[PATCH 1/5] drm/amdgpu: allow variable BO struct creation

[Nirmoy Das]

Allow allocating BO structures with different structure size
than struct amdgpu_bo.

Signed-off-by: Nirmoy Das <nirmoy.das at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 2 ++
 drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | 1 +
 2 files changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 0bd22ed1dacf..745393472564 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -551,6 +551,8 @@ static int amdgpu_bo_do_create(struct amdgpu_device *adev,
 
 	acc_size = ttm_bo_dma_acc_size(&adev->mman.bdev, size,
 				       sizeof(struct amdgpu_bo));
+	if (bp->bo_ptr_size < sizeof(struct amdgpu_bo))
+		bp->bo_ptr_size = sizeof(struct amdgpu_bo);
 
 	bo = kzalloc(sizeof(struct amdgpu_bo), GFP_KERNEL);
 	if (bo == NULL)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
index 8cd96c9330dd..848dc0a017dd 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
@@ -40,6 +40,7 @@
 struct amdgpu_bo_param {
 	unsigned long			size;
 	int				byte_align;
+	u32				bo_ptr_size;
 	u32				domain;
 	u32				preferred_domain;
 	u64				flags;
-- 
2.30.1