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authorTvrtko Ursulin <tvrtko.ursulin@igalia.com>2024-08-13 11:25:04 +0100
committerMaíra Canal <mcanal@igalia.com>2024-08-28 11:36:53 -0300
commit9d824c7fce58f59982228aa85b0376b113cdfa35 (patch)
treee4d362dd570333a34e324fe318f5edf9313c95fa /drivers/gpu/drm/arm
parentb49420d6a1aeb399e5b107fc6eb8584d0860fbd7 (diff)
drm/v3d: Disable preemption while updating GPU stats
We forgot to disable preemption around the write_seqcount_begin/end() pair while updating GPU stats: [ ] WARNING: CPU: 2 PID: 12 at include/linux/seqlock.h:221 __seqprop_assert.isra.0+0x128/0x150 [v3d] [ ] Workqueue: v3d_bin drm_sched_run_job_work [gpu_sched] <...snip...> [ ] Call trace: [ ] __seqprop_assert.isra.0+0x128/0x150 [v3d] [ ] v3d_job_start_stats.isra.0+0x90/0x218 [v3d] [ ] v3d_bin_job_run+0x23c/0x388 [v3d] [ ] drm_sched_run_job_work+0x520/0x6d0 [gpu_sched] [ ] process_one_work+0x62c/0xb48 [ ] worker_thread+0x468/0x5b0 [ ] kthread+0x1c4/0x1e0 [ ] ret_from_fork+0x10/0x20 Fix it. Cc: Maíra Canal <mcanal@igalia.com> Cc: stable@vger.kernel.org # v6.10+ Fixes: 6abe93b621ab ("drm/v3d: Fix race-condition between sysfs/fdinfo and interrupt handler") Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com> Acked-by: Maíra Canal <mcanal@igalia.com> Signed-off-by: Maíra Canal <mcanal@igalia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240813102505.80512-1-tursulin@igalia.com
Diffstat (limited to 'drivers/gpu/drm/arm')
0 files changed, 0 insertions, 0 deletions