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/list.h"
34
35 struct pipe_screen;
36
37 struct etna_resource_level {
38 unsigned width, padded_width; /* in pixels */
39 unsigned height, padded_height; /* in samples */
40 unsigned offset; /* offset into memory area */
41 uint32_t stride; /* row stride */
42 uint32_t layer_stride; /* layer stride */
43 unsigned size; /* total size of memory area */
44
45 uint32_t ts_offset;
46 uint32_t ts_layer_stride;
47 uint32_t ts_size;
48 uint32_t clear_value; /* clear value of resource level (mainly for TS) */
49 bool ts_valid;
50 };
51
52 /* status of queued up but not flushed reads and write operations.
53 * In _transfer_map() we need to know if queued up rendering needs
54 * to be flushed to preserve the order of cpu and gpu access. */
55 enum etna_resource_status {
56 ETNA_PENDING_WRITE = 0x01,
57 ETNA_PENDING_READ = 0x02,
58 };
59
60 struct etna_resource {
61 struct pipe_resource base;
62 struct renderonly_scanout *scanout;
63 uint32_t seqno;
64 uint32_t flush_seqno;
65
66 /* only lod 0 used for non-texture buffers */
67 /* Layout for surface (tiled, multitiled, split tiled, ...) */
68 enum etna_surface_layout layout;
69 /* Horizontal alignment for texture unit (TEXTURE_HALIGN_*) */
70 unsigned halign;
71 struct etna_bo *bo; /* Surface video memory */
72 struct etna_bo *ts_bo; /* Tile status video memory */
73
74 struct etna_resource_level levels[ETNA_NUM_LOD];
75
76 /* When we are rendering to a texture, we need a differently tiled resource */
77 struct pipe_resource *texture;
78 /*
79 * If imported resources have an render/sampler incompatible tiling, we keep
80 * them as an external resource, which is blitted as needed.
81 */
82 struct pipe_resource *external;
83
84 enum etna_resource_status status;
85
86 /* resources accessed by queued but not flushed draws are tracked
87 * in the used_resources list. */
88 struct list_head list;
89 struct etna_context *pending_ctx;
90 };
91
92 /* returns TRUE if a is newer than b */
93 static inline bool
etna_resource_newer(struct etna_resource * a,struct etna_resource * b)94 etna_resource_newer(struct etna_resource *a, struct etna_resource *b)
95 {
96 return (int)(a->seqno - b->seqno) > 0;
97 }
98
99 /* returns TRUE if a is older than b */
100 static inline bool
etna_resource_older(struct etna_resource * a,struct etna_resource * b)101 etna_resource_older(struct etna_resource *a, struct etna_resource *b)
102 {
103 return (int)(a->seqno - b->seqno) < 0;
104 }
105
106 /* returns TRUE if a resource has a TS, and it is valid for at least one level */
107 bool
108 etna_resource_has_valid_ts(struct etna_resource *res);
109
110 /* returns TRUE if the resource needs a resolve to itself */
111 static inline bool
etna_resource_needs_flush(struct etna_resource * res)112 etna_resource_needs_flush(struct etna_resource *res)
113 {
114 return etna_resource_has_valid_ts(res) && ((int)(res->seqno - res->flush_seqno) > 0);
115 }
116
117 /* is the resource only used on the sampler? */
118 static inline bool
etna_resource_sampler_only(const struct pipe_resource * pres)119 etna_resource_sampler_only(const struct pipe_resource *pres)
120 {
121 return (pres->bind & (PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET |
122 PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_BLENDABLE)) ==
123 PIPE_BIND_SAMPLER_VIEW;
124 }
125
126 static inline struct etna_resource *
etna_resource(struct pipe_resource * p)127 etna_resource(struct pipe_resource *p)
128 {
129 return (struct etna_resource *)p;
130 }
131
132 void
133 etna_resource_used(struct etna_context *ctx, struct pipe_resource *prsc,
134 enum etna_resource_status status);
135
136 static inline void
resource_read(struct etna_context * ctx,struct pipe_resource * prsc)137 resource_read(struct etna_context *ctx, struct pipe_resource *prsc)
138 {
139 etna_resource_used(ctx, prsc, ETNA_PENDING_READ);
140 }
141
142 static inline void
resource_written(struct etna_context * ctx,struct pipe_resource * prsc)143 resource_written(struct etna_context *ctx, struct pipe_resource *prsc)
144 {
145 etna_resource_used(ctx, prsc, ETNA_PENDING_WRITE);
146 }
147
148 /* Allocate Tile Status for an etna resource.
149 * Tile status is a cache of the clear status per tile. This means a smaller
150 * surface has to be cleared which is faster.
151 * This is also called "fast clear". */
152 bool
153 etna_screen_resource_alloc_ts(struct pipe_screen *pscreen,
154 struct etna_resource *prsc);
155
156 struct pipe_resource *
157 etna_resource_alloc(struct pipe_screen *pscreen, unsigned layout,
158 uint64_t modifier, const struct pipe_resource *templat);
159
160 void
161 etna_resource_screen_init(struct pipe_screen *pscreen);
162
163 #endif
164