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| author | Prike Liang <Prike.Liang@amd.com> | 2023-11-09 11:37:18 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-11-17 09:30:51 -0500 |
| commit | 425285d39afddaf4a9dab36045b816af0cc3e400 (patch) | |
| tree | 6eb8acd2d14abb87b6dbf4073037205c7d9844ea /drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c | |
| parent | a3cc7dbe9957f856b84a504687a85e22e02a49db (diff) | |
| download | linux-425285d39afddaf4a9dab36045b816af0cc3e400.tar.gz linux-425285d39afddaf4a9dab36045b816af0cc3e400.tar.bz2 linux-425285d39afddaf4a9dab36045b816af0cc3e400.zip | |
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_dma_buf.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c index e7e87a3b2601..decbbe3d4f06 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c @@ -42,6 +42,7 @@ #include <linux/dma-fence-array.h> #include <linux/pci-p2pdma.h> #include <linux/pm_runtime.h> +#include "amdgpu_trace.h" /** * amdgpu_dma_buf_attach - &dma_buf_ops.attach implementation @@ -63,6 +64,7 @@ static int amdgpu_dma_buf_attach(struct dma_buf *dmabuf, attach->peer2peer = false; r = pm_runtime_get_sync(adev_to_drm(adev)->dev); + trace_amdgpu_runpm_reference_dumps(1, __func__); if (r < 0) goto out; @@ -70,6 +72,7 @@ static int amdgpu_dma_buf_attach(struct dma_buf *dmabuf, out: pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); + trace_amdgpu_runpm_reference_dumps(0, __func__); return r; } @@ -90,6 +93,7 @@ static void amdgpu_dma_buf_detach(struct dma_buf *dmabuf, 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__); } /** |