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
  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 }