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drm/amdgpu: annotate eviction fence signaling path

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Make sure lockdep sees the dependencies here.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Sunil Khatri <sunil.khatri@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2026-02-02 13:06:25 +01:00 committed by Alex Deucher
parent 809773e066
commit fc61df1516
1 changed files with 10 additions and 0 deletions
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10
drivers/gpu/drm/amd/amdgpu/amdgpu_eviction_fence.c
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@ -64,8 +64,17 @@ amdgpu_eviction_fence_suspend_worker(struct work_struct *work)
container_of(evf_mgr, struct amdgpu_fpriv, evf_mgr); container_of(evf_mgr, struct amdgpu_fpriv, evf_mgr);
struct amdgpu_userq_mgr *uq_mgr = &fpriv->userq_mgr; struct amdgpu_userq_mgr *uq_mgr = &fpriv->userq_mgr;
struct dma_fence *ev_fence; struct dma_fence *ev_fence;
bool cookie;
mutex_lock(&uq_mgr->userq_mutex); mutex_lock(&uq_mgr->userq_mutex);
/*
* This is intentionally after taking the userq_mutex since we do
* allocate memory while holding this lock, but only after ensuring that
* the eviction fence is signaled.
*/
cookie = dma_fence_begin_signalling();
ev_fence = amdgpu_evf_mgr_get_fence(evf_mgr); ev_fence = amdgpu_evf_mgr_get_fence(evf_mgr);
amdgpu_userq_evict(uq_mgr, !evf_mgr->shutdown); amdgpu_userq_evict(uq_mgr, !evf_mgr->shutdown);
@ -75,6 +84,7 @@ amdgpu_eviction_fence_suspend_worker(struct work_struct *work)
* next fence. * next fence.
*/ */
dma_fence_signal(ev_fence); dma_fence_signal(ev_fence);
dma_fence_end_signalling(cookie);
dma_fence_put(ev_fence); dma_fence_put(ev_fence);
mutex_unlock(&uq_mgr->userq_mutex); mutex_unlock(&uq_mgr->userq_mutex);
} }