pan_resource.h revision 9f464c52 
1/*
2 * © Copyright2018-2019 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
26#ifndef PAN_RESOURCE_H
27#define PAN_RESOURCE_H
28
29#include <panfrost-job.h>
30#include "pan_screen.h"
31#include "pan_allocate.h"
32#include "drm-uapi/drm.h"
33#include "util/u_range.h"
34
35/* Describes the memory layout of a BO */
36
37enum panfrost_memory_layout {
38        PAN_LINEAR,
39        PAN_TILED,
40        PAN_AFBC
41};
42
43struct panfrost_slice {
44        unsigned offset;
45        unsigned stride;
46};
47
48struct panfrost_bo {
49        struct pipe_reference reference;
50
51        /* Description of the mip levels */
52        struct panfrost_slice slices[MAX_MIP_LEVELS];
53
54        /* Mapping for the entire object (all levels) */
55        uint8_t *cpu;
56
57        /* GPU address for the object */
58        mali_ptr gpu;
59
60        /* Size of all entire trees */
61        size_t size;
62
63        /* Distance from tree to tree */
64        unsigned cubemap_stride;
65
66        /* Set if this bo was imported rather than allocated */
67        bool imported;
68
69        /* Internal layout (tiled?) */
70        enum panfrost_memory_layout layout;
71
72        /* If AFBC is enabled for this resource, we lug around an AFBC
73         * metadata buffer as well. The actual AFBC resource is also in
74         * afbc_slab (only defined for AFBC) at position afbc_main_offset
75         */
76
77        struct panfrost_memory afbc_slab;
78        int afbc_metadata_size;
79
80        /* If transaciton elimination is enabled, we have a dedicated
81         * buffer for that as well. */
82
83        bool has_checksum;
84        struct panfrost_memory checksum_slab;
85        int checksum_stride;
86
87        int gem_handle;
88};
89
90void
91panfrost_bo_reference(struct panfrost_bo *bo);
92
93void
94panfrost_bo_unreference(struct pipe_screen *screen, struct panfrost_bo *bo);
95
96struct panfrost_resource {
97        struct pipe_resource base;
98
99        struct panfrost_bo *bo;
100        struct renderonly_scanout *scanout;
101
102        struct panfrost_resource *separate_stencil;
103
104        struct util_range valid_buffer_range;
105};
106
107static inline struct panfrost_resource *
108pan_resource(struct pipe_resource *p)
109{
110   return (struct panfrost_resource *)p;
111}
112
113struct panfrost_gtransfer {
114        struct pipe_transfer base;
115        void *map;
116};
117
118static inline struct panfrost_gtransfer *
119pan_transfer(struct pipe_transfer *p)
120{
121   return (struct panfrost_gtransfer *)p;
122}
123
124void panfrost_resource_screen_init(struct panfrost_screen *screen);
125
126void panfrost_resource_context_init(struct pipe_context *pctx);
127
128#endif /* PAN_RESOURCE_H */
129