Commit 9ad0d033 authored by Nirmoy Das's avatar Nirmoy Das Committed by Alex Deucher
Browse files

drm/amdgpu: introduce struct amdgpu_bo_user 



Implement a new struct amdgpu_bo_user as subclass of
struct amdgpu_bo and a function to created amdgpu_bo_user
bo with a flag to identify the owner.

v2: amdgpu_bo_to_amdgpu_bo_user -> to_amdgpu_bo_user()

Signed-off-by: default avatarNirmoy Das <nirmoy.das@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 9fd5543e

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

+28 −0
Original line number Diff line number Diff line
@@ -694,6 +694,34 @@ int amdgpu_bo_create(struct amdgpu_device *adev, 
	return r;

}



/**

 * amdgpu_bo_create_user - create an &amdgpu_bo_user buffer object

 * @adev: amdgpu device object

 * @bp: parameters to be used for the buffer object

 * @ubo_ptr: pointer to the buffer object pointer

 *

 * Create a BO to be used by user application;

 *

 * Returns:

 * 0 for success or a negative error code on failure.

 */



int amdgpu_bo_create_user(struct amdgpu_device *adev,

			  struct amdgpu_bo_param *bp,

			  struct amdgpu_bo_user **ubo_ptr)

{

	struct amdgpu_bo *bo_ptr;

	int r;



	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);

	if (r)

		return r;



	*ubo_ptr = to_amdgpu_bo_user(bo_ptr);

	return r;

}

/**

 * amdgpu_bo_validate - validate an &amdgpu_bo buffer object

 * @bo: pointer to the buffer object

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

+14 −0
Original line number Diff line number Diff line
@@ -37,6 +37,8 @@ 
#define AMDGPU_BO_INVALID_OFFSET	LONG_MAX

#define AMDGPU_BO_MAX_PLACEMENTS	3



#define to_amdgpu_bo_user(abo) container_of((abo), struct amdgpu_bo_user, bo)



struct amdgpu_bo_param {

	unsigned long			size;

	int				byte_align;
@@ -112,6 +114,15 @@ struct amdgpu_bo { 
	struct kgd_mem                  *kfd_bo;

};



struct amdgpu_bo_user {

	struct amdgpu_bo		bo;

	u64				tiling_flags;

	u64				metadata_flags;

	void				*metadata;

	u32				metadata_size;



};



static inline struct amdgpu_bo *ttm_to_amdgpu_bo(struct ttm_buffer_object *tbo)

{

	return container_of(tbo, struct amdgpu_bo, tbo);
@@ -255,6 +266,9 @@ int amdgpu_bo_create_kernel(struct amdgpu_device *adev, 
int amdgpu_bo_create_kernel_at(struct amdgpu_device *adev,

			       uint64_t offset, uint64_t size, uint32_t domain,

			       struct amdgpu_bo **bo_ptr, void **cpu_addr);

int amdgpu_bo_create_user(struct amdgpu_device *adev,

			  struct amdgpu_bo_param *bp,

			  struct amdgpu_bo_user **ubo_ptr);

void amdgpu_bo_free_kernel(struct amdgpu_bo **bo, u64 *gpu_addr,

			   void **cpu_addr);

int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr);