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/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
  97    enum etna_resource_status status;
  98
  99    struct set *pending_ctx;
 100 };
 101
 102 /* returns TRUE if a is newer than b */
 103 static inline bool
 104 etna_resource_newer(struct etna_resource *a, struct etna_resource *b)
 105 {
 106    return (int)(a->seqno - b->seqno) > 0;
 107 }
 108
 109 /* returns TRUE if a is older than b */
 110 static inline bool
 111 etna_resource_older(struct etna_resource *a, struct etna_resource *b)
 112 {
 113    return (int)(a->seqno - b->seqno) < 0;
 114 }
 115
 116 /* returns TRUE if a resource has a TS, and it is valid for at least one level */
 117 bool
 118 etna_resource_has_valid_ts(struct etna_resource *res);
 119
 120 /* returns TRUE if the resource needs a resolve to itself */
 121 static inline bool
 122 etna_resource_needs_flush(struct etna_resource *res)
 123 {
 124    return etna_resource_has_valid_ts(res) && ((int)(res->seqno - res->flush_seqno) > 0);
 125 }
 126
 127 /* is the resource only used on the sampler? */
 128 static inline bool
 129 etna_resource_sampler_only(const struct pipe_resource *pres)
 130 {
 131    return (pres->bind & (PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET |
 132                          PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_BLENDABLE)) ==
 133           PIPE_BIND_SAMPLER_VIEW;
 134 }
 135
 136 static inline bool
 137 etna_resource_hw_tileable(bool use_blt, const struct pipe_resource *pres)
 138 {
 139    if (use_blt)
 140       return true;
 141
 142    /* RS can only tile 16bpp or 32bpp formats */
 143    return util_format_get_blocksize(pres->format) == 2 ||
 144           util_format_get_blocksize(pres->format) == 4;
 145 }
 146
 147 static inline struct etna_resource *
 148 etna_resource(struct pipe_resource *p)
 149 {
 150    return (struct etna_resource *)p;
 151 }
 152
 153 void
 154 etna_resource_used(struct etna_context *ctx, struct pipe_resource *prsc,
 155                    enum etna_resource_status status);
 156
 157 static inline void
 158 resource_read(struct etna_context *ctx, struct pipe_resource *prsc)
 159 {
 160    etna_resource_used(ctx, prsc, ETNA_PENDING_READ);
 161 }
 162
 163 static inline void
 164 resource_written(struct etna_context *ctx, struct pipe_resource *prsc)
 165 {
 166    etna_resource_used(ctx, prsc, ETNA_PENDING_WRITE);
 167 }
 168
 169 /* Allocate Tile Status for an etna resource.
 170  * Tile status is a cache of the clear status per tile. This means a smaller
 171  * surface has to be cleared which is faster.
 172  * This is also called "fast clear". */
 173 bool
 174 etna_screen_resource_alloc_ts(struct pipe_screen *pscreen,
 175                               struct etna_resource *prsc);
 176
 177 struct pipe_resource *
 178 etna_resource_alloc(struct pipe_screen *pscreen, unsigned layout,
 179                     uint64_t modifier, const struct pipe_resource *templat);
 180
 181 void
 182 etna_resource_screen_init(struct pipe_screen *pscreen);
 183
 184 #endif