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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI video support fixes from Rafael Wysocki:
"I'm sending a separate pull request for this as it may be somewhat
controversial. The breakage addressed here is not really new and the
fixes may not satisfy all users of the affected systems, but we've had
so much back and forth dance in this area over the last several weeks
that I think it's time to actually make some progress.
The source of the problem is that about a year ago we started to tell
BIOSes that we're compatible with Windows 8, which we really need to
do, because some systems shipping with Windows 8 are tested with it
and nothing else, so if we tell their BIOSes that we aren't compatible
with Windows 8, we expose our users to untested BIOS/AML code paths.
However, as it turns out, some Windows 8-specific AML code paths are
not tested either, because Windows 8 actually doesn't use the ACPI
methods containing them, so if we declare Windows 8 compatibility and
attempt to use those ACPI methods, things break. That occurs mostly
in the backlight support area where in particular the _BCM and _BQC
methods are plain unusable on some systems if the OS declares Windows
8 compatibility.
[ The additional twist is that they actually become usable if the OS
says it is not compatible with Windows 8, but that may cause
problems to show up elsewhere ]
Investigation carried out by Matthew Garrett indicates that what
Windows 8 does about backlight is to leave backlight control up to
individual graphics drivers. At least there's evidence that it does
that if the Intel graphics driver is used, so we've decided to follow
Windows 8 in that respect and allow i915 to control backlight (Daniel
likes that part).
The first commit from Aaron Lu makes ACPICA export the variable from
which we can infer whether or not the BIOS believes that we are
compatible with Windows 8.
The second commit from Matthew Garrett prepares the ACPI video driver
by making it initialize the ACPI backlight even if it is not going to
be used afterward (that is needed for backlight control to work on
Thinkpads).
The third commit implements the actual workaround making i915 take
over backlight control if the firmware thinks it's dealing with
Windows 8 and is based on the work of multiple developers, including
Matthew Garrett, Chun-Yi Lee, Seth Forshee, and Aaron Lu.
The final commit from Aaron Lu makes us follow Windows 8 by informing
the firmware through the _DOS method that it should not carry out
automatic brightness changes, so that brightness can be controlled by
GUI.
Hopefully, this approach will allow us to avoid using blacklists of
systems that should not declare Windows 8 compatibility just to avoid
backlight control problems in the future.
- Change from Aaron Lu makes ACPICA export a variable which can be
used by driver code to determine whether or not the BIOS believes
that we are compatible with Windows 8.
- Change from Matthew Garrett makes the ACPI video driver initialize
the ACPI backlight even if it is not going to be used afterward
(that is needed for backlight control to work on Thinkpads).
- Fix from Rafael J Wysocki implements Windows 8 backlight support
workaround making i915 take over bakclight control if the firmware
thinks it's dealing with Windows 8. Based on the work of multiple
developers including Matthew Garrett, Chun-Yi Lee, Seth Forshee,
and Aaron Lu.
- Fix from Aaron Lu makes the kernel follow Windows 8 by informing
the firmware through the _DOS method that it should not carry out
automatic brightness changes, so that brightness can be controlled
by GUI"
* tag 'acpi-video-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / video: no automatic brightness changes by win8-compatible firmware
ACPI / video / i915: No ACPI backlight if firmware expects Windows 8
ACPI / video: Always call acpi_video_init_brightness() on init
ACPICA: expose OSI version
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According to Matthew Garrett, "Windows 8 leaves backlight control up
to individual graphics drivers rather than making ACPI calls itself.
There's plenty of evidence to suggest that the Intel driver for
Windows [8] doesn't use the ACPI interface, including the fact that
it's broken on a bunch of machines when the OS claims to support
Windows 8. The simplest thing to do appears to be to disable the
ACPI backlight interface on these systems".
There's a problem with that approach, however, because simply
avoiding to register the ACPI backlight interface if the firmware
calls _OSI for Windows 8 may not work in the following situations:
(1) The ACPI backlight interface actually works on the given system
and the i915 driver is not loaded (e.g. another graphics driver
is used).
(2) The ACPI backlight interface doesn't work on the given system,
but there is a vendor platform driver that will register its
own, equally broken, backlight interface if not prevented from
doing so by the ACPI subsystem.
Therefore we need to allow the ACPI backlight interface to be
registered until the i915 driver is loaded which then will unregister
it if the firmware has called _OSI for Windows 8 (or will register
the ACPI video driver without backlight support if not already
present).
For this reason, introduce an alternative function for registering
ACPI video, acpi_video_register_with_quirks(), that will check
whether or not the ACPI video driver has already been registered
and whether or not the backlight Windows 8 quirk has to be applied.
If the quirk has to be applied, it will block the ACPI backlight
support and either unregister the backlight interface if the ACPI
video driver has already been registered, or register the ACPI
video driver without the backlight interface otherwise. Make
the i915 driver use acpi_video_register_with_quirks() instead of
acpi_video_register() in i915_driver_load().
This change is based on earlier patches from Matthew Garrett,
Chun-Yi Lee and Seth Forshee and includes a fix from Aaron Lu's.
References: https://bugzilla.kernel.org/show_bug.cgi?id=51231
Tested-by: Aaron Lu <aaron.lu@intel.com>
Tested-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>
Tested-by: Yves-Alexis Perez <corsac@debian.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: Matthew Garrett <matthew.garrett@nebula.com>
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drm-fixes
Fixes builds
* 'drm/3.11/fixes' of git://linuxtv.org/pinchartl/fbdev:
drm/rcar-du: Use the GEM PRIME helpers
drm/shmobile: Use the GEM PRIME helpers
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The GEM CMA PRIME import/export helpers have been removed in favor of
generic GEM PRIME helpers with GEM CMA low-level operations. Fix the
driver accordingly.
Reported-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Mark Brown <broonie@linaro.org>
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The GEM CMA PRIME import/export helpers have been removed in favor of
generic GEM PRIME helpers with GEM CMA low-level operations. Fix the
driver accordingly.
Reported-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Mark Brown <broonie@linaro.org>
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more DPM fixes for radeon.
* 'drm-fixes-3.11' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon/dpm: add debugfs support for RS780/RS880 (v3)
drm/radeon/dpm/atom: fix broken gcc harder
drm/radeon/dpm/atom: restructure logic to work around a compiler bug
drm/radeon/dpm: fix atom vram table parsing
drm/radeon: fix an endian bug in atom table parsing
drm/radeon: add a module parameter to disable aspm
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This allows you to look at the current DPM state via
debugfs.
Due to the way the hardware works on these asics, there's
no way to look up exactly what power state we are in, so
we make the best guess we can based on the current sclk.
v2: Anthoine's version
v3: fix ref div
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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It seems gcc 4.8.1 generates bogus code for the old logic causing
part of the function to get skipped.
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Parsing the table in incorrectly led to problems with
certain asics with mclk switching.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Can cause hangs when enabled in certain motherboards.
Set radeon.aspm=0 to disable aspm.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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git://people.freedesktop.org/~danvet/drm-intel
One feature latecomer, I've forgotten to merge the patch to reeanble the
Haswell power well feature now that the audio interaction is fixed up.
Since that was the only unfixed issue with it I've figured I could throw
it in a bit late, and it's trivial to revert in case I'm wrong.
Otherwise all bug/regression fixes:
- Fix status page reinit after gpu hangs, spotted by more paranoid igt
checks.
- Fix object list walking fumble regression in the shrinker (only the
counting part, the actual shrinking code was correct so no Oops
potential), from Xiong Zhang.
- Fix DP 1.2 bw limits (Imre).
- Restore legacy forcewake on ivb, too many broken biosen out there. We
dump a warn though that recent userspace might fall over with that
config (Guenter Roeck).
- Patch up the gen2 cs tlb w/a.
- Improve the fence coherency w/a now that we have a better understanding
what's going on. The removed wbinvd+ipi should make -rt folks happy. Big
thanks to Jon Bloomfield for figuring this out, patches from Chris.
- Fix write-read race when switching ring (Chris). Spotted with code
inspection, but now we also have an igt for it.
There's an ugly regression we're still working on introduced between
3.10-rc7 and 3.10.0. Unfortunately we can't just revert the offender since
that one fixes another regression :( I've asked Steven to include my
-fixes branch into linux-next to prevent such fallout in the future,
hopefully.
* tag 'drm-intel-fixes-2013-07-11' of git://people.freedesktop.org/~danvet/drm-intel:
Revert "drm/i915: Workaround incoherence between fences and LLC across multiple CPUs"
drm/i915: Fix incoherence with fence updates on Sandybridge+
drm/i915: Fix write-read race with multiple rings
Partially revert "drm/i915: unconditionally use mt forcewake on hsw/ivb"
drm/i915: fix lane bandwidth capping for DP 1.2 sinks
drm/i915: fix up ring cleanup for the i830/i845 CS tlb w/a
drm/i915: Correct obj->mm_list link to dev_priv->dev_priv->mm.inactive_list
drm/i915: switch disable_power_well default value to 1
drm/i915: reinit status page registers after gpu reset
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multiple CPUs"
This reverts commit 25ff119 and the follow on for Valleyview commit 2dc8aae.
commit 25ff1195f8a0b3724541ae7bbe331b4296de9c06
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu Apr 4 21:31:03 2013 +0100
drm/i915: Workaround incoherence between fences and LLC across multiple CPUs
commit 2dc8aae06d53458dd3624dc0accd4f81100ee631
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed May 22 17:08:06 2013 +0100
drm/i915: Workaround incoherence with fence updates on Valleyview
Jon Bloomfield came up with a plausible explanation and cheap fix
(drm/i915: Fix incoherence with fence updates on Sandybridge+) for the
race condition, so lets run with it.
This is a candidate for stable as the old workaround incurs a
significant cost (calling wbinvd on all CPUs before performing the
register write) for some workloads as noted by Carsten Emde.
Link: http://lists.freedesktop.org/archives/intel-gfx/2013-June/028819.html
References: https://www.osadl.org/?id=1543#c7602
References: https://bugs.freedesktop.org/show_bug.cgi?id=63825
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jon Bloomfield <jon.bloomfield@intel.com>
Cc: Carsten Emde <C.Emde@osadl.org>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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This hopefully fixes the root cause behind the workaround added in
commit 25ff1195f8a0b3724541ae7bbe331b4296de9c06
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu Apr 4 21:31:03 2013 +0100
drm/i915: Workaround incoherence between fences and LLC across multiple CPUs
Thanks to further investigation by Jon Bloomfield, he realised that
the 64-bit register might be broken up by the hardware into two 32-bit
writes (a problem we have encountered elsewhere). This non-atomicity
would then cause an issue where a second thread would see an
intermediate register state (new high dword, old low dword), and this
register would randomly be used in preference to its own thread register.
This would cause the second thread to read from and write into a fairly
random tiled location. Breaking the operation into 3 explicit 32-bit
updates (first disable the fence, poke the upper bits, then poke the lower
bits and enable) ensures that, given proper serialisation between the
32-bit register write and the memory transfer, that the fence value is
always consistent.
Armed with this knowledge, we can explain how the previous workaround
work. The key to the corruption is that a second thread sees an
erroneous fence register that conflicts and overrides its own. By
serialising the fence update across all CPUs, we have a small window
where no GTT access is occurring and so hide the potential corruption.
This also leads to the conclusion that the earlier workaround was
incomplete.
v2: Be overly paranoid about the order in which fence updates become
visible to the GPU to make really sure that we turn the fence off before
doing the update, and then only switch the fence on afterwards.
Signed-off-by: Jon Bloomfield <jon.bloomfield@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Carsten Emde <C.Emde@osadl.org>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Daniel noticed a problem where is we wrote to an object with ring A in
the middle of a very long running batch, then executed a quick batch on
ring B before a batch that reads from the same object, its obj->ring would
now point to ring B, but its last_write_seqno would be still relative to
ring A. This would allow for the user to read from the object before the
GPU had completed the write, as set_domain would only check that ring B
had passed the last_write_seqno.
To fix this simply (and inelegantly), we bump the last_write_seqno when
switching rings so that the last_write_seqno is always relative to the
current obj->ring.
This fixes igt/tests/gem_write_read_ring_switch.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@vger.kernel.org
[danvet: Add note about the newly created igt which exercises this
bug.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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This patch partially reverts commit 36ec8f877481449bdfa072e6adf2060869e2b970 for
IvyBridge CPUs.
The original commit results in repeated 'Timed out waiting for forcewake old
ack to clear' messages on a Supermicro C7H61 board (BIOS version 2.00 and 2.00b)
with i7-3770K CPU. It ultimately results in a hangup if the system is highly
loaded. Reverting the commit for IvyBridge CPUs fixes the issue.
Issue a warning if the CPU is IvyBridge and mt forcewake is disabled, since
this condition can result in secondary issues.
v2: Only revert patch for Ivybridge CPUs
Issue info message if mt forcewake is disabled on Ivybridge
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=60541
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: stable@vger.kernel.org
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=66139
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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DP 1.2 compatible displays may report a 5.4Gbps maximum bandwidth which
the driver will treat as an invalid value and use 1.62Gbps instead. Fix
this by capping to 2.7Gbps for sinks reporting a 5.4Gbps max bw.
Also add a warning for reserved values.
v2:
- allow only bw values explicitly listed in the DP standard (Daniel,
Chris)
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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It's not a good idea to also run the pipe_control cleanup.
This regression has been introduced whith the original cs tlb w/a in
commit b45305fce5bb1abec263fcff9d81ebecd6306ede
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Mon Dec 17 16:21:27 2012 +0100
drm/i915: Implement workaround for broken CS tlb on i830/845
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=64610
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@vger.kernel.org
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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obj->mm_list link to dev_priv->mm.inactive_list/active_list
obj->global_list link to dev_priv->mm.unbound_list/bound_list
This regression has been introduced in
commit 93927ca52a55c23e0a6a305e7e9082e8411ac9fa
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Thu Jan 10 18:03:00 2013 +0100
drm/i915: Revert shrinker changes from "Track unbound pages"
Cc: stable@vger.kernel.org
Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.com>
[danvet: Add regression notice.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Now that the audio driver is using our power well API, everything
should be working correctly, so let's give it a try.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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This fixes gpu reset on my gm45 - without this patch the bsd thing is
forever stuck since the seqno updates never reach the status page.
Tbh I have no idea how this ever worked without rewriting the hws
registers after a gpu reset.
To satisfy my OCD also give the functions a bit more consistent names:
- Use status_page everywhere, also for the physical addressed one.
- Use init for the allocation part and setup for the register setup
part consistently.
Long term I'd really like to share the hw init parts completely
between gpu reset, resume and driver load, i.e. to call
i915_gem_init_hw instead of the individual pieces we might need.
v2: Add the missing paragraph to the commit message about what bug
exactly this patch here fixes.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=65495
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: lu hua <huax.lu@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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More DPM fixes, r6xx DMA fix for bo moving, UVD fixes,
one major regression fix on bootup on some machine (ttm backoff missing)
* 'drm-fixes-3.11' of git://people.freedesktop.org/~agd5f/linux:
radeon kms: do not flush uninitialized hotplug work
drm/radeon/dpm/sumo: handle boost states properly when forcing a perf level
drm/radeon: align VM PTBs (Page Table Blocks) to 32K
drm/radeon: allow selection of alignment in the sub-allocator
drm/radeon: never unpin UVD bo v3
drm/radeon: fix UVD fence emit
drm/radeon: add fault decode function for CIK
drm/radeon: add fault decode function for SI (v2)
drm/radeon: add fault decode function for cayman/TN (v2)
drm/radeon: use radeon device for request firmware
drm/radeon: add missing ttm_eu_backoff_reservation to radeon_bo_list_validate
drm/radeon: use CP DMA on r6xx for bo moves
drm/radeon: implement bo copy callback using CP DMA (v2)
drm/radeon: Disable dma rings for bo moves on r6xx
drm/radeon/dpm: disable gfx PG on PALM
drm/radeon/hdmi: make sure we have an afmt block assigned
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Fix a warning from lockdep caused by calling flush_work() for
uninitialized hotplug work. Initialize hotplug_work, audio_work
and reset_work upon successful radeon_irq_kms_init() completion
and thus perform hotplug flush_work only when rdev->irq.installed
is true.
[ 4.790019] [drm] Loading CEDAR Microcode
[ 4.790943] r600_cp: Failed to load firmware "radeon/CEDAR_smc.bin"
[ 4.791152] [drm:evergreen_startup] *ERROR* Failed to load firmware!
[ 4.791330] radeon 0000:01:00.0: disabling GPU acceleration
[ 4.792633] INFO: trying to register non-static key.
[ 4.792792] the code is fine but needs lockdep annotation.
[ 4.792953] turning off the locking correctness validator.
[ 4.793114] CPU: 2 PID: 1 Comm: swapper/0 Not tainted 3.11.0-rc0-dbg-10676-gfe56456-dirty #1816
[ 4.793314] Hardware name: Acer Aspire 5741G /Aspire 5741G , BIOS V1.20 02/08/2011
[ 4.793507] ffffffff821fd810 ffff8801530b9a18 ffffffff8160434e 0000000000000002
[ 4.794155] ffff8801530b9ad8 ffffffff810b8404 ffff8801530b0798 ffff8801530b0000
[ 4.794789] ffff8801530b9b00 0000000000000046 00000000000004c0 ffffffff00000000
[ 4.795418] Call Trace:
[ 4.795573] [<ffffffff8160434e>] dump_stack+0x4e/0x82
[ 4.795731] [<ffffffff810b8404>] __lock_acquire+0x1a64/0x1d30
[ 4.795893] [<ffffffff814a87f0>] ? dev_vprintk_emit+0x50/0x60
[ 4.796034] [<ffffffff810b8fb4>] lock_acquire+0xa4/0x200
[ 4.796216] [<ffffffff8106cd75>] ? flush_work+0x5/0x280
[ 4.796375] [<ffffffff8106cdad>] flush_work+0x3d/0x280
[ 4.796520] [<ffffffff8106cd75>] ? flush_work+0x5/0x280
[ 4.796682] [<ffffffff810b659d>] ? trace_hardirqs_on_caller+0xfd/0x1c0
[ 4.796862] [<ffffffff8131d775>] ? delay_tsc+0x95/0xf0
[ 4.797024] [<ffffffff8141bb8b>] radeon_irq_kms_fini+0x2b/0x70
[ 4.797186] [<ffffffff814557c9>] evergreen_init+0x2a9/0x2e0
[ 4.797347] [<ffffffff813ebb1f>] radeon_device_init+0x5ef/0x700
[ 4.797511] [<ffffffff81335bc7>] ? pci_find_capability+0x47/0x50
[ 4.797672] [<ffffffff813edaed>] radeon_driver_load_kms+0x8d/0x150
[ 4.797843] [<ffffffff813ce426>] drm_get_pci_dev+0x166/0x280
[ 4.798007] [<ffffffff8116cff5>] ? kfree+0xf5/0x2e0
[ 4.798168] [<ffffffff813ea298>] ? radeon_pci_probe+0x98/0xd0
[ 4.798329] [<ffffffff813ea2aa>] radeon_pci_probe+0xaa/0xd0
[ 4.798489] [<ffffffff81339404>] pci_device_probe+0x84/0xe0
[ 4.798644] [<ffffffff814ac7d6>] driver_probe_device+0x76/0x240
[ 4.798805] [<ffffffff814aca73>] __driver_attach+0x93/0xa0
[ 4.798948] [<ffffffff814ac9e0>] ? __device_attach+0x40/0x40
[ 4.799126] [<ffffffff814aa82b>] bus_for_each_dev+0x6b/0xb0
[ 4.799272] [<ffffffff814ac2be>] driver_attach+0x1e/0x20
[ 4.799434] [<ffffffff814abec0>] bus_add_driver+0x1f0/0x280
[ 4.799596] [<ffffffff814ad0e4>] driver_register+0x74/0x150
[ 4.799758] [<ffffffff8133923d>] __pci_register_driver+0x5d/0x60
[ 4.799936] [<ffffffff81d16efc>] ? ttm_init+0x67/0x67
[ 4.800081] [<ffffffff813ce655>] drm_pci_init+0x115/0x130
[ 4.800243] [<ffffffff81d16efc>] ? ttm_init+0x67/0x67
[ 4.800405] [<ffffffff81d16f98>] radeon_init+0x9c/0xba
[ 4.800586] [<ffffffff810002ca>] do_one_initcall+0xfa/0x150
[ 4.800746] [<ffffffff81073f60>] ? parse_args+0x120/0x330
[ 4.800909] [<ffffffff81cdafae>] kernel_init_freeable+0x111/0x191
[ 4.801052] [<ffffffff81cda87a>] ? do_early_param+0x88/0x88
[ 4.801233] [<ffffffff815fb670>] ? rest_init+0x140/0x140
[ 4.801393] [<ffffffff815fb67e>] kernel_init+0xe/0x180
[ 4.801556] [<ffffffff8160dcac>] ret_from_fork+0x7c/0xb0
[ 4.801718] [<ffffffff815fb670>] ? rest_init+0x140/0x140
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Need to properly enable/disable boost states when forcing a performance
level.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Covers requirements of all current asics.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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There are cases where we need more than 4k alignment. No
functional change with this commit.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Changing the UVD BOs offset on suspend/resume doesn't work because the VCPU
internally keeps pointers to it. Just keep it always pinned and save the
content manually.
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=66425
v2: fix compiler warning
v3: fix CIK support
Note: a version of this patch needs to go to stable.
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Currently doesn't matter cause we allocate the fence in the
lower 265MB anyway.
Reported-by: Frank Huang <FrankR.Huang@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Helpful for debugging GPUVM errors as we can see what
hw block and page generated the fault in the log.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Helpful for debugging GPUVM errors as we can see what
hw block and page generated the fault in the log.
v2: simplify fault decoding
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
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Helpful for debugging GPUVM errors as we can see what
hw block and page generated the fault in the log.
v2: simplify fault decoding
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
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Avoid creating temporary platform device that will lead to issue
when several radeon gpu are in same computer. Instead directly use
the radeon device for requesting firmware.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Op 10-07-13 12:03, Markus Trippelsdorf schreef:
> On 2013.07.10 at 11:56 +0200, Maarten Lankhorst wrote:
>> Op 10-07-13 11:46, Markus Trippelsdorf schreef:
>>> On 2013.07.10 at 11:29 +0200, Maarten Lankhorst wrote:
>>>> Op 10-07-13 11:22, Markus Trippelsdorf schreef:
>>>>> By simply copy/pasting a big document under LibreOffice my system hangs
>>>>> itself up. Only a hard reset gets it working again.
>>>>> see also: https://bugs.freedesktop.org/show_bug.cgi?id=66551
>>>>>
>>>>> I've bisected the issue to:
>>>>>
>>>>> commit ecff665f5e3f1c6909353e00b9420e45ae23d995
>>>>> Author: Maarten Lankhorst <m.b.lankhorst@gmail.com>
>>>>> Date: Thu Jun 27 13:48:17 2013 +0200
>>>>>
>>>>> drm/ttm: make ttm reservation calls behave like reservation calls
>>>>>
>>>>> This commit converts the source of the val_seq counter to
>>>>> the ww_mutex api. The reservation objects are converted later,
>>>>> because there is still a lockdep splat in nouveau that has to
>>>>> resolved first.
>>>>>
>>>>> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
>>>>> Reviewed-by: Jerome Glisse <jglisse@redhat.com>
>>>>> Signed-off-by: Dave Airlie <airlied@redhat.com>
>>>> Hey,
>>>>
>>>> Can you try current head with CONFIG_PROVE_LOCKING set and post the
>>>> lockdep splat from dmesg, if any? If there is any locking issue
>>>> lockdep should warn about it. Lockdep will turn itself off after the
>>>> first splat, so if the lockdep splat happens before running the
>>>> affected parts those will have to be fixed first.
>>> There was an unrelated EDAC lockdep splat, so I simply disabled it.
>>>
>>> This is what I get:
>>>
>>> Jul 10 11:40:44 x4 kernel: ================================================
>>> Jul 10 11:40:44 x4 kernel: [ BUG: lock held when returning to user space! ]
>>> Jul 10 11:40:44 x4 kernel: 3.10.0-08587-g496322b #35 Not tainted
>>> Jul 10 11:40:44 x4 kernel: ------------------------------------------------
>>> Jul 10 11:40:44 x4 kernel: X/211 is leaving the kernel with locks still held!
>>> Jul 10 11:40:44 x4 kernel: 2 locks held by X/211:
>>> Jul 10 11:40:44 x4 kernel: #0: (reservation_ww_class_acquire){+.+.+.}, at: [<ffffffff813279f0>] radeon_bo_list_validate+0x20/0xd0
>>> Jul 10 11:40:44 x4 kernel: #1: (reservation_ww_class_mutex){+.+.+.}, at: [<ffffffff81309306>] ttm_eu_reserve_buffers+0x126/0x4b0
>>> Jul 10 11:40:52 x4 kernel: SysRq : Emergency Sync
>>> Jul 10 11:40:53 x4 kernel: Emergency Sync complete
>>>
>> Thanks, exactly what I thought. I missed a backoff somewhere..
>>
>> Does the below patch fix it?
> Yes. Thank you for your quick reply.
8<------
If radeon_cs_parser_relocs fails ttm_eu_backoff_reservation doesn't get called.
This left open a bug where ttm_eu_reserve_buffers succeeded but the bo's were
not unlocked afterwards:
Jul 10 11:40:44 x4 kernel: ================================================
Jul 10 11:40:44 x4 kernel: [ BUG: lock held when returning to user space! ]
Jul 10 11:40:44 x4 kernel: 3.10.0-08587-g496322b #35 Not tainted
Jul 10 11:40:44 x4 kernel: ------------------------------------------------
Jul 10 11:40:44 x4 kernel: X/211 is leaving the kernel with locks still held!
Jul 10 11:40:44 x4 kernel: 2 locks held by X/211:
Jul 10 11:40:44 x4 kernel: #0: (reservation_ww_class_acquire){+.+.+.}, at: [<ffffffff813279f0>] radeon_bo_list_validate+0x20/0xd0
Jul 10 11:40:44 x4 kernel: #1: (reservation_ww_class_mutex){+.+.+.}, at: [<ffffffff81309306>] ttm_eu_reserve_buffers+0x126/0x4b0
Jul 10 11:40:52 x4 kernel: SysRq : Emergency Sync
Jul 10 11:40:53 x4 kernel: Emergency Sync complete
This is a regression caused by commit ecff665f5e.
"drm/ttm: make ttm reservation calls behave like reservation calls"
Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Tested-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Lighter weight than using the 3D engine.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Lighter weight than using the 3D engine.
v2: fix ring count
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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They still seem to cause instability on some r6xx parts.
As a follow up, we can switch to using CP DMA for bo
moves on r6xx as a lighter weight alternative to using
the 3D engine.
A version of this patch should also go to stable kernels.
Tested-by: J.N. <golden.fleeced@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Gfx PG doesn't seem to work properly when UVD is initialized
on certain PALM boards. Disable gfx PG for now until we sort
out a proper fix.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Prevents a segfault if an afmt block is not assigned to the
encoder such as in the LVDS or eDP case.
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=66714
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Use "const char *" instead of "char *" in order to avoid this warning:
drivers/gpu/drm/drm_edid_load.c: In function ‘drm_load_edid_firmware’:
drivers/gpu/drm/drm_edid_load.c:245:25: warning: initialization discards ‘const’ qualifier from pointer target type [enabled by default]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull drm updates from Dave Airlie:
"Okay this is the big one, I was stalled on the fbdev pull req as I
stupidly let fbdev guys merge a patch I required to fix a warning with
some patches I had, they ended up merging the patch from the wrong
place, but the warning should be fixed. In future I'll just take the
patch myself!
Outside drm:
There are some snd changes for the HDMI audio interactions on haswell,
they've been acked for inclusion via my tree. This relies on the
wound/wait tree from Ingo which is already merged.
Major changes:
AMD finally released the dynamic power management code for all their
GPUs from r600->present day, this is great, off by default for now but
also a huge amount of code, in fact it is most of this pull request.
Since it landed there has been a lot of community testing and Alex has
sent a lot of fixes for any bugs found so far. I suspect radeon might
now be the biggest kernel driver ever :-P p.s. radeon.dpm=1 to enable
dynamic powermanagement for anyone.
New drivers:
Renesas r-car display unit.
Other highlights:
- core: GEM CMA prime support, use new w/w mutexs for TTM
reservations, cursor hotspot, doc updates
- dvo chips: chrontel 7010B support
- i915: Haswell (fbc, ips, vecs, watermarks, audio powerwell),
Valleyview (enabled by default, rc6), lots of pll reworking, 30bpp
support (this time for sure)
- nouveau: async buffer object deletion, context/register init
updates, kernel vp2 engine support, GF117 support, GK110 accel
support (with external nvidia ucode), context cleanups.
- exynos: memory leak fixes, Add S3C64XX SoC series support, device
tree updates, common clock framework support,
- qxl: cursor hotspot support, multi-monitor support, suspend/resume
support
- mgag200: hw cursor support, g200 mode limiting
- shmobile: prime support
- tegra: fixes mostly
I've been banging on this quite a lot due to the size of it, and it
seems to okay on everything I've tested it on."
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (811 commits)
drm/radeon/dpm: implement vblank_too_short callback for si
drm/radeon/dpm: implement vblank_too_short callback for cayman
drm/radeon/dpm: implement vblank_too_short callback for btc
drm/radeon/dpm: implement vblank_too_short callback for evergreen
drm/radeon/dpm: implement vblank_too_short callback for 7xx
drm/radeon/dpm: add checks against vblank time
drm/radeon/dpm: add helper to calculate vblank time
drm/radeon: remove stray line in old pm code
drm/radeon/dpm: fix display_gap programming on rv7xx
drm/nvc0/gr: fix gpc firmware regression
drm/nouveau: fix minor thinko causing bo moves to not be async on kepler
drm/radeon/dpm: implement force performance level for TN
drm/radeon/dpm: implement force performance level for ON/LN
drm/radeon/dpm: implement force performance level for SI
drm/radeon/dpm: implement force performance level for cayman
drm/radeon/dpm: implement force performance levels for 7xx/eg/btc
drm/radeon/dpm: add infrastructure to force performance levels
drm/radeon: fix surface setup on r1xx
drm/radeon: add support for 3d perf states on older asics
drm/radeon: set default clocks for SI when DPM is disabled
...
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into drm-next
A few more DPM fixes based on user testing.
* 'drm-next-3.11' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon/dpm: implement vblank_too_short callback for si
drm/radeon/dpm: implement vblank_too_short callback for cayman
drm/radeon/dpm: implement vblank_too_short callback for btc
drm/radeon/dpm: implement vblank_too_short callback for evergreen
drm/radeon/dpm: implement vblank_too_short callback for 7xx
drm/radeon/dpm: add checks against vblank time
drm/radeon/dpm: add helper to calculate vblank time
drm/radeon: remove stray line in old pm code
drm/radeon/dpm: fix display_gap programming on rv7xx
drm/radeon/dpm: implement force performance level for TN
drm/radeon/dpm: implement force performance level for ON/LN
drm/radeon/dpm: implement force performance level for SI
drm/radeon/dpm: implement force performance level for cayman
drm/radeon/dpm: implement force performance levels for 7xx/eg/btc
drm/radeon/dpm: add infrastructure to force performance levels
drm/radeon: fix surface setup on r1xx
drm/radeon: add support for 3d perf states on older asics
drm/radeon: set default clocks for SI when DPM is disabled
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Check if we can switch the mclk during the vblank time otherwise
we may get artifacts on the screen when the mclk changes.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Check if we can switch the mclk during the vblank time otherwise
we may get artifacts on the screen when the mclk changes.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Check if we can switch the mclk during the vblank time otherwise
we may get artifacts on the screen when the mclk changes.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Check if we can switch the mclk during the vblank time otherwise
we may get artifacts on the screen when the mclk changes.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Check if we can switch the mclk during the vblank time otherwise
we may get artifacts on the screen when the mclk changes.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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If the vblank time is too short to adjust mclk,
assume multiple displays (no mclk adjustments).
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Required for checking vblank time for mclk changes.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Looks like a remnant from an old rebase.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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