diff options
| author | Christian König <christian.koenig@amd.com> | 2018-10-19 15:06:06 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-11-05 20:21:20 +0100 |
| commit | 62b53b37e4b1500d4eb4624a44ad861cf8d3cd18 (patch) | |
| tree | 0193d438cbb744c1c423415145ca8d695cdf34c6 /include | |
| parent | drm/ttm: make the device list mutex static (diff) | |
| download | linux-62b53b37e4b1500d4eb4624a44ad861cf8d3cd18.tar.xz linux-62b53b37e4b1500d4eb4624a44ad861cf8d3cd18.zip | |
drm/ttm: use a static ttm_bo_global instance
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/drm/ttm/ttm_bo_driver.h | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index 9cec8835b88f..26be74939f10 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -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 |