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| author | Prike Liang <Prike.Liang@amd.com> | 2023-11-09 06:37:18 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-11-17 17:30:51 +0300 |
| commit | 425285d39afddaf4a9dab36045b816af0cc3e400 (patch) | |
| tree | 6eb8acd2d14abb87b6dbf4073037205c7d9844ea /drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | |
| parent | a3cc7dbe9957f856b84a504687a85e22e02a49db (diff) | |
| download | linux-425285d39afddaf4a9dab36045b816af0cc3e400.tar.xz | |
drm/amdgpu: add amdgpu runpm usage trace for separate funcs
Add trace for amdgpu runpm separate funcs usage and this will
help debugging on the case of runpm usage missed to dereference.
In the normal case the runpm usage count referred by one kind
of functionality pairwise and usage should be changed from 1 to 0,
otherwise there will be an issue in the amdgpu runpm usage
dereference.
Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c index dc230212746a..70bff8cecfda 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c @@ -183,6 +183,7 @@ int amdgpu_fence_emit(struct amdgpu_ring *ring, struct dma_fence **f, struct amd amdgpu_ring_emit_fence(ring, ring->fence_drv.gpu_addr, seq, flags | AMDGPU_FENCE_FLAG_INT); pm_runtime_get_noresume(adev_to_drm(adev)->dev); + trace_amdgpu_runpm_reference_dumps(1, __func__); ptr = &ring->fence_drv.fences[seq & ring->fence_drv.num_fences_mask]; if (unlikely(rcu_dereference_protected(*ptr, 1))) { struct dma_fence *old; @@ -310,6 +311,7 @@ bool amdgpu_fence_process(struct amdgpu_ring *ring) dma_fence_put(fence); pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + trace_amdgpu_runpm_reference_dumps(0, __func__); } while (last_seq != seq); return true; |