1 /* 2 Copyright (C) Intel Corp. 2006. All Rights Reserved. 3 Intel funded Tungsten Graphics to 4 develop this 3D driver. 5 6 Permission is hereby granted, free of charge, to any person obtaining 7 a copy of this software and associated documentation files (the 8 "Software"), to deal in the Software without restriction, including 9 without limitation the rights to use, copy, modify, merge, publish, 10 distribute, sublicense, and/or sell copies of the Software, and to 11 permit persons to whom the Software is furnished to do so, subject to 12 the following conditions: 13 14 The above copyright notice and this permission notice (including the 15 next paragraph) shall be included in all copies or substantial 16 portions of the Software. 17 18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 19 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 21 IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 22 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 23 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 24 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 26 **********************************************************************/ 27 /* 28 * Authors: 29 * Keith Whitwell <keithw (at) vmware.com> 30 */ 31 32 33 34 #include "intel_batchbuffer.h" 35 #include "intel_fbo.h" 36 #include "intel_mipmap_tree.h" 37 38 #include "brw_context.h" 39 #include "brw_state.h" 40 #include "brw_defines.h" 41 42 #include "main/framebuffer.h" 43 #include "main/fbobject.h" 44 #include "main/glformats.h" 45 46 /* Constant single cliprect for framebuffer object or DRI2 drawing */ 47 static void 48 upload_drawing_rect(struct brw_context *brw) 49 { 50 struct gl_context *ctx = &brw->ctx; 51 const struct gl_framebuffer *fb = ctx->DrawBuffer; 52 const unsigned int fb_width = _mesa_geometric_width(fb); 53 const unsigned int fb_height = _mesa_geometric_height(fb); 54 55 BEGIN_BATCH(4); 56 OUT_BATCH(_3DSTATE_DRAWING_RECTANGLE << 16 | (4 - 2)); 57 OUT_BATCH(0); /* xmin, ymin */ 58 OUT_BATCH(((fb_width - 1) & 0xffff) | ((fb_height - 1) << 16)); 59 OUT_BATCH(0); 60 ADVANCE_BATCH(); 61 } 62 63 const struct brw_tracked_state brw_drawing_rect = { 64 .dirty = { 65 .mesa = _NEW_BUFFERS, 66 .brw = BRW_NEW_BLORP | 67 BRW_NEW_CONTEXT, 68 }, 69 .emit = upload_drawing_rect 70 }; 71 72 /** 73 * Upload pointers to the per-stage state. 74 * 75 * The state pointers in this packet are all relative to the general state 76 * base address set by CMD_STATE_BASE_ADDRESS, which is 0. 77 */ 78 static void 79 upload_pipelined_state_pointers(struct brw_context *brw) 80 { 81 if (brw->gen == 5) { 82 /* Need to flush before changing clip max threads for errata. */ 83 BEGIN_BATCH(1); 84 OUT_BATCH(MI_FLUSH); 85 ADVANCE_BATCH(); 86 } 87 88 BEGIN_BATCH(7); 89 OUT_BATCH(_3DSTATE_PIPELINED_POINTERS << 16 | (7 - 2)); 90 OUT_RELOC(brw->batch.bo, I915_GEM_DOMAIN_INSTRUCTION, 0, 91 brw->vs.base.state_offset); 92 if (brw->ff_gs.prog_active) 93 OUT_RELOC(brw->batch.bo, I915_GEM_DOMAIN_INSTRUCTION, 0, 94 brw->ff_gs.state_offset | 1); 95 else 96 OUT_BATCH(0); 97 OUT_RELOC(brw->batch.bo, I915_GEM_DOMAIN_INSTRUCTION, 0, 98 brw->clip.state_offset | 1); 99 OUT_RELOC(brw->batch.bo, I915_GEM_DOMAIN_INSTRUCTION, 0, 100 brw->sf.state_offset); 101 OUT_RELOC(brw->batch.bo, I915_GEM_DOMAIN_INSTRUCTION, 0, 102 brw->wm.base.state_offset); 103 OUT_RELOC(brw->batch.bo, I915_GEM_DOMAIN_INSTRUCTION, 0, 104 brw->cc.state_offset); 105 ADVANCE_BATCH(); 106 107 brw->ctx.NewDriverState |= BRW_NEW_PSP; 108 } 109 110 static void 111 upload_psp_urb_cbs(struct brw_context *brw) 112 { 113 upload_pipelined_state_pointers(brw); 114 brw_upload_urb_fence(brw); 115 brw_upload_cs_urb_state(brw); 116 } 117 118 const struct brw_tracked_state brw_psp_urb_cbs = { 119 .dirty = { 120 .mesa = 0, 121 .brw = BRW_NEW_BATCH | 122 BRW_NEW_BLORP | 123 BRW_NEW_FF_GS_PROG_DATA | 124 BRW_NEW_GEN4_UNIT_STATE | 125 BRW_NEW_STATE_BASE_ADDRESS | 126 BRW_NEW_URB_FENCE, 127 }, 128 .emit = upload_psp_urb_cbs, 129 }; 130 131 uint32_t 132 brw_depthbuffer_format(struct brw_context *brw) 133 { 134 struct gl_context *ctx = &brw->ctx; 135 struct gl_framebuffer *fb = ctx->DrawBuffer; 136 struct intel_renderbuffer *drb = intel_get_renderbuffer(fb, BUFFER_DEPTH); 137 struct intel_renderbuffer *srb; 138 139 if (!drb && 140 (srb = intel_get_renderbuffer(fb, BUFFER_STENCIL)) && 141 !srb->mt->stencil_mt && 142 (intel_rb_format(srb) == MESA_FORMAT_Z24_UNORM_S8_UINT || 143 intel_rb_format(srb) == MESA_FORMAT_Z32_FLOAT_S8X24_UINT)) { 144 drb = srb; 145 } 146 147 if (!drb) 148 return BRW_DEPTHFORMAT_D32_FLOAT; 149 150 return brw_depth_format(brw, drb->mt->format); 151 } 152 153 /** 154 * Returns the mask of how many bits of x and y must be handled through the 155 * depthbuffer's draw offset x and y fields. 156 * 157 * The draw offset x/y field of the depthbuffer packet is unfortunately shared 158 * between the depth, hiz, and stencil buffers. Because it can be hard to get 159 * all 3 to agree on this value, we want to do as much drawing offset 160 * adjustment as possible by moving the base offset of the 3 buffers, which is 161 * restricted to tile boundaries. 162 * 163 * For each buffer, the remainder must be applied through the x/y draw offset. 164 * This returns the worst-case mask of the low bits that have to go into the 165 * packet. If the 3 buffers don't agree on the drawing offset ANDed with this 166 * mask, then we're in trouble. 167 */ 168 void 169 brw_get_depthstencil_tile_masks(struct intel_mipmap_tree *depth_mt, 170 uint32_t depth_level, 171 uint32_t depth_layer, 172 struct intel_mipmap_tree *stencil_mt, 173 uint32_t *out_tile_mask_x, 174 uint32_t *out_tile_mask_y) 175 { 176 uint32_t tile_mask_x = 0, tile_mask_y = 0; 177 178 if (depth_mt) { 179 intel_get_tile_masks(depth_mt->tiling, depth_mt->tr_mode, 180 depth_mt->cpp, 181 &tile_mask_x, &tile_mask_y); 182 183 if (intel_miptree_level_has_hiz(depth_mt, depth_level)) { 184 uint32_t hiz_tile_mask_x, hiz_tile_mask_y; 185 intel_get_tile_masks(depth_mt->hiz_buf->mt->tiling, 186 depth_mt->hiz_buf->mt->tr_mode, 187 depth_mt->hiz_buf->mt->cpp, 188 &hiz_tile_mask_x, 189 &hiz_tile_mask_y); 190 191 /* Each HiZ row represents 2 rows of pixels */ 192 hiz_tile_mask_y = hiz_tile_mask_y << 1 | 1; 193 194 tile_mask_x |= hiz_tile_mask_x; 195 tile_mask_y |= hiz_tile_mask_y; 196 } 197 } 198 199 if (stencil_mt) { 200 if (stencil_mt->stencil_mt) 201 stencil_mt = stencil_mt->stencil_mt; 202 203 if (stencil_mt->format == MESA_FORMAT_S_UINT8) { 204 /* Separate stencil buffer uses 64x64 tiles. */ 205 tile_mask_x |= 63; 206 tile_mask_y |= 63; 207 } else { 208 uint32_t stencil_tile_mask_x, stencil_tile_mask_y; 209 intel_get_tile_masks(stencil_mt->tiling, 210 stencil_mt->tr_mode, 211 stencil_mt->cpp, 212 &stencil_tile_mask_x, 213 &stencil_tile_mask_y); 214 215 tile_mask_x |= stencil_tile_mask_x; 216 tile_mask_y |= stencil_tile_mask_y; 217 } 218 } 219 220 *out_tile_mask_x = tile_mask_x; 221 *out_tile_mask_y = tile_mask_y; 222 } 223 224 static struct intel_mipmap_tree * 225 get_stencil_miptree(struct intel_renderbuffer *irb) 226 { 227 if (!irb) 228 return NULL; 229 if (irb->mt->stencil_mt) 230 return irb->mt->stencil_mt; 231 return irb->mt; 232 } 233 234 void 235 brw_workaround_depthstencil_alignment(struct brw_context *brw, 236 GLbitfield clear_mask) 237 { 238 struct gl_context *ctx = &brw->ctx; 239 struct gl_framebuffer *fb = ctx->DrawBuffer; 240 bool rebase_depth = false; 241 bool rebase_stencil = false; 242 struct intel_renderbuffer *depth_irb = intel_get_renderbuffer(fb, BUFFER_DEPTH); 243 struct intel_renderbuffer *stencil_irb = intel_get_renderbuffer(fb, BUFFER_STENCIL); 244 struct intel_mipmap_tree *depth_mt = NULL; 245 struct intel_mipmap_tree *stencil_mt = get_stencil_miptree(stencil_irb); 246 uint32_t tile_x = 0, tile_y = 0, stencil_tile_x = 0, stencil_tile_y = 0; 247 uint32_t stencil_draw_x = 0, stencil_draw_y = 0; 248 bool invalidate_depth = clear_mask & BUFFER_BIT_DEPTH; 249 bool invalidate_stencil = clear_mask & BUFFER_BIT_STENCIL; 250 251 if (depth_irb) 252 depth_mt = depth_irb->mt; 253 254 /* Initialize brw->depthstencil to 'nop' workaround state. 255 */ 256 brw->depthstencil.tile_x = 0; 257 brw->depthstencil.tile_y = 0; 258 brw->depthstencil.depth_offset = 0; 259 brw->depthstencil.stencil_offset = 0; 260 brw->depthstencil.hiz_offset = 0; 261 brw->depthstencil.depth_mt = NULL; 262 brw->depthstencil.stencil_mt = NULL; 263 if (depth_irb) 264 brw->depthstencil.depth_mt = depth_mt; 265 if (stencil_irb) 266 brw->depthstencil.stencil_mt = get_stencil_miptree(stencil_irb); 267 268 /* Gen6+ doesn't require the workarounds, since we always program the 269 * surface state at the start of the whole surface. 270 */ 271 if (brw->gen >= 6) 272 return; 273 274 /* Check if depth buffer is in depth/stencil format. If so, then it's only 275 * safe to invalidate it if we're also clearing stencil, and both depth_irb 276 * and stencil_irb point to the same miptree. 277 * 278 * Note: it's not sufficient to check for the case where 279 * _mesa_get_format_base_format(depth_mt->format) == GL_DEPTH_STENCIL, 280 * because this fails to catch depth/stencil buffers on hardware that uses 281 * separate stencil. To catch that case, we check whether 282 * depth_mt->stencil_mt is non-NULL. 283 */ 284 if (depth_irb && invalidate_depth && 285 (_mesa_get_format_base_format(depth_mt->format) == GL_DEPTH_STENCIL || 286 depth_mt->stencil_mt)) { 287 invalidate_depth = invalidate_stencil && depth_irb && stencil_irb 288 && depth_irb->mt == stencil_irb->mt; 289 } 290 291 uint32_t tile_mask_x, tile_mask_y; 292 brw_get_depthstencil_tile_masks(depth_mt, 293 depth_mt ? depth_irb->mt_level : 0, 294 depth_mt ? depth_irb->mt_layer : 0, 295 stencil_mt, 296 &tile_mask_x, &tile_mask_y); 297 298 if (depth_irb) { 299 tile_x = depth_irb->draw_x & tile_mask_x; 300 tile_y = depth_irb->draw_y & tile_mask_y; 301 302 /* According to the Sandy Bridge PRM, volume 2 part 1, pp326-327 303 * (3DSTATE_DEPTH_BUFFER dw5), in the documentation for "Depth 304 * Coordinate Offset X/Y": 305 * 306 * "The 3 LSBs of both offsets must be zero to ensure correct 307 * alignment" 308 */ 309 if (tile_x & 7 || tile_y & 7) 310 rebase_depth = true; 311 312 /* We didn't even have intra-tile offsets before g45. */ 313 if (!brw->has_surface_tile_offset) { 314 if (tile_x || tile_y) 315 rebase_depth = true; 316 } 317 318 if (rebase_depth) { 319 perf_debug("HW workaround: blitting depth level %d to a temporary " 320 "to fix alignment (depth tile offset %d,%d)\n", 321 depth_irb->mt_level, tile_x, tile_y); 322 intel_renderbuffer_move_to_temp(brw, depth_irb, invalidate_depth); 323 /* In the case of stencil_irb being the same packed depth/stencil 324 * texture but not the same rb, make it point at our rebased mt, too. 325 */ 326 if (stencil_irb && 327 stencil_irb != depth_irb && 328 stencil_irb->mt == depth_mt) { 329 intel_miptree_reference(&stencil_irb->mt, depth_irb->mt); 330 intel_renderbuffer_set_draw_offset(stencil_irb); 331 } 332 333 stencil_mt = get_stencil_miptree(stencil_irb); 334 335 tile_x = depth_irb->draw_x & tile_mask_x; 336 tile_y = depth_irb->draw_y & tile_mask_y; 337 } 338 339 if (stencil_irb) { 340 stencil_mt = get_stencil_miptree(stencil_irb); 341 intel_miptree_get_image_offset(stencil_mt, 342 stencil_irb->mt_level, 343 stencil_irb->mt_layer, 344 &stencil_draw_x, &stencil_draw_y); 345 int stencil_tile_x = stencil_draw_x & tile_mask_x; 346 int stencil_tile_y = stencil_draw_y & tile_mask_y; 347 348 /* If stencil doesn't match depth, then we'll need to rebase stencil 349 * as well. (if we hadn't decided to rebase stencil before, the 350 * post-stencil depth test will also rebase depth to try to match it 351 * up). 352 */ 353 if (tile_x != stencil_tile_x || 354 tile_y != stencil_tile_y) { 355 rebase_stencil = true; 356 } 357 } 358 } 359 360 /* If we have (just) stencil, check it for ignored low bits as well */ 361 if (stencil_irb) { 362 intel_miptree_get_image_offset(stencil_mt, 363 stencil_irb->mt_level, 364 stencil_irb->mt_layer, 365 &stencil_draw_x, &stencil_draw_y); 366 stencil_tile_x = stencil_draw_x & tile_mask_x; 367 stencil_tile_y = stencil_draw_y & tile_mask_y; 368 369 if (stencil_tile_x & 7 || stencil_tile_y & 7) 370 rebase_stencil = true; 371 372 if (!brw->has_surface_tile_offset) { 373 if (stencil_tile_x || stencil_tile_y) 374 rebase_stencil = true; 375 } 376 } 377 378 if (rebase_stencil) { 379 perf_debug("HW workaround: blitting stencil level %d to a temporary " 380 "to fix alignment (stencil tile offset %d,%d)\n", 381 stencil_irb->mt_level, stencil_tile_x, stencil_tile_y); 382 383 intel_renderbuffer_move_to_temp(brw, stencil_irb, invalidate_stencil); 384 stencil_mt = get_stencil_miptree(stencil_irb); 385 386 intel_miptree_get_image_offset(stencil_mt, 387 stencil_irb->mt_level, 388 stencil_irb->mt_layer, 389 &stencil_draw_x, &stencil_draw_y); 390 stencil_tile_x = stencil_draw_x & tile_mask_x; 391 stencil_tile_y = stencil_draw_y & tile_mask_y; 392 393 if (depth_irb && depth_irb->mt == stencil_irb->mt) { 394 intel_miptree_reference(&depth_irb->mt, stencil_irb->mt); 395 intel_renderbuffer_set_draw_offset(depth_irb); 396 } else if (depth_irb && !rebase_depth) { 397 if (tile_x != stencil_tile_x || 398 tile_y != stencil_tile_y) { 399 perf_debug("HW workaround: blitting depth level %d to a temporary " 400 "to match stencil level %d alignment (depth tile offset " 401 "%d,%d, stencil offset %d,%d)\n", 402 depth_irb->mt_level, 403 stencil_irb->mt_level, 404 tile_x, tile_y, 405 stencil_tile_x, stencil_tile_y); 406 407 intel_renderbuffer_move_to_temp(brw, depth_irb, invalidate_depth); 408 409 tile_x = depth_irb->draw_x & tile_mask_x; 410 tile_y = depth_irb->draw_y & tile_mask_y; 411 412 if (stencil_irb && stencil_irb->mt == depth_mt) { 413 intel_miptree_reference(&stencil_irb->mt, depth_irb->mt); 414 intel_renderbuffer_set_draw_offset(stencil_irb); 415 } 416 417 WARN_ONCE(stencil_tile_x != tile_x || 418 stencil_tile_y != tile_y, 419 "Rebased stencil tile offset (%d,%d) doesn't match depth " 420 "tile offset (%d,%d).\n", 421 stencil_tile_x, stencil_tile_y, 422 tile_x, tile_y); 423 } 424 } 425 } 426 427 if (!depth_irb) { 428 tile_x = stencil_tile_x; 429 tile_y = stencil_tile_y; 430 } 431 432 /* While we just tried to get everything aligned, we may have failed to do 433 * so in the case of rendering to array or 3D textures, where nonzero faces 434 * will still have an offset post-rebase. At least give an informative 435 * warning. 436 */ 437 WARN_ONCE((tile_x & 7) || (tile_y & 7), 438 "Depth/stencil buffer needs alignment to 8-pixel boundaries.\n" 439 "Truncating offset, bad rendering may occur.\n"); 440 tile_x &= ~7; 441 tile_y &= ~7; 442 443 /* Now, after rebasing, save off the new dephtstencil state so the hardware 444 * packets can just dereference that without re-calculating tile offsets. 445 */ 446 brw->depthstencil.tile_x = tile_x; 447 brw->depthstencil.tile_y = tile_y; 448 if (depth_irb) { 449 depth_mt = depth_irb->mt; 450 brw->depthstencil.depth_mt = depth_mt; 451 brw->depthstencil.depth_offset = 452 intel_miptree_get_aligned_offset(depth_mt, 453 depth_irb->draw_x & ~tile_mask_x, 454 depth_irb->draw_y & ~tile_mask_y); 455 if (intel_renderbuffer_has_hiz(depth_irb)) { 456 brw->depthstencil.hiz_offset = 457 intel_miptree_get_aligned_offset(depth_mt, 458 depth_irb->draw_x & ~tile_mask_x, 459 (depth_irb->draw_y & ~tile_mask_y) / 2); 460 } 461 } 462 if (stencil_irb) { 463 stencil_mt = get_stencil_miptree(stencil_irb); 464 465 brw->depthstencil.stencil_mt = stencil_mt; 466 if (stencil_mt->format == MESA_FORMAT_S_UINT8) { 467 /* Note: we can't compute the stencil offset using 468 * intel_region_get_aligned_offset(), because stencil_region claims 469 * that the region is untiled even though it's W tiled. 470 */ 471 brw->depthstencil.stencil_offset = 472 (stencil_draw_y & ~tile_mask_y) * stencil_mt->pitch + 473 (stencil_draw_x & ~tile_mask_x) * 64; 474 } 475 } 476 } 477 478 void 479 brw_emit_depthbuffer(struct brw_context *brw) 480 { 481 struct gl_context *ctx = &brw->ctx; 482 struct gl_framebuffer *fb = ctx->DrawBuffer; 483 /* _NEW_BUFFERS */ 484 struct intel_renderbuffer *depth_irb = intel_get_renderbuffer(fb, BUFFER_DEPTH); 485 struct intel_renderbuffer *stencil_irb = intel_get_renderbuffer(fb, BUFFER_STENCIL); 486 struct intel_mipmap_tree *depth_mt = brw->depthstencil.depth_mt; 487 struct intel_mipmap_tree *stencil_mt = brw->depthstencil.stencil_mt; 488 uint32_t tile_x = brw->depthstencil.tile_x; 489 uint32_t tile_y = brw->depthstencil.tile_y; 490 bool hiz = depth_irb && intel_renderbuffer_has_hiz(depth_irb); 491 bool separate_stencil = false; 492 uint32_t depth_surface_type = BRW_SURFACE_NULL; 493 uint32_t depthbuffer_format = BRW_DEPTHFORMAT_D32_FLOAT; 494 uint32_t depth_offset = 0; 495 uint32_t width = 1, height = 1; 496 497 if (stencil_mt) { 498 separate_stencil = stencil_mt->format == MESA_FORMAT_S_UINT8; 499 500 /* Gen7 supports only separate stencil */ 501 assert(separate_stencil || brw->gen < 7); 502 } 503 504 /* If there's a packed depth/stencil bound to stencil only, we need to 505 * emit the packed depth/stencil buffer packet. 506 */ 507 if (!depth_irb && stencil_irb && !separate_stencil) { 508 depth_irb = stencil_irb; 509 depth_mt = stencil_mt; 510 } 511 512 if (depth_irb && depth_mt) { 513 /* When 3DSTATE_DEPTH_BUFFER.Separate_Stencil_Enable is set, then 514 * 3DSTATE_DEPTH_BUFFER.Surface_Format is not permitted to be a packed 515 * depthstencil format. 516 * 517 * Gens prior to 7 require that HiZ_Enable and Separate_Stencil_Enable be 518 * set to the same value. Gens after 7 implicitly always set 519 * Separate_Stencil_Enable; software cannot disable it. 520 */ 521 if ((brw->gen < 7 && hiz) || brw->gen >= 7) { 522 assert(!_mesa_is_format_packed_depth_stencil(depth_mt->format)); 523 } 524 525 /* Prior to Gen7, if using separate stencil, hiz must be enabled. */ 526 assert(brw->gen >= 7 || !separate_stencil || hiz); 527 528 assert(brw->gen < 6 || depth_mt->tiling == I915_TILING_Y); 529 assert(!hiz || depth_mt->tiling == I915_TILING_Y); 530 531 depthbuffer_format = brw_depthbuffer_format(brw); 532 depth_surface_type = BRW_SURFACE_2D; 533 depth_offset = brw->depthstencil.depth_offset; 534 width = depth_irb->Base.Base.Width; 535 height = depth_irb->Base.Base.Height; 536 } else if (separate_stencil) { 537 /* 538 * There exists a separate stencil buffer but no depth buffer. 539 * 540 * The stencil buffer inherits most of its fields from 541 * 3DSTATE_DEPTH_BUFFER: namely the tile walk, surface type, width, and 542 * height. 543 * 544 * The tiled bit must be set. From the Sandybridge PRM, Volume 2, Part 1, 545 * Section 7.5.5.1.1 3DSTATE_DEPTH_BUFFER, Bit 1.27 Tiled Surface: 546 * [DevGT+]: This field must be set to TRUE. 547 */ 548 assert(brw->has_separate_stencil); 549 550 depth_surface_type = BRW_SURFACE_2D; 551 width = stencil_irb->Base.Base.Width; 552 height = stencil_irb->Base.Base.Height; 553 } 554 555 if (depth_mt) 556 brw_render_cache_set_check_flush(brw, depth_mt->bo); 557 if (stencil_mt) 558 brw_render_cache_set_check_flush(brw, stencil_mt->bo); 559 560 brw->vtbl.emit_depth_stencil_hiz(brw, depth_mt, depth_offset, 561 depthbuffer_format, depth_surface_type, 562 stencil_mt, hiz, separate_stencil, 563 width, height, tile_x, tile_y); 564 } 565 566 void 567 brw_emit_depth_stencil_hiz(struct brw_context *brw, 568 struct intel_mipmap_tree *depth_mt, 569 uint32_t depth_offset, uint32_t depthbuffer_format, 570 uint32_t depth_surface_type, 571 struct intel_mipmap_tree *stencil_mt, 572 bool hiz, bool separate_stencil, 573 uint32_t width, uint32_t height, 574 uint32_t tile_x, uint32_t tile_y) 575 { 576 /* Enable the hiz bit if we're doing separate stencil, because it and the 577 * separate stencil bit must have the same value. From Section 2.11.5.6.1.1 578 * 3DSTATE_DEPTH_BUFFER, Bit 1.21 "Separate Stencil Enable": 579 * [DevIL]: If this field is enabled, Hierarchical Depth Buffer 580 * Enable must also be enabled. 581 * 582 * [DevGT]: This field must be set to the same value (enabled or 583 * disabled) as Hierarchical Depth Buffer Enable 584 */ 585 bool enable_hiz_ss = hiz || separate_stencil; 586 587 588 /* 3DSTATE_DEPTH_BUFFER, 3DSTATE_STENCIL_BUFFER are both 589 * non-pipelined state that will need the PIPE_CONTROL workaround. 590 */ 591 if (brw->gen == 6) { 592 brw_emit_depth_stall_flushes(brw); 593 } 594 595 unsigned int len; 596 if (brw->gen >= 6) 597 len = 7; 598 else if (brw->is_g4x || brw->gen == 5) 599 len = 6; 600 else 601 len = 5; 602 603 BEGIN_BATCH(len); 604 OUT_BATCH(_3DSTATE_DEPTH_BUFFER << 16 | (len - 2)); 605 OUT_BATCH((depth_mt ? depth_mt->pitch - 1 : 0) | 606 (depthbuffer_format << 18) | 607 ((enable_hiz_ss ? 1 : 0) << 21) | /* separate stencil enable */ 608 ((enable_hiz_ss ? 1 : 0) << 22) | /* hiz enable */ 609 (BRW_TILEWALK_YMAJOR << 26) | 610 ((depth_mt ? depth_mt->tiling != I915_TILING_NONE : 1) 611 << 27) | 612 (depth_surface_type << 29)); 613 614 if (depth_mt) { 615 OUT_RELOC(depth_mt->bo, 616 I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 617 depth_offset); 618 } else { 619 OUT_BATCH(0); 620 } 621 622 OUT_BATCH(((width + tile_x - 1) << 6) | 623 ((height + tile_y - 1) << 19)); 624 OUT_BATCH(0); 625 626 if (brw->is_g4x || brw->gen >= 5) 627 OUT_BATCH(tile_x | (tile_y << 16)); 628 else 629 assert(tile_x == 0 && tile_y == 0); 630 631 if (brw->gen >= 6) 632 OUT_BATCH(0); 633 634 ADVANCE_BATCH(); 635 636 if (hiz || separate_stencil) { 637 /* 638 * In the 3DSTATE_DEPTH_BUFFER batch emitted above, the 'separate 639 * stencil enable' and 'hiz enable' bits were set. Therefore we must 640 * emit 3DSTATE_HIER_DEPTH_BUFFER and 3DSTATE_STENCIL_BUFFER. Even if 641 * there is no stencil buffer, 3DSTATE_STENCIL_BUFFER must be emitted; 642 * failure to do so causes hangs on gen5 and a stall on gen6. 643 */ 644 645 /* Emit hiz buffer. */ 646 if (hiz) { 647 assert(depth_mt); 648 struct intel_mipmap_tree *hiz_mt = depth_mt->hiz_buf->mt; 649 BEGIN_BATCH(3); 650 OUT_BATCH((_3DSTATE_HIER_DEPTH_BUFFER << 16) | (3 - 2)); 651 OUT_BATCH(hiz_mt->pitch - 1); 652 OUT_RELOC(hiz_mt->bo, 653 I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 654 brw->depthstencil.hiz_offset); 655 ADVANCE_BATCH(); 656 } else { 657 BEGIN_BATCH(3); 658 OUT_BATCH((_3DSTATE_HIER_DEPTH_BUFFER << 16) | (3 - 2)); 659 OUT_BATCH(0); 660 OUT_BATCH(0); 661 ADVANCE_BATCH(); 662 } 663 664 /* Emit stencil buffer. */ 665 if (separate_stencil) { 666 BEGIN_BATCH(3); 667 OUT_BATCH((_3DSTATE_STENCIL_BUFFER << 16) | (3 - 2)); 668 /* The stencil buffer has quirky pitch requirements. From Vol 2a, 669 * 11.5.6.2.1 3DSTATE_STENCIL_BUFFER, field "Surface Pitch": 670 * The pitch must be set to 2x the value computed based on width, as 671 * the stencil buffer is stored with two rows interleaved. 672 */ 673 OUT_BATCH(2 * stencil_mt->pitch - 1); 674 OUT_RELOC(stencil_mt->bo, 675 I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 676 brw->depthstencil.stencil_offset); 677 ADVANCE_BATCH(); 678 } else { 679 BEGIN_BATCH(3); 680 OUT_BATCH((_3DSTATE_STENCIL_BUFFER << 16) | (3 - 2)); 681 OUT_BATCH(0); 682 OUT_BATCH(0); 683 ADVANCE_BATCH(); 684 } 685 } 686 687 /* 688 * On Gen >= 6, emit clear params for safety. If using hiz, then clear 689 * params must be emitted. 690 * 691 * From Section 2.11.5.6.4.1 3DSTATE_CLEAR_PARAMS: 692 * 3DSTATE_CLEAR_PARAMS packet must follow the DEPTH_BUFFER_STATE packet 693 * when HiZ is enabled and the DEPTH_BUFFER_STATE changes. 694 */ 695 if (brw->gen >= 6 || hiz) { 696 BEGIN_BATCH(2); 697 OUT_BATCH(_3DSTATE_CLEAR_PARAMS << 16 | 698 GEN5_DEPTH_CLEAR_VALID | 699 (2 - 2)); 700 OUT_BATCH(depth_mt ? depth_mt->depth_clear_value : 0); 701 ADVANCE_BATCH(); 702 } 703 } 704 705 const struct brw_tracked_state brw_depthbuffer = { 706 .dirty = { 707 .mesa = _NEW_BUFFERS, 708 .brw = BRW_NEW_BATCH | 709 BRW_NEW_BLORP, 710 }, 711 .emit = brw_emit_depthbuffer, 712 }; 713 714 /** 715 * Polygon stipple packet 716 */ 717 static void 718 upload_polygon_stipple(struct brw_context *brw) 719 { 720 struct gl_context *ctx = &brw->ctx; 721 GLuint i; 722 723 /* _NEW_POLYGON */ 724 if (!ctx->Polygon.StippleFlag) 725 return; 726 727 BEGIN_BATCH(33); 728 OUT_BATCH(_3DSTATE_POLY_STIPPLE_PATTERN << 16 | (33 - 2)); 729 730 /* Polygon stipple is provided in OpenGL order, i.e. bottom 731 * row first. If we're rendering to a window (i.e. the 732 * default frame buffer object, 0), then we need to invert 733 * it to match our pixel layout. But if we're rendering 734 * to a FBO (i.e. any named frame buffer object), we *don't* 735 * need to invert - we already match the layout. 736 */ 737 if (_mesa_is_winsys_fbo(ctx->DrawBuffer)) { 738 for (i = 0; i < 32; i++) 739 OUT_BATCH(ctx->PolygonStipple[31 - i]); /* invert */ 740 } else { 741 for (i = 0; i < 32; i++) 742 OUT_BATCH(ctx->PolygonStipple[i]); 743 } 744 ADVANCE_BATCH(); 745 } 746 747 const struct brw_tracked_state brw_polygon_stipple = { 748 .dirty = { 749 .mesa = _NEW_POLYGON | 750 _NEW_POLYGONSTIPPLE, 751 .brw = BRW_NEW_CONTEXT, 752 }, 753 .emit = upload_polygon_stipple 754 }; 755 756 /** 757 * Polygon stipple offset packet 758 */ 759 static void 760 upload_polygon_stipple_offset(struct brw_context *brw) 761 { 762 struct gl_context *ctx = &brw->ctx; 763 764 /* _NEW_POLYGON */ 765 if (!ctx->Polygon.StippleFlag) 766 return; 767 768 BEGIN_BATCH(2); 769 OUT_BATCH(_3DSTATE_POLY_STIPPLE_OFFSET << 16 | (2-2)); 770 771 /* _NEW_BUFFERS 772 * 773 * If we're drawing to a system window we have to invert the Y axis 774 * in order to match the OpenGL pixel coordinate system, and our 775 * offset must be matched to the window position. If we're drawing 776 * to a user-created FBO then our native pixel coordinate system 777 * works just fine, and there's no window system to worry about. 778 */ 779 if (_mesa_is_winsys_fbo(ctx->DrawBuffer)) 780 OUT_BATCH((32 - (_mesa_geometric_height(ctx->DrawBuffer) & 31)) & 31); 781 else 782 OUT_BATCH(0); 783 ADVANCE_BATCH(); 784 } 785 786 const struct brw_tracked_state brw_polygon_stipple_offset = { 787 .dirty = { 788 .mesa = _NEW_BUFFERS | 789 _NEW_POLYGON, 790 .brw = BRW_NEW_CONTEXT, 791 }, 792 .emit = upload_polygon_stipple_offset 793 }; 794 795 /** 796 * Line stipple packet 797 */ 798 static void 799 upload_line_stipple(struct brw_context *brw) 800 { 801 struct gl_context *ctx = &brw->ctx; 802 GLfloat tmp; 803 GLint tmpi; 804 805 if (!ctx->Line.StippleFlag) 806 return; 807 808 BEGIN_BATCH(3); 809 OUT_BATCH(_3DSTATE_LINE_STIPPLE_PATTERN << 16 | (3 - 2)); 810 OUT_BATCH(ctx->Line.StipplePattern); 811 812 if (brw->gen >= 7) { 813 /* in U1.16 */ 814 tmp = 1.0f / ctx->Line.StippleFactor; 815 tmpi = tmp * (1<<16); 816 OUT_BATCH(tmpi << 15 | ctx->Line.StippleFactor); 817 } else { 818 /* in U1.13 */ 819 tmp = 1.0f / ctx->Line.StippleFactor; 820 tmpi = tmp * (1<<13); 821 OUT_BATCH(tmpi << 16 | ctx->Line.StippleFactor); 822 } 823 824 ADVANCE_BATCH(); 825 } 826 827 const struct brw_tracked_state brw_line_stipple = { 828 .dirty = { 829 .mesa = _NEW_LINE, 830 .brw = BRW_NEW_CONTEXT, 831 }, 832 .emit = upload_line_stipple 833 }; 834 835 void 836 brw_emit_select_pipeline(struct brw_context *brw, enum brw_pipeline pipeline) 837 { 838 const bool is_965 = brw->gen == 4 && !brw->is_g4x; 839 const uint32_t _3DSTATE_PIPELINE_SELECT = 840 is_965 ? CMD_PIPELINE_SELECT_965 : CMD_PIPELINE_SELECT_GM45; 841 842 if (brw->use_resource_streamer && pipeline != BRW_RENDER_PIPELINE) { 843 /* From "BXML GT MI vol1a GPU Overview [Instruction] 844 * PIPELINE_SELECT [DevBWR+]": 845 * 846 * Project: HSW, BDW, CHV, SKL, BXT 847 * 848 * Hardware Binding Tables are only supported for 3D 849 * workloads. Resource streamer must be enabled only for 3D 850 * workloads. Resource streamer must be disabled for Media and GPGPU 851 * workloads. 852 */ 853 BEGIN_BATCH(1); 854 OUT_BATCH(MI_RS_CONTROL | 0); 855 ADVANCE_BATCH(); 856 857 gen7_disable_hw_binding_tables(brw); 858 859 /* XXX - Disable gather constant pool too when we start using it. */ 860 } 861 862 if (brw->gen >= 8 && brw->gen < 10) { 863 /* From the Broadwell PRM, Volume 2a: Instructions, PIPELINE_SELECT: 864 * 865 * Software must clear the COLOR_CALC_STATE Valid field in 866 * 3DSTATE_CC_STATE_POINTERS command prior to send a PIPELINE_SELECT 867 * with Pipeline Select set to GPGPU. 868 * 869 * The internal hardware docs recommend the same workaround for Gen9 870 * hardware too. 871 */ 872 if (pipeline == BRW_COMPUTE_PIPELINE) { 873 BEGIN_BATCH(2); 874 OUT_BATCH(_3DSTATE_CC_STATE_POINTERS << 16 | (2 - 2)); 875 OUT_BATCH(0); 876 ADVANCE_BATCH(); 877 878 brw->ctx.NewDriverState |= BRW_NEW_CC_STATE; 879 } 880 } 881 882 if (brw->gen >= 6) { 883 /* From "BXML GT MI vol1a GPU Overview [Instruction] 884 * PIPELINE_SELECT [DevBWR+]": 885 * 886 * Project: DEVSNB+ 887 * 888 * Software must ensure all the write caches are flushed through a 889 * stalling PIPE_CONTROL command followed by another PIPE_CONTROL 890 * command to invalidate read only caches prior to programming 891 * MI_PIPELINE_SELECT command to change the Pipeline Select Mode. 892 */ 893 const unsigned dc_flush = 894 brw->gen >= 7 ? PIPE_CONTROL_DATA_CACHE_FLUSH : 0; 895 896 brw_emit_pipe_control_flush(brw, 897 PIPE_CONTROL_RENDER_TARGET_FLUSH | 898 PIPE_CONTROL_DEPTH_CACHE_FLUSH | 899 dc_flush | 900 PIPE_CONTROL_NO_WRITE | 901 PIPE_CONTROL_CS_STALL); 902 903 brw_emit_pipe_control_flush(brw, 904 PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE | 905 PIPE_CONTROL_CONST_CACHE_INVALIDATE | 906 PIPE_CONTROL_STATE_CACHE_INVALIDATE | 907 PIPE_CONTROL_INSTRUCTION_INVALIDATE | 908 PIPE_CONTROL_NO_WRITE); 909 910 } else { 911 /* From "BXML GT MI vol1a GPU Overview [Instruction] 912 * PIPELINE_SELECT [DevBWR+]": 913 * 914 * Project: PRE-DEVSNB 915 * 916 * Software must ensure the current pipeline is flushed via an 917 * MI_FLUSH or PIPE_CONTROL prior to the execution of PIPELINE_SELECT. 918 */ 919 BEGIN_BATCH(1); 920 OUT_BATCH(MI_FLUSH); 921 ADVANCE_BATCH(); 922 } 923 924 /* Select the pipeline */ 925 BEGIN_BATCH(1); 926 OUT_BATCH(_3DSTATE_PIPELINE_SELECT << 16 | 927 (brw->gen >= 9 ? (3 << 8) : 0) | 928 (pipeline == BRW_COMPUTE_PIPELINE ? 2 : 0)); 929 ADVANCE_BATCH(); 930 931 if (brw->gen == 7 && !brw->is_haswell && 932 pipeline == BRW_RENDER_PIPELINE) { 933 /* From "BXML GT MI vol1a GPU Overview [Instruction] 934 * PIPELINE_SELECT [DevBWR+]": 935 * 936 * Project: DEVIVB, DEVHSW:GT3:A0 937 * 938 * Software must send a pipe_control with a CS stall and a post sync 939 * operation and then a dummy DRAW after every MI_SET_CONTEXT and 940 * after any PIPELINE_SELECT that is enabling 3D mode. 941 */ 942 gen7_emit_cs_stall_flush(brw); 943 944 BEGIN_BATCH(7); 945 OUT_BATCH(CMD_3D_PRIM << 16 | (7 - 2)); 946 OUT_BATCH(_3DPRIM_POINTLIST); 947 OUT_BATCH(0); 948 OUT_BATCH(0); 949 OUT_BATCH(0); 950 OUT_BATCH(0); 951 OUT_BATCH(0); 952 ADVANCE_BATCH(); 953 } 954 955 if (brw->use_resource_streamer && pipeline == BRW_RENDER_PIPELINE) { 956 /* From "BXML GT MI vol1a GPU Overview [Instruction] 957 * PIPELINE_SELECT [DevBWR+]": 958 * 959 * Project: HSW, BDW, CHV, SKL, BXT 960 * 961 * Hardware Binding Tables are only supported for 3D 962 * workloads. Resource streamer must be enabled only for 3D 963 * workloads. Resource streamer must be disabled for Media and GPGPU 964 * workloads. 965 */ 966 BEGIN_BATCH(1); 967 OUT_BATCH(MI_RS_CONTROL | 1); 968 ADVANCE_BATCH(); 969 970 gen7_enable_hw_binding_tables(brw); 971 972 /* XXX - Re-enable gather constant pool here. */ 973 } 974 } 975 976 /** 977 * Misc invariant state packets 978 */ 979 void 980 brw_upload_invariant_state(struct brw_context *brw) 981 { 982 const bool is_965 = brw->gen == 4 && !brw->is_g4x; 983 984 brw_emit_select_pipeline(brw, BRW_RENDER_PIPELINE); 985 brw->last_pipeline = BRW_RENDER_PIPELINE; 986 987 if (brw->gen >= 8) { 988 BEGIN_BATCH(3); 989 OUT_BATCH(CMD_STATE_SIP << 16 | (3 - 2)); 990 OUT_BATCH(0); 991 OUT_BATCH(0); 992 ADVANCE_BATCH(); 993 } else { 994 BEGIN_BATCH(2); 995 OUT_BATCH(CMD_STATE_SIP << 16 | (2 - 2)); 996 OUT_BATCH(0); 997 ADVANCE_BATCH(); 998 } 999 1000 /* Original Gen4 doesn't have 3DSTATE_AA_LINE_PARAMETERS. */ 1001 if (!is_965) { 1002 BEGIN_BATCH(3); 1003 OUT_BATCH(_3DSTATE_AA_LINE_PARAMETERS << 16 | (3 - 2)); 1004 /* use legacy aa line coverage computation */ 1005 OUT_BATCH(0); 1006 OUT_BATCH(0); 1007 ADVANCE_BATCH(); 1008 } 1009 1010 const uint32_t _3DSTATE_VF_STATISTICS = 1011 is_965 ? GEN4_3DSTATE_VF_STATISTICS : GM45_3DSTATE_VF_STATISTICS; 1012 BEGIN_BATCH(1); 1013 OUT_BATCH(_3DSTATE_VF_STATISTICS << 16 | 1); 1014 ADVANCE_BATCH(); 1015 } 1016 1017 const struct brw_tracked_state brw_invariant_state = { 1018 .dirty = { 1019 .mesa = 0, 1020 .brw = BRW_NEW_BLORP | 1021 BRW_NEW_CONTEXT, 1022 }, 1023 .emit = brw_upload_invariant_state 1024 }; 1025 1026 /** 1027 * Define the base addresses which some state is referenced from. 1028 * 1029 * This allows us to avoid having to emit relocations for the objects, 1030 * and is actually required for binding table pointers on gen6. 1031 * 1032 * Surface state base address covers binding table pointers and 1033 * surface state objects, but not the surfaces that the surface state 1034 * objects point to. 1035 */ 1036 void 1037 brw_upload_state_base_address(struct brw_context *brw) 1038 { 1039 if (brw->batch.state_base_address_emitted) 1040 return; 1041 1042 /* FINISHME: According to section 3.6.1 "STATE_BASE_ADDRESS" of 1043 * vol1a of the G45 PRM, MI_FLUSH with the ISC invalidate should be 1044 * programmed prior to STATE_BASE_ADDRESS. 1045 * 1046 * However, given that the instruction SBA (general state base 1047 * address) on this chipset is always set to 0 across X and GL, 1048 * maybe this isn't required for us in particular. 1049 */ 1050 1051 if (brw->gen >= 8) { 1052 uint32_t mocs_wb = brw->gen >= 9 ? SKL_MOCS_WB : BDW_MOCS_WB; 1053 int pkt_len = brw->gen >= 9 ? 19 : 16; 1054 1055 BEGIN_BATCH(pkt_len); 1056 OUT_BATCH(CMD_STATE_BASE_ADDRESS << 16 | (pkt_len - 2)); 1057 /* General state base address: stateless DP read/write requests */ 1058 OUT_BATCH(mocs_wb << 4 | 1); 1059 OUT_BATCH(0); 1060 OUT_BATCH(mocs_wb << 16); 1061 /* Surface state base address: */ 1062 OUT_RELOC64(brw->batch.bo, I915_GEM_DOMAIN_SAMPLER, 0, 1063 mocs_wb << 4 | 1); 1064 /* Dynamic state base address: */ 1065 OUT_RELOC64(brw->batch.bo, 1066 I915_GEM_DOMAIN_RENDER | I915_GEM_DOMAIN_INSTRUCTION, 0, 1067 mocs_wb << 4 | 1); 1068 /* Indirect object base address: MEDIA_OBJECT data */ 1069 OUT_BATCH(mocs_wb << 4 | 1); 1070 OUT_BATCH(0); 1071 /* Instruction base address: shader kernels (incl. SIP) */ 1072 OUT_RELOC64(brw->cache.bo, I915_GEM_DOMAIN_INSTRUCTION, 0, 1073 mocs_wb << 4 | 1); 1074 1075 /* General state buffer size */ 1076 OUT_BATCH(0xfffff001); 1077 /* Dynamic state buffer size */ 1078 OUT_BATCH(ALIGN(brw->batch.bo->size, 4096) | 1); 1079 /* Indirect object upper bound */ 1080 OUT_BATCH(0xfffff001); 1081 /* Instruction access upper bound */ 1082 OUT_BATCH(ALIGN(brw->cache.bo->size, 4096) | 1); 1083 if (brw->gen >= 9) { 1084 OUT_BATCH(1); 1085 OUT_BATCH(0); 1086 OUT_BATCH(0); 1087 } 1088 ADVANCE_BATCH(); 1089 } else if (brw->gen >= 6) { 1090 uint8_t mocs = brw->gen == 7 ? GEN7_MOCS_L3 : 0; 1091 1092 BEGIN_BATCH(10); 1093 OUT_BATCH(CMD_STATE_BASE_ADDRESS << 16 | (10 - 2)); 1094 OUT_BATCH(mocs << 8 | /* General State Memory Object Control State */ 1095 mocs << 4 | /* Stateless Data Port Access Memory Object Control State */ 1096 1); /* General State Base Address Modify Enable */ 1097 /* Surface state base address: 1098 * BINDING_TABLE_STATE 1099 * SURFACE_STATE 1100 */ 1101 OUT_RELOC(brw->batch.bo, I915_GEM_DOMAIN_SAMPLER, 0, 1); 1102 /* Dynamic state base address: 1103 * SAMPLER_STATE 1104 * SAMPLER_BORDER_COLOR_STATE 1105 * CLIP, SF, WM/CC viewport state 1106 * COLOR_CALC_STATE 1107 * DEPTH_STENCIL_STATE 1108 * BLEND_STATE 1109 * Push constants (when INSTPM: CONSTANT_BUFFER Address Offset 1110 * Disable is clear, which we rely on) 1111 */ 1112 OUT_RELOC(brw->batch.bo, (I915_GEM_DOMAIN_RENDER | 1113 I915_GEM_DOMAIN_INSTRUCTION), 0, 1); 1114 1115 OUT_BATCH(1); /* Indirect object base address: MEDIA_OBJECT data */ 1116 OUT_RELOC(brw->cache.bo, I915_GEM_DOMAIN_INSTRUCTION, 0, 1117 1); /* Instruction base address: shader kernels (incl. SIP) */ 1118 1119 OUT_BATCH(1); /* General state upper bound */ 1120 /* Dynamic state upper bound. Although the documentation says that 1121 * programming it to zero will cause it to be ignored, that is a lie. 1122 * If this isn't programmed to a real bound, the sampler border color 1123 * pointer is rejected, causing border color to mysteriously fail. 1124 */ 1125 OUT_BATCH(0xfffff001); 1126 OUT_BATCH(1); /* Indirect object upper bound */ 1127 OUT_BATCH(1); /* Instruction access upper bound */ 1128 ADVANCE_BATCH(); 1129 } else if (brw->gen == 5) { 1130 BEGIN_BATCH(8); 1131 OUT_BATCH(CMD_STATE_BASE_ADDRESS << 16 | (8 - 2)); 1132 OUT_BATCH(1); /* General state base address */ 1133 OUT_RELOC(brw->batch.bo, I915_GEM_DOMAIN_SAMPLER, 0, 1134 1); /* Surface state base address */ 1135 OUT_BATCH(1); /* Indirect object base address */ 1136 OUT_RELOC(brw->cache.bo, I915_GEM_DOMAIN_INSTRUCTION, 0, 1137 1); /* Instruction base address */ 1138 OUT_BATCH(0xfffff001); /* General state upper bound */ 1139 OUT_BATCH(1); /* Indirect object upper bound */ 1140 OUT_BATCH(1); /* Instruction access upper bound */ 1141 ADVANCE_BATCH(); 1142 } else { 1143 BEGIN_BATCH(6); 1144 OUT_BATCH(CMD_STATE_BASE_ADDRESS << 16 | (6 - 2)); 1145 OUT_BATCH(1); /* General state base address */ 1146 OUT_RELOC(brw->batch.bo, I915_GEM_DOMAIN_SAMPLER, 0, 1147 1); /* Surface state base address */ 1148 OUT_BATCH(1); /* Indirect object base address */ 1149 OUT_BATCH(1); /* General state upper bound */ 1150 OUT_BATCH(1); /* Indirect object upper bound */ 1151 ADVANCE_BATCH(); 1152 } 1153 1154 /* According to section 3.6.1 of VOL1 of the 965 PRM, 1155 * STATE_BASE_ADDRESS updates require a reissue of: 1156 * 1157 * 3DSTATE_PIPELINE_POINTERS 1158 * 3DSTATE_BINDING_TABLE_POINTERS 1159 * MEDIA_STATE_POINTERS 1160 * 1161 * and this continues through Ironlake. The Sandy Bridge PRM, vol 1162 * 1 part 1 says that the folowing packets must be reissued: 1163 * 1164 * 3DSTATE_CC_POINTERS 1165 * 3DSTATE_BINDING_TABLE_POINTERS 1166 * 3DSTATE_SAMPLER_STATE_POINTERS 1167 * 3DSTATE_VIEWPORT_STATE_POINTERS 1168 * MEDIA_STATE_POINTERS 1169 * 1170 * Those are always reissued following SBA updates anyway (new 1171 * batch time), except in the case of the program cache BO 1172 * changing. Having a separate state flag makes the sequence more 1173 * obvious. 1174 */ 1175 1176 brw->ctx.NewDriverState |= BRW_NEW_STATE_BASE_ADDRESS; 1177 brw->batch.state_base_address_emitted = true; 1178 } 1179
