Reviewed-by: Arvind Yadav <[email protected]>
On 5/14/2025 9:02 PM, Alex Deucher wrote:
On Sun, May 11, 2025 at 10:21 PM Prike Liang <[email protected]> wrote:
Lock and refer to the eviction fence before the eviction fence
schedules work queue tries to signal it.
Suggested-by: Christian König <[email protected]>
Signed-off-by: Prike Liang <[email protected]>
Acked-by: Alex Deucher <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_eviction_fence.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_eviction_fence.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_eviction_fence.c
index 1a7469543db5..d5f176fef357 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_eviction_fence.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_eviction_fence.c
@@ -108,12 +108,18 @@ 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)
+ spin_unlock(&evf_mgr->ev_fence_lock);
+
+ if (ev_fence)
+ dma_fence_get(&ev_fence->base);
+ else
goto unlock;
amdgpu_userq_evict(uq_mgr, ev_fence);
+ dma_fence_put(&ev_fence->base);
unlock:
mutex_unlock(&uq_mgr->userq_mutex);
}
--
2.34.1
