1 /* 2 * Permission is hereby granted, free of charge, to any person obtaining a 3 * copy of this software and associated documentation files (the "Software"), 4 * to deal in the Software without restriction, including without limitation 5 * on the rights to use, copy, modify, merge, publish, distribute, sub 6 * license, and/or sell copies of the Software, and to permit persons to whom 7 * the Software is furnished to do so, subject to the following conditions: 8 * 9 * The above copyright notice and this permission notice (including the next 10 * paragraph) shall be included in all copies or substantial portions of the 11 * Software. 12 * 13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 15 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 16 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, 17 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 18 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 19 * USE OR OTHER DEALINGS IN THE SOFTWARE. 20 * 21 * Authors: 22 * Adam Rak <adam.rak (at) streamnovation.com> 23 */ 24 25 #ifndef COMPUTE_MEMORY_POOL 26 #define COMPUTE_MEMORY_POOL 27 28 #include <stdlib.h> 29 30 #define ITEM_MAPPED_FOR_READING (1<<0) 31 #define ITEM_MAPPED_FOR_WRITING (1<<1) 32 #define ITEM_FOR_PROMOTING (1<<2) 33 #define ITEM_FOR_DEMOTING (1<<3) 34 35 #define POOL_FRAGMENTED (1<<0) 36 37 struct compute_memory_pool; 38 39 struct compute_memory_item 40 { 41 int64_t id; /**< ID of the memory chunk */ 42 43 uint32_t status; /**< Will track the status of the item */ 44 45 /** Start pointer in dwords relative in the pool bo. If an item 46 * is unallocated, then this value must be -1 to indicate this. */ 47 int64_t start_in_dw; 48 int64_t size_in_dw; /**< Size of the chunk in dwords */ 49 50 /** Intermediate buffer asociated with an item. It is used mainly for mapping 51 * items against it. They are listed in the pool's unallocated list */ 52 struct r600_resource *real_buffer; 53 54 struct compute_memory_pool* pool; 55 56 struct list_head link; 57 }; 58 59 struct compute_memory_pool 60 { 61 int64_t next_id; /**< For generating unique IDs for memory chunks */ 62 int64_t size_in_dw; /**< Size of the pool in dwords */ 63 64 struct r600_resource *bo; /**< The pool buffer object resource */ 65 struct r600_screen *screen; 66 67 uint32_t *shadow; /**< host copy of the pool, used for growing the pool */ 68 69 uint32_t status; /**< Status of the pool */ 70 71 /** Allocated memory items in the pool, they must be ordered by "start_in_dw" */ 72 struct list_head *item_list; 73 74 /** Unallocated memory items, this list contains all the items that aren't 75 * yet in the pool */ 76 struct list_head *unallocated_list; 77 }; 78 79 80 static inline int is_item_in_pool(struct compute_memory_item *item) 81 { 82 return item->start_in_dw != -1; 83 } 84 85 struct compute_memory_pool* compute_memory_pool_new(struct r600_screen *rscreen); 86 87 void compute_memory_pool_delete(struct compute_memory_pool* pool); 88 89 int64_t compute_memory_prealloc_chunk(struct compute_memory_pool* pool, 90 int64_t size_in_dw); 91 92 struct list_head *compute_memory_postalloc_chunk(struct compute_memory_pool* pool, 93 int64_t start_in_dw); 94 95 int compute_memory_grow_defrag_pool(struct compute_memory_pool* pool, 96 struct pipe_context *pipe, int new_size_in_dw); 97 98 void compute_memory_shadow(struct compute_memory_pool* pool, 99 struct pipe_context *pipe, int device_to_host); 100 101 int compute_memory_finalize_pending(struct compute_memory_pool* pool, 102 struct pipe_context * pipe); 103 104 void compute_memory_defrag(struct compute_memory_pool *pool, 105 struct pipe_resource *src, struct pipe_resource *dst, 106 struct pipe_context *pipe); 107 108 int compute_memory_promote_item(struct compute_memory_pool *pool, 109 struct compute_memory_item *item, struct pipe_context *pipe, 110 int64_t allocated); 111 112 void compute_memory_demote_item(struct compute_memory_pool *pool, 113 struct compute_memory_item *item, struct pipe_context *pipe); 114 115 void compute_memory_move_item(struct compute_memory_pool *pool, 116 struct pipe_resource *src, struct pipe_resource *dst, 117 struct compute_memory_item *item, uint64_t new_start_in_dw, 118 struct pipe_context *pipe); 119 120 void compute_memory_free(struct compute_memory_pool* pool, int64_t id); 121 122 struct compute_memory_item* compute_memory_alloc(struct compute_memory_pool* pool, 123 int64_t size_in_dw); 124 125 void compute_memory_transfer(struct compute_memory_pool* pool, 126 struct pipe_context * pipe, int device_to_host, 127 struct compute_memory_item* chunk, void* data, 128 int offset_in_chunk, int size); 129 130 void compute_memory_transfer_direct(struct compute_memory_pool* pool, 131 int chunk_to_data, struct compute_memory_item* chunk, 132 struct r600_resource* data, int offset_in_chunk, 133 int offset_in_data, int size); 134 135 #endif 136
