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From 5493ed002dee97fa3417f7f7ba51e0074d685b79 Mon Sep 17 00:00:00 2001
From: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Date: Wed, 14 Mar 2018 11:45:22 -0400
Subject: [PATCH 3809/4131] drm/amdgpu: Improve documentation of bo_ptr in
amdgpu_bo_create_kernel
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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and amdgpu_bo_create_reserved.
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 566eef6..ed4afd0 100755
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -198,13 +198,15 @@ void amdgpu_ttm_placement_from_domain(struct amdgpu_bo *abo, u32 domain)
* @size: size for the new BO
* @align: alignment for the new BO
* @domain: where to place it
- * @bo_ptr: resulting BO
+ * @bo_ptr: used to initialize BOs in structures
* @gpu_addr: GPU addr of the pinned BO
* @cpu_addr: optional CPU address mapping
*
* Allocates and pins a BO for kernel internal use, and returns it still
* reserved.
*
+ * Note: For bo_ptr new BO is only created if bo_ptr points to NULL.
+ *
* Returns 0 on success, negative error code otherwise.
*/
int amdgpu_bo_create_reserved(struct amdgpu_device *adev,
@@ -267,12 +269,14 @@ int amdgpu_bo_create_reserved(struct amdgpu_device *adev,
* @size: size for the new BO
* @align: alignment for the new BO
* @domain: where to place it
- * @bo_ptr: resulting BO
+ * @bo_ptr: used to initialize BOs in structures
* @gpu_addr: GPU addr of the pinned BO
* @cpu_addr: optional CPU address mapping
*
* Allocates and pins a BO for kernel internal use.
*
+ * Note: For bo_ptr new BO is only created if bo_ptr points to NULL.
+ *
* Returns 0 on success, negative error code otherwise.
*/
int amdgpu_bo_create_kernel(struct amdgpu_device *adev,
--
2.7.4
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