src/gallium/winsys/r600/drm/r600_bo.c

   1 /*
   2  * Copyright 2010 Dave Airlie
   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  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *      Dave Airlie
  25  */
  26 #include "r600_priv.h"
  27 #include "r600d.h"
  28 #include "state_tracker/drm_driver.h"
  29 #include "radeon_drm.h"
  30
  31 struct r600_bo *r600_bo(struct radeon *radeon,
  32                         unsigned size, unsigned alignment,
  33                         unsigned binding, unsigned usage)
  34 {
  35         struct r600_bo *bo;
  36         struct radeon_bo *rbo;
  37         uint32_t initial_domain, domains;
  38
  39         /* Staging resources particpate in transfers and blits only
  40          * and are used for uploads and downloads from regular
  41          * resources.  We generate them internally for some transfers.
  42          */
  43         if (usage == PIPE_USAGE_STAGING) {
  44                 domains = RADEON_GEM_DOMAIN_GTT;
  45                 initial_domain = RADEON_GEM_DOMAIN_GTT;
  46         } else {
  47                 domains = RADEON_GEM_DOMAIN_GTT | RADEON_GEM_DOMAIN_VRAM;
  48
  49                 switch(usage) {
  50                 case PIPE_USAGE_DYNAMIC:
  51                 case PIPE_USAGE_STREAM:
  52                 case PIPE_USAGE_STAGING:
  53                         initial_domain = RADEON_GEM_DOMAIN_GTT;
  54                         break;
  55                 case PIPE_USAGE_DEFAULT:
  56                 case PIPE_USAGE_STATIC:
  57                 case PIPE_USAGE_IMMUTABLE:
  58                 default:
  59                         initial_domain = RADEON_GEM_DOMAIN_VRAM;
  60                         break;
  61                 }
  62         }
  63
  64         rbo = radeon_bo(radeon, 0, size, alignment, binding, initial_domain);
  65         if (rbo == NULL) {
  66                 return NULL;
  67         }
  68
  69         bo = calloc(1, sizeof(struct r600_bo));
  70         bo->domains = domains;
  71         bo->bo = rbo;
  72
  73         pipe_reference_init(&bo->reference, 1);
  74         return bo;
  75 }
  76
  77 struct r600_bo *r600_bo_handle(struct radeon *radeon, struct winsys_handle *whandle,
  78                                unsigned *stride, unsigned *array_mode)
  79 {
  80         struct r600_bo *bo = calloc(1, sizeof(struct r600_bo));
  81         struct radeon_bo *rbo;
  82         unsigned tiling_flags;
  83
  84         rbo = bo->bo = radeon_bo(radeon, whandle->handle, 0, 0, 0, 0);
  85         if (rbo == NULL) {
  86                 free(bo);
  87                 return NULL;
  88         }
  89
  90         pipe_reference_init(&bo->reference, 1);
  91         bo->domains = RADEON_GEM_DOMAIN_GTT | RADEON_GEM_DOMAIN_VRAM;
  92
  93         if (stride)
  94                 *stride = whandle->stride;
  95
  96         radeon_bo_get_tiling_flags(radeon, rbo, &tiling_flags);
  97         if (array_mode) {
  98                 if (tiling_flags) {
  99                         if (tiling_flags & RADEON_TILING_MACRO)
 100                                 *array_mode = V_0280A0_ARRAY_2D_TILED_THIN1;
 101                         else if (tiling_flags & RADEON_TILING_MICRO)
 102                                 *array_mode = V_0280A0_ARRAY_1D_TILED_THIN1;
 103                 } else {
 104                         *array_mode = 0;
 105                 }
 106         }
 107         return bo;
 108 }
 109
 110 void *r600_bo_map(struct radeon *radeon, struct r600_bo *bo, unsigned usage, void *ctx)
 111 {
 112         struct pipe_context *pctx = ctx;
 113
 114         if (usage & PIPE_TRANSFER_UNSYNCHRONIZED) {
 115                 radeon_bo_map(radeon, bo->bo);
 116                 return (uint8_t *) bo->bo->data;
 117         }
 118
 119         if (p_atomic_read(&bo->bo->reference.count) > 1) {
 120                 if (usage & PIPE_TRANSFER_DONTBLOCK) {
 121                         return NULL;
 122                 }
 123                 if (ctx) {
 124                         pctx->flush(pctx, NULL);
 125                 }
 126         }
 127
 128         if (usage & PIPE_TRANSFER_DONTBLOCK) {
 129                 uint32_t domain;
 130
 131                 if (radeon_bo_busy(radeon, bo->bo, &domain))
 132                         return NULL;
 133                 if (radeon_bo_map(radeon, bo->bo)) {
 134                         return NULL;
 135                 }
 136                 goto out;
 137         }
 138
 139         radeon_bo_map(radeon, bo->bo);
 140         if (radeon_bo_wait(radeon, bo->bo)) {
 141                 radeon_bo_unmap(radeon, bo->bo);
 142                 return NULL;
 143         }
 144
 145 out:
 146         return (uint8_t *) bo->bo->data;
 147 }
 148
 149 void r600_bo_unmap(struct radeon *radeon, struct r600_bo *bo)
 150 {
 151         radeon_bo_unmap(radeon, bo->bo);
 152 }
 153
 154 void r600_bo_destroy(struct radeon *radeon, struct r600_bo *bo)
 155 {
 156         radeon_bo_reference(radeon, &bo->bo, NULL);
 157         free(bo);
 158 }
 159
 160 boolean r600_bo_get_winsys_handle(struct radeon *radeon, struct r600_bo *bo,
 161                                 unsigned stride, struct winsys_handle *whandle)
 162 {
 163         whandle->stride = stride;
 164         switch(whandle->type) {
 165         case DRM_API_HANDLE_TYPE_KMS:
 166                 whandle->handle = bo->bo->handle;
 167                 break;
 168         case DRM_API_HANDLE_TYPE_SHARED:
 169                 if (radeon_bo_get_name(radeon, bo->bo, &whandle->handle))
 170                         return FALSE;
 171                 break;
 172         default:
 173                 return FALSE;
 174         }
 175
 176         return TRUE;
 177 }