[PATCH 5/5] drm/amdgpu: don't flush the TLB before initializing GART
Christian König
ckoenig.leichtzumerken at gmail.com
Fri Oct 20 09:20:36 UTC 2017
From: Christian König <christian.koenig at amd.com>
No point in doing this.
Signed-off-by: Christian König <christian.koenig at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
index f4370081f6e6..fe818501c520 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
@@ -332,12 +332,13 @@ int amdgpu_gart_bind(struct amdgpu_device *adev, uint64_t offset,
adev->gart.pages[p] = pagelist[i];
#endif
- if (adev->gart.ptr) {
- r = amdgpu_gart_map(adev, offset, pages, dma_addr, flags,
- adev->gart.ptr);
- if (r)
- return r;
- }
+ if (!adev->gart.ptr)
+ return 0;
+
+ r = amdgpu_gart_map(adev, offset, pages, dma_addr, flags,
+ adev->gart.ptr);
+ if (r)
+ return r;
mb();
amdgpu_gart_flush_gpu_tlb(adev, 0);
--
2.11.0
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