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drm/amdgpu: extend lock range for race condition when gpu reset

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to cover below case:
1. A task gart bind/unbind but not add to adev->gtt_list yet
2. at this time gpu reset, gtt only recover those gtt in adev->gtt_list

Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Roger.He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Roger.He
2017-05-05 13:27:10 +08:00
committed by Alex Deucher
parent 455a7bc27c
commit 738f64ccc2
3 changed files with 19 additions and 11 deletions
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6
drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
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@@ -224,8 +224,9 @@ void amdgpu_gart_table_vram_free(struct amdgpu_device *adev)
*
* Unbinds the requested pages from the gart page table and
* replaces them with the dummy page (all asics).
* Returns 0 for success, -EINVAL for failure.
*/
void amdgpu_gart_unbind(struct amdgpu_device *adev, uint64_t offset,
int amdgpu_gart_unbind(struct amdgpu_device *adev, uint64_t offset,
int pages)
{
unsigned t;
@@ -237,7 +238,7 @@ void amdgpu_gart_unbind(struct amdgpu_device *adev, uint64_t offset,
if (!adev->gart.ready) {
WARN(1, "trying to unbind memory from uninitialized GART !\n");
return;
return -EINVAL;
}
t = offset / AMDGPU_GPU_PAGE_SIZE;
@@ -258,6 +259,7 @@ void amdgpu_gart_unbind(struct amdgpu_device *adev, uint64_t offset,
}
mb();
amdgpu_gart_flush_gpu_tlb(adev, 0);
return 0;
}
/**