platform/kernel/linux-rpi.git
3 years agoRevert "drm/amdgpu/swsmu: drop set_fan_speed_percent (v2)"
Alex Deucher [Thu, 28 Jan 2021 18:28:59 +0000 (13:28 -0500)]
Revert "drm/amdgpu/swsmu: drop set_fan_speed_percent (v2)"

On some boards the rpm interface apparently does not work at all
leading to the fan not spinning or spinning at strange speeds.
Revert this for now to fix 5.10, 5.11.  The follow on patch
fixes this properly for 5.12.

This reverts commit 8d6e65adc25e23fabbc5293b6cd320195c708dca.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1408
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
3 years agoMerge tag 'amd-drm-fixes-5.11-2021-01-21' of https://gitlab.freedesktop.org/agd5f...
Dave Airlie [Thu, 21 Jan 2021 23:43:20 +0000 (09:43 +1000)]
Merge tag 'amd-drm-fixes-5.11-2021-01-21' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-5.11-2021-01-21:

amdgpu:
- Green Sardine fixes
- Vangogh fixes
- Renoir fixes
- Misc display fixes

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210121160129.3981-1-alexander.deucher@amd.com
3 years agoMerge tag 'drm-intel-fixes-2021-01-21' of git://anongit.freedesktop.org/drm/drm-intel...
Dave Airlie [Thu, 21 Jan 2021 23:28:22 +0000 (09:28 +1000)]
Merge tag 'drm-intel-fixes-2021-01-21' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

drm/i915 fixes for v5.11-rc5:
- HDCP fixes
- PMU wakeref fix
- Fix HWSP validity race
- Fix DP protocol converter accidental 4:4:4->4:2:0 conversion for RGB

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87a6t2kzgb.fsf@intel.com
3 years agoMerge tag 'drm-misc-fixes-2021-01-20' of git://anongit.freedesktop.org/drm/drm-misc...
Dave Airlie [Thu, 21 Jan 2021 23:19:20 +0000 (09:19 +1000)]
Merge tag 'drm-misc-fixes-2021-01-20' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

Short summary of fixes pull (less than what git shortlog provides):

 * drm/atomic: Release state on error
 * drm/syncobj: Fix use-after-free
 * drm/ttm: Don't use GFP_TRANSHUGE_LIGTH
 * drm/vc4: Unify driver naming for PCM
 * drm/vram-helper: Fix memory leak in vmap

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/YAgdYGNoH7pC29rz@linux-uq9g
3 years agodrm/amdgpu: update mmhub mgcg&ls for mmhub_v2_3
Aaron Liu [Mon, 18 Jan 2021 09:05:00 +0000 (17:05 +0800)]
drm/amdgpu: update mmhub mgcg&ls for mmhub_v2_3

Starting from vangogh, the ATCL2 and DAGB0 registers relative
to mgcg/ls has changed.

For MGCG:
Replace mmMM_ATC_L2_MISC_CG with mmMM_ATC_L2_CGTT_CLK_CTRL.

For MGLS:
Replace mmMM_ATC_L2_MISC_CG with mmMM_ATC_L2_CGTT_CLK_CTRL.
Add DAGB0_(WR/RD)_CGTT_CLK_CTRL registers.

Signed-off-by: Aaron Liu <aaron.liu@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amdgpu: modify GCR_GENERAL_CNTL for Vangogh
Jinzhou Su [Mon, 18 Jan 2021 11:14:27 +0000 (19:14 +0800)]
drm/amdgpu: modify GCR_GENERAL_CNTL for Vangogh

GCR_GENERAL_CNTL is defined differently in gc_10_1_0_offset.h and
gc_10_3_0_offset.h. Update GCR_GENERAL_CNTL for Vangogh.

Signed-off-by: Jinzhou Su <Jinzhou.Su@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amdgpu/pm: no need GPU status set since mmnbif_gpu_BIF_DOORBELL_FENCE_CNTL added...
Prike Liang [Thu, 17 Dec 2020 05:55:46 +0000 (13:55 +0800)]
drm/amdgpu/pm: no need GPU status set since mmnbif_gpu_BIF_DOORBELL_FENCE_CNTL added in FSDL

In the renoir there is no need GpuChangeState message set to exit gfxoff in the s0i3 resume since
mmnbif_gpu_BIF_DOORBELL_FENCE_CNTL has been added in the s0i3 FSDL.

Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
3 years agodrm/amd/display: Fixed corruptions on HPDRX link loss restore
Vladimir Stempen [Mon, 4 Jan 2021 17:05:26 +0000 (12:05 -0500)]
drm/amd/display: Fixed corruptions on HPDRX link loss restore

[why]
Heavy corruption or blank screen reported on wake,
with 6k display connected and FEC enabled

[how]
When Disable/Enable stream for display pipes on HPDRX,
DC should take into account ODM split pipes.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Vladimir Stempen <vladimir.stempen@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Anson Jacob <anson.jacob@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/display: Use hardware sequencer functions for PG control
Nicholas Kazlauskas [Sun, 13 Dec 2020 15:59:01 +0000 (10:59 -0500)]
drm/amd/display: Use hardware sequencer functions for PG control

[Why & How]
These can differ per ASIC or not be present. Don't call the dcn20 ones
directly but rather the ones defined by the ASIC init table.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Eric Yang <eric.yang2@amd.com>
Acked-by: Anson Jacob <anson.jacob@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/display: Change function decide_dp_link_settings to avoid infinite looping
Bing Guo [Mon, 4 Jan 2021 19:09:41 +0000 (14:09 -0500)]
drm/amd/display: Change function decide_dp_link_settings to avoid infinite looping

Why:
Function decide_dp_link_settings() loops infinitely when required bandwidth
can't be supported.

How:
Check the required bandwidth against verified_link_cap before trying to
find a link setting for it.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Bing Guo <bing.guo@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Anson Jacob <anson.jacob@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/display: Allow PSTATE chnage when no displays are enabled
Aric Cyr [Thu, 29 Oct 2020 21:45:19 +0000 (17:45 -0400)]
drm/amd/display: Allow PSTATE chnage when no displays are enabled

[Why]
When no displays are currently enabled, display driver should not
disallow PSTATE switching.

[How]
Allow PSTATE switching if either the active configuration supports it,
or there are no active displays.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Anson Jacob <anson.jacob@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/display: Update dram_clock_change_latency for DCN2.1
Jake Wang [Fri, 8 Jan 2021 17:27:51 +0000 (12:27 -0500)]
drm/amd/display: Update dram_clock_change_latency for DCN2.1

[WHY]
dram clock change latencies get updated using ddr4 latency table, but
that update does not happen before validation. This value
should not be the default and should be number received from
df for better mode support.
This may cause a PState hang on high refresh panels with short vblanks
such as on 1080p 360hz or 300hz panels.

[HOW]
Update latency from 23.84 to 11.72.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Jake Wang <haonan.wang2@amd.com>
Reviewed-by: Sung Lee <Sung.Lee@amd.com>
Acked-by: Anson Jacob <anson.jacob@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amdgpu: remove gpu info firmware of green sardine
Huang Rui [Tue, 19 Jan 2021 05:35:21 +0000 (13:35 +0800)]
drm/amdgpu: remove gpu info firmware of green sardine

The ip discovery is supported on green sardine, it doesn't need gpu info
firmware anymore.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Prike Liang <Prike.Liang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 5.10.x
3 years agodrm/amd/display: DCN2X Find Secondary Pipe properly in MPO + ODM Case
Sung Lee [Tue, 5 Jan 2021 19:32:29 +0000 (14:32 -0500)]
drm/amd/display: DCN2X Find Secondary Pipe properly in MPO + ODM Case

[WHY]
Previously as MPO + ODM Combine was not supported, finding secondary pipes
for each case was mutually exclusive. Now that both are supported at the same
time, both cases should be taken into account when finding a secondary pipe.

[HOW]
If a secondary pipe cannot be found based on previous bottom pipe,
search for a second pipe using next_odm_pipe instead.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Sung Lee <sung.lee@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Anson Jacob <anson.jacob@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 5.10.x
3 years agodrm/syncobj: Fix use-after-free
Daniel Vetter [Tue, 19 Jan 2021 13:03:18 +0000 (14:03 +0100)]
drm/syncobj: Fix use-after-free

While reviewing Christian's annotation patch I noticed that we have a
user-after-free for the WAIT_FOR_SUBMIT case: We drop the syncobj
reference before we've completed the waiting.

Of course usually there's nothing bad happening here since userspace
keeps the reference, but we can't rely on userspace to play nice here!

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Fixes: bc9c80fe01a2 ("drm/syncobj: use the timeline point in drm_syncobj_find_fence v4")
Reviewed-by: Christian König <christian.koenig@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v5.2+
Link: https://patchwork.freedesktop.org/patch/msgid/20210119130318.615145-1-daniel.vetter@ffwll.ch
3 years agodrm/vram-helper: Reuse existing page mappings in vmap
Thomas Zimmermann [Mon, 18 Jan 2021 14:46:39 +0000 (15:46 +0100)]
drm/vram-helper: Reuse existing page mappings in vmap

For performance, BO page mappings can stay in place even if the
map counter has returned to 0. In these cases, the existing page
mapping has to be reused by the next vmap operation. Otherwise
a new mapping would be installed and the old mapping's pages leak.

Fix the issue by reusing existing page mappings for vmap operations.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 1086db71a1db ("drm/vram-helper: Remove invariant parameters from internal kmap function")
Acked-by: Christian König <christian.koenig@amd.com>
Tested-by: Eli Cohen <elic@nvidia.com>
Reported-by: Eli Cohen <elic@nvidia.com>
Reported-by: kernel test robot <oliver.sang@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Christian König <christian.koenig@amd.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Link: https://patchwork.freedesktop.org/patch/msgid/20210118144639.27307-1-tzimmermann@suse.de
3 years agodrm/atomic: put state on error path
Pan Bian [Tue, 19 Jan 2021 12:11:27 +0000 (04:11 -0800)]
drm/atomic: put state on error path

Put the state before returning error code.

Fixes: 44596b8c4750 ("drm/atomic: Unify conflicting encoder handling.")
Signed-off-by: Pan Bian <bianpan2016@163.com>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210119121127.84127-1-bianpan2016@163.com
3 years agodrm/i915: Only enable DFP 4:4:4->4:2:0 conversion when outputting YCbCr 4:4:4
Ville Syrjälä [Mon, 18 Jan 2021 15:43:55 +0000 (17:43 +0200)]
drm/i915: Only enable DFP 4:4:4->4:2:0 conversion when outputting YCbCr 4:4:4

Let's not enable the 4:4:4->4:2:0 conversion bit in the DFP unless we're
actually outputting YCbCr 4:4:4. It would appear some protocol
converters blindy consult this bit even when the source is outputting
RGB, resulting in a visual mess.

Cc: stable@vger.kernel.org
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/2914
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210111164111.13302-1-ville.syrjala@linux.intel.com
Fixes: 181567aa9f0d ("drm/i915: Do YCbCr 444->420 conversion via DP protocol converters")
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
(cherry picked from commit 3170a21f7059c4660c469f59bf529f372a57da5f)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210118154355.24453-1-ville.syrjala@linux.intel.com
3 years agodrm/i915: Check for rq->hwsp validity after acquiring RCU lock
Chris Wilson [Mon, 18 Jan 2021 10:17:55 +0000 (10:17 +0000)]
drm/i915: Check for rq->hwsp validity after acquiring RCU lock

Since we allow removing the timeline map at runtime, there is a risk
that rq->hwsp points into a stale page. To control that risk, we hold
the RCU read lock while reading *rq->hwsp, but we missed a couple of
important barriers. First, the unpinning / removal of the timeline map
must be after all RCU readers into that map are complete, i.e. after an
rcu barrier (in this case courtesy of call_rcu()). Secondly, we must
make sure that the rq->hwsp we are about to dereference under the RCU
lock is valid. In this case, we make the rq->hwsp pointer safe during
i915_request_retire() and so we know that rq->hwsp may become invalid
only after the request has been signaled. Therefore is the request is
not yet signaled when we acquire rq->hwsp under the RCU, we know that
rq->hwsp will remain valid for the duration of the RCU read lock.

This is a very small window that may lead to either considering the
request not completed (causing a delay until the request is checked
again, any wait for the request is not affected) or dereferencing an
invalid pointer.

Fixes: 3adac4689f58 ("drm/i915: Introduce concept of per-timeline (context) HWSP")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: <stable@vger.kernel.org> # v5.1+
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201218122421.18344-1-chris@chris-wilson.co.uk
(cherry picked from commit 9bb36cf66091ddf2d8840e5aa705ad3c93a6279b)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210118101755.476744-1-chris@chris-wilson.co.uk
3 years agodrm/i915/pmu: Don't grab wakeref when enabling events
Tvrtko Ursulin [Mon, 18 Jan 2021 10:07:24 +0000 (10:07 +0000)]
drm/i915/pmu: Don't grab wakeref when enabling events

Chris found a CI report which points out calling intel_runtime_pm_get from
inside i915_pmu_enable hook is not allowed since it can be invoked from
hard irq context. This is something we knew but forgot, so lets fix it
once again.

We do this by syncing the internal book keeping with hardware rc6 counter
on driver load.

v2:
 * Always sync on parking and fully sync on init.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Fixes: f4e9894b6952 ("drm/i915/pmu: Correct the rc6 offset upon enabling")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20201214094349.3563876-1-tvrtko.ursulin@linux.intel.com
(cherry picked from commit dbe13ae1d6abaab417edf3c37601c6a56594a4cd)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210118100724.465555-1-chris@chris-wilson.co.uk
3 years agodrm/i915/gt: Prevent use of engine->wa_ctx after error
Chris Wilson [Mon, 18 Jan 2021 09:53:32 +0000 (09:53 +0000)]
drm/i915/gt: Prevent use of engine->wa_ctx after error

On error we unpin and free the wa_ctx.vma, but do not clear any of the
derived flags. During lrc_init, we look at the flags and attempt to
dereference the wa_ctx.vma if they are set. To protect the error path
where we try to limp along without the wa_ctx, make sure we clear those
flags!

Reported-by: Matt Roper <matthew.d.roper@intel.com>
Fixes: 604a8f6f1e33 ("drm/i915/lrc: Only enable per-context and per-bb buffers if set")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: <stable@vger.kernel.org> # v4.15+
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210108204026.20682-1-chris@chris-wilson.co.uk
(cherry-picked from 5b4dc95cf7f573e927fbbd406ebe54225d41b9b2)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210118095332.458813-1-chris@chris-wilson.co.uk
3 years agodrm/vc4: Unify PCM card's driver_name
Nicolas Saenz Julienne [Fri, 15 Jan 2021 19:12:09 +0000 (20:12 +0100)]
drm/vc4: Unify PCM card's driver_name

User-space ALSA matches a card's driver name against an internal list of
aliases in order to select the correct configuration for the system.
When the driver name isn't defined, the match is performed against the
card's name.

With the introduction of RPi4 we now have two HDMI ports with two
distinct audio cards. This is reflected in their names, making them
different from previous RPi versions. With this, ALSA ultimately misses
the board's configuration on RPi4.

In order to avoid this, set "card->driver_name" to "vc4-hdmi"
unanimously.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Fixes: f437bc1ec731 ("drm/vc4: drv: Support BCM2711")
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210115191209.12852-1-nsaenzjulienne@suse.de
3 years agodrm/ttm: stop using GFP_TRANSHUGE_LIGHT
Christian König [Wed, 13 Jan 2021 13:02:04 +0000 (14:02 +0100)]
drm/ttm: stop using GFP_TRANSHUGE_LIGHT

The only flag we really need is __GFP_NOMEMALLOC, highmem depends on
dma32 and moveable/compound should never be set in the first place.

Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/413812/
Link: https://patchwork.freedesktop.org/patch/413964/
Fixes: d099fc8f540a ("drm/ttm: new TT backend allocation pool v3")
Reported-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
3 years agodrm/i915/hdcp: Get conn while content_type changed
Anshuman Gupta [Mon, 11 Jan 2021 08:11:03 +0000 (13:41 +0530)]
drm/i915/hdcp: Get conn while content_type changed

Get DRM connector reference count while scheduling a prop work
to avoid any possible destroy of DRM connector when it is in
DRM_CONNECTOR_REGISTERED state.

Fixes: a6597faa2d59 ("drm/i915: Protect workers against disappearing connectors")
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Ramalingam C <ramalingam.c@intel.com>
Tested-by: Karthik B S <karthik.b.s@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210111081120.28417-3-anshuman.gupta@intel.com
(cherry picked from commit b3c6661aad979ec3d4f5675cf3e6a35828607d6a)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
3 years agodrm/i915/hdcp: Update CP property in update_pipe
Anshuman Gupta [Mon, 11 Jan 2021 08:11:02 +0000 (13:41 +0530)]
drm/i915/hdcp: Update CP property in update_pipe

When crtc state need_modeset is true it is not necessary
it is going to be a real modeset, it can turns to be a
fastset instead of modeset.
This turns content protection property to be DESIRED and hdcp
update_pipe left with property to be in DESIRED state but
actual hdcp->value was ENABLED.

This issue is caught with DP MST setup, where we have multiple
connector in same DP_MST topology. When disabling HDCP on one of
DP MST connector leads to set the crtc state need_modeset to true
for all other crtc driving the other DP-MST topology connectors.
This turns up other DP MST connectors CP property to be DESIRED
despite the actual hdcp->value is ENABLED.
Above scenario fails the DP MST HDCP IGT test, disabling HDCP on
one MST stream should not cause to disable HDCP on another MST
stream on same DP MST topology.

v2:
- Fixed connector->base.registration_state == DRM_CONNECTOR_REGISTERED
  WARN_ON.

v3:
- Commit log improvement. [Uma]
- Added a comment before scheduling prop_work. [Uma]

Fixes: 33f9a623bfc6 ("drm/i915/hdcp: Update CP as per the kernel internal state")
Cc: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Ramalingam C <ramalingam.c@intel.com>
Tested-by: Karthik B S <karthik.b.s@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210111081120.28417-2-anshuman.gupta@intel.com
(cherry picked from commit d276e16702e2d634094f75f69df3b493f359fe31)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
3 years agoLinux 5.11-rc4
Linus Torvalds [Mon, 18 Jan 2021 00:37:05 +0000 (16:37 -0800)]
Linux 5.11-rc4

3 years agoMerge tag 'perf-tools-fixes-2021-01-17' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 17 Jan 2021 21:14:46 +0000 (13:14 -0800)]
Merge tag 'perf-tools-fixes-2021-01-17' of git://git./linux/kernel/git/acme/linux

Pull perf tools fixes from Arnaldo Carvalho de Melo:

 - Fix 'CPU too large' error in Intel PT

 - Correct event attribute sizes in 'perf inject'

 - Sync build_bug.h and kvm.h kernel copies

 - Fix bpf.h header include directive in 5sec.c 'perf trace' bpf example

 - libbpf tests fixes

 - Fix shadow stat 'perf test' for non-bash shells

 - Take cgroups into account for shadow stats in 'perf stat'

* tag 'perf-tools-fixes-2021-01-17' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf inject: Correct event attribute sizes
  perf intel-pt: Fix 'CPU too large' error
  perf stat: Take cgroups into account for shadow stats
  perf stat: Introduce struct runtime_stat_data
  libperf tests: Fail when failing to get a tracepoint id
  libperf tests: If a test fails return non-zero
  libperf tests: Avoid uninitialized variable warning
  perf test: Fix shadow stat test for non-bash shells
  tools headers: Syncronize linux/build_bug.h with the kernel sources
  tools headers UAPI: Sync kvm.h headers with the kernel sources
  perf bpf examples: Fix bpf.h header include directive in 5sec.c example

3 years agoMerge tag 'powerpc-5.11-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...
Linus Torvalds [Sun, 17 Jan 2021 20:28:58 +0000 (12:28 -0800)]
Merge tag 'powerpc-5.11-4' of git://git./linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:
 "One fix for a lack of alignment in our linker script, that can lead to
  crashes depending on configuration etc.

  One fix for the 32-bit VDSO after the C VDSO conversion.

  Thanks to Andreas Schwab, Ariel Marcovitch, and Christophe Leroy"

* tag 'powerpc-5.11-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/vdso: Fix clock_gettime_fallback for vdso32
  powerpc: Fix alignment bug within the init sections

3 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Sun, 17 Jan 2021 20:16:47 +0000 (12:16 -0800)]
Merge branch 'fixes' of git://git./linux/kernel/git/viro/vfs

Pull misc vfs fixes from Al Viro:
 "Several assorted fixes.

  I still think that audit ->d_name race is better fixed this way for
  the benefit of backports, with any possibly fancier variants done on
  top of it"

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  dump_common_audit_data(): fix racy accesses to ->d_name
  iov_iter: fix the uaccess area in copy_compat_iovec_from_user
  umount(2): move the flag validity checks first

3 years agomm: don't put pinned pages into the swap cache
Linus Torvalds [Sat, 16 Jan 2021 23:34:57 +0000 (15:34 -0800)]
mm: don't put pinned pages into the swap cache

So technically there is nothing wrong with adding a pinned page to the
swap cache, but the pinning obviously means that the page can't actually
be free'd right now anyway, so it's a bit pointless.

However, the real problem is not with it being a bit pointless: the real
issue is that after we've added it to the swap cache, we'll try to unmap
the page.  That will succeed, because the code in mm/rmap.c doesn't know
or care about pinned pages.

Even the unmapping isn't fatal per se, since the page will stay around
in memory due to the pinning, and we do hold the connection to it using
the swap cache.  But when we then touch it next and take a page fault,
the logic in do_swap_page() will map it back into the process as a
possibly read-only page, and we'll then break the page association on
the next COW fault.

Honestly, this issue could have been fixed in any of those other places:
(a) we could refuse to unmap a pinned page (which makes conceptual
sense), or (b) we could make sure to re-map a pinned page writably in
do_swap_page(), or (c) we could just make do_wp_page() not COW the
pinned page (which was what we historically did before that "mm:
do_wp_page() simplification" commit).

But while all of them are equally valid models for breaking this chain,
not putting pinned pages into the swap cache in the first place is the
simplest one by far.

It's also the safest one: the reason why do_wp_page() was changed in the
first place was that getting the "can I re-use this page" wrong is so
fraught with errors.  If you do it wrong, you end up with an incorrectly
shared page.

As a result, using "page_maybe_dma_pinned()" in either do_wp_page() or
do_swap_page() would be a serious bug since it is only a (very good)
heuristic.  Re-using the page requires a hard black-and-white rule with
no room for ambiguity.

In contrast, saying "this page is very likely dma pinned, so let's not
add it to the swap cache and try to unmap it" is an obviously safe thing
to do, and if the heuristic might very rarely be a false positive, no
harm is done.

Fixes: 09854ba94c6a ("mm: do_wp_page() simplification")
Reported-and-tested-by: Martin Raiber <martin@urbackup.org>
Cc: Pavel Begunkov <asml.silence@gmail.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Sat, 16 Jan 2021 20:25:40 +0000 (12:25 -0800)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Nine minor fixes, seven in drivers and two in the core SCSI disk
  driver (sd) which should be harmless involving removing an unused
  variable and quietening a spurious warning"

Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: sd: Remove obsolete variable in sd_remove()
  scsi: sd: Suppress spurious errors when WRITE SAME is being disabled
  scsi: scsi_debug: Fix memleak in scsi_debug_init()
  scsi: mpt3sas: Fix spelling mistake in Kconfig "compatiblity" -> "compatibility"
  scsi: qedi: Correct max length of CHAP secret
  scsi: ufs: Correct the LUN used in eh_device_reset_handler() callback
  scsi: ufs: Relocate flush of exceptional event
  scsi: ufs: Relax the condition of UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL
  scsi: ufs: Fix possible power drain during system suspend

3 years agodump_common_audit_data(): fix racy accesses to ->d_name
Al Viro [Tue, 5 Jan 2021 19:43:46 +0000 (14:43 -0500)]
dump_common_audit_data(): fix racy accesses to ->d_name

We are not guaranteed the locking environment that would prevent
dentry getting renamed right under us.  And it's possible for
old long name to be freed after rename, leading to UAF here.

Cc: stable@kernel.org # v2.6.2+
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
3 years agoMerge tag 'block-5.11-2021-01-16' of git://git.kernel.dk/linux-block
Linus Torvalds [Sat, 16 Jan 2021 19:39:58 +0000 (11:39 -0800)]
Merge tag 'block-5.11-2021-01-16' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "Just an nvme pull request via Christoph:

   - don't initialize hwmon for discover controllers (Sagi Grimberg)

   - fix iov_iter handling in nvme-tcp (Sagi Grimberg)

   - fix a preempt warning in nvme-tcp (Sagi Grimberg)

   - fix a possible NULL pointer dereference in nvme (Israel Rukshin)"

* tag 'block-5.11-2021-01-16' of git://git.kernel.dk/linux-block:
  nvme: don't intialize hwmon for discovery controllers
  nvme-tcp: fix possible data corruption with bio merges
  nvme-tcp: Fix warning with CONFIG_DEBUG_PREEMPT
  nvmet-rdma: Fix NULL deref when setting pi_enable and traddr INADDR_ANY

3 years agoMerge tag 'io_uring-5.11-2021-01-16' of git://git.kernel.dk/linux-block
Linus Torvalds [Sat, 16 Jan 2021 19:12:02 +0000 (11:12 -0800)]
Merge tag 'io_uring-5.11-2021-01-16' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:
 "We still have a pending fix for a cancelation issue, but it's still
  being investigated. In the meantime:

   - Dead mm handling fix (Pavel)

   - SQPOLL setup error handling (Pavel)

   - Flush timeout sequence fix (Marcelo)

   - Missing finish_wait() for one exit case"

* tag 'io_uring-5.11-2021-01-16' of git://git.kernel.dk/linux-block:
  io_uring: ensure finish_wait() is always called in __io_uring_task_cancel()
  io_uring: flush timeouts that should already have expired
  io_uring: do sqo disable on install_fd error
  io_uring: fix null-deref in io_disable_sqo_submit
  io_uring: don't take files/mm for a dead task
  io_uring: drop mm and files after task_work_run

3 years agoMerge tag 'riscv-for-linus-5.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 16 Jan 2021 19:00:08 +0000 (11:00 -0800)]
Merge tag 'riscv-for-linus-5.11-rc4' of git://git./linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:
 "There are a few more fixes than a normal rc4, largely due to the
  bubble introduced by the holiday break:

   - return -ENOSYS for syscall number -1, which previously returned an
     uninitialized value.

   - ensure of_clk_init() has been called in time_init(), without which
     clock drivers may not be initialized.

   - fix sifive,uart0 driver to properly display the baud rate. A fix to
     initialize MPIE that allows interrupts to be processed during
     system calls.

   - avoid erronously begin tracing IRQs when interrupts are disabled,
     which at least triggers suprious lockdep failures.

   - workaround for a warning related to calling smp_processor_id()
     while preemptible. The warning itself is suprious on currently
     availiable systems.

   - properly include the generic time VDSO calls. A fix to our kasan
     address mapping. A fix to the HiFive Unleashed device tree, which
     allows the Ethernet PHY to be properly initialized by Linux (as
     opposed to relying on the bootloader).

   - defconfig update to include SiFive's GPIO driver, which is present
     on the HiFive Unleashed and necessary to initialize the PHY.

   - avoid allocating memory while initializing reserved memory.

   - avoid allocating the last 4K of memory, as pointers there alias
     with syscall errors.

  There are also two cleanups that should have no functional effect but
  do fix build warnings:

   - drop a duplicated definition of PAGE_KERNEL_EXEC.

   - properly declare the asm register SP shim.

   - cleanup the rv32 memory size Kconfig entry, to reflect the actual
     size of memory availiable"

* tag 'riscv-for-linus-5.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  RISC-V: Fix maximum allowed phsyical memory for RV32
  RISC-V: Set current memblock limit
  RISC-V: Do not allocate memblock while iterating reserved memblocks
  riscv: stacktrace: Move register keyword to beginning of declaration
  riscv: defconfig: enable gpio support for HiFive Unleashed
  dts: phy: add GPIO number and active state used for phy reset
  dts: phy: fix missing mdio device and probe failure of vsc8541-01 device
  riscv: Fix KASAN memory mapping.
  riscv: Fixup CONFIG_GENERIC_TIME_VSYSCALL
  riscv: cacheinfo: Fix using smp_processor_id() in preemptible
  riscv: Trace irq on only interrupt is enabled
  riscv: Drop a duplicated PAGE_KERNEL_EXEC
  riscv: Enable interrupts during syscalls with M-Mode
  riscv: Fix sifive serial driver
  riscv: Fix kernel time_init()
  riscv: return -ENOSYS for syscall -1

3 years agomm: don't play games with pinned pages in clear_page_refs
Linus Torvalds [Sun, 10 Jan 2021 01:09:10 +0000 (17:09 -0800)]
mm: don't play games with pinned pages in clear_page_refs

Turning a pinned page read-only breaks the pinning after COW.  Don't do it.

The whole "track page soft dirty" state doesn't work with pinned pages
anyway, since the page might be dirtied by the pinning entity without
ever being noticed in the page tables.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agomm: fix clear_refs_write locking
Linus Torvalds [Fri, 8 Jan 2021 21:13:41 +0000 (13:13 -0800)]
mm: fix clear_refs_write locking

Turning page table entries read-only requires the mmap_sem held for
writing.

So stop doing the odd games with turning things from read locks to write
locks and back.  Just get the write lock.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agoRISC-V: Fix maximum allowed phsyical memory for RV32
Atish Patra [Mon, 11 Jan 2021 23:45:04 +0000 (15:45 -0800)]
RISC-V: Fix maximum allowed phsyical memory for RV32

Linux kernel can only map 1GB of address space for RV32 as the page offset
is set to 0xC0000000. The current description in the Kconfig is confusing
as it indicates that RV32 can support 2GB of physical memory. That is
simply not true for current kernel. In future, a 2GB split support can be
added to allow 2GB physical address space.

Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
3 years agoRISC-V: Set current memblock limit
Atish Patra [Mon, 11 Jan 2021 23:45:02 +0000 (15:45 -0800)]
RISC-V: Set current memblock limit

Currently, linux kernel can not use last 4k bytes of addressable space
because IS_ERR_VALUE macro treats those as an error. This will be an issue
for RV32 as any memblock allocator potentially allocate chunk of memory
from the end of DRAM (2GB) leading bad address error even though the
address was technically valid.

Fix this issue by limiting the memblock if available memory spans the
entire address space.

Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
3 years agoRISC-V: Do not allocate memblock while iterating reserved memblocks
Atish Patra [Mon, 11 Jan 2021 23:45:01 +0000 (15:45 -0800)]
RISC-V: Do not allocate memblock while iterating reserved memblocks

Currently, resource tree allocates memory blocks while iterating on the
list. It leads to following kernel warning because memblock allocation
also invokes memory block reservation API.

[    0.000000] ------------[ cut here ]------------
[    0.000000] WARNING: CPU: 0 PID: 0 at kernel/resource.c:795
__insert_resource+0x8e/0xd0
[    0.000000] Modules linked in:
[    0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted
5.10.0-00022-ge20097fb37e2-dirty #549
[    0.000000] epc: c00125c2 ra : c001262c sp : c1c01f50
[    0.000000]  gp : c1d456e0 tp : c1c0a980 t0 : ffffcf20
[    0.000000]  t1 : 00000000 t2 : 00000000 s0 : c1c01f60
[    0.000000]  s1 : ffffcf00 a0 : ffffff00 a1 : c1c0c0c4
[    0.000000]  a2 : 80c12b15 a3 : 80402000 a4 : 80402000
[    0.000000]  a5 : c1c0c0c4 a6 : 80c12b15 a7 : f5faf600
[    0.000000]  s2 : c1c0c0c4 s3 : c1c0e000 s4 : c1009a80
[    0.000000]  s5 : c1c0c000 s6 : c1d48000 s7 : c1613b4c
[    0.000000]  s8 : 00000fff s9 : 80000200 s10: c1613b40
[    0.000000]  s11: 00000000 t3 : c1d4a000 t4 : ffffffff

This is also unnecessary as we can pre-compute the total memblocks required
for each memory region and allocate it before the loop. It save precious
boot time not going through memblock allocation code every time.

Fixes: 00ab027a3b82 ("RISC-V: Add kernel image sections to the resource tree")

Reviewed-by: Anup Patel <anup@brainfault.org>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
3 years agoiov_iter: fix the uaccess area in copy_compat_iovec_from_user
Christoph Hellwig [Mon, 11 Jan 2021 17:19:26 +0000 (18:19 +0100)]
iov_iter: fix the uaccess area in copy_compat_iovec_from_user

sizeof needs to be called on the compat pointer, not the native one.

Fixes: 89cd35c58bc2 ("iov_iter: transparently handle compat iovecs in import_iovec")
Reported-by: David Laight <David.Laight@ACULAB.COM>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
3 years agoMerge tag 'for-5.11/dm-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 16 Jan 2021 02:01:17 +0000 (18:01 -0800)]
Merge tag 'for-5.11/dm-fixes-1' of git://git./linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:

 - Fix DM-raid's raid1 discard limits so discards work.

 - Select missing Kconfig dependencies for DM integrity and zoned
   targets.

 - Four fixes for DM crypt target's support to optionally bypass kcryptd
   workqueues.

 - Fix DM snapshot merge supports missing data flushes before committing
   metadata.

 - Fix DM integrity data device flushing when external metadata is used.

 - Fix DM integrity's maximum number of supported constructor arguments
   that user can request when creating an integrity device.

 - Eliminate DM core ioctl logging noise when an ioctl is issued without
   required CAP_SYS_RAWIO permission.

* tag 'for-5.11/dm-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm crypt: defer decryption to a tasklet if interrupts disabled
  dm integrity: fix the maximum number of arguments
  dm crypt: do not call bio_endio() from the dm-crypt tasklet
  dm integrity: fix flush with external metadata device
  dm: eliminate potential source of excessive kernel log noise
  dm snapshot: flush merged data before committing metadata
  dm crypt: use GFP_ATOMIC when allocating crypto requests from softirq
  dm crypt: do not wait for backlogged crypto request completion in softirq
  dm zoned: select CONFIG_CRC32
  dm integrity: select CRYPTO_SKCIPHER
  dm raid: fix discard limits for raid1

3 years agoMerge branch 'akpm' (patches from Andrew)
Linus Torvalds [Fri, 15 Jan 2021 23:25:45 +0000 (15:25 -0800)]
Merge branch 'akpm' (patches from Andrew)

Merge misc fixes from Andrew Morton:
 "10 patches.

  Subsystems affected by this patch series: MAINTAINERS and mm (slub,
  pagealloc, memcg, kasan, vmalloc, migration, hugetlb, memory-failure,
  and process_vm_access)"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm/process_vm_access.c: include compat.h
  mm,hwpoison: fix printing of page flags
  MAINTAINERS: add Vlastimil as slab allocators maintainer
  mm/hugetlb: fix potential missing huge page size info
  mm: migrate: initialize err in do_migrate_pages
  mm/vmalloc.c: fix potential memory leak
  arm/kasan: fix the array size of kasan_early_shadow_pte[]
  mm/memcontrol: fix warning in mem_cgroup_page_lruvec()
  mm/page_alloc: add a missing mm_page_alloc_zone_locked() tracepoint
  mm, slub: consider rest of partial list if acquire_slab() fails

3 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Linus Torvalds [Fri, 15 Jan 2021 23:14:40 +0000 (15:14 -0800)]
Merge tag 'for-linus' of git://git./linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "A fairly modest set of bug fixes, nothing abnormal from the merge
  window

  The ucma patch is a bit on the larger side, but given the regression
  was recently added I've opted to forward it to the rc stream.

   - Fix a ucma memory leak introduced in v5.9 while fixing the
     Syzkaller bugs

   - Don't fail when the xarray wraps for user verbs objects

   - User triggerable oops regression from the umem page size rework

   - Error unwind bugs in usnic, ocrdma, mlx5 and cma"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/cma: Fix error flow in default_roce_mode_store
  RDMA/mlx5: Fix wrong free of blue flame register on error
  IB/mlx5: Fix error unwinding when set_has_smi_cap fails
  RDMA/umem: Avoid undefined behavior of rounddown_pow_of_two()
  RDMA/ocrdma: Fix use after free in ocrdma_dealloc_ucontext_pd()
  RDMA/usnic: Fix memleak in find_free_vf_and_create_qp_grp
  RDMA/restrack: Don't treat as an error allocation ID wrapping
  RDMA/ucma: Do not miss ctx destruction steps in some cases

3 years agoio_uring: ensure finish_wait() is always called in __io_uring_task_cancel()
Jens Axboe [Fri, 15 Jan 2021 23:04:23 +0000 (16:04 -0700)]
io_uring: ensure finish_wait() is always called in __io_uring_task_cancel()

If we enter with requests pending and performm cancelations, we'll have
a different inflight count before and after calling prepare_to_wait().
This causes the loop to restart. If we actually ended up canceling
everything, or everything completed in-between, then we'll break out
of the loop without calling finish_wait() on the waitqueue. This can
trigger a warning on exit_signals(), as we leave the task state in
TASK_UNINTERRUPTIBLE.

Put a finish_wait() after the loop to catch that case.

Cc: stable@vger.kernel.org # 5.9+
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoMerge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 15 Jan 2021 22:54:24 +0000 (14:54 -0800)]
Merge tag 'ext4_for_linus_stable' of git://git./linux/kernel/git/tytso/ext4

Pull ext4 fixes from Ted Ts'o:
 "A number of bug fixes for ext4:

   - Fix for the new fast_commit feature

   - Fix some error handling codepaths in whiteout handling and
     mountpoint sampling

   - Fix how we write ext4_error information so it goes through the
     journal when journalling is active, to avoid races that can lead to
     lost error information, superblock checksum failures, or DIF/DIX
     features"

* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: remove expensive flush on fast commit
  ext4: fix bug for rename with RENAME_WHITEOUT
  ext4: fix wrong list_splice in ext4_fc_cleanup
  ext4: use IS_ERR instead of IS_ERR_OR_NULL and set inode null when IS_ERR
  ext4: don't leak old mountpoint samples
  ext4: drop ext4_handle_dirty_super()
  ext4: fix superblock checksum failure when setting password salt
  ext4: use sbi instead of EXT4_SB(sb) in ext4_update_super()
  ext4: save error info to sb through journal if available
  ext4: protect superblock modifications with a buffer lock
  ext4: drop sync argument of ext4_commit_super()
  ext4: combine ext4_handle_error() and save_error_info()

3 years agoMerge tag '5.11-rc3-smb3' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Fri, 15 Jan 2021 22:39:21 +0000 (14:39 -0800)]
Merge tag '5.11-rc3-smb3' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Steve French:
 "Two small cifs fixes for stable (including an important handle leak
  fix) and three small cleanup patches"

* tag '5.11-rc3-smb3' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: style: replace one-element array with flexible-array
  cifs: connect: style: Simplify bool comparison
  fs: cifs: remove unneeded variable in smb3_fs_context_dup
  cifs: fix interrupted close commands
  cifs: check pointer before freeing

3 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Fri, 15 Jan 2021 21:11:51 +0000 (13:11 -0800)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:

 - Set the minimum GCC version to 5.1 for arm64 due to earlier compiler
   bugs.

 - Make atomic helpers __always_inline to avoid a section mismatch when
   compiling with clang.

 - Fix the CMA and crashkernel reservations to use ZONE_DMA (remove the
   arm64_dma32_phys_limit variable, no longer needed with a dynamic
   ZONE_DMA sizing in 5.11).

 - Remove redundant IRQ flag tracing that was leaving lockdep
   inconsistent with the hardware state.

 - Revert perf events based hard lockup detector that was causing
   smp_processor_id() to be called in preemptible context.

 - Some trivial cleanups - spelling fix, renaming S_FRAME_SIZE to
   PT_REGS_SIZE, function prototypes added.

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: selftests: Fix spelling of 'Mismatch'
  arm64: syscall: include prototype for EL0 SVC functions
  compiler.h: Raise minimum version of GCC to 5.1 for arm64
  arm64: make atomic helpers __always_inline
  arm64: rename S_FRAME_SIZE to PT_REGS_SIZE
  Revert "arm64: Enable perf events based hard lockup detector"
  arm64: entry: remove redundant IRQ flag tracing
  arm64: Remove arm64_dma32_phys_limit and its uses

3 years agoMerge tag 'mips_fixes_5.11.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips...
Linus Torvalds [Fri, 15 Jan 2021 21:07:33 +0000 (13:07 -0800)]
Merge tag 'mips_fixes_5.11.1' of git://git./linux/kernel/git/mips/linux

Pull MIPS fixes from Thomas Bogendoerfer:

 - fix coredumps on 64bit kernels

 - fix for alignment bugs preventing booting

 - fix checking for failed irq_alloc_desc calls

* tag 'mips_fixes_5.11.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  MIPS: OCTEON: fix unreachable code in octeon_irq_init_ciu
  MIPS: relocatable: fix possible boot hangup with KASLR enabled
  MIPS: Fix malformed NT_FILE and NT_SIGINFO in 32bit coredumps
  MIPS: boot: Fix unaligned access with CONFIG_MIPS_RAW_APPENDED_DTB

3 years agoperf inject: Correct event attribute sizes
Al Grant [Tue, 24 Nov 2020 19:58:17 +0000 (19:58 +0000)]
perf inject: Correct event attribute sizes

When 'perf inject' reads a perf.data file from an older version of perf,
it writes event attributes into the output with the original size field,
but lays them out as if they had the size currently used. Readers see a
corrupt file. Update the size field to match the layout.

Signed-off-by: Al Grant <al.grant@foss.arm.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20201124195818.30603-1-al.grant@arm.com
Signed-off-by: Denis Nikitin <denik@chromium.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf intel-pt: Fix 'CPU too large' error
Adrian Hunter [Thu, 7 Jan 2021 17:41:59 +0000 (19:41 +0200)]
perf intel-pt: Fix 'CPU too large' error

In some cases, the number of cpus (nr_cpus_online) is confused with the
maximum cpu number (nr_cpus_avail), which results in the error in the
example below:

Example on system with 8 cpus:

 Before:
   # echo 0 > /sys/devices/system/cpu/cpu2/online
   # ./perf record --kcore -e intel_pt// taskset --cpu-list 7 uname
   Linux
   [ perf record: Woken up 1 times to write data ]
   [ perf record: Captured and wrote 0.147 MB perf.data ]
   # ./perf script --itrace=e
   Requested CPU 7 too large. Consider raising MAX_NR_CPUS
   0x25908 [0x8]: failed to process type: 68 [Invalid argument]

 After:
   # ./perf script --itrace=e
   #

Fixes: 8c7274691f0d ("perf machine: Replace MAX_NR_CPUS with perf_env::nr_cpus_online")
Fixes: 7df4e36a4785 ("perf session: Replace MAX_NR_CPUS with perf_env::nr_cpus_online")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Kan Liang <kan.liang@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org
Link: http://lore.kernel.org/lkml/20210107174159.24897-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf stat: Take cgroups into account for shadow stats
Namhyung Kim [Fri, 15 Jan 2021 07:11:39 +0000 (16:11 +0900)]
perf stat: Take cgroups into account for shadow stats

As of now it doesn't consider cgroups when collecting shadow stats and
metrics so counter values from different cgroups will be saved in a same
slot.  This resulted in incorrect numbers when those cgroups have
different workloads.

For example, let's look at the scenario below: cgroups A and C runs same
workload which burns a cpu while cgroup B runs a light workload.

  $ perf stat -a -e cycles,instructions --for-each-cgroup A,B,C  sleep 1

   Performance counter stats for 'system wide':

     3,958,116,522      cycles                A
     6,722,650,929      instructions          A #    2.53  insn per cycle
         1,132,741      cycles                B
           571,743      instructions          B #    0.00  insn per cycle
     4,007,799,935      cycles                C
     6,793,181,523      instructions          C #    2.56  insn per cycle

       1.001050869 seconds time elapsed

When I run 'perf stat' with single workload, it usually shows IPC around
1.7.  We can verify it (6,722,650,929.0 / 3,958,116,522 = 1.698) for cgroup A.

But in this case, since cgroups are ignored, cycles are averaged so it
used the lower value for IPC calculation and resulted in around 2.5.

  avg cycle: (3958116522 + 1132741 + 4007799935) / 3 = 2655683066
  IPC (A)  :  6722650929 / 2655683066 = 2.531
  IPC (B)  :      571743 / 2655683066 = 0.0002
  IPC (C)  :  6793181523 / 2655683066 = 2.557

We can simply compare cgroup pointers in the evsel and it'll be NULL
when cgroups are not specified.  With this patch, I can see correct
numbers like below:

  $ perf stat -a -e cycles,instructions --for-each-cgroup A,B,C  sleep 1

  Performance counter stats for 'system wide':

     4,171,051,687      cycles                A
     7,219,793,922      instructions          A #    1.73  insn per cycle
         1,051,189      cycles                B
           583,102      instructions          B #    0.55  insn per cycle
     4,171,124,710      cycles                C
     7,192,944,580      instructions          C #    1.72  insn per cycle

       1.007909814 seconds time elapsed

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20210115071139.257042-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf stat: Introduce struct runtime_stat_data
Namhyung Kim [Fri, 15 Jan 2021 07:11:38 +0000 (16:11 +0900)]
perf stat: Introduce struct runtime_stat_data

To pass more info to the saved_value in the runtime_stat, add a new
struct runtime_stat_data.  Currently it only has 'ctx' field but later
patch will add more.

Note that we intentionally pass 0 as ctx to clock-related events for
compatibility.  It was already there in a few places.  So move the code
into the saved_value_lookup() explicitly and add a comment.

Suggested-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20210115071139.257042-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agolibperf tests: Fail when failing to get a tracepoint id
Ian Rogers [Thu, 14 Jan 2021 18:02:50 +0000 (10:02 -0800)]
libperf tests: Fail when failing to get a tracepoint id

Permissions are necessary to get a tracepoint id. Fail the test when the
read fails.

Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20210114180250.3853825-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agolibperf tests: If a test fails return non-zero
Ian Rogers [Thu, 14 Jan 2021 18:02:49 +0000 (10:02 -0800)]
libperf tests: If a test fails return non-zero

If a test fails return -1 rather than 0. This is consistent with the
return value in test-cpumap.c

Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20210114180250.3853825-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agolibperf tests: Avoid uninitialized variable warning
Ian Rogers [Thu, 14 Jan 2021 21:23:04 +0000 (13:23 -0800)]
libperf tests: Avoid uninitialized variable warning

The variable 'bf' is read (for a write call) without being initialized
triggering a memory sanitizer warning. Use 'bf' in the read and switch
the write to reading from a string.

Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20210114212304.4018119-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoext4: remove expensive flush on fast commit
Daejun Park [Wed, 6 Jan 2021 01:32:42 +0000 (10:32 +0900)]
ext4: remove expensive flush on fast commit

In the fast commit, it adds REQ_FUA and REQ_PREFLUSH on each fast
commit block when barrier is enabled.  However, in recovery phase,
ext4 compares CRC value in the tail.  So it is sufficient to add
REQ_FUA and REQ_PREFLUSH on the block that has tail.

Signed-off-by: Daejun Park <daejun7.park@samsung.com>
Reviewed-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Link: https://lore.kernel.org/r/20210106013242epcms2p5b6b4ed8ca86f29456fdf56aa580e74b4@epcms2p5
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
3 years agoext4: fix bug for rename with RENAME_WHITEOUT
yangerkun [Tue, 5 Jan 2021 06:28:57 +0000 (14:28 +0800)]
ext4: fix bug for rename with RENAME_WHITEOUT

We got a "deleted inode referenced" warning cross our fsstress test. The
bug can be reproduced easily with following steps:

  cd /dev/shm
  mkdir test/
  fallocate -l 128M img
  mkfs.ext4 -b 1024 img
  mount img test/
  dd if=/dev/zero of=test/foo bs=1M count=128
  mkdir test/dir/ && cd test/dir/
  for ((i=0;i<1000;i++)); do touch file$i; done # consume all block
  cd ~ && renameat2(AT_FDCWD, /dev/shm/test/dir/file1, AT_FDCWD,
    /dev/shm/test/dir/dst_file, RENAME_WHITEOUT) # ext4_add_entry in
    ext4_rename will return ENOSPC!!
  cd /dev/shm/ && umount test/ && mount img test/ && ls -li test/dir/file1
  We will get the output:
  "ls: cannot access 'test/dir/file1': Structure needs cleaning"
  and the dmesg show:
  "EXT4-fs error (device loop0): ext4_lookup:1626: inode #2049: comm ls:
  deleted inode referenced: 139"

ext4_rename will create a special inode for whiteout and use this 'ino'
to replace the source file's dir entry 'ino'. Once error happens
latter(the error above was the ENOSPC return from ext4_add_entry in
ext4_rename since all space has been consumed), the cleanup do drop the
nlink for whiteout, but forget to restore 'ino' with source file. This
will trigger the bug describle as above.

Signed-off-by: yangerkun <yangerkun@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: stable@vger.kernel.org
Fixes: cd808deced43 ("ext4: support RENAME_WHITEOUT")
Link: https://lore.kernel.org/r/20210105062857.3566-1-yangerkun@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
3 years agoext4: fix wrong list_splice in ext4_fc_cleanup
Daejun Park [Wed, 30 Dec 2020 09:48:51 +0000 (18:48 +0900)]
ext4: fix wrong list_splice in ext4_fc_cleanup

After full/fast commit, entries in staging queue are promoted to main
queue. In ext4_fs_cleanup function, it splice to staging queue to
staging queue.

Fixes: aa75f4d3daaeb ("ext4: main fast-commit commit path")
Signed-off-by: Daejun Park <daejun7.park@samsung.com>
Reviewed-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Link: https://lore.kernel.org/r/20201230094851epcms2p6eeead8cc984379b37b2efd21af90fd1a@epcms2p6
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
3 years agoext4: use IS_ERR instead of IS_ERR_OR_NULL and set inode null when IS_ERR
Yi Li [Wed, 30 Dec 2020 03:38:27 +0000 (11:38 +0800)]
ext4: use IS_ERR instead of IS_ERR_OR_NULL and set inode null when IS_ERR

1: ext4_iget/ext4_find_extent never returns NULL, use IS_ERR
instead of IS_ERR_OR_NULL to fix this.

2: ext4_fc_replay_inode should set the inode to NULL when IS_ERR.
and go to call iput properly.

Fixes: 8016e29f4362 ("ext4: fast commit recovery path")
Signed-off-by: Yi Li <yili@winhong.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20201230033827.3996064-1-yili@winhong.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
3 years agoperf test: Fix shadow stat test for non-bash shells
Namhyung Kim [Thu, 14 Jan 2021 05:06:09 +0000 (14:06 +0900)]
perf test: Fix shadow stat test for non-bash shells

It was using some bash-specific features and failed to parse when
running with a different shell like below:

  root@kbl-ppc:~/kbl-ws/perf-dev/lck-9077/acme.tmp/tools/perf# ./perf test 83 -vv
  83: perf stat metrics (shadow stat) test                            :
  --- start ---
  test child forked, pid 3922
  ./tests/shell/stat+shadow_stat.sh: 19: ./tests/shell/stat+shadow_stat.sh: [[: not found
  ./tests/shell/stat+shadow_stat.sh: 24: ./tests/shell/stat+shadow_stat.sh: [[: not found
  ./tests/shell/stat+shadow_stat.sh: 30: ./tests/shell/stat+shadow_stat.sh: [[: not found
  (standard_in) 2: syntax error
  ./tests/shell/stat+shadow_stat.sh: 36: ./tests/shell/stat+shadow_stat.sh: [[: not found
  ./tests/shell/stat+shadow_stat.sh: 19: ./tests/shell/stat+shadow_stat.sh: [[: not found
  ./tests/shell/stat+shadow_stat.sh: 24: ./tests/shell/stat+shadow_stat.sh: [[: not found
  ./tests/shell/stat+shadow_stat.sh: 30: ./tests/shell/stat+shadow_stat.sh: [[: not found
  (standard_in) 2: syntax error
  ./tests/shell/stat+shadow_stat.sh: 36: ./tests/shell/stat+shadow_stat.sh: [[: not found
  ./tests/shell/stat+shadow_stat.sh: 45: ./tests/shell/stat+shadow_stat.sh: declare: not found
  test child finished with -1
  ---- end ----
  perf stat metrics (shadow stat) test: FAILED!

Reported-by: Jin Yao <yao.jin@linux.intel.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Laight <david.laight@aculab.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20210114050609.1258820-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agotools headers: Syncronize linux/build_bug.h with the kernel sources
Arnaldo Carvalho de Melo [Thu, 14 Jan 2021 15:35:27 +0000 (12:35 -0300)]
tools headers: Syncronize linux/build_bug.h with the kernel sources

To pick up the changes in:

  3a176b94609a18f5 ("Revert "kbuild: avoid static_assert for genksyms"")

And silence this perf build warning:

  Warning: Kernel ABI header at 'tools/include/linux/build_bug.h' differs from latest version at 'include/linux/build_bug.h'
  diff -u tools/include/linux/build_bug.h include/linux/build_bug.h

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agotools headers UAPI: Sync kvm.h headers with the kernel sources
Arnaldo Carvalho de Melo [Thu, 14 Jan 2021 15:26:08 +0000 (12:26 -0300)]
tools headers UAPI: Sync kvm.h headers with the kernel sources

To pick the changes in:

  647daca25d24fb6e ("KVM: SVM: Add support for booting APs in an SEV-ES guest")

That don't cause any tooling change, just silences this perf build
warning:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
  diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf bpf examples: Fix bpf.h header include directive in 5sec.c example
Arnaldo Carvalho de Melo [Tue, 29 Dec 2020 18:41:19 +0000 (15:41 -0300)]
perf bpf examples: Fix bpf.h header include directive in 5sec.c example

It was looking at bpf/bpf.h, which caused this problem:

  # perf trace -e tools/perf/examples/bpf/5sec.c
  /home/acme/git/perf/tools/perf/examples/bpf/5sec.c:42:10: fatal error: 'bpf/bpf.h' file not found
  #include <bpf/bpf.h>
           ^~~~~~~~~~~
  1 error generated.
  ERROR: unable to compile tools/perf/examples/bpf/5sec.c
  Hint: Check error message shown above.
  Hint: You can also pre-compile it into .o using:
        clang -target bpf -O2 -c tools/perf/examples/bpf/5sec.c
        with proper -I and -D options.
  event syntax error: 'tools/perf/examples/bpf/5sec.c'
                       \___ Failed to load tools/perf/examples/bpf/5sec.c from source: Error when compiling BPF scriptlet
  #

Change that to plain bpf.h, to make it work again:

  # perf trace -e tools/perf/examples/bpf/5sec.c sleep 5s
       0.000 perf_bpf_probe:hrtimer_nanosleep(__probe_ip: -1776891872, rqtp: 5000000000)
  # perf trace -e tools/perf/examples/bpf/5sec.c/max-stack=16/ sleep 5s
       0.000 perf_bpf_probe:hrtimer_nanosleep(__probe_ip: -1776891872, rqtp: 5000000000)
                                         hrtimer_nanosleep ([kernel.kallsyms])
                                         common_nsleep ([kernel.kallsyms])
                                         __x64_sys_clock_nanosleep ([kernel.kallsyms])
                                         do_syscall_64 ([kernel.kallsyms])
                                         entry_SYSCALL_64_after_hwframe ([kernel.kallsyms])
                                         __clock_nanosleep_2 (/usr/lib64/libc-2.32.so)
  # perf trace -e tools/perf/examples/bpf/5sec.c sleep 4s
  #

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoMerge tag 'acpi-5.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Fri, 15 Jan 2021 18:55:33 +0000 (10:55 -0800)]
Merge tag 'acpi-5.11-rc4' of git://git./linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "These address a device ID bounds check error in the device enumeration
  code and fix a mistake in the documentation.

  Specifics:

   - Harden the ACPI device enumeration code against device ID length
     overflows to address a Linux VM cash on Hyper-V (Dexuan Cui).

   - Fix a mistake in the documentation of error type values for PCIe
     errors (Qiuxu Zhuo)"

* tag 'acpi-5.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  Documentation: ACPI: EINJ: Fix error type values for PCIe errors
  ACPI: scan: Harden acpi_device_add() against device ID overflows

3 years agoMerge tag 'for-linus-5.11-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 15 Jan 2021 18:52:00 +0000 (10:52 -0800)]
Merge tag 'for-linus-5.11-rc4-tag' of git://git./linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:

 - A series to fix a regression when running as a fully virtualized
   guest on an old Xen hypervisor not supporting PV interrupt callbacks
   for HVM guests.

 - A patch to add support to query Xen resource sizes (setting was
   possible already) from user mode.

* tag 'for-linus-5.11-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  x86/xen: Fix xen_hvm_smp_init() when vector callback not available
  x86/xen: Don't register Xen IPIs when they aren't going to be used
  x86/xen: Add xen_no_vector_callback option to test PCI INTX delivery
  xen: Set platform PCI device INTX affinity to CPU0
  xen: Fix event channel callback via INTX/GSI
  xen/privcmd: allow fetching resource sizes

3 years agoMerge tag 'iommu-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Fri, 15 Jan 2021 18:48:58 +0000 (10:48 -0800)]
Merge tag 'iommu-fixes' of git://git./linux/kernel/git/arm64/linux

Pull iommu fixes from Will Deacon:
 "Three IOMMU fixes for -rc4.

  The main one is a change to the Intel IOMMU driver to fix the handling
  of unaligned addresses when invalidating the TLB.

  The fix itself is a bit ugly (the caller does a bunch of shifting
  which is then effectively undone later in the callchain), but Lu has
  patches to clean all of this up in 5.12.

  Summary:

   - Fix address alignment handling for VT-D TLB invalidation

   - Enable workarounds for buggy Qualcomm firmware on two more SoCs

   - Drop duplicate #include"

* tag 'iommu-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  iommu/vt-d: Fix duplicate included linux/dma-map-ops.h
  iommu: arm-smmu-qcom: Add sdm630/msm8998 compatibles for qcom quirks
  iommu/vt-d: Fix unaligned addresses for intel_flush_svm_range_dev()

3 years agoMerge tag 'topic/nouveau-ampere-modeset-2021-01-15' of git://anongit.freedesktop...
Linus Torvalds [Fri, 15 Jan 2021 18:45:54 +0000 (10:45 -0800)]
Merge tag 'topic/nouveau-ampere-modeset-2021-01-15' of git://anongit.freedesktop.org/drm/drm

Pull drm nouveau ampere display support from Dave Airlie:
 "Ben has requested if we can include Ampere modesetting support under
  fixes, it's for new GPUs and shouldn't affect existing hardware.

  It's a bit bigger than just adding a PCI ID, but It has no effect on
  older GPUs"

* tag 'topic/nouveau-ampere-modeset-2021-01-15' of git://anongit.freedesktop.org/drm/drm:
  drm/nouveau/disp/ga10[24]: initial support
  drm/nouveau/dmaobj/ga10[24]: initial support
  drm/nouveau/i2c/ga10[024]: initial support
  drm/nouveau/gpio/ga10[024]: initial support
  drm/nouveau/bar/ga10[024]: initial support
  drm/nouveau/mmu/ga10[024]: initial support
  drm/nouveau/timer/ga10[024]: initial support
  drm/nouveau/fb/ga10[024]: initial support
  drm/nouveau/imem/ga10[024]: initial support
  drm/nouveau/privring/ga10[024]: initial support
  drm/nouveau/mc/ga10[024]: initial support
  drm/nouveau/devinit/ga10[024]: initial support
  drm/nouveau/bios/ga10[024]: initial support
  drm/nouveau/pci/ga10[024]: initial support
  drm/nouveau/core: recognise GA10[024]

3 years agoMerge branch 'acpi-docs'
Rafael J. Wysocki [Fri, 15 Jan 2021 18:15:49 +0000 (19:15 +0100)]
Merge branch 'acpi-docs'

* acpi-docs:
  Documentation: ACPI: EINJ: Fix error type values for PCIe errors

3 years agoio_uring: flush timeouts that should already have expired
Marcelo Diop-Gonzalez [Fri, 15 Jan 2021 16:54:40 +0000 (11:54 -0500)]
io_uring: flush timeouts that should already have expired

Right now io_flush_timeouts() checks if the current number of events
is equal to ->timeout.target_seq, but this will miss some timeouts if
there have been more than 1 event added since the last time they were
flushed (possible in io_submit_flush_completions(), for example). Fix
it by recording the last sequence at which timeouts were flushed so
that the number of events seen can be compared to the number of events
needed without overflow.

Signed-off-by: Marcelo Diop-Gonzalez <marcelo827@gmail.com>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoarm64: selftests: Fix spelling of 'Mismatch'
Mark Brown [Fri, 8 Jan 2021 18:31:44 +0000 (18:31 +0000)]
arm64: selftests: Fix spelling of 'Mismatch'

The SVE and FPSIMD stress tests have a spelling mistake in the output, fix
it.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20210108183144.673-1-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
3 years agoarm64: syscall: include prototype for EL0 SVC functions
Mark Rutland [Thu, 14 Jan 2021 12:48:12 +0000 (12:48 +0000)]
arm64: syscall: include prototype for EL0 SVC functions

The kbuild test robot reports that when building with W=1, GCC will warn
for a couple of missing prototypes in syscall.c:

|  arch/arm64/kernel/syscall.c:157:6: warning: no previous prototype for 'do_el0_svc' [-Wmissing-prototypes]
|    157 | void do_el0_svc(struct pt_regs *regs)
|        |      ^~~~~~~~~~
|  arch/arm64/kernel/syscall.c:164:6: warning: no previous prototype for 'do_el0_svc_compat' [-Wmissing-prototypes]
|    164 | void do_el0_svc_compat(struct pt_regs *regs)
|        |      ^~~~~~~~~~~~~~~~~

While this isn't a functional problem, as a general policy we should
include the prototype for functions wherever possible to catch any
accidental divergence between the prototype and implementation. Here we
can easily include <asm/exception.h>, so let's do so.

While there are a number of warnings elsewhere and some warnings enabled
under W=1 are of questionable benefit, this change helps to make the
code more robust as it evolved and reduces the noise somewhat, so it
seems worthwhile.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/202101141046.n8iPO3mw-lkp@intel.com
Link: https://lore.kernel.org/r/20210114124812.17754-1-mark.rutland@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
3 years agocompiler.h: Raise minimum version of GCC to 5.1 for arm64
Will Deacon [Tue, 12 Jan 2021 22:48:32 +0000 (22:48 +0000)]
compiler.h: Raise minimum version of GCC to 5.1 for arm64

GCC versions >= 4.9 and < 5.1 have been shown to emit memory references
beyond the stack pointer, resulting in memory corruption if an interrupt
is taken after the stack pointer has been adjusted but before the
reference has been executed. This leads to subtle, infrequent data
corruption such as the EXT4 problems reported by Russell King at the
link below.

Life is too short for buggy compilers, so raise the minimum GCC version
required by arm64 to 5.1.

Reported-by: Russell King <linux@armlinux.org.uk>
Suggested-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: <stable@vger.kernel.org>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20210105154726.GD1551@shell.armlinux.org.uk
Link: https://lore.kernel.org/r/20210112224832.10980-1-will@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
3 years agoMerge branch '04.01-ampere-lite' of git://github.com/skeggsb/linux into topic/nouveau...
Dave Airlie [Fri, 15 Jan 2021 04:48:14 +0000 (14:48 +1000)]
Merge branch '04.01-ampere-lite' of git://github.com/skeggsb/linux into topic/nouveau-ampere-modeset

This adds support for basic modeseting on the nvidia ampere chipsets. This code should all
be contained to just those and have no effect on current hardware.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Ben Skeggs <skeggsb@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CACAvsv5LmMP+HbDUQBf_dy1-0eS9fA32k8HWo4y5X4-7rsw-yw@mail.gmail.com
3 years agoMerge tag 'drm-fixes-2021-01-15' of git://anongit.freedesktop.org/drm/drm
Linus Torvalds [Fri, 15 Jan 2021 04:10:06 +0000 (20:10 -0800)]
Merge tag 'drm-fixes-2021-01-15' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Regular fixes for rc4, a bunch of fixes across i915, amdgpu and
  nouveau here, along with a couple of TTM fixes, and dma-buf and one
  core pageflip/modifier interaction fix.

  One notable i915 fix is a HSW GT1 regression fix that has been
  outstanding for quite a while. (Thanks to Matt Turner for kicking
  Intel into getting it fixed).

  dma-buf:
   - Fix a memory leak in CMAV heap

  core:
   - Fix format check for legacy pageflips

  ttm:
   - Pass correct address to dma_mapping_error()
   - Use mutex in pool shrinker

  i915:
   - Allow the sysadmin to override security mitigations
   - Restore clear-residual mitigations for ivb/byt
   - Limit VFE threads based on GT
   - GVT: fix vfio edid and full display detection
   - Fix DSI DSC power refcounting
   - Fix LPT CPU mode backlight takeover
   - Disable RPM wakeref assertions during driver shutdown
   - Fix DSI sequence sleeps

  amdgpu:
   - Update repo location in MAINTAINERS
   - Add some new renoir PCI IDs
   - Revert CRC UAPI changes
   - Revert OLED display fix which cases clocking problems for some systems
   - Misc vangogh fixes
   - GFX fix for sienna cichlid
   - DCN1.0 fix for pipe split
   - Fix incorrect PSP command

  amdkfd:
   - Fix possible out of bounds read in vcrat creation

  nouveau:
   - irq handling fix
   - expansion ROM fix
   - hw init dpcd disable
   - aux semaphore owner field fix
   - vram heap sizing fix
   - notifier at 0 is valid fix"

* tag 'drm-fixes-2021-01-15' of git://anongit.freedesktop.org/drm/drm: (37 commits)
  drm/nouveau/kms/nv50-: fix case where notifier buffer is at offset 0
  drm/nouveau/mmu: fix vram heap sizing
  drm/nouveau/i2c/gm200: increase width of aux semaphore owner fields
  drm/nouveau/i2c/gk110-: disable hw-initiated dpcd reads
  drm/nouveau/i2c/gk110: split out from i2c/gk104
  drm/nouveau/privring: ack interrupts the same way as RM
  drm/nouveau/bios: fix issue shadowing expansion ROMs
  drm/amd/display: Fix to be able to stop crc calculation
  Revert "drm/amd/display: Expose new CRC window property"
  Revert "drm/amdgpu/disply: fix documentation warnings in display manager"
  Revert "drm/amd/display: Fix unused variable warning"
  drm/amdgpu: set power brake sequence
  drm/amdgpu: add new device id for Renior
  drm/amdgpu: add green_sardine device id (v2)
  drm/amdgpu: fix vram type and bandwidth error for DDR5 and DDR4
  drm/amdgpu/gfx10: add updated GOLDEN_TSC_COUNT_UPPER/LOWER register offsets for VGH
  drm/amdkfd: Fix out-of-bounds read in kdf_create_vcrat_image_cpu()
  Revert "drm/amd/display: Fixed Intermittent blue screen on OLED panel"
  drm/amd/display: disable dcn10 pipe split by default
  drm/amd/display: Add a missing DCN3.01 API mapping
  ...

3 years agoMerge tag 'trace-v5.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...
Linus Torvalds [Fri, 15 Jan 2021 04:06:29 +0000 (20:06 -0800)]
Merge tag 'trace-v5.11-rc3' of git://git./linux/kernel/git/rostedt/linux-trace

Pull bootconfig fix from Steven Rostedt:
 "Update bootconf scripts for tracing_on option

  The tracing_on option is supported by bootconfig entries, but the
  scripts to convert from ftrace to a bootconfig and back were not
  updated"

* tag 'trace-v5.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tools/bootconfig: Add tracing_on support to helper scripts

3 years agoMerge branch '04.00-ampere-lite-fixes' of git://github.com/skeggsb/linux into drm...
Dave Airlie [Fri, 15 Jan 2021 03:17:54 +0000 (13:17 +1000)]
Merge branch '04.00-ampere-lite-fixes' of git://github.com/skeggsb/linux into drm-fixes

As requested, here's a tree with the non-Ampere-specific fixes split
out, as most of them are potentially relevant to already-supported
GPUs.

- irq handling fix
- expansion ROM fix
- hw init dpcd disable
- aux semaphore owner field fix
- vram heap sizing fix
- notifier at 0 is valid fix

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Ben Skeggs <skeggsb@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CACAvsv4P90mcF_ByAh+ghz+ZVD2N2bPbD7xHYYArE1kYrvsGcQ@mail.gmail.com
3 years agoriscv: stacktrace: Move register keyword to beginning of declaration
Kefeng Wang [Thu, 14 Jan 2021 02:46:57 +0000 (10:46 +0800)]
riscv: stacktrace: Move register keyword to beginning of declaration

Using global sp_in_global directly to fix the following warning,

arch/riscv/kernel/stacktrace.c:31:3: warning: ‘register’ is not at beginning of declaration [-Wold-style-declaration]
31 |   const register unsigned long current_sp = sp_in_global;
   |   ^~~~~

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
3 years agoMerge tag 'amd-drm-fixes-5.11-2021-01-14' of https://gitlab.freedesktop.org/agd5f...
Dave Airlie [Fri, 15 Jan 2021 01:56:21 +0000 (11:56 +1000)]
Merge tag 'amd-drm-fixes-5.11-2021-01-14' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-5.11-2021-01-14:

amdgpu:
- Update repo location in MAINTAINERS
- Add some new renoir PCI IDs
- Revert CRC UAPI changes
- Revert OLED display fix which cases clocking problems for some systems
- Misc vangogh fixes
- GFX fix for sienna cichlid
- DCN1.0 fix for pipe split
- Fix incorrect PSP command

amdkfd:
- Fix possible out of bounds read in vcrat creation

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210114201354.3998-1-alexander.deucher@amd.com
3 years agoMerge tag 'drm-intel-fixes-2021-01-14' of git://anongit.freedesktop.org/drm/drm-intel...
Dave Airlie [Fri, 15 Jan 2021 01:47:04 +0000 (11:47 +1000)]
Merge tag 'drm-intel-fixes-2021-01-14' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

drm/i915 fixes for v5.11-rc4:
- Allow the sysadmin to override security mitigations
- Restore clear-residual mitigations for ivb/byt
- Limit VFE threads based on GT
- GVT: fix vfio edid and full display detection
- Fix DSI DSC power refcounting
- Fix LPT CPU mode backlight takeover
- Disable RPM wakeref assertions during driver shutdown
- Fix DSI sequence sleeps

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87sg73pz42.fsf@intel.com
3 years agodrm/nouveau/disp/ga10[24]: initial support
Ben Skeggs [Wed, 13 Jan 2021 07:12:52 +0000 (17:12 +1000)]
drm/nouveau/disp/ga10[24]: initial support

UEFI/RM no longer use IED scripts from the VBIOS, though they appear to
have been updated for use by the x86 VBIOS code, so we should be able to
continue using them for the moment.

Unfortunately, we require some hacks to do so, as the BeforeLinkTraining
IED script became a pointer to an array of scripts instead, without a
revbump of the relevant tables.

There's also some changes to SOR clock divider fiddling, which are
hopefully correct enough that things work as they should.

AFAIK, GA100 shouldn't have display, so it hasn't been added.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
3 years agodrm/nouveau/dmaobj/ga10[24]: initial support
Ben Skeggs [Wed, 13 Jan 2021 07:12:52 +0000 (17:12 +1000)]
drm/nouveau/dmaobj/ga10[24]: initial support

Appears to be compatible with GV100 code, and not required on GA100, as
it shouldn't have display.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
3 years agodrm/nouveau/i2c/ga10[024]: initial support
Ben Skeggs [Wed, 13 Jan 2021 07:12:52 +0000 (17:12 +1000)]
drm/nouveau/i2c/ga10[024]: initial support

Appears to be compatible with GM200 code.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
3 years agodrm/nouveau/gpio/ga10[024]: initial support
Ben Skeggs [Wed, 13 Jan 2021 07:12:52 +0000 (17:12 +1000)]
drm/nouveau/gpio/ga10[024]: initial support

GA100 appears to be compatible with GK104 code, the others have some
register moves.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
3 years agodrm/nouveau/bar/ga10[024]: initial support
Ben Skeggs [Wed, 13 Jan 2021 07:12:52 +0000 (17:12 +1000)]
drm/nouveau/bar/ga10[024]: initial support

Appears to be compatible with TU102 code.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
3 years agodrm/nouveau/mmu/ga10[024]: initial support
Ben Skeggs [Wed, 13 Jan 2021 07:12:52 +0000 (17:12 +1000)]
drm/nouveau/mmu/ga10[024]: initial support

Appears to be compatible with TU102 code.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
3 years agodrm/nouveau/timer/ga10[024]: initial support
Ben Skeggs [Wed, 13 Jan 2021 07:12:52 +0000 (17:12 +1000)]
drm/nouveau/timer/ga10[024]: initial support

Appears to be compatible with GK20A code.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
3 years agodrm/nouveau/fb/ga10[024]: initial support
Ben Skeggs [Wed, 13 Jan 2021 07:12:52 +0000 (17:12 +1000)]
drm/nouveau/fb/ga10[024]: initial support

No VPR scrub.  GA102 and GA104 have a new VRAM size detection method.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
3 years agodrm/nouveau/imem/ga10[024]: initial support
Ben Skeggs [Wed, 13 Jan 2021 07:12:52 +0000 (17:12 +1000)]
drm/nouveau/imem/ga10[024]: initial support

Appears to be compatible with NV50 code.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
3 years agodrm/nouveau/privring/ga10[024]: initial support
Ben Skeggs [Wed, 13 Jan 2021 07:12:52 +0000 (17:12 +1000)]
drm/nouveau/privring/ga10[024]: initial support

Appears to be compatible with GM200 code.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
3 years agodrm/nouveau/mc/ga10[024]: initial support
Ben Skeggs [Wed, 13 Jan 2021 07:12:52 +0000 (17:12 +1000)]
drm/nouveau/mc/ga10[024]: initial support

Fortunately, all the interrupts we need to bring up basic display support
are contained in a single leaf register, allowing this basic (but hackish)
implementation.

There's a bunch more invasive patches to come implementing all this in a
better/more complete way, but trying to get a minimal series out first.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
3 years agodrm/nouveau/devinit/ga10[024]: initial support
Ben Skeggs [Wed, 13 Jan 2021 07:12:52 +0000 (17:12 +1000)]
drm/nouveau/devinit/ga10[024]: initial support

VPLL regs changed a bit.  There's more stuff to do around these, but it's
less invasive to stick those changes into disp for now.

None of that belongs here anymore anyhow - fix that someday.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
3 years agodrm/nouveau/bios/ga10[024]: initial support
Ben Skeggs [Wed, 13 Jan 2021 07:12:52 +0000 (17:12 +1000)]
drm/nouveau/bios/ga10[024]: initial support

Forcing PRAMIN-shadowing off for GA100, as it requires display, and we don't
know if/where the fuse register for detecting its presence is.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
3 years agodrm/nouveau/pci/ga10[024]: initial support
Ben Skeggs [Wed, 13 Jan 2021 07:12:52 +0000 (17:12 +1000)]
drm/nouveau/pci/ga10[024]: initial support

Appears to be compatible with GP100 code.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
3 years agodrm/nouveau/kms/nv50-: fix case where notifier buffer is at offset 0
Ben Skeggs [Wed, 13 Jan 2021 07:12:52 +0000 (17:12 +1000)]
drm/nouveau/kms/nv50-: fix case where notifier buffer is at offset 0

VRAM offset 0 is a valid address, triggered on GA102.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
3 years agodrm/nouveau/core: recognise GA10[024]
Ben Skeggs [Wed, 13 Jan 2021 07:12:52 +0000 (17:12 +1000)]
drm/nouveau/core: recognise GA10[024]

GA100 hidden behind a module option, as it's not been as well verified
since initial bring-up and may need additional changes.

There's no display anyway, so this can wait for a bit.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
3 years agodrm/nouveau/mmu: fix vram heap sizing
Ben Skeggs [Wed, 13 Jan 2021 07:12:52 +0000 (17:12 +1000)]
drm/nouveau/mmu: fix vram heap sizing

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
3 years agodrm/nouveau/i2c/gm200: increase width of aux semaphore owner fields
Ben Skeggs [Wed, 13 Jan 2021 07:12:52 +0000 (17:12 +1000)]
drm/nouveau/i2c/gm200: increase width of aux semaphore owner fields

Noticed while debugging GA102.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
3 years agodrm/nouveau/i2c/gk110-: disable hw-initiated dpcd reads
Ben Skeggs [Wed, 13 Jan 2021 07:12:52 +0000 (17:12 +1000)]
drm/nouveau/i2c/gk110-: disable hw-initiated dpcd reads

RM does this around transactions, and it seemed to help while debugging
AUXCH issues on GA102.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
3 years agodrm/nouveau/i2c/gk110: split out from i2c/gk104
Ben Skeggs [Wed, 13 Jan 2021 07:12:52 +0000 (17:12 +1000)]
drm/nouveau/i2c/gk110: split out from i2c/gk104

No functional changes here yet.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>