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 si_resource *rbuffer = si_resource(buf);
  44
  45         pb_reference(&rbuffer->buf, NULL);
  46         FREE(rbuffer);
  47 }
  48
  49 static void *r600_buffer_transfer_map(struct pipe_context *ctx,
  50                                       struct pipe_resource *resource,
  51                                       unsigned level,
  52                                       unsigned usage,
  53                                       const struct pipe_box *box,
  54                                       struct pipe_transfer **ptransfer)
  55 {
  56         struct r600_context *rctx = (struct r600_context*)ctx;
  57         struct pipe_transfer *transfer;
  58         struct si_resource *rbuffer = si_resource(resource);
  59         uint8_t *data;
  60
  61         data = rctx->ws->buffer_map(rbuffer->cs_buf, rctx->cs, usage);
  62         if (!data) {
  63                 return NULL;
  64         }
  65
  66         transfer = util_slab_alloc(&rctx->pool_transfers);
  67         transfer->resource = resource;
  68         transfer->level = level;
  69         transfer->usage = usage;
  70         transfer->box = *box;
  71         transfer->stride = 0;
  72         transfer->layer_stride = 0;
  73         transfer->data = NULL;
  74         *ptransfer = transfer;
  75
  76         return (uint8_t*)data + transfer->box.x;
  77 }
  78
  79 static void r600_buffer_transfer_unmap(struct pipe_context *ctx,
  80                                         struct pipe_transfer *transfer)
  81 {
  82         struct r600_context *rctx = (struct r600_context*)ctx;
  83         util_slab_free(&rctx->pool_transfers, transfer);
  84 }
  85
  86 static void r600_buffer_transfer_flush_region(struct pipe_context *pipe,
  87                                                 struct pipe_transfer *transfer,
  88                                                 const struct pipe_box *box)
  89 {
  90 }
  91
  92 static const struct u_resource_vtbl r600_buffer_vtbl =
  93 {
  94         u_default_resource_get_handle,          /* get_handle */
  95         r600_buffer_destroy,                    /* resource_destroy */
  96         r600_buffer_transfer_map,               /* transfer_map */
  97         r600_buffer_transfer_flush_region,      /* transfer_flush_region */
  98         r600_buffer_transfer_unmap,             /* transfer_unmap */
  99         NULL    /* transfer_inline_write */
 100 };
 101
 102 bool si_init_resource(struct r600_screen *rscreen,
 103                         struct si_resource *res,
 104                         unsigned size, unsigned alignment,
 105                         unsigned bind, unsigned usage)
 106 {
 107         uint32_t initial_domain, domains;
 108
 109         /* Staging resources particpate in transfers and blits only
 110          * and are used for uploads and downloads from regular
 111          * resources.  We generate them internally for some transfers.
 112          */
 113         if (usage == PIPE_USAGE_STAGING) {
 114                 domains = RADEON_DOMAIN_GTT;
 115                 initial_domain = RADEON_DOMAIN_GTT;
 116         } else {
 117                 domains = RADEON_DOMAIN_GTT | RADEON_DOMAIN_VRAM;
 118
 119                 switch(usage) {
 120                 case PIPE_USAGE_DYNAMIC:
 121                 case PIPE_USAGE_STREAM:
 122                 case PIPE_USAGE_STAGING:
 123                         initial_domain = RADEON_DOMAIN_GTT;
 124                         break;
 125                 case PIPE_USAGE_DEFAULT:
 126                 case PIPE_USAGE_STATIC:
 127                 case PIPE_USAGE_IMMUTABLE:
 128                 default:
 129                         initial_domain = RADEON_DOMAIN_VRAM;
 130                         break;
 131                 }
 132         }
 133
 134         res->buf = rscreen->ws->buffer_create(rscreen->ws, size, alignment, bind, initial_domain);
 135         if (!res->buf) {
 136                 return false;
 137         }
 138
 139         res->cs_buf = rscreen->ws->buffer_get_cs_handle(res->buf);
 140         res->domains = domains;
 141         return true;
 142 }
 143
 144 struct pipe_resource *si_buffer_create(struct pipe_screen *screen,
 145                                        const struct pipe_resource *templ)
 146 {
 147         struct r600_screen *rscreen = (struct r600_screen*)screen;
 148         struct si_resource *rbuffer;
 149         /* XXX We probably want a different alignment for buffers and textures. */
 150         unsigned alignment = 4096;
 151
 152         rbuffer = MALLOC_STRUCT(si_resource);
 153
 154         rbuffer->b.b = *templ;
 155         pipe_reference_init(&rbuffer->b.b.reference, 1);
 156         rbuffer->b.b.screen = screen;
 157         rbuffer->b.vtbl = &r600_buffer_vtbl;
 158
 159         if (!si_init_resource(rscreen, rbuffer, templ->width0, alignment, templ->bind, templ->usage)) {
 160                 FREE(rbuffer);
 161                 return NULL;
 162         }
 163         return &rbuffer->b.b;
 164 }
 165
 166 void r600_upload_index_buffer(struct r600_context *rctx,
 167                               struct pipe_index_buffer *ib, unsigned count)
 168 {
 169         u_upload_data(rctx->uploader, 0, count * ib->index_size,
 170                       ib->user_buffer, &ib->offset, &ib->buffer);
 171 }
 172
 173 void r600_upload_const_buffer(struct r600_context *rctx, struct si_resource **rbuffer,
 174                               const uint8_t *ptr, unsigned size,
 175                               uint32_t *const_offset)
 176 {
 177         *rbuffer = NULL;
 178
 179         if (R600_BIG_ENDIAN) {
 180                 uint32_t *tmpPtr;
 181                 unsigned i;
 182
 183                 if (!(tmpPtr = malloc(size))) {
 184                         R600_ERR("Failed to allocate BE swap buffer.\n");
 185                         return;
 186                 }
 187
 188                 for (i = 0; i < size / 4; ++i) {
 189                         tmpPtr[i] = bswap_32(((uint32_t *)ptr)[i]);
 190                 }
 191
 192                 u_upload_data(rctx->uploader, 0, size, tmpPtr, const_offset,
 193                               (struct pipe_resource**)rbuffer);
 194
 195                 free(tmpPtr);
 196         } else {
 197                 u_upload_data(rctx->uploader, 0, size, ptr, const_offset,
 198                               (struct pipe_resource**)rbuffer);
 199         }
 200 }