src/gallium/drivers/radeonsi/r600_buffer.c

   1 /*
   2  * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
   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  *      Jerome Glisse
  25  *      Corbin Simpson <MostAwesomeDude@gmail.com>
  26  */
  27 #include <byteswap.h>
  28
  29 #include "pipe/p_screen.h"
  30 #include "util/u_format.h"
  31 #include "util/u_math.h"
  32 #include "util/u_inlines.h"
  33 #include "util/u_memory.h"
  34 #include "util/u_upload_mgr.h"
  35
  36 #include "r600.h"
  37 #include "radeonsi_pipe.h"
  38
  39 static void r600_buffer_destroy(struct pipe_screen *screen,
  40                                 struct pipe_resource *buf)
  41 {
  42         struct r600_screen *rscreen = (struct r600_screen*)screen;
  43         struct r600_resource *rbuffer = r600_resource(buf);
  44
  45         pb_reference(&rbuffer->buf, NULL);
  46         util_slab_free(&rscreen->pool_buffers, rbuffer);
  47 }
  48
  49 static struct pipe_transfer *r600_get_transfer(struct pipe_context *ctx,
  50                                                struct pipe_resource *resource,
  51                                                unsigned level,
  52                                                unsigned usage,
  53                                                const struct pipe_box *box)
  54 {
  55         struct r600_context *rctx = (struct r600_context*)ctx;
  56         struct pipe_transfer *transfer = util_slab_alloc(&rctx->pool_transfers);
  57
  58         transfer->resource = resource;
  59         transfer->level = level;
  60         transfer->usage = usage;
  61         transfer->box = *box;
  62         transfer->stride = 0;
  63         transfer->layer_stride = 0;
  64         transfer->data = NULL;
  65
  66         /* Note strides are zero, this is ok for buffers, but not for
  67          * textures 2d & higher at least.
  68          */
  69         return transfer;
  70 }
  71
  72 static void *r600_buffer_transfer_map(struct pipe_context *pipe,
  73                                       struct pipe_transfer *transfer)
  74 {
  75         struct r600_resource *rbuffer = r600_resource(transfer->resource);
  76         struct r600_context *rctx = (struct r600_context*)pipe;
  77         uint8_t *data;
  78
  79         if (rbuffer->b.b.user_ptr)
  80                 return (uint8_t*)rbuffer->b.b.user_ptr + transfer->box.x;
  81
  82         data = rctx->ws->buffer_map(rbuffer->cs_buf, rctx->cs, transfer->usage);
  83         if (!data)
  84                 return NULL;
  85
  86         return (uint8_t*)data + transfer->box.x;
  87 }
  88
  89 static void r600_buffer_transfer_unmap(struct pipe_context *pipe,
  90                                         struct pipe_transfer *transfer)
  91 {
  92         /* no-op */
  93 }
  94
  95 static void r600_buffer_transfer_flush_region(struct pipe_context *pipe,
  96                                                 struct pipe_transfer *transfer,
  97                                                 const struct pipe_box *box)
  98 {
  99 }
 100
 101 static void r600_transfer_destroy(struct pipe_context *ctx,
 102                                   struct pipe_transfer *transfer)
 103 {
 104         struct r600_context *rctx = (struct r600_context*)ctx;
 105         util_slab_free(&rctx->pool_transfers, transfer);
 106 }
 107
 108 static const struct u_resource_vtbl r600_buffer_vtbl =
 109 {
 110         u_default_resource_get_handle,          /* get_handle */
 111         r600_buffer_destroy,                    /* resource_destroy */
 112         r600_get_transfer,                      /* get_transfer */
 113         r600_transfer_destroy,                  /* transfer_destroy */
 114         r600_buffer_transfer_map,               /* transfer_map */
 115         r600_buffer_transfer_flush_region,      /* transfer_flush_region */
 116         r600_buffer_transfer_unmap,             /* transfer_unmap */
 117         NULL    /* transfer_inline_write */
 118 };
 119
 120 bool r600_init_resource(struct r600_screen *rscreen,
 121                         struct r600_resource *res,
 122                         unsigned size, unsigned alignment,
 123                         unsigned bind, unsigned usage)
 124 {
 125         uint32_t initial_domain, domains;
 126
 127         /* Staging resources particpate in transfers and blits only
 128          * and are used for uploads and downloads from regular
 129          * resources.  We generate them internally for some transfers.
 130          */
 131         if (usage == PIPE_USAGE_STAGING) {
 132                 domains = RADEON_DOMAIN_GTT;
 133                 initial_domain = RADEON_DOMAIN_GTT;
 134         } else {
 135                 domains = RADEON_DOMAIN_GTT | RADEON_DOMAIN_VRAM;
 136
 137                 switch(usage) {
 138                 case PIPE_USAGE_DYNAMIC:
 139                 case PIPE_USAGE_STREAM:
 140                 case PIPE_USAGE_STAGING:
 141                         initial_domain = RADEON_DOMAIN_GTT;
 142                         break;
 143                 case PIPE_USAGE_DEFAULT:
 144                 case PIPE_USAGE_STATIC:
 145                 case PIPE_USAGE_IMMUTABLE:
 146                 default:
 147                         initial_domain = RADEON_DOMAIN_VRAM;
 148                         break;
 149                 }
 150         }
 151
 152         res->buf = rscreen->ws->buffer_create(rscreen->ws, size, alignment, bind, initial_domain);
 153         if (!res->buf) {
 154                 return false;
 155         }
 156
 157         res->cs_buf = rscreen->ws->buffer_get_cs_handle(res->buf);
 158         res->domains = domains;
 159         return true;
 160 }
 161
 162 struct pipe_resource *r600_buffer_create(struct pipe_screen *screen,
 163                                          const struct pipe_resource *templ)
 164 {
 165         struct r600_screen *rscreen = (struct r600_screen*)screen;
 166         struct r600_resource *rbuffer;
 167         /* XXX We probably want a different alignment for buffers and textures. */
 168         unsigned alignment = 4096;
 169
 170         rbuffer = util_slab_alloc(&rscreen->pool_buffers);
 171
 172         rbuffer->b.b = *templ;
 173         pipe_reference_init(&rbuffer->b.b.reference, 1);
 174         rbuffer->b.b.screen = screen;
 175         rbuffer->b.vtbl = &r600_buffer_vtbl;
 176         rbuffer->b.b.user_ptr = NULL;
 177
 178         if (!r600_init_resource(rscreen, rbuffer, templ->width0, alignment, templ->bind, templ->usage)) {
 179                 util_slab_free(&rscreen->pool_buffers, rbuffer);
 180                 return NULL;
 181         }
 182         return &rbuffer->b.b;
 183 }
 184
 185 struct pipe_resource *r600_user_buffer_create(struct pipe_screen *screen,
 186                                               void *ptr, unsigned bytes,
 187                                               unsigned bind)
 188 {
 189         struct r600_screen *rscreen = (struct r600_screen*)screen;
 190         struct r600_resource *rbuffer;
 191
 192         rbuffer = util_slab_alloc(&rscreen->pool_buffers);
 193
 194         pipe_reference_init(&rbuffer->b.b.reference, 1);
 195         rbuffer->b.vtbl = &r600_buffer_vtbl;
 196         rbuffer->b.b.screen = screen;
 197         rbuffer->b.b.target = PIPE_BUFFER;
 198         rbuffer->b.b.format = PIPE_FORMAT_R8_UNORM;
 199         rbuffer->b.b.usage = PIPE_USAGE_IMMUTABLE;
 200         rbuffer->b.b.bind = bind;
 201         rbuffer->b.b.width0 = bytes;
 202         rbuffer->b.b.height0 = 1;
 203         rbuffer->b.b.depth0 = 1;
 204         rbuffer->b.b.array_size = 1;
 205         rbuffer->b.b.flags = 0;
 206         rbuffer->b.b.user_ptr = ptr;
 207         rbuffer->buf = NULL;
 208         return &rbuffer->b.b;
 209 }
 210
 211 void r600_upload_index_buffer(struct r600_context *rctx,
 212                               struct pipe_index_buffer *ib, unsigned count)
 213 {
 214         struct r600_resource *rbuffer = r600_resource(ib->buffer);
 215
 216         u_upload_data(rctx->uploader, 0, count * ib->index_size,
 217                       rbuffer->b.b.user_ptr, &ib->offset, &ib->buffer);
 218 }
 219
 220 void r600_upload_const_buffer(struct r600_context *rctx, struct r600_resource **rbuffer,
 221                              uint32_t *const_offset)
 222 {
 223         if ((*rbuffer)->b.b.user_ptr) {
 224                 uint8_t *ptr = (*rbuffer)->b.b.user_ptr;
 225                 unsigned size = (*rbuffer)->b.b.width0;
 226
 227                 *rbuffer = NULL;
 228
 229                 if (R600_BIG_ENDIAN) {
 230                         uint32_t *tmpPtr;
 231                         unsigned i;
 232
 233                         if (!(tmpPtr = malloc(size))) {
 234                                 R600_ERR("Failed to allocate BE swap buffer.\n");
 235                                 return;
 236                         }
 237
 238                         for (i = 0; i < size / 4; ++i) {
 239                                 tmpPtr[i] = bswap_32(((uint32_t *)ptr)[i]);
 240                         }
 241
 242                         u_upload_data(rctx->uploader, 0, size, tmpPtr, const_offset,
 243                                       (struct pipe_resource**)rbuffer);
 244
 245                         free(tmpPtr);
 246                 } else {
 247                         u_upload_data(rctx->uploader, 0, size, ptr, const_offset,
 248                                       (struct pipe_resource**)rbuffer);
 249                 }
 250         } else {
 251                 *const_offset = 0;
 252         }
 253 }