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>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 8051cb9b8c1e..8a1752ff3d8e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -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;