1 /*
2 * Copyright (c) 2012-2015 Etnaviv Project
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, sub license,
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
12 * next paragraph) shall be included in all copies or substantial portions
13 * of the 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 NON-INFRINGEMENT. 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
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 * Wladimir J. van der Laan <laanwj@gmail.com>
25 */
26
27 #ifndef H_ETNAVIV_RESOURCE
28 #define H_ETNAVIV_RESOURCE
29
30 #include "etnaviv_internal.h"
31 #include "etnaviv_tiling.h"
32 #include "pipe/p_state.h"
33 #include "util/format/u_format.h"
34 #include "util/list.h"
35 #include "util/set.h"
36 #include "util/u_helpers.h"
37 #include "util/u_range.h"
38
39 struct etna_context;
40 struct pipe_screen;
41 struct util_dynarray;
42
43 struct etna_resource_level {
44 unsigned width, padded_width; /* in pixels */
45 unsigned height, padded_height; /* in samples */
46 unsigned depth;
47 unsigned offset; /* offset into memory area */
48 uint32_t stride; /* row stride */
49 uint32_t layer_stride; /* layer stride */
50 unsigned size; /* total size of memory area */
51
52 uint32_t ts_offset;
53 uint32_t ts_layer_stride;
54 uint32_t ts_size;
55 uint64_t clear_value; /* clear value of resource level (mainly for TS) */
56 bool ts_valid;
57 uint8_t ts_mode;
58 int8_t ts_compress_fmt; /* COLOR_COMPRESSION_FORMAT_* (-1 = disable) */
59
60 /* keep track if we have done some per block patching */
61 bool patched;
62 struct util_dynarray *patch_offsets;
63 };
64
65 /* status of queued up but not flushed reads and write operations.
66 * In _transfer_map() we need to know if queued up rendering needs
67 * to be flushed to preserve the order of cpu and gpu access. */
68 enum etna_resource_status {
69 ETNA_PENDING_WRITE = 0x01,
70 ETNA_PENDING_READ = 0x02,
71 };
72
73 struct etna_resource {
74 struct pipe_resource base;
75 struct renderonly_scanout *scanout;
76 uint32_t seqno;
77 uint32_t flush_seqno;
78
79 /* only lod 0 used for non-texture buffers */
80 /* Layout for surface (tiled, multitiled, split tiled, ...) */
81 enum etna_surface_layout layout;
82 /* Horizontal alignment for texture unit (TEXTURE_HALIGN_*) */
83 unsigned halign;
84 struct etna_bo *bo; /* Surface video memory */
85 struct etna_bo *ts_bo; /* Tile status video memory */
86
87 struct etna_resource_level levels[ETNA_NUM_LOD];
88
89 /* buffer range that has been initialized */
90 struct util_range valid_buffer_range;
91
92 /* for when TE doesn't support the base layout */
93 struct pipe_resource *texture;
94 /* for when PE doesn't support the base layout */
95 struct pipe_resource *render;
96 /* frontend flushes resource via an explicit call to flush_resource */
97 bool explicit_flush;
98
99 enum etna_resource_status status;
100
101 mtx_t lock; /* Lock to protect pending_ctx */
102 struct set *pending_ctx;
103 };
104
105 /* returns TRUE if a is newer than b */
106 static inline bool
etna_resource_newer(struct etna_resource * a,struct etna_resource * b)107 etna_resource_newer(struct etna_resource *a, struct etna_resource *b)
108 {
109 return (int)(a->seqno - b->seqno) > 0;
110 }
111
112 /* returns TRUE if a is older than b */
113 static inline bool
etna_resource_older(struct etna_resource * a,struct etna_resource * b)114 etna_resource_older(struct etna_resource *a, struct etna_resource *b)
115 {
116 return (int)(a->seqno - b->seqno) < 0;
117 }
118
119 /* returns TRUE if a resource has a TS, and it is valid for at least one level */
120 bool
121 etna_resource_has_valid_ts(struct etna_resource *res);
122
123 /* returns TRUE if the resource needs a resolve to itself */
124 static inline bool
etna_resource_needs_flush(struct etna_resource * res)125 etna_resource_needs_flush(struct etna_resource *res)
126 {
127 return etna_resource_has_valid_ts(res) && ((int)(res->seqno - res->flush_seqno) > 0);
128 }
129
130 /* is the resource only used on the sampler? */
131 static inline bool
etna_resource_sampler_only(const struct pipe_resource * pres)132 etna_resource_sampler_only(const struct pipe_resource *pres)
133 {
134 return (pres->bind & (PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET |
135 PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_BLENDABLE)) ==
136 PIPE_BIND_SAMPLER_VIEW;
137 }
138
139 static inline bool
etna_resource_hw_tileable(bool use_blt,const struct pipe_resource * pres)140 etna_resource_hw_tileable(bool use_blt, const struct pipe_resource *pres)
141 {
142 if (use_blt)
143 return true;
144
145 /* RS can only tile 16bpp or 32bpp formats */
146 return util_format_get_blocksize(pres->format) == 2 ||
147 util_format_get_blocksize(pres->format) == 4;
148 }
149
150 static inline struct etna_resource *
etna_resource(struct pipe_resource * p)151 etna_resource(struct pipe_resource *p)
152 {
153 return (struct etna_resource *)p;
154 }
155
156 void
157 etna_resource_used(struct etna_context *ctx, struct pipe_resource *prsc,
158 enum etna_resource_status status);
159
160 static inline void
resource_read(struct etna_context * ctx,struct pipe_resource * prsc)161 resource_read(struct etna_context *ctx, struct pipe_resource *prsc)
162 {
163 etna_resource_used(ctx, prsc, ETNA_PENDING_READ);
164 }
165
166 static inline void
resource_written(struct etna_context * ctx,struct pipe_resource * prsc)167 resource_written(struct etna_context *ctx, struct pipe_resource *prsc)
168 {
169 etna_resource_used(ctx, prsc, ETNA_PENDING_WRITE);
170 }
171
172 /* Allocate Tile Status for an etna resource.
173 * Tile status is a cache of the clear status per tile. This means a smaller
174 * surface has to be cleared which is faster.
175 * This is also called "fast clear". */
176 bool
177 etna_screen_resource_alloc_ts(struct pipe_screen *pscreen,
178 struct etna_resource *prsc);
179
180 struct pipe_resource *
181 etna_resource_alloc(struct pipe_screen *pscreen, unsigned layout,
182 uint64_t modifier, const struct pipe_resource *templat);
183
184 void
185 etna_resource_screen_init(struct pipe_screen *pscreen);
186
187 #endif
188