diff options
Diffstat (limited to 'include/drm/ttm')
| -rw-r--r-- | include/drm/ttm/ttm_bo_api.h | 26 | ||||
| -rw-r--r-- | include/drm/ttm/ttm_bo_driver.h | 16 | ||||
| -rw-r--r-- | include/drm/ttm/ttm_page_alloc.h | 8 |
3 files changed, 29 insertions, 21 deletions
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h index 50852aad260..62a0e4c4cee 100644 --- a/include/drm/ttm/ttm_bo_api.h +++ b/include/drm/ttm/ttm_bo_api.h @@ -50,10 +50,10 @@ struct drm_mm_node; * * @fpfn: first valid page frame number to put the object * @lpfn: last valid page frame number to put the object - * @num_placement: number of prefered placements - * @placement: prefered placements - * @num_busy_placement: number of prefered placements when need to evict buffer - * @busy_placement: prefered placements when need to evict buffer + * @num_placement: number of preferred placements + * @placement: preferred placements + * @num_busy_placement: number of preferred placements when need to evict buffer + * @busy_placement: preferred placements when need to evict buffer * * Structure indicating the placement you request for an object. */ @@ -158,9 +158,9 @@ struct ttm_tt; * the object is destroyed. * @event_queue: Queue for processes waiting on buffer object status change. * @mem: structure describing current placement. - * @persistant_swap_storage: Usually the swap storage is deleted for buffers + * @persistent_swap_storage: Usually the swap storage is deleted for buffers * pinned in physical memory. If this behaviour is not desired, this member - * holds a pointer to a persistant shmem object. + * holds a pointer to a persistent shmem object. * @ttm: TTM structure holding system pages. * @evicted: Whether the object was evicted without user-space knowing. * @cpu_writes: For synchronization. Number of cpu writers. @@ -221,7 +221,7 @@ struct ttm_buffer_object { */ struct ttm_mem_reg mem; - struct file *persistant_swap_storage; + struct file *persistent_swap_storage; struct ttm_tt *ttm; bool evicted; @@ -459,9 +459,9 @@ extern void ttm_bo_synccpu_write_release(struct ttm_buffer_object *bo); * user buffer object. * @interruptible: If needing to sleep to wait for GPU resources, * sleep interruptible. - * @persistant_swap_storage: Usually the swap storage is deleted for buffers + * @persistent_swap_storage: Usually the swap storage is deleted for buffers * pinned in physical memory. If this behaviour is not desired, this member - * holds a pointer to a persistant shmem object. Typically, this would + * holds a pointer to a persistent shmem object. Typically, this would * point to the shmem object backing a GEM object if TTM is used to back a * GEM user interface. * @acc_size: Accounted size for this object. @@ -490,7 +490,7 @@ extern int ttm_bo_init(struct ttm_bo_device *bdev, uint32_t page_alignment, unsigned long buffer_start, bool interrubtible, - struct file *persistant_swap_storage, + struct file *persistent_swap_storage, size_t acc_size, void (*destroy) (struct ttm_buffer_object *)); /** @@ -506,9 +506,9 @@ extern int ttm_bo_init(struct ttm_bo_device *bdev, * user buffer object. * @interruptible: If needing to sleep while waiting for GPU resources, * sleep interruptible. - * @persistant_swap_storage: Usually the swap storage is deleted for buffers + * @persistent_swap_storage: Usually the swap storage is deleted for buffers * pinned in physical memory. If this behaviour is not desired, this member - * holds a pointer to a persistant shmem object. Typically, this would + * holds a pointer to a persistent shmem object. Typically, this would * point to the shmem object backing a GEM object if TTM is used to back a * GEM user interface. * @p_bo: On successful completion *p_bo points to the created object. @@ -528,7 +528,7 @@ extern int ttm_bo_create(struct ttm_bo_device *bdev, uint32_t page_alignment, unsigned long buffer_start, bool interruptible, - struct file *persistant_swap_storage, + struct file *persistent_swap_storage, struct ttm_buffer_object **p_bo); /** diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index 1da8af6ac88..09af2d746d1 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -50,13 +50,15 @@ struct ttm_backend_func { * @pages: Array of pointers to ttm pages. * @dummy_read_page: Page to be used instead of NULL pages in the * array @pages. + * @dma_addrs: Array of DMA (bus) address of the ttm pages. * * Populate the backend with ttm pages. Depending on the backend, * it may or may not copy the @pages array. */ int (*populate) (struct ttm_backend *backend, unsigned long num_pages, struct page **pages, - struct page *dummy_read_page); + struct page *dummy_read_page, + dma_addr_t *dma_addrs); /** * struct ttm_backend_func member clear * @@ -120,7 +122,7 @@ struct ttm_backend { #define TTM_PAGE_FLAG_USER_DIRTY (1 << 2) #define TTM_PAGE_FLAG_WRITE (1 << 3) #define TTM_PAGE_FLAG_SWAPPED (1 << 4) -#define TTM_PAGE_FLAG_PERSISTANT_SWAP (1 << 5) +#define TTM_PAGE_FLAG_PERSISTENT_SWAP (1 << 5) #define TTM_PAGE_FLAG_ZERO_ALLOC (1 << 6) #define TTM_PAGE_FLAG_DMA32 (1 << 7) @@ -149,6 +151,7 @@ enum ttm_caching_state { * @swap_storage: Pointer to shmem struct file for swap storage. * @caching_state: The current caching state of the pages. * @state: The current binding state of the pages. + * @dma_address: The DMA (bus) addresses of the pages (if TTM_PAGE_FLAG_DMA32) * * This is a structure holding the pages, caching- and aperture binding * status for a buffer object that isn't backed by fixed (VRAM / AGP) @@ -173,6 +176,7 @@ struct ttm_tt { tt_unbound, tt_unpopulated, } state; + dma_addr_t *dma_address; }; #define TTM_MEMTYPE_FLAG_FIXED (1 << 0) /* Fixed (on-card) PCI memory */ @@ -219,9 +223,9 @@ struct ttm_mem_type_manager_func { * @mem::mm_node should be set to a non-null value, and * @mem::start should be set to a value identifying the beginning * of the range allocated, and the function should return zero. - * If the memory region accomodate the buffer object, @mem::mm_node + * If the memory region accommodate the buffer object, @mem::mm_node * should be set to NULL, and the function should return 0. - * If a system error occured, preventing the request to be fulfilled, + * If a system error occurred, preventing the request to be fulfilled, * the function should return a negative error code. * * Note that @mem::mm_node will only be dereferenced by @@ -710,7 +714,7 @@ extern void ttm_tt_cache_flush(struct page *pages[], unsigned long num_pages); */ extern int ttm_tt_set_placement_caching(struct ttm_tt *ttm, uint32_t placement); extern int ttm_tt_swapout(struct ttm_tt *ttm, - struct file *persistant_swap_storage); + struct file *persistent_swap_storage); /* * ttm_bo.c @@ -837,7 +841,7 @@ extern void ttm_mem_io_unlock(struct ttm_mem_type_manager *man); * different order, either by will or as a result of a buffer being evicted * to make room for a buffer already reserved. (Buffers are reserved before * they are evicted). The following algorithm prevents such deadlocks from - * occuring: + * occurring: * 1) Buffers are reserved with the lru spinlock held. Upon successful * reservation they are removed from the lru list. This stops a reserved buffer * from being evicted. However the lru spinlock is released between the time diff --git a/include/drm/ttm/ttm_page_alloc.h b/include/drm/ttm/ttm_page_alloc.h index 116821448c3..8062890f725 100644 --- a/include/drm/ttm/ttm_page_alloc.h +++ b/include/drm/ttm/ttm_page_alloc.h @@ -36,11 +36,13 @@ * @flags: ttm flags for page allocation. * @cstate: ttm caching state for the page. * @count: number of pages to allocate. + * @dma_address: The DMA (bus) address of pages (if TTM_PAGE_FLAG_DMA32 set). */ int ttm_get_pages(struct list_head *pages, int flags, enum ttm_caching_state cstate, - unsigned count); + unsigned count, + dma_addr_t *dma_address); /** * Put linked list of pages to pool. * @@ -49,11 +51,13 @@ int ttm_get_pages(struct list_head *pages, * count. * @flags: ttm flags for page allocation. * @cstate: ttm caching state. + * @dma_address: The DMA (bus) address of pages (if TTM_PAGE_FLAG_DMA32 set). */ void ttm_put_pages(struct list_head *pages, unsigned page_count, int flags, - enum ttm_caching_state cstate); + enum ttm_caching_state cstate, + dma_addr_t *dma_address); /** * Initialize pool allocator. */ |