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drm/radeon: add radeon_bo_ref function
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To be consistent with radeon_bo_unref, needed in the following patch.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Christian König authored and Alex Deucher committed Aug 5, 2014
1 parent e7e3160 commit 512d8af
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Showing 2 changed files with 10 additions and 0 deletions.
9 changes: 9 additions & 0 deletions drivers/gpu/drm/radeon/radeon_object.c
Original file line number Diff line number Diff line change
Expand Up @@ -236,6 +236,15 @@ void radeon_bo_kunmap(struct radeon_bo *bo)
ttm_bo_kunmap(&bo->kmap);
}

struct radeon_bo *radeon_bo_ref(struct radeon_bo *bo)
{
if (bo == NULL)
return NULL;

ttm_bo_reference(&bo->tbo);
return bo;
}

void radeon_bo_unref(struct radeon_bo **bo)
{
struct ttm_buffer_object *tbo;
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1 change: 1 addition & 0 deletions drivers/gpu/drm/radeon/radeon_object.h
Original file line number Diff line number Diff line change
Expand Up @@ -129,6 +129,7 @@ extern int radeon_bo_create(struct radeon_device *rdev,
struct radeon_bo **bo_ptr);
extern int radeon_bo_kmap(struct radeon_bo *bo, void **ptr);
extern void radeon_bo_kunmap(struct radeon_bo *bo);
extern struct radeon_bo *radeon_bo_ref(struct radeon_bo *bo);
extern void radeon_bo_unref(struct radeon_bo **bo);
extern int radeon_bo_pin(struct radeon_bo *bo, u32 domain, u64 *gpu_addr);
extern int radeon_bo_pin_restricted(struct radeon_bo *bo, u32 domain,
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