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