pool.h revision 7ec681f3 
1/*
2 * © Copyright 2017-2018 Alyssa Rosenzweig
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 *
23 */
24
25#ifndef __AGX_POOL_H__
26#define __AGX_POOL_H__
27
28#include <stddef.h>
29#include "asahi/lib/agx_pack.h"
30#include "agx_bo.h"
31
32#include "util/u_dynarray.h"
33
34/* Represents a pool of memory that can only grow, used to allocate objects
35 * with the same lifetime as the pool itself. In OpenGL, a pool is owned by the
36 * batch for transient structures. In Vulkan, it may be owned by e.g. the
37 * command pool */
38
39struct agx_pool {
40   /* Parent device for allocation */
41   struct agx_device *dev;
42
43   /* BOs allocated by this pool */
44   struct util_dynarray bos;
45
46   /* Current transient BO */
47   struct agx_bo *transient_bo;
48
49   /* Within the topmost transient BO, how much has been used? */
50   unsigned transient_offset;
51
52   /* BO flags to use in the pool */
53   unsigned create_flags;
54};
55
56void
57agx_pool_init(struct agx_pool *pool, struct agx_device *dev,
58      unsigned create_flags, bool prealloc);
59
60void
61agx_pool_cleanup(struct agx_pool *pool);
62
63static inline unsigned
64agx_pool_num_bos(struct agx_pool *pool)
65{
66   return util_dynarray_num_elements(&pool->bos, struct agx_bo *);
67}
68
69void
70agx_pool_get_bo_handles(struct agx_pool *pool, uint32_t *handles);
71
72/* Represents a fat pointer for GPU-mapped memory, returned from the transient
73 * allocator and not used for much else */
74
75struct agx_ptr
76agx_pool_alloc_aligned(struct agx_pool *pool, size_t sz, unsigned alignment);
77
78uint64_t
79agx_pool_upload(struct agx_pool *pool, const void *data, size_t sz);
80
81uint64_t
82agx_pool_upload_aligned(struct agx_pool *pool, const void *data, size_t sz, unsigned alignment);
83
84struct agx_desc_alloc_info {
85   unsigned size;
86   unsigned align;
87   unsigned nelems;
88};
89
90#define AGX_DESC_ARRAY(count, name) \
91        { \
92                .size = MALI_ ## name ## _LENGTH, \
93                .align = MALI_ ## name ## _ALIGN, \
94                .nelems = count, \
95        }
96
97#define AGX_DESC(name) AGX_DESC_ARRAY(1, name)
98
99#define AGX_DESC_AGGREGATE(...) \
100        (struct agx_desc_alloc_info[]) { \
101                __VA_ARGS__, \
102                { 0 }, \
103        }
104
105static inline struct agx_ptr
106agx_pool_alloc_descs(struct agx_pool *pool,
107                          const struct agx_desc_alloc_info *descs)
108{
109   unsigned size = 0;
110   unsigned align = descs[0].align;
111
112   for (unsigned i = 0; descs[i].size; i++) {
113      assert(!(size & (descs[i].align - 1)));
114      size += descs[i].size * descs[i].nelems;
115   }
116
117   return agx_pool_alloc_aligned(pool, size, align);
118}
119
120#define agx_pool_alloc_desc(pool, name) \
121        agx_pool_alloc_descs(pool, AGX_DESC_AGGREGATE(AGX_DESC(name)))
122
123#define agx_pool_alloc_desc_array(pool, count, name) \
124        agx_pool_alloc_descs(pool, AGX_DESC_AGGREGATE(AGX_DESC_ARRAY(count, name)))
125
126#define agx_pool_alloc_desc_aggregate(pool, ...) \
127        agx_pool_alloc_descs(pool, AGX_DESC_AGGREGATE(__VA_ARGS__))
128
129#endif
130