1 /* 2 * Copyright 2010 Christoph Bumiller 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 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 */ 22 23 #include "pipe/p_context.h" 24 #include "pipe/p_state.h" 25 #include "util/u_inlines.h" 26 #include "util/u_format.h" 27 #include "translate/translate.h" 28 29 #include "nv50/nv50_context.h" 30 #include "nv50/nv50_query_hw.h" 31 #include "nv50/nv50_resource.h" 32 33 #include "nv50/nv50_3d.xml.h" 34 35 void 36 nv50_vertex_state_delete(struct pipe_context *pipe, 37 void *hwcso) 38 { 39 struct nv50_vertex_stateobj *so = hwcso; 40 41 if (so->translate) 42 so->translate->release(so->translate); 43 FREE(hwcso); 44 } 45 46 void * 47 nv50_vertex_state_create(struct pipe_context *pipe, 48 unsigned num_elements, 49 const struct pipe_vertex_element *elements) 50 { 51 struct nv50_vertex_stateobj *so; 52 struct translate_key transkey; 53 unsigned i; 54 55 so = MALLOC(sizeof(*so) + 56 num_elements * sizeof(struct nv50_vertex_element)); 57 if (!so) 58 return NULL; 59 so->num_elements = num_elements; 60 so->instance_elts = 0; 61 so->instance_bufs = 0; 62 so->need_conversion = false; 63 64 memset(so->vb_access_size, 0, sizeof(so->vb_access_size)); 65 66 for (i = 0; i < PIPE_MAX_ATTRIBS; ++i) 67 so->min_instance_div[i] = 0xffffffff; 68 69 transkey.nr_elements = 0; 70 transkey.output_stride = 0; 71 72 for (i = 0; i < num_elements; ++i) { 73 const struct pipe_vertex_element *ve = &elements[i]; 74 const unsigned vbi = ve->vertex_buffer_index; 75 unsigned size; 76 enum pipe_format fmt = ve->src_format; 77 78 so->element[i].pipe = elements[i]; 79 so->element[i].state = nv50_vertex_format[fmt].vtx; 80 81 if (!so->element[i].state) { 82 switch (util_format_get_nr_components(fmt)) { 83 case 1: fmt = PIPE_FORMAT_R32_FLOAT; break; 84 case 2: fmt = PIPE_FORMAT_R32G32_FLOAT; break; 85 case 3: fmt = PIPE_FORMAT_R32G32B32_FLOAT; break; 86 case 4: fmt = PIPE_FORMAT_R32G32B32A32_FLOAT; break; 87 default: 88 assert(0); 89 FREE(so); 90 return NULL; 91 } 92 so->element[i].state = nv50_vertex_format[fmt].vtx; 93 so->need_conversion = true; 94 pipe_debug_message(&nouveau_context(pipe)->debug, FALLBACK, 95 "Converting vertex element %d, no hw format %s", 96 i, util_format_name(ve->src_format)); 97 } 98 so->element[i].state |= i; 99 100 size = util_format_get_blocksize(fmt); 101 if (so->vb_access_size[vbi] < (ve->src_offset + size)) 102 so->vb_access_size[vbi] = ve->src_offset + size; 103 104 if (1) { 105 unsigned j = transkey.nr_elements++; 106 107 transkey.element[j].type = TRANSLATE_ELEMENT_NORMAL; 108 transkey.element[j].input_format = ve->src_format; 109 transkey.element[j].input_buffer = vbi; 110 transkey.element[j].input_offset = ve->src_offset; 111 transkey.element[j].instance_divisor = ve->instance_divisor; 112 113 transkey.element[j].output_format = fmt; 114 transkey.element[j].output_offset = transkey.output_stride; 115 transkey.output_stride += (util_format_get_stride(fmt, 1) + 3) & ~3; 116 117 if (unlikely(ve->instance_divisor)) { 118 so->instance_elts |= 1 << i; 119 so->instance_bufs |= 1 << vbi; 120 if (ve->instance_divisor < so->min_instance_div[vbi]) 121 so->min_instance_div[vbi] = ve->instance_divisor; 122 } 123 } 124 } 125 126 so->translate = translate_create(&transkey); 127 so->vertex_size = transkey.output_stride / 4; 128 so->packet_vertex_limit = NV04_PFIFO_MAX_PACKET_LEN / 129 MAX2(so->vertex_size, 1); 130 131 return so; 132 } 133 134 #define NV50_3D_VERTEX_ATTRIB_INACTIVE \ 135 NV50_3D_VERTEX_ARRAY_ATTRIB_TYPE_FLOAT | \ 136 NV50_3D_VERTEX_ARRAY_ATTRIB_FORMAT_32_32_32_32 | \ 137 NV50_3D_VERTEX_ARRAY_ATTRIB_CONST 138 139 static void 140 nv50_emit_vtxattr(struct nv50_context *nv50, struct pipe_vertex_buffer *vb, 141 struct pipe_vertex_element *ve, unsigned attr) 142 { 143 struct nouveau_pushbuf *push = nv50->base.pushbuf; 144 const void *data = (const uint8_t *)vb->buffer.user + ve->src_offset; 145 float v[4]; 146 const unsigned nc = util_format_get_nr_components(ve->src_format); 147 const struct util_format_description *desc = 148 util_format_description(ve->src_format); 149 150 assert(vb->is_user_buffer); 151 152 if (desc->channel[0].pure_integer) { 153 if (desc->channel[0].type == UTIL_FORMAT_TYPE_SIGNED) { 154 desc->unpack_rgba_sint((int32_t *)v, 0, data, 0, 1, 1); 155 } else { 156 desc->unpack_rgba_uint((uint32_t *)v, 0, data, 0, 1, 1); 157 } 158 } else { 159 desc->unpack_rgba_float(v, 0, data, 0, 1, 1); 160 } 161 162 switch (nc) { 163 case 4: 164 BEGIN_NV04(push, NV50_3D(VTX_ATTR_4F_X(attr)), 4); 165 PUSH_DATAf(push, v[0]); 166 PUSH_DATAf(push, v[1]); 167 PUSH_DATAf(push, v[2]); 168 PUSH_DATAf(push, v[3]); 169 break; 170 case 3: 171 BEGIN_NV04(push, NV50_3D(VTX_ATTR_3F_X(attr)), 3); 172 PUSH_DATAf(push, v[0]); 173 PUSH_DATAf(push, v[1]); 174 PUSH_DATAf(push, v[2]); 175 break; 176 case 2: 177 BEGIN_NV04(push, NV50_3D(VTX_ATTR_2F_X(attr)), 2); 178 PUSH_DATAf(push, v[0]); 179 PUSH_DATAf(push, v[1]); 180 break; 181 case 1: 182 if (attr == nv50->vertprog->vp.edgeflag) { 183 BEGIN_NV04(push, NV50_3D(EDGEFLAG), 1); 184 PUSH_DATA (push, v[0] ? 1 : 0); 185 } 186 BEGIN_NV04(push, NV50_3D(VTX_ATTR_1F(attr)), 1); 187 PUSH_DATAf(push, v[0]); 188 break; 189 default: 190 assert(0); 191 break; 192 } 193 } 194 195 static inline void 196 nv50_user_vbuf_range(struct nv50_context *nv50, unsigned vbi, 197 uint32_t *base, uint32_t *size) 198 { 199 assert(vbi < PIPE_MAX_ATTRIBS); 200 if (unlikely(nv50->vertex->instance_bufs & (1 << vbi))) { 201 /* TODO: use min and max instance divisor to get a proper range */ 202 *base = 0; 203 *size = nv50->vtxbuf[vbi].buffer.resource->width0; 204 } else { 205 /* NOTE: if there are user buffers, we *must* have index bounds */ 206 assert(nv50->vb_elt_limit != ~0); 207 *base = nv50->vb_elt_first * nv50->vtxbuf[vbi].stride; 208 *size = nv50->vb_elt_limit * nv50->vtxbuf[vbi].stride + 209 nv50->vertex->vb_access_size[vbi]; 210 } 211 } 212 213 static void 214 nv50_upload_user_buffers(struct nv50_context *nv50, 215 uint64_t addrs[], uint32_t limits[]) 216 { 217 unsigned b; 218 219 assert(nv50->num_vtxbufs <= PIPE_MAX_ATTRIBS); 220 for (b = 0; b < nv50->num_vtxbufs; ++b) { 221 struct nouveau_bo *bo; 222 const struct pipe_vertex_buffer *vb = &nv50->vtxbuf[b]; 223 uint32_t base, size; 224 225 if (!(nv50->vbo_user & (1 << b)) || !vb->stride) 226 continue; 227 nv50_user_vbuf_range(nv50, b, &base, &size); 228 229 limits[b] = base + size - 1; 230 addrs[b] = nouveau_scratch_data(&nv50->base, vb->buffer.user, base, size, 231 &bo); 232 if (addrs[b]) 233 BCTX_REFN_bo(nv50->bufctx_3d, 3D_VERTEX_TMP, NOUVEAU_BO_GART | 234 NOUVEAU_BO_RD, bo); 235 } 236 nv50->base.vbo_dirty = true; 237 } 238 239 static void 240 nv50_update_user_vbufs(struct nv50_context *nv50) 241 { 242 uint64_t address[PIPE_MAX_ATTRIBS]; 243 struct nouveau_pushbuf *push = nv50->base.pushbuf; 244 unsigned i; 245 uint32_t written = 0; 246 247 for (i = 0; i < nv50->vertex->num_elements; ++i) { 248 struct pipe_vertex_element *ve = &nv50->vertex->element[i].pipe; 249 const unsigned b = ve->vertex_buffer_index; 250 struct pipe_vertex_buffer *vb; 251 uint32_t base, size; 252 253 assert(b < PIPE_MAX_ATTRIBS); 254 vb = &nv50->vtxbuf[b]; 255 256 if (!(nv50->vbo_user & (1 << b))) 257 continue; 258 259 if (!vb->stride) { 260 nv50_emit_vtxattr(nv50, vb, ve, i); 261 continue; 262 } 263 nv50_user_vbuf_range(nv50, b, &base, &size); 264 265 if (!(written & (1 << b))) { 266 struct nouveau_bo *bo; 267 const uint32_t bo_flags = NOUVEAU_BO_GART | NOUVEAU_BO_RD; 268 written |= 1 << b; 269 address[b] = nouveau_scratch_data(&nv50->base, vb->buffer.user, 270 base, size, &bo); 271 if (address[b]) 272 BCTX_REFN_bo(nv50->bufctx_3d, 3D_VERTEX_TMP, bo_flags, bo); 273 } 274 275 BEGIN_NV04(push, NV50_3D(VERTEX_ARRAY_LIMIT_HIGH(i)), 2); 276 PUSH_DATAh(push, address[b] + base + size - 1); 277 PUSH_DATA (push, address[b] + base + size - 1); 278 BEGIN_NV04(push, NV50_3D(VERTEX_ARRAY_START_HIGH(i)), 2); 279 PUSH_DATAh(push, address[b] + ve->src_offset); 280 PUSH_DATA (push, address[b] + ve->src_offset); 281 } 282 nv50->base.vbo_dirty = true; 283 } 284 285 static inline void 286 nv50_release_user_vbufs(struct nv50_context *nv50) 287 { 288 if (nv50->vbo_user) { 289 nouveau_bufctx_reset(nv50->bufctx_3d, NV50_BIND_3D_VERTEX_TMP); 290 nouveau_scratch_done(&nv50->base); 291 } 292 } 293 294 void 295 nv50_vertex_arrays_validate(struct nv50_context *nv50) 296 { 297 uint64_t addrs[PIPE_MAX_ATTRIBS]; 298 uint32_t limits[PIPE_MAX_ATTRIBS]; 299 struct nouveau_pushbuf *push = nv50->base.pushbuf; 300 struct nv50_vertex_stateobj *vertex = nv50->vertex; 301 struct pipe_vertex_buffer *vb; 302 struct nv50_vertex_element *ve; 303 uint32_t mask; 304 uint32_t refd = 0; 305 unsigned i; 306 const unsigned n = MAX2(vertex->num_elements, nv50->state.num_vtxelts); 307 308 if (unlikely(vertex->need_conversion)) 309 nv50->vbo_fifo = ~0; 310 else 311 if (nv50->vbo_user & ~nv50->vbo_constant) 312 nv50->vbo_fifo = nv50->vbo_push_hint ? ~0 : 0; 313 else 314 nv50->vbo_fifo = 0; 315 316 if (!nv50->vbo_fifo) { 317 /* if vertex buffer was written by GPU - flush VBO cache */ 318 assert(nv50->num_vtxbufs <= PIPE_MAX_ATTRIBS); 319 for (i = 0; i < nv50->num_vtxbufs; ++i) { 320 struct nv04_resource *buf = nv04_resource(nv50->vtxbuf[i].buffer.resource); 321 if (!nv50->vtxbuf[i].is_user_buffer && 322 buf && buf->status & NOUVEAU_BUFFER_STATUS_GPU_WRITING) { 323 buf->status &= ~NOUVEAU_BUFFER_STATUS_GPU_WRITING; 324 nv50->base.vbo_dirty = true; 325 } 326 } 327 } 328 329 /* update vertex format state */ 330 BEGIN_NV04(push, NV50_3D(VERTEX_ARRAY_ATTRIB(0)), n); 331 if (nv50->vbo_fifo) { 332 nv50->state.num_vtxelts = vertex->num_elements; 333 for (i = 0; i < vertex->num_elements; ++i) 334 PUSH_DATA (push, vertex->element[i].state); 335 for (; i < n; ++i) 336 PUSH_DATA (push, NV50_3D_VERTEX_ATTRIB_INACTIVE); 337 for (i = 0; i < n; ++i) { 338 BEGIN_NV04(push, NV50_3D(VERTEX_ARRAY_FETCH(i)), 1); 339 PUSH_DATA (push, 0); 340 } 341 return; 342 } 343 for (i = 0; i < vertex->num_elements; ++i) { 344 const unsigned b = vertex->element[i].pipe.vertex_buffer_index; 345 346 assert(b < PIPE_MAX_ATTRIBS); 347 ve = &vertex->element[i]; 348 vb = &nv50->vtxbuf[b]; 349 350 if (likely(vb->stride) || !(nv50->vbo_user & (1 << b))) 351 PUSH_DATA(push, ve->state); 352 else 353 PUSH_DATA(push, ve->state | NV50_3D_VERTEX_ARRAY_ATTRIB_CONST); 354 } 355 for (; i < n; ++i) 356 PUSH_DATA(push, NV50_3D_VERTEX_ATTRIB_INACTIVE); 357 358 /* update per-instance enables */ 359 mask = vertex->instance_elts ^ nv50->state.instance_elts; 360 while (mask) { 361 const int i = ffs(mask) - 1; 362 mask &= ~(1 << i); 363 BEGIN_NV04(push, NV50_3D(VERTEX_ARRAY_PER_INSTANCE(i)), 1); 364 PUSH_DATA (push, (vertex->instance_elts >> i) & 1); 365 } 366 nv50->state.instance_elts = vertex->instance_elts; 367 368 if (nv50->vbo_user & ~nv50->vbo_constant) 369 nv50_upload_user_buffers(nv50, addrs, limits); 370 371 /* update buffers and set constant attributes */ 372 for (i = 0; i < vertex->num_elements; ++i) { 373 uint64_t address, limit; 374 const unsigned b = vertex->element[i].pipe.vertex_buffer_index; 375 376 assert(b < PIPE_MAX_ATTRIBS); 377 ve = &vertex->element[i]; 378 vb = &nv50->vtxbuf[b]; 379 380 if (unlikely(nv50->vbo_constant & (1 << b))) { 381 BEGIN_NV04(push, NV50_3D(VERTEX_ARRAY_FETCH(i)), 1); 382 PUSH_DATA (push, 0); 383 nv50_emit_vtxattr(nv50, vb, &ve->pipe, i); 384 continue; 385 } else 386 if (nv50->vbo_user & (1 << b)) { 387 address = addrs[b] + ve->pipe.src_offset; 388 limit = addrs[b] + limits[b]; 389 } else 390 if (!vb->buffer.resource) { 391 BEGIN_NV04(push, NV50_3D(VERTEX_ARRAY_FETCH(i)), 1); 392 PUSH_DATA (push, 0); 393 continue; 394 } else { 395 struct nv04_resource *buf = nv04_resource(vb->buffer.resource); 396 if (!(refd & (1 << b))) { 397 refd |= 1 << b; 398 BCTX_REFN(nv50->bufctx_3d, 3D_VERTEX, buf, RD); 399 } 400 address = buf->address + vb->buffer_offset + ve->pipe.src_offset; 401 limit = buf->address + buf->base.width0 - 1; 402 } 403 404 if (unlikely(ve->pipe.instance_divisor)) { 405 BEGIN_NV04(push, NV50_3D(VERTEX_ARRAY_FETCH(i)), 4); 406 PUSH_DATA (push, NV50_3D_VERTEX_ARRAY_FETCH_ENABLE | vb->stride); 407 PUSH_DATAh(push, address); 408 PUSH_DATA (push, address); 409 PUSH_DATA (push, ve->pipe.instance_divisor); 410 } else { 411 BEGIN_NV04(push, NV50_3D(VERTEX_ARRAY_FETCH(i)), 3); 412 PUSH_DATA (push, NV50_3D_VERTEX_ARRAY_FETCH_ENABLE | vb->stride); 413 PUSH_DATAh(push, address); 414 PUSH_DATA (push, address); 415 } 416 BEGIN_NV04(push, NV50_3D(VERTEX_ARRAY_LIMIT_HIGH(i)), 2); 417 PUSH_DATAh(push, limit); 418 PUSH_DATA (push, limit); 419 } 420 for (; i < nv50->state.num_vtxelts; ++i) { 421 BEGIN_NV04(push, NV50_3D(VERTEX_ARRAY_FETCH(i)), 1); 422 PUSH_DATA (push, 0); 423 } 424 nv50->state.num_vtxelts = vertex->num_elements; 425 } 426 427 #define NV50_PRIM_GL_CASE(n) \ 428 case PIPE_PRIM_##n: return NV50_3D_VERTEX_BEGIN_GL_PRIMITIVE_##n 429 430 static inline unsigned 431 nv50_prim_gl(unsigned prim) 432 { 433 switch (prim) { 434 NV50_PRIM_GL_CASE(POINTS); 435 NV50_PRIM_GL_CASE(LINES); 436 NV50_PRIM_GL_CASE(LINE_LOOP); 437 NV50_PRIM_GL_CASE(LINE_STRIP); 438 NV50_PRIM_GL_CASE(TRIANGLES); 439 NV50_PRIM_GL_CASE(TRIANGLE_STRIP); 440 NV50_PRIM_GL_CASE(TRIANGLE_FAN); 441 NV50_PRIM_GL_CASE(QUADS); 442 NV50_PRIM_GL_CASE(QUAD_STRIP); 443 NV50_PRIM_GL_CASE(POLYGON); 444 NV50_PRIM_GL_CASE(LINES_ADJACENCY); 445 NV50_PRIM_GL_CASE(LINE_STRIP_ADJACENCY); 446 NV50_PRIM_GL_CASE(TRIANGLES_ADJACENCY); 447 NV50_PRIM_GL_CASE(TRIANGLE_STRIP_ADJACENCY); 448 default: 449 return NV50_3D_VERTEX_BEGIN_GL_PRIMITIVE_POINTS; 450 break; 451 } 452 } 453 454 /* For pre-nva0 transform feedback. */ 455 static const uint8_t nv50_pipe_prim_to_prim_size[PIPE_PRIM_MAX + 1] = 456 { 457 [PIPE_PRIM_POINTS] = 1, 458 [PIPE_PRIM_LINES] = 2, 459 [PIPE_PRIM_LINE_LOOP] = 2, 460 [PIPE_PRIM_LINE_STRIP] = 2, 461 [PIPE_PRIM_TRIANGLES] = 3, 462 [PIPE_PRIM_TRIANGLE_STRIP] = 3, 463 [PIPE_PRIM_TRIANGLE_FAN] = 3, 464 [PIPE_PRIM_QUADS] = 3, 465 [PIPE_PRIM_QUAD_STRIP] = 3, 466 [PIPE_PRIM_POLYGON] = 3, 467 [PIPE_PRIM_LINES_ADJACENCY] = 2, 468 [PIPE_PRIM_LINE_STRIP_ADJACENCY] = 2, 469 [PIPE_PRIM_TRIANGLES_ADJACENCY] = 3, 470 [PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY] = 3 471 }; 472 473 static void 474 nv50_draw_arrays(struct nv50_context *nv50, 475 unsigned mode, unsigned start, unsigned count, 476 unsigned instance_count) 477 { 478 struct nouveau_pushbuf *push = nv50->base.pushbuf; 479 unsigned prim; 480 481 if (nv50->state.index_bias) { 482 BEGIN_NV04(push, NV50_3D(VB_ELEMENT_BASE), 1); 483 PUSH_DATA (push, 0); 484 if (nv50->screen->base.class_3d >= NV84_3D_CLASS) { 485 BEGIN_NV04(push, NV84_3D(VERTEX_ID_BASE), 1); 486 PUSH_DATA (push, 0); 487 } 488 nv50->state.index_bias = 0; 489 } 490 491 prim = nv50_prim_gl(mode); 492 493 while (instance_count--) { 494 BEGIN_NV04(push, NV50_3D(VERTEX_BEGIN_GL), 1); 495 PUSH_DATA (push, prim); 496 BEGIN_NV04(push, NV50_3D(VERTEX_BUFFER_FIRST), 2); 497 PUSH_DATA (push, start); 498 PUSH_DATA (push, count); 499 BEGIN_NV04(push, NV50_3D(VERTEX_END_GL), 1); 500 PUSH_DATA (push, 0); 501 502 prim |= NV50_3D_VERTEX_BEGIN_GL_INSTANCE_NEXT; 503 } 504 } 505 506 static void 507 nv50_draw_elements_inline_u08(struct nouveau_pushbuf *push, const uint8_t *map, 508 unsigned start, unsigned count) 509 { 510 map += start; 511 512 if (count & 3) { 513 unsigned i; 514 BEGIN_NI04(push, NV50_3D(VB_ELEMENT_U32), count & 3); 515 for (i = 0; i < (count & 3); ++i) 516 PUSH_DATA(push, *map++); 517 count &= ~3; 518 } 519 while (count) { 520 unsigned i, nr = MIN2(count, NV04_PFIFO_MAX_PACKET_LEN * 4) / 4; 521 522 BEGIN_NI04(push, NV50_3D(VB_ELEMENT_U8), nr); 523 for (i = 0; i < nr; ++i) { 524 PUSH_DATA(push, 525 (map[3] << 24) | (map[2] << 16) | (map[1] << 8) | map[0]); 526 map += 4; 527 } 528 count -= nr * 4; 529 } 530 } 531 532 static void 533 nv50_draw_elements_inline_u16(struct nouveau_pushbuf *push, const uint16_t *map, 534 unsigned start, unsigned count) 535 { 536 map += start; 537 538 if (count & 1) { 539 count &= ~1; 540 BEGIN_NV04(push, NV50_3D(VB_ELEMENT_U32), 1); 541 PUSH_DATA (push, *map++); 542 } 543 while (count) { 544 unsigned i, nr = MIN2(count, NV04_PFIFO_MAX_PACKET_LEN * 2) / 2; 545 546 BEGIN_NI04(push, NV50_3D(VB_ELEMENT_U16), nr); 547 for (i = 0; i < nr; ++i) { 548 PUSH_DATA(push, (map[1] << 16) | map[0]); 549 map += 2; 550 } 551 count -= nr * 2; 552 } 553 } 554 555 static void 556 nv50_draw_elements_inline_u32(struct nouveau_pushbuf *push, const uint32_t *map, 557 unsigned start, unsigned count) 558 { 559 map += start; 560 561 while (count) { 562 const unsigned nr = MIN2(count, NV04_PFIFO_MAX_PACKET_LEN); 563 564 BEGIN_NI04(push, NV50_3D(VB_ELEMENT_U32), nr); 565 PUSH_DATAp(push, map, nr); 566 567 map += nr; 568 count -= nr; 569 } 570 } 571 572 static void 573 nv50_draw_elements_inline_u32_short(struct nouveau_pushbuf *push, 574 const uint32_t *map, 575 unsigned start, unsigned count) 576 { 577 map += start; 578 579 if (count & 1) { 580 count--; 581 BEGIN_NV04(push, NV50_3D(VB_ELEMENT_U32), 1); 582 PUSH_DATA (push, *map++); 583 } 584 while (count) { 585 unsigned i, nr = MIN2(count, NV04_PFIFO_MAX_PACKET_LEN * 2) / 2; 586 587 BEGIN_NI04(push, NV50_3D(VB_ELEMENT_U16), nr); 588 for (i = 0; i < nr; ++i) { 589 PUSH_DATA(push, (map[1] << 16) | map[0]); 590 map += 2; 591 } 592 count -= nr * 2; 593 } 594 } 595 596 static void 597 nv50_draw_elements(struct nv50_context *nv50, bool shorten, 598 const struct pipe_draw_info *info, 599 unsigned mode, unsigned start, unsigned count, 600 unsigned instance_count, int32_t index_bias, 601 unsigned index_size) 602 { 603 struct nouveau_pushbuf *push = nv50->base.pushbuf; 604 unsigned prim; 605 606 prim = nv50_prim_gl(mode); 607 608 if (index_bias != nv50->state.index_bias) { 609 BEGIN_NV04(push, NV50_3D(VB_ELEMENT_BASE), 1); 610 PUSH_DATA (push, index_bias); 611 if (nv50->screen->base.class_3d >= NV84_3D_CLASS) { 612 BEGIN_NV04(push, NV84_3D(VERTEX_ID_BASE), 1); 613 PUSH_DATA (push, index_bias); 614 } 615 nv50->state.index_bias = index_bias; 616 } 617 618 if (!info->has_user_indices) { 619 struct nv04_resource *buf = nv04_resource(info->index.resource); 620 unsigned pb_start; 621 unsigned pb_bytes; 622 const unsigned base = buf->offset & ~3; 623 624 start += (buf->offset & 3) >> (index_size >> 1); 625 626 assert(nouveau_resource_mapped_by_gpu(info->index.resource)); 627 628 /* This shouldn't have to be here. The going theory is that the buffer 629 * is being filled in by PGRAPH, and it's not done yet by the time it 630 * gets submitted to PFIFO, which in turn starts immediately prefetching 631 * the not-yet-written data. Ideally this wait would only happen on 632 * pushbuf submit, but it's probably not a big performance difference. 633 */ 634 if (buf->fence_wr && !nouveau_fence_signalled(buf->fence_wr)) 635 nouveau_fence_wait(buf->fence_wr, &nv50->base.debug); 636 637 while (instance_count--) { 638 BEGIN_NV04(push, NV50_3D(VERTEX_BEGIN_GL), 1); 639 PUSH_DATA (push, prim); 640 641 nouveau_pushbuf_space(push, 16, 0, 1); 642 PUSH_REFN(push, buf->bo, NOUVEAU_BO_RD | buf->domain); 643 644 switch (index_size) { 645 case 4: 646 BEGIN_NL50(push, NV50_3D(VB_ELEMENT_U32), count); 647 nouveau_pushbuf_data(push, buf->bo, base + start * 4, count * 4); 648 break; 649 case 2: 650 pb_start = (start & ~1) * 2; 651 pb_bytes = ((start + count + 1) & ~1) * 2 - pb_start; 652 653 BEGIN_NV04(push, NV50_3D(VB_ELEMENT_U16_SETUP), 1); 654 PUSH_DATA (push, (start << 31) | count); 655 BEGIN_NL50(push, NV50_3D(VB_ELEMENT_U16), pb_bytes / 4); 656 nouveau_pushbuf_data(push, buf->bo, base + pb_start, pb_bytes); 657 BEGIN_NV04(push, NV50_3D(VB_ELEMENT_U16_SETUP), 1); 658 PUSH_DATA (push, 0); 659 break; 660 default: 661 assert(index_size == 1); 662 pb_start = start & ~3; 663 pb_bytes = ((start + count + 3) & ~3) - pb_start; 664 665 BEGIN_NV04(push, NV50_3D(VB_ELEMENT_U8_SETUP), 1); 666 PUSH_DATA (push, (start << 30) | count); 667 BEGIN_NL50(push, NV50_3D(VB_ELEMENT_U8), pb_bytes / 4); 668 nouveau_pushbuf_data(push, buf->bo, base + pb_start, pb_bytes); 669 BEGIN_NV04(push, NV50_3D(VB_ELEMENT_U8_SETUP), 1); 670 PUSH_DATA (push, 0); 671 break; 672 } 673 BEGIN_NV04(push, NV50_3D(VERTEX_END_GL), 1); 674 PUSH_DATA (push, 0); 675 676 prim |= NV50_3D_VERTEX_BEGIN_GL_INSTANCE_NEXT; 677 } 678 } else { 679 const void *data = info->index.user; 680 681 while (instance_count--) { 682 BEGIN_NV04(push, NV50_3D(VERTEX_BEGIN_GL), 1); 683 PUSH_DATA (push, prim); 684 switch (index_size) { 685 case 1: 686 nv50_draw_elements_inline_u08(push, data, start, count); 687 break; 688 case 2: 689 nv50_draw_elements_inline_u16(push, data, start, count); 690 break; 691 case 4: 692 if (shorten) 693 nv50_draw_elements_inline_u32_short(push, data, start, count); 694 else 695 nv50_draw_elements_inline_u32(push, data, start, count); 696 break; 697 default: 698 assert(0); 699 return; 700 } 701 BEGIN_NV04(push, NV50_3D(VERTEX_END_GL), 1); 702 PUSH_DATA (push, 0); 703 704 prim |= NV50_3D_VERTEX_BEGIN_GL_INSTANCE_NEXT; 705 } 706 } 707 NOUVEAU_DRV_STAT(&nv50->screen->base, draw_calls_indexed, 1); 708 } 709 710 static void 711 nva0_draw_stream_output(struct nv50_context *nv50, 712 const struct pipe_draw_info *info) 713 { 714 struct nouveau_pushbuf *push = nv50->base.pushbuf; 715 struct nv50_so_target *so = nv50_so_target(info->count_from_stream_output); 716 struct nv04_resource *res = nv04_resource(so->pipe.buffer); 717 unsigned num_instances = info->instance_count; 718 unsigned mode = nv50_prim_gl(info->mode); 719 720 if (unlikely(nv50->screen->base.class_3d < NVA0_3D_CLASS)) { 721 /* A proper implementation without waiting doesn't seem possible, 722 * so don't bother. 723 */ 724 NOUVEAU_ERR("draw_stream_output not supported on pre-NVA0 cards\n"); 725 return; 726 } 727 728 if (res->status & NOUVEAU_BUFFER_STATUS_GPU_WRITING) { 729 res->status &= ~NOUVEAU_BUFFER_STATUS_GPU_WRITING; 730 PUSH_SPACE(push, 4); 731 BEGIN_NV04(push, SUBC_3D(NV50_GRAPH_SERIALIZE), 1); 732 PUSH_DATA (push, 0); 733 BEGIN_NV04(push, NV50_3D(VERTEX_ARRAY_FLUSH), 1); 734 PUSH_DATA (push, 0); 735 } 736 737 assert(num_instances); 738 do { 739 PUSH_SPACE(push, 8); 740 BEGIN_NV04(push, NV50_3D(VERTEX_BEGIN_GL), 1); 741 PUSH_DATA (push, mode); 742 BEGIN_NV04(push, NVA0_3D(DRAW_TFB_BASE), 1); 743 PUSH_DATA (push, 0); 744 BEGIN_NV04(push, NVA0_3D(DRAW_TFB_STRIDE), 1); 745 PUSH_DATA (push, so->stride); 746 nv50_hw_query_pushbuf_submit(push, NVA0_3D_DRAW_TFB_BYTES, 747 nv50_query(so->pq), 0x4); 748 BEGIN_NV04(push, NV50_3D(VERTEX_END_GL), 1); 749 PUSH_DATA (push, 0); 750 751 mode |= NV50_3D_VERTEX_BEGIN_GL_INSTANCE_NEXT; 752 } while (--num_instances); 753 } 754 755 static void 756 nv50_draw_vbo_kick_notify(struct nouveau_pushbuf *chan) 757 { 758 struct nv50_screen *screen = chan->user_priv; 759 760 nouveau_fence_update(&screen->base, true); 761 762 nv50_bufctx_fence(screen->cur_ctx->bufctx_3d, true); 763 } 764 765 void 766 nv50_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info) 767 { 768 struct nv50_context *nv50 = nv50_context(pipe); 769 struct nouveau_pushbuf *push = nv50->base.pushbuf; 770 bool tex_dirty = false; 771 int s; 772 773 if (info->index_size && !info->has_user_indices) 774 BCTX_REFN(nv50->bufctx_3d, 3D_INDEX, nv04_resource(info->index.resource), RD); 775 776 /* NOTE: caller must ensure that (min_index + index_bias) is >= 0 */ 777 nv50->vb_elt_first = info->min_index + info->index_bias; 778 nv50->vb_elt_limit = info->max_index - info->min_index; 779 nv50->instance_off = info->start_instance; 780 nv50->instance_max = info->instance_count - 1; 781 782 /* For picking only a few vertices from a large user buffer, push is better, 783 * if index count is larger and we expect repeated vertices, suggest upload. 784 */ 785 nv50->vbo_push_hint = /* the 64 is heuristic */ 786 !(info->index_size && ((nv50->vb_elt_limit + 64) < info->count)); 787 788 if (nv50->vbo_user && !(nv50->dirty_3d & (NV50_NEW_3D_ARRAYS | NV50_NEW_3D_VERTEX))) { 789 if (!!nv50->vbo_fifo != nv50->vbo_push_hint) 790 nv50->dirty_3d |= NV50_NEW_3D_ARRAYS; 791 else 792 if (!nv50->vbo_fifo) 793 nv50_update_user_vbufs(nv50); 794 } 795 796 if (unlikely(nv50->num_so_targets && !nv50->gmtyprog)) 797 nv50->state.prim_size = nv50_pipe_prim_to_prim_size[info->mode]; 798 799 nv50_state_validate_3d(nv50, ~0); 800 801 push->kick_notify = nv50_draw_vbo_kick_notify; 802 803 for (s = 0; s < 3 && !nv50->cb_dirty; ++s) { 804 if (nv50->constbuf_coherent[s]) 805 nv50->cb_dirty = true; 806 } 807 808 /* If there are any coherent constbufs, flush the cache */ 809 if (nv50->cb_dirty) { 810 BEGIN_NV04(push, NV50_3D(CODE_CB_FLUSH), 1); 811 PUSH_DATA (push, 0); 812 nv50->cb_dirty = false; 813 } 814 815 for (s = 0; s < 3 && !tex_dirty; ++s) { 816 if (nv50->textures_coherent[s]) 817 tex_dirty = true; 818 } 819 820 if (tex_dirty) { 821 BEGIN_NV04(push, NV50_3D(TEX_CACHE_CTL), 1); 822 PUSH_DATA (push, 0x20); 823 } 824 825 if (nv50->screen->base.class_3d >= NVA0_3D_CLASS && 826 nv50->seamless_cube_map != nv50->state.seamless_cube_map) { 827 nv50->state.seamless_cube_map = nv50->seamless_cube_map; 828 BEGIN_NV04(push, SUBC_3D(NVA0_3D_TEX_MISC), 1); 829 PUSH_DATA (push, nv50->seamless_cube_map ? NVA0_3D_TEX_MISC_SEAMLESS_CUBE_MAP : 0); 830 } 831 832 if (nv50->vertprog->mul_zero_wins != nv50->state.mul_zero_wins) { 833 nv50->state.mul_zero_wins = nv50->vertprog->mul_zero_wins; 834 BEGIN_NV04(push, NV50_3D(UNK1690), 1); 835 PUSH_DATA (push, 0x00010000 * !!nv50->state.mul_zero_wins); 836 } 837 838 if (nv50->vbo_fifo) { 839 nv50_push_vbo(nv50, info); 840 goto cleanup; 841 } 842 843 if (nv50->state.instance_base != info->start_instance) { 844 nv50->state.instance_base = info->start_instance; 845 /* NOTE: this does not affect the shader input, should it ? */ 846 BEGIN_NV04(push, NV50_3D(VB_INSTANCE_BASE), 1); 847 PUSH_DATA (push, info->start_instance); 848 } 849 850 nv50->base.vbo_dirty |= !!nv50->vtxbufs_coherent; 851 852 if (nv50->base.vbo_dirty) { 853 BEGIN_NV04(push, NV50_3D(VERTEX_ARRAY_FLUSH), 1); 854 PUSH_DATA (push, 0); 855 nv50->base.vbo_dirty = false; 856 } 857 858 if (info->index_size) { 859 bool shorten = info->max_index <= 65535; 860 861 if (info->primitive_restart != nv50->state.prim_restart) { 862 if (info->primitive_restart) { 863 BEGIN_NV04(push, NV50_3D(PRIM_RESTART_ENABLE), 2); 864 PUSH_DATA (push, 1); 865 PUSH_DATA (push, info->restart_index); 866 867 if (info->restart_index > 65535) 868 shorten = false; 869 } else { 870 BEGIN_NV04(push, NV50_3D(PRIM_RESTART_ENABLE), 1); 871 PUSH_DATA (push, 0); 872 } 873 nv50->state.prim_restart = info->primitive_restart; 874 } else 875 if (info->primitive_restart) { 876 BEGIN_NV04(push, NV50_3D(PRIM_RESTART_INDEX), 1); 877 PUSH_DATA (push, info->restart_index); 878 879 if (info->restart_index > 65535) 880 shorten = false; 881 } 882 883 nv50_draw_elements(nv50, shorten, info, 884 info->mode, info->start, info->count, 885 info->instance_count, info->index_bias, info->index_size); 886 } else 887 if (unlikely(info->count_from_stream_output)) { 888 nva0_draw_stream_output(nv50, info); 889 } else { 890 nv50_draw_arrays(nv50, 891 info->mode, info->start, info->count, 892 info->instance_count); 893 } 894 895 cleanup: 896 push->kick_notify = nv50_default_kick_notify; 897 898 nv50_release_user_vbufs(nv50); 899 900 nouveau_pushbuf_bufctx(push, NULL); 901 902 nouveau_bufctx_reset(nv50->bufctx_3d, NV50_BIND_3D_INDEX); 903 } 904
