drm/amdgpu: stop evicting encrypted BOs to swap

Swapping out encrypted BOs doesn't work because they can't change
their physical location without going through a bounce copy.

As a workaround disable evicting encrypted BOs to the system
domain for now.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Tested-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index edb5bad..aa4ea43 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -1550,6 +1550,9 @@ static bool amdgpu_ttm_bo_eviction_valuable(struct ttm_buffer_object *bo,
 
        switch (bo->mem.mem_type) {
        case TTM_PL_TT:
+               if (amdgpu_bo_is_amdgpu_bo(bo) &&
+                   amdgpu_bo_encrypted(ttm_to_amdgpu_bo(bo)))
+                       return false;
                return true;
 
        case TTM_PL_VRAM: