drm/amdgpu: cleanup amdgpu_bo_create()

Remove shadow bo related code as vm code is creating shadow bo
using proper API. Without shadow bo code, amdgpu_bo_create() is basically
a wrapper around amdgpu_bo_do_create(). So rename amdgpu_bo_do_create()
to amdgpu_bo_create().
Signed-off-by: Nirmoy Das <nirmoy.das@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_object.c

@@ -515,7 +515,18 @@ bool amdgpu_bo_support_uswc(u64 bo_flags)
 #endif
 }
 
-static int amdgpu_bo_do_create(struct amdgpu_device *adev,
+/**
+ * amdgpu_bo_create - create an &amdgpu_bo buffer object
+ * @adev: amdgpu device object
+ * @bp: parameters to be used for the buffer object
+ * @bo_ptr: pointer to the buffer object pointer
+ *
+ * Creates an &amdgpu_bo buffer object.
+ *
+ * Returns:
+ * 0 for success or a negative error code on failure.
+ */
+int amdgpu_bo_create(struct amdgpu_device *adev,
 			       struct amdgpu_bo_param *bp,
 			       struct amdgpu_bo **bo_ptr)
 {
@@ -644,7 +655,7 @@ int amdgpu_bo_create_shadow(struct amdgpu_device *adev,
 	bp.resv = bo->tbo.base.resv;
 	bp.bo_ptr_size = sizeof(struct amdgpu_bo);
 
-	r = amdgpu_bo_do_create(adev, &bp, &bo->shadow);
+	r = amdgpu_bo_create(adev, &bp, &bo->shadow);
 	if (!r) {
 		bo->shadow->parent = amdgpu_bo_ref(bo);
 		mutex_lock(&adev->shadow_list_lock);
@@ -655,50 +666,6 @@ int amdgpu_bo_create_shadow(struct amdgpu_device *adev,
 	return r;
 }
 
-/**
- * amdgpu_bo_create - create an &amdgpu_bo buffer object
- * @adev: amdgpu device object
- * @bp: parameters to be used for the buffer object
- * @bo_ptr: pointer to the buffer object pointer
- *
- * Creates an &amdgpu_bo buffer object; and if requested, also creates a
- * shadow object.
- * Shadow object is used to backup the original buffer object, and is always
- * in GTT.
- *
- * Returns:
- * 0 for success or a negative error code on failure.
- */
-int amdgpu_bo_create(struct amdgpu_device *adev,
-		     struct amdgpu_bo_param *bp,
-		     struct amdgpu_bo **bo_ptr)
-{
-	u64 flags = bp->flags;
-	int r;
-
-	bp->flags = bp->flags & ~AMDGPU_GEM_CREATE_SHADOW;
-
-	r = amdgpu_bo_do_create(adev, bp, bo_ptr);
-	if (r)
-		return r;
-
-	if ((flags & AMDGPU_GEM_CREATE_SHADOW) && !(adev->flags & AMD_IS_APU)) {
-		if (!bp->resv)
-			WARN_ON(dma_resv_lock((*bo_ptr)->tbo.base.resv,
-							NULL));
-
-		r = amdgpu_bo_create_shadow(adev, bp->size, *bo_ptr);
-
-		if (!bp->resv)
-			dma_resv_unlock((*bo_ptr)->tbo.base.resv);
-
-		if (r)
-			amdgpu_bo_unref(bo_ptr);
-	}
-
-	return r;
-}
-
 /**
  * amdgpu_bo_create_user - create an &amdgpu_bo_user buffer object
  * @adev: amdgpu device object
@@ -720,7 +687,7 @@ int amdgpu_bo_create_user(struct amdgpu_device *adev,
 
 	bp->flags = bp->flags & ~AMDGPU_GEM_CREATE_SHADOW;
 	bp->bo_ptr_size = sizeof(struct amdgpu_bo_user);
-	r = amdgpu_bo_do_create(adev, bp, &bo_ptr);
+	r = amdgpu_bo_create(adev, bp, &bo_ptr);
 	if (r)
 		return r;