drm/amdgpu: handle domain mask checking v2

if domain is illegal, we should return error.
v2:
  remove duplicated domain checking.
Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c

@@ -229,12 +229,7 @@ int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data,
 		return -EINVAL;
 
 	/* reject invalid gem domains */
-	if (args->in.domains & ~(AMDGPU_GEM_DOMAIN_CPU |
-				 AMDGPU_GEM_DOMAIN_GTT |
-				 AMDGPU_GEM_DOMAIN_VRAM |
-				 AMDGPU_GEM_DOMAIN_GDS |
-				 AMDGPU_GEM_DOMAIN_GWS |
-				 AMDGPU_GEM_DOMAIN_OA))
+	if (args->in.domains & ~AMDGPU_GEM_DOMAIN_MASK)
 		return -EINVAL;
 
 	/* create a gem object to contain this object in */

drivers/gpu/drm/amd/amdgpu/amdgpu_object.c

@@ -360,7 +360,6 @@ static int amdgpu_bo_do_create(struct amdgpu_device *adev,
 	};
 	struct amdgpu_bo *bo;
 	unsigned long page_align, size = bp->size;
-	u32 preferred_domains;
 	size_t acc_size;
 	int r;
 
@@ -381,14 +380,8 @@ static int amdgpu_bo_do_create(struct amdgpu_device *adev,
 	drm_gem_private_object_init(adev->ddev, &bo->gem_base, size);
 	INIT_LIST_HEAD(&bo->shadow_list);
 	INIT_LIST_HEAD(&bo->va);
-	preferred_domains = bp->preferred_domain ? bp->preferred_domain :
+	bo->preferred_domains = bp->preferred_domain ? bp->preferred_domain :
 		bp->domain;
-	bo->preferred_domains = preferred_domains & (AMDGPU_GEM_DOMAIN_VRAM |
-						     AMDGPU_GEM_DOMAIN_GTT |
-						     AMDGPU_GEM_DOMAIN_CPU |
-						     AMDGPU_GEM_DOMAIN_GDS |
-						     AMDGPU_GEM_DOMAIN_GWS |
-						     AMDGPU_GEM_DOMAIN_OA);
 	bo->allowed_domains = bo->preferred_domains;
 	if (bp->type != ttm_bo_type_kernel &&
 	    bo->allowed_domains == AMDGPU_GEM_DOMAIN_VRAM)

include/uapi/drm/amdgpu_drm.h

@@ -78,6 +78,12 @@ extern "C" {
 #define AMDGPU_GEM_DOMAIN_GDS		0x8
 #define AMDGPU_GEM_DOMAIN_GWS		0x10
 #define AMDGPU_GEM_DOMAIN_OA		0x20
+#define AMDGPU_GEM_DOMAIN_MASK		(AMDGPU_GEM_DOMAIN_CPU | \
+					 AMDGPU_GEM_DOMAIN_GTT | \
+					 AMDGPU_GEM_DOMAIN_VRAM | \
+					 AMDGPU_GEM_DOMAIN_GDS | \
+					 AMDGPU_GEM_DOMAIN_GWS | \
+					 AMDGPU_GEM_DOMAIN_OA)
 
 /* Flag that CPU access will be required for the case of VRAM domain */
 #define AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED	(1 << 0)