[PATCH] drm/amdgpu: Mask out clear/wipe operation if buffer function is unavailable

[Lang Yu]

It makes no sense to use clear/wipe operation if buffer function is
unavailable. It's useful in bring up phase when SDMA is not ready
and/or disabled intentionally by amdgpu_ip_block_mask. This avoids
manually masking out clear/wipe operation repeatedly.

Signed-off-by: Lang Yu <lang.yu at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 3ac52d9b9d30..467c8a1911bc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -689,6 +689,10 @@ int amdgpu_bo_create(struct amdgpu_device *adev,
 	if (!amdgpu_bo_support_uswc(bo->flags))
 		bo->flags &= ~AMDGPU_GEM_CREATE_CPU_GTT_USWC;
 
+	if (!adev->mman.buffer_funcs_enabled)
+		bo->flags &= ~(AMDGPU_GEM_CREATE_VRAM_CLEARED |
+			       AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE);
+
 	bo->tbo.bdev = &adev->mman.bdev;
 	if (bp->domain & (AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA |
 			  AMDGPU_GEM_DOMAIN_GDS))
-- 
2.34.1