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drm/amdgpu: add zero timeout check in amdgpu_fence_wait_seq_timeout
author
Jack Xiao
<Jack.Xiao@amd.com>
Thu, 4 Jun 2015 04:18:27 +0000
(12:18 +0800)
committer
Alex Deucher
<alexander.deucher@amd.com>
Fri, 5 Jun 2015 14:59:25 +0000
(10:59 -0400)
Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
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diff --git
a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
index
9ce6023
..
48ca637
100644
(file)
--- a/
drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
+++ b/
drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
@@
-522,6
+522,10
@@
long amdgpu_fence_wait_seq_timeout(struct amdgpu_device *adev, u64 *target_seq,
bool signaled;
int i, r;
+ if (timeout == 0) {
+ return amdgpu_fence_any_seq_signaled(adev, target_seq);
+ }
+
while (!amdgpu_fence_any_seq_signaled(adev, target_seq)) {
/* Save current sequence values, used to check for GPU lockups */