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 __PAN_POOL_H__
26 #define __PAN_POOL_H__
27
28 #include <stddef.h>
29 #include <genxml/gen_macros.h>
30 #include "pan_bo.h"
31
32 #include "util/u_dynarray.h"
33
34 /* Represents grow-only memory. */
35
36 struct pan_pool {
37 /* Parent device for allocation */
38 struct panfrost_device *dev;
39
40 /* Label for created BOs */
41 const char *label;
42
43 /* BO flags to use in the pool */
44 unsigned create_flags;
45
46 /* Minimum size for allocated BOs. */
47 size_t slab_size;
48 };
49
50 static inline void
pan_pool_init(struct pan_pool * pool,struct panfrost_device * dev,unsigned create_flags,size_t slab_size,const char * label)51 pan_pool_init(struct pan_pool *pool, struct panfrost_device *dev,
52 unsigned create_flags, size_t slab_size, const char *label)
53 {
54 pool->dev = dev;
55 pool->create_flags = create_flags;
56 pool->slab_size = slab_size;
57 pool->label = label;
58 }
59
60 /* Represents a fat pointer for GPU-mapped memory, returned from the transient
61 * allocator and not used for much else */
62
63 struct panfrost_ptr
64 pan_pool_alloc_aligned(struct pan_pool *pool, size_t sz, unsigned alignment);
65
66 #define PAN_POOL_ALLOCATOR(pool_subclass, alloc_func) \
67 struct panfrost_ptr \
68 pan_pool_alloc_aligned(struct pan_pool *p, size_t sz, unsigned alignment) \
69 { \
70 pool_subclass *pool = container_of(p, pool_subclass, base); \
71 return alloc_func(pool, sz, alignment); \
72 }
73
74 static inline mali_ptr
pan_pool_upload_aligned(struct pan_pool * pool,const void * data,size_t sz,unsigned alignment)75 pan_pool_upload_aligned(struct pan_pool *pool, const void *data, size_t sz, unsigned alignment)
76 {
77 struct panfrost_ptr transfer = pan_pool_alloc_aligned(pool, sz, alignment);
78 memcpy(transfer.cpu, data, sz);
79 return transfer.gpu;
80 }
81
82 static inline mali_ptr
pan_pool_upload(struct pan_pool * pool,const void * data,size_t sz)83 pan_pool_upload(struct pan_pool *pool, const void *data, size_t sz)
84 {
85 return pan_pool_upload_aligned(pool, data, sz, sz);
86 }
87
88 struct pan_desc_alloc_info {
89 unsigned size;
90 unsigned align;
91 unsigned nelems;
92 };
93
94 #define PAN_DESC_ARRAY(count, name) \
95 { \
96 .size = pan_size(name), \
97 .align = pan_alignment(name), \
98 .nelems = count, \
99 }
100
101 #define PAN_DESC(name) PAN_DESC_ARRAY(1, name)
102
103 #define PAN_DESC_AGGREGATE(...) \
104 (struct pan_desc_alloc_info[]) { \
105 __VA_ARGS__, \
106 { 0 }, \
107 }
108
109 static inline struct panfrost_ptr
pan_pool_alloc_descs(struct pan_pool * pool,const struct pan_desc_alloc_info * descs)110 pan_pool_alloc_descs(struct pan_pool *pool,
111 const struct pan_desc_alloc_info *descs)
112 {
113 unsigned size = 0;
114 unsigned align = descs[0].align;
115
116 for (unsigned i = 0; descs[i].size; i++) {
117 assert(!(size & (descs[i].align - 1)));
118 size += descs[i].size * descs[i].nelems;
119 }
120
121 return pan_pool_alloc_aligned(pool, size, align);
122 }
123
124 #define pan_pool_alloc_desc(pool, name) \
125 pan_pool_alloc_descs(pool, PAN_DESC_AGGREGATE(PAN_DESC(name)))
126
127 #define pan_pool_alloc_desc_array(pool, count, name) \
128 pan_pool_alloc_descs(pool, PAN_DESC_AGGREGATE(PAN_DESC_ARRAY(count, name)))
129
130 #define pan_pool_alloc_desc_aggregate(pool, ...) \
131 pan_pool_alloc_descs(pool, PAN_DESC_AGGREGATE(__VA_ARGS__))
132
133 #endif
134