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
  37 struct etna_context;
  38 struct pipe_screen;
  39 struct util_dynarray;
  40
  41 struct etna_resource_level {
  42    unsigned width, padded_width; /* in pixels */
  43    unsigned height, padded_height; /* in samples */
  44    unsigned offset; /* offset into memory area */
  45    uint32_t stride; /* row stride */
  46    uint32_t layer_stride; /* layer stride */
  47    unsigned size; /* total size of memory area */
  48
  49    uint32_t ts_offset;
  50    uint32_t ts_layer_stride;
  51    uint32_t ts_size;
  52    uint32_t clear_value; /* clear value of resource level (mainly for TS) */
  53    bool ts_valid;
  54    uint8_t ts_mode;
  55
  56    /* keep track if we have done some per block patching */
  57    bool patched;
  58    struct util_dynarray *patch_offsets;
  59 };
  60
  61 enum etna_resource_addressing_mode {
  62    ETNA_ADDRESSING_MODE_TILED = 0,
  63    ETNA_ADDRESSING_MODE_LINEAR,
  64 };
  65
  66 /* status of queued up but not flushed reads and write operations.
  67  * In _transfer_map() we need to know if queued up rendering needs
  68  * to be flushed to preserve the order of cpu and gpu access. */
  69 enum etna_resource_status {
  70    ETNA_PENDING_WRITE = 0x01,
  71    ETNA_PENDING_READ = 0x02,
  72 };
  73
  74 struct etna_resource {
  75    struct pipe_resource base;
  76    struct renderonly_scanout *scanout;
  77    uint32_t seqno;
  78    uint32_t flush_seqno;
  79
  80    /* only lod 0 used for non-texture buffers */
  81    /* Layout for surface (tiled, multitiled, split tiled, ...) */
  82    enum etna_surface_layout layout;
  83    enum etna_resource_addressing_mode addressing_mode;
  84    /* Horizontal alignment for texture unit (TEXTURE_HALIGN_*) */
  85    unsigned halign;
  86    struct etna_bo *bo; /* Surface video memory */
  87    struct etna_bo *ts_bo; /* Tile status video memory */
  88
  89    struct etna_resource_level levels[ETNA_NUM_LOD];
  90
  91    /* When we are rendering to a texture, we need a differently tiled resource */
  92    struct pipe_resource *texture;
  93    /*
  94     * If imported resources have an render/sampler incompatible tiling, we keep
  95     * them as an external resource, which is blitted as needed.
  96     */
  97    struct pipe_resource *external;
  98
  99    enum etna_resource_status status;
 100
 101    struct set *pending_ctx;
 102 };
 103
 104 /* returns TRUE if a is newer than b */
 105 static inline bool
 106 etna_resource_newer(struct etna_resource *a, struct etna_resource *b)
 107 {
 108    return (int)(a->seqno - b->seqno) > 0;
 109 }
 110
 111 /* returns TRUE if a is older than b */
 112 static inline bool
 113 etna_resource_older(struct etna_resource *a, struct etna_resource *b)
 114 {
 115    return (int)(a->seqno - b->seqno) < 0;
 116 }
 117
 118 /* returns TRUE if a resource has a TS, and it is valid for at least one level */
 119 bool
 120 etna_resource_has_valid_ts(struct etna_resource *res);
 121
 122 /* returns TRUE if the resource needs a resolve to itself */
 123 static inline bool
 124 etna_resource_needs_flush(struct etna_resource *res)
 125 {
 126    return etna_resource_has_valid_ts(res) && ((int)(res->seqno - res->flush_seqno) > 0);
 127 }
 128
 129 /* is the resource only used on the sampler? */
 130 static inline bool
 131 etna_resource_sampler_only(const struct pipe_resource *pres)
 132 {
 133    return (pres->bind & (PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET |
 134                          PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_BLENDABLE)) ==
 135           PIPE_BIND_SAMPLER_VIEW;
 136 }
 137
 138 static inline struct etna_resource *
 139 etna_resource(struct pipe_resource *p)
 140 {
 141    return (struct etna_resource *)p;
 142 }
 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                     enum etna_resource_addressing_mode mode, uint64_t modifier,
 171                     const struct pipe_resource *templat);
 172
 173 void
 174 etna_resource_screen_init(struct pipe_screen *pscreen);
 175
 176 #endif