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 "pan_screen.h"
30 #include "pan_minmax_cache.h"
31 #include "pan_texture.h"
32 #include "drm-uapi/drm.h"
33 #include "util/u_range.h"
34 
35 #define LAYOUT_CONVERT_THRESHOLD 8
36 #define PAN_MAX_BATCHES 32
37 
38 struct panfrost_resource {
39         struct pipe_resource base;
40         struct {
41                 struct pipe_scissor_state extent;
42                 struct {
43                         bool enable;
44                         unsigned stride;
45                         unsigned size;
46                         BITSET_WORD *data;
47                 } tile_map;
48         } damage;
49 
50         struct {
51                 /** Number of batches accessing this resource. Used to check if
52                  * a resource is in use. */
53                 _Atomic unsigned nr_users;
54 
55                 /** Number of batches writing this resource. Note that only one
56                  * batch per context may write a resource, so this is the
57                  * number of contexts that have an active writer. */
58                 _Atomic unsigned nr_writers;
59         } track;
60 
61         struct renderonly_scanout *scanout;
62 
63         struct panfrost_resource *separate_stencil;
64 
65         struct util_range valid_buffer_range;
66 
67         /* Description of the resource layout */
68         struct pan_image image;
69 
70         struct {
71                 /* Is the checksum for this image valid? Implicitly refers to
72                  * the first slice; we only checksum non-mipmapped 2D images */
73                 bool crc;
74 
75                 /* Has anything been written to this slice? */
76                 BITSET_DECLARE(data, MAX_MIP_LEVELS);
77         } valid;
78 
79         /* Whether the modifier can be changed */
80         bool modifier_constant;
81 
82         /* Used to decide when to convert to another modifier */
83         uint16_t modifier_updates;
84 
85         /* Cached min/max values for index buffers */
86         struct panfrost_minmax_cache *index_cache;
87 };
88 
89 static inline struct panfrost_resource *
pan_resource(struct pipe_resource * p)90 pan_resource(struct pipe_resource *p)
91 {
92         return (struct panfrost_resource *)p;
93 }
94 
95 struct panfrost_transfer {
96         struct pipe_transfer base;
97         void *map;
98         struct {
99                 struct pipe_resource *rsrc;
100                 struct pipe_box box;
101         } staging;
102 };
103 
104 static inline struct panfrost_transfer *
pan_transfer(struct pipe_transfer * p)105 pan_transfer(struct pipe_transfer *p)
106 {
107         return (struct panfrost_transfer *)p;
108 }
109 
110 void panfrost_resource_screen_init(struct pipe_screen *screen);
111 
112 void panfrost_resource_screen_destroy(struct pipe_screen *screen);
113 
114 void panfrost_resource_context_init(struct pipe_context *pctx);
115 
116 /* Blitting */
117 
118 void
119 panfrost_blit(struct pipe_context *pipe,
120               const struct pipe_blit_info *info);
121 
122 void
123 panfrost_resource_set_damage_region(struct pipe_screen *screen,
124                                     struct pipe_resource *res,
125                                     unsigned int nrects,
126                                     const struct pipe_box *rects);
127 
128 static inline enum mali_texture_dimension
panfrost_translate_texture_dimension(enum pipe_texture_target t)129 panfrost_translate_texture_dimension(enum pipe_texture_target t) {
130         switch (t)
131         {
132         case PIPE_BUFFER:
133         case PIPE_TEXTURE_1D:
134         case PIPE_TEXTURE_1D_ARRAY:
135                 return MALI_TEXTURE_DIMENSION_1D;
136 
137         case PIPE_TEXTURE_2D:
138         case PIPE_TEXTURE_2D_ARRAY:
139         case PIPE_TEXTURE_RECT:
140                 return MALI_TEXTURE_DIMENSION_2D;
141 
142         case PIPE_TEXTURE_3D:
143                 return MALI_TEXTURE_DIMENSION_3D;
144 
145         case PIPE_TEXTURE_CUBE:
146         case PIPE_TEXTURE_CUBE_ARRAY:
147                 return MALI_TEXTURE_DIMENSION_CUBE;
148 
149         default:
150                 unreachable("Unknown target");
151         }
152 }
153 
154 void
155 pan_resource_modifier_convert(struct panfrost_context *ctx,
156                               struct panfrost_resource *rsrc,
157                               uint64_t modifier, const char *reason);
158 
159 void
160 pan_legalize_afbc_format(struct panfrost_context *ctx,
161                          struct panfrost_resource *rsrc,
162                          enum pipe_format format);
163 
164 #endif /* PAN_RESOURCE_H */
165