src/gallium/drivers/etnaviv/etnaviv_resource.h

   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 #include "util/set.h"
  35 #include "util/u_helpers.h"
  36 #include "util/u_range.h"
  37
  38 struct etna_context;
  39 struct pipe_screen;
  40 struct util_dynarray;
  41
  42 struct etna_resource_level {
  43    unsigned width, padded_width; /* in pixels */
  44    unsigned height, padded_height; /* in samples */
  45    unsigned depth;
  46    unsigned offset; /* offset into memory area */
  47    uint32_t stride; /* row stride */
  48    uint32_t layer_stride; /* layer stride */
  49    unsigned size; /* total size of memory area */
  50
  51    uint32_t ts_offset;
  52    uint32_t ts_layer_stride;
  53    uint32_t ts_size;
  54    uint32_t clear_value; /* clear value of resource level (mainly for TS) */
  55    bool ts_valid;
  56    uint8_t ts_mode;
  57    int8_t ts_compress_fmt; /* COLOR_COMPRESSION_FORMAT_* (-1 = disable) */
  58
  59    /* keep track if we have done some per block patching */
  60    bool patched;
  61    struct util_dynarray *patch_offsets;
  62 };
  63
  64 /* status of queued up but not flushed reads and write operations.
  65  * In _transfer_map() we need to know if queued up rendering needs
  66  * to be flushed to preserve the order of cpu and gpu access. */
  67 enum etna_resource_status {
  68    ETNA_PENDING_WRITE = 0x01,
  69    ETNA_PENDING_READ = 0x02,
  70 };
  71
  72 struct etna_resource {
  73    struct pipe_resource base;
  74    struct renderonly_scanout *scanout;
  75    uint32_t seqno;
  76    uint32_t flush_seqno;
  77
  78    /* only lod 0 used for non-texture buffers */
  79    /* Layout for surface (tiled, multitiled, split tiled, ...) */
  80    enum etna_surface_layout layout;
  81    /* Horizontal alignment for texture unit (TEXTURE_HALIGN_*) */
  82    unsigned halign;
  83    struct etna_bo *bo; /* Surface video memory */
  84    struct etna_bo *ts_bo; /* Tile status video memory */
  85
  86    struct etna_resource_level levels[ETNA_NUM_LOD];
  87
  88    /* buffer range that has been initialized */
  89    struct util_range valid_buffer_range;
  90
  91    /* for when TE doesn't support the base layout */
  92    struct pipe_resource *texture;
  93    /* for when PE doesn't support the base layout */
  94    struct pipe_resource *render;
  95
  96    enum etna_resource_status status;
  97
  98    struct set *pending_ctx;
  99 };
 100
 101 /* returns TRUE if a is newer than b */
 102 static inline bool
 103 etna_resource_newer(struct etna_resource *a, struct etna_resource *b)
 104 {
 105    return (int)(a->seqno - b->seqno) > 0;
 106 }
 107
 108 /* returns TRUE if a is older than b */
 109 static inline bool
 110 etna_resource_older(struct etna_resource *a, struct etna_resource *b)
 111 {
 112    return (int)(a->seqno - b->seqno) < 0;
 113 }
 114
 115 /* returns TRUE if a resource has a TS, and it is valid for at least one level */
 116 bool
 117 etna_resource_has_valid_ts(struct etna_resource *res);
 118
 119 /* returns TRUE if the resource needs a resolve to itself */
 120 static inline bool
 121 etna_resource_needs_flush(struct etna_resource *res)
 122 {
 123    return etna_resource_has_valid_ts(res) && ((int)(res->seqno - res->flush_seqno) > 0);
 124 }
 125
 126 /* is the resource only used on the sampler? */
 127 static inline bool
 128 etna_resource_sampler_only(const struct pipe_resource *pres)
 129 {
 130    return (pres->bind & (PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET |
 131                          PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_BLENDABLE)) ==
 132           PIPE_BIND_SAMPLER_VIEW;
 133 }
 134
 135 static inline struct etna_resource *
 136 etna_resource(struct pipe_resource *p)
 137 {
 138    return (struct etna_resource *)p;
 139 }
 140
 141 enum etna_resource_status
 142 etna_resource_get_status(struct etna_context *ctx, struct etna_resource *rsc);
 143
 144 void
 145 etna_resource_used(struct etna_context *ctx, struct pipe_resource *prsc,
 146                    enum etna_resource_status status);
 147
 148 static inline void
 149 resource_read(struct etna_context *ctx, struct pipe_resource *prsc)
 150 {
 151    etna_resource_used(ctx, prsc, ETNA_PENDING_READ);
 152 }
 153
 154 static inline void
 155 resource_written(struct etna_context *ctx, struct pipe_resource *prsc)
 156 {
 157    etna_resource_used(ctx, prsc, ETNA_PENDING_WRITE);
 158 }
 159
 160 /* Allocate Tile Status for an etna resource.
 161  * Tile status is a cache of the clear status per tile. This means a smaller
 162  * surface has to be cleared which is faster.
 163  * This is also called "fast clear". */
 164 bool
 165 etna_screen_resource_alloc_ts(struct pipe_screen *pscreen,
 166                               struct etna_resource *prsc);
 167
 168 struct pipe_resource *
 169 etna_resource_alloc(struct pipe_screen *pscreen, unsigned layout,
 170                     uint64_t modifier, const struct pipe_resource *templat);
 171
 172 void
 173 etna_resource_screen_init(struct pipe_screen *pscreen);
 174
 175 #endif