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| author |   Arvind Yadav <Arvind.Yadav@amd.com> | 2025-03-18 18:45:40 +0530 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2025-04-08 16:48:21 -0400 |
| commit | 32bd8b3ea7071ca96d4adcd0817046e09c5df415 (patch) | |
| tree | 9e15a1e201e07a148bb1291481d2a4edf9d4647d /drivers/gpu/drm/amd/amdgpu/amdgpu.h | |
| parent | drm/amdgpu/mes: warn on unexpected pipe numbers (diff) | |
| download | linux-rng-32bd8b3ea7071ca96d4adcd0817046e09c5df415.tar.xz linux-rng-32bd8b3ea7071ca96d4adcd0817046e09c5df415.zip | |
drm/amdgpu: Fix display freezing issue when resizing apps
The display is freezing because the amdgpu_userq_wait_ioctl()
is waiting for a non-user queue fence(specifically, the PT update fence).
RootCause:
The resume_work is initiated by both amdgpu_userq_suspend and
amdgpu_userqueue_ensure_ev_fence at same time. The amdgpu_userq_suspend
signals a dma-fence and subsequently triggers the resume_work, which is
intended to replace the existing fence by creating new dma-fence. However,
following this, the amdgpu_userqueue_ensure_ev_fence schedules another
resume_work that generates a new dma-fence, thereby replacing the one
created by amdgpu_userq_suspend. Consequently, the original fence will
never be signaled.
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Shashank Sharma <shashank.sharma@amd.com>
Cc: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Shashank Sharma <shashank.sharma@amd.com>
Signed-off-by: Arvind Yadav <arvind.yadav@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu.h')
0 files changed, 0 insertions, 0 deletions