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 <pipe/p_compiler.h>
  27 #include <pipe/p_screen.h>
  28 #include <pipebuffer/pb_bufmgr.h>
  29 #include "state_tracker/drm_driver.h"
  30 #include "r600_priv.h"
  31 #include "r600d.h"
  32 #include "drm.h"
  33 #include "radeon_drm.h"
  34
  35 struct r600_bo *r600_bo(struct radeon *radeon,
  36                         unsigned size, unsigned alignment,
  37                         unsigned binding, unsigned usage)
  38 {
  39         struct r600_bo *bo;
  40         struct radeon_bo *rbo;
  41         uint32_t initial_domain, domains;
  42
  43         /* Staging resources particpate in transfers and blits only
  44          * and are used for uploads and downloads from regular
  45          * resources.  We generate them internally for some transfers.
  46          */
  47         if (usage == PIPE_USAGE_STAGING)
  48                 domains = RADEON_GEM_DOMAIN_CPU | RADEON_GEM_DOMAIN_GTT;
  49         else
  50                 domains = (RADEON_GEM_DOMAIN_CPU |
  51                                 RADEON_GEM_DOMAIN_GTT |
  52                                 RADEON_GEM_DOMAIN_VRAM);
  53
  54         if (binding & (PIPE_BIND_CONSTANT_BUFFER | PIPE_BIND_VERTEX_BUFFER | PIPE_BIND_INDEX_BUFFER)) {
  55                 bo = r600_bomgr_bo_create(radeon->bomgr, size, alignment, *radeon->cfence);
  56                 if (bo) {
  57                         bo->domains = domains;
  58                         return bo;
  59                 }
  60         }
  61
  62         switch(usage) {
  63         case PIPE_USAGE_DYNAMIC:
  64         case PIPE_USAGE_STREAM:
  65         case PIPE_USAGE_STAGING:
  66                 initial_domain = RADEON_GEM_DOMAIN_GTT;
  67                 break;
  68         case PIPE_USAGE_DEFAULT:
  69         case PIPE_USAGE_STATIC:
  70         case PIPE_USAGE_IMMUTABLE:
  71         default:
  72                 initial_domain = RADEON_GEM_DOMAIN_VRAM;
  73                 break;
  74         }
  75         rbo = radeon_bo(radeon, 0, size, alignment, initial_domain);
  76         if (rbo == NULL) {
  77                 return NULL;
  78         }
  79
  80         bo = calloc(1, sizeof(struct r600_bo));
  81         bo->size = size;
  82         bo->alignment = alignment;
  83         bo->domains = domains;
  84         bo->bo = rbo;
  85         if (binding & (PIPE_BIND_CONSTANT_BUFFER | PIPE_BIND_VERTEX_BUFFER | PIPE_BIND_INDEX_BUFFER)) {
  86                 r600_bomgr_bo_init(radeon->bomgr, bo);
  87         }
  88
  89         pipe_reference_init(&bo->reference, 1);
  90         return bo;
  91 }
  92
  93 struct r600_bo *r600_bo_handle(struct radeon *radeon,
  94                                unsigned handle, unsigned *array_mode)
  95 {
  96         struct r600_bo *bo = calloc(1, sizeof(struct r600_bo));
  97         struct radeon_bo *rbo;
  98
  99         rbo = bo->bo = radeon_bo(radeon, handle, 0, 0, 0);
 100         if (rbo == NULL) {
 101                 free(bo);
 102                 return NULL;
 103         }
 104         bo->size = rbo->size;
 105         bo->domains = (RADEON_GEM_DOMAIN_CPU |
 106                         RADEON_GEM_DOMAIN_GTT |
 107                         RADEON_GEM_DOMAIN_VRAM);
 108
 109         pipe_reference_init(&bo->reference, 1);
 110
 111         radeon_bo_get_tiling_flags(radeon, rbo, &bo->tiling_flags, &bo->kernel_pitch);
 112         if (array_mode) {
 113                 if (bo->tiling_flags) {
 114                         if (bo->tiling_flags & RADEON_TILING_MACRO)
 115                                 *array_mode = V_0280A0_ARRAY_2D_TILED_THIN1;
 116                         else if (bo->tiling_flags & RADEON_TILING_MICRO)
 117                                 *array_mode = V_0280A0_ARRAY_1D_TILED_THIN1;
 118                 } else {
 119                         *array_mode = 0;
 120                 }
 121         }
 122         return bo;
 123 }
 124
 125 void *r600_bo_map(struct radeon *radeon, struct r600_bo *bo, unsigned usage, void *ctx)
 126 {
 127         struct pipe_context *pctx = ctx;
 128
 129         if (usage & PIPE_TRANSFER_UNSYNCHRONIZED) {
 130                 radeon_bo_map(radeon, bo->bo);
 131                 return (uint8_t *) bo->bo->data + bo->offset;
 132         }
 133
 134         if (p_atomic_read(&bo->bo->reference.count) > 1) {
 135                 if (usage & PIPE_TRANSFER_DONTBLOCK) {
 136                         return NULL;
 137                 }
 138                 if (ctx) {
 139                         pctx->flush(pctx, NULL);
 140                 }
 141         }
 142
 143         if (usage & PIPE_TRANSFER_DONTBLOCK) {
 144                 uint32_t domain;
 145
 146                 if (radeon_bo_busy(radeon, bo->bo, &domain))
 147                         return NULL;
 148                 if (radeon_bo_map(radeon, bo->bo)) {
 149                         return NULL;
 150                 }
 151                 goto out;
 152         }
 153
 154         radeon_bo_map(radeon, bo->bo);
 155         if (radeon_bo_wait(radeon, bo->bo)) {
 156                 radeon_bo_unmap(radeon, bo->bo);
 157                 return NULL;
 158         }
 159
 160 out:
 161         return (uint8_t *) bo->bo->data + bo->offset;
 162 }
 163
 164 void r600_bo_unmap(struct radeon *radeon, struct r600_bo *bo)
 165 {
 166         radeon_bo_unmap(radeon, bo->bo);
 167 }
 168
 169 void r600_bo_destroy(struct radeon *radeon, struct r600_bo *bo)
 170 {
 171         if (bo->manager_id) {
 172                 if (!r600_bomgr_bo_destroy(radeon->bomgr, bo)) {
 173                         /* destroy is delayed by buffer manager */
 174                         return;
 175                 }
 176         }
 177         radeon_bo_reference(radeon, &bo->bo, NULL);
 178         free(bo);
 179 }
 180
 181 boolean r600_bo_get_winsys_handle(struct radeon *radeon, struct r600_bo *bo,
 182                                 unsigned stride, struct winsys_handle *whandle)
 183 {
 184         whandle->stride = stride;
 185         switch(whandle->type) {
 186         case DRM_API_HANDLE_TYPE_KMS:
 187                 whandle->handle = bo->bo->handle;
 188                 break;
 189         case DRM_API_HANDLE_TYPE_SHARED:
 190                 if (radeon_bo_get_name(radeon, bo->bo, &whandle->handle))
 191                         return FALSE;
 192                 break;
 193         default:
 194                 return FALSE;
 195         }
 196
 197         return TRUE;
 198 }