src/gallium/drivers/panfrost/pan_resource.h

   1 /*
   2  * © Copyright2018-2019 Alyssa Rosenzweig
   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, sublicense,
   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 next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * 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 NONINFRINGEMENT.  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 FROM,
  20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  21  * SOFTWARE.
  22  *
  23  */
  24
  25
  26 #ifndef PAN_RESOURCE_H
  27 #define PAN_RESOURCE_H
  28
  29 #include <panfrost-job.h>
  30 #include "pan_screen.h"
  31 #include "pan_allocate.h"
  32 #include "drm-uapi/drm.h"
  33 #include "util/u_range.h"
  34
  35 /* Describes the memory layout of a BO */
  36
  37 enum panfrost_memory_layout {
  38         PAN_LINEAR,
  39         PAN_TILED,
  40         PAN_AFBC
  41 };
  42
  43 struct panfrost_slice {
  44         unsigned offset;
  45         unsigned stride;
  46
  47         /* Has anything been written to this slice? */
  48         bool initialized;
  49 };
  50
  51 struct panfrost_bo {
  52         struct pipe_reference reference;
  53
  54         /* Description of the mip levels */
  55         struct panfrost_slice slices[MAX_MIP_LEVELS];
  56
  57         /* Mapping for the entire object (all levels) */
  58         uint8_t *cpu;
  59
  60         /* GPU address for the object */
  61         mali_ptr gpu;
  62
  63         /* Size of all entire trees */
  64         size_t size;
  65
  66         /* Distance from tree to tree */
  67         unsigned cubemap_stride;
  68
  69         /* Set if this bo was imported rather than allocated */
  70         bool imported;
  71
  72         /* Internal layout (tiled?) */
  73         enum panfrost_memory_layout layout;
  74
  75         /* If AFBC is enabled for this resource, we lug around an AFBC
  76          * metadata buffer as well. The actual AFBC resource is also in
  77          * afbc_slab (only defined for AFBC) at position afbc_main_offset
  78          */
  79
  80         struct panfrost_memory afbc_slab;
  81         int afbc_metadata_size;
  82
  83         /* If transaciton elimination is enabled, we have a dedicated
  84          * buffer for that as well. */
  85
  86         bool has_checksum;
  87         struct panfrost_memory checksum_slab;
  88         int checksum_stride;
  89
  90         int gem_handle;
  91 };
  92
  93 void
  94 panfrost_bo_reference(struct panfrost_bo *bo);
  95
  96 void
  97 panfrost_bo_unreference(struct pipe_screen *screen, struct panfrost_bo *bo);
  98
  99 struct panfrost_resource {
 100         struct pipe_resource base;
 101
 102         struct panfrost_bo *bo;
 103         struct renderonly_scanout *scanout;
 104
 105         struct panfrost_resource *separate_stencil;
 106
 107         struct util_range valid_buffer_range;
 108 };
 109
 110 static inline struct panfrost_resource *
 111 pan_resource(struct pipe_resource *p)
 112 {
 113    return (struct panfrost_resource *)p;
 114 }
 115
 116 struct panfrost_gtransfer {
 117         struct pipe_transfer base;
 118         void *map;
 119 };
 120
 121 static inline struct panfrost_gtransfer *
 122 pan_transfer(struct pipe_transfer *p)
 123 {
 124    return (struct panfrost_gtransfer *)p;
 125 }
 126
 127 void panfrost_resource_screen_init(struct panfrost_screen *screen);
 128 void panfrost_resource_screen_deinit(struct panfrost_screen *screen);
 129
 130 void panfrost_resource_context_init(struct pipe_context *pctx);
 131
 132 /* AFBC */
 133
 134 bool
 135 panfrost_format_supports_afbc(enum pipe_format format);
 136
 137 void
 138 panfrost_enable_afbc(struct panfrost_context *ctx, struct panfrost_resource *rsrc, bool ds);
 139
 140 /* Blitting */
 141
 142 void
 143 panfrost_blit(struct pipe_context *pipe,
 144               const struct pipe_blit_info *info);
 145
 146 void
 147 panfrost_blit_wallpaper(struct panfrost_context *ctx);
 148
 149 #endif /* PAN_RESOURCE_H */