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_resource {
  61         struct pipe_resource base;
  62         struct {
  63                 struct pipe_box biggest_rect;
  64                 struct pipe_scissor_state extent;
  65         } damage;
  66
  67         struct panfrost_bo *bo;
  68         struct renderonly_scanout *scanout;
  69
  70         struct panfrost_resource *separate_stencil;
  71
  72         struct util_range valid_buffer_range;
  73
  74         /* Description of the mip levels */
  75         struct panfrost_slice slices[MAX_MIP_LEVELS];
  76
  77         /* Distance from tree to tree */
  78         unsigned cubemap_stride;
  79
  80         /* Internal layout (tiled?) */
  81         enum panfrost_memory_layout layout;
  82
  83         /* Is transaciton elimination enabled? */
  84         bool checksummed;
  85 };
  86
  87 static inline struct panfrost_resource *
  88 pan_resource(struct pipe_resource *p)
  89 {
  90         return (struct panfrost_resource *)p;
  91 }
  92
  93 struct panfrost_gtransfer {
  94         struct pipe_transfer base;
  95         void *map;
  96 };
  97
  98 static inline struct panfrost_gtransfer *
  99 pan_transfer(struct pipe_transfer *p)
 100 {
 101         return (struct panfrost_gtransfer *)p;
 102 }
 103
 104 mali_ptr
 105 panfrost_get_texture_address(
 106         struct panfrost_resource *rsrc,
 107         unsigned level, unsigned face);
 108
 109 void panfrost_resource_screen_init(struct panfrost_screen *screen);
 110
 111 void panfrost_resource_context_init(struct pipe_context *pctx);
 112
 113 void
 114 panfrost_resource_hint_layout(
 115                 struct panfrost_screen *screen,
 116                 struct panfrost_resource *rsrc,
 117                 enum panfrost_memory_layout layout,
 118                 signed weight);
 119
 120 /* AFBC */
 121
 122 bool
 123 panfrost_format_supports_afbc(enum pipe_format format);
 124
 125 unsigned
 126 panfrost_afbc_header_size(unsigned width, unsigned height);
 127
 128 /* Blitting */
 129
 130 void
 131 panfrost_blit(struct pipe_context *pipe,
 132               const struct pipe_blit_info *info);
 133
 134 void
 135 panfrost_blit_wallpaper(struct panfrost_context *ctx,
 136                         struct pipe_box *box);
 137
 138 void
 139 panfrost_resource_set_damage_region(struct pipe_screen *screen,
 140                                     struct pipe_resource *res,
 141                                     unsigned int nrects,
 142                                     const struct pipe_box *rects);
 143
 144 #endif /* PAN_RESOURCE_H */