diff options
| author | Prike Liang <Prike.Liang@amd.com> | 2024-10-24 16:51:05 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-11-04 12:05:30 -0500 |
| commit | b78612939de33ffd247f3d39eaca7fb2648801ba (patch) | |
| tree | 69b7bd59de1de2cdfa3b606f3272b4118ce7a94a /drivers/gpu/drm/amd/amdgpu | |
| parent | afe260df55ac280cd56306248cb6d8a6b0db095c (diff) | |
drm/amdgpu: Fix dummy_read_page overlapping mappings
Use the dma_map_page_attrs() with DMA_ATTR_SKIP_CPU_SYNC
attribute setting to handle the dummy page overlapping
mappings.
Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c index 256b95232de5..b2033f8352f5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c @@ -78,8 +78,9 @@ static int amdgpu_gart_dummy_page_init(struct amdgpu_device *adev) if (adev->dummy_page_addr) return 0; - adev->dummy_page_addr = dma_map_page(&adev->pdev->dev, dummy_page, 0, - PAGE_SIZE, DMA_BIDIRECTIONAL); + adev->dummy_page_addr = dma_map_page_attrs(&adev->pdev->dev, dummy_page, 0, + PAGE_SIZE, DMA_BIDIRECTIONAL, + DMA_ATTR_SKIP_CPU_SYNC); if (dma_mapping_error(&adev->pdev->dev, adev->dummy_page_addr)) { dev_err(&adev->pdev->dev, "Failed to DMA MAP the dummy page\n"); adev->dummy_page_addr = 0; @@ -99,8 +100,9 @@ void amdgpu_gart_dummy_page_fini(struct amdgpu_device *adev) { if (!adev->dummy_page_addr) return; - dma_unmap_page(&adev->pdev->dev, adev->dummy_page_addr, PAGE_SIZE, - DMA_BIDIRECTIONAL); + dma_unmap_page_attrs(&adev->pdev->dev, adev->dummy_page_addr, PAGE_SIZE, + DMA_BIDIRECTIONAL, + DMA_ATTR_SKIP_CPU_SYNC); adev->dummy_page_addr = 0; } |