
compute surface pitch and alignment requirement depending on tiling.
v2: Make strict aliasing safer by casting to char when copying
v3: merge fix from Christian
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Add new ioctl option and bumb minor version number.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
If the disabled rb mask register is not properly initialized
program a sane default based on the number of RBs for the
asic. This avoids a potential divide by 0 when calculating
the backend mask.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The omapdrm driver currently takes a config/module arg to figure out the number
of crtcs it needs to create. We could create as many crtcs as there are overlay
managers in the DSS hardware, but we don't do that because each crtc eats up
one DSS overlay, and that reduces the number of planes we can attach to a single
crtc.
Since the number of crtcs may be lesser than the number of hardware overlay
managers, we need to figure out which overlay managers to use for our crtcs. The
current approach is to use pipe2chan(), which returns a higher numbered manager
for the crtc.
The problem with this approach is that it assumes that the overlay managers we
choose will connect to the encoders the platform's panels are going to use,
this isn't true, an overlay manager connects only to a few outputs/encoders, and
choosing any overlay manager for our crtc might lead to a situation where the
encoder cannot connect to any of the crtcs we have chosen. For example, an
omap5-panda board has just one hdmi output. If num_crtc is set to 1, with the
current approach, pipe2chan will pick up the LCD2 overlay manager, which cannot
connect to the hdmi encoder at all. The only manager that could have connected
to hdmi was the TV overlay manager.
Therefore, there is a need to choose our overlay managers keeping in mind the
panels we have on that platform. The new approach iterates through all the
available panels, creates encoders and connectors for them, and then tries to
get a suitable overlay manager to create a crtc which can connect to the
encoders.
We use the dispc_channel field in omap_dss_output to retrieve the desired
overlay manager's channel number, we then check whether the manager had already
been assigned to a crtc or not. If it was already assigned to a crtc, we assume
that out of all the encoders which intend use this crtc, only one will run at a
time. If the overlay manager wan't assigned to a crtc till then, we create a
new crtc and link it with the overlay manager.
This approach just looks for the best dispc_channel for each encoder. On DSS HW,
some encoders can connect to multiple overlay managers. Since we don't try
looking for alternate overlay managers, there is a greater possibility that 2
or more encoders end up asking for the same crtc, causing only one encoder to
run at a time.
Also, this approach isn't the most optimal one, it can do either good or bad
depending on the sequence in which the panels/outputs are parsed. The optimal
way would be some sort of back tracking approach, where we improve the set of
managers we use as we iterate through the list of panels/encoders. That's
something left for later.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
When userspace calls SET_PLANE ioctl, drm core takes a reference of the fb and
passes control to the update_plane op defined by the drm driver.
In omapdrm, we have a worker thread which queues framebuffers objects received
from update_plane and displays them at the appropriate time.
It is possible that the framebuffer is destoryed by userspace between the time
of calling the ioctl and apply-worker being scheduled. If this happens, the
apply-worker holds a pointer to a framebuffer which is already destroyed.
Take an extra refernece/unreference of the fb in omap_plane_update() to prevent
this from happening. A reference is taken of the fb passed to update_plane(),
the previous framebuffer (held by plane->fb) is unreferenced. This will prevent
drm from destroying the framebuffer till the time it's unreferenced by the
apply-worker.
This is in addition to the exisitng reference/unreference in update_pin(),
which is taken for the scanout of the plane's current framebuffer, and an
unreference the previous framebuffer.
Signed-off-by: Archit Taneja <archit@ti.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The omapdrm driver requires omapdss panel drivers to expose ops like detect,
set_timings and check_timings. These can be NULL for fixed panel DPI, DBI, DSI
and SDI drivers. At some places, there are no checks to see if the panel driver
has these ops or not, and that leads to a crash.
The following things are done to make fixed panels work:
- The omap_connector's detect function is modified such that it considers panel
types which are generally fixed panels as always connected(provided the panel
driver doesn't have a detect op). Hence, the connector corresponding to these
panels is always in a 'connected' state.
- If a panel driver doesn't have a check_timings op, assume that it supports the
mode passed to omap_connector_mode_valid(the 'mode_valid' drm helper function)
- The function omap_encoder_update shouldn't really do anything for fixed
resolution panels, make sure that it calls set_timings only if the panel
driver has one.
Signed-off-by: Archit Taneja <archit@ti.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
modeset_init iterates through all the registered omapdss devices and has some
initial checks to see if the panel has a driver and the required driver ops for
it to be usable by omapdrm.
The function bails out from modeset_init if a panel doesn't meet the
requirements, and stops the registration of the future panels and encoders which
come after it, that isn't the correct thing to do, we should go through the rest
of the panels. Replace the 'return's with 'continue's.
Signed-off-by: Archit Taneja <archit@ti.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Last version of this patch is not clear enough and X86 duplicated.
This patch fixes build failure of v3.9-rc5 and rc6.
When config ACPI_VIDEO as m, DRM_GMA500 as y, here comes the failure.
GMA5/600 needs acpi_video just like nouveau.
And some tab type fix by the way.
Failure message:
drivers/built-in.o: In function `psb_driver_load':
kernel-3.9-rc5/drivers/gpu/drm/gma500/psb_drv.c:340: \
undefined reference to `acpi_video_register'
make: *** [vmlinux] Error 1
Signed-off-by: Xiong Zhou <jencce.kernel@gmail.com>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
This change properly enables the "requester" in G200ER cards that is
responsible for getting pixels out of memory and clocking them out to
the screen.
Signed-off-by: Christopher Harvey <charvey@matrox.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
The only part of proc_dir_entry the code outside of fs/proc
really cares about is PDE(inode)->data. Provide a helper
for that; static inline for now, eventually will be moved
to fs/proc, along with the knowledge of struct proc_dir_entry
layout.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
We use the DMA ring rather than the GFX ring for
bo moves. This code was never used and commented out.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
v2: set UVD tiling config for rv730
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Just until we get proper DPM for that.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Just everything needed to decode videos using UVD.
v6: just all the bugfixes and support for R7xx-SI merged in one patch
v7: UVD_CGC_GATE is a write only register, lockup detection fix
v8: split out VRAM fallback changes, remove support for RV770,
add support for HEMLOCK, add buffer sizes checks
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Let the CS module decide if we can fall back to VRAM or not.
v2: remove unintended change
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
v2: update error message and comment
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This patch allows the CPU to map the stolen vram segment
directly rather than going through the PCI BAR. This
significantly improves performance for certain workloads with
a properly patched ddx.
Use radeon.fastfb=1 to enable it (disabled by default).
Currently only supported on RS690, but support for RS780/880
and newer APUs may be added eventually.
Signed-off-by: Samuel Li <samuel.li@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Add a per-asic MC (memory controller) mask which holds the
mak address mask the asic is capable of. Use this when
calculating the vram and gtt locations rather using asic
specific functions or limiting everything to 32 bits.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
too many semicolons.
* 'drm-nouveau-fixes-3.9' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
drm/nouveau: fix unconditional return waiting on memory
Typo in nv50_display_flip_wait allows page flipping to run ahead before
memory has time to settle.
Signed-off-by: Calvin Owens <jcalvinowens@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
FIXME: This is based on some HW being used for a demo. We should
probably wait until we have confirmation on the IDs before upstreaming
this patch.
v2: Use GEN7_FEATURES (Chris)
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Set up PCH_NOP when we match a certain platform.
v2: Just do a num_pipes check + comment instead of trying to check the
platform (Daniel)
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
BIOS should be setting this, but in case it doesn't...
v2: Define the bits we actually want to clear (Jesse)
Make it an RMW op (Jesse)
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Interrupts, clock gating, LVDS, and GMBUS are all within the, "this will
be bad for CPU" range when we have PCH_NOP.
There is a bit of a hack in init clock gating. We want to do most of the
clock gating, but the part we skip will hang the system. It could
probably be abstracted a bit better, but I don't feel it's too
unsightly.
v2: Use inverse HAS_PCH_NOP check (Jani)
v3: Actually do what I claimed in v2 (spotted by Daniel)
Merge Ivybridge IRQ handler PCH check to decrease whitespace (Daniel)
Move LVDS bail into this patch (Ben)
v4: logical rebase conflict resolution with SDEIIR (Ben)
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Brush up patch a bit and resolve conflicts:
- Adjust PCH_NOP checks due to Egbert's hpd handling rework.
- Addd a PCH_NOP check in the irq uninstall code.
- Resolve conflicts with Paulo's SDE irq handling race fix.
v5: Drop the added hunks in the ilk irq handler again, they're bogus.
OOps.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Doesn't affect anything as the same address gets written
in both cases.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
The state of the SDVO chip is more difficult to save than the LVDS so we do a
full mode set on the crtc to get SDVO operational again. The SDVOB/C register is
also stored just in case we have special bits set in the future.
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Currently we do whatever is done during suspend/resume but we might need some
more work for hibernation so keep them in separate functions.
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
This patch activates the rebuilding of the gtt. Currently we reinitialize the
gtt by inserting the stolen pages again and map the rest to our scratch page.
Then we go about restoring the needed ranges. This is a bit overkill but right
now we don't have that much to restore so better safe than sorry.
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Given certain fusing options discussed in the previous patch, it's
possible to end up with platforms that normally have PCH but that PCH
doesn't actually exist. In many cases, this is easily remedied with
setting 0 pipes. This covers the other corners.
Requiring this is a symptom of improper code splitting (using
HAS_PCH_SPLIT instead of proper GEN checking, basically). I do not want
to fix this.
v2: Remove PCH reflck after change in previous patch (Daniel)
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
GEN supports a fusing option which subtracts the PCH display (making the
CPU display also useless). In this configuration MMIO which gets decoded
to a certain range will hang the CPU.
For us, this is sort of the equivalent of having no pipes, and we can
easily modify some code to not do certain things with no pipes.
v2: Moved the num pipes check up in the call chain, and removed extra
checks noted by Daniel. For more details, see:
http://lists.freedesktop.org/archives/intel-gfx/2013-March/025746.html
v3: Drop the intel_setup_overlay check (Daniel)
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Otherwise running igt will fill your dmesg with hang notices and it's
hard to judge from a quick look whether they're expected or not.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
ASPM
Revert "PCI/ACPI: Request _OSC control before scanning PCI root bus"
kexec
PCI: Don't try to disable Bus Master on disconnected PCI devices
Platform ROM images
PCI: Add PCI ROM helper for platform-provided ROM images
nouveau: Attempt to use platform-provided ROM image
radeon: Attempt to use platform-provided ROM image
Hotplug
PCI/ACPI: Always resume devices on ACPI wakeup notifications
PCI/PM: Disable runtime PM of PCIe ports
EISA
EISA/PCI: Fix bus res reference
EISA/PCI: Init EISA early, before PNP
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Merge tag 'pci-v3.9-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
"PCI updates for v3.9:
ASPM
Revert "PCI/ACPI: Request _OSC control before scanning PCI root bus"
kexec
PCI: Don't try to disable Bus Master on disconnected PCI devices
Platform ROM images
PCI: Add PCI ROM helper for platform-provided ROM images
nouveau: Attempt to use platform-provided ROM image
radeon: Attempt to use platform-provided ROM image
Hotplug
PCI/ACPI: Always resume devices on ACPI wakeup notifications
PCI/PM: Disable runtime PM of PCIe ports
EISA
EISA/PCI: Fix bus res reference
EISA/PCI: Init EISA early, before PNP"
* tag 'pci-v3.9-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI/PM: Disable runtime PM of PCIe ports
PCI/ACPI: Always resume devices on ACPI wakeup notifications
PCI: Don't try to disable Bus Master on disconnected PCI devices
Revert "PCI/ACPI: Request _OSC control before scanning PCI root bus"
radeon: Attempt to use platform-provided ROM image
nouveau: Attempt to use platform-provided ROM image
EISA/PCI: Init EISA early, before PNP
EISA/PCI: Fix bus res reference
PCI: Add PCI ROM helper for platform-provided ROM images
The behaviour around handling the eDP bpp value from vbt has been
slightly changed in
commit 3600836585
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed Mar 27 00:44:59 2013 +0100
drm/i915: convert DP autodither code to new infrastructure
The old behaviour was that we used the plane's bpp (usually 24bpp) for
computing the dp link bw, but set up the pipe with the bpp value from
vbt if available. This takes the vbt bpp override into account even
for the dp link bw configuration.
On Paulo's hsw machine this resulted in a slower link clock and a
black screen - but the mode actually /should/ fit even with the lower
clock. Until we've cleared up simply stay bug-for-bug compatible with
the old code.
While at it, also restore a debug message lost in:
commit 4e53c2e010
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed Mar 27 00:44:58 2013 +0100
drm/i915: precompute pipe bpp before touching the hw
Cc: Paulo Zanoni <przanoni@gmail.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This reverts commit deb18211a1.
It completely breaks the logic, since when we fall through to the end
of the function we actually _have_ figured out the correct pipe.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
VLV docs still list the the color range selection bit for the HDMI
ports, but for DP ports it has been repurposed.
I have no idea whether the HDMI color range selection bit still works
on VLV, but since we now have to use the PIPECONF color range bit for
DP, we might as well do the same for HDMI.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
VLV has the color range selection bit in the PIPECONF register.
Configure it appropriately.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
[danvet: fixup rebase issues due to slightly different baseline.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The "Mobile Sandy Bridge CPUs" in the Fujitsu Esprimo Q900
mini desktop PCs are probably misleading the LVDS detection
code in intel_lvds_supported. Nothing is connected to the
LVDS ports in these systems.
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel writes:
Highlights:
- Imre's for_each_sg_pages rework (now also with the stolen mem backed
case fixed with a hack) plus the drm prime sg list coalescing patch from
Rahul Sharma. I have some follow-up cleanups pending, already acked by
Andrew Morton.
- Some prep-work for the crazy no-pch/display-less platform by Ben.
- Some vlv patches, by far not all (Jesse et al).
- Clean up the HDMI/SDVO #define confusion (Paulo)
- gen2-4 vblank fixes from Ville.
- Unclaimed register warning fixes for hsw (Paulo). More still to come ...
- Complete pageflips which have been stuck in a gpu hang, should prevent
stuck gl compositors (Ville).
- pm patches for vt-switchless resume (Jesse). Note that the i915 enabling
is not (yet) included, that took a bit longer to settle. PM patches are
acked by Rafael Wysocki.
- Minor fixlets all over from various people.
* tag 'drm-intel-next-2013-03-23' of git://people.freedesktop.org/~danvet/drm-intel: (79 commits)
drm/i915: Implement WaSwitchSolVfFArbitrationPriority
drm/i915: Set the VIC in AVI infoframe for SDVO
drm/i915: Kill a strange comment about DPMS functions
drm/i915: Correct sandybrige overclocking
drm/i915: Introduce GEN7_FEATURES for device info
drm/i915: Move num_pipes to intel info
drm/i915: fixup pd vs pt confusion in gen6 ppgtt code
style nit: Align function parameter continuation properly.
drm/i915: VLV doesn't have HDMI on port C
drm/i915: DSPFW and BLC regs are in the display offset range
drm/i915: set conservative clock gating values on VLV v2
drm/i915: fix WaDisablePSDDualDispatchEnable on VLV v2
drm/i915: add more VLV IDs
drm/i915: use VLV DIP routines on VLV v2
drm/i915: add media well to VLV force wake routines v2
drm/i915: don't use plane pipe select on VLV
drm: modify pages_to_sg prime helper to create optimized SG table
drm/i915: use for_each_sg_page for setting up the gtt ptes
drm/i915: create compact dma scatter lists for gem objects
drm/i915: handle walking compact dma scatter lists
...
By having 'drm' and 'fb' in the fb screeninfo id, pm-utils will leave us
alone. Otherwise we'll have quirks up to our ears and resume will break.
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Clock computations and handling are highly encoder specific, both in
the optimal clock selection and also in which clocks to use and when
sharing of clocks is possible.
So the best place to do this is somewhere in the encoders, with a
generic fallback for those encoders without special needs. To facility
this, add a pipe_config->clocks_set boolean.
This patch here is only prep work, it simply sets the computed clock
values in pipe_config->dpll, and uses that data in the hw clock
setting functions.
Haswell code isn't touched, simply because Haswell clocks work much
different and need their own infrastructure (with probably a
Haswell-specific config->ddi_clock substruct).
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Now we can ditch the checks in the Haswell disable code.
v2: add support for Haswell
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We need to be able to read out the hw state code for a bunch
of reasons:
- Correctly disabling boot-up/resume state.
- Pure paranoia.
Since not all of the pipe configuration is e.g. relevant for
fastboot (or at least we can allow some wiggle room in some
parameters, like the clocks), we need to add a strict_checking
parameter to intel_pipe_config_compare for fastboot.
For now intel_pipe_config_compare should be fully paranoid and
check everything that the hw state readout code supports. Which
for this infrastructure code is nothing.
I've gone a bit overboard with adding 3 get_pipe_config functions:
The ilk version will differ with the next patch, so it's not too
onerous.
v2: Don't check the hw config if the pipe is off, since an enabled,
but dpms off crtc will obviously have tons of difference with the hw
state.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The only exception left is is_cpu_edp in the haswell modeset code.
We need that to assign the cpu transcoder, but we might want to
move that eventually into the encoder, too.
\o/-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jesse Barnes noticed in his review of my DP cleanup series that
intel_edp_target_clock is now unused. Checking related code I've
noticed that also intel_edp_link_config is long unused.
Kill them both.
Wrt leaky eDP functions used in the common crtc code, the only thing
still left is intel_encoder_is_pch_edp. That one is just due to the
massive confusion between eDP vs. DP and port A vs. port D. Crtc code
should at most concern itself with the later, never with the former.
But that's material for another patch series.
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We need it in the fdi m_n computation, which nicely kills almost
all ugly special cases in there.
It looks like we also need this to handle 12bpc hdmi correctly.
Eventually it might be better to switch things around and put the
target clock into adjusted_mode->clock and create a new pipe_config
parameter for the port link clock.
v2: Add a massive comment in the code to explain this mess.
v3: s/dp_target_clock/pixel_target_clock in anticipation of the hdmi
use-case.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We need a flag to designate dp encoders and the dp link m_n parameters
in the pipe config for that. And now that the pipe bpp computations
have been moved up and stored in the pipe config, too, we can do this
without losing our sanity.
v2: Rebased on top of Takashi Iwai's fix to (again) fix the target
clock handling for eDP. Luckily the new code is sane enough and just
does the right thing!
v3: Move ->has_dp_encoder to this patch (Jesse).
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
There's a rather decent confusion going on around transcoder m_n
values. So let's clarify:
- All dp encoders need this, either on the pch transcoder if it's a
pch port, or on the cpu transcoder/pipe if it's a cpu port.
- fdi links need to have the right m_n values for the fdi link set in
the cpu transcoder.
To handle the pch vs transcoder stuff a bit better, extract transcoder
set_m_n helpers. To make them simpler, set intel_crtc->cpu_transcoder
als in ironlake_crtc_mode_set, so that gen5+ (where the cpu m_n
registers are all at the same offset) can use it.
Haswell modeset is decently confused about dp vs. edp vs. fdi. dp vs.
edp works exactly the same as dp (since there's no pch dp any more),
so use that as a check. And only set up the fdi m_n values if we
really have a pch encoder present (which means we have a VGA encoder).
On ilk+ we've called ironlake_set_m_n both for cpu_edp and for pch
encoders. Now that dp_set_m_n handles all dp links (thanks to the
pch encoder check), we can ditch the cpu_edp stuff from the
fdi_set_m_n function.
Since the dp_m_n values are not readily available, we need to
carefully coax the edp values out of the encoder. Hence we can't (yet)
kill this superflous complexity.
v2: Rebase on top of the ivb fdi B/C check patch - we need to properly
clear intel_crtc->fdi_lane, otherwise those checks will misfire.
v3: Rebased on top of a s/IS_HASWELL/HAS_DDI/ patch from Paulo Zanoni.
v4: Drop the addition of has_dp_encoder, it's in the wrong patch (Jesse).
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Merge tag 'v3.9-rc5' into drm-intel-next-queued
Backmerge Linux 3.9-rc5 since I want to merge a few dp clock cleanups
for -next, but they will conflict all over the place with
commit 9d1a455b0c
Author: Takashi Iwai <tiwai@suse.de>
Date: Mon Mar 18 11:25:36 2013 +0100
drm/i915: Use the fixed pixel clock for eDP in intel_dp_set_m_n()
from -fixes.
Conflicts:
drivers/gpu/drm/i915/intel_dp.c: Simply adjacent lines changed.
drivers/gpu/drm/i915/intel_panel.c: A field rename in -next
conflicts with a bugfix in -fixes. Take the version from
-fixes and apply the rename.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The active output is only the currently selected one, which does not
imply that it's actually enabled. Since we don't use the sdvo encoder
side dpms support, we need to check whether the chip-side sdvo port is
enabled instead.
v2: Fix up Bugzilla links.
v3: Simplify logic a bit (Chris).
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=60138
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=63031
Cc: Egbert Eich <eich@pdx.freedesktop.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Egbert Eich <eich@pdx.freedesktop.org> (v2)
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
If first drm_open fails, the error-handling path will
incorrectly restore inode's mapping to NULL. This can
cause the crash later on. Fix by separately storing
away mapping pointers that drm_open can touch and
restore each from its own respective variable if the
call fails.
Fixes: https://bugzilla.novell.com/show_bug.cgi?id=807850
(thanks to Michal Hocko for investigating investigating and
finding the root cause of the bug)
Reference:
http://lists.freedesktop.org/archives/dri-devel/2013-March/036564.html
v2: Use one variable to store file and inode mapping
since they are the same at the function entry.
Fix spelling mistakes in commit message.
v3: Add reference to the original bug report.
Reported-by: Marco Munderloh <munderl@tnt.uni-hannover.de>
Tested-by: Marco Munderloh <munderl@tnt.uni-hannover.de>
Signed-off-by: Ilija Hadzic <ihadzic@research.bell-labs.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
One locking regression fix, and a couple of other i915 ones.
* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
drm: don't unlock in the addfb error paths
drm/i915: Fix build failure
drm/i915: Be sure to turn hsync/vsync back on at crt enable (v2)
drm/i915: duct-tape locking when eDP init fails
We don't need this until we start using the wait event commands.
v2: move to i915_irq.c (Jesse)
drop unneeded sprite flip done enables (Ville)
v3: drop the DPFLIPSTAT enables altogether (Ville)
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Slightly different than other platforms.
v2 [Jani]: Fix IOSF_BYTE_ENABLES_SHIFT shift. Use common routine.
v3: drop turbo defines from this patch (Ville)
use PCI_DEVFN(2,0) instead of open coding (Ville)
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
[danvet: Add checkpatch bikeshed about missing space.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Needed to handle pre/post enable/disable paths on VLV and avoid a few
fields that are marked reserved on VLV.
v2: don't set color range or DP PLL fields (Jani)
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Need to make sure sprites are disabled before shutting off a pipe.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
No constant alpha yet though, that needs a new ioctl and/or property to
get/set.
v2: use drm_plane_format_cpp (Ville)
fix up vlv_disable_plane, remove IVB bits (Ville)
remove error path rework (Ville)
fix component order confusion (Ville)
clean up platform init (Ville)
use compute_offset_xtiled (Ville)
v3: fix up more format confusion (Ville)
update to new page offset function (Ville)
v4: remove incorrect formats from framebuffer_init (Ville)
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
If we couldn't find a pipe we shouldn't return true. This might be even
better as a WARN though, since it should be impossible to have the port
enabled without a pipe selected.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
If we couldn't find a pipe we shouldn't return true. This might be even
better as a WARN though, since it should be impossible to have the port
enabled without a pipe selected.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Modifying the clock sources (via the DREF control on the PCH) is a slow
multi-stage process as we need to let the clocks stabilise between each
stage. If we are not actually changing the clock sources, then we can
return early.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
[danvet: Appease checkpatch by deleting a space after a ~]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Both VGA and HDMI connectors are available on my Asus EeePC X101CH.
This patch will cause output to be shown on either when plugged in.
For both, it shows the leftmost 800x600, of the 1024x600 on LVDS.
Signed-off-by: Kero van Gelder <kero@chello.nl>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Earlier code would leave both bits set, so any reset after the first
would only reset media.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
i2c_del_adapter() always returns 0. So all checks testing whether it will be
non zero will always evaluate to false and the conditional code is dead code.
This patch updates all callers of i2c_del_mux_adapter() to ignore the return
value and assume that it will always succeed (which it will). In a subsequent
patch the return type of i2c_del_adapter() will be made void.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Some platforms only provide their PCI ROM via a platform-specific interface.
Fall back to attempting that if all other sources fail.
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Some platforms only provide their PCI ROM via a platform-specific interface.
Fall back to attempting that if all other sources fail.
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Op 23-03-13 12:47, Peter Hurley schreef:
> On Tue, 2013-03-19 at 11:13 -0400, Peter Hurley wrote:
>> On vanilla 3.9.0-rc3, I get this 100% repeatable oops after login when
>> the user X session is coming up:
> Perhaps I wasn't clear that this happens on every boot and is a
> regression from 3.8
>
> I'd be happy to help resolve this but time is of the essence; it would
> be a shame to have to revert all of this for 3.9
Well it broke on my system too, so it was easy to fix.
I didn't even need gdm to trigger it!
>8----
This fixes regression caused by 1d7c71a3e2 (drm/nouveau/disp: port vblank handling to event interface),
which causes a oops in the following way:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000001
IP: [<0000000000000001>] 0x0
PGD 0
Oops: 0010 [#1] PREEMPT SMP
Modules linked in: ip6table_filter ip6_tables ebtable_nat ebtables ...<snip>...
CPU 3
Pid: 0, comm: swapper/3 Not tainted 3.9.0-rc3-xeon #rc3 Dell Inc. Precision WorkStation T5400 /0RW203
RIP: 0010:[<0000000000000001>] [<0000000000000001>] 0x0
RSP: 0018:ffff8802afcc3d80 EFLAGS: 00010087
RAX: ffff88029f6e5808 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000096 RSI: 0000000000000001 RDI: ffff88029f6e5808
RBP: ffff8802afcc3dc8 R08: 0000000000000000 R09: 0000000000000004
R10: 000000000000002c R11: ffff88029e559a98 R12: ffff8802a376cb78
R13: ffff88029f6e57e0 R14: ffff88029f6e57f8 R15: ffff88029f6e5808
FS: 0000000000000000(0000) GS:ffff8802afcc0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000001 CR3: 000000029fa67000 CR4: 00000000000007e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process swapper/3 (pid: 0, threadinfo ffff8802a355e000, task ffff8802a3535c40)
Stack:
ffffffffa0159d8a 0000000000000082 ffff88029f6e5820 0000000000000001
ffff88029f71aa00 0000000000000000 0000000000000000 0000000004000000
0000000004000000 ffff8802afcc3e38 ffffffffa01843b5 ffff8802afcc3df8
Call Trace:
<IRQ>
[<ffffffffa0159d8a>] ? nouveau_event_trigger+0xaa/0xe0 [nouveau]
[<ffffffffa01843b5>] nv50_disp_intr+0xc5/0x200 [nouveau]
[<ffffffff816fbacc>] ? _raw_spin_unlock_irqrestore+0x2c/0x50
[<ffffffff816ff98d>] ? notifier_call_chain+0x4d/0x70
[<ffffffffa017a105>] nouveau_mc_intr+0xb5/0x110 [nouveau]
[<ffffffffa01d45ff>] nouveau_irq_handler+0x6f/0x80 [nouveau]
[<ffffffff810eec95>] handle_irq_event_percpu+0x75/0x260
[<ffffffff810eeec8>] handle_irq_event+0x48/0x70
[<ffffffff810f205a>] handle_fasteoi_irq+0x5a/0x100
[<ffffffff810182f2>] handle_irq+0x22/0x40
[<ffffffff8170561a>] do_IRQ+0x5a/0xd0
[<ffffffff816fc2ad>] common_interrupt+0x6d/0x6d
<EOI>
[<ffffffff810449b6>] ? native_safe_halt+0x6/0x10
[<ffffffff8101ea1d>] default_idle+0x3d/0x170
[<ffffffff8101f736>] cpu_idle+0x116/0x130
[<ffffffff816e2a06>] start_secondary+0x251/0x258
Code: Bad RIP value.
RIP [<0000000000000001>] 0x0
RSP <ffff8802afcc3d80>
CR2: 0000000000000001
---[ end trace 907323cb8ce6f301 ]---
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
If there are no channels, chan would never end up being NULL,
and so the null pointer check would fail.
Solve this by initializing chan to NULL, and iterating over temp instead.
Fixes oops when running intel-gpu-tools/tests/kms_flip, which attempts to
do some intel ioctl's on a nouveau device.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: stable@vger.kernel.org [3.7+]
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ville pointed out that my assumption that no unsupported pixel format
can get past the pipe config computation stage to the platform
update_plane callbacks is wrong. The reason is that this function
still checks the old fb->depth value instead of the new pixel_format.
While checking with all the other places that use this I've noticed
that intel_framebuffer_init already has all the platform checks we
need, so replace those checks with a WARN_ON.
Since fb->depth isn't set for YUV pixel formats and since we already
can't create an fb with an rgb layout not support on the running
platform I /think/ this patch doesn't fix any bug.
But it surely looks better!
v2: BGR formats are also only gen4+, so add the corresponding WARN_ON,
too (Ville).
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We've mostly switched over to the new more flexible schema, but
there's one check left in the modeset code.
Motivated by a question from Ville whether there's really no way an
unsupported pixel_format can escape into our platform update_plane
callbacks.
v2: Ville noticed that the fb->depth check is redudant when we already
check fb->pixel_format.
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
As Thomas Gleixner spotted, it's rather horrible racy:
- We can miss almost a full tick, so need to compensate by 1 jiffy.
- We need to re-check the condition when having timed-out, since a
the last check could have been before the timeout expired. E.g. when
we've been preempted or a long irq happened.
Cc: Thomas Gleixner <tglx@linutronix.de>
Reported-by: Jack Winter <jbh@alchemy.lu>
Cc: Jack Winter <jbh@alchemy.lu>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Since
commit bcf9dcc1e6
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Sun Jul 15 09:42:38 2012 +0100
drm/i915: Workaround hang with BSD and forcewake on SandyBridge
and
commit 0cc2764cc4
Author: Ben Widawsky <ben@bwidawsk.net>
Date: Sat Sep 1 22:59:48 2012 -0700
drm/i915: use cpu_relax() in wait_for_atomic
these two macros are essentially the same, so unify them. We keep the
_us version since it's a nice documentation for smaller timeouts.
v2: Fixup time unit conversion, _wait_for takes ms (Ville).
Cc: Jack Winter <jbh@alchemy.lu>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
- It's a static function
- I just added a few more users to it
- Its sister ironlake_enable_display_irq is not marked as inline
- The compiler will still inline if it thinks it should do
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
- gen4 and earlier (save for g4x) only really have a 8bpc pipe, with
the possibility to dither to 6bpc using the panel fitter
- g4x has hdmi, but no 12 bpc pipe ... !? Clamp hdmi accordingly.
- TV/SDVO out are the only connectors available on platforms with
a pipe bpp != 8, add code to force the pipe to 8bpc unconditionally.
<rant>
The dither handling on gmch platforms is one giant disaster. I'm hoping
somewhat that vlv enabling will fix this up, but given that the 6bpc
handling for edp was simply added with another quick hack, I don't have
high hopes ...
</rant>
v2: Neither vlv nor g4x have 12bpc pipes. Still set pipe_bpp to 12*3,
but let the crtc code clamp things down to 10bpc on these platforms.
v3: Fix a bpc vs. bpp mixup in the gen4 and earlier pipe_bpp limiter
code.
v4: Drop the hunk in intel_hdmi.c about g4x/vlv 12bpc, it was wrong.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
- There is no 16bpc linear color format in our hw. gen4+ has a 16 bpc
float layout, but we don't really support it.
- 10bpc is a gen4+ feature, fix up the support for it.
- Update_plane should never see a wrong fb bpp value, BUG in the
corresponding cases.
v2: Rebase on top of Ville's plane pixel layout changes.
v3: Actually drop the old gen4 check for 10bpc planes, spotted
by Ville Syrjälä.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The old code only handled either 6bpc or 8bpc. Since it's easy to do,
reorganize the code to be a bit more generic so that it can also handle
10bpc and 12bpc. Note that we still start with 8bpc, so there's no
functional change.
Also, since we no don't need to compute the 6BPC flag in the mode_valid
callback, we can consolidate things a bit. That requires though that
the link bw computation is moved up in the compute_config callback.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The procedure has now 3 steps:
1. Compute the bpp that the plane will output, this is done in
pipe_config_set_bpp and stored into pipe_config->pipe_bpp. Also,
this function clamps the pipe_bpp to whatever limit the EDID of any
connected output specifies.
2. Adjust the pipe_bpp in the encoder and crtc functions, according to
whatever constraints there are.
3. Decide whether to use dither by comparing the stored plane bpp with
computed pipe_bpp.
There are a few slight functional changes in this patch:
- LVDS connector are now also going through the EDID clamping. But in
a 2nd change we now unconditionally force the lvds bpc value - this
shouldn't matter in reality when the panel setup is consistent, but
better safe than sorry.
- HDMI now forces the pipe_bpp to the selected value - I think that's
what we actually want, since otherwise at least the pixelclock
computations are wrong (I'm not sure whether the port would accept
e.g. 10 bpc when in 12bpc mode). Contrary to the old code, we pick
the next higher bpc value, since otherwise there's no way to make
use of the 12 bpc mode (since the next patch will remove the 12bpc
plane format, it doesn't exist).
Both of these changes are due to the removal of the
pipe_bpp = min(display_bpp, plane_bpp);
statement.
Another slight change is the reworking of the dp bpc code:
- For the mode_valid callback it's sufficient to only check whether
the mode would fit at the lowest bpc.
- The bandwidth computation code is a bit restructured: It now walks
all available bpp values in an outer loop and the codeblock that
computes derived values (once a good configuration is found) has been
moved out of the for loop maze. This is prep work to allow us to
successively fall back on bpc values, and also correctly support bpc
values != 8 or 6.
v2: Rebased on top of Paulo Zanoni's little refactoring to use more
drm dp helper functions.
v3: Rebased on top of Jani's eDP bpp fix and Ville's limited color
range work.
v4: Remove the INTEL_MODE_DP_FORCE_6BPC #define, no longer needed.
v5: Remove intel_crtc->bpp, too, and fix up the 12bpc check in the
hdmi code. Also fixup the bpp check in intel_dp.c, it'll get reworked
in a later patch though again.
v6: Fix spelling in a comment.
v7: Debug output improvements for the bpp computation.
v8: Fixup 6bpc lvds check - dual-link and 8bpc mode are different
things!
v9: Reinstate the fix to properly ignore the firmware edp bpp ... this
was lost in a rebase.
v10: Both g4x and vlv lack 12bpc pipes, so don't enforce that we have
that. Still unsure whether this is the way to go, but at least 6bpc
for a 8bpc hdmi output seems to work.
v11: And g4x/vlv also lack 12bpc hdmi support, so only support high
depth on DP. Adjust the code.
v12: Rebased.
v13: Split out the introduction of pipe_config->dither|pipe_bpp, as
requested from Jesse Barnes.
v14: Split out the special 6BPC handling for DP, as requested by Jesse
Barnes.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We want to compute this earlier. To avoid a big complicated patch,
this patch here just does the big search&replace and still calls the
old functions at the same places.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Now that we have a useful struct for this, let's use it. Some neat
pointer-chasing required, but it's all there already.
v2: Rebased on top of the added Haswell limited color range support.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This is used way too often in the enable/disable paths. And will
be even more useful in the future.
Note that correct semantics of this change highly depend upon
correct updating of intel_crtc->config: Like with all other
modeset state, we need to call ->disable with the old config,
but ->mode_set and ->enable with the new config.
v2: Do not yet use the flag in the ->disable callbacks - atm we don't
yet have support for the information stored in the pipe_config in the
hw state readout code, so this will be wrong at boot-up/resume.
v3: Rebased on top of the hdmi/dp ddi encoder merging.
v4: Fixup stupid rebase error which lead to a NULL vfunc deref.
v5: On haswell the VGA port is on the PCH!
v6: s/IS_HASWELL/HAS_DDI/, spotted by Paulo Zanoni. Also add a missing
parameter name in a function declaration.
v7: Don't forget to git add ...
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Completely unused by now. Separate patch in case I've missed a
place somewhere which dereferences the helper vtable but actually
shouldn't do so.
v2: Resolve rebase conflict with Egbert Eich's hpd infrastructure
rework.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Used by SDVO (and hopefully, eventually HDMI, if we ever get around
to fixing up the low dotclock CEA modes ...).
This required adding a new encoder->mode_set callback to be able to
pass around the intel_crtc_config.
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Only used by the lvds encoder. Note that we shouldn't do the same
simple conversion with the FORCE_6BPC flag, since that's much better
handled by moving all the pipe_bpc computation around.
This requires that we pass the pipe config around to encoders, so
that they can set special attributes and set constraints. To do so
introduce a new ->compute_config encoder callback, which is called in
stead of the drm crtc helper's ->mode_fixup.
To avoid massive churn all over the codebase we don't want to convert
all existing ->mode_fixup functions. Instead I've opted to convert
them on an as-needed basis (mostly to cut down on rebase conflicts and
to have more freedom to experiment around while developing the
patches).
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
To make decent modeset state checking possible (e.g. for the check
mode with atomic modesetting) we want to have the full pipe
configuration and state checks done before we touch the hw.
To ensure that all the little bits&pieces that are now moved to the
pipe_config handle this correctly, move its computation to the right
spot now, before we touch the hw in the disable_pipes step.
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Currently only containing the requested and the adjusted mode. And
only crtc callbacks are converted somewhat to it, encoders will be
done on a as-needed basis (simply too much churn in one patch
otherwise).
Future patches will add tons more useful stuff to this struct,
starting with the very simple.
v2: Store the pipe_config in the intel_crtc, so that the ->mode-set,
->enable and also ->disable have easy access to it.
v3: Store the pipe config in the right crtc ...
v4: Rebased.
v5: Fixup an OOPS when trying to kfree an ERR_PTR.
v6: Used drm_moode_copy and some other small cleanups as suggested
by Ville Syrjälä.
v7: drm_mode_copy preserves the mode id of the destination, so no need
to clear it again (Ville).
v8: Break a long line spotted by Paulo.
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We don't grab the modeset locks any more since
commit 468174f748
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue Dec 11 00:09:12 2012 +0100
drm: push modeset_lock_all into ->fb_create driver callbacks
Reported-by: Ray Strode <rstrode@redhat.com>
Cc: Ray Strode <rstrode@redhat.com>
Cc: Dave Airlie <airlied@gmail.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The backlight device .get_brightness callback is supposed to return the
actual brightness by querying the hardware, not the cached value. See
Documentation/ABI/stable/sysfs-class-backlight. The callback is there to
support the actual_brightness sysfs file.
With the backlight_level and backlight device brightness now in sync, one
can reliably get the cached value through the brightness sysfs file.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
A single point of truth would be better than two, but achieving that would
require more abstractions for CONFIG_BACKLIGHT_CLASS_DEVICE=n with not a
whole lot of real benefits. Take the short route and just keep the
backlight levels in sync. In particular, update backlight device brightness
on opregion brightness changes.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Now with Egbert Eich's hpd infrastructure rework merged this is dead
simple. And we need this to make output detection work on SDVO - with
the cleaned-up drm polling helpers outputs which claim to have hpd
support are no longer polled.
Now SDVO claims to do that, but it's not actually wired up. So just do
it.
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
When disabling a sprite, wait for the sprite to stop fetching data
from memory before unpinning the fb.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Noticed while reviewing the hotplug irq setup code. Just looks better.
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Since for_each_sg_page supports already memory w/o backing pages we can
revert the corresponding workaround.
This reverts commit 5bd4687e57.
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The i915 driver uses sg lists for memory without backing 'struct page'
pages, similarly to other IO memory regions, setting only the DMA
address for these. It does this, so that it can program the HW MMU
tables in a uniform way both for sg lists with and without backing pages.
Without a valid page pointer we can't call nth_page to get the current
page in __sg_page_iter_next, so add a helper that relevant users can
call separately. Also add a helper to get the DMA address of the current
page (idea from Daniel).
Convert all places in i915, to use the new API.
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From the w/a database:
'To prevent false VT-d type 6 error:
The primary display plane must be 256KiB aligned, and require an extra
128 PTEs of padding afterward;
The sprites planes must be 128KiB aligned, and require an extra 64 PTEs
of padding afterward;
The cursors must be 64KiB aligned, and require an extra 2 PTEs of
padding afterward.'
As we use the same function to pin the primary and sprite planes, we can
simply use the more strict requirements for scanouts for both.
Instead of using explicit padding PTEs following the scanout objects, we
should be able to use the scratch page that is always mapped into the
unused PTEs to avoid the VT-d error.
References: https://bugs.freedesktop.org/show_bug.cgi?id=59626
References: https://bugs.freedesktop.org/show_bug.cgi?id=59627
References: https://bugs.freedesktop.org/show_bug.cgi?id=59631
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
[danvet: Apply s/vtd_wa/vtd_scanout_wa/ bikeshed since Damien likes
it, too.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Now since we have replaced the bits to show interest in hotplug IRQs
we can go and nuke the 'hotplug_supported_mask'.
Signed-off-by: Egbert Eich <eich@suse.de>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
After
"Convert HPD interrupts to make use of HPD pin assignment in encoders."
This function is now basically the same as i915_hpd_irq_setup().
Consolidating both functions in one requires one more check for
I915_HAS_HOTPLUG(dev) in the i965 code path and one more check for
IS_G4X(dev) in the i915 code path. These are considered harmless.
Signed-off-by: Egbert Eich <eich@suse.de>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Fixup patch conflict and make it compile.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This fixes a regression introduced in
commit e5868a318d
Author: Egbert Eich <eich@suse.de>
Date: Thu Feb 28 04:17:12 2013 -0500
DRM/i915: Convert HPD interrupts to make use of HPD pin assignment in encode
Due to the irq setup rework in 3.9, see
commit 20afbda209
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue Dec 11 14:05:07 2012 +0100
drm/i915: Fixup hpd irq register setup ordering
Egbert Eich's hpd rework blows up on pch-split platforms - it walks
the encoder list before that has been set up completely. The new init
sequence is:
1. irq enabling
2. modeset init
3. hpd setup
We need to move around the ibx setup a bit to fix this.
Ville Syrjälä pointed out in his review that we can't touch SDEIER
after the interrupt handler is set up, since that'll race with Paulo
Zanoni's PCH interrupt race fix:
commit 44498aea29
Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date: Fri Feb 22 17:05:28 2013 -0300
drm/i915: also disable south interrupts when handling them
We fix that by unconditionally enabling all interrupts in SDEIER, but
masking them as-needed in SDEIMR. Since only the single-threaded
setup/teardown (or suspend/resume) code touches that, no further
locking is required.
While at it also simplify the mask handling - we start out with all
interrupts cleared in the postinstall hook, and never enable a hpd
interrupt before hpd_irq_setup is called.
And finally, for consistency rename the ibx hpd setup function to
ibx_hpd_irq_setup.
v2: Fix race around SDEIER writes (Ville).
v3: Remove the superflous posting read for SDEIER, spotted by Ville.
Ville also wondered whether we shouldn't clear SDEIIR, since now
SDE interrupts are enabled before we have an irq handler installed.
But the master interrupt control bit in DEIER is still cleared, so we
should be fine.
Cc: Egbert Eich <eich@suse.de>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=62798
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
commit f40ebd6bcb
Author: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Date: Tue Mar 5 14:24:48 2013 +0100
drm/i915: Turn off hsync and vsync on ADPA when disabling crt
properly disabled the hsync/vsync logic at disable time, but neglected
to re-enable them at enable time.
v2: In the enable hook, restore the connector's expected DPMS level
instead of forcing ON. Do this by stashing a back pointer to the
connector in the crt (suggested by danvet) since otherwise it's awkward
to look up.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Cc: stable@vger.kernel.org
[danvet: Added more verbose commit citation and cc: stable tag. Also,
make it compile. Then self-lart and try to assign the right pointer.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This allows to enable HPD interrupts for individual pins to only receive
hotplug events from lines which are connected and working.
v2: Restructured initailization of const arrays following a suggstion
by Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Egbert Eich <eich@suse.de>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> (v1)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
To clean up hotplug support we add a new enum to intel_encoder:
enum hpd_pin. It allows the encoder to request a hpd line but leave
the details which IRQ is responsible on which chipset generation
to i915_irq.c.
This way requesting hotplug support will become really simple on
the encoder/connector level.
Signed-off-by: Egbert Eich <eich@suse.de>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This will poke userspace into probing for configuration changes that may
have occurred across suspend/resume.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
With the other bits in place, we can do this safely.
v2: disable backlight on suspend to prevent premature enablement on resume
v3: disable CRTCs on suspend to allow RTD3 (Kristen)
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Needed for VT switchless resume.
v2: cursor state is now handled correctly in crtc_enable (Daniel)
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
To be used to restore sprite state on resume.
v2: move sprite tracking bits up so we don't track modified sprite state
v3: use src_x/y in sprite suspend/resume code (Ville)
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Rather than building a config which may or may not work, let the driver
build an initial fb config. This allows the driver to use the BIOS boot
configuration for example, displaying kernel messages and the initial fb
console on the same outputs the BIOS lit up at boot time. If that
fails, the driver can still fall back the same way as the core.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: dri-devel@lists.freedesktop.org
Acked-by: Dave Airlie <airlied@gmail.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Wrap a preallocated region of stolen memory within an ordinary GEM
object, for example the BIOS framebuffer.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
There is a minute window for a race between put-fence removing the fence
and for a new transaction by an external party on the GTT mmap. That is
we must zap the mmap prior to removing the fence and not afterwards.
Fixes regression from
commit 61050808bb
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue Apr 17 15:31:31 2012 +0100
drm/i915: Refactor put_fence() to use the common fence writing routine
v2: Remember the fence to remove with a local variable (gcc)
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
According to HSW PM programming guide, frequency bits starts at
24 instead of 25.
v2: Paulo Zanoni noticed that only frequency bits can be set at
GEN6_RPNSWREQ. All others are read only.
CC: Ben Widawsky <ben@bwidawsk.net>
CC: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Thanks to apple gpu mux fail we detect an eDP output, but can't read
anything over dp aux. In the resulting failure path we then hit a
paranoid WARN about potential locking.
Since the WARN is pretty useful for normal operation just paper over
it in the failure case by grabbing the demanded (but for init/teardown
not really required) lock.
I've checked our driver unload code and we already don't hold the kms
lock when calling drm_mode_config_cleanup. So this won't lead to a new
deadlock when reloading i915.ko.
v2: Make it compile.
Reported-by: Dave Airlie <airlied@gmail.com>
Cc: Dave Airlie <airlied@gmail.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
If TRANS_DDI_FUNC_CTL has been wrongly programmed with an incorrect
port, we are currently trying to read PORT_CLK_SEL(port) with an
uninitialized value.
Handle that case by returning PORT_CLK_SEL_NONE and warning about it.
v2: Move the warning inside intel_ddi_get_crtc_pll (Paulo Zanoni)
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
HSW doesn't overclock the same way as IVB or SNB. I do not know about
VLV, so I've kept that off as well. I'm still working on getting the doc
updates to explain how we overclock on Haswell.
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: Add missing () spotted by Wu Fengguang's kernel build robot.
Acked by Ben.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel writes:
"Just three revert/disable by default patches, one of them cc: stable
(since the offending commit was cc: stable, too)."
* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
Revert "drm/i915: write backlight harder"
drm/i915: don't disable the power well yet
Revert "drm/i915: set TRANSCODER_EDP even earlier"
Inki writes:
Includes bug fixes and code cleanups.
And it considers some restrictions to G2D hardware.
With this, the malfunction and page fault issues to g2d driver
would be fixed.
* 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
drm/exynos: Check g2d cmd list for g2d restrictions
drm/exynos: Add a new function to get gem buffer size
drm/exynos: Deal with g2d buffer info more efficiently
drm/exynos: Clean up some G2D codes for readability
drm/exynos: Fix G2D core malfunctioning issue
drm/exynos: clear node object type at gem unmap
drm/exynos: Fix error routine to getting dma addr.
drm/exynos: Replaced kzalloc & memcpy with kmemdup
drm/exynos: fimd: calculate the correct address offset
drm/exynos: Make mixer_check_timing static
drm/exynos: modify the compatible string for exynos fimd
This patch updates the internal operations of acpi_device_set_id()
to setup acpi_device_pnp without using acpi_device. There is no
functional change to acpi_device_set_id() in this patch.
acpi_pnp_type is added to acpi_device_pnp, so that PNPID type is
self-contained within acpi_device_pnp. acpi_add_id(), acpi_bay_match(),
acpi_dock_match(), acpi_ibm_smbus_match() and acpi_is_video_device()
are changed to take acpi_handle as an argument, instead of acpi_device.
Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This reverts commit cf0a6584aa.
Turns out that cargo-culting breaks systems. Note that we can't revert
further, since
commit 770c12312a
Author: Takashi Iwai <tiwai@suse.de>
Date: Sat Aug 11 08:56:42 2012 +0200
drm/i915: Fix blank panel at reopening lid
fixed a regression in 3.6-rc kernels for which we've never figured out
the exact root cause. But some further inspection of the backlight
code reveals that it's seriously lacking locking. And especially the
asle backlight update is know to get fired (through some smm magic)
when writing specific backlight control registers. So the possibility
of suffering from races is rather real.
Until those races are fixed I don't think it makes sense to try
further hacks. Which sucks a bit, but sometimes that's how it is :(
References: http://www.mail-archive.com/intel-gfx@lists.freedesktop.org/msg18788.html
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=47941
Tested-by: Takashi Iwai <tiwai@suse.de>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: stable@vger.kernel.org (the reverted commit was cc: stable, too)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We're still not 100% ready to disable the power well, so don't disable
it for now. When we disable it we break the audio driver (because some
of the audio registers are on the power well) and machines with eDP on
port D (because it doesn't use TRANSCODER_EDP).
Also, instead of just reverting the code, add a Kernel option to let
us disable it if we want. This will allow us to keep developing and
testing the feature while it's not enabled.
This fixes problems caused by the following commit:
commit d6dd9eb1d9
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue Jan 29 16:35:20 2013 -0200
drm/i915: dynamic Haswell display power well support
References: http://www.mail-archive.com/intel-gfx@lists.freedesktop.org/msg18788.html
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Mengdong Lin <mengdong.lin@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This reverts commit cc464b2a17.
The reason is that Takashi Iwai reported a regression bisected to this
commit:
http://www.mail-archive.com/intel-gfx@lists.freedesktop.org/msg18788.html
His machine has eDP on port D (usual desktop all-in-on setup), which
intel_dp.c identifies as an eDP panel, but the hsw ddi code
mishandles.
Closer inspection of the code reveals that haswell_crtc_mode_set also
checks intel_encoder_is_pch_edp when setting is_cpu_edp. On haswell
that doesn't make much sense (since there's no edp on the pch), but
what this function _really_ checks is whether that edp connector is on
port A or port D. It's just that on ilk-ivb port D was on the pch ...
So that explains why this seemingly innocent change killed eDP on port
D. Furthermore it looks like everything else accidentally works, since
we've never enabled eDP on port D support for hsw intentionally (e.g.
we still register the HDMI output for port D in that case).
But in retrospective I also don't like that this leaks highly platform
specific details into common code, and the reason is that the drm
vblank layer sucks. So instead I think we should:
- move the cpu_transcoder into the dynamic pipe_config tracking (once
that's merged).
- fix up the drm vblank layer to finally deal with kms crtc objects
instead of int pipes.
v2: Pimp commit message with the better diagnosis as discussed with
Paulo on irc.
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
When KMS has parsed an EDID "detailed timing", it leaves the frame rate
zeroed. Consecutive (debug-) output of that mode thus yields 0 for
vsync. This simple fix also speeds up future invocations of
drm_mode_vrefresh().
While it is debatable whether this qualifies as a -stable fix I'd apply
it for consistency's sake; drm_helper_probe_single_connector_modes()
does the same thing already for all probed modes.
Cc: stable@vger.kernel.org
Signed-off-by: Torsten Duwe <duwe@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
EDID spreads some values across multiple bytes; bit-fiddling is needed
to retrieve these. The current code to parse "detailed timings" has a
cut&paste error that results in a vsync offset of at most 15 lines
instead of 63.
See
http://en.wikipedia.org/wiki/EDID
and in the "EDID Detailed Timing Descriptor" see bytes 10+11 show why
that needs to be a left shift.
Cc: stable@vger.kernel.org
Signed-off-by: Torsten Duwe <duwe@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
So don't read it when capturing the error state. This solves
"unclaimed register" messages on Haswell when we have a GPU hang.
V2: Check for HAS_PCH_SPLIT instead of Gen5+ because VLV still has
this register.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
So don't read it when capturing the error state. This solves some
"unclaimed register" messages on Haswell when we hang the GPU.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The first version of commit "drm/i915: there's no DSPADDR register on
Haswell" added 2 "!IS_HASWELL" checks. When reviewing the patch, Ben
suggested to make these checks more future-proof, so when Daniel
applied the patch he fixed the first check but not the second. This
commit makes the second check also "future-proof".
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The port number should always be correctly set. Do the same thing as the
switch above and use BUG() to signal that branch is not supposed to be
taken.
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We are really talking about the transcoder function here and the disable
version uses trancoder in its name already, so let's try to be
consistent.
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
In the case where the hardware has been wrongly programmed and the EDP
TRANS_DDI_FUNC_CTL register has a bogus value in its EDP Input field, we
were using the pipe variable uninitialized.
In this case, shutdown the transcoder. It will be programmed correctly
the next time we try to enabled eDP.
Note from Paulo's review: Wrong modeset sequence can easily lead to
frozen machines hence the disable_ddi call might be risky. But since
things are awry already, doesn't matter too much.
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
[danvet: Add note about Paulo's caution about potential hangs.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Our static analysis tool noticed that 'reg' could be used uninitialized if
we are trying to get a PLL to drive VGA and SPLL is already in use
(plls->spll_refcoung != 0).
In the (error) case above, let's return false to the caller and emit an
error.
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Bspec mentions this for HSW+. I can't quite tell what the effects are,
and I don't easily have a way to test this.
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We do this for HDMI already, so I don't know why we wouldn't do
it for SDVO as well.
This is completely untested due to lack of hardware.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This comment looks like some historical leftover. Get rid of it.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Change the gen6+ max delay if the pcode read was successful (not the
inverse).
The previous code was all sorts of wrong and has existed since I broke
it:
commit 42c0526c93
Author: Ben Widawsky <ben@bwidawsk.net>
Date: Wed Sep 26 10:34:00 2012 -0700
drm/i915: Extract PCU communication
I added some parentheses for clarity, and I also corrected the debug
message message to use the mask (wrong before I came along) and added a
print to show the value we're changing from.
Looking over the code, I'm not actually sure what we're trying to do. I
introduced the bug simply by extracting the function not implementing
anything new. We already set max_delay based on the capabilities
register (which is what we use elsewhere to determine min and max).
This would potentially increase it, I suppose? Jesse, I can't find the
document which explains the definitions of the pcode commands, maybe you
have it around.
Based on Jesse's response, this could potentially be for -fixes, or
stable, or maybe lead to us dropping it entirely. As the current code is
is, things won't completely break because of the aforementioned
capabilities register, and in my experimentation, enabling this has no
effect, it goes from 1100->1100.
I found this while reviewing Jesse's VLV patches.
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: Bikeshed-away the redudant parens spotted by Chris Wilson.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Recommended by Chris.
v2: Make it GEN7_FEATURES, and use it for vlv and hsw also (Ben)
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The index variable points at a page table, not a page directory or a
pde. Ben Widawsky fix this up correctly in his ppgtt cleanup, but I've
botched the job and copy&pasted the old confusion from the original
gen6 ppgtt code in
commit def886c376
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Thu Jan 24 14:44:56 2013 -0800
drm/i915: vfuncs for ppgtt
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Port C is for eDP. Port B is shared between HDMI and DP.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We'll re-enable select bits as needed after testing and power measurement.
v2: split out wake handling bits (Jani)
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Can prevent a hang when we get to tessellation. We need to set bit 15
as well for this workaround.
v2: update changelog with accurate info
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This fixes up broken logic introduced in
commit 90b107c8f7
Author: Shobhit Kumar <shobhit.kumar@intel.com>
Date: Wed Mar 28 13:39:32 2012 -0700
drm/i915: Enable HDMI on ValleyView
That one was probably a rebase fail along the way.
v2: clean up init ordering (Daniel)
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: Pimp commit message a bit.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We could split this out into a separate routine at some point as an
optimization.
v2: use FORCEWAKE_KERNEL (Ville)
Note: Ville mentioned in his review that he declines to be responsible
if this blows up due to the lack of "readback a register != FW_ACK,
but from the same cacheline" magic we have in other forcewake
implementations.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[danvet: Bikeshed overtly long lines according to checkpatch.pl. Nope,
this time around I didn't screw up printk message since I've left
those alone.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Planes are fixed to pipes in VLV.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
It fixes the issue arises due to passing 'nr_pages' in place of 'nents' to
sg_alloc_table. When ARM_HAS_SG_CHAIN is disabled, it is causing failure in
creating SG table for the buffers having more than 204 physical pages i.e.
equal to SG_MAX_SINGLE_ALLOC.
When using sg_alloc_table_from_pages interface, in place of sg_alloc_table,
page list will be passes to get each contiguous section which is represented
by a single entry in the table. For a Contiguous Buffer, number of entries
should be equal to 1.
Following check is causing the failure which is not applicable for Non-Contig
buffers:
if (WARN_ON_ONCE(nents > max_ents))
return -EINVAL;
Above patch is well tested for EXYNOS4 and EXYNOS5 for with/wihtout IOMMU
supprot. NOUVEAU and RADEON platforms also depends on drm_prime_pages_to_sg
helper function.
This set is base on "exynos-drm-fixes" branch at
http://git.kernel.org/?p=linux/kernel/git/daeinki/drm-exynos.git
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
Tested-by: Aaron Plattner <aplattner@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The existing gtt setup code is correct - and so doesn't need to be fixed to
handle compact dma scatter lists similarly to the previous patches. Still,
take the for_each_sg_page macro into use, to get somewhat simpler code.
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
So far we created a sparse dma scatter list for gem objects, where each
scatter list entry represented only a single page. In the future we'll
have to handle compact scatter lists too where each entry can consist of
multiple pages, for example for objects imported through PRIME.
The previous patches have already fixed up all other places where the
i915 driver _walked_ these lists. Here we have the corresponding fix to
_create_ compact lists. It's not a performance or memory footprint
improvement, but it helps to better exercise the new logic.
Reference: http://www.spinics.net/lists/dri-devel/msg33917.html
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
So far the assumption was that each dma scatter list entry contains only
a single page. This might not hold in the future, when we'll introduce
compact scatter lists, so prepare for this everywhere in the i915 code
where we walk such a list.
We'll fix the place _creating_ these lists separately in the next patch
to help the reviewing/bisectability.
Reference: http://www.spinics.net/lists/dri-devel/msg33917.html
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This is needed since currently sg_for_each_page assumes that we have
a valid page in each sg item. It is only a real problem for
CONFIG_SPARSEMEM where the page is dereferenced, in other cases the
iterator works ok with an invalid page pointer.
We can remove this workaround when we have fixed sg_page_iter to work on
scatterlists without backing pages.
Signed-off-by: Imre Deak <imre.deak@intel.com>
We currently have videomode_from_timing(), which takes one
display_timing entry from display_timings.
To make it easier to use display_timing without display_timings, this
patch renames videomode_from_timing() to videomode_from_timings(), and
adds a new videomode_from_timing() which just converts a given
display_timing to videomode.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Daniel writes:
Bunch of fixes, all pretty high-priority
- Fix execbuf argument checking (Kees Cook)
- Optionally obfuscate kernel addresses in dumps (Kees Cook)
- Two patches from Takashi Iwai to fix DP link training regressions he's
seen.
- intel-gfx is no longer subscribers-only (well, just no longer moderated
in an annoying way for non-subscribers), update MAINTAINERS
- gm45 gmbus irq fallout fix (Jiri Kosina)
* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: stop using GMBUS IRQs on Gen4 chips
MAINTAINERS: intel-gfx is no longer subscribers-only
drm/i915: Use the fixed pixel clock for eDP in intel_dp_set_m_n()
Revert "drm/i915: try to train DP even harder"
drm/i915: bounds check execbuffer relocation count
drm/i915: restrict kernel address leak in debugfs
While testing the mgag200 kms driver on the HP ProLiant Gen8, a
bug was seen. Once the bootloader would load the selected kernel,
the screen would go black. At first it was assumed that the
mgag200 kms driver was hanging. But after setting up the grub
serial output, it was seen that the driver was being loaded
properly. After trying serval monitors, one finaly displayed
the message "Frequency Out of Range". By comparing the kms pll
algorithm with the previous mgag200 xorg driver pll algorithm,
discrepencies were found. Once the kms pll algorithm was
modified, the expected pll values were produced. This fix was
tested on several monitors of varying native resolutions.
Signed-off-by: Julia Lemire <jlemire@matrox.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
This patch checks command list from user for g2d restrictions.
For now, g2d driver wasn't considered for G2D hardware restrictions
properly. The below is the restrictions to G2D hardware and this patch
considers them.
- width or height value in the command list
has to be in valid range (1 to 8000 pixels)
- The requested area should be less than buffer size.
- right has to be bigger than left.
- bottom has to be bigger than top.
Changelog v2:
- Fix merge conflict.
Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
This patch adds a new function to get gem buffer size. And this
funtion could be used for g2d driver or others can get gem buffer
size to check if the buffer is valid or not.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <inki.dae@samsung.com>
This patch adds g2d_buf_info structure and buffer relevant
variables moves into the g2d_buf_info to manage g2d buffer
information more efficiently.
Changelog v2:
- Fix merge conflict.
Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
This patch just cleans up G2D codes for readability.
For this, it changes the member of g2d_cmdlist_node, obj_type into
buf_type.
Changelog v2:
- Revert irrelevant codes.
Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
This patch fixes G2D core malfunctioning issue once g2d dma is started.
Without 'DMA_HOLD_CMD_REG' register setting, there is only one interrupt
after the execution to all command lists have been completed. And that
induces watchdog. So this patch sets 'LIST_HOLD' command to the register
so that command execution interrupt can be occured whenever each command
list execution is finished.
Changelog v2:
- Consider for interrupt setup to each command list and all command lists
And correct typo.
Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
This patch clears node object type in G2D unmap cmdlist.
The obj_type of cmdlist node has to be cleared in
g2d_unmap_cmdlist_gem() so that the node can be reused
in g2d_map_cmdlist_gem().
Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
This patch fixes error routine when g2d_userptr_get_dma_add is failed.
When sg_alloc_table_from_pages() is failed, it doesn't call
sg_free_table() anymore.
Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Replaced calls to kzalloc followed by memcpy with call to kmemdup.
Patch found using coccinelle.
Signed-off-by: Alexandru Gheorghiu <gheorghiuandru@gmail.com>
Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Calculate the correct address offset values for alpha and color key
control registers based on exynos4 and exynos5 user manuals.
Also remove VIDOSD_C_SIZE_W0 macro and fix comments about registers for
size and alpha.
Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
Acked-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Fixes the following sparse warning:
drivers/gpu/drm/exynos/exynos_mixer.c:821:5: warning:
symbol 'mixer_check_timing' was not declared. Should it be static?
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
modified compatible string for exynos4 fimd as "exynos4210-fimd" and
exynos5 fimd as "exynos5250-fimd" to stick to the rule that compatible
value should be named after first specific SoC model in which this
particular IP version was included as discussed at
https://patchwork.kernel.org/patch/2144861/
Signed-off-by: Vikas Sajjan <vikas.sajjan@linaro.org>
Acked-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Alex writes:
"Mostly just small bug fixes. Big change is new pci ids
for Richland APUs."
* 'drm-fixes-3.9' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: add Richland pci ids
drm/radeon: add support for Richland APUs
drm/radeon/benchmark: allow same domains for dma copy
drm/radeon/benchmark: make sure bo blit copy exists before using it
drm/radeon: fix backend map setup on 1 RB trinity boards
drm/radeon: fix S/R on VM systems (cayman/TN/SI)
Lots of thermal fixes and fix a lockdep warning we've been seeing.
* 'drm-nouveau-fixes-3.9' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
drm/nv50/kms: prevent lockdep false-positive in page flipping path
drm/nouveau/core: fix return value of nouveau_object_del()
drm/nouveau/hwmon: do not expose a buggy temperature if it is unavailable
drm/nouveau/therm: display the availability of the internal sensor
drm/nouveau/therm: disable temperature management if the sensor isn't readable
drm/nouveau/therm: disable auto fan management if temperature is not available
drm/nv40/therm: reserve negative temperatures for errors
drm/nv40/therm: disable temperature reading if the bios misses some parameters
drm/nouveau/therm-ic: the temperature is off by sensor_constant, warn the user
drm/nouveau/therm: remove some confusion introduced by therm_mode
drm/nouveau/therm: do not make assumptions on temperature
drm/nv40/therm: increase the sensor's settling delay to 20ms
drm/nv40/therm: improve selection between the old and the new style
Commit 28c70f162 ("drm/i915: use the gmbus irq for waits") switched to
using GMBUS irqs instead of GPIO bit-banging for chipset generations 4
and above.
It turns out though that on many systems this leads to spurious interrupts
being generated, long after the register write to disable the IRQs has been
issued.
Typically this results in the spurious interrupt source getting
disabled:
[ 9.636345] irq 16: nobody cared (try booting with the "irqpoll" option)
[ 9.637915] Pid: 4157, comm: ifup Tainted: GF 3.9.0-rc2-00341-g0863702 #422
[ 9.639484] Call Trace:
[ 9.640731] <IRQ> [<ffffffff8109b40d>] __report_bad_irq+0x1d/0xc7
[ 9.640731] [<ffffffff8109b7db>] note_interrupt+0x15b/0x1e8
[ 9.640731] [<ffffffff810999f7>] handle_irq_event_percpu+0x1bf/0x214
[ 9.640731] [<ffffffff81099a88>] handle_irq_event+0x3c/0x5c
[ 9.640731] [<ffffffff8109c139>] handle_fasteoi_irq+0x7a/0xb0
[ 9.640731] [<ffffffff8100400e>] handle_irq+0x1a/0x24
[ 9.640731] [<ffffffff81003d17>] do_IRQ+0x48/0xaf
[ 9.640731] [<ffffffff8142f1ea>] common_interrupt+0x6a/0x6a
[ 9.640731] <EOI> [<ffffffff8142f952>] ? system_call_fastpath+0x16/0x1b
[ 9.640731] handlers:
[ 9.640731] [<ffffffffa000d771>] usb_hcd_irq [usbcore]
[ 9.640731] [<ffffffffa0306189>] yenta_interrupt [yenta_socket]
[ 9.640731] Disabling IRQ #16
The really curious thing is now that irq 16 is _not_ the interrupt for
the i915 driver when using MSI, but it _is_ the interrupt when not
using MSI. So by all indications it seems like gmbus is able to
generate a legacy (shared) interrupt in MSI mode on some
configurations. I've tried to reproduce this and the differentiating
thing seems to be that on unaffected systems no other device uses irq
16 (which seems to be the non-MSI intel gfx interrupt on all gm45).
I have no idea how that even can happen.
To avoid tempting this elephant into a rage, just disable gmbus
interrupt support on gen 4.
v2: Improve the commit message with exact details of what's going on.
Also add a comment in the code to warn against this particular
elephant in the room.
v3: Move the comment explaing how gen4 blows up next to the definition
of HAS_GMBUS_IRQ to keep the code-flow straight. Suggested by Chris
Wilson.
Signed-off-by: Jiri Kosina <jkosina@suse.cz> (v1)
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
References: https://lkml.org/lkml/2013/3/8/325
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
So far the assumption was that each scatter list entry contains a single
page. This might not hold in the future, when we'll introduce compact
scatter lists, so prepare for this here.
Reference: http://www.spinics.net/lists/dri-devel/msg33917.html
Signed-off-by: Imre Deak <imre.deak@intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Merge tag 'v3.9-rc3' into drm-intel-next-queued
Backmerge so that I can merge Imre Deak's coalesced sg entries fixes,
which depend upon the new for_each_sg_page introduce in
commit a321e91b6d
Author: Imre Deak <imre.deak@intel.com>
Date: Wed Feb 27 17:02:56 2013 -0800
lib/scatterlist: add simple page iterator
The merge itself is just two trivial conflicts:
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We need to set the 'allow force wake' bit to enable forcewake handling
later on.
v2: split from clock gating patch (Jani)
check for allowwakeack (Ville)
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The eDP output on HP Z1 is still broken when X is started even after
fixing the infinite link-train loop. The regression was introduced in
3.6 kernel for cleaning up the mode clock handling code in intel_dp.c
by the commit [71244653: drm/i915: adjusted_mode->clock in the dp
mode_fix].
In the past, the clock of the reference mode was modified in
intel_dp_mode_fixup() in the case of eDP fixed clock, and this clock was
used for calculating in intel_dp_set_m_n(). This override was removed,
thus the wrong mode clock is used for the calculation, resulting in a
psychedelic smoking output in the end.
This patch corrects the clock to be used in the place.
v1->v2: Use intel_edp_target_clock() for checking eDP fixed clock
instead of open code as in ironlake_set_m_n().
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reported-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Martin Peres <martin.peres@labri.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
The kernel message "[ PTHERM][0000:01:00.0] Thermal management: disabled"
is misleading as it actually means "fan management: disabled".
This patch fixes both the source and the message to improve readability.
Signed-off-by: Martin Peres <martin.peres@labri.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
In nouveau_therm_sensor_event, temperature is stored as an uint8_t
even though the original interface returns an int.
This change should make it more obvious when the sensor is either
very-ill-calibrated or when we selected the wrong sensor style
on the nv40 family.
Signed-off-by: Martin Peres <martin.peres@labri.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Widawsky