If SDMA is not available, warn if we try and copy
a GFX12 DCC buffer with the CPU.
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 9f922ec50ea2d..884e6b6984619 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -565,10 +565,12 @@ static int amdgpu_bo_move(struct ttm_buffer_object *bo, bool evict,
}
amdgpu_bo_move_notify(bo, evict, new_mem);
- if (adev->mman.buffer_funcs_enabled)
+ if (adev->mman.buffer_funcs_enabled) {
r = amdgpu_move_blit(bo, evict, new_mem, old_mem);
- else
+ } else {
+ WARN_ON(abo->flags & AMDGPU_GEM_CREATE_GFX12_DCC);
r = -ENODEV;
+ }
if (r) {
/* Check that all memory is CPU accessible */
--
2.47.0
