diff options
Diffstat (limited to 'src/gallium')
| -rw-r--r-- | src/gallium/drivers/r600/compute_memory_pool.c | 59 | ||||
| -rw-r--r-- | src/gallium/drivers/r600/compute_memory_pool.h | 58 |
2 files changed, 86 insertions, 31 deletions
diff --git a/src/gallium/drivers/r600/compute_memory_pool.c b/src/gallium/drivers/r600/compute_memory_pool.c index d53587ffa96..928618c3330 100644 --- a/src/gallium/drivers/r600/compute_memory_pool.c +++ b/src/gallium/drivers/r600/compute_memory_pool.c @@ -44,7 +44,7 @@ #define ITEM_ALIGNMENT 1024 /** - * Creates a new pool + * Creates a new pool. */ struct compute_memory_pool* compute_memory_pool_new( struct r600_screen * rscreen) @@ -66,6 +66,12 @@ struct compute_memory_pool* compute_memory_pool_new( return pool; } +/** + * Initializes the pool with a size of \a initial_size_in_dw. + * \param pool The pool to be initialized. + * \param initial_size_in_dw The initial size. + * \see compute_memory_grow_defrag_pool + */ static void compute_memory_pool_init(struct compute_memory_pool * pool, unsigned initial_size_in_dw) { @@ -79,7 +85,7 @@ static void compute_memory_pool_init(struct compute_memory_pool * pool, } /** - * Frees all stuff in the pool and the pool struct itself too + * Frees all stuff in the pool and the pool struct itself too. */ void compute_memory_pool_delete(struct compute_memory_pool* pool) { @@ -94,7 +100,9 @@ void compute_memory_pool_delete(struct compute_memory_pool* pool) /** * Searches for an empty space in the pool, return with the pointer to the - * allocatable space in the pool, returns -1 on failure. + * allocatable space in the pool. + * \param size_in_dw The size of the space we are looking for. + * \return -1 on failure */ int64_t compute_memory_prealloc_chunk( struct compute_memory_pool* pool, @@ -126,6 +134,8 @@ int64_t compute_memory_prealloc_chunk( /** * Search for the chunk where we can link our new chunk after it. + * \param start_in_dw The position of the item we want to add to the pool. + * \return The item that is just before the passed position */ struct list_head *compute_memory_postalloc_chunk( struct compute_memory_pool* pool, @@ -166,8 +176,9 @@ struct list_head *compute_memory_postalloc_chunk( } /** - * Reallocates pool, conserves data. - * @returns -1 if it fails, 0 otherwise + * Reallocates and defragments the pool, conserves data. + * \returns -1 if it fails, 0 otherwise + * \see compute_memory_finalize_pending */ int compute_memory_grow_defrag_pool(struct compute_memory_pool *pool, struct pipe_context *pipe, int new_size_in_dw) @@ -234,6 +245,8 @@ int compute_memory_grow_defrag_pool(struct compute_memory_pool *pool, /** * Copy pool from device to host, or host to device. + * \param device_to_host 1 for device->host, 0 for host->device + * \see compute_memory_grow_defrag_pool */ void compute_memory_shadow(struct compute_memory_pool* pool, struct pipe_context * pipe, int device_to_host) @@ -251,8 +264,10 @@ void compute_memory_shadow(struct compute_memory_pool* pool, } /** - * Allocates pending allocations in the pool - * @returns -1 if it fails, 0 otherwise + * Moves all the items marked for promotion from the \a unallocated_list + * to the \a item_list. + * \return -1 if it fails, 0 otherwise + * \see evergreen_set_global_binding */ int compute_memory_finalize_pending(struct compute_memory_pool* pool, struct pipe_context * pipe) @@ -323,6 +338,9 @@ int compute_memory_finalize_pending(struct compute_memory_pool* pool, /** * Defragments the pool, so that there's no gap between items. * \param pool The pool to be defragmented + * \param src The origin resource + * \param dst The destination resource + * \see compute_memory_grow_defrag_pool and compute_memory_finalize_pending */ void compute_memory_defrag(struct compute_memory_pool *pool, struct pipe_resource *src, struct pipe_resource *dst, @@ -348,6 +366,12 @@ void compute_memory_defrag(struct compute_memory_pool *pool, pool->status &= ~POOL_FRAGMENTED; } +/** + * Moves an item from the \a unallocated_list to the \a item_list. + * \param item The item that will be promoted. + * \return -1 if it fails, 0 otherwise + * \see compute_memory_finalize_pending + */ int compute_memory_promote_item(struct compute_memory_pool *pool, struct compute_memory_item *item, struct pipe_context *pipe, int64_t start_in_dw) @@ -390,6 +414,11 @@ int compute_memory_promote_item(struct compute_memory_pool *pool, return 0; } +/** + * Moves an item from the \a item_list to the \a unallocated_list. + * \param item The item that will be demoted + * \see r600_compute_global_transfer_map + */ void compute_memory_demote_item(struct compute_memory_pool *pool, struct compute_memory_item *item, struct pipe_context *pipe) { @@ -434,7 +463,7 @@ void compute_memory_demote_item(struct compute_memory_pool *pool, * resource \a dst at \a new_start_in_dw * * This function assumes two things: - * 1) The item is \b only moved forward + * 1) The item is \b only moved forward, unless src is different from dst * 2) The item \b won't change it's position inside the \a item_list * * \param item The item that will be moved @@ -516,6 +545,10 @@ void compute_memory_move_item(struct compute_memory_pool *pool, item->start_in_dw = new_start_in_dw; } +/** + * Frees the memory asociated to the item with id \a id from the pool. + * \param id The id of the item to be freed. + */ void compute_memory_free(struct compute_memory_pool* pool, int64_t id) { struct compute_memory_item *item, *next; @@ -570,7 +603,11 @@ void compute_memory_free(struct compute_memory_pool* pool, int64_t id) } /** - * Creates pending allocations + * Creates pending allocations for new items, these items are + * placed in the unallocated_list. + * \param size_in_dw The size, in double words, of the new item. + * \return The new item + * \see r600_compute_global_buffer_create */ struct compute_memory_item* compute_memory_alloc( struct compute_memory_pool* pool, @@ -601,7 +638,9 @@ struct compute_memory_item* compute_memory_alloc( } /** - * Transfer data host<->device, offset and size is in bytes + * Transfer data host<->device, offset and size is in bytes. + * \param device_to_host 1 for device->host, 0 for host->device. + * \see compute_memory_shadow */ void compute_memory_transfer( struct compute_memory_pool* pool, diff --git a/src/gallium/drivers/r600/compute_memory_pool.h b/src/gallium/drivers/r600/compute_memory_pool.h index c7eb2370fc2..161ddd53eae 100644 --- a/src/gallium/drivers/r600/compute_memory_pool.h +++ b/src/gallium/drivers/r600/compute_memory_pool.h @@ -38,13 +38,17 @@ struct compute_memory_pool; struct compute_memory_item { - int64_t id; ///ID of the memory chunk + int64_t id; /**< ID of the memory chunk */ - uint32_t status; ///Will track the status of the item + uint32_t status; /**< Will track the status of the item */ - int64_t start_in_dw; ///Start pointer in dwords relative in the pool bo - int64_t size_in_dw; ///Size of the chunk in dwords + /** Start pointer in dwords relative in the pool bo. If an item + * is unallocated, then this value must be -1 to indicate this. */ + int64_t start_in_dw; + int64_t size_in_dw; /**< Size of the chunk in dwords */ + /** Intermediate buffer asociated with an item. It is used mainly for mapping + * items against it. They are listed in the pool's unallocated list */ struct r600_resource *real_buffer; struct compute_memory_pool* pool; @@ -54,18 +58,22 @@ struct compute_memory_item struct compute_memory_pool { - int64_t next_id; ///For generating unique IDs for memory chunks - int64_t size_in_dw; ///Size of the pool in dwords + int64_t next_id; /**< For generating unique IDs for memory chunks */ + int64_t size_in_dw; /**< Size of the pool in dwords */ - struct r600_resource *bo; ///The pool buffer object resource + struct r600_resource *bo; /**< The pool buffer object resource */ struct r600_screen *screen; - uint32_t *shadow; ///host copy of the pool, used for defragmentation + uint32_t *shadow; /**< host copy of the pool, used for growing the pool */ uint32_t status; /**< Status of the pool */ - struct list_head *item_list; ///Allocated memory chunks in the buffer,they must be ordered by "start_in_dw" - struct list_head *unallocated_list; ///Unallocated memory chunks + /** Allocated memory items in the pool, they must be ordered by "start_in_dw" */ + struct list_head *item_list; + + /** Unallocated memory items, this list contains all the items that aren't + * yet in the pool */ + struct list_head *unallocated_list; }; @@ -74,18 +82,21 @@ static inline int is_item_in_pool(struct compute_memory_item *item) return item->start_in_dw != -1; } -struct compute_memory_pool* compute_memory_pool_new(struct r600_screen *rscreen); ///Creates a new pool -void compute_memory_pool_delete(struct compute_memory_pool* pool); ///Frees all stuff in the pool and the pool struct itself too +struct compute_memory_pool* compute_memory_pool_new(struct r600_screen *rscreen); + +void compute_memory_pool_delete(struct compute_memory_pool* pool); -int64_t compute_memory_prealloc_chunk(struct compute_memory_pool* pool, int64_t size_in_dw); ///searches for an empty space in the pool, return with the pointer to the allocatable space in the pool, returns -1 on failure +int64_t compute_memory_prealloc_chunk(struct compute_memory_pool* pool, + int64_t size_in_dw); -struct list_head *compute_memory_postalloc_chunk(struct compute_memory_pool* pool, int64_t start_in_dw); ///search for the chunk where we can link our new chunk after it +struct list_head *compute_memory_postalloc_chunk(struct compute_memory_pool* pool, + int64_t start_in_dw); -int compute_memory_grow_defrag_pool(struct compute_memory_pool* pool, struct pipe_context * pipe, - int new_size_in_dw); +int compute_memory_grow_defrag_pool(struct compute_memory_pool* pool, + struct pipe_context *pipe, int new_size_in_dw); void compute_memory_shadow(struct compute_memory_pool* pool, - struct pipe_context * pipe, int device_to_host); + struct pipe_context *pipe, int device_to_host); int compute_memory_finalize_pending(struct compute_memory_pool* pool, struct pipe_context * pipe); @@ -95,8 +106,8 @@ void compute_memory_defrag(struct compute_memory_pool *pool, struct pipe_context *pipe); int compute_memory_promote_item(struct compute_memory_pool *pool, - struct compute_memory_item *item, struct pipe_context *pipe, - int64_t start_in_dw); + struct compute_memory_item *item, struct pipe_context *pipe, + int64_t allocated); void compute_memory_demote_item(struct compute_memory_pool *pool, struct compute_memory_item *item, struct pipe_context *pipe); @@ -107,13 +118,18 @@ void compute_memory_move_item(struct compute_memory_pool *pool, struct pipe_context *pipe); void compute_memory_free(struct compute_memory_pool* pool, int64_t id); -struct compute_memory_item* compute_memory_alloc(struct compute_memory_pool* pool, int64_t size_in_dw); ///Creates pending allocations + +struct compute_memory_item* compute_memory_alloc(struct compute_memory_pool* pool, + int64_t size_in_dw); void compute_memory_transfer(struct compute_memory_pool* pool, struct pipe_context * pipe, int device_to_host, struct compute_memory_item* chunk, void* data, int offset_in_chunk, int size); -void compute_memory_transfer_direct(struct compute_memory_pool* pool, int chunk_to_data, struct compute_memory_item* chunk, struct r600_resource* data, int offset_in_chunk, int offset_in_data, int size); ///Transfer data between chunk<->data, it is for VRAM<->GART transfers +void compute_memory_transfer_direct(struct compute_memory_pool* pool, + int chunk_to_data, struct compute_memory_item* chunk, + struct r600_resource* data, int offset_in_chunk, + int offset_in_data, int size); #endif |