1// SPDX-License-Identifier: GPL-2.0 OR MIT
   2/*
   3 * Copyright 2015-2022 Advanced Micro Devices, Inc.
   4 *
   5 * Permission is hereby granted, free of charge, to any person obtaining a
   6 * copy of this software and associated documentation files (the "Software"),
   7 * to deal in the Software without restriction, including without limitation
   8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9 * and/or sell copies of the Software, and to permit persons to whom the
  10 * Software is furnished to do so, subject to the following conditions:
  11 *
  12 * The above copyright notice and this permission notice shall be included in
  13 * all copies or substantial portions of the Software.
  14 *
  15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  21 * OTHER DEALINGS IN THE SOFTWARE.
  22 */
  23
  24#include <linux/pci.h>
  25#include <linux/acpi.h>
  26#include "kfd_crat.h"
  27#include "kfd_priv.h"
  28#include "kfd_topology.h"
  29#include "amdgpu.h"
  30#include "amdgpu_amdkfd.h"
  31
  32/* GPU Processor ID base for dGPUs for which VCRAT needs to be created.
  33 * GPU processor ID are expressed with Bit[31]=1.
  34 * The base is set to 0x8000_0000 + 0x1000 to avoid collision with GPU IDs
  35 * used in the CRAT.
  36 */
  37static uint32_t gpu_processor_id_low = 0x80001000;
  38
  39/* Return the next available gpu_processor_id and increment it for next GPU
  40 *	@total_cu_count - Total CUs present in the GPU including ones
  41 *			  masked off
  42 */
  43static inline unsigned int get_and_inc_gpu_processor_id(
  44				unsigned int total_cu_count)
  45{
  46	int current_id = gpu_processor_id_low;
  47
  48	gpu_processor_id_low += total_cu_count;
  49	return current_id;
  50}
  51
 
 
 
 
 
 
 
 
 
 
  52
  53static struct kfd_gpu_cache_info kaveri_cache_info[] = {
  54	{
  55		/* TCP L1 Cache per CU */
  56		.cache_size = 16,
  57		.cache_level = 1,
  58		.flags = (CRAT_CACHE_FLAGS_ENABLED |
  59				CRAT_CACHE_FLAGS_DATA_CACHE |
  60				CRAT_CACHE_FLAGS_SIMD_CACHE),
  61		.num_cu_shared = 1,
 
  62	},
  63	{
  64		/* Scalar L1 Instruction Cache (in SQC module) per bank */
  65		.cache_size = 16,
  66		.cache_level = 1,
  67		.flags = (CRAT_CACHE_FLAGS_ENABLED |
  68				CRAT_CACHE_FLAGS_INST_CACHE |
  69				CRAT_CACHE_FLAGS_SIMD_CACHE),
  70		.num_cu_shared = 2,
  71	},
  72	{
  73		/* Scalar L1 Data Cache (in SQC module) per bank */
  74		.cache_size = 8,
  75		.cache_level = 1,
  76		.flags = (CRAT_CACHE_FLAGS_ENABLED |
  77				CRAT_CACHE_FLAGS_DATA_CACHE |
  78				CRAT_CACHE_FLAGS_SIMD_CACHE),
  79		.num_cu_shared = 2,
  80	},
  81
  82	/* TODO: Add L2 Cache information */
  83};
  84
  85
  86static struct kfd_gpu_cache_info carrizo_cache_info[] = {
  87	{
  88		/* TCP L1 Cache per CU */
  89		.cache_size = 16,
  90		.cache_level = 1,
  91		.flags = (CRAT_CACHE_FLAGS_ENABLED |
  92				CRAT_CACHE_FLAGS_DATA_CACHE |
  93				CRAT_CACHE_FLAGS_SIMD_CACHE),
  94		.num_cu_shared = 1,
  95	},
  96	{
  97		/* Scalar L1 Instruction Cache (in SQC module) per bank */
  98		.cache_size = 8,
  99		.cache_level = 1,
 100		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 101				CRAT_CACHE_FLAGS_INST_CACHE |
 102				CRAT_CACHE_FLAGS_SIMD_CACHE),
 103		.num_cu_shared = 4,
 104	},
 105	{
 106		/* Scalar L1 Data Cache (in SQC module) per bank. */
 107		.cache_size = 4,
 108		.cache_level = 1,
 109		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 110				CRAT_CACHE_FLAGS_DATA_CACHE |
 111				CRAT_CACHE_FLAGS_SIMD_CACHE),
 112		.num_cu_shared = 4,
 113	},
 114
 115	/* TODO: Add L2 Cache information */
 116};
 117
 
 
 
 118#define hawaii_cache_info kaveri_cache_info
 119#define tonga_cache_info carrizo_cache_info
 120#define fiji_cache_info  carrizo_cache_info
 121#define polaris10_cache_info carrizo_cache_info
 122#define polaris11_cache_info carrizo_cache_info
 123#define polaris12_cache_info carrizo_cache_info
 124#define vegam_cache_info carrizo_cache_info
 125
 126/* NOTE: L1 cache information has been updated and L2/L3
 127 * cache information has been added for Vega10 and
 128 * newer ASICs. The unit for cache_size is KiB.
 129 * In future,  check & update cache details
 130 * for every new ASIC is required.
 131 */
 132
 133static struct kfd_gpu_cache_info vega10_cache_info[] = {
 134	{
 135		/* TCP L1 Cache per CU */
 136		.cache_size = 16,
 137		.cache_level = 1,
 138		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 139				CRAT_CACHE_FLAGS_DATA_CACHE |
 140				CRAT_CACHE_FLAGS_SIMD_CACHE),
 141		.num_cu_shared = 1,
 142	},
 143	{
 144		/* Scalar L1 Instruction Cache per SQC */
 145		.cache_size = 32,
 146		.cache_level = 1,
 147		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 148				CRAT_CACHE_FLAGS_INST_CACHE |
 149				CRAT_CACHE_FLAGS_SIMD_CACHE),
 150		.num_cu_shared = 3,
 151	},
 152	{
 153		/* Scalar L1 Data Cache per SQC */
 154		.cache_size = 16,
 155		.cache_level = 1,
 156		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 157				CRAT_CACHE_FLAGS_DATA_CACHE |
 158				CRAT_CACHE_FLAGS_SIMD_CACHE),
 159		.num_cu_shared = 3,
 160	},
 161	{
 162		/* L2 Data Cache per GPU (Total Tex Cache) */
 163		.cache_size = 4096,
 164		.cache_level = 2,
 165		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 166				CRAT_CACHE_FLAGS_DATA_CACHE |
 167				CRAT_CACHE_FLAGS_SIMD_CACHE),
 168		.num_cu_shared = 16,
 169	},
 170};
 171
 172static struct kfd_gpu_cache_info raven_cache_info[] = {
 173	{
 174		/* TCP L1 Cache per CU */
 175		.cache_size = 16,
 176		.cache_level = 1,
 177		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 178				CRAT_CACHE_FLAGS_DATA_CACHE |
 179				CRAT_CACHE_FLAGS_SIMD_CACHE),
 180		.num_cu_shared = 1,
 181	},
 182	{
 183		/* Scalar L1 Instruction Cache per SQC */
 184		.cache_size = 32,
 185		.cache_level = 1,
 186		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 187				CRAT_CACHE_FLAGS_INST_CACHE |
 188				CRAT_CACHE_FLAGS_SIMD_CACHE),
 189		.num_cu_shared = 3,
 190	},
 191	{
 192		/* Scalar L1 Data Cache per SQC */
 193		.cache_size = 16,
 194		.cache_level = 1,
 195		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 196				CRAT_CACHE_FLAGS_DATA_CACHE |
 197				CRAT_CACHE_FLAGS_SIMD_CACHE),
 198		.num_cu_shared = 3,
 199	},
 200	{
 201		/* L2 Data Cache per GPU (Total Tex Cache) */
 202		.cache_size = 1024,
 203		.cache_level = 2,
 204		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 205				CRAT_CACHE_FLAGS_DATA_CACHE |
 206				CRAT_CACHE_FLAGS_SIMD_CACHE),
 207		.num_cu_shared = 11,
 208	},
 209};
 210
 211static struct kfd_gpu_cache_info renoir_cache_info[] = {
 212	{
 213		/* TCP L1 Cache per CU */
 214		.cache_size = 16,
 215		.cache_level = 1,
 216		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 217				CRAT_CACHE_FLAGS_DATA_CACHE |
 218				CRAT_CACHE_FLAGS_SIMD_CACHE),
 219		.num_cu_shared = 1,
 220	},
 221	{
 222		/* Scalar L1 Instruction Cache per SQC */
 223		.cache_size = 32,
 224		.cache_level = 1,
 225		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 226				CRAT_CACHE_FLAGS_INST_CACHE |
 227				CRAT_CACHE_FLAGS_SIMD_CACHE),
 228		.num_cu_shared = 3,
 229	},
 230	{
 231		/* Scalar L1 Data Cache per SQC */
 232		.cache_size = 16,
 233		.cache_level = 1,
 234		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 235				CRAT_CACHE_FLAGS_DATA_CACHE |
 236				CRAT_CACHE_FLAGS_SIMD_CACHE),
 237		.num_cu_shared = 3,
 238	},
 239	{
 240		/* L2 Data Cache per GPU (Total Tex Cache) */
 241		.cache_size = 1024,
 242		.cache_level = 2,
 243		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 244				CRAT_CACHE_FLAGS_DATA_CACHE |
 245				CRAT_CACHE_FLAGS_SIMD_CACHE),
 246		.num_cu_shared = 8,
 247	},
 248};
 249
 250static struct kfd_gpu_cache_info vega12_cache_info[] = {
 251	{
 252		/* TCP L1 Cache per CU */
 253		.cache_size = 16,
 254		.cache_level = 1,
 255		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 256				CRAT_CACHE_FLAGS_DATA_CACHE |
 257				CRAT_CACHE_FLAGS_SIMD_CACHE),
 258		.num_cu_shared = 1,
 259	},
 260	{
 261		/* Scalar L1 Instruction Cache per SQC */
 262		.cache_size = 32,
 263		.cache_level = 1,
 264		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 265				CRAT_CACHE_FLAGS_INST_CACHE |
 266				CRAT_CACHE_FLAGS_SIMD_CACHE),
 267		.num_cu_shared = 3,
 268	},
 269	{
 270		/* Scalar L1 Data Cache per SQC */
 271		.cache_size = 16,
 272		.cache_level = 1,
 273		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 274				CRAT_CACHE_FLAGS_DATA_CACHE |
 275				CRAT_CACHE_FLAGS_SIMD_CACHE),
 276		.num_cu_shared = 3,
 277	},
 278	{
 279		/* L2 Data Cache per GPU (Total Tex Cache) */
 280		.cache_size = 2048,
 281		.cache_level = 2,
 282		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 283				CRAT_CACHE_FLAGS_DATA_CACHE |
 284				CRAT_CACHE_FLAGS_SIMD_CACHE),
 285		.num_cu_shared = 5,
 286	},
 287};
 288
 289static struct kfd_gpu_cache_info vega20_cache_info[] = {
 290	{
 291		/* TCP L1 Cache per CU */
 292		.cache_size = 16,
 293		.cache_level = 1,
 294		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 295				CRAT_CACHE_FLAGS_DATA_CACHE |
 296				CRAT_CACHE_FLAGS_SIMD_CACHE),
 297		.num_cu_shared = 1,
 298	},
 299	{
 300		/* Scalar L1 Instruction Cache per SQC */
 301		.cache_size = 32,
 302		.cache_level = 1,
 303		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 304				CRAT_CACHE_FLAGS_INST_CACHE |
 305				CRAT_CACHE_FLAGS_SIMD_CACHE),
 306		.num_cu_shared = 3,
 307	},
 308	{
 309		/* Scalar L1 Data Cache per SQC */
 310		.cache_size = 16,
 311		.cache_level = 1,
 312		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 313				CRAT_CACHE_FLAGS_DATA_CACHE |
 314				CRAT_CACHE_FLAGS_SIMD_CACHE),
 315		.num_cu_shared = 3,
 316	},
 317	{
 318		/* L2 Data Cache per GPU (Total Tex Cache) */
 319		.cache_size = 8192,
 320		.cache_level = 2,
 321		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 322				CRAT_CACHE_FLAGS_DATA_CACHE |
 323				CRAT_CACHE_FLAGS_SIMD_CACHE),
 324		.num_cu_shared = 16,
 325	},
 326};
 327
 328static struct kfd_gpu_cache_info aldebaran_cache_info[] = {
 329	{
 330		/* TCP L1 Cache per CU */
 331		.cache_size = 16,
 332		.cache_level = 1,
 333		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 334				CRAT_CACHE_FLAGS_DATA_CACHE |
 335				CRAT_CACHE_FLAGS_SIMD_CACHE),
 336		.num_cu_shared = 1,
 337	},
 338	{
 339		/* Scalar L1 Instruction Cache per SQC */
 340		.cache_size = 32,
 341		.cache_level = 1,
 342		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 343				CRAT_CACHE_FLAGS_INST_CACHE |
 344				CRAT_CACHE_FLAGS_SIMD_CACHE),
 345		.num_cu_shared = 2,
 346	},
 347	{
 348		/* Scalar L1 Data Cache per SQC */
 349		.cache_size = 16,
 350		.cache_level = 1,
 351		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 352				CRAT_CACHE_FLAGS_DATA_CACHE |
 353				CRAT_CACHE_FLAGS_SIMD_CACHE),
 354		.num_cu_shared = 2,
 355	},
 356	{
 357		/* L2 Data Cache per GPU (Total Tex Cache) */
 358		.cache_size = 8192,
 359		.cache_level = 2,
 360		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 361				CRAT_CACHE_FLAGS_DATA_CACHE |
 362				CRAT_CACHE_FLAGS_SIMD_CACHE),
 363		.num_cu_shared = 14,
 364	},
 365};
 366
 367static struct kfd_gpu_cache_info navi10_cache_info[] = {
 368	{
 369		/* TCP L1 Cache per CU */
 370		.cache_size = 16,
 371		.cache_level = 1,
 372		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 373				CRAT_CACHE_FLAGS_DATA_CACHE |
 374				CRAT_CACHE_FLAGS_SIMD_CACHE),
 375		.num_cu_shared = 1,
 376	},
 377	{
 378		/* Scalar L1 Instruction Cache per SQC */
 379		.cache_size = 32,
 380		.cache_level = 1,
 381		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 382				CRAT_CACHE_FLAGS_INST_CACHE |
 383				CRAT_CACHE_FLAGS_SIMD_CACHE),
 384		.num_cu_shared = 2,
 385	},
 386	{
 387		/* Scalar L1 Data Cache per SQC */
 388		.cache_size = 16,
 389		.cache_level = 1,
 390		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 391				CRAT_CACHE_FLAGS_DATA_CACHE |
 392				CRAT_CACHE_FLAGS_SIMD_CACHE),
 393		.num_cu_shared = 2,
 394	},
 395	{
 396		/* GL1 Data Cache per SA */
 397		.cache_size = 128,
 398		.cache_level = 1,
 399		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 400				CRAT_CACHE_FLAGS_DATA_CACHE |
 401				CRAT_CACHE_FLAGS_SIMD_CACHE),
 402		.num_cu_shared = 10,
 403	},
 404	{
 405		/* L2 Data Cache per GPU (Total Tex Cache) */
 406		.cache_size = 4096,
 407		.cache_level = 2,
 408		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 409				CRAT_CACHE_FLAGS_DATA_CACHE |
 410				CRAT_CACHE_FLAGS_SIMD_CACHE),
 411		.num_cu_shared = 10,
 412	},
 413};
 414
 415static struct kfd_gpu_cache_info vangogh_cache_info[] = {
 416	{
 417		/* TCP L1 Cache per CU */
 418		.cache_size = 16,
 419		.cache_level = 1,
 420		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 421				CRAT_CACHE_FLAGS_DATA_CACHE |
 422				CRAT_CACHE_FLAGS_SIMD_CACHE),
 423		.num_cu_shared = 1,
 424	},
 425	{
 426		/* Scalar L1 Instruction Cache per SQC */
 427		.cache_size = 32,
 428		.cache_level = 1,
 429		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 430				CRAT_CACHE_FLAGS_INST_CACHE |
 431				CRAT_CACHE_FLAGS_SIMD_CACHE),
 432		.num_cu_shared = 2,
 433	},
 434	{
 435		/* Scalar L1 Data Cache per SQC */
 436		.cache_size = 16,
 437		.cache_level = 1,
 438		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 439				CRAT_CACHE_FLAGS_DATA_CACHE |
 440				CRAT_CACHE_FLAGS_SIMD_CACHE),
 441		.num_cu_shared = 2,
 442	},
 443	{
 444		/* GL1 Data Cache per SA */
 445		.cache_size = 128,
 446		.cache_level = 1,
 447		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 448				CRAT_CACHE_FLAGS_DATA_CACHE |
 449				CRAT_CACHE_FLAGS_SIMD_CACHE),
 450		.num_cu_shared = 8,
 451	},
 452	{
 453		/* L2 Data Cache per GPU (Total Tex Cache) */
 454		.cache_size = 1024,
 455		.cache_level = 2,
 456		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 457				CRAT_CACHE_FLAGS_DATA_CACHE |
 458				CRAT_CACHE_FLAGS_SIMD_CACHE),
 459		.num_cu_shared = 8,
 460	},
 461};
 462
 463static struct kfd_gpu_cache_info navi14_cache_info[] = {
 464	{
 465		/* TCP L1 Cache per CU */
 466		.cache_size = 16,
 467		.cache_level = 1,
 468		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 469				CRAT_CACHE_FLAGS_DATA_CACHE |
 470				CRAT_CACHE_FLAGS_SIMD_CACHE),
 471		.num_cu_shared = 1,
 472	},
 473	{
 474		/* Scalar L1 Instruction Cache per SQC */
 475		.cache_size = 32,
 476		.cache_level = 1,
 477		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 478				CRAT_CACHE_FLAGS_INST_CACHE |
 479				CRAT_CACHE_FLAGS_SIMD_CACHE),
 480		.num_cu_shared = 2,
 481	},
 482	{
 483		/* Scalar L1 Data Cache per SQC */
 484		.cache_size = 16,
 485		.cache_level = 1,
 486		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 487				CRAT_CACHE_FLAGS_DATA_CACHE |
 488				CRAT_CACHE_FLAGS_SIMD_CACHE),
 489		.num_cu_shared = 2,
 490	},
 491	{
 492		/* GL1 Data Cache per SA */
 493		.cache_size = 128,
 494		.cache_level = 1,
 495		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 496				CRAT_CACHE_FLAGS_DATA_CACHE |
 497				CRAT_CACHE_FLAGS_SIMD_CACHE),
 498		.num_cu_shared = 12,
 499	},
 500	{
 501		/* L2 Data Cache per GPU (Total Tex Cache) */
 502		.cache_size = 2048,
 503		.cache_level = 2,
 504		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 505				CRAT_CACHE_FLAGS_DATA_CACHE |
 506				CRAT_CACHE_FLAGS_SIMD_CACHE),
 507		.num_cu_shared = 12,
 508	},
 509};
 510
 511static struct kfd_gpu_cache_info sienna_cichlid_cache_info[] = {
 512	{
 513		/* TCP L1 Cache per CU */
 514		.cache_size = 16,
 515		.cache_level = 1,
 516		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 517				CRAT_CACHE_FLAGS_DATA_CACHE |
 518				CRAT_CACHE_FLAGS_SIMD_CACHE),
 519		.num_cu_shared = 1,
 520	},
 521	{
 522		/* Scalar L1 Instruction Cache per SQC */
 523		.cache_size = 32,
 524		.cache_level = 1,
 525		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 526				CRAT_CACHE_FLAGS_INST_CACHE |
 527				CRAT_CACHE_FLAGS_SIMD_CACHE),
 528		.num_cu_shared = 2,
 529	},
 530	{
 531		/* Scalar L1 Data Cache per SQC */
 532		.cache_size = 16,
 533		.cache_level = 1,
 534		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 535				CRAT_CACHE_FLAGS_DATA_CACHE |
 536				CRAT_CACHE_FLAGS_SIMD_CACHE),
 537		.num_cu_shared = 2,
 538	},
 539	{
 540		/* GL1 Data Cache per SA */
 541		.cache_size = 128,
 542		.cache_level = 1,
 543		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 544				CRAT_CACHE_FLAGS_DATA_CACHE |
 545				CRAT_CACHE_FLAGS_SIMD_CACHE),
 546		.num_cu_shared = 10,
 547	},
 548	{
 549		/* L2 Data Cache per GPU (Total Tex Cache) */
 550		.cache_size = 4096,
 551		.cache_level = 2,
 552		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 553				CRAT_CACHE_FLAGS_DATA_CACHE |
 554				CRAT_CACHE_FLAGS_SIMD_CACHE),
 555		.num_cu_shared = 10,
 556	},
 557	{
 558		/* L3 Data Cache per GPU */
 559		.cache_size = 128*1024,
 560		.cache_level = 3,
 561		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 562				CRAT_CACHE_FLAGS_DATA_CACHE |
 563				CRAT_CACHE_FLAGS_SIMD_CACHE),
 564		.num_cu_shared = 10,
 565	},
 566};
 567
 568static struct kfd_gpu_cache_info navy_flounder_cache_info[] = {
 569	{
 570		/* TCP L1 Cache per CU */
 571		.cache_size = 16,
 572		.cache_level = 1,
 573		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 574				CRAT_CACHE_FLAGS_DATA_CACHE |
 575				CRAT_CACHE_FLAGS_SIMD_CACHE),
 576		.num_cu_shared = 1,
 577	},
 578	{
 579		/* Scalar L1 Instruction Cache per SQC */
 580		.cache_size = 32,
 581		.cache_level = 1,
 582		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 583				CRAT_CACHE_FLAGS_INST_CACHE |
 584				CRAT_CACHE_FLAGS_SIMD_CACHE),
 585		.num_cu_shared = 2,
 586	},
 587	{
 588		/* Scalar L1 Data Cache per SQC */
 589		.cache_size = 16,
 590		.cache_level = 1,
 591		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 592				CRAT_CACHE_FLAGS_DATA_CACHE |
 593				CRAT_CACHE_FLAGS_SIMD_CACHE),
 594		.num_cu_shared = 2,
 595	},
 596	{
 597		/* GL1 Data Cache per SA */
 598		.cache_size = 128,
 599		.cache_level = 1,
 600		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 601				CRAT_CACHE_FLAGS_DATA_CACHE |
 602				CRAT_CACHE_FLAGS_SIMD_CACHE),
 603		.num_cu_shared = 10,
 604	},
 605	{
 606		/* L2 Data Cache per GPU (Total Tex Cache) */
 607		.cache_size = 3072,
 608		.cache_level = 2,
 609		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 610				CRAT_CACHE_FLAGS_DATA_CACHE |
 611				CRAT_CACHE_FLAGS_SIMD_CACHE),
 612		.num_cu_shared = 10,
 613	},
 614	{
 615		/* L3 Data Cache per GPU */
 616		.cache_size = 96*1024,
 617		.cache_level = 3,
 618		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 619				CRAT_CACHE_FLAGS_DATA_CACHE |
 620				CRAT_CACHE_FLAGS_SIMD_CACHE),
 621		.num_cu_shared = 10,
 622	},
 623};
 624
 625static struct kfd_gpu_cache_info dimgrey_cavefish_cache_info[] = {
 626	{
 627		/* TCP L1 Cache per CU */
 628		.cache_size = 16,
 629		.cache_level = 1,
 630		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 631				CRAT_CACHE_FLAGS_DATA_CACHE |
 632				CRAT_CACHE_FLAGS_SIMD_CACHE),
 633		.num_cu_shared = 1,
 634	},
 635	{
 636		/* Scalar L1 Instruction Cache per SQC */
 637		.cache_size = 32,
 638		.cache_level = 1,
 639		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 640				CRAT_CACHE_FLAGS_INST_CACHE |
 641				CRAT_CACHE_FLAGS_SIMD_CACHE),
 642		.num_cu_shared = 2,
 643	},
 644	{
 645		/* Scalar L1 Data Cache per SQC */
 646		.cache_size = 16,
 647		.cache_level = 1,
 648		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 649				CRAT_CACHE_FLAGS_DATA_CACHE |
 650				CRAT_CACHE_FLAGS_SIMD_CACHE),
 651		.num_cu_shared = 2,
 652	},
 653	{
 654		/* GL1 Data Cache per SA */
 655		.cache_size = 128,
 656		.cache_level = 1,
 657		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 658				CRAT_CACHE_FLAGS_DATA_CACHE |
 659				CRAT_CACHE_FLAGS_SIMD_CACHE),
 660		.num_cu_shared = 8,
 661	},
 662	{
 663		/* L2 Data Cache per GPU (Total Tex Cache) */
 664		.cache_size = 2048,
 665		.cache_level = 2,
 666		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 667				CRAT_CACHE_FLAGS_DATA_CACHE |
 668				CRAT_CACHE_FLAGS_SIMD_CACHE),
 669		.num_cu_shared = 8,
 670	},
 671	{
 672		/* L3 Data Cache per GPU */
 673		.cache_size = 32*1024,
 674		.cache_level = 3,
 675		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 676				CRAT_CACHE_FLAGS_DATA_CACHE |
 677				CRAT_CACHE_FLAGS_SIMD_CACHE),
 678		.num_cu_shared = 8,
 679	},
 680};
 681
 682static struct kfd_gpu_cache_info beige_goby_cache_info[] = {
 683	{
 684		/* TCP L1 Cache per CU */
 685		.cache_size = 16,
 686		.cache_level = 1,
 687		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 688				CRAT_CACHE_FLAGS_DATA_CACHE |
 689				CRAT_CACHE_FLAGS_SIMD_CACHE),
 690		.num_cu_shared = 1,
 691	},
 692	{
 693		/* Scalar L1 Instruction Cache per SQC */
 694		.cache_size = 32,
 695		.cache_level = 1,
 696		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 697				CRAT_CACHE_FLAGS_INST_CACHE |
 698				CRAT_CACHE_FLAGS_SIMD_CACHE),
 699		.num_cu_shared = 2,
 700	},
 701	{
 702		/* Scalar L1 Data Cache per SQC */
 703		.cache_size = 16,
 704		.cache_level = 1,
 705		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 706				CRAT_CACHE_FLAGS_DATA_CACHE |
 707				CRAT_CACHE_FLAGS_SIMD_CACHE),
 708		.num_cu_shared = 2,
 709	},
 710	{
 711		/* GL1 Data Cache per SA */
 712		.cache_size = 128,
 713		.cache_level = 1,
 714		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 715				CRAT_CACHE_FLAGS_DATA_CACHE |
 716				CRAT_CACHE_FLAGS_SIMD_CACHE),
 717		.num_cu_shared = 8,
 718	},
 719	{
 720		/* L2 Data Cache per GPU (Total Tex Cache) */
 721		.cache_size = 1024,
 722		.cache_level = 2,
 723		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 724				CRAT_CACHE_FLAGS_DATA_CACHE |
 725				CRAT_CACHE_FLAGS_SIMD_CACHE),
 726		.num_cu_shared = 8,
 727	},
 728	{
 729		/* L3 Data Cache per GPU */
 730		.cache_size = 16*1024,
 731		.cache_level = 3,
 732		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 733				CRAT_CACHE_FLAGS_DATA_CACHE |
 734				CRAT_CACHE_FLAGS_SIMD_CACHE),
 735		.num_cu_shared = 8,
 736	},
 737};
 738
 739static struct kfd_gpu_cache_info yellow_carp_cache_info[] = {
 740	{
 741		/* TCP L1 Cache per CU */
 742		.cache_size = 16,
 743		.cache_level = 1,
 744		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 745				CRAT_CACHE_FLAGS_DATA_CACHE |
 746				CRAT_CACHE_FLAGS_SIMD_CACHE),
 747		.num_cu_shared = 1,
 748	},
 749	{
 750		/* Scalar L1 Instruction Cache per SQC */
 751		.cache_size = 32,
 752		.cache_level = 1,
 753		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 754				CRAT_CACHE_FLAGS_INST_CACHE |
 755				CRAT_CACHE_FLAGS_SIMD_CACHE),
 756		.num_cu_shared = 2,
 757	},
 758	{
 759		/* Scalar L1 Data Cache per SQC */
 760		.cache_size = 16,
 761		.cache_level = 1,
 762		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 763				CRAT_CACHE_FLAGS_DATA_CACHE |
 764				CRAT_CACHE_FLAGS_SIMD_CACHE),
 765		.num_cu_shared = 2,
 766	},
 767	{
 768		/* GL1 Data Cache per SA */
 769		.cache_size = 128,
 770		.cache_level = 1,
 771		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 772				CRAT_CACHE_FLAGS_DATA_CACHE |
 773				CRAT_CACHE_FLAGS_SIMD_CACHE),
 774		.num_cu_shared = 6,
 775	},
 776	{
 777		/* L2 Data Cache per GPU (Total Tex Cache) */
 778		.cache_size = 2048,
 779		.cache_level = 2,
 780		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 781				CRAT_CACHE_FLAGS_DATA_CACHE |
 782				CRAT_CACHE_FLAGS_SIMD_CACHE),
 783		.num_cu_shared = 6,
 784	},
 785};
 786
 787static struct kfd_gpu_cache_info gfx1037_cache_info[] = {
 788	{
 789		/* TCP L1 Cache per CU */
 790		.cache_size = 16,
 791		.cache_level = 1,
 792		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 793				CRAT_CACHE_FLAGS_DATA_CACHE |
 794				CRAT_CACHE_FLAGS_SIMD_CACHE),
 795		.num_cu_shared = 1,
 796	},
 797	{
 798		/* Scalar L1 Instruction Cache per SQC */
 799		.cache_size = 32,
 800		.cache_level = 1,
 801		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 802				CRAT_CACHE_FLAGS_INST_CACHE |
 803				CRAT_CACHE_FLAGS_SIMD_CACHE),
 804		.num_cu_shared = 2,
 805	},
 806	{
 807		/* Scalar L1 Data Cache per SQC */
 808		.cache_size = 16,
 809		.cache_level = 1,
 810		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 811				CRAT_CACHE_FLAGS_DATA_CACHE |
 812				CRAT_CACHE_FLAGS_SIMD_CACHE),
 813		.num_cu_shared = 2,
 814	},
 815	{
 816		/* GL1 Data Cache per SA */
 817		.cache_size = 128,
 818		.cache_level = 1,
 819		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 820				CRAT_CACHE_FLAGS_DATA_CACHE |
 821				CRAT_CACHE_FLAGS_SIMD_CACHE),
 822		.num_cu_shared = 2,
 823	},
 824	{
 825		/* L2 Data Cache per GPU (Total Tex Cache) */
 826		.cache_size = 256,
 827		.cache_level = 2,
 828		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 829				CRAT_CACHE_FLAGS_DATA_CACHE |
 830				CRAT_CACHE_FLAGS_SIMD_CACHE),
 831		.num_cu_shared = 2,
 832	},
 833};
 834
 835static struct kfd_gpu_cache_info gc_10_3_6_cache_info[] = {
 836	{
 837		/* TCP L1 Cache per CU */
 838		.cache_size = 16,
 839		.cache_level = 1,
 840		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 841			  CRAT_CACHE_FLAGS_DATA_CACHE |
 842			  CRAT_CACHE_FLAGS_SIMD_CACHE),
 843		.num_cu_shared = 1,
 844	},
 845	{
 846		/* Scalar L1 Instruction Cache per SQC */
 847		.cache_size = 32,
 848		.cache_level = 1,
 849		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 850			  CRAT_CACHE_FLAGS_INST_CACHE |
 851			  CRAT_CACHE_FLAGS_SIMD_CACHE),
 852		.num_cu_shared = 2,
 853	},
 854	{
 855		/* Scalar L1 Data Cache per SQC */
 856		.cache_size = 16,
 857		.cache_level = 1,
 858		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 859			  CRAT_CACHE_FLAGS_DATA_CACHE |
 860			  CRAT_CACHE_FLAGS_SIMD_CACHE),
 861		.num_cu_shared = 2,
 862	},
 863	{
 864		/* GL1 Data Cache per SA */
 865		.cache_size = 128,
 866		.cache_level = 1,
 867		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 868			  CRAT_CACHE_FLAGS_DATA_CACHE |
 869			  CRAT_CACHE_FLAGS_SIMD_CACHE),
 870		.num_cu_shared = 2,
 871	},
 872	{
 873		/* L2 Data Cache per GPU (Total Tex Cache) */
 874		.cache_size = 256,
 875		.cache_level = 2,
 876		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 877			  CRAT_CACHE_FLAGS_DATA_CACHE |
 878			  CRAT_CACHE_FLAGS_SIMD_CACHE),
 879		.num_cu_shared = 2,
 880	},
 881};
 882
 883static struct kfd_gpu_cache_info dummy_cache_info[] = {
 884	{
 885		/* TCP L1 Cache per CU */
 886		.cache_size = 16,
 887		.cache_level = 1,
 888		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 889				CRAT_CACHE_FLAGS_DATA_CACHE |
 890				CRAT_CACHE_FLAGS_SIMD_CACHE),
 891		.num_cu_shared = 1,
 892	},
 893	{
 894		/* Scalar L1 Instruction Cache per SQC */
 895		.cache_size = 32,
 896		.cache_level = 1,
 897		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 898				CRAT_CACHE_FLAGS_INST_CACHE |
 899				CRAT_CACHE_FLAGS_SIMD_CACHE),
 900		.num_cu_shared = 2,
 901	},
 902	{
 903		/* Scalar L1 Data Cache per SQC */
 904		.cache_size = 16,
 905		.cache_level = 1,
 906		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 907				CRAT_CACHE_FLAGS_DATA_CACHE |
 908				CRAT_CACHE_FLAGS_SIMD_CACHE),
 909		.num_cu_shared = 2,
 910	},
 911	{
 912		/* GL1 Data Cache per SA */
 913		.cache_size = 128,
 914		.cache_level = 1,
 915		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 916				CRAT_CACHE_FLAGS_DATA_CACHE |
 917				CRAT_CACHE_FLAGS_SIMD_CACHE),
 918		.num_cu_shared = 6,
 919	},
 920	{
 921		/* L2 Data Cache per GPU (Total Tex Cache) */
 922		.cache_size = 2048,
 923		.cache_level = 2,
 924		.flags = (CRAT_CACHE_FLAGS_ENABLED |
 925				CRAT_CACHE_FLAGS_DATA_CACHE |
 926				CRAT_CACHE_FLAGS_SIMD_CACHE),
 927		.num_cu_shared = 6,
 928	},
 929};
 930
 931static void kfd_populated_cu_info_cpu(struct kfd_topology_device *dev,
 932		struct crat_subtype_computeunit *cu)
 933{
 934	dev->node_props.cpu_cores_count = cu->num_cpu_cores;
 935	dev->node_props.cpu_core_id_base = cu->processor_id_low;
 936	if (cu->hsa_capability & CRAT_CU_FLAGS_IOMMU_PRESENT)
 937		dev->node_props.capability |= HSA_CAP_ATS_PRESENT;
 938
 939	pr_debug("CU CPU: cores=%d id_base=%d\n", cu->num_cpu_cores,
 940			cu->processor_id_low);
 941}
 942
 943static void kfd_populated_cu_info_gpu(struct kfd_topology_device *dev,
 944		struct crat_subtype_computeunit *cu)
 945{
 946	dev->node_props.simd_id_base = cu->processor_id_low;
 947	dev->node_props.simd_count = cu->num_simd_cores;
 948	dev->node_props.lds_size_in_kb = cu->lds_size_in_kb;
 949	dev->node_props.max_waves_per_simd = cu->max_waves_simd;
 950	dev->node_props.wave_front_size = cu->wave_front_size;
 951	dev->node_props.array_count = cu->array_count;
 952	dev->node_props.cu_per_simd_array = cu->num_cu_per_array;
 953	dev->node_props.simd_per_cu = cu->num_simd_per_cu;
 954	dev->node_props.max_slots_scratch_cu = cu->max_slots_scatch_cu;
 955	if (cu->hsa_capability & CRAT_CU_FLAGS_HOT_PLUGGABLE)
 956		dev->node_props.capability |= HSA_CAP_HOT_PLUGGABLE;
 957	pr_debug("CU GPU: id_base=%d\n", cu->processor_id_low);
 958}
 959
 960/* kfd_parse_subtype_cu - parse compute unit subtypes and attach it to correct
 961 * topology device present in the device_list
 962 */
 963static int kfd_parse_subtype_cu(struct crat_subtype_computeunit *cu,
 964				struct list_head *device_list)
 965{
 966	struct kfd_topology_device *dev;
 967
 968	pr_debug("Found CU entry in CRAT table with proximity_domain=%d caps=%x\n",
 969			cu->proximity_domain, cu->hsa_capability);
 970	list_for_each_entry(dev, device_list, list) {
 971		if (cu->proximity_domain == dev->proximity_domain) {
 972			if (cu->flags & CRAT_CU_FLAGS_CPU_PRESENT)
 973				kfd_populated_cu_info_cpu(dev, cu);
 974
 975			if (cu->flags & CRAT_CU_FLAGS_GPU_PRESENT)
 976				kfd_populated_cu_info_gpu(dev, cu);
 977			break;
 978		}
 979	}
 980
 981	return 0;
 982}
 983
 984static struct kfd_mem_properties *
 985find_subtype_mem(uint32_t heap_type, uint32_t flags, uint32_t width,
 986		struct kfd_topology_device *dev)
 987{
 988	struct kfd_mem_properties *props;
 989
 990	list_for_each_entry(props, &dev->mem_props, list) {
 991		if (props->heap_type == heap_type
 992				&& props->flags == flags
 993				&& props->width == width)
 994			return props;
 995	}
 996
 997	return NULL;
 998}
 999/* kfd_parse_subtype_mem - parse memory subtypes and attach it to correct
1000 * topology device present in the device_list
1001 */
1002static int kfd_parse_subtype_mem(struct crat_subtype_memory *mem,
1003				struct list_head *device_list)
1004{
1005	struct kfd_mem_properties *props;
1006	struct kfd_topology_device *dev;
1007	uint32_t heap_type;
1008	uint64_t size_in_bytes;
1009	uint32_t flags = 0;
1010	uint32_t width;
1011
1012	pr_debug("Found memory entry in CRAT table with proximity_domain=%d\n",
1013			mem->proximity_domain);
1014	list_for_each_entry(dev, device_list, list) {
1015		if (mem->proximity_domain == dev->proximity_domain) {
 
 
 
 
1016			/* We're on GPU node */
1017			if (dev->node_props.cpu_cores_count == 0) {
1018				/* APU */
1019				if (mem->visibility_type == 0)
1020					heap_type =
1021						HSA_MEM_HEAP_TYPE_FB_PRIVATE;
1022				/* dGPU */
1023				else
1024					heap_type = mem->visibility_type;
1025			} else
1026				heap_type = HSA_MEM_HEAP_TYPE_SYSTEM;
1027
1028			if (mem->flags & CRAT_MEM_FLAGS_HOT_PLUGGABLE)
1029				flags |= HSA_MEM_FLAGS_HOT_PLUGGABLE;
1030			if (mem->flags & CRAT_MEM_FLAGS_NON_VOLATILE)
1031				flags |= HSA_MEM_FLAGS_NON_VOLATILE;
1032
1033			size_in_bytes =
1034				((uint64_t)mem->length_high << 32) +
1035							mem->length_low;
1036			width = mem->width;
1037
1038			/* Multiple banks of the same type are aggregated into
1039			 * one. User mode doesn't care about multiple physical
1040			 * memory segments. It's managed as a single virtual
1041			 * heap for user mode.
1042			 */
1043			props = find_subtype_mem(heap_type, flags, width, dev);
1044			if (props) {
1045				props->size_in_bytes += size_in_bytes;
1046				break;
1047			}
1048
1049			props = kfd_alloc_struct(props);
1050			if (!props)
1051				return -ENOMEM;
1052
1053			props->heap_type = heap_type;
1054			props->flags = flags;
1055			props->size_in_bytes = size_in_bytes;
1056			props->width = width;
1057
1058			dev->node_props.mem_banks_count++;
1059			list_add_tail(&props->list, &dev->mem_props);
1060
1061			break;
1062		}
1063	}
1064
1065	return 0;
1066}
1067
1068/* kfd_parse_subtype_cache - parse cache subtypes and attach it to correct
1069 * topology device present in the device_list
1070 */
1071static int kfd_parse_subtype_cache(struct crat_subtype_cache *cache,
1072			struct list_head *device_list)
1073{
1074	struct kfd_cache_properties *props;
1075	struct kfd_topology_device *dev;
1076	uint32_t id;
1077	uint32_t total_num_of_cu;
1078
1079	id = cache->processor_id_low;
1080
1081	pr_debug("Found cache entry in CRAT table with processor_id=%d\n", id);
1082	list_for_each_entry(dev, device_list, list) {
1083		total_num_of_cu = (dev->node_props.array_count *
1084					dev->node_props.cu_per_simd_array);
1085
1086		/* Cache infomration in CRAT doesn't have proximity_domain
1087		 * information as it is associated with a CPU core or GPU
1088		 * Compute Unit. So map the cache using CPU core Id or SIMD
1089		 * (GPU) ID.
1090		 * TODO: This works because currently we can safely assume that
1091		 *  Compute Units are parsed before caches are parsed. In
1092		 *  future, remove this dependency
1093		 */
1094		if ((id >= dev->node_props.cpu_core_id_base &&
1095			id <= dev->node_props.cpu_core_id_base +
1096				dev->node_props.cpu_cores_count) ||
1097			(id >= dev->node_props.simd_id_base &&
1098			id < dev->node_props.simd_id_base +
1099				total_num_of_cu)) {
1100			props = kfd_alloc_struct(props);
1101			if (!props)
1102				return -ENOMEM;
1103
1104			props->processor_id_low = id;
1105			props->cache_level = cache->cache_level;
1106			props->cache_size = cache->cache_size;
1107			props->cacheline_size = cache->cache_line_size;
1108			props->cachelines_per_tag = cache->lines_per_tag;
1109			props->cache_assoc = cache->associativity;
1110			props->cache_latency = cache->cache_latency;
1111
1112			memcpy(props->sibling_map, cache->sibling_map,
1113					CRAT_SIBLINGMAP_SIZE);
1114
1115			/* set the sibling_map_size as 32 for CRAT from ACPI */
1116			props->sibling_map_size = CRAT_SIBLINGMAP_SIZE;
1117
1118			if (cache->flags & CRAT_CACHE_FLAGS_DATA_CACHE)
1119				props->cache_type |= HSA_CACHE_TYPE_DATA;
1120			if (cache->flags & CRAT_CACHE_FLAGS_INST_CACHE)
1121				props->cache_type |= HSA_CACHE_TYPE_INSTRUCTION;
1122			if (cache->flags & CRAT_CACHE_FLAGS_CPU_CACHE)
1123				props->cache_type |= HSA_CACHE_TYPE_CPU;
1124			if (cache->flags & CRAT_CACHE_FLAGS_SIMD_CACHE)
1125				props->cache_type |= HSA_CACHE_TYPE_HSACU;
1126
 
1127			dev->node_props.caches_count++;
1128			list_add_tail(&props->list, &dev->cache_props);
1129
1130			break;
1131		}
1132	}
1133
1134	return 0;
1135}
1136
1137/* kfd_parse_subtype_iolink - parse iolink subtypes and attach it to correct
1138 * topology device present in the device_list
1139 */
1140static int kfd_parse_subtype_iolink(struct crat_subtype_iolink *iolink,
1141					struct list_head *device_list)
1142{
1143	struct kfd_iolink_properties *props = NULL, *props2;
1144	struct kfd_topology_device *dev, *to_dev;
1145	uint32_t id_from;
1146	uint32_t id_to;
1147
1148	id_from = iolink->proximity_domain_from;
1149	id_to = iolink->proximity_domain_to;
1150
1151	pr_debug("Found IO link entry in CRAT table with id_from=%d, id_to %d\n",
1152			id_from, id_to);
1153	list_for_each_entry(dev, device_list, list) {
1154		if (id_from == dev->proximity_domain) {
1155			props = kfd_alloc_struct(props);
1156			if (!props)
1157				return -ENOMEM;
1158
1159			props->node_from = id_from;
1160			props->node_to = id_to;
1161			props->ver_maj = iolink->version_major;
1162			props->ver_min = iolink->version_minor;
1163			props->iolink_type = iolink->io_interface_type;
1164
1165			if (props->iolink_type == CRAT_IOLINK_TYPE_PCIEXPRESS)
1166				props->weight = 20;
1167			else if (props->iolink_type == CRAT_IOLINK_TYPE_XGMI)
1168				props->weight = iolink->weight_xgmi;
1169			else
1170				props->weight = node_distance(id_from, id_to);
1171
1172			props->min_latency = iolink->minimum_latency;
1173			props->max_latency = iolink->maximum_latency;
1174			props->min_bandwidth = iolink->minimum_bandwidth_mbs;
1175			props->max_bandwidth = iolink->maximum_bandwidth_mbs;
1176			props->rec_transfer_size =
1177					iolink->recommended_transfer_size;
1178
 
1179			dev->node_props.io_links_count++;
1180			list_add_tail(&props->list, &dev->io_link_props);
1181			break;
1182		}
1183	}
1184
1185	/* CPU topology is created before GPUs are detected, so CPU->GPU
1186	 * links are not built at that time. If a PCIe type is discovered, it
1187	 * means a GPU is detected and we are adding GPU->CPU to the topology.
1188	 * At this time, also add the corresponded CPU->GPU link if GPU
1189	 * is large bar.
1190	 * For xGMI, we only added the link with one direction in the crat
1191	 * table, add corresponded reversed direction link now.
1192	 */
1193	if (props && (iolink->flags & CRAT_IOLINK_FLAGS_BI_DIRECTIONAL)) {
1194		to_dev = kfd_topology_device_by_proximity_domain_no_lock(id_to);
1195		if (!to_dev)
1196			return -ENODEV;
1197		/* same everything but the other direction */
1198		props2 = kmemdup(props, sizeof(*props2), GFP_KERNEL);
1199		if (!props2)
1200			return -ENOMEM;
1201
1202		props2->node_from = id_to;
1203		props2->node_to = id_from;
1204		props2->kobj = NULL;
1205		to_dev->node_props.io_links_count++;
1206		list_add_tail(&props2->list, &to_dev->io_link_props);
 
1207	}
1208
1209	return 0;
1210}
1211
1212/* kfd_parse_subtype - parse subtypes and attach it to correct topology device
1213 * present in the device_list
1214 *	@sub_type_hdr - subtype section of crat_image
1215 *	@device_list - list of topology devices present in this crat_image
1216 */
1217static int kfd_parse_subtype(struct crat_subtype_generic *sub_type_hdr,
1218				struct list_head *device_list)
1219{
1220	struct crat_subtype_computeunit *cu;
1221	struct crat_subtype_memory *mem;
1222	struct crat_subtype_cache *cache;
1223	struct crat_subtype_iolink *iolink;
1224	int ret = 0;
1225
1226	switch (sub_type_hdr->type) {
1227	case CRAT_SUBTYPE_COMPUTEUNIT_AFFINITY:
1228		cu = (struct crat_subtype_computeunit *)sub_type_hdr;
1229		ret = kfd_parse_subtype_cu(cu, device_list);
1230		break;
1231	case CRAT_SUBTYPE_MEMORY_AFFINITY:
1232		mem = (struct crat_subtype_memory *)sub_type_hdr;
1233		ret = kfd_parse_subtype_mem(mem, device_list);
1234		break;
1235	case CRAT_SUBTYPE_CACHE_AFFINITY:
1236		cache = (struct crat_subtype_cache *)sub_type_hdr;
1237		ret = kfd_parse_subtype_cache(cache, device_list);
1238		break;
1239	case CRAT_SUBTYPE_TLB_AFFINITY:
1240		/*
1241		 * For now, nothing to do here
1242		 */
1243		pr_debug("Found TLB entry in CRAT table (not processing)\n");
1244		break;
1245	case CRAT_SUBTYPE_CCOMPUTE_AFFINITY:
1246		/*
1247		 * For now, nothing to do here
1248		 */
1249		pr_debug("Found CCOMPUTE entry in CRAT table (not processing)\n");
1250		break;
1251	case CRAT_SUBTYPE_IOLINK_AFFINITY:
1252		iolink = (struct crat_subtype_iolink *)sub_type_hdr;
1253		ret = kfd_parse_subtype_iolink(iolink, device_list);
1254		break;
1255	default:
1256		pr_warn("Unknown subtype %d in CRAT\n",
1257				sub_type_hdr->type);
1258	}
1259
1260	return ret;
1261}
1262
1263/* kfd_parse_crat_table - parse CRAT table. For each node present in CRAT
1264 * create a kfd_topology_device and add in to device_list. Also parse
1265 * CRAT subtypes and attach it to appropriate kfd_topology_device
1266 *	@crat_image - input image containing CRAT
1267 *	@device_list - [OUT] list of kfd_topology_device generated after
1268 *		       parsing crat_image
1269 *	@proximity_domain - Proximity domain of the first device in the table
1270 *
1271 *	Return - 0 if successful else -ve value
1272 */
1273int kfd_parse_crat_table(void *crat_image, struct list_head *device_list,
1274			 uint32_t proximity_domain)
1275{
1276	struct kfd_topology_device *top_dev = NULL;
1277	struct crat_subtype_generic *sub_type_hdr;
1278	uint16_t node_id;
1279	int ret = 0;
1280	struct crat_header *crat_table = (struct crat_header *)crat_image;
1281	uint16_t num_nodes;
1282	uint32_t image_len;
1283
1284	if (!crat_image)
1285		return -EINVAL;
1286
1287	if (!list_empty(device_list)) {
1288		pr_warn("Error device list should be empty\n");
1289		return -EINVAL;
1290	}
1291
1292	num_nodes = crat_table->num_domains;
1293	image_len = crat_table->length;
1294
1295	pr_debug("Parsing CRAT table with %d nodes\n", num_nodes);
1296
1297	for (node_id = 0; node_id < num_nodes; node_id++) {
1298		top_dev = kfd_create_topology_device(device_list);
1299		if (!top_dev)
1300			break;
1301		top_dev->proximity_domain = proximity_domain++;
1302	}
1303
1304	if (!top_dev) {
1305		ret = -ENOMEM;
1306		goto err;
1307	}
1308
1309	memcpy(top_dev->oem_id, crat_table->oem_id, CRAT_OEMID_LENGTH);
1310	memcpy(top_dev->oem_table_id, crat_table->oem_table_id,
1311			CRAT_OEMTABLEID_LENGTH);
1312	top_dev->oem_revision = crat_table->oem_revision;
1313
1314	sub_type_hdr = (struct crat_subtype_generic *)(crat_table+1);
1315	while ((char *)sub_type_hdr + sizeof(struct crat_subtype_generic) <
1316			((char *)crat_image) + image_len) {
1317		if (sub_type_hdr->flags & CRAT_SUBTYPE_FLAGS_ENABLED) {
1318			ret = kfd_parse_subtype(sub_type_hdr, device_list);
1319			if (ret)
1320				break;
1321		}
1322
1323		sub_type_hdr = (typeof(sub_type_hdr))((char *)sub_type_hdr +
1324				sub_type_hdr->length);
1325	}
1326
1327err:
1328	if (ret)
1329		kfd_release_topology_device_list(device_list);
1330
1331	return ret;
1332}
1333
1334
1335static int kfd_fill_gpu_cache_info_from_gfx_config(struct kfd_dev *kdev,
1336						   struct kfd_gpu_cache_info *pcache_info)
 
 
 
 
 
1337{
1338	struct amdgpu_device *adev = kdev->adev;
1339	int i = 0;
1340
1341	/* TCP L1 Cache per CU */
1342	if (adev->gfx.config.gc_tcp_l1_size) {
1343		pcache_info[i].cache_size = adev->gfx.config.gc_tcp_l1_size;
1344		pcache_info[i].cache_level = 1;
1345		pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED |
1346					CRAT_CACHE_FLAGS_DATA_CACHE |
1347					CRAT_CACHE_FLAGS_SIMD_CACHE);
1348		pcache_info[0].num_cu_shared = adev->gfx.config.gc_num_tcp_per_wpg / 2;
1349		i++;
1350	}
1351	/* Scalar L1 Instruction Cache per SQC */
1352	if (adev->gfx.config.gc_l1_instruction_cache_size_per_sqc) {
1353		pcache_info[i].cache_size =
1354			adev->gfx.config.gc_l1_instruction_cache_size_per_sqc;
1355		pcache_info[i].cache_level = 1;
1356		pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED |
1357					CRAT_CACHE_FLAGS_INST_CACHE |
1358					CRAT_CACHE_FLAGS_SIMD_CACHE);
1359		pcache_info[i].num_cu_shared = adev->gfx.config.gc_num_sqc_per_wgp * 2;
1360		i++;
1361	}
1362	/* Scalar L1 Data Cache per SQC */
1363	if (adev->gfx.config.gc_l1_data_cache_size_per_sqc) {
1364		pcache_info[i].cache_size = adev->gfx.config.gc_l1_data_cache_size_per_sqc;
1365		pcache_info[i].cache_level = 1;
1366		pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED |
1367					CRAT_CACHE_FLAGS_DATA_CACHE |
1368					CRAT_CACHE_FLAGS_SIMD_CACHE);
1369		pcache_info[i].num_cu_shared = adev->gfx.config.gc_num_sqc_per_wgp * 2;
1370		i++;
1371	}
1372	/* GL1 Data Cache per SA */
1373	if (adev->gfx.config.gc_gl1c_per_sa &&
1374	    adev->gfx.config.gc_gl1c_size_per_instance) {
1375		pcache_info[i].cache_size = adev->gfx.config.gc_gl1c_per_sa *
1376			adev->gfx.config.gc_gl1c_size_per_instance;
1377		pcache_info[i].cache_level = 1;
1378		pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED |
1379					CRAT_CACHE_FLAGS_DATA_CACHE |
1380					CRAT_CACHE_FLAGS_SIMD_CACHE);
1381		pcache_info[i].num_cu_shared = adev->gfx.config.max_cu_per_sh;
1382		i++;
1383	}
1384	/* L2 Data Cache per GPU (Total Tex Cache) */
1385	if (adev->gfx.config.gc_gl2c_per_gpu) {
1386		pcache_info[i].cache_size = adev->gfx.config.gc_gl2c_per_gpu;
1387		pcache_info[i].cache_level = 2;
1388		pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED |
1389					CRAT_CACHE_FLAGS_DATA_CACHE |
1390					CRAT_CACHE_FLAGS_SIMD_CACHE);
1391		pcache_info[i].num_cu_shared = adev->gfx.config.max_cu_per_sh;
1392		i++;
1393	}
1394	/* L3 Data Cache per GPU */
1395	if (adev->gmc.mall_size) {
1396		pcache_info[i].cache_size = adev->gmc.mall_size / 1024;
1397		pcache_info[i].cache_level = 3;
1398		pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED |
1399					CRAT_CACHE_FLAGS_DATA_CACHE |
1400					CRAT_CACHE_FLAGS_SIMD_CACHE);
1401		pcache_info[i].num_cu_shared = adev->gfx.config.max_cu_per_sh;
1402		i++;
1403	}
1404	return i;
1405}
1406
1407static int kfd_fill_gpu_cache_info_from_gfx_config_v2(struct kfd_dev *kdev,
1408						   struct kfd_gpu_cache_info *pcache_info)
1409{
1410	struct amdgpu_device *adev = kdev->adev;
1411	int i = 0;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1412
1413	/* TCP L1 Cache per CU */
1414	if (adev->gfx.config.gc_tcp_size_per_cu) {
1415		pcache_info[i].cache_size = adev->gfx.config.gc_tcp_size_per_cu;
1416		pcache_info[i].cache_level = 1;
1417		pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED |
1418					CRAT_CACHE_FLAGS_DATA_CACHE |
1419					CRAT_CACHE_FLAGS_SIMD_CACHE);
1420		pcache_info[i].num_cu_shared = 1;
1421		i++;
1422	}
1423	/* Scalar L1 Instruction Cache per SQC */
1424	if (adev->gfx.config.gc_l1_instruction_cache_size_per_sqc) {
1425		pcache_info[i].cache_size =
1426			adev->gfx.config.gc_l1_instruction_cache_size_per_sqc;
1427		pcache_info[i].cache_level = 1;
1428		pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED |
1429					CRAT_CACHE_FLAGS_INST_CACHE |
1430					CRAT_CACHE_FLAGS_SIMD_CACHE);
1431		pcache_info[i].num_cu_shared = adev->gfx.config.gc_num_cu_per_sqc;
1432		i++;
1433	}
1434	/* Scalar L1 Data Cache per SQC */
1435	if (adev->gfx.config.gc_l1_data_cache_size_per_sqc) {
1436		pcache_info[i].cache_size = adev->gfx.config.gc_l1_data_cache_size_per_sqc;
1437		pcache_info[i].cache_level = 1;
1438		pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED |
1439					CRAT_CACHE_FLAGS_DATA_CACHE |
1440					CRAT_CACHE_FLAGS_SIMD_CACHE);
1441		pcache_info[i].num_cu_shared = adev->gfx.config.gc_num_cu_per_sqc;
1442		i++;
1443	}
1444	/* L2 Data Cache per GPU (Total Tex Cache) */
1445	if (adev->gfx.config.gc_tcc_size) {
1446		pcache_info[i].cache_size = adev->gfx.config.gc_tcc_size;
1447		pcache_info[i].cache_level = 2;
1448		pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED |
1449					CRAT_CACHE_FLAGS_DATA_CACHE |
1450					CRAT_CACHE_FLAGS_SIMD_CACHE);
1451		pcache_info[i].num_cu_shared = adev->gfx.config.max_cu_per_sh;
1452		i++;
1453	}
1454	/* L3 Data Cache per GPU */
1455	if (adev->gmc.mall_size) {
1456		pcache_info[i].cache_size = adev->gmc.mall_size / 1024;
1457		pcache_info[i].cache_level = 3;
1458		pcache_info[i].flags = (CRAT_CACHE_FLAGS_ENABLED |
1459					CRAT_CACHE_FLAGS_DATA_CACHE |
1460					CRAT_CACHE_FLAGS_SIMD_CACHE);
1461		pcache_info[i].num_cu_shared = adev->gfx.config.max_cu_per_sh;
1462		i++;
1463	}
1464	return i;
1465}
1466
1467int kfd_get_gpu_cache_info(struct kfd_node *kdev, struct kfd_gpu_cache_info **pcache_info)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1468{
 
1469	int num_of_cache_types = 0;
 
 
 
 
 
1470
1471	switch (kdev->adev->asic_type) {
1472	case CHIP_KAVERI:
1473		*pcache_info = kaveri_cache_info;
1474		num_of_cache_types = ARRAY_SIZE(kaveri_cache_info);
1475		break;
1476	case CHIP_HAWAII:
1477		*pcache_info = hawaii_cache_info;
1478		num_of_cache_types = ARRAY_SIZE(hawaii_cache_info);
1479		break;
1480	case CHIP_CARRIZO:
1481		*pcache_info = carrizo_cache_info;
1482		num_of_cache_types = ARRAY_SIZE(carrizo_cache_info);
1483		break;
1484	case CHIP_TONGA:
1485		*pcache_info = tonga_cache_info;
1486		num_of_cache_types = ARRAY_SIZE(tonga_cache_info);
1487		break;
1488	case CHIP_FIJI:
1489		*pcache_info = fiji_cache_info;
1490		num_of_cache_types = ARRAY_SIZE(fiji_cache_info);
1491		break;
1492	case CHIP_POLARIS10:
1493		*pcache_info = polaris10_cache_info;
1494		num_of_cache_types = ARRAY_SIZE(polaris10_cache_info);
1495		break;
1496	case CHIP_POLARIS11:
1497		*pcache_info = polaris11_cache_info;
1498		num_of_cache_types = ARRAY_SIZE(polaris11_cache_info);
1499		break;
1500	case CHIP_POLARIS12:
1501		*pcache_info = polaris12_cache_info;
1502		num_of_cache_types = ARRAY_SIZE(polaris12_cache_info);
1503		break;
1504	case CHIP_VEGAM:
1505		*pcache_info = vegam_cache_info;
1506		num_of_cache_types = ARRAY_SIZE(vegam_cache_info);
1507		break;
1508	default:
1509		switch (KFD_GC_VERSION(kdev)) {
1510		case IP_VERSION(9, 0, 1):
1511			*pcache_info = vega10_cache_info;
1512			num_of_cache_types = ARRAY_SIZE(vega10_cache_info);
1513			break;
1514		case IP_VERSION(9, 2, 1):
1515			*pcache_info = vega12_cache_info;
1516			num_of_cache_types = ARRAY_SIZE(vega12_cache_info);
1517			break;
1518		case IP_VERSION(9, 4, 0):
1519		case IP_VERSION(9, 4, 1):
1520			*pcache_info = vega20_cache_info;
1521			num_of_cache_types = ARRAY_SIZE(vega20_cache_info);
1522			break;
1523		case IP_VERSION(9, 4, 2):
1524			*pcache_info = aldebaran_cache_info;
1525			num_of_cache_types = ARRAY_SIZE(aldebaran_cache_info);
1526			break;
1527		case IP_VERSION(9, 4, 3):
1528			num_of_cache_types =
1529				kfd_fill_gpu_cache_info_from_gfx_config_v2(kdev->kfd,
1530									*pcache_info);
1531			break;
1532		case IP_VERSION(9, 1, 0):
1533		case IP_VERSION(9, 2, 2):
1534			*pcache_info = raven_cache_info;
1535			num_of_cache_types = ARRAY_SIZE(raven_cache_info);
1536			break;
1537		case IP_VERSION(9, 3, 0):
1538			*pcache_info = renoir_cache_info;
1539			num_of_cache_types = ARRAY_SIZE(renoir_cache_info);
1540			break;
1541		case IP_VERSION(10, 1, 10):
1542		case IP_VERSION(10, 1, 2):
1543		case IP_VERSION(10, 1, 3):
1544		case IP_VERSION(10, 1, 4):
1545			*pcache_info = navi10_cache_info;
1546			num_of_cache_types = ARRAY_SIZE(navi10_cache_info);
1547			break;
1548		case IP_VERSION(10, 1, 1):
1549			*pcache_info = navi14_cache_info;
1550			num_of_cache_types = ARRAY_SIZE(navi14_cache_info);
1551			break;
1552		case IP_VERSION(10, 3, 0):
1553			*pcache_info = sienna_cichlid_cache_info;
1554			num_of_cache_types = ARRAY_SIZE(sienna_cichlid_cache_info);
1555			break;
1556		case IP_VERSION(10, 3, 2):
1557			*pcache_info = navy_flounder_cache_info;
1558			num_of_cache_types = ARRAY_SIZE(navy_flounder_cache_info);
1559			break;
1560		case IP_VERSION(10, 3, 4):
1561			*pcache_info = dimgrey_cavefish_cache_info;
1562			num_of_cache_types = ARRAY_SIZE(dimgrey_cavefish_cache_info);
1563			break;
1564		case IP_VERSION(10, 3, 1):
1565			*pcache_info = vangogh_cache_info;
1566			num_of_cache_types = ARRAY_SIZE(vangogh_cache_info);
1567			break;
1568		case IP_VERSION(10, 3, 5):
1569			*pcache_info = beige_goby_cache_info;
1570			num_of_cache_types = ARRAY_SIZE(beige_goby_cache_info);
1571			break;
1572		case IP_VERSION(10, 3, 3):
1573			*pcache_info = yellow_carp_cache_info;
1574			num_of_cache_types = ARRAY_SIZE(yellow_carp_cache_info);
1575			break;
1576		case IP_VERSION(10, 3, 6):
1577			*pcache_info = gc_10_3_6_cache_info;
1578			num_of_cache_types = ARRAY_SIZE(gc_10_3_6_cache_info);
1579			break;
1580		case IP_VERSION(10, 3, 7):
1581			*pcache_info = gfx1037_cache_info;
1582			num_of_cache_types = ARRAY_SIZE(gfx1037_cache_info);
1583			break;
1584		case IP_VERSION(11, 0, 0):
1585		case IP_VERSION(11, 0, 1):
1586		case IP_VERSION(11, 0, 2):
1587		case IP_VERSION(11, 0, 3):
1588		case IP_VERSION(11, 0, 4):
1589		case IP_VERSION(11, 5, 0):
1590			num_of_cache_types =
1591				kfd_fill_gpu_cache_info_from_gfx_config(kdev->kfd, *pcache_info);
1592			break;
1593		default:
1594			*pcache_info = dummy_cache_info;
1595			num_of_cache_types = ARRAY_SIZE(dummy_cache_info);
1596			pr_warn("dummy cache info is used temporarily and real cache info need update later.\n");
1597			break;
1598		}
1599	}
1600	return num_of_cache_types;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1601}
1602
1603/* Memory required to create Virtual CRAT.
1604 * Since there is no easy way to predict the amount of memory required, the
1605 * following amount is allocated for GPU Virtual CRAT. This is
1606 * expected to cover all known conditions. But to be safe additional check
1607 * is put in the code to ensure we don't overwrite.
1608 */
1609#define VCRAT_SIZE_FOR_GPU	(4 * PAGE_SIZE)
 
1610
1611/* kfd_fill_cu_for_cpu - Fill in Compute info for the given CPU NUMA node
1612 *
1613 *	@numa_node_id: CPU NUMA node id
1614 *	@avail_size: Available size in the memory
1615 *	@sub_type_hdr: Memory into which compute info will be filled in
1616 *
1617 *	Return 0 if successful else return -ve value
1618 */
1619static int kfd_fill_cu_for_cpu(int numa_node_id, int *avail_size,
1620				int proximity_domain,
1621				struct crat_subtype_computeunit *sub_type_hdr)
1622{
1623	const struct cpumask *cpumask;
1624
1625	*avail_size -= sizeof(struct crat_subtype_computeunit);
1626	if (*avail_size < 0)
1627		return -ENOMEM;
1628
1629	memset(sub_type_hdr, 0, sizeof(struct crat_subtype_computeunit));
1630
1631	/* Fill in subtype header data */
1632	sub_type_hdr->type = CRAT_SUBTYPE_COMPUTEUNIT_AFFINITY;
1633	sub_type_hdr->length = sizeof(struct crat_subtype_computeunit);
1634	sub_type_hdr->flags = CRAT_SUBTYPE_FLAGS_ENABLED;
1635
1636	cpumask = cpumask_of_node(numa_node_id);
1637
1638	/* Fill in CU data */
1639	sub_type_hdr->flags |= CRAT_CU_FLAGS_CPU_PRESENT;
1640	sub_type_hdr->proximity_domain = proximity_domain;
1641	sub_type_hdr->processor_id_low = kfd_numa_node_to_apic_id(numa_node_id);
1642	if (sub_type_hdr->processor_id_low == -1)
1643		return -EINVAL;
1644
1645	sub_type_hdr->num_cpu_cores = cpumask_weight(cpumask);
1646
1647	return 0;
1648}
1649
1650/* kfd_fill_mem_info_for_cpu - Fill in Memory info for the given CPU NUMA node
1651 *
1652 *	@numa_node_id: CPU NUMA node id
1653 *	@avail_size: Available size in the memory
1654 *	@sub_type_hdr: Memory into which compute info will be filled in
1655 *
1656 *	Return 0 if successful else return -ve value
1657 */
1658static int kfd_fill_mem_info_for_cpu(int numa_node_id, int *avail_size,
1659			int proximity_domain,
1660			struct crat_subtype_memory *sub_type_hdr)
1661{
1662	uint64_t mem_in_bytes = 0;
1663	pg_data_t *pgdat;
1664	int zone_type;
1665
1666	*avail_size -= sizeof(struct crat_subtype_memory);
1667	if (*avail_size < 0)
1668		return -ENOMEM;
1669
1670	memset(sub_type_hdr, 0, sizeof(struct crat_subtype_memory));
1671
1672	/* Fill in subtype header data */
1673	sub_type_hdr->type = CRAT_SUBTYPE_MEMORY_AFFINITY;
1674	sub_type_hdr->length = sizeof(struct crat_subtype_memory);
1675	sub_type_hdr->flags = CRAT_SUBTYPE_FLAGS_ENABLED;
1676
1677	/* Fill in Memory Subunit data */
1678
1679	/* Unlike si_meminfo, si_meminfo_node is not exported. So
1680	 * the following lines are duplicated from si_meminfo_node
1681	 * function
1682	 */
1683	pgdat = NODE_DATA(numa_node_id);
1684	for (zone_type = 0; zone_type < MAX_NR_ZONES; zone_type++)
1685		mem_in_bytes += zone_managed_pages(&pgdat->node_zones[zone_type]);
1686	mem_in_bytes <<= PAGE_SHIFT;
1687
1688	sub_type_hdr->length_low = lower_32_bits(mem_in_bytes);
1689	sub_type_hdr->length_high = upper_32_bits(mem_in_bytes);
1690	sub_type_hdr->proximity_domain = proximity_domain;
1691
1692	return 0;
1693}
1694
1695#ifdef CONFIG_X86_64
1696static int kfd_fill_iolink_info_for_cpu(int numa_node_id, int *avail_size,
1697				uint32_t *num_entries,
1698				struct crat_subtype_iolink *sub_type_hdr)
1699{
1700	int nid;
1701	struct cpuinfo_x86 *c = &cpu_data(0);
1702	uint8_t link_type;
1703
1704	if (c->x86_vendor == X86_VENDOR_AMD)
1705		link_type = CRAT_IOLINK_TYPE_HYPERTRANSPORT;
1706	else
1707		link_type = CRAT_IOLINK_TYPE_QPI_1_1;
1708
1709	*num_entries = 0;
1710
1711	/* Create IO links from this node to other CPU nodes */
1712	for_each_online_node(nid) {
1713		if (nid == numa_node_id) /* node itself */
1714			continue;
1715
1716		*avail_size -= sizeof(struct crat_subtype_iolink);
1717		if (*avail_size < 0)
1718			return -ENOMEM;
1719
1720		memset(sub_type_hdr, 0, sizeof(struct crat_subtype_iolink));
1721
1722		/* Fill in subtype header data */
1723		sub_type_hdr->type = CRAT_SUBTYPE_IOLINK_AFFINITY;
1724		sub_type_hdr->length = sizeof(struct crat_subtype_iolink);
1725		sub_type_hdr->flags = CRAT_SUBTYPE_FLAGS_ENABLED;
1726
1727		/* Fill in IO link data */
1728		sub_type_hdr->proximity_domain_from = numa_node_id;
1729		sub_type_hdr->proximity_domain_to = nid;
1730		sub_type_hdr->io_interface_type = link_type;
1731
1732		(*num_entries)++;
1733		sub_type_hdr++;
1734	}
1735
1736	return 0;
1737}
1738#endif
1739
1740/* kfd_create_vcrat_image_cpu - Create Virtual CRAT for CPU
1741 *
1742 *	@pcrat_image: Fill in VCRAT for CPU
1743 *	@size:	[IN] allocated size of crat_image.
1744 *		[OUT] actual size of data filled in crat_image
1745 */
1746static int kfd_create_vcrat_image_cpu(void *pcrat_image, size_t *size)
1747{
1748	struct crat_header *crat_table = (struct crat_header *)pcrat_image;
1749	struct acpi_table_header *acpi_table;
1750	acpi_status status;
1751	struct crat_subtype_generic *sub_type_hdr;
1752	int avail_size = *size;
1753	int numa_node_id;
1754#ifdef CONFIG_X86_64
1755	uint32_t entries = 0;
1756#endif
1757	int ret = 0;
1758
1759	if (!pcrat_image)
1760		return -EINVAL;
1761
1762	/* Fill in CRAT Header.
1763	 * Modify length and total_entries as subunits are added.
1764	 */
1765	avail_size -= sizeof(struct crat_header);
1766	if (avail_size < 0)
1767		return -ENOMEM;
1768
1769	memset(crat_table, 0, sizeof(struct crat_header));
1770	memcpy(&crat_table->signature, CRAT_SIGNATURE,
1771			sizeof(crat_table->signature));
1772	crat_table->length = sizeof(struct crat_header);
1773
1774	status = acpi_get_table("DSDT", 0, &acpi_table);
1775	if (status != AE_OK)
1776		pr_warn("DSDT table not found for OEM information\n");
1777	else {
1778		crat_table->oem_revision = acpi_table->revision;
1779		memcpy(crat_table->oem_id, acpi_table->oem_id,
1780				CRAT_OEMID_LENGTH);
1781		memcpy(crat_table->oem_table_id, acpi_table->oem_table_id,
1782				CRAT_OEMTABLEID_LENGTH);
1783		acpi_put_table(acpi_table);
1784	}
1785	crat_table->total_entries = 0;
1786	crat_table->num_domains = 0;
1787
1788	sub_type_hdr = (struct crat_subtype_generic *)(crat_table+1);
1789
1790	for_each_online_node(numa_node_id) {
1791		if (kfd_numa_node_to_apic_id(numa_node_id) == -1)
1792			continue;
1793
1794		/* Fill in Subtype: Compute Unit */
1795		ret = kfd_fill_cu_for_cpu(numa_node_id, &avail_size,
1796			crat_table->num_domains,
1797			(struct crat_subtype_computeunit *)sub_type_hdr);
1798		if (ret < 0)
1799			return ret;
1800		crat_table->length += sub_type_hdr->length;
1801		crat_table->total_entries++;
1802
1803		sub_type_hdr = (typeof(sub_type_hdr))((char *)sub_type_hdr +
1804			sub_type_hdr->length);
1805
1806		/* Fill in Subtype: Memory */
1807		ret = kfd_fill_mem_info_for_cpu(numa_node_id, &avail_size,
1808			crat_table->num_domains,
1809			(struct crat_subtype_memory *)sub_type_hdr);
1810		if (ret < 0)
1811			return ret;
1812		crat_table->length += sub_type_hdr->length;
1813		crat_table->total_entries++;
1814
1815		sub_type_hdr = (typeof(sub_type_hdr))((char *)sub_type_hdr +
1816			sub_type_hdr->length);
1817
1818		/* Fill in Subtype: IO Link */
1819#ifdef CONFIG_X86_64
1820		ret = kfd_fill_iolink_info_for_cpu(numa_node_id, &avail_size,
1821				&entries,
1822				(struct crat_subtype_iolink *)sub_type_hdr);
1823		if (ret < 0)
1824			return ret;
 
 
1825
1826		if (entries) {
1827			crat_table->length += (sub_type_hdr->length * entries);
1828			crat_table->total_entries += entries;
1829
1830			sub_type_hdr = (typeof(sub_type_hdr))((char *)sub_type_hdr +
1831					sub_type_hdr->length * entries);
1832		}
1833#else
1834		pr_info("IO link not available for non x86 platforms\n");
1835#endif
1836
1837		crat_table->num_domains++;
1838	}
1839
1840	/* TODO: Add cache Subtype for CPU.
1841	 * Currently, CPU cache information is available in function
1842	 * detect_cache_attributes(cpu) defined in the file
1843	 * ./arch/x86/kernel/cpu/intel_cacheinfo.c. This function is not
1844	 * exported and to get the same information the code needs to be
1845	 * duplicated.
1846	 */
1847
1848	*size = crat_table->length;
1849	pr_info("Virtual CRAT table created for CPU\n");
1850
1851	return 0;
1852}
1853
1854static int kfd_fill_gpu_memory_affinity(int *avail_size,
1855		struct kfd_node *kdev, uint8_t type, uint64_t size,
1856		struct crat_subtype_memory *sub_type_hdr,
1857		uint32_t proximity_domain,
1858		const struct kfd_local_mem_info *local_mem_info)
1859{
1860	*avail_size -= sizeof(struct crat_subtype_memory);
1861	if (*avail_size < 0)
1862		return -ENOMEM;
1863
1864	memset((void *)sub_type_hdr, 0, sizeof(struct crat_subtype_memory));
1865	sub_type_hdr->type = CRAT_SUBTYPE_MEMORY_AFFINITY;
1866	sub_type_hdr->length = sizeof(struct crat_subtype_memory);
1867	sub_type_hdr->flags |= CRAT_SUBTYPE_FLAGS_ENABLED;
1868
1869	sub_type_hdr->proximity_domain = proximity_domain;
1870
1871	pr_debug("Fill gpu memory affinity - type 0x%x size 0x%llx\n",
1872			type, size);
1873
1874	sub_type_hdr->length_low = lower_32_bits(size);
1875	sub_type_hdr->length_high = upper_32_bits(size);
1876
1877	sub_type_hdr->width = local_mem_info->vram_width;
1878	sub_type_hdr->visibility_type = type;
1879
1880	return 0;
1881}
1882
1883#ifdef CONFIG_ACPI_NUMA
1884static void kfd_find_numa_node_in_srat(struct kfd_node *kdev)
1885{
1886	struct acpi_table_header *table_header = NULL;
1887	struct acpi_subtable_header *sub_header = NULL;
1888	unsigned long table_end, subtable_len;
1889	u32 pci_id = pci_domain_nr(kdev->adev->pdev->bus) << 16 |
1890			pci_dev_id(kdev->adev->pdev);
1891	u32 bdf;
1892	acpi_status status;
1893	struct acpi_srat_cpu_affinity *cpu;
1894	struct acpi_srat_generic_affinity *gpu;
1895	int pxm = 0, max_pxm = 0;
1896	int numa_node = NUMA_NO_NODE;
1897	bool found = false;
1898
1899	/* Fetch the SRAT table from ACPI */
1900	status = acpi_get_table(ACPI_SIG_SRAT, 0, &table_header);
1901	if (status == AE_NOT_FOUND) {
1902		pr_warn("SRAT table not found\n");
1903		return;
1904	} else if (ACPI_FAILURE(status)) {
1905		const char *err = acpi_format_exception(status);
1906		pr_err("SRAT table error: %s\n", err);
1907		return;
1908	}
1909
1910	table_end = (unsigned long)table_header + table_header->length;
1911
1912	/* Parse all entries looking for a match. */
1913	sub_header = (struct acpi_subtable_header *)
1914			((unsigned long)table_header +
1915			sizeof(struct acpi_table_srat));
1916	subtable_len = sub_header->length;
1917
1918	while (((unsigned long)sub_header) + subtable_len  < table_end) {
1919		/*
1920		 * If length is 0, break from this loop to avoid
1921		 * infinite loop.
1922		 */
1923		if (subtable_len == 0) {
1924			pr_err("SRAT invalid zero length\n");
1925			break;
1926		}
1927
1928		switch (sub_header->type) {
1929		case ACPI_SRAT_TYPE_CPU_AFFINITY:
1930			cpu = (struct acpi_srat_cpu_affinity *)sub_header;
1931			pxm = *((u32 *)cpu->proximity_domain_hi) << 8 |
1932					cpu->proximity_domain_lo;
1933			if (pxm > max_pxm)
1934				max_pxm = pxm;
1935			break;
1936		case ACPI_SRAT_TYPE_GENERIC_AFFINITY:
1937			gpu = (struct acpi_srat_generic_affinity *)sub_header;
1938			bdf = *((u16 *)(&gpu->device_handle[0])) << 16 |
1939					*((u16 *)(&gpu->device_handle[2]));
1940			if (bdf == pci_id) {
1941				found = true;
1942				numa_node = pxm_to_node(gpu->proximity_domain);
1943			}
1944			break;
1945		default:
1946			break;
1947		}
1948
1949		if (found)
1950			break;
1951
1952		sub_header = (struct acpi_subtable_header *)
1953				((unsigned long)sub_header + subtable_len);
1954		subtable_len = sub_header->length;
1955	}
1956
1957	acpi_put_table(table_header);
1958
1959	/* Workaround bad cpu-gpu binding case */
1960	if (found && (numa_node < 0 ||
1961			numa_node > pxm_to_node(max_pxm)))
1962		numa_node = 0;
1963
1964	if (numa_node != NUMA_NO_NODE)
1965		set_dev_node(&kdev->adev->pdev->dev, numa_node);
1966}
1967#endif
1968
1969#define KFD_CRAT_INTRA_SOCKET_WEIGHT	13
1970#define KFD_CRAT_XGMI_WEIGHT		15
1971
1972/* kfd_fill_gpu_direct_io_link - Fill in direct io link from GPU
1973 * to its NUMA node
1974 *	@avail_size: Available size in the memory
1975 *	@kdev - [IN] GPU device
1976 *	@sub_type_hdr: Memory into which io link info will be filled in
1977 *	@proximity_domain - proximity domain of the GPU node
1978 *
1979 *	Return 0 if successful else return -ve value
1980 */
1981static int kfd_fill_gpu_direct_io_link_to_cpu(int *avail_size,
1982			struct kfd_node *kdev,
1983			struct crat_subtype_iolink *sub_type_hdr,
1984			uint32_t proximity_domain)
1985{
1986	*avail_size -= sizeof(struct crat_subtype_iolink);
1987	if (*avail_size < 0)
1988		return -ENOMEM;
1989
1990	memset((void *)sub_type_hdr, 0, sizeof(struct crat_subtype_iolink));
1991
1992	/* Fill in subtype header data */
1993	sub_type_hdr->type = CRAT_SUBTYPE_IOLINK_AFFINITY;
1994	sub_type_hdr->length = sizeof(struct crat_subtype_iolink);
1995	sub_type_hdr->flags |= CRAT_SUBTYPE_FLAGS_ENABLED;
1996	if (kfd_dev_is_large_bar(kdev))
1997		sub_type_hdr->flags |= CRAT_IOLINK_FLAGS_BI_DIRECTIONAL;
1998
1999	/* Fill in IOLINK subtype.
2000	 * TODO: Fill-in other fields of iolink subtype
2001	 */
2002	if (kdev->adev->gmc.xgmi.connected_to_cpu ||
2003	    (KFD_GC_VERSION(kdev) == IP_VERSION(9, 4, 3) &&
2004	     kdev->adev->smuio.funcs->get_pkg_type(kdev->adev) ==
2005	     AMDGPU_PKG_TYPE_APU)) {
2006		bool ext_cpu = KFD_GC_VERSION(kdev) != IP_VERSION(9, 4, 3);
2007		int mem_bw = 819200, weight = ext_cpu ? KFD_CRAT_XGMI_WEIGHT :
2008							KFD_CRAT_INTRA_SOCKET_WEIGHT;
2009		uint32_t bandwidth = ext_cpu ? amdgpu_amdkfd_get_xgmi_bandwidth_mbytes(
2010							kdev->adev, NULL, true) : mem_bw;
2011
2012		/*
2013		 * with host gpu xgmi link, host can access gpu memory whether
2014		 * or not pcie bar type is large, so always create bidirectional
2015		 * io link.
2016		 */
2017		sub_type_hdr->flags |= CRAT_IOLINK_FLAGS_BI_DIRECTIONAL;
2018		sub_type_hdr->io_interface_type = CRAT_IOLINK_TYPE_XGMI;
2019		sub_type_hdr->weight_xgmi = weight;
2020		sub_type_hdr->minimum_bandwidth_mbs = bandwidth;
2021		sub_type_hdr->maximum_bandwidth_mbs = bandwidth;
2022	} else {
2023		sub_type_hdr->io_interface_type = CRAT_IOLINK_TYPE_PCIEXPRESS;
2024		sub_type_hdr->minimum_bandwidth_mbs =
2025				amdgpu_amdkfd_get_pcie_bandwidth_mbytes(kdev->adev, true);
2026		sub_type_hdr->maximum_bandwidth_mbs =
2027				amdgpu_amdkfd_get_pcie_bandwidth_mbytes(kdev->adev, false);
2028	}
2029
2030	sub_type_hdr->proximity_domain_from = proximity_domain;
2031
2032#ifdef CONFIG_ACPI_NUMA
2033	if (kdev->adev->pdev->dev.numa_node == NUMA_NO_NODE &&
2034	    num_possible_nodes() > 1)
2035		kfd_find_numa_node_in_srat(kdev);
2036#endif
2037#ifdef CONFIG_NUMA
2038	if (kdev->adev->pdev->dev.numa_node == NUMA_NO_NODE)
2039		sub_type_hdr->proximity_domain_to = 0;
2040	else
2041		sub_type_hdr->proximity_domain_to = kdev->adev->pdev->dev.numa_node;
2042#else
2043	sub_type_hdr->proximity_domain_to = 0;
2044#endif
2045	return 0;
2046}
2047
2048static int kfd_fill_gpu_xgmi_link_to_gpu(int *avail_size,
2049			struct kfd_node *kdev,
2050			struct kfd_node *peer_kdev,
2051			struct crat_subtype_iolink *sub_type_hdr,
2052			uint32_t proximity_domain_from,
2053			uint32_t proximity_domain_to)
2054{
2055	bool use_ta_info = kdev->kfd->num_nodes == 1;
2056
2057	*avail_size -= sizeof(struct crat_subtype_iolink);
2058	if (*avail_size < 0)
2059		return -ENOMEM;
2060
2061	memset((void *)sub_type_hdr, 0, sizeof(struct crat_subtype_iolink));
2062
2063	sub_type_hdr->type = CRAT_SUBTYPE_IOLINK_AFFINITY;
2064	sub_type_hdr->length = sizeof(struct crat_subtype_iolink);
2065	sub_type_hdr->flags |= CRAT_SUBTYPE_FLAGS_ENABLED |
2066			       CRAT_IOLINK_FLAGS_BI_DIRECTIONAL;
2067
2068	sub_type_hdr->io_interface_type = CRAT_IOLINK_TYPE_XGMI;
2069	sub_type_hdr->proximity_domain_from = proximity_domain_from;
2070	sub_type_hdr->proximity_domain_to = proximity_domain_to;
2071
2072	if (use_ta_info) {
2073		sub_type_hdr->weight_xgmi = KFD_CRAT_XGMI_WEIGHT *
2074			amdgpu_amdkfd_get_xgmi_hops_count(kdev->adev, peer_kdev->adev);
2075		sub_type_hdr->maximum_bandwidth_mbs =
2076			amdgpu_amdkfd_get_xgmi_bandwidth_mbytes(kdev->adev,
2077							peer_kdev->adev, false);
2078		sub_type_hdr->minimum_bandwidth_mbs = sub_type_hdr->maximum_bandwidth_mbs ?
2079			amdgpu_amdkfd_get_xgmi_bandwidth_mbytes(kdev->adev, NULL, true) : 0;
2080	} else {
2081		bool is_single_hop = kdev->kfd == peer_kdev->kfd;
2082		int weight = is_single_hop ? KFD_CRAT_INTRA_SOCKET_WEIGHT :
2083			(2 * KFD_CRAT_INTRA_SOCKET_WEIGHT) + KFD_CRAT_XGMI_WEIGHT;
2084		int mem_bw = 819200;
2085
2086		sub_type_hdr->weight_xgmi = weight;
2087		sub_type_hdr->maximum_bandwidth_mbs = is_single_hop ? mem_bw : 0;
2088		sub_type_hdr->minimum_bandwidth_mbs = is_single_hop ? mem_bw : 0;
2089	}
2090
2091	return 0;
2092}
2093
2094/* kfd_create_vcrat_image_gpu - Create Virtual CRAT for CPU
2095 *
2096 *	@pcrat_image: Fill in VCRAT for GPU
2097 *	@size:	[IN] allocated size of crat_image.
2098 *		[OUT] actual size of data filled in crat_image
2099 */
2100static int kfd_create_vcrat_image_gpu(void *pcrat_image,
2101				      size_t *size, struct kfd_node *kdev,
2102				      uint32_t proximity_domain)
2103{
2104	struct crat_header *crat_table = (struct crat_header *)pcrat_image;
2105	struct amdgpu_gfx_config *gfx_info = &kdev->adev->gfx.config;
2106	struct amdgpu_cu_info *cu_info = &kdev->adev->gfx.cu_info;
2107	struct crat_subtype_generic *sub_type_hdr;
2108	struct kfd_local_mem_info local_mem_info;
2109	struct kfd_topology_device *peer_dev;
2110	struct crat_subtype_computeunit *cu;
 
2111	int avail_size = *size;
2112	uint32_t total_num_of_cu;
2113	uint32_t nid = 0;
 
2114	int ret = 0;
 
2115
2116	if (!pcrat_image || avail_size < VCRAT_SIZE_FOR_GPU)
2117		return -EINVAL;
2118
2119	/* Fill the CRAT Header.
2120	 * Modify length and total_entries as subunits are added.
2121	 */
2122	avail_size -= sizeof(struct crat_header);
2123	if (avail_size < 0)
2124		return -ENOMEM;
2125
2126	memset(crat_table, 0, sizeof(struct crat_header));
2127
2128	memcpy(&crat_table->signature, CRAT_SIGNATURE,
2129			sizeof(crat_table->signature));
2130	/* Change length as we add more subtypes*/
2131	crat_table->length = sizeof(struct crat_header);
2132	crat_table->num_domains = 1;
2133	crat_table->total_entries = 0;
2134
2135	/* Fill in Subtype: Compute Unit
2136	 * First fill in the sub type header and then sub type data
2137	 */
2138	avail_size -= sizeof(struct crat_subtype_computeunit);
2139	if (avail_size < 0)
2140		return -ENOMEM;
2141
2142	sub_type_hdr = (struct crat_subtype_generic *)(crat_table + 1);
2143	memset(sub_type_hdr, 0, sizeof(struct crat_subtype_computeunit));
2144
2145	sub_type_hdr->type = CRAT_SUBTYPE_COMPUTEUNIT_AFFINITY;
2146	sub_type_hdr->length = sizeof(struct crat_subtype_computeunit);
2147	sub_type_hdr->flags = CRAT_SUBTYPE_FLAGS_ENABLED;
2148
2149	/* Fill CU subtype data */
2150	cu = (struct crat_subtype_computeunit *)sub_type_hdr;
2151	cu->flags |= CRAT_CU_FLAGS_GPU_PRESENT;
2152	cu->proximity_domain = proximity_domain;
2153
2154	cu->num_simd_per_cu = cu_info->simd_per_cu;
2155	cu->num_simd_cores = cu_info->simd_per_cu *
2156			(cu_info->number / kdev->kfd->num_nodes);
2157	cu->max_waves_simd = cu_info->max_waves_per_simd;
2158
2159	cu->wave_front_size = cu_info->wave_front_size;
2160	cu->array_count = gfx_info->max_sh_per_se *
2161		gfx_info->max_shader_engines;
2162	total_num_of_cu = (cu->array_count * gfx_info->max_cu_per_sh);
2163	cu->processor_id_low = get_and_inc_gpu_processor_id(total_num_of_cu);
2164	cu->num_cu_per_array = gfx_info->max_cu_per_sh;
2165	cu->max_slots_scatch_cu = cu_info->max_scratch_slots_per_cu;
2166	cu->num_banks = gfx_info->max_shader_engines;
2167	cu->lds_size_in_kb = cu_info->lds_size;
2168
2169	cu->hsa_capability = 0;
2170
 
 
 
 
 
 
2171	crat_table->length += sub_type_hdr->length;
2172	crat_table->total_entries++;
2173
2174	/* Fill in Subtype: Memory. Only on systems with large BAR (no
2175	 * private FB), report memory as public. On other systems
2176	 * report the total FB size (public+private) as a single
2177	 * private heap.
2178	 */
2179	local_mem_info = kdev->local_mem_info;
2180	sub_type_hdr = (typeof(sub_type_hdr))((char *)sub_type_hdr +
2181			sub_type_hdr->length);
2182
2183	if (kdev->adev->debug_largebar)
2184		local_mem_info.local_mem_size_private = 0;
2185
2186	if (local_mem_info.local_mem_size_private == 0)
2187		ret = kfd_fill_gpu_memory_affinity(&avail_size,
2188				kdev, HSA_MEM_HEAP_TYPE_FB_PUBLIC,
2189				local_mem_info.local_mem_size_public,
2190				(struct crat_subtype_memory *)sub_type_hdr,
2191				proximity_domain,
2192				&local_mem_info);
2193	else
2194		ret = kfd_fill_gpu_memory_affinity(&avail_size,
2195				kdev, HSA_MEM_HEAP_TYPE_FB_PRIVATE,
2196				local_mem_info.local_mem_size_public +
2197				local_mem_info.local_mem_size_private,
2198				(struct crat_subtype_memory *)sub_type_hdr,
2199				proximity_domain,
2200				&local_mem_info);
2201	if (ret < 0)
2202		return ret;
2203
2204	crat_table->length += sizeof(struct crat_subtype_memory);
2205	crat_table->total_entries++;
2206
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2207	/* Fill in Subtype: IO_LINKS
2208	 *  Only direct links are added here which is Link from GPU to
2209	 *  its NUMA node. Indirect links are added by userspace.
2210	 */
2211	sub_type_hdr = (typeof(sub_type_hdr))((char *)sub_type_hdr +
2212		sub_type_hdr->length);
2213	ret = kfd_fill_gpu_direct_io_link_to_cpu(&avail_size, kdev,
2214		(struct crat_subtype_iolink *)sub_type_hdr, proximity_domain);
2215
2216	if (ret < 0)
2217		return ret;
2218
2219	crat_table->length += sub_type_hdr->length;
2220	crat_table->total_entries++;
2221
2222
2223	/* Fill in Subtype: IO_LINKS
2224	 * Direct links from GPU to other GPUs through xGMI.
2225	 * We will loop GPUs that already be processed (with lower value
2226	 * of proximity_domain), add the link for the GPUs with same
2227	 * hive id (from this GPU to other GPU) . The reversed iolink
2228	 * (from other GPU to this GPU) will be added
2229	 * in kfd_parse_subtype_iolink.
2230	 */
2231	if (kdev->kfd->hive_id) {
2232		for (nid = 0; nid < proximity_domain; ++nid) {
2233			peer_dev = kfd_topology_device_by_proximity_domain_no_lock(nid);
2234			if (!peer_dev->gpu)
2235				continue;
2236			if (peer_dev->gpu->kfd->hive_id != kdev->kfd->hive_id)
2237				continue;
2238			sub_type_hdr = (typeof(sub_type_hdr))(
2239				(char *)sub_type_hdr +
2240				sizeof(struct crat_subtype_iolink));
2241			ret = kfd_fill_gpu_xgmi_link_to_gpu(
2242				&avail_size, kdev, peer_dev->gpu,
2243				(struct crat_subtype_iolink *)sub_type_hdr,
2244				proximity_domain, nid);
2245			if (ret < 0)
2246				return ret;
2247			crat_table->length += sub_type_hdr->length;
2248			crat_table->total_entries++;
2249		}
2250	}
2251	*size = crat_table->length;
2252	pr_info("Virtual CRAT table created for GPU\n");
2253
2254	return ret;
2255}
2256
2257/* kfd_create_crat_image_virtual - Allocates memory for CRAT image and
2258 *		creates a Virtual CRAT (VCRAT) image
2259 *
2260 * NOTE: Call kfd_destroy_crat_image to free CRAT image memory
2261 *
2262 *	@crat_image: VCRAT image created because ACPI does not have a
2263 *		     CRAT for this device
2264 *	@size: [OUT] size of virtual crat_image
2265 *	@flags:	COMPUTE_UNIT_CPU - Create VCRAT for CPU device
2266 *		COMPUTE_UNIT_GPU - Create VCRAT for GPU
2267 *		(COMPUTE_UNIT_CPU | COMPUTE_UNIT_GPU) - Create VCRAT for APU
2268 *			-- this option is not currently implemented.
2269 *			The assumption is that all AMD APUs will have CRAT
2270 *	@kdev: Valid kfd_node required if flags contain COMPUTE_UNIT_GPU
2271 *
2272 *	Return 0 if successful else return -ve value
2273 */
2274int kfd_create_crat_image_virtual(void **crat_image, size_t *size,
2275				  int flags, struct kfd_node *kdev,
2276				  uint32_t proximity_domain)
2277{
2278	void *pcrat_image = NULL;
2279	int ret = 0, num_nodes;
2280	size_t dyn_size;
2281
2282	if (!crat_image)
2283		return -EINVAL;
2284
2285	*crat_image = NULL;
2286
2287	/* Allocate the CPU Virtual CRAT size based on the number of online
2288	 * nodes. Allocate VCRAT_SIZE_FOR_GPU for GPU virtual CRAT image.
2289	 * This should cover all the current conditions. A check is put not
2290	 * to overwrite beyond allocated size for GPUs
2291	 */
2292	switch (flags) {
2293	case COMPUTE_UNIT_CPU:
2294		num_nodes = num_online_nodes();
2295		dyn_size = sizeof(struct crat_header) +
2296			num_nodes * (sizeof(struct crat_subtype_computeunit) +
2297			sizeof(struct crat_subtype_memory) +
2298			(num_nodes - 1) * sizeof(struct crat_subtype_iolink));
2299		pcrat_image = kvmalloc(dyn_size, GFP_KERNEL);
2300		if (!pcrat_image)
2301			return -ENOMEM;
2302		*size = dyn_size;
2303		pr_debug("CRAT size is %ld", dyn_size);
2304		ret = kfd_create_vcrat_image_cpu(pcrat_image, size);
2305		break;
2306	case COMPUTE_UNIT_GPU:
2307		if (!kdev)
2308			return -EINVAL;
2309		pcrat_image = kvmalloc(VCRAT_SIZE_FOR_GPU, GFP_KERNEL);
2310		if (!pcrat_image)
2311			return -ENOMEM;
2312		*size = VCRAT_SIZE_FOR_GPU;
2313		ret = kfd_create_vcrat_image_gpu(pcrat_image, size, kdev,
2314						 proximity_domain);
2315		break;
2316	case (COMPUTE_UNIT_CPU | COMPUTE_UNIT_GPU):
2317		/* TODO: */
2318		ret = -EINVAL;
2319		pr_err("VCRAT not implemented for APU\n");
2320		break;
2321	default:
2322		ret = -EINVAL;
2323	}
2324
2325	if (!ret)
2326		*crat_image = pcrat_image;
2327	else
2328		kvfree(pcrat_image);
2329
2330	return ret;
2331}
2332
2333
2334/* kfd_destroy_crat_image
2335 *
2336 *	@crat_image: [IN] - crat_image from kfd_create_crat_image_xxx(..)
2337 *
2338 */
2339void kfd_destroy_crat_image(void *crat_image)
2340{
2341	kvfree(crat_image);
2342}