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  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.  
  28. #include "pipe/p_screen.h"
  29. #include "util/u_format.h"
  30. #include "util/u_math.h"
  31. #include "util/u_inlines.h"
  32. #include "util/u_memory.h"
  33. #include "util/u_upload_mgr.h"
  34.  
  35. #include "r600.h"
  36. #include "radeonsi_pipe.h"
  37.  
  38. static void r600_buffer_destroy(struct pipe_screen *screen,
  39.                                 struct pipe_resource *buf)
  40. {
  41.         struct si_resource *rbuffer = si_resource(buf);
  42.  
  43.         pb_reference(&rbuffer->buf, NULL);
  44.         FREE(rbuffer);
  45. }
  46.  
  47. static void *r600_buffer_transfer_map(struct pipe_context *ctx,
  48.                                       struct pipe_resource *resource,
  49.                                       unsigned level,
  50.                                       unsigned usage,
  51.                                       const struct pipe_box *box,
  52.                                       struct pipe_transfer **ptransfer)
  53. {
  54.         struct r600_context *rctx = (struct r600_context*)ctx;
  55.         struct pipe_transfer *transfer;
  56.         struct si_resource *rbuffer = si_resource(resource);
  57.         uint8_t *data;
  58.  
  59.         data = rctx->ws->buffer_map(rbuffer->cs_buf, rctx->cs, usage);
  60.         if (!data) {
  61.                 return NULL;
  62.         }
  63.  
  64.         transfer = util_slab_alloc(&rctx->pool_transfers);
  65.         transfer->resource = resource;
  66.         transfer->level = level;
  67.         transfer->usage = usage;
  68.         transfer->box = *box;
  69.         transfer->stride = 0;
  70.         transfer->layer_stride = 0;
  71.         *ptransfer = transfer;
  72.  
  73.         return (uint8_t*)data + transfer->box.x;
  74. }
  75.  
  76. static void r600_buffer_transfer_unmap(struct pipe_context *ctx,
  77.                                         struct pipe_transfer *transfer)
  78. {
  79.         struct r600_context *rctx = (struct r600_context*)ctx;
  80.         util_slab_free(&rctx->pool_transfers, transfer);
  81. }
  82.  
  83. static void r600_buffer_transfer_flush_region(struct pipe_context *pipe,
  84.                                                 struct pipe_transfer *transfer,
  85.                                                 const struct pipe_box *box)
  86. {
  87. }
  88.  
  89. static const struct u_resource_vtbl r600_buffer_vtbl =
  90. {
  91.         u_default_resource_get_handle,          /* get_handle */
  92.         r600_buffer_destroy,                    /* resource_destroy */
  93.         r600_buffer_transfer_map,               /* transfer_map */
  94.         r600_buffer_transfer_flush_region,      /* transfer_flush_region */
  95.         r600_buffer_transfer_unmap,             /* transfer_unmap */
  96.         NULL    /* transfer_inline_write */
  97. };
  98.  
  99. bool si_init_resource(struct r600_screen *rscreen,
  100.                         struct si_resource *res,
  101.                         unsigned size, unsigned alignment,
  102.                         boolean use_reusable_pool, unsigned usage)
  103. {
  104.         uint32_t initial_domain, domains;
  105.  
  106.         /* Staging resources particpate in transfers and blits only
  107.          * and are used for uploads and downloads from regular
  108.          * resources.  We generate them internally for some transfers.
  109.          */
  110.         if (usage == PIPE_USAGE_STAGING) {
  111.                 domains = RADEON_DOMAIN_GTT;
  112.                 initial_domain = RADEON_DOMAIN_GTT;
  113.         } else {
  114.                 domains = RADEON_DOMAIN_GTT | RADEON_DOMAIN_VRAM;
  115.  
  116.                 switch(usage) {
  117.                 case PIPE_USAGE_DYNAMIC:
  118.                 case PIPE_USAGE_STREAM:
  119.                 case PIPE_USAGE_STAGING:
  120.                         initial_domain = RADEON_DOMAIN_GTT;
  121.                         break;
  122.                 case PIPE_USAGE_DEFAULT:
  123.                 case PIPE_USAGE_STATIC:
  124.                 case PIPE_USAGE_IMMUTABLE:
  125.                 default:
  126.                         initial_domain = RADEON_DOMAIN_VRAM;
  127.                         break;
  128.                 }
  129.         }
  130.  
  131.         res->buf = rscreen->ws->buffer_create(rscreen->ws, size, alignment,
  132.                                               use_reusable_pool,
  133.                                               initial_domain);
  134.         if (!res->buf) {
  135.                 return false;
  136.         }
  137.  
  138.         res->cs_buf = rscreen->ws->buffer_get_cs_handle(res->buf);
  139.         res->domains = domains;
  140.         return true;
  141. }
  142.  
  143. struct pipe_resource *si_buffer_create(struct pipe_screen *screen,
  144.                                        const struct pipe_resource *templ)
  145. {
  146.         struct r600_screen *rscreen = (struct r600_screen*)screen;
  147.         struct si_resource *rbuffer;
  148.         /* XXX We probably want a different alignment for buffers and textures. */
  149.         unsigned alignment = 4096;
  150.  
  151.         rbuffer = MALLOC_STRUCT(si_resource);
  152.  
  153.         rbuffer->b.b = *templ;
  154.         pipe_reference_init(&rbuffer->b.b.reference, 1);
  155.         rbuffer->b.b.screen = screen;
  156.         rbuffer->b.vtbl = &r600_buffer_vtbl;
  157.  
  158.         if (!si_init_resource(rscreen, rbuffer, templ->width0, alignment, TRUE, templ->usage)) {
  159.                 FREE(rbuffer);
  160.                 return NULL;
  161.         }
  162.         return &rbuffer->b.b;
  163. }
  164.  
  165. void r600_upload_index_buffer(struct r600_context *rctx,
  166.                               struct pipe_index_buffer *ib, unsigned count)
  167. {
  168.         u_upload_data(rctx->uploader, 0, count * ib->index_size,
  169.                       ib->user_buffer, &ib->offset, &ib->buffer);
  170. }
  171.  
  172. void r600_upload_const_buffer(struct r600_context *rctx, struct si_resource **rbuffer,
  173.                         const uint8_t *ptr, unsigned size,
  174.                         uint32_t *const_offset)
  175. {
  176.         if (R600_BIG_ENDIAN) {
  177.                 uint32_t *tmpPtr;
  178.                 unsigned i;
  179.  
  180.                 if (!(tmpPtr = malloc(size))) {
  181.                         R600_ERR("Failed to allocate BE swap buffer.\n");
  182.                         return;
  183.                 }
  184.  
  185.                 for (i = 0; i < size / 4; ++i) {
  186.                         tmpPtr[i] = util_bswap32(((uint32_t *)ptr)[i]);
  187.                 }
  188.  
  189.                 u_upload_data(rctx->uploader, 0, size, tmpPtr, const_offset,
  190.                                 (struct pipe_resource**)rbuffer);
  191.  
  192.                 free(tmpPtr);
  193.         } else {
  194.                 u_upload_data(rctx->uploader, 0, size, ptr, const_offset,
  195.                                         (struct pipe_resource**)rbuffer);
  196.         }
  197. }
  198.