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drm/amdgpu: lock the eviction fence for wq signals it

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Lock and refer to the eviction fence before the eviction fence
schedules work queue tries to signal it.

Suggested-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Arvind Yadav <Arvind.Yadav@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Prike Liang 2025-04-30 10:34:14 +08:00 committed by Alex Deucher
parent eed6a6b226
commit b2c11e2708
1 changed files with 10 additions and 1 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

11
drivers/gpu/drm/amd/amdgpu/amdgpu_eviction_fence.c
View file

@ -108,13 +108,22 @@ amdgpu_eviction_fence_suspend_worker(struct work_struct *work)
struct amdgpu_eviction_fence *ev_fence; struct amdgpu_eviction_fence *ev_fence;
mutex_lock(&uq_mgr->userq_mutex); mutex_lock(&uq_mgr->userq_mutex);
spin_lock(&evf_mgr->ev_fence_lock);
ev_fence = evf_mgr->ev_fence; ev_fence = evf_mgr->ev_fence;
if (!ev_fence) if (ev_fence)
dma_fence_get(&ev_fence->base);
else
goto unlock; goto unlock;
spin_unlock(&evf_mgr->ev_fence_lock);
amdgpu_userq_evict(uq_mgr, ev_fence); amdgpu_userq_evict(uq_mgr, ev_fence);
mutex_unlock(&uq_mgr->userq_mutex);
dma_fence_put(&ev_fence->base);
return;
unlock: unlock:
spin_unlock(&evf_mgr->ev_fence_lock);
mutex_unlock(&uq_mgr->userq_mutex); mutex_unlock(&uq_mgr->userq_mutex);
} }