drm/amdgpu: protect fence_process from multiple context

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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>

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Chunming Zhou 2015-07-24 10:49:47 +08:00 • committed by Alex Deucher

parent e0d8f3c34e

commit 176e1ab1b5

3 changed files with 7 additions and 2 deletions

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1

drivers/gpu/drm/amd/amdgpu/amdgpu.h

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6

drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c

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2

drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c

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