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drm/amdgpu: set snooped flags only on system addresses v2 

Not necessary for VRAM.

v2: no need to check if ttm is NULL.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2015-12-04 13:32:55 +01:00 committed by Alex Deucher
parent 07df04dfcf
commit 6d99905a8c
1 changed files with 4 additions and 3 deletions
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7
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
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@ -801,11 +801,12 @@ uint32_t amdgpu_ttm_tt_pte_flags(struct amdgpu_device *adev, struct ttm_tt *ttm,
if (mem && mem->mem_type != TTM_PL_SYSTEM)
flags |= AMDGPU_PTE_VALID;
if (mem && mem->mem_type == TTM_PL_TT)
if (mem && mem->mem_type == TTM_PL_TT) {
flags |= AMDGPU_PTE_SYSTEM;
if (!ttm || ttm->caching_state == tt_cached)
flags |= AMDGPU_PTE_SNOOPED;
if (ttm->caching_state == tt_cached)
flags |= AMDGPU_PTE_SNOOPED;
}
if (adev->asic_type >= CHIP_TOPAZ)
flags |= AMDGPU_PTE_EXECUTABLE;