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Message-ID: <202312172053.xbjFdzIY-lkp@intel.com>
Date: Sun, 17 Dec 2023 21:04:50 +0800
From: kernel test robot <lkp@...el.com>
To: Alex Deucher <alexander.deucher@....com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
Luben Tuikov <luben.tuikov@....com>
Subject: drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn30/display_rq_dlg_calc_30.c:700:34:
sparse: sparse: dubious: !x & y
Hi Alex,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 3b8a9b2e6809d281890dd0a1102dc14d2cd11caf
commit: 20f2ffe504728612d7b0c34e4f8280e34251e704 drm/amdgpu: fold CONFIG_DRM_AMD_DC_DCN3* into CONFIG_DRM_AMD_DC_DCN (v3)
date: 3 years, 1 month ago
config: x86_64-randconfig-121-20231101 (https://download.01.org/0day-ci/archive/20231217/202312172053.xbjFdzIY-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231217/202312172053.xbjFdzIY-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312172053.xbjFdzIY-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn30/display_rq_dlg_calc_30.c:700:34: sparse: sparse: dubious: !x & y
vim +700 drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn30/display_rq_dlg_calc_30.c
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 349
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 350 static void get_meta_and_pte_attr(struct display_mode_lib *mode_lib,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 351 display_data_rq_dlg_params_st *rq_dlg_param,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 352 display_data_rq_misc_params_st *rq_misc_param,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 353 display_data_rq_sizing_params_st *rq_sizing_param,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 354 unsigned int vp_width,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 355 unsigned int vp_height,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 356 unsigned int data_pitch,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 357 unsigned int meta_pitch,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 358 unsigned int source_format,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 359 unsigned int tiling,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 360 unsigned int macro_tile_size,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 361 unsigned int source_scan,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 362 unsigned int hostvm_enable,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 363 unsigned int is_chroma,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 364 unsigned int surface_height)
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 365 {
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 366 bool surf_linear = (tiling == dm_sw_linear);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 367 bool surf_vert = (source_scan == dm_vert);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 368
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 369 unsigned int bytes_per_element = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 370 unsigned int bytes_per_element_y = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 371 unsigned int bytes_per_element_c = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 372
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 373 unsigned int blk256_width = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 374 unsigned int blk256_height = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 375
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 376 unsigned int blk256_width_y = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 377 unsigned int blk256_height_y = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 378 unsigned int blk256_width_c = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 379 unsigned int blk256_height_c = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 380 unsigned int log2_bytes_per_element = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 381 unsigned int log2_blk256_width = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 382 unsigned int log2_blk256_height = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 383 unsigned int blk_bytes = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 384 unsigned int log2_blk_bytes = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 385 unsigned int log2_blk_height = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 386 unsigned int log2_blk_width = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 387 unsigned int log2_meta_req_bytes = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 388 unsigned int log2_meta_req_height = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 389 unsigned int log2_meta_req_width = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 390 unsigned int meta_req_width = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 391 unsigned int meta_req_height = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 392 unsigned int log2_meta_row_height = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 393 unsigned int meta_row_width_ub = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 394 unsigned int log2_meta_chunk_bytes = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 395 unsigned int log2_meta_chunk_height = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 396
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 397 //full sized meta chunk width in unit of data elements
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 398 unsigned int log2_meta_chunk_width = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 399 unsigned int log2_min_meta_chunk_bytes = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 400 unsigned int min_meta_chunk_width = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 401 unsigned int meta_chunk_width = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 402 unsigned int meta_chunk_per_row_int = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 403 unsigned int meta_row_remainder = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 404 unsigned int meta_chunk_threshold = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 405 unsigned int meta_blk_bytes = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 406 unsigned int meta_blk_height = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 407 unsigned int meta_blk_width = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 408 unsigned int meta_surface_bytes = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 409 unsigned int vmpg_bytes = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 410 unsigned int meta_pte_req_per_frame_ub = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 411 unsigned int meta_pte_bytes_per_frame_ub = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 412 const unsigned int log2_vmpg_bytes = dml_log2(mode_lib->soc.gpuvm_min_page_size_bytes);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 413 const bool dual_plane_en = is_dual_plane((enum source_format_class)(source_format));
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 414 const unsigned int dpte_buf_in_pte_reqs = dual_plane_en ?
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 415 (is_chroma ? mode_lib->ip.dpte_buffer_size_in_pte_reqs_chroma : mode_lib->ip.dpte_buffer_size_in_pte_reqs_luma)
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 416 : (mode_lib->ip.dpte_buffer_size_in_pte_reqs_luma + mode_lib->ip.dpte_buffer_size_in_pte_reqs_chroma);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 417
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 418 unsigned int log2_vmpg_height = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 419 unsigned int log2_vmpg_width = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 420 unsigned int log2_dpte_req_height_ptes = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 421 unsigned int log2_dpte_req_height = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 422 unsigned int log2_dpte_req_width = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 423 unsigned int log2_dpte_row_height_linear = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 424 unsigned int log2_dpte_row_height = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 425 unsigned int log2_dpte_group_width = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 426 unsigned int dpte_row_width_ub = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 427 unsigned int dpte_req_height = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 428 unsigned int dpte_req_width = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 429 unsigned int dpte_group_width = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 430 unsigned int log2_dpte_group_bytes = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 431 unsigned int log2_dpte_group_length = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 432 double byte_per_pixel_det_y = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 433 double byte_per_pixel_det_c = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 434
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 435 CalculateBytePerPixelAnd256BBlockSizes((enum source_format_class)(source_format),
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 436 (enum dm_swizzle_mode)(tiling),
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 437 &bytes_per_element_y,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 438 &bytes_per_element_c,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 439 &byte_per_pixel_det_y,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 440 &byte_per_pixel_det_c,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 441 &blk256_height_y,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 442 &blk256_height_c,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 443 &blk256_width_y,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 444 &blk256_width_c);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 445
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 446 if (!is_chroma) {
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 447 blk256_width = blk256_width_y;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 448 blk256_height = blk256_height_y;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 449 bytes_per_element = bytes_per_element_y;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 450 } else {
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 451 blk256_width = blk256_width_c;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 452 blk256_height = blk256_height_c;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 453 bytes_per_element = bytes_per_element_c;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 454 }
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 455
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 456 log2_bytes_per_element = dml_log2(bytes_per_element);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 457
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 458 dml_print("DML_DLG: %s: surf_linear = %d\n", __func__, surf_linear);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 459 dml_print("DML_DLG: %s: surf_vert = %d\n", __func__, surf_vert);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 460 dml_print("DML_DLG: %s: blk256_width = %d\n", __func__, blk256_width);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 461 dml_print("DML_DLG: %s: blk256_height = %d\n", __func__, blk256_height);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 462
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 463 log2_blk256_width = dml_log2((double)blk256_width);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 464 log2_blk256_height = dml_log2((double)blk256_height);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 465 blk_bytes = surf_linear ?
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 466 256 : get_blk_size_bytes((enum source_macro_tile_size) macro_tile_size);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 467 log2_blk_bytes = dml_log2((double)blk_bytes);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 468 log2_blk_height = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 469 log2_blk_width = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 470
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 471 // remember log rule
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 472 // "+" in log is multiply
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 473 // "-" in log is divide
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 474 // "/2" is like square root
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 475 // blk is vertical biased
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 476 if (tiling != dm_sw_linear)
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 477 log2_blk_height = log2_blk256_height
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 478 + dml_ceil((double)(log2_blk_bytes - 8) / 2.0, 1);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 479 else
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 480 log2_blk_height = 0; // blk height of 1
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 481
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 482 log2_blk_width = log2_blk_bytes - log2_bytes_per_element - log2_blk_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 483
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 484 if (!surf_vert) {
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 485 int unsigned temp = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 486
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 487 temp = dml_round_to_multiple(vp_width - 1, blk256_width, 1) + blk256_width;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 488 if (data_pitch < blk256_width) {
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 489 dml_print("WARNING: DML_DLG: %s: swath_size calculation ignoring data_pitch=%u < blk256_width=%u\n", __func__, data_pitch, blk256_width);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 490 } else {
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 491 if (temp > data_pitch) {
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 492 if (data_pitch >= vp_width)
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 493 temp = data_pitch;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 494 else
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 495 dml_print("WARNING: DML_DLG: %s: swath_size calculation ignoring data_pitch=%u < vp_width=%u\n", __func__, data_pitch, vp_width);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 496 }
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 497 }
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 498 rq_dlg_param->swath_width_ub = temp;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 499 rq_dlg_param->req_per_swath_ub = temp >> log2_blk256_width;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 500 } else {
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 501 int unsigned temp = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 502
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 503 temp = dml_round_to_multiple(vp_height - 1, blk256_height, 1) + blk256_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 504 if (surface_height < blk256_height) {
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 505 dml_print("WARNING: DML_DLG: %s swath_size calculation ignored surface_height=%u < blk256_height=%u\n", __func__, surface_height, blk256_height);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 506 } else {
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 507 if (temp > surface_height) {
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 508 if (surface_height >= vp_height)
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 509 temp = surface_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 510 else
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 511 dml_print("WARNING: DML_DLG: %s swath_size calculation ignored surface_height=%u < vp_height=%u\n", __func__, surface_height, vp_height);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 512 }
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 513 }
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 514 rq_dlg_param->swath_width_ub = temp;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 515 rq_dlg_param->req_per_swath_ub = temp >> log2_blk256_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 516 }
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 517
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 518 if (!surf_vert)
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 519 rq_misc_param->full_swath_bytes = rq_dlg_param->swath_width_ub * blk256_height
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 520 * bytes_per_element;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 521 else
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 522 rq_misc_param->full_swath_bytes = rq_dlg_param->swath_width_ub * blk256_width
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 523 * bytes_per_element;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 524
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 525 rq_misc_param->blk256_height = blk256_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 526 rq_misc_param->blk256_width = blk256_width;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 527
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 528 // -------
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 529 // meta
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 530 // -------
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 531 log2_meta_req_bytes = 6; // meta request is 64b and is 8x8byte meta element
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 532
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 533 // each 64b meta request for dcn is 8x8 meta elements and
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 534 // a meta element covers one 256b block of the the data surface.
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 535 log2_meta_req_height = log2_blk256_height + 3; // meta req is 8x8 byte, each byte represent 1 blk256
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 536 log2_meta_req_width = log2_meta_req_bytes + 8 - log2_bytes_per_element
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 537 - log2_meta_req_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 538 meta_req_width = 1 << log2_meta_req_width;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 539 meta_req_height = 1 << log2_meta_req_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 540 log2_meta_row_height = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 541 meta_row_width_ub = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 542
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 543 // the dimensions of a meta row are meta_row_width x meta_row_height in elements.
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 544 // calculate upper bound of the meta_row_width
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 545 if (!surf_vert) {
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 546 log2_meta_row_height = log2_meta_req_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 547 meta_row_width_ub = dml_round_to_multiple(vp_width - 1, meta_req_width, 1)
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 548 + meta_req_width;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 549 rq_dlg_param->meta_req_per_row_ub = meta_row_width_ub / meta_req_width;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 550 } else {
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 551 log2_meta_row_height = log2_meta_req_width;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 552 meta_row_width_ub = dml_round_to_multiple(vp_height - 1, meta_req_height, 1)
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 553 + meta_req_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 554 rq_dlg_param->meta_req_per_row_ub = meta_row_width_ub / meta_req_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 555 }
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 556 rq_dlg_param->meta_bytes_per_row_ub = rq_dlg_param->meta_req_per_row_ub * 64;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 557
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 558 rq_dlg_param->meta_row_height = 1 << log2_meta_row_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 559
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 560 log2_meta_chunk_bytes = dml_log2(rq_sizing_param->meta_chunk_bytes);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 561 log2_meta_chunk_height = log2_meta_row_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 562
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 563 //full sized meta chunk width in unit of data elements
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 564 log2_meta_chunk_width = log2_meta_chunk_bytes + 8 - log2_bytes_per_element
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 565 - log2_meta_chunk_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 566 log2_min_meta_chunk_bytes = dml_log2(rq_sizing_param->min_meta_chunk_bytes);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 567 min_meta_chunk_width = 1
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 568 << (log2_min_meta_chunk_bytes + 8 - log2_bytes_per_element
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 569 - log2_meta_chunk_height);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 570 meta_chunk_width = 1 << log2_meta_chunk_width;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 571 meta_chunk_per_row_int = (unsigned int)(meta_row_width_ub / meta_chunk_width);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 572 meta_row_remainder = meta_row_width_ub % meta_chunk_width;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 573 meta_chunk_threshold = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 574 meta_blk_bytes = 4096;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 575 meta_blk_height = blk256_height * 64;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 576 meta_blk_width = meta_blk_bytes * 256 / bytes_per_element / meta_blk_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 577 meta_surface_bytes = meta_pitch
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 578 * (dml_round_to_multiple(vp_height - 1, meta_blk_height, 1) + meta_blk_height)
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 579 * bytes_per_element / 256;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 580 vmpg_bytes = mode_lib->soc.gpuvm_min_page_size_bytes;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 581 meta_pte_req_per_frame_ub = (dml_round_to_multiple(meta_surface_bytes - vmpg_bytes,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 582 8 * vmpg_bytes,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 583 1) + 8 * vmpg_bytes) / (8 * vmpg_bytes);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 584 meta_pte_bytes_per_frame_ub = meta_pte_req_per_frame_ub * 64; //64B mpte request
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 585 rq_dlg_param->meta_pte_bytes_per_frame_ub = meta_pte_bytes_per_frame_ub;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 586
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 587 dml_print("DML_DLG: %s: meta_blk_height = %d\n", __func__, meta_blk_height);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 588 dml_print("DML_DLG: %s: meta_blk_width = %d\n", __func__, meta_blk_width);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 589 dml_print("DML_DLG: %s: meta_surface_bytes = %d\n", __func__, meta_surface_bytes);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 590 dml_print("DML_DLG: %s: meta_pte_req_per_frame_ub = %d\n",
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 591 __func__,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 592 meta_pte_req_per_frame_ub);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 593 dml_print("DML_DLG: %s: meta_pte_bytes_per_frame_ub = %d\n",
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 594 __func__,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 595 meta_pte_bytes_per_frame_ub);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 596
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 597 if (!surf_vert)
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 598 meta_chunk_threshold = 2 * min_meta_chunk_width - meta_req_width;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 599 else
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 600 meta_chunk_threshold = 2 * min_meta_chunk_width - meta_req_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 601
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 602 if (meta_row_remainder <= meta_chunk_threshold)
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 603 rq_dlg_param->meta_chunks_per_row_ub = meta_chunk_per_row_int + 1;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 604 else
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 605 rq_dlg_param->meta_chunks_per_row_ub = meta_chunk_per_row_int + 2;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 606
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 607 // ------
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 608 // dpte
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 609 // ------
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 610 if (surf_linear) {
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 611 log2_vmpg_height = 0; // one line high
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 612 } else {
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 613 log2_vmpg_height = (log2_vmpg_bytes - 8) / 2 + log2_blk256_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 614 }
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 615 log2_vmpg_width = log2_vmpg_bytes - log2_bytes_per_element - log2_vmpg_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 616
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 617 // only 3 possible shapes for dpte request in dimensions of ptes: 8x1, 4x2, 2x4.
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 618 if (surf_linear) { //one 64B PTE request returns 8 PTEs
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 619 log2_dpte_req_height_ptes = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 620 log2_dpte_req_width = log2_vmpg_width + 3;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 621 log2_dpte_req_height = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 622 } else if (log2_blk_bytes == 12) { //4KB tile means 4kB page size
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 623 //one 64B req gives 8x1 PTEs for 4KB tile
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 624 log2_dpte_req_height_ptes = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 625 log2_dpte_req_width = log2_blk_width + 3;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 626 log2_dpte_req_height = log2_blk_height + 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 627 } else if ((log2_blk_bytes >= 16) && (log2_vmpg_bytes == 12)) { // tile block >= 64KB
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 628 //two 64B reqs of 2x4 PTEs give 16 PTEs to cover 64KB
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 629 log2_dpte_req_height_ptes = 4;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 630 log2_dpte_req_width = log2_blk256_width + 4; // log2_64KB_width
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 631 log2_dpte_req_height = log2_blk256_height + 4; // log2_64KB_height
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 632 } else { //64KB page size and must 64KB tile block
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 633 //one 64B req gives 8x1 PTEs for 64KB tile
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 634 log2_dpte_req_height_ptes = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 635 log2_dpte_req_width = log2_blk_width + 3;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 636 log2_dpte_req_height = log2_blk_height + 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 637 }
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 638
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 639 // The dpte request dimensions in data elements is dpte_req_width x dpte_req_height
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 640 // log2_vmpg_width is how much 1 pte represent, now calculating how much a 64b pte req represent
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 641 // That depends on the pte shape (i.e. 8x1, 4x2, 2x4)
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 642 //log2_dpte_req_height = log2_vmpg_height + log2_dpte_req_height_ptes;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 643 //log2_dpte_req_width = log2_vmpg_width + log2_dpte_req_width_ptes;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 644 dpte_req_height = 1 << log2_dpte_req_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 645 dpte_req_width = 1 << log2_dpte_req_width;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 646
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 647 // calculate pitch dpte row buffer can hold
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 648 // round the result down to a power of two.
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 649 if (surf_linear) {
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 650 unsigned int dpte_row_height = 0;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 651
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 652 log2_dpte_row_height_linear = dml_floor(dml_log2(dpte_buf_in_pte_reqs * dpte_req_width / data_pitch), 1);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 653
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 654 dml_print("DML_DLG: %s: is_chroma = %d\n", __func__, is_chroma);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 655 dml_print("DML_DLG: %s: dpte_buf_in_pte_reqs = %d\n", __func__, dpte_buf_in_pte_reqs);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 656 dml_print("DML_DLG: %s: log2_dpte_row_height_linear = %d\n", __func__, log2_dpte_row_height_linear);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 657
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 658 ASSERT(log2_dpte_row_height_linear >= 3);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 659
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 660 if (log2_dpte_row_height_linear > 7)
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 661 log2_dpte_row_height_linear = 7;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 662
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 663 log2_dpte_row_height = log2_dpte_row_height_linear;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 664 // For linear, the dpte row is pitch dependent and the pte requests wrap at the pitch boundary.
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 665 // the dpte_row_width_ub is the upper bound of data_pitch*dpte_row_height in elements with this unique buffering.
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 666 dpte_row_height = 1 << log2_dpte_row_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 667 dpte_row_width_ub = dml_round_to_multiple(data_pitch * dpte_row_height - 1,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 668 dpte_req_width,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 669 1) + dpte_req_width;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 670 rq_dlg_param->dpte_req_per_row_ub = dpte_row_width_ub / dpte_req_width;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 671 } else {
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 672 // the upper bound of the dpte_row_width without dependency on viewport position follows.
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 673 // for tiled mode, row height is the same as req height and row store up to vp size upper bound
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 674 if (!surf_vert) {
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 675 log2_dpte_row_height = log2_dpte_req_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 676 dpte_row_width_ub = dml_round_to_multiple(vp_width - 1, dpte_req_width, 1)
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 677 + dpte_req_width;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 678 rq_dlg_param->dpte_req_per_row_ub = dpte_row_width_ub / dpte_req_width;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 679 } else {
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 680 log2_dpte_row_height =
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 681 (log2_blk_width < log2_dpte_req_width) ?
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 682 log2_blk_width : log2_dpte_req_width;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 683 dpte_row_width_ub = dml_round_to_multiple(vp_height - 1, dpte_req_height, 1)
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 684 + dpte_req_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 685 rq_dlg_param->dpte_req_per_row_ub = dpte_row_width_ub / dpte_req_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 686 }
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 687 }
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 688 if (log2_blk_bytes >= 16 && log2_vmpg_bytes == 12) // tile block >= 64KB
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 689 rq_dlg_param->dpte_bytes_per_row_ub = rq_dlg_param->dpte_req_per_row_ub * 128; //2*64B dpte request
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 690 else
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 691 rq_dlg_param->dpte_bytes_per_row_ub = rq_dlg_param->dpte_req_per_row_ub * 64; //64B dpte request
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 692
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 693 rq_dlg_param->dpte_row_height = 1 << log2_dpte_row_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 694
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 695 // the dpte_group_bytes is reduced for the specific case of vertical
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 696 // access of a tile surface that has dpte request of 8x1 ptes.
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 697 if (hostvm_enable)
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 698 rq_sizing_param->dpte_group_bytes = 512;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 699 else {
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 @700 if (!surf_linear & (log2_dpte_req_height_ptes == 0) & surf_vert) //reduced, in this case, will have page fault within a group
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 701 rq_sizing_param->dpte_group_bytes = 512;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 702 else
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 703 rq_sizing_param->dpte_group_bytes = 2048;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 704 }
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 705
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 706 //since pte request size is 64byte, the number of data pte requests per full sized group is as follows.
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 707 log2_dpte_group_bytes = dml_log2(rq_sizing_param->dpte_group_bytes);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 708 log2_dpte_group_length = log2_dpte_group_bytes - 6; //length in 64b requests
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 709
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 710 // full sized data pte group width in elements
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 711 if (!surf_vert)
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 712 log2_dpte_group_width = log2_dpte_group_length + log2_dpte_req_width;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 713 else
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 714 log2_dpte_group_width = log2_dpte_group_length + log2_dpte_req_height;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 715
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 716 //But if the tile block >=64KB and the page size is 4KB, then each dPTE request is 2*64B
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 717 if ((log2_blk_bytes >= 16) && (log2_vmpg_bytes == 12)) // tile block >= 64KB
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 718 log2_dpte_group_width = log2_dpte_group_width - 1;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 719
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 720 dpte_group_width = 1 << log2_dpte_group_width;
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 721
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 722 // since dpte groups are only aligned to dpte_req_width and not dpte_group_width,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 723 // the upper bound for the dpte groups per row is as follows.
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 724 rq_dlg_param->dpte_groups_per_row_ub = dml_ceil((double)dpte_row_width_ub / dpte_group_width,
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 725 1);
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 726 }
6725a88f88a7e9 Bhawanpreet Lakha 2020-05-21 727
:::::: The code at line 700 was first introduced by commit
:::::: 6725a88f88a7e922e91c45bf83d320487810c192 drm/amd/display: Add DCN3 DML
:::::: TO: Bhawanpreet Lakha <Bhawanpreet.Lakha@....com>
:::::: CC: Alex Deucher <alexander.deucher@....com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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