diff options
Diffstat (limited to 'include/drm/ttm')
| -rw-r--r-- | include/drm/ttm/ttm_bo_driver.h | 49 | ||||
| -rw-r--r-- | include/drm/ttm/ttm_object.h | 4 | ||||
| -rw-r--r-- | include/drm/ttm/ttm_placement.h | 3 |
3 files changed, 38 insertions, 18 deletions
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index 32d34ebf0706..a5183da3ef92 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -747,6 +747,7 @@ extern int ttm_bo_device_release(struct ttm_bo_device *bdev); * @bdev: A pointer to a struct ttm_bo_device to initialize. * @glob: A pointer to an initialized struct ttm_bo_global. * @driver: A pointer to a struct ttm_bo_driver set up by the caller. + * @mapping: The address space to use for this bo. * @file_page_offset: Offset into the device address space that is available * for buffer data. This ensures compatibility with other users of the * address space. @@ -758,6 +759,7 @@ extern int ttm_bo_device_release(struct ttm_bo_device *bdev); extern int ttm_bo_device_init(struct ttm_bo_device *bdev, struct ttm_bo_global *glob, struct ttm_bo_driver *driver, + struct address_space *mapping, uint64_t file_page_offset, bool need_dma32); /** @@ -786,7 +788,7 @@ extern void ttm_bo_del_sub_from_lru(struct ttm_buffer_object *bo); extern void ttm_bo_add_to_lru(struct ttm_buffer_object *bo); /** - * ttm_bo_reserve_nolru: + * __ttm_bo_reserve: * * @bo: A pointer to a struct ttm_buffer_object. * @interruptible: Sleep interruptible if waiting. @@ -807,10 +809,10 @@ extern void ttm_bo_add_to_lru(struct ttm_buffer_object *bo); * -EALREADY: Bo already reserved using @ticket. This error code will only * be returned if @use_ticket is set to true. */ -static inline int ttm_bo_reserve_nolru(struct ttm_buffer_object *bo, - bool interruptible, - bool no_wait, bool use_ticket, - struct ww_acquire_ctx *ticket) +static inline int __ttm_bo_reserve(struct ttm_buffer_object *bo, + bool interruptible, + bool no_wait, bool use_ticket, + struct ww_acquire_ctx *ticket) { int ret = 0; @@ -886,8 +888,7 @@ static inline int ttm_bo_reserve(struct ttm_buffer_object *bo, WARN_ON(!atomic_read(&bo->kref.refcount)); - ret = ttm_bo_reserve_nolru(bo, interruptible, no_wait, use_ticket, - ticket); + ret = __ttm_bo_reserve(bo, interruptible, no_wait, use_ticket, ticket); if (likely(ret == 0)) ttm_bo_del_sub_from_lru(bo); @@ -927,20 +928,14 @@ static inline int ttm_bo_reserve_slowpath(struct ttm_buffer_object *bo, } /** - * ttm_bo_unreserve_ticket + * __ttm_bo_unreserve * @bo: A pointer to a struct ttm_buffer_object. - * @ticket: ww_acquire_ctx used for reserving * - * Unreserve a previous reservation of @bo made with @ticket. + * Unreserve a previous reservation of @bo where the buffer object is + * already on lru lists. */ -static inline void ttm_bo_unreserve_ticket(struct ttm_buffer_object *bo, - struct ww_acquire_ctx *t) +static inline void __ttm_bo_unreserve(struct ttm_buffer_object *bo) { - if (!(bo->mem.placement & TTM_PL_FLAG_NO_EVICT)) { - spin_lock(&bo->glob->lru_lock); - ttm_bo_add_to_lru(bo); - spin_unlock(&bo->glob->lru_lock); - } ww_mutex_unlock(&bo->resv->lock); } @@ -953,7 +948,25 @@ static inline void ttm_bo_unreserve_ticket(struct ttm_buffer_object *bo, */ static inline void ttm_bo_unreserve(struct ttm_buffer_object *bo) { - ttm_bo_unreserve_ticket(bo, NULL); + if (!(bo->mem.placement & TTM_PL_FLAG_NO_EVICT)) { + spin_lock(&bo->glob->lru_lock); + ttm_bo_add_to_lru(bo); + spin_unlock(&bo->glob->lru_lock); + } + __ttm_bo_unreserve(bo); +} + +/** + * ttm_bo_unreserve_ticket + * @bo: A pointer to a struct ttm_buffer_object. + * @ticket: ww_acquire_ctx used for reserving + * + * Unreserve a previous reservation of @bo made with @ticket. + */ +static inline void ttm_bo_unreserve_ticket(struct ttm_buffer_object *bo, + struct ww_acquire_ctx *t) +{ + ttm_bo_unreserve(bo); } /* diff --git a/include/drm/ttm/ttm_object.h b/include/drm/ttm/ttm_object.h index 0097cc03034e..ed953f98f0e1 100644 --- a/include/drm/ttm/ttm_object.h +++ b/include/drm/ttm/ttm_object.h @@ -244,6 +244,10 @@ extern void ttm_base_object_unref(struct ttm_base_object **p_base); extern int ttm_ref_object_add(struct ttm_object_file *tfile, struct ttm_base_object *base, enum ttm_ref_type ref_type, bool *existed); + +extern bool ttm_ref_object_exists(struct ttm_object_file *tfile, + struct ttm_base_object *base); + /** * ttm_ref_object_base_unref * diff --git a/include/drm/ttm/ttm_placement.h b/include/drm/ttm/ttm_placement.h index c84ff153a564..8ed44f9bbdfb 100644 --- a/include/drm/ttm/ttm_placement.h +++ b/include/drm/ttm/ttm_placement.h @@ -65,6 +65,8 @@ * reference the buffer. * TTM_PL_FLAG_NO_EVICT means that the buffer may never * be evicted to make room for other buffers. + * TTM_PL_FLAG_TOPDOWN requests to be placed from the + * top of the memory area, instead of the bottom. */ #define TTM_PL_FLAG_CACHED (1 << 16) @@ -72,6 +74,7 @@ #define TTM_PL_FLAG_WC (1 << 18) #define TTM_PL_FLAG_SHARED (1 << 20) #define TTM_PL_FLAG_NO_EVICT (1 << 21) +#define TTM_PL_FLAG_TOPDOWN (1 << 22) #define TTM_PL_MASK_CACHING (TTM_PL_FLAG_CACHED | \ TTM_PL_FLAG_UNCACHED | \ |
