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drm/amdgpu/vcn4.0.3: fix video_timeout unit mismatch in jpeg reset wait

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vcn_v4_0_3_reset_jpeg_pre_helper() passes adev->video_timeout directly
to amdgpu_fence_wait_polling(), whose timeout parameter is documented
and implemented in usecs (busy-wait loop decrementing by udelay(2)).

adev->video_timeout is set in jiffies by
amdgpu_device_get_job_timeout_settings(), via msecs_to_jiffies().
Passing it unconverted means the intended ~2s wait for outstanding
JPEG fences to complete before the JPEG queue is torn down actually
lasts only a couple of microseconds (HZ jiffies interpreted as usecs),
so pending jobs are almost never given a real chance to finish before
the reset path forces completion in the following helper.

Convert the jiffies value to usecs with jiffies_to_usecs() before
passing it to amdgpu_fence_wait_polling().

Fixes: d25c67fd9d ("drm/amdgpu/vcn4.0.3: rework reset handling")
Cc: Jesse.Zhang <Jesse.Zhang@amd.com>
Assisted-by: Claude:claude-sonnet-5
Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 5feabbd673c10ebee22b880e4d812f08974d2ef7)
Cc: stable@vger.kernel.org
This commit is contained in:
Sunil Khatri 2026-09-17 18:56:45 +05:30 committed by Alex Deucher
parent f952ed353a
commit 6b13ddbf5b
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c
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@ -1689,7 +1689,8 @@ static int vcn_v4_0_3_reset_jpeg_pre_helper(struct amdgpu_device *adev, int inst
/* if Jobs are still pending after timeout,
* We'll handle them in the bottom helper
*/
amdgpu_fence_wait_polling(ring, wait_seq, adev->video_timeout);
amdgpu_fence_wait_polling(ring, wait_seq,
jiffies_to_usecs(adev->video_timeout));
}
return 0;