faadeea1dc1e6e47dd5c46c9d238b0164b914bf2
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:
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
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.
22 * Adam Rak <adam.rak@streamnovation.com>
25 #ifndef COMPUTE_MEMORY_POOL
26 #define COMPUTE_MEMORY_POOL
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)
35 struct compute_memory_pool
;
37 struct compute_memory_item
39 int64_t id
; ///ID of the memory chunk
41 uint32_t status
; ///Will track the status of the item
43 int64_t start_in_dw
; ///Start pointer in dwords relative in the pool bo
44 int64_t size_in_dw
; ///Size of the chunk in dwords
46 struct r600_resource
*real_buffer
;
48 struct compute_memory_pool
* pool
;
50 struct compute_memory_item
* prev
;
51 struct compute_memory_item
* next
;
54 struct compute_memory_pool
56 int64_t next_id
; ///For generating unique IDs for memory chunks
57 int64_t size_in_dw
; ///Size of the pool in dwords
59 struct r600_resource
*bo
; ///The pool buffer object resource
60 struct compute_memory_item
* item_list
; ///Allocated memory chunks in the buffer,they must be ordered by "start_in_dw"
61 struct compute_memory_item
* unallocated_list
; ///Unallocated memory chunks
62 struct r600_screen
*screen
;
64 uint32_t *shadow
; ///host copy of the pool, used for defragmentation
68 static inline int is_item_in_pool(struct compute_memory_item
*item
)
70 return item
->start_in_dw
!= -1;
73 struct compute_memory_pool
* compute_memory_pool_new(struct r600_screen
*rscreen
); ///Creates a new pool
74 void compute_memory_pool_delete(struct compute_memory_pool
* pool
); ///Frees all stuff in the pool and the pool struct itself too
76 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
78 struct compute_memory_item
* 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
80 int compute_memory_grow_pool(struct compute_memory_pool
* pool
, struct pipe_context
* pipe
,
83 void compute_memory_shadow(struct compute_memory_pool
* pool
,
84 struct pipe_context
* pipe
, int device_to_host
);
86 int compute_memory_finalize_pending(struct compute_memory_pool
* pool
,
87 struct pipe_context
* pipe
);
89 int compute_memory_promote_item(struct compute_memory_pool
*pool
,
90 struct compute_memory_item
*item
, struct pipe_context
*pipe
,
93 void compute_memory_free(struct compute_memory_pool
* pool
, int64_t id
);
94 struct compute_memory_item
* compute_memory_alloc(struct compute_memory_pool
* pool
, int64_t size_in_dw
); ///Creates pending allocations
96 void compute_memory_transfer(struct compute_memory_pool
* pool
,
97 struct pipe_context
* pipe
, int device_to_host
,
98 struct compute_memory_item
* chunk
, void* data
,
99 int offset_in_chunk
, int size
);
101 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