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         /* If there is a header preceding each slice, how big is
  48          * that header?  Used for AFBC */
  49         unsigned header_size;
  50
  51         /* If checksumming is enabled following the slice, what
  52          * is its offset/stride? */
  53         unsigned checksum_offset;
  54         unsigned checksum_stride;
  55
  56         /* Has anything been written to this slice? */
  57         bool initialized;
  58 };
  59
  60 struct panfrost_bo {
  61         struct pipe_reference reference;
  62
  63         /* Mapping for the entire object (all levels) */
  64         uint8_t *cpu;
  65
  66         /* GPU address for the object */
  67         mali_ptr gpu;
  68
  69         /* Size of all entire trees */
  70         size_t size;
  71
  72         int gem_handle;
  73 };
  74
  75 void
  76 panfrost_bo_reference(struct panfrost_bo *bo);
  77
  78 void
  79 panfrost_bo_unreference(struct pipe_screen *screen, struct panfrost_bo *bo);
  80
  81 struct panfrost_resource {
  82         struct pipe_resource base;
  83
  84         struct panfrost_bo *bo;
  85         struct renderonly_scanout *scanout;
  86
  87         struct panfrost_resource *separate_stencil;
  88
  89         struct util_range valid_buffer_range;
  90
  91         /* Description of the mip levels */
  92         struct panfrost_slice slices[MAX_MIP_LEVELS];
  93
  94         /* Distance from tree to tree */
  95         unsigned cubemap_stride;
  96
  97         /* Internal layout (tiled?) */
  98         enum panfrost_memory_layout layout;
  99
 100         /* Is transaciton elimination enabled? */
 101         bool checksummed;
 102 };
 103
 104 static inline struct panfrost_resource *
 105 pan_resource(struct pipe_resource *p)
 106 {
 107    return (struct panfrost_resource *)p;
 108 }
 109
 110 struct panfrost_gtransfer {
 111         struct pipe_transfer base;
 112         void *map;
 113 };
 114
 115 static inline struct panfrost_gtransfer *
 116 pan_transfer(struct pipe_transfer *p)
 117 {
 118    return (struct panfrost_gtransfer *)p;
 119 }
 120
 121 mali_ptr
 122 panfrost_get_texture_address(
 123                 struct panfrost_resource *rsrc,
 124                 unsigned level, unsigned face);
 125
 126 void panfrost_resource_screen_init(struct panfrost_screen *screen);
 127 void panfrost_resource_screen_deinit(struct panfrost_screen *screen);
 128
 129 void panfrost_resource_context_init(struct pipe_context *pctx);
 130
 131 /* AFBC */
 132
 133 bool
 134 panfrost_format_supports_afbc(enum pipe_format format);
 135
 136 unsigned
 137 panfrost_afbc_header_size(unsigned width, unsigned height);
 138
 139 /* Blitting */
 140
 141 void
 142 panfrost_blit(struct pipe_context *pipe,
 143               const struct pipe_blit_info *info);
 144
 145 void
 146 panfrost_blit_wallpaper(struct panfrost_context *ctx);
 147
 148 #endif /* PAN_RESOURCE_H */