From 425285d39afddaf4a9dab36045b816af0cc3e400 Mon Sep 17 00:00:00 2001 From: Prike Liang Date: Thu, 9 Nov 2023 11:37:18 +0800 Subject: 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 Acked-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c') 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 #include #include +#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__); } /** -- cgit