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

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

View file

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