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| author |   Chunming Zhou <david1.zhou@amd.com> | 2015-07-24 10:49:47 +0800 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2015-08-17 16:50:38 -0400 |
| commit | 176e1ab1b534368d0cd338a010aaea99067c3c6e (patch) | |
| tree | 4a30358b9d603cf62eded5032665816ec3d2de97 /drivers/gpu/drm/amd/amdgpu/amdgpu.h | |
| parent | drm/amdgpu: add sched isr to fence process (diff) | |
| download | linux-dev-176e1ab1b534368d0cd338a010aaea99067c3c6e.tar.xz linux-dev-176e1ab1b534368d0cd338a010aaea99067c3c6e.zip | |
drm/amdgpu: protect fence_process from multiple context
fence_process may be called from kthread, user thread and interrupt context.
it is possible to called concurrently, then will wake up fence queue multiple times.
Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 1b8d05ff88e7..0703fbfd5130 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -869,6 +869,7 @@ struct amdgpu_ring { struct amdgpu_fence_driver fence_drv; struct amd_gpu_scheduler *scheduler; + spinlock_t fence_lock; struct mutex *ring_lock; struct amdgpu_bo *ring_obj; volatile uint32_t *ring; |