xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/ttm: use a static ttm_bo_global instance

Browse Source 
As the name says we only need one global instance of ttm_bo_global.

Just use a single exported instance which is save to initialize multiple times.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2018-10-19 15:06:06 +02:00
committed by Alex Deucher
parent 56b3d20413
commit 62b53b37e4
2 changed files with 31 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
include/drm/ttm/ttm_bo_driver.h
View File

@@ -398,7 +398,7 @@ struct ttm_bo_driver {
* @swap_lru: Lru list of buffer objects used for swapping.
*/
struct ttm_bo_global {
extern struct ttm_bo_global {
/**
* Constant after init.
@@ -410,8 +410,9 @@ struct ttm_bo_global {
spinlock_t lru_lock;
/**
* Protected by device_list_mutex.
* Protected by ttm_global_mutex.
*/
unsigned int use_count;
struct list_head device_list;
/**
@@ -423,7 +424,7 @@ struct ttm_bo_global {
* Internal protection.
*/
atomic_t bo_count;
};
} ttm_bo_glob;
#define TTM_NUM_MEM_TYPES 8
@@ -568,8 +569,8 @@ void ttm_bo_mem_put(struct ttm_buffer_object *bo, struct ttm_mem_reg *mem);
void ttm_bo_mem_put_locked(struct ttm_buffer_object *bo,
struct ttm_mem_reg *mem);
void ttm_bo_global_release(struct ttm_bo_global *glob);
int ttm_bo_global_init(struct ttm_bo_global *glob);
void ttm_bo_global_release(void);
int ttm_bo_global_init(void);
int ttm_bo_device_release(struct ttm_bo_device *bdev);
@@ -906,7 +907,7 @@ struct ttm_bo_global_ref {
*/
static inline int ttm_bo_global_ref_init(struct drm_global_reference *ref)
{
return ttm_bo_global_init(ref->object);
return ttm_bo_global_init();
}
/**
@@ -920,7 +921,7 @@ static inline int ttm_bo_global_ref_init(struct drm_global_reference *ref)
*/
static inline void ttm_bo_global_ref_release(struct drm_global_reference *ref)
{
ttm_bo_global_release(ref->object);
ttm_bo_global_release();
}
#endif