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 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 si_resource *rbuffer = si_resource(transfer->resource);
  76         struct r600_context *rctx = (struct r600_context*)pipe;
  77         uint8_t *data;
  78
  79         data = rctx->ws->buffer_map(rbuffer->cs_buf, rctx->cs, transfer->usage);
  80         if (!data)
  81                 return NULL;
  82
  83         return (uint8_t*)data + transfer->box.x;
  84 }
  85
  86 static void r600_buffer_transfer_unmap(struct pipe_context *pipe,
  87                                         struct pipe_transfer *transfer)
  88 {
  89         /* no-op */
  90 }
  91
  92 static void r600_buffer_transfer_flush_region(struct pipe_context *pipe,
  93                                                 struct pipe_transfer *transfer,
  94                                                 const struct pipe_box *box)
  95 {
  96 }
  97
  98 static void r600_transfer_destroy(struct pipe_context *ctx,
  99                                   struct pipe_transfer *transfer)
 100 {
 101         struct r600_context *rctx = (struct r600_context*)ctx;
 102         util_slab_free(&rctx->pool_transfers, transfer);
 103 }
 104
 105 static const struct u_resource_vtbl r600_buffer_vtbl =
 106 {
 107         u_default_resource_get_handle,          /* get_handle */
 108         r600_buffer_destroy,                    /* resource_destroy */
 109         r600_get_transfer,                      /* get_transfer */
 110         r600_transfer_destroy,                  /* transfer_destroy */
 111         r600_buffer_transfer_map,               /* transfer_map */
 112         r600_buffer_transfer_flush_region,      /* transfer_flush_region */
 113         r600_buffer_transfer_unmap,             /* transfer_unmap */
 114         NULL    /* transfer_inline_write */
 115 };
 116
 117 bool si_init_resource(struct r600_screen *rscreen,
 118                         struct si_resource *res,
 119                         unsigned size, unsigned alignment,
 120                         unsigned bind, unsigned usage)
 121 {
 122         uint32_t initial_domain, domains;
 123
 124         /* Staging resources particpate in transfers and blits only
 125          * and are used for uploads and downloads from regular
 126          * resources.  We generate them internally for some transfers.
 127          */
 128         if (usage == PIPE_USAGE_STAGING) {
 129                 domains = RADEON_DOMAIN_GTT;
 130                 initial_domain = RADEON_DOMAIN_GTT;
 131         } else {
 132                 domains = RADEON_DOMAIN_GTT | RADEON_DOMAIN_VRAM;
 133
 134                 switch(usage) {
 135                 case PIPE_USAGE_DYNAMIC:
 136                 case PIPE_USAGE_STREAM:
 137                 case PIPE_USAGE_STAGING:
 138                         initial_domain = RADEON_DOMAIN_GTT;
 139                         break;
 140                 case PIPE_USAGE_DEFAULT:
 141                 case PIPE_USAGE_STATIC:
 142                 case PIPE_USAGE_IMMUTABLE:
 143                 default:
 144                         initial_domain = RADEON_DOMAIN_VRAM;
 145                         break;
 146                 }
 147         }
 148
 149         res->buf = rscreen->ws->buffer_create(rscreen->ws, size, alignment, bind, initial_domain);
 150         if (!res->buf) {
 151                 return false;
 152         }
 153
 154         res->cs_buf = rscreen->ws->buffer_get_cs_handle(res->buf);
 155         res->domains = domains;
 156         return true;
 157 }
 158
 159 struct pipe_resource *si_buffer_create(struct pipe_screen *screen,
 160                                        const struct pipe_resource *templ)
 161 {
 162         struct r600_screen *rscreen = (struct r600_screen*)screen;
 163         struct si_resource *rbuffer;
 164         /* XXX We probably want a different alignment for buffers and textures. */
 165         unsigned alignment = 4096;
 166
 167         rbuffer = MALLOC_STRUCT(si_resource);
 168
 169         rbuffer->b.b = *templ;
 170         pipe_reference_init(&rbuffer->b.b.reference, 1);
 171         rbuffer->b.b.screen = screen;
 172         rbuffer->b.vtbl = &r600_buffer_vtbl;
 173
 174         if (!si_init_resource(rscreen, rbuffer, templ->width0, alignment, templ->bind, templ->usage)) {
 175                 FREE(rbuffer);
 176                 return NULL;
 177         }
 178         return &rbuffer->b.b;
 179 }
 180
 181 void r600_upload_index_buffer(struct r600_context *rctx,
 182                               struct pipe_index_buffer *ib, unsigned count)
 183 {
 184         u_upload_data(rctx->uploader, 0, count * ib->index_size,
 185                       ib->user_buffer, &ib->offset, &ib->buffer);
 186 }
 187
 188 void r600_upload_const_buffer(struct r600_context *rctx, struct si_resource **rbuffer,
 189                               const uint8_t *ptr, unsigned size,
 190                               uint32_t *const_offset)
 191 {
 192         *rbuffer = NULL;
 193
 194         if (R600_BIG_ENDIAN) {
 195                 uint32_t *tmpPtr;
 196                 unsigned i;
 197
 198                 if (!(tmpPtr = malloc(size))) {
 199                         R600_ERR("Failed to allocate BE swap buffer.\n");
 200                         return;
 201                 }
 202
 203                 for (i = 0; i < size / 4; ++i) {
 204                         tmpPtr[i] = bswap_32(((uint32_t *)ptr)[i]);
 205                 }
 206
 207                 u_upload_data(rctx->uploader, 0, size, tmpPtr, const_offset,
 208                               (struct pipe_resource**)rbuffer);
 209
 210                 free(tmpPtr);
 211         } else {
 212                 u_upload_data(rctx->uploader, 0, size, ptr, const_offset,
 213                               (struct pipe_resource**)rbuffer);
 214         }
 215 }