src/gallium/drivers/r600/r600_state_common.c

   1 /*
   2  * Copyright 2010 Red Hat Inc.
   3  *           2010 Jerome Glisse
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * on the rights to use, copy, modify, merge, publish, distribute, sub
   9  * license, and/or sell copies of the Software, and to permit persons to whom
  10  * the Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  20  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  21  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  22  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors: Dave Airlie <airlied@redhat.com>
  25  *          Jerome Glisse <jglisse@redhat.com>
  26  */
  27 #include <util/u_memory.h>
  28 #include <util/u_format.h>
  29 #include <pipebuffer/pb_buffer.h>
  30 #include "pipe/p_shader_tokens.h"
  31 #include "r600_pipe.h"
  32 #include "r600d.h"
  33
  34 /* common state between evergreen and r600 */
  35 void r600_bind_blend_state(struct pipe_context *ctx, void *state)
  36 {
  37         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
  38         struct r600_pipe_blend *blend = (struct r600_pipe_blend *)state;
  39         struct r600_pipe_state *rstate;
  40
  41         if (state == NULL)
  42                 return;
  43         rstate = &blend->rstate;
  44         rctx->states[rstate->id] = rstate;
  45         rctx->cb_target_mask = blend->cb_target_mask;
  46         r600_context_pipe_state_set(&rctx->ctx, rstate);
  47 }
  48
  49 void r600_bind_rs_state(struct pipe_context *ctx, void *state)
  50 {
  51         struct r600_pipe_rasterizer *rs = (struct r600_pipe_rasterizer *)state;
  52         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
  53
  54         if (state == NULL)
  55                 return;
  56
  57         rctx->flatshade = rs->flatshade;
  58         rctx->sprite_coord_enable = rs->sprite_coord_enable;
  59         rctx->rasterizer = rs;
  60
  61         rctx->states[rs->rstate.id] = &rs->rstate;
  62         r600_context_pipe_state_set(&rctx->ctx, &rs->rstate);
  63
  64         if (rctx->family >= CHIP_CEDAR) {
  65                 evergreen_polygon_offset_update(rctx);
  66         } else {
  67                 r600_polygon_offset_update(rctx);
  68         }
  69 }
  70
  71 void r600_delete_rs_state(struct pipe_context *ctx, void *state)
  72 {
  73         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
  74         struct r600_pipe_rasterizer *rs = (struct r600_pipe_rasterizer *)state;
  75
  76         if (rctx->rasterizer == rs) {
  77                 rctx->rasterizer = NULL;
  78         }
  79         if (rctx->states[rs->rstate.id] == &rs->rstate) {
  80                 rctx->states[rs->rstate.id] = NULL;
  81         }
  82         free(rs);
  83 }
  84
  85 void r600_sampler_view_destroy(struct pipe_context *ctx,
  86                                struct pipe_sampler_view *state)
  87 {
  88         struct r600_pipe_sampler_view *resource = (struct r600_pipe_sampler_view *)state;
  89
  90         pipe_resource_reference(&state->texture, NULL);
  91         FREE(resource);
  92 }
  93
  94 void r600_bind_state(struct pipe_context *ctx, void *state)
  95 {
  96         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
  97         struct r600_pipe_state *rstate = (struct r600_pipe_state *)state;
  98
  99         if (state == NULL)
 100                 return;
 101         rctx->states[rstate->id] = rstate;
 102         r600_context_pipe_state_set(&rctx->ctx, rstate);
 103 }
 104
 105 void r600_delete_state(struct pipe_context *ctx, void *state)
 106 {
 107         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 108         struct r600_pipe_state *rstate = (struct r600_pipe_state *)state;
 109
 110         if (rctx->states[rstate->id] == rstate) {
 111                 rctx->states[rstate->id] = NULL;
 112         }
 113         for (int i = 0; i < rstate->nregs; i++) {
 114                 r600_bo_reference(rctx->radeon, &rstate->regs[i].bo, NULL);
 115         }
 116         free(rstate);
 117 }
 118
 119 void r600_bind_vertex_elements(struct pipe_context *ctx, void *state)
 120 {
 121         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 122         struct r600_vertex_element *v = (struct r600_vertex_element*)state;
 123
 124         rctx->vertex_elements = v;
 125         if (v) {
 126                 rctx->states[v->rstate.id] = &v->rstate;
 127                 r600_context_pipe_state_set(&rctx->ctx, &v->rstate);
 128         }
 129 }
 130
 131 void r600_delete_vertex_element(struct pipe_context *ctx, void *state)
 132 {
 133         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 134         struct r600_vertex_element *v = (struct r600_vertex_element*)state;
 135
 136         if (rctx->states[v->rstate.id] == &v->rstate) {
 137                 rctx->states[v->rstate.id] = NULL;
 138         }
 139         if (rctx->vertex_elements == state)
 140                 rctx->vertex_elements = NULL;
 141
 142         r600_bo_reference(rctx->radeon, &v->fetch_shader, NULL);
 143         FREE(state);
 144 }
 145
 146
 147 void r600_set_index_buffer(struct pipe_context *ctx,
 148                            const struct pipe_index_buffer *ib)
 149 {
 150         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 151
 152         if (ib) {
 153                 pipe_resource_reference(&rctx->index_buffer.buffer, ib->buffer);
 154                 memcpy(&rctx->index_buffer, ib, sizeof(rctx->index_buffer));
 155         } else {
 156                 pipe_resource_reference(&rctx->index_buffer.buffer, NULL);
 157                 memset(&rctx->index_buffer, 0, sizeof(rctx->index_buffer));
 158         }
 159
 160         /* TODO make this more like a state */
 161 }
 162
 163 void r600_set_vertex_buffers(struct pipe_context *ctx, unsigned count,
 164                              const struct pipe_vertex_buffer *buffers)
 165 {
 166         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 167         struct pipe_vertex_buffer *vbo;
 168         unsigned max_index = ~0;
 169         int i;
 170
 171         for (i = 0; i < count; i++) {
 172                 vbo = (struct pipe_vertex_buffer*)&buffers[i];
 173
 174                 pipe_resource_reference(&rctx->vertex_buffer[i].buffer, vbo->buffer);
 175                 pipe_resource_reference(&rctx->real_vertex_buffer[i], NULL);
 176
 177                 if (!vbo->buffer) {
 178                         /* Zero states. */
 179                         if (rctx->family >= CHIP_CEDAR) {
 180                                 evergreen_context_pipe_state_set_fs_resource(&rctx->ctx, NULL, i);
 181                         } else {
 182                                 r600_context_pipe_state_set_fs_resource(&rctx->ctx, NULL, i);
 183                         }
 184                         continue;
 185                 }
 186
 187                 if (r600_is_user_buffer(vbo->buffer)) {
 188                         rctx->any_user_vbs = TRUE;
 189                         continue;
 190                 }
 191
 192                 pipe_resource_reference(&rctx->real_vertex_buffer[i], vbo->buffer);
 193
 194                 /* The stride of zero means we will be fetching only the first
 195                  * vertex, so don't care about max_index. */
 196                 if (!vbo->stride) {
 197                         continue;
 198                 }
 199
 200                 /* Update the maximum index. */
 201                 {
 202                     unsigned vbo_max_index =
 203                           (vbo->buffer->width0 - vbo->buffer_offset) / vbo->stride;
 204                     max_index = MIN2(max_index, vbo_max_index);
 205                 }
 206         }
 207
 208         for (; i < rctx->nreal_vertex_buffers; i++) {
 209                 pipe_resource_reference(&rctx->vertex_buffer[i].buffer, NULL);
 210                 pipe_resource_reference(&rctx->real_vertex_buffer[i], NULL);
 211
 212                 /* Zero states. */
 213                 if (rctx->family >= CHIP_CEDAR) {
 214                         evergreen_context_pipe_state_set_fs_resource(&rctx->ctx, NULL, i);
 215                 } else {
 216                         r600_context_pipe_state_set_fs_resource(&rctx->ctx, NULL, i);
 217                 }
 218         }
 219
 220         memcpy(rctx->vertex_buffer, buffers, sizeof(struct pipe_vertex_buffer) * count);
 221
 222         rctx->nvertex_buffers = count;
 223         rctx->nreal_vertex_buffers = count;
 224         rctx->vb_max_index = max_index;
 225 }
 226
 227
 228 #define FORMAT_REPLACE(what, withwhat) \
 229         case PIPE_FORMAT_##what: *format = PIPE_FORMAT_##withwhat; break
 230
 231 void *r600_create_vertex_elements(struct pipe_context *ctx,
 232                                   unsigned count,
 233                                   const struct pipe_vertex_element *elements)
 234 {
 235         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 236         struct r600_vertex_element *v = CALLOC_STRUCT(r600_vertex_element);
 237         enum pipe_format *format;
 238         int i;
 239
 240         assert(count < 32);
 241         if (!v)
 242                 return NULL;
 243
 244         v->count = count;
 245         memcpy(v->elements, elements, count * sizeof(struct pipe_vertex_element));
 246
 247         for (i = 0; i < count; i++) {
 248                 v->hw_format[i] = v->elements[i].src_format;
 249                 format = &v->hw_format[i];
 250
 251                 switch (*format) {
 252                 FORMAT_REPLACE(R64_FLOAT,           R32_FLOAT);
 253                 FORMAT_REPLACE(R64G64_FLOAT,        R32G32_FLOAT);
 254                 FORMAT_REPLACE(R64G64B64_FLOAT,     R32G32B32_FLOAT);
 255                 FORMAT_REPLACE(R64G64B64A64_FLOAT,  R32G32B32A32_FLOAT);
 256
 257                 /* r600 doesn't seem to support 32_*SCALED, these formats
 258                  * aren't in D3D10 either. */
 259                 FORMAT_REPLACE(R32_UNORM,           R32_FLOAT);
 260                 FORMAT_REPLACE(R32G32_UNORM,        R32G32_FLOAT);
 261                 FORMAT_REPLACE(R32G32B32_UNORM,     R32G32B32_FLOAT);
 262                 FORMAT_REPLACE(R32G32B32A32_UNORM,  R32G32B32A32_FLOAT);
 263
 264                 FORMAT_REPLACE(R32_USCALED,         R32_FLOAT);
 265                 FORMAT_REPLACE(R32G32_USCALED,      R32G32_FLOAT);
 266                 FORMAT_REPLACE(R32G32B32_USCALED,   R32G32B32_FLOAT);
 267                 FORMAT_REPLACE(R32G32B32A32_USCALED,R32G32B32A32_FLOAT);
 268
 269                 FORMAT_REPLACE(R32_SNORM,           R32_FLOAT);
 270                 FORMAT_REPLACE(R32G32_SNORM,        R32G32_FLOAT);
 271                 FORMAT_REPLACE(R32G32B32_SNORM,     R32G32B32_FLOAT);
 272                 FORMAT_REPLACE(R32G32B32A32_SNORM,  R32G32B32A32_FLOAT);
 273
 274                 FORMAT_REPLACE(R32_SSCALED,         R32_FLOAT);
 275                 FORMAT_REPLACE(R32G32_SSCALED,      R32G32_FLOAT);
 276                 FORMAT_REPLACE(R32G32B32_SSCALED,   R32G32B32_FLOAT);
 277                 FORMAT_REPLACE(R32G32B32A32_SSCALED,R32G32B32A32_FLOAT);
 278                 default:;
 279                 }
 280                 v->incompatible_layout =
 281                         v->incompatible_layout ||
 282                         v->elements[i].src_format != v->hw_format[i];
 283
 284                 v->hw_format_size[i] = align(util_format_get_blocksize(v->hw_format[i]), 4);
 285         }
 286
 287         if (r600_vertex_elements_build_fetch_shader(rctx, v)) {
 288                 FREE(v);
 289                 return NULL;
 290         }
 291
 292         return v;
 293 }
 294
 295 void *r600_create_shader_state(struct pipe_context *ctx,
 296                                const struct pipe_shader_state *state)
 297 {
 298         struct r600_pipe_shader *shader =  CALLOC_STRUCT(r600_pipe_shader);
 299         int r;
 300
 301         r =  r600_pipe_shader_create(ctx, shader, state->tokens);
 302         if (r) {
 303                 return NULL;
 304         }
 305         return shader;
 306 }
 307
 308 void r600_bind_ps_shader(struct pipe_context *ctx, void *state)
 309 {
 310         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 311
 312         /* TODO delete old shader */
 313         rctx->ps_shader = (struct r600_pipe_shader *)state;
 314         if (state) {
 315                 r600_context_pipe_state_set(&rctx->ctx, &rctx->ps_shader->rstate);
 316         }
 317 }
 318
 319 void r600_bind_vs_shader(struct pipe_context *ctx, void *state)
 320 {
 321         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 322
 323         /* TODO delete old shader */
 324         rctx->vs_shader = (struct r600_pipe_shader *)state;
 325         if (state) {
 326                 r600_context_pipe_state_set(&rctx->ctx, &rctx->vs_shader->rstate);
 327         }
 328 }
 329
 330 void r600_delete_ps_shader(struct pipe_context *ctx, void *state)
 331 {
 332         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 333         struct r600_pipe_shader *shader = (struct r600_pipe_shader *)state;
 334
 335         if (rctx->ps_shader == shader) {
 336                 rctx->ps_shader = NULL;
 337         }
 338
 339         r600_pipe_shader_destroy(ctx, shader);
 340         free(shader);
 341 }
 342
 343 void r600_delete_vs_shader(struct pipe_context *ctx, void *state)
 344 {
 345         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 346         struct r600_pipe_shader *shader = (struct r600_pipe_shader *)state;
 347
 348         if (rctx->vs_shader == shader) {
 349                 rctx->vs_shader = NULL;
 350         }
 351
 352         r600_pipe_shader_destroy(ctx, shader);
 353         free(shader);
 354 }
 355
 356 /* FIXME optimize away spi update when it's not needed */
 357 void r600_spi_update(struct r600_pipe_context *rctx)
 358 {
 359         struct r600_pipe_shader *shader = rctx->ps_shader;
 360         struct r600_pipe_state rstate;
 361         struct r600_shader *rshader = &shader->shader;
 362         unsigned i, tmp;
 363
 364         rstate.nregs = 0;
 365         for (i = 0; i < rshader->ninput; i++) {
 366                 tmp = S_028644_SEMANTIC(r600_find_vs_semantic_index(&rctx->vs_shader->shader, rshader, i));
 367
 368                 if (rshader->input[i].name == TGSI_SEMANTIC_COLOR ||
 369                     rshader->input[i].name == TGSI_SEMANTIC_BCOLOR ||
 370                     rshader->input[i].name == TGSI_SEMANTIC_POSITION) {
 371                         tmp |= S_028644_FLAT_SHADE(rctx->flatshade);
 372                 }
 373
 374                 if (rshader->input[i].name == TGSI_SEMANTIC_GENERIC &&
 375                     rctx->sprite_coord_enable & (1 << rshader->input[i].sid)) {
 376                         tmp |= S_028644_PT_SPRITE_TEX(1);
 377                 }
 378
 379                 if (rctx->family < CHIP_CEDAR) {
 380                     if (rshader->input[i].centroid)
 381                             tmp |= S_028644_SEL_CENTROID(1);
 382
 383                     if (rshader->input[i].interpolate == TGSI_INTERPOLATE_LINEAR)
 384                             tmp |= S_028644_SEL_LINEAR(1);
 385                 }
 386
 387                 r600_pipe_state_add_reg(&rstate, R_028644_SPI_PS_INPUT_CNTL_0 + i * 4, tmp, 0xFFFFFFFF, NULL);
 388         }
 389         r600_context_pipe_state_set(&rctx->ctx, &rstate);
 390 }
 391
 392 void r600_set_constant_buffer(struct pipe_context *ctx, uint shader, uint index,
 393                               struct pipe_resource *buffer)
 394 {
 395         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 396         struct r600_resource_buffer *rbuffer = r600_buffer(buffer);
 397         uint32_t offset;
 398
 399         /* Note that the state tracker can unbind constant buffers by
 400          * passing NULL here.
 401          */
 402         if (buffer == NULL) {
 403                 return;
 404         }
 405
 406         r600_upload_const_buffer(rctx, &rbuffer, &offset);
 407
 408         switch (shader) {
 409         case PIPE_SHADER_VERTEX:
 410                 rctx->vs_const_buffer.nregs = 0;
 411                 r600_pipe_state_add_reg(&rctx->vs_const_buffer,
 412                                         R_028180_ALU_CONST_BUFFER_SIZE_VS_0,
 413                                         ALIGN_DIVUP(buffer->width0 >> 4, 16),
 414                                         0xFFFFFFFF, NULL);
 415                 r600_pipe_state_add_reg(&rctx->vs_const_buffer,
 416                                         R_028980_ALU_CONST_CACHE_VS_0,
 417                                         (r600_bo_offset(rbuffer->r.bo) + offset) >> 8, 0xFFFFFFFF, rbuffer->r.bo);
 418                 r600_context_pipe_state_set(&rctx->ctx, &rctx->vs_const_buffer);
 419                 break;
 420         case PIPE_SHADER_FRAGMENT:
 421                 rctx->ps_const_buffer.nregs = 0;
 422                 r600_pipe_state_add_reg(&rctx->ps_const_buffer,
 423                                         R_028140_ALU_CONST_BUFFER_SIZE_PS_0,
 424                                         ALIGN_DIVUP(buffer->width0 >> 4, 16),
 425                                         0xFFFFFFFF, NULL);
 426                 r600_pipe_state_add_reg(&rctx->ps_const_buffer,
 427                                         R_028940_ALU_CONST_CACHE_PS_0,
 428                                         (r600_bo_offset(rbuffer->r.bo) + offset) >> 8, 0xFFFFFFFF, rbuffer->r.bo);
 429                 r600_context_pipe_state_set(&rctx->ctx, &rctx->ps_const_buffer);
 430                 break;
 431         default:
 432                 R600_ERR("unsupported %d\n", shader);
 433                 return;
 434         }
 435
 436         if (!rbuffer->user_buffer)
 437                 pipe_resource_reference((struct pipe_resource**)&rbuffer, NULL);
 438 }
 439
 440 static void r600_vertex_buffer_update(struct r600_pipe_context *rctx)
 441 {
 442         struct r600_pipe_state *rstate;
 443         struct r600_resource *rbuffer;
 444         struct pipe_vertex_buffer *vertex_buffer;
 445         unsigned i, offset;
 446
 447         if (rctx->vertex_elements->vbuffer_need_offset) {
 448                 /* one resource per vertex elements */
 449                 rctx->nvs_resource = rctx->vertex_elements->count;
 450         } else {
 451                 /* bind vertex buffer once */
 452                 rctx->nvs_resource = rctx->nreal_vertex_buffers;
 453         }
 454
 455         for (i = 0 ; i < rctx->nvs_resource; i++) {
 456                 rstate = &rctx->vs_resource[i];
 457                 rstate->id = R600_PIPE_STATE_RESOURCE;
 458                 rstate->nregs = 0;
 459
 460                 if (rctx->vertex_elements->vbuffer_need_offset) {
 461                         /* one resource per vertex elements */
 462                         unsigned vbuffer_index;
 463                         vbuffer_index = rctx->vertex_elements->elements[i].vertex_buffer_index;
 464                         vertex_buffer = &rctx->vertex_buffer[vbuffer_index];
 465                         rbuffer = (struct r600_resource*)rctx->real_vertex_buffer[vbuffer_index];
 466                         offset = rctx->vertex_elements->vbuffer_offset[i];
 467                 } else {
 468                         /* bind vertex buffer once */
 469                         vertex_buffer = &rctx->vertex_buffer[i];
 470                         rbuffer = (struct r600_resource*)rctx->real_vertex_buffer[i];
 471                         offset = 0;
 472                 }
 473                 if (vertex_buffer == NULL || rbuffer == NULL)
 474                         continue;
 475                 offset += vertex_buffer->buffer_offset + r600_bo_offset(rbuffer->bo);
 476
 477                 if (rctx->family >= CHIP_CEDAR) {
 478                         evergreen_pipe_add_vertex_attrib(rctx, rstate, i,
 479                                                          rbuffer, offset,
 480                                                          vertex_buffer->stride);
 481                 } else {
 482                         r600_pipe_add_vertex_attrib(rctx, rstate, i,
 483                                                     rbuffer, offset,
 484                                                     vertex_buffer->stride);
 485                 }
 486         }
 487 }
 488
 489 void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *info)
 490 {
 491         struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
 492         struct r600_resource *rbuffer;
 493         u32 vgt_dma_index_type, vgt_draw_initiator, mask;
 494         struct r600_draw rdraw;
 495         struct r600_pipe_state vgt;
 496         struct r600_drawl draw = {};
 497         unsigned prim;
 498
 499         if (rctx->vertex_elements->incompatible_layout) {
 500                 r600_begin_vertex_translate(rctx);
 501         }
 502
 503         if (rctx->any_user_vbs) {
 504                 r600_upload_user_buffers(rctx, info->min_index, info->max_index);
 505         }
 506
 507         r600_vertex_buffer_update(rctx);
 508
 509         draw.info = *info;
 510         draw.ctx = ctx;
 511         if (info->indexed && rctx->index_buffer.buffer) {
 512                 draw.info.start += rctx->index_buffer.offset / rctx->index_buffer.index_size;
 513
 514                 r600_translate_index_buffer(rctx, &rctx->index_buffer.buffer,
 515                                             &rctx->index_buffer.index_size,
 516                                             &draw.info.start,
 517                                             info->count);
 518
 519                 draw.index_size = rctx->index_buffer.index_size;
 520                 pipe_resource_reference(&draw.index_buffer, rctx->index_buffer.buffer);
 521                 draw.index_buffer_offset = draw.info.start * draw.index_size;
 522                 draw.info.start = 0;
 523
 524                 if (r600_is_user_buffer(draw.index_buffer)) {
 525                         r600_upload_index_buffer(rctx, &draw);
 526                 }
 527         } else {
 528                 draw.info.index_bias = info->start;
 529         }
 530
 531         switch (draw.index_size) {
 532         case 2:
 533                 vgt_draw_initiator = 0;
 534                 vgt_dma_index_type = 0;
 535                 break;
 536         case 4:
 537                 vgt_draw_initiator = 0;
 538                 vgt_dma_index_type = 1;
 539                 break;
 540         case 0:
 541                 vgt_draw_initiator = 2;
 542                 vgt_dma_index_type = 0;
 543                 break;
 544         default:
 545                 R600_ERR("unsupported index size %d\n", draw.index_size);
 546                 return;
 547         }
 548         if (r600_conv_pipe_prim(draw.info.mode, &prim))
 549                 return;
 550         if (unlikely(rctx->ps_shader == NULL)) {
 551                 R600_ERR("missing vertex shader\n");
 552                 return;
 553         }
 554         if (unlikely(rctx->vs_shader == NULL)) {
 555                 R600_ERR("missing vertex shader\n");
 556                 return;
 557         }
 558         /* there should be enough input */
 559         if (rctx->vertex_elements->count < rctx->vs_shader->shader.bc.nresource) {
 560                 R600_ERR("%d resources provided, expecting %d\n",
 561                         rctx->vertex_elements->count, rctx->vs_shader->shader.bc.nresource);
 562                 return;
 563         }
 564
 565         r600_spi_update(rctx);
 566
 567         mask = 0;
 568         for (int i = 0; i < rctx->framebuffer.nr_cbufs; i++) {
 569                 mask |= (0xF << (i * 4));
 570         }
 571
 572         vgt.id = R600_PIPE_STATE_VGT;
 573         vgt.nregs = 0;
 574         r600_pipe_state_add_reg(&vgt, R_008958_VGT_PRIMITIVE_TYPE, prim, 0xFFFFFFFF, NULL);
 575         r600_pipe_state_add_reg(&vgt, R_028408_VGT_INDX_OFFSET, draw.info.index_bias, 0xFFFFFFFF, NULL);
 576         r600_pipe_state_add_reg(&vgt, R_028400_VGT_MAX_VTX_INDX, draw.info.max_index, 0xFFFFFFFF, NULL);
 577         r600_pipe_state_add_reg(&vgt, R_028404_VGT_MIN_VTX_INDX, draw.info.min_index, 0xFFFFFFFF, NULL);
 578         r600_pipe_state_add_reg(&vgt, R_028238_CB_TARGET_MASK, rctx->cb_target_mask & mask, 0xFFFFFFFF, NULL);
 579         r600_pipe_state_add_reg(&vgt, R_03CFF0_SQ_VTX_BASE_VTX_LOC, 0, 0xFFFFFFFF, NULL);
 580         r600_pipe_state_add_reg(&vgt, R_03CFF4_SQ_VTX_START_INST_LOC, 0, 0xFFFFFFFF, NULL);
 581         r600_context_pipe_state_set(&rctx->ctx, &vgt);
 582
 583         rdraw.vgt_num_indices = draw.info.count;
 584         rdraw.vgt_num_instances = 1;
 585         rdraw.vgt_index_type = vgt_dma_index_type;
 586         rdraw.vgt_draw_initiator = vgt_draw_initiator;
 587         rdraw.indices = NULL;
 588         if (draw.index_buffer) {
 589                 rbuffer = (struct r600_resource*)draw.index_buffer;
 590                 rdraw.indices = rbuffer->bo;
 591                 rdraw.indices_bo_offset = draw.index_buffer_offset;
 592         }
 593
 594         if (rctx->family >= CHIP_CEDAR) {
 595                 evergreen_context_draw(&rctx->ctx, &rdraw);
 596         } else {
 597                 r600_context_draw(&rctx->ctx, &rdraw);
 598         }
 599
 600         pipe_resource_reference(&draw.index_buffer, NULL);
 601
 602         /* delete previous translated vertex elements */
 603         if (rctx->tran.new_velems) {
 604                 r600_end_vertex_translate(rctx);
 605         }
 606 }