/*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* on the rights to use, copy, modify, merge, publish, distribute, sub
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* license, and/or sell copies of the Software, and to permit persons to whom
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* the Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Adam Rak <adam.rak@streamnovation.com>
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*/
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#ifndef COMPUTE_MEMORY_POOL
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#define COMPUTE_MEMORY_POOL
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#include <stdlib.h>
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#define ITEM_MAPPED_FOR_READING (1<<0)
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#define ITEM_MAPPED_FOR_WRITING (1<<1)
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#define ITEM_FOR_PROMOTING (1<<2)
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#define ITEM_FOR_DEMOTING (1<<3)
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#define POOL_FRAGMENTED (1<<0)
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struct compute_memory_pool;
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struct compute_memory_item
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{
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int64_t id; /**< ID of the memory chunk */
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uint32_t status; /**< Will track the status of the item */
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/** Start pointer in dwords relative in the pool bo. If an item
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* is unallocated, then this value must be -1 to indicate this. */
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int64_t start_in_dw;
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int64_t size_in_dw; /**< Size of the chunk in dwords */
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/** Intermediate buffer asociated with an item. It is used mainly for mapping
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* items against it. They are listed in the pool's unallocated list */
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struct r600_resource *real_buffer;
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struct compute_memory_pool* pool;
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struct list_head link;
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};
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struct compute_memory_pool
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{
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int64_t next_id; /**< For generating unique IDs for memory chunks */
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int64_t size_in_dw; /**< Size of the pool in dwords */
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struct r600_resource *bo; /**< The pool buffer object resource */
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struct r600_screen *screen;
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uint32_t *shadow; /**< host copy of the pool, used for growing the pool */
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uint32_t status; /**< Status of the pool */
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/** Allocated memory items in the pool, they must be ordered by "start_in_dw" */
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struct list_head *item_list;
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/** Unallocated memory items, this list contains all the items that aren't
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* yet in the pool */
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struct list_head *unallocated_list;
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};
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static inline int is_item_in_pool(struct compute_memory_item *item)
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{
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return item->start_in_dw != -1;
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}
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struct compute_memory_pool* compute_memory_pool_new(struct r600_screen *rscreen);
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void compute_memory_pool_delete(struct compute_memory_pool* pool);
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int64_t compute_memory_prealloc_chunk(struct compute_memory_pool* pool,
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int64_t size_in_dw);
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struct list_head *compute_memory_postalloc_chunk(struct compute_memory_pool* pool,
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int64_t start_in_dw);
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int compute_memory_grow_defrag_pool(struct compute_memory_pool* pool,
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struct pipe_context *pipe, int new_size_in_dw);
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void compute_memory_shadow(struct compute_memory_pool* pool,
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struct pipe_context *pipe, int device_to_host);
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int compute_memory_finalize_pending(struct compute_memory_pool* pool,
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struct pipe_context * pipe);
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void compute_memory_defrag(struct compute_memory_pool *pool,
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struct pipe_resource *src, struct pipe_resource *dst,
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struct pipe_context *pipe);
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int compute_memory_promote_item(struct compute_memory_pool *pool,
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struct compute_memory_item *item, struct pipe_context *pipe,
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int64_t allocated);
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void compute_memory_demote_item(struct compute_memory_pool *pool,
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struct compute_memory_item *item, struct pipe_context *pipe);
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void compute_memory_move_item(struct compute_memory_pool *pool,
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struct pipe_resource *src, struct pipe_resource *dst,
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struct compute_memory_item *item, uint64_t new_start_in_dw,
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struct pipe_context *pipe);
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void compute_memory_free(struct compute_memory_pool* pool, int64_t id);
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struct compute_memory_item* compute_memory_alloc(struct compute_memory_pool* pool,
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int64_t size_in_dw);
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void compute_memory_transfer(struct compute_memory_pool* pool,
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struct pipe_context * pipe, int device_to_host,
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struct compute_memory_item* chunk, void* data,
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int offset_in_chunk, int size);
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void compute_memory_transfer_direct(struct compute_memory_pool* pool,
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int chunk_to_data, struct compute_memory_item* chunk,
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struct r600_resource* data, int offset_in_chunk,
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int offset_in_data, int size);
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#endif
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