1 /* 2 * Copyright(c) 2013-2015 Intel Corporation. All rights reserved. 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of version 2 of the GNU General Public License as 6 * published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it will be useful, but 9 * WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 11 * General Public License for more details. 12 */ 13 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 14 #include <linux/platform_device.h> 15 #include <linux/dma-mapping.h> 16 #include <linux/libnvdimm.h> 17 #include <linux/vmalloc.h> 18 #include <linux/device.h> 19 #include <linux/module.h> 20 #include <linux/mutex.h> 21 #include <linux/ndctl.h> 22 #include <linux/sizes.h> 23 #include <linux/list.h> 24 #include <linux/slab.h> 25 #include <nfit.h> 26 #include <nd.h> 27 #include "nfit_test.h" 28 29 /* 30 * Generate an NFIT table to describe the following topology: 31 * 32 * BUS0: Interleaved PMEM regions, and aliasing with BLK regions 33 * 34 * (a) (b) DIMM BLK-REGION 35 * +----------+--------------+----------+---------+ 36 * +------+ | blk2.0 | pm0.0 | blk2.1 | pm1.0 | 0 region2 37 * | imc0 +--+- - - - - region0 - - - -+----------+ + 38 * +--+---+ | blk3.0 | pm0.0 | blk3.1 | pm1.0 | 1 region3 39 * | +----------+--------------v----------v v 40 * +--+---+ | | 41 * | cpu0 | region1 42 * +--+---+ | | 43 * | +-------------------------^----------^ ^ 44 * +--+---+ | blk4.0 | pm1.0 | 2 region4 45 * | imc1 +--+-------------------------+----------+ + 46 * +------+ | blk5.0 | pm1.0 | 3 region5 47 * +-------------------------+----------+-+-------+ 48 * 49 * +--+---+ 50 * | cpu1 | 51 * +--+---+ (Hotplug DIMM) 52 * | +----------------------------------------------+ 53 * +--+---+ | blk6.0/pm7.0 | 4 region6/7 54 * | imc0 +--+----------------------------------------------+ 55 * +------+ 56 * 57 * 58 * *) In this layout we have four dimms and two memory controllers in one 59 * socket. Each unique interface (BLK or PMEM) to DPA space 60 * is identified by a region device with a dynamically assigned id. 61 * 62 * *) The first portion of dimm0 and dimm1 are interleaved as REGION0. 63 * A single PMEM namespace "pm0.0" is created using half of the 64 * REGION0 SPA-range. REGION0 spans dimm0 and dimm1. PMEM namespace 65 * allocate from from the bottom of a region. The unallocated 66 * portion of REGION0 aliases with REGION2 and REGION3. That 67 * unallacted capacity is reclaimed as BLK namespaces ("blk2.0" and 68 * "blk3.0") starting at the base of each DIMM to offset (a) in those 69 * DIMMs. "pm0.0", "blk2.0" and "blk3.0" are free-form readable 70 * names that can be assigned to a namespace. 71 * 72 * *) In the last portion of dimm0 and dimm1 we have an interleaved 73 * SPA range, REGION1, that spans those two dimms as well as dimm2 74 * and dimm3. Some of REGION1 allocated to a PMEM namespace named 75 * "pm1.0" the rest is reclaimed in 4 BLK namespaces (for each 76 * dimm in the interleave set), "blk2.1", "blk3.1", "blk4.0", and 77 * "blk5.0". 78 * 79 * *) The portion of dimm2 and dimm3 that do not participate in the 80 * REGION1 interleaved SPA range (i.e. the DPA address below offset 81 * (b) are also included in the "blk4.0" and "blk5.0" namespaces. 82 * Note, that BLK namespaces need not be contiguous in DPA-space, and 83 * can consume aliased capacity from multiple interleave sets. 84 * 85 * BUS1: Legacy NVDIMM (single contiguous range) 86 * 87 * region2 88 * +---------------------+ 89 * |---------------------| 90 * || pm2.0 || 91 * |---------------------| 92 * +---------------------+ 93 * 94 * *) A NFIT-table may describe a simple system-physical-address range 95 * with no BLK aliasing. This type of region may optionally 96 * reference an NVDIMM. 97 */ 98 enum { 99 NUM_PM = 3, 100 NUM_DCR = 5, 101 NUM_BDW = NUM_DCR, 102 NUM_SPA = NUM_PM + NUM_DCR + NUM_BDW, 103 NUM_MEM = NUM_DCR + NUM_BDW + 2 /* spa0 iset */ + 4 /* spa1 iset */, 104 DIMM_SIZE = SZ_32M, 105 LABEL_SIZE = SZ_128K, 106 SPA0_SIZE = DIMM_SIZE, 107 SPA1_SIZE = DIMM_SIZE*2, 108 SPA2_SIZE = DIMM_SIZE, 109 BDW_SIZE = 64 << 8, 110 DCR_SIZE = 12, 111 NUM_NFITS = 2, /* permit testing multiple NFITs per system */ 112 }; 113 114 struct nfit_test_dcr { 115 __le64 bdw_addr; 116 __le32 bdw_status; 117 __u8 aperature[BDW_SIZE]; 118 }; 119 120 #define NFIT_DIMM_HANDLE(node, socket, imc, chan, dimm) \ 121 (((node & 0xfff) << 16) | ((socket & 0xf) << 12) \ 122 | ((imc & 0xf) << 8) | ((chan & 0xf) << 4) | (dimm & 0xf)) 123 124 static u32 handle[NUM_DCR] = { 125 [0] = NFIT_DIMM_HANDLE(0, 0, 0, 0, 0), 126 [1] = NFIT_DIMM_HANDLE(0, 0, 0, 0, 1), 127 [2] = NFIT_DIMM_HANDLE(0, 0, 1, 0, 0), 128 [3] = NFIT_DIMM_HANDLE(0, 0, 1, 0, 1), 129 [4] = NFIT_DIMM_HANDLE(0, 1, 0, 0, 0), 130 }; 131 132 struct nfit_test { 133 struct acpi_nfit_desc acpi_desc; 134 struct platform_device pdev; 135 struct list_head resources; 136 void *nfit_buf; 137 dma_addr_t nfit_dma; 138 size_t nfit_size; 139 int num_dcr; 140 int num_pm; 141 void **dimm; 142 dma_addr_t *dimm_dma; 143 void **flush; 144 dma_addr_t *flush_dma; 145 void **label; 146 dma_addr_t *label_dma; 147 void **spa_set; 148 dma_addr_t *spa_set_dma; 149 struct nfit_test_dcr **dcr; 150 dma_addr_t *dcr_dma; 151 int (*alloc)(struct nfit_test *t); 152 void (*setup)(struct nfit_test *t); 153 int setup_hotplug; 154 }; 155 156 static struct nfit_test *to_nfit_test(struct device *dev) 157 { 158 struct platform_device *pdev = to_platform_device(dev); 159 160 return container_of(pdev, struct nfit_test, pdev); 161 } 162 163 static int nfit_test_cmd_get_config_size(struct nd_cmd_get_config_size *nd_cmd, 164 unsigned int buf_len) 165 { 166 if (buf_len < sizeof(*nd_cmd)) 167 return -EINVAL; 168 169 nd_cmd->status = 0; 170 nd_cmd->config_size = LABEL_SIZE; 171 nd_cmd->max_xfer = SZ_4K; 172 173 return 0; 174 } 175 176 static int nfit_test_cmd_get_config_data(struct nd_cmd_get_config_data_hdr 177 *nd_cmd, unsigned int buf_len, void *label) 178 { 179 unsigned int len, offset = nd_cmd->in_offset; 180 int rc; 181 182 if (buf_len < sizeof(*nd_cmd)) 183 return -EINVAL; 184 if (offset >= LABEL_SIZE) 185 return -EINVAL; 186 if (nd_cmd->in_length + sizeof(*nd_cmd) > buf_len) 187 return -EINVAL; 188 189 nd_cmd->status = 0; 190 len = min(nd_cmd->in_length, LABEL_SIZE - offset); 191 memcpy(nd_cmd->out_buf, label + offset, len); 192 rc = buf_len - sizeof(*nd_cmd) - len; 193 194 return rc; 195 } 196 197 static int nfit_test_cmd_set_config_data(struct nd_cmd_set_config_hdr *nd_cmd, 198 unsigned int buf_len, void *label) 199 { 200 unsigned int len, offset = nd_cmd->in_offset; 201 u32 *status; 202 int rc; 203 204 if (buf_len < sizeof(*nd_cmd)) 205 return -EINVAL; 206 if (offset >= LABEL_SIZE) 207 return -EINVAL; 208 if (nd_cmd->in_length + sizeof(*nd_cmd) + 4 > buf_len) 209 return -EINVAL; 210 211 status = (void *)nd_cmd + nd_cmd->in_length + sizeof(*nd_cmd); 212 *status = 0; 213 len = min(nd_cmd->in_length, LABEL_SIZE - offset); 214 memcpy(label + offset, nd_cmd->in_buf, len); 215 rc = buf_len - sizeof(*nd_cmd) - (len + 4); 216 217 return rc; 218 } 219 220 static int nfit_test_cmd_ars_cap(struct nd_cmd_ars_cap *nd_cmd, 221 unsigned int buf_len) 222 { 223 if (buf_len < sizeof(*nd_cmd)) 224 return -EINVAL; 225 226 nd_cmd->max_ars_out = 256; 227 nd_cmd->status = (ND_ARS_PERSISTENT | ND_ARS_VOLATILE) << 16; 228 229 return 0; 230 } 231 232 static int nfit_test_cmd_ars_start(struct nd_cmd_ars_start *nd_cmd, 233 unsigned int buf_len) 234 { 235 if (buf_len < sizeof(*nd_cmd)) 236 return -EINVAL; 237 238 nd_cmd->status = 0; 239 240 return 0; 241 } 242 243 static int nfit_test_cmd_ars_status(struct nd_cmd_ars_status *nd_cmd, 244 unsigned int buf_len) 245 { 246 if (buf_len < sizeof(*nd_cmd)) 247 return -EINVAL; 248 249 nd_cmd->out_length = 256; 250 nd_cmd->num_records = 0; 251 nd_cmd->status = 0; 252 253 return 0; 254 } 255 256 static int nfit_test_ctl(struct nvdimm_bus_descriptor *nd_desc, 257 struct nvdimm *nvdimm, unsigned int cmd, void *buf, 258 unsigned int buf_len) 259 { 260 struct acpi_nfit_desc *acpi_desc = to_acpi_desc(nd_desc); 261 struct nfit_test *t = container_of(acpi_desc, typeof(*t), acpi_desc); 262 int i, rc = 0; 263 264 if (nvdimm) { 265 struct nfit_mem *nfit_mem = nvdimm_provider_data(nvdimm); 266 267 if (!nfit_mem || !test_bit(cmd, &nfit_mem->dsm_mask)) 268 return -ENOTTY; 269 270 /* lookup label space for the given dimm */ 271 for (i = 0; i < ARRAY_SIZE(handle); i++) 272 if (__to_nfit_memdev(nfit_mem)->device_handle == 273 handle[i]) 274 break; 275 if (i >= ARRAY_SIZE(handle)) 276 return -ENXIO; 277 278 switch (cmd) { 279 case ND_CMD_GET_CONFIG_SIZE: 280 rc = nfit_test_cmd_get_config_size(buf, buf_len); 281 break; 282 case ND_CMD_GET_CONFIG_DATA: 283 rc = nfit_test_cmd_get_config_data(buf, buf_len, 284 t->label[i]); 285 break; 286 case ND_CMD_SET_CONFIG_DATA: 287 rc = nfit_test_cmd_set_config_data(buf, buf_len, 288 t->label[i]); 289 break; 290 default: 291 return -ENOTTY; 292 } 293 } else { 294 if (!nd_desc || !test_bit(cmd, &nd_desc->dsm_mask)) 295 return -ENOTTY; 296 297 switch (cmd) { 298 case ND_CMD_ARS_CAP: 299 rc = nfit_test_cmd_ars_cap(buf, buf_len); 300 break; 301 case ND_CMD_ARS_START: 302 rc = nfit_test_cmd_ars_start(buf, buf_len); 303 break; 304 case ND_CMD_ARS_STATUS: 305 rc = nfit_test_cmd_ars_status(buf, buf_len); 306 break; 307 default: 308 return -ENOTTY; 309 } 310 } 311 312 return rc; 313 } 314 315 static DEFINE_SPINLOCK(nfit_test_lock); 316 static struct nfit_test *instances[NUM_NFITS]; 317 318 static void release_nfit_res(void *data) 319 { 320 struct nfit_test_resource *nfit_res = data; 321 struct resource *res = nfit_res->res; 322 323 spin_lock(&nfit_test_lock); 324 list_del(&nfit_res->list); 325 spin_unlock(&nfit_test_lock); 326 327 if (is_vmalloc_addr(nfit_res->buf)) 328 vfree(nfit_res->buf); 329 else 330 dma_free_coherent(nfit_res->dev, resource_size(res), 331 nfit_res->buf, res->start); 332 kfree(res); 333 kfree(nfit_res); 334 } 335 336 static void *__test_alloc(struct nfit_test *t, size_t size, dma_addr_t *dma, 337 void *buf) 338 { 339 struct device *dev = &t->pdev.dev; 340 struct resource *res = kzalloc(sizeof(*res) * 2, GFP_KERNEL); 341 struct nfit_test_resource *nfit_res = kzalloc(sizeof(*nfit_res), 342 GFP_KERNEL); 343 int rc; 344 345 if (!res || !buf || !nfit_res) 346 goto err; 347 rc = devm_add_action(dev, release_nfit_res, nfit_res); 348 if (rc) 349 goto err; 350 INIT_LIST_HEAD(&nfit_res->list); 351 memset(buf, 0, size); 352 nfit_res->dev = dev; 353 nfit_res->buf = buf; 354 nfit_res->res = res; 355 res->start = *dma; 356 res->end = *dma + size - 1; 357 res->name = "NFIT"; 358 spin_lock(&nfit_test_lock); 359 list_add(&nfit_res->list, &t->resources); 360 spin_unlock(&nfit_test_lock); 361 362 return nfit_res->buf; 363 err: 364 if (buf && !is_vmalloc_addr(buf)) 365 dma_free_coherent(dev, size, buf, *dma); 366 else if (buf) 367 vfree(buf); 368 kfree(res); 369 kfree(nfit_res); 370 return NULL; 371 } 372 373 static void *test_alloc(struct nfit_test *t, size_t size, dma_addr_t *dma) 374 { 375 void *buf = vmalloc(size); 376 377 *dma = (unsigned long) buf; 378 return __test_alloc(t, size, dma, buf); 379 } 380 381 static void *test_alloc_coherent(struct nfit_test *t, size_t size, 382 dma_addr_t *dma) 383 { 384 struct device *dev = &t->pdev.dev; 385 void *buf = dma_alloc_coherent(dev, size, dma, GFP_KERNEL); 386 387 return __test_alloc(t, size, dma, buf); 388 } 389 390 static struct nfit_test_resource *nfit_test_lookup(resource_size_t addr) 391 { 392 int i; 393 394 for (i = 0; i < ARRAY_SIZE(instances); i++) { 395 struct nfit_test_resource *n, *nfit_res = NULL; 396 struct nfit_test *t = instances[i]; 397 398 if (!t) 399 continue; 400 spin_lock(&nfit_test_lock); 401 list_for_each_entry(n, &t->resources, list) { 402 if (addr >= n->res->start && (addr < n->res->start 403 + resource_size(n->res))) { 404 nfit_res = n; 405 break; 406 } else if (addr >= (unsigned long) n->buf 407 && (addr < (unsigned long) n->buf 408 + resource_size(n->res))) { 409 nfit_res = n; 410 break; 411 } 412 } 413 spin_unlock(&nfit_test_lock); 414 if (nfit_res) 415 return nfit_res; 416 } 417 418 return NULL; 419 } 420 421 static int nfit_test0_alloc(struct nfit_test *t) 422 { 423 size_t nfit_size = sizeof(struct acpi_table_nfit) 424 + sizeof(struct acpi_nfit_system_address) * NUM_SPA 425 + sizeof(struct acpi_nfit_memory_map) * NUM_MEM 426 + sizeof(struct acpi_nfit_control_region) * NUM_DCR 427 + sizeof(struct acpi_nfit_data_region) * NUM_BDW 428 + sizeof(struct acpi_nfit_flush_address) * NUM_DCR; 429 int i; 430 431 t->nfit_buf = test_alloc(t, nfit_size, &t->nfit_dma); 432 if (!t->nfit_buf) 433 return -ENOMEM; 434 t->nfit_size = nfit_size; 435 436 t->spa_set[0] = test_alloc_coherent(t, SPA0_SIZE, &t->spa_set_dma[0]); 437 if (!t->spa_set[0]) 438 return -ENOMEM; 439 440 t->spa_set[1] = test_alloc_coherent(t, SPA1_SIZE, &t->spa_set_dma[1]); 441 if (!t->spa_set[1]) 442 return -ENOMEM; 443 444 t->spa_set[2] = test_alloc_coherent(t, SPA0_SIZE, &t->spa_set_dma[2]); 445 if (!t->spa_set[2]) 446 return -ENOMEM; 447 448 for (i = 0; i < NUM_DCR; i++) { 449 t->dimm[i] = test_alloc(t, DIMM_SIZE, &t->dimm_dma[i]); 450 if (!t->dimm[i]) 451 return -ENOMEM; 452 453 t->label[i] = test_alloc(t, LABEL_SIZE, &t->label_dma[i]); 454 if (!t->label[i]) 455 return -ENOMEM; 456 sprintf(t->label[i], "label%d", i); 457 458 t->flush[i] = test_alloc(t, 8, &t->flush_dma[i]); 459 if (!t->flush[i]) 460 return -ENOMEM; 461 } 462 463 for (i = 0; i < NUM_DCR; i++) { 464 t->dcr[i] = test_alloc(t, LABEL_SIZE, &t->dcr_dma[i]); 465 if (!t->dcr[i]) 466 return -ENOMEM; 467 } 468 469 return 0; 470 } 471 472 static int nfit_test1_alloc(struct nfit_test *t) 473 { 474 size_t nfit_size = sizeof(struct acpi_table_nfit) 475 + sizeof(struct acpi_nfit_system_address) 476 + sizeof(struct acpi_nfit_memory_map) 477 + sizeof(struct acpi_nfit_control_region); 478 479 t->nfit_buf = test_alloc(t, nfit_size, &t->nfit_dma); 480 if (!t->nfit_buf) 481 return -ENOMEM; 482 t->nfit_size = nfit_size; 483 484 t->spa_set[0] = test_alloc_coherent(t, SPA2_SIZE, &t->spa_set_dma[0]); 485 if (!t->spa_set[0]) 486 return -ENOMEM; 487 488 return 0; 489 } 490 491 static void nfit_test_init_header(struct acpi_table_nfit *nfit, size_t size) 492 { 493 memcpy(nfit->header.signature, ACPI_SIG_NFIT, 4); 494 nfit->header.length = size; 495 nfit->header.revision = 1; 496 memcpy(nfit->header.oem_id, "LIBND", 6); 497 memcpy(nfit->header.oem_table_id, "TEST", 5); 498 nfit->header.oem_revision = 1; 499 memcpy(nfit->header.asl_compiler_id, "TST", 4); 500 nfit->header.asl_compiler_revision = 1; 501 } 502 503 static void nfit_test0_setup(struct nfit_test *t) 504 { 505 struct nvdimm_bus_descriptor *nd_desc; 506 struct acpi_nfit_desc *acpi_desc; 507 struct acpi_nfit_memory_map *memdev; 508 void *nfit_buf = t->nfit_buf; 509 size_t size = t->nfit_size; 510 struct acpi_nfit_system_address *spa; 511 struct acpi_nfit_control_region *dcr; 512 struct acpi_nfit_data_region *bdw; 513 struct acpi_nfit_flush_address *flush; 514 unsigned int offset; 515 516 nfit_test_init_header(nfit_buf, size); 517 518 /* 519 * spa0 (interleave first half of dimm0 and dimm1, note storage 520 * does not actually alias the related block-data-window 521 * regions) 522 */ 523 spa = nfit_buf + sizeof(struct acpi_table_nfit); 524 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; 525 spa->header.length = sizeof(*spa); 526 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_PM), 16); 527 spa->range_index = 0+1; 528 spa->address = t->spa_set_dma[0]; 529 spa->length = SPA0_SIZE; 530 531 /* 532 * spa1 (interleave last half of the 4 DIMMS, note storage 533 * does not actually alias the related block-data-window 534 * regions) 535 */ 536 spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa); 537 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; 538 spa->header.length = sizeof(*spa); 539 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_PM), 16); 540 spa->range_index = 1+1; 541 spa->address = t->spa_set_dma[1]; 542 spa->length = SPA1_SIZE; 543 544 /* spa2 (dcr0) dimm0 */ 545 spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 2; 546 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; 547 spa->header.length = sizeof(*spa); 548 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16); 549 spa->range_index = 2+1; 550 spa->address = t->dcr_dma[0]; 551 spa->length = DCR_SIZE; 552 553 /* spa3 (dcr1) dimm1 */ 554 spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 3; 555 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; 556 spa->header.length = sizeof(*spa); 557 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16); 558 spa->range_index = 3+1; 559 spa->address = t->dcr_dma[1]; 560 spa->length = DCR_SIZE; 561 562 /* spa4 (dcr2) dimm2 */ 563 spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 4; 564 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; 565 spa->header.length = sizeof(*spa); 566 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16); 567 spa->range_index = 4+1; 568 spa->address = t->dcr_dma[2]; 569 spa->length = DCR_SIZE; 570 571 /* spa5 (dcr3) dimm3 */ 572 spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 5; 573 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; 574 spa->header.length = sizeof(*spa); 575 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16); 576 spa->range_index = 5+1; 577 spa->address = t->dcr_dma[3]; 578 spa->length = DCR_SIZE; 579 580 /* spa6 (bdw for dcr0) dimm0 */ 581 spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 6; 582 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; 583 spa->header.length = sizeof(*spa); 584 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16); 585 spa->range_index = 6+1; 586 spa->address = t->dimm_dma[0]; 587 spa->length = DIMM_SIZE; 588 589 /* spa7 (bdw for dcr1) dimm1 */ 590 spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 7; 591 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; 592 spa->header.length = sizeof(*spa); 593 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16); 594 spa->range_index = 7+1; 595 spa->address = t->dimm_dma[1]; 596 spa->length = DIMM_SIZE; 597 598 /* spa8 (bdw for dcr2) dimm2 */ 599 spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 8; 600 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; 601 spa->header.length = sizeof(*spa); 602 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16); 603 spa->range_index = 8+1; 604 spa->address = t->dimm_dma[2]; 605 spa->length = DIMM_SIZE; 606 607 /* spa9 (bdw for dcr3) dimm3 */ 608 spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 9; 609 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; 610 spa->header.length = sizeof(*spa); 611 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16); 612 spa->range_index = 9+1; 613 spa->address = t->dimm_dma[3]; 614 spa->length = DIMM_SIZE; 615 616 offset = sizeof(struct acpi_table_nfit) + sizeof(*spa) * 10; 617 /* mem-region0 (spa0, dimm0) */ 618 memdev = nfit_buf + offset; 619 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; 620 memdev->header.length = sizeof(*memdev); 621 memdev->device_handle = handle[0]; 622 memdev->physical_id = 0; 623 memdev->region_id = 0; 624 memdev->range_index = 0+1; 625 memdev->region_index = 0+1; 626 memdev->region_size = SPA0_SIZE/2; 627 memdev->region_offset = t->spa_set_dma[0]; 628 memdev->address = 0; 629 memdev->interleave_index = 0; 630 memdev->interleave_ways = 2; 631 632 /* mem-region1 (spa0, dimm1) */ 633 memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map); 634 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; 635 memdev->header.length = sizeof(*memdev); 636 memdev->device_handle = handle[1]; 637 memdev->physical_id = 1; 638 memdev->region_id = 0; 639 memdev->range_index = 0+1; 640 memdev->region_index = 1+1; 641 memdev->region_size = SPA0_SIZE/2; 642 memdev->region_offset = t->spa_set_dma[0] + SPA0_SIZE/2; 643 memdev->address = 0; 644 memdev->interleave_index = 0; 645 memdev->interleave_ways = 2; 646 647 /* mem-region2 (spa1, dimm0) */ 648 memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 2; 649 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; 650 memdev->header.length = sizeof(*memdev); 651 memdev->device_handle = handle[0]; 652 memdev->physical_id = 0; 653 memdev->region_id = 1; 654 memdev->range_index = 1+1; 655 memdev->region_index = 0+1; 656 memdev->region_size = SPA1_SIZE/4; 657 memdev->region_offset = t->spa_set_dma[1]; 658 memdev->address = SPA0_SIZE/2; 659 memdev->interleave_index = 0; 660 memdev->interleave_ways = 4; 661 662 /* mem-region3 (spa1, dimm1) */ 663 memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 3; 664 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; 665 memdev->header.length = sizeof(*memdev); 666 memdev->device_handle = handle[1]; 667 memdev->physical_id = 1; 668 memdev->region_id = 1; 669 memdev->range_index = 1+1; 670 memdev->region_index = 1+1; 671 memdev->region_size = SPA1_SIZE/4; 672 memdev->region_offset = t->spa_set_dma[1] + SPA1_SIZE/4; 673 memdev->address = SPA0_SIZE/2; 674 memdev->interleave_index = 0; 675 memdev->interleave_ways = 4; 676 677 /* mem-region4 (spa1, dimm2) */ 678 memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 4; 679 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; 680 memdev->header.length = sizeof(*memdev); 681 memdev->device_handle = handle[2]; 682 memdev->physical_id = 2; 683 memdev->region_id = 0; 684 memdev->range_index = 1+1; 685 memdev->region_index = 2+1; 686 memdev->region_size = SPA1_SIZE/4; 687 memdev->region_offset = t->spa_set_dma[1] + 2*SPA1_SIZE/4; 688 memdev->address = SPA0_SIZE/2; 689 memdev->interleave_index = 0; 690 memdev->interleave_ways = 4; 691 692 /* mem-region5 (spa1, dimm3) */ 693 memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 5; 694 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; 695 memdev->header.length = sizeof(*memdev); 696 memdev->device_handle = handle[3]; 697 memdev->physical_id = 3; 698 memdev->region_id = 0; 699 memdev->range_index = 1+1; 700 memdev->region_index = 3+1; 701 memdev->region_size = SPA1_SIZE/4; 702 memdev->region_offset = t->spa_set_dma[1] + 3*SPA1_SIZE/4; 703 memdev->address = SPA0_SIZE/2; 704 memdev->interleave_index = 0; 705 memdev->interleave_ways = 4; 706 707 /* mem-region6 (spa/dcr0, dimm0) */ 708 memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 6; 709 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; 710 memdev->header.length = sizeof(*memdev); 711 memdev->device_handle = handle[0]; 712 memdev->physical_id = 0; 713 memdev->region_id = 0; 714 memdev->range_index = 2+1; 715 memdev->region_index = 0+1; 716 memdev->region_size = 0; 717 memdev->region_offset = 0; 718 memdev->address = 0; 719 memdev->interleave_index = 0; 720 memdev->interleave_ways = 1; 721 722 /* mem-region7 (spa/dcr1, dimm1) */ 723 memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 7; 724 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; 725 memdev->header.length = sizeof(*memdev); 726 memdev->device_handle = handle[1]; 727 memdev->physical_id = 1; 728 memdev->region_id = 0; 729 memdev->range_index = 3+1; 730 memdev->region_index = 1+1; 731 memdev->region_size = 0; 732 memdev->region_offset = 0; 733 memdev->address = 0; 734 memdev->interleave_index = 0; 735 memdev->interleave_ways = 1; 736 737 /* mem-region8 (spa/dcr2, dimm2) */ 738 memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 8; 739 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; 740 memdev->header.length = sizeof(*memdev); 741 memdev->device_handle = handle[2]; 742 memdev->physical_id = 2; 743 memdev->region_id = 0; 744 memdev->range_index = 4+1; 745 memdev->region_index = 2+1; 746 memdev->region_size = 0; 747 memdev->region_offset = 0; 748 memdev->address = 0; 749 memdev->interleave_index = 0; 750 memdev->interleave_ways = 1; 751 752 /* mem-region9 (spa/dcr3, dimm3) */ 753 memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 9; 754 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; 755 memdev->header.length = sizeof(*memdev); 756 memdev->device_handle = handle[3]; 757 memdev->physical_id = 3; 758 memdev->region_id = 0; 759 memdev->range_index = 5+1; 760 memdev->region_index = 3+1; 761 memdev->region_size = 0; 762 memdev->region_offset = 0; 763 memdev->address = 0; 764 memdev->interleave_index = 0; 765 memdev->interleave_ways = 1; 766 767 /* mem-region10 (spa/bdw0, dimm0) */ 768 memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 10; 769 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; 770 memdev->header.length = sizeof(*memdev); 771 memdev->device_handle = handle[0]; 772 memdev->physical_id = 0; 773 memdev->region_id = 0; 774 memdev->range_index = 6+1; 775 memdev->region_index = 0+1; 776 memdev->region_size = 0; 777 memdev->region_offset = 0; 778 memdev->address = 0; 779 memdev->interleave_index = 0; 780 memdev->interleave_ways = 1; 781 782 /* mem-region11 (spa/bdw1, dimm1) */ 783 memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 11; 784 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; 785 memdev->header.length = sizeof(*memdev); 786 memdev->device_handle = handle[1]; 787 memdev->physical_id = 1; 788 memdev->region_id = 0; 789 memdev->range_index = 7+1; 790 memdev->region_index = 1+1; 791 memdev->region_size = 0; 792 memdev->region_offset = 0; 793 memdev->address = 0; 794 memdev->interleave_index = 0; 795 memdev->interleave_ways = 1; 796 797 /* mem-region12 (spa/bdw2, dimm2) */ 798 memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 12; 799 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; 800 memdev->header.length = sizeof(*memdev); 801 memdev->device_handle = handle[2]; 802 memdev->physical_id = 2; 803 memdev->region_id = 0; 804 memdev->range_index = 8+1; 805 memdev->region_index = 2+1; 806 memdev->region_size = 0; 807 memdev->region_offset = 0; 808 memdev->address = 0; 809 memdev->interleave_index = 0; 810 memdev->interleave_ways = 1; 811 812 /* mem-region13 (spa/dcr3, dimm3) */ 813 memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 13; 814 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; 815 memdev->header.length = sizeof(*memdev); 816 memdev->device_handle = handle[3]; 817 memdev->physical_id = 3; 818 memdev->region_id = 0; 819 memdev->range_index = 9+1; 820 memdev->region_index = 3+1; 821 memdev->region_size = 0; 822 memdev->region_offset = 0; 823 memdev->address = 0; 824 memdev->interleave_index = 0; 825 memdev->interleave_ways = 1; 826 827 offset = offset + sizeof(struct acpi_nfit_memory_map) * 14; 828 /* dcr-descriptor0 */ 829 dcr = nfit_buf + offset; 830 dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION; 831 dcr->header.length = sizeof(struct acpi_nfit_control_region); 832 dcr->region_index = 0+1; 833 dcr->vendor_id = 0xabcd; 834 dcr->device_id = 0; 835 dcr->revision_id = 1; 836 dcr->serial_number = ~handle[0]; 837 dcr->windows = 1; 838 dcr->window_size = DCR_SIZE; 839 dcr->command_offset = 0; 840 dcr->command_size = 8; 841 dcr->status_offset = 8; 842 dcr->status_size = 4; 843 844 /* dcr-descriptor1 */ 845 dcr = nfit_buf + offset + sizeof(struct acpi_nfit_control_region); 846 dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION; 847 dcr->header.length = sizeof(struct acpi_nfit_control_region); 848 dcr->region_index = 1+1; 849 dcr->vendor_id = 0xabcd; 850 dcr->device_id = 0; 851 dcr->revision_id = 1; 852 dcr->serial_number = ~handle[1]; 853 dcr->windows = 1; 854 dcr->window_size = DCR_SIZE; 855 dcr->command_offset = 0; 856 dcr->command_size = 8; 857 dcr->status_offset = 8; 858 dcr->status_size = 4; 859 860 /* dcr-descriptor2 */ 861 dcr = nfit_buf + offset + sizeof(struct acpi_nfit_control_region) * 2; 862 dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION; 863 dcr->header.length = sizeof(struct acpi_nfit_control_region); 864 dcr->region_index = 2+1; 865 dcr->vendor_id = 0xabcd; 866 dcr->device_id = 0; 867 dcr->revision_id = 1; 868 dcr->serial_number = ~handle[2]; 869 dcr->windows = 1; 870 dcr->window_size = DCR_SIZE; 871 dcr->command_offset = 0; 872 dcr->command_size = 8; 873 dcr->status_offset = 8; 874 dcr->status_size = 4; 875 876 /* dcr-descriptor3 */ 877 dcr = nfit_buf + offset + sizeof(struct acpi_nfit_control_region) * 3; 878 dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION; 879 dcr->header.length = sizeof(struct acpi_nfit_control_region); 880 dcr->region_index = 3+1; 881 dcr->vendor_id = 0xabcd; 882 dcr->device_id = 0; 883 dcr->revision_id = 1; 884 dcr->serial_number = ~handle[3]; 885 dcr->windows = 1; 886 dcr->window_size = DCR_SIZE; 887 dcr->command_offset = 0; 888 dcr->command_size = 8; 889 dcr->status_offset = 8; 890 dcr->status_size = 4; 891 892 offset = offset + sizeof(struct acpi_nfit_control_region) * 4; 893 /* bdw0 (spa/dcr0, dimm0) */ 894 bdw = nfit_buf + offset; 895 bdw->header.type = ACPI_NFIT_TYPE_DATA_REGION; 896 bdw->header.length = sizeof(struct acpi_nfit_data_region); 897 bdw->region_index = 0+1; 898 bdw->windows = 1; 899 bdw->offset = 0; 900 bdw->size = BDW_SIZE; 901 bdw->capacity = DIMM_SIZE; 902 bdw->start_address = 0; 903 904 /* bdw1 (spa/dcr1, dimm1) */ 905 bdw = nfit_buf + offset + sizeof(struct acpi_nfit_data_region); 906 bdw->header.type = ACPI_NFIT_TYPE_DATA_REGION; 907 bdw->header.length = sizeof(struct acpi_nfit_data_region); 908 bdw->region_index = 1+1; 909 bdw->windows = 1; 910 bdw->offset = 0; 911 bdw->size = BDW_SIZE; 912 bdw->capacity = DIMM_SIZE; 913 bdw->start_address = 0; 914 915 /* bdw2 (spa/dcr2, dimm2) */ 916 bdw = nfit_buf + offset + sizeof(struct acpi_nfit_data_region) * 2; 917 bdw->header.type = ACPI_NFIT_TYPE_DATA_REGION; 918 bdw->header.length = sizeof(struct acpi_nfit_data_region); 919 bdw->region_index = 2+1; 920 bdw->windows = 1; 921 bdw->offset = 0; 922 bdw->size = BDW_SIZE; 923 bdw->capacity = DIMM_SIZE; 924 bdw->start_address = 0; 925 926 /* bdw3 (spa/dcr3, dimm3) */ 927 bdw = nfit_buf + offset + sizeof(struct acpi_nfit_data_region) * 3; 928 bdw->header.type = ACPI_NFIT_TYPE_DATA_REGION; 929 bdw->header.length = sizeof(struct acpi_nfit_data_region); 930 bdw->region_index = 3+1; 931 bdw->windows = 1; 932 bdw->offset = 0; 933 bdw->size = BDW_SIZE; 934 bdw->capacity = DIMM_SIZE; 935 bdw->start_address = 0; 936 937 offset = offset + sizeof(struct acpi_nfit_data_region) * 4; 938 /* flush0 (dimm0) */ 939 flush = nfit_buf + offset; 940 flush->header.type = ACPI_NFIT_TYPE_FLUSH_ADDRESS; 941 flush->header.length = sizeof(struct acpi_nfit_flush_address); 942 flush->device_handle = handle[0]; 943 flush->hint_count = 1; 944 flush->hint_address[0] = t->flush_dma[0]; 945 946 /* flush1 (dimm1) */ 947 flush = nfit_buf + offset + sizeof(struct acpi_nfit_flush_address) * 1; 948 flush->header.type = ACPI_NFIT_TYPE_FLUSH_ADDRESS; 949 flush->header.length = sizeof(struct acpi_nfit_flush_address); 950 flush->device_handle = handle[1]; 951 flush->hint_count = 1; 952 flush->hint_address[0] = t->flush_dma[1]; 953 954 /* flush2 (dimm2) */ 955 flush = nfit_buf + offset + sizeof(struct acpi_nfit_flush_address) * 2; 956 flush->header.type = ACPI_NFIT_TYPE_FLUSH_ADDRESS; 957 flush->header.length = sizeof(struct acpi_nfit_flush_address); 958 flush->device_handle = handle[2]; 959 flush->hint_count = 1; 960 flush->hint_address[0] = t->flush_dma[2]; 961 962 /* flush3 (dimm3) */ 963 flush = nfit_buf + offset + sizeof(struct acpi_nfit_flush_address) * 3; 964 flush->header.type = ACPI_NFIT_TYPE_FLUSH_ADDRESS; 965 flush->header.length = sizeof(struct acpi_nfit_flush_address); 966 flush->device_handle = handle[3]; 967 flush->hint_count = 1; 968 flush->hint_address[0] = t->flush_dma[3]; 969 970 if (t->setup_hotplug) { 971 offset = offset + sizeof(struct acpi_nfit_flush_address) * 4; 972 /* dcr-descriptor4 */ 973 dcr = nfit_buf + offset; 974 dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION; 975 dcr->header.length = sizeof(struct acpi_nfit_control_region); 976 dcr->region_index = 4+1; 977 dcr->vendor_id = 0xabcd; 978 dcr->device_id = 0; 979 dcr->revision_id = 1; 980 dcr->serial_number = ~handle[4]; 981 dcr->windows = 1; 982 dcr->window_size = DCR_SIZE; 983 dcr->command_offset = 0; 984 dcr->command_size = 8; 985 dcr->status_offset = 8; 986 dcr->status_size = 4; 987 988 offset = offset + sizeof(struct acpi_nfit_control_region); 989 /* bdw4 (spa/dcr4, dimm4) */ 990 bdw = nfit_buf + offset; 991 bdw->header.type = ACPI_NFIT_TYPE_DATA_REGION; 992 bdw->header.length = sizeof(struct acpi_nfit_data_region); 993 bdw->region_index = 4+1; 994 bdw->windows = 1; 995 bdw->offset = 0; 996 bdw->size = BDW_SIZE; 997 bdw->capacity = DIMM_SIZE; 998 bdw->start_address = 0; 999 1000 offset = offset + sizeof(struct acpi_nfit_data_region); 1001 /* spa10 (dcr4) dimm4 */ 1002 spa = nfit_buf + offset; 1003 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; 1004 spa->header.length = sizeof(*spa); 1005 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16); 1006 spa->range_index = 10+1; 1007 spa->address = t->dcr_dma[4]; 1008 spa->length = DCR_SIZE; 1009 1010 /* 1011 * spa11 (single-dimm interleave for hotplug, note storage 1012 * does not actually alias the related block-data-window 1013 * regions) 1014 */ 1015 spa = nfit_buf + offset + sizeof(*spa); 1016 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; 1017 spa->header.length = sizeof(*spa); 1018 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_PM), 16); 1019 spa->range_index = 11+1; 1020 spa->address = t->spa_set_dma[2]; 1021 spa->length = SPA0_SIZE; 1022 1023 /* spa12 (bdw for dcr4) dimm4 */ 1024 spa = nfit_buf + offset + sizeof(*spa) * 2; 1025 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; 1026 spa->header.length = sizeof(*spa); 1027 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16); 1028 spa->range_index = 12+1; 1029 spa->address = t->dimm_dma[4]; 1030 spa->length = DIMM_SIZE; 1031 1032 offset = offset + sizeof(*spa) * 3; 1033 /* mem-region14 (spa/dcr4, dimm4) */ 1034 memdev = nfit_buf + offset; 1035 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; 1036 memdev->header.length = sizeof(*memdev); 1037 memdev->device_handle = handle[4]; 1038 memdev->physical_id = 4; 1039 memdev->region_id = 0; 1040 memdev->range_index = 10+1; 1041 memdev->region_index = 4+1; 1042 memdev->region_size = 0; 1043 memdev->region_offset = 0; 1044 memdev->address = 0; 1045 memdev->interleave_index = 0; 1046 memdev->interleave_ways = 1; 1047 1048 /* mem-region15 (spa0, dimm4) */ 1049 memdev = nfit_buf + offset + 1050 sizeof(struct acpi_nfit_memory_map); 1051 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; 1052 memdev->header.length = sizeof(*memdev); 1053 memdev->device_handle = handle[4]; 1054 memdev->physical_id = 4; 1055 memdev->region_id = 0; 1056 memdev->range_index = 11+1; 1057 memdev->region_index = 4+1; 1058 memdev->region_size = SPA0_SIZE; 1059 memdev->region_offset = t->spa_set_dma[2]; 1060 memdev->address = 0; 1061 memdev->interleave_index = 0; 1062 memdev->interleave_ways = 1; 1063 1064 /* mem-region16 (spa/dcr4, dimm4) */ 1065 memdev = nfit_buf + offset + 1066 sizeof(struct acpi_nfit_memory_map) * 2; 1067 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; 1068 memdev->header.length = sizeof(*memdev); 1069 memdev->device_handle = handle[4]; 1070 memdev->physical_id = 4; 1071 memdev->region_id = 0; 1072 memdev->range_index = 12+1; 1073 memdev->region_index = 4+1; 1074 memdev->region_size = 0; 1075 memdev->region_offset = 0; 1076 memdev->address = 0; 1077 memdev->interleave_index = 0; 1078 memdev->interleave_ways = 1; 1079 1080 offset = offset + sizeof(struct acpi_nfit_memory_map) * 3; 1081 /* flush3 (dimm4) */ 1082 flush = nfit_buf + offset; 1083 flush->header.type = ACPI_NFIT_TYPE_FLUSH_ADDRESS; 1084 flush->header.length = sizeof(struct acpi_nfit_flush_address); 1085 flush->device_handle = handle[4]; 1086 flush->hint_count = 1; 1087 flush->hint_address[0] = t->flush_dma[4]; 1088 } 1089 1090 acpi_desc = &t->acpi_desc; 1091 set_bit(ND_CMD_GET_CONFIG_SIZE, &acpi_desc->dimm_dsm_force_en); 1092 set_bit(ND_CMD_GET_CONFIG_DATA, &acpi_desc->dimm_dsm_force_en); 1093 set_bit(ND_CMD_SET_CONFIG_DATA, &acpi_desc->dimm_dsm_force_en); 1094 set_bit(ND_CMD_ARS_CAP, &acpi_desc->bus_dsm_force_en); 1095 set_bit(ND_CMD_ARS_START, &acpi_desc->bus_dsm_force_en); 1096 set_bit(ND_CMD_ARS_STATUS, &acpi_desc->bus_dsm_force_en); 1097 nd_desc = &acpi_desc->nd_desc; 1098 nd_desc->ndctl = nfit_test_ctl; 1099 } 1100 1101 static void nfit_test1_setup(struct nfit_test *t) 1102 { 1103 size_t size = t->nfit_size, offset; 1104 void *nfit_buf = t->nfit_buf; 1105 struct acpi_nfit_memory_map *memdev; 1106 struct acpi_nfit_control_region *dcr; 1107 struct acpi_nfit_system_address *spa; 1108 1109 nfit_test_init_header(nfit_buf, size); 1110 1111 offset = sizeof(struct acpi_table_nfit); 1112 /* spa0 (flat range with no bdw aliasing) */ 1113 spa = nfit_buf + offset; 1114 spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; 1115 spa->header.length = sizeof(*spa); 1116 memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_PM), 16); 1117 spa->range_index = 0+1; 1118 spa->address = t->spa_set_dma[0]; 1119 spa->length = SPA2_SIZE; 1120 1121 offset += sizeof(*spa); 1122 /* mem-region0 (spa0, dimm0) */ 1123 memdev = nfit_buf + offset; 1124 memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; 1125 memdev->header.length = sizeof(*memdev); 1126 memdev->device_handle = 0; 1127 memdev->physical_id = 0; 1128 memdev->region_id = 0; 1129 memdev->range_index = 0+1; 1130 memdev->region_index = 0+1; 1131 memdev->region_size = SPA2_SIZE; 1132 memdev->region_offset = 0; 1133 memdev->address = 0; 1134 memdev->interleave_index = 0; 1135 memdev->interleave_ways = 1; 1136 memdev->flags = ACPI_NFIT_MEM_SAVE_FAILED | ACPI_NFIT_MEM_RESTORE_FAILED 1137 | ACPI_NFIT_MEM_FLUSH_FAILED | ACPI_NFIT_MEM_HEALTH_OBSERVED 1138 | ACPI_NFIT_MEM_ARMED; 1139 1140 offset += sizeof(*memdev); 1141 /* dcr-descriptor0 */ 1142 dcr = nfit_buf + offset; 1143 dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION; 1144 dcr->header.length = sizeof(struct acpi_nfit_control_region); 1145 dcr->region_index = 0+1; 1146 dcr->vendor_id = 0xabcd; 1147 dcr->device_id = 0; 1148 dcr->revision_id = 1; 1149 dcr->serial_number = ~0; 1150 dcr->code = 0x201; 1151 dcr->windows = 0; 1152 dcr->window_size = 0; 1153 dcr->command_offset = 0; 1154 dcr->command_size = 0; 1155 dcr->status_offset = 0; 1156 dcr->status_size = 0; 1157 } 1158 1159 static int nfit_test_blk_do_io(struct nd_blk_region *ndbr, resource_size_t dpa, 1160 void *iobuf, u64 len, int rw) 1161 { 1162 struct nfit_blk *nfit_blk = ndbr->blk_provider_data; 1163 struct nfit_blk_mmio *mmio = &nfit_blk->mmio[BDW]; 1164 struct nd_region *nd_region = &ndbr->nd_region; 1165 unsigned int lane; 1166 1167 lane = nd_region_acquire_lane(nd_region); 1168 if (rw) 1169 memcpy(mmio->addr.base + dpa, iobuf, len); 1170 else { 1171 memcpy(iobuf, mmio->addr.base + dpa, len); 1172 1173 /* give us some some coverage of the mmio_flush_range() API */ 1174 mmio_flush_range(mmio->addr.base + dpa, len); 1175 } 1176 nd_region_release_lane(nd_region, lane); 1177 1178 return 0; 1179 } 1180 1181 static int nfit_test_probe(struct platform_device *pdev) 1182 { 1183 struct nvdimm_bus_descriptor *nd_desc; 1184 struct acpi_nfit_desc *acpi_desc; 1185 struct device *dev = &pdev->dev; 1186 struct nfit_test *nfit_test; 1187 int rc; 1188 1189 nfit_test = to_nfit_test(&pdev->dev); 1190 1191 /* common alloc */ 1192 if (nfit_test->num_dcr) { 1193 int num = nfit_test->num_dcr; 1194 1195 nfit_test->dimm = devm_kcalloc(dev, num, sizeof(void *), 1196 GFP_KERNEL); 1197 nfit_test->dimm_dma = devm_kcalloc(dev, num, sizeof(dma_addr_t), 1198 GFP_KERNEL); 1199 nfit_test->flush = devm_kcalloc(dev, num, sizeof(void *), 1200 GFP_KERNEL); 1201 nfit_test->flush_dma = devm_kcalloc(dev, num, sizeof(dma_addr_t), 1202 GFP_KERNEL); 1203 nfit_test->label = devm_kcalloc(dev, num, sizeof(void *), 1204 GFP_KERNEL); 1205 nfit_test->label_dma = devm_kcalloc(dev, num, 1206 sizeof(dma_addr_t), GFP_KERNEL); 1207 nfit_test->dcr = devm_kcalloc(dev, num, 1208 sizeof(struct nfit_test_dcr *), GFP_KERNEL); 1209 nfit_test->dcr_dma = devm_kcalloc(dev, num, 1210 sizeof(dma_addr_t), GFP_KERNEL); 1211 if (nfit_test->dimm && nfit_test->dimm_dma && nfit_test->label 1212 && nfit_test->label_dma && nfit_test->dcr 1213 && nfit_test->dcr_dma && nfit_test->flush 1214 && nfit_test->flush_dma) 1215 /* pass */; 1216 else 1217 return -ENOMEM; 1218 } 1219 1220 if (nfit_test->num_pm) { 1221 int num = nfit_test->num_pm; 1222 1223 nfit_test->spa_set = devm_kcalloc(dev, num, sizeof(void *), 1224 GFP_KERNEL); 1225 nfit_test->spa_set_dma = devm_kcalloc(dev, num, 1226 sizeof(dma_addr_t), GFP_KERNEL); 1227 if (nfit_test->spa_set && nfit_test->spa_set_dma) 1228 /* pass */; 1229 else 1230 return -ENOMEM; 1231 } 1232 1233 /* per-nfit specific alloc */ 1234 if (nfit_test->alloc(nfit_test)) 1235 return -ENOMEM; 1236 1237 nfit_test->setup(nfit_test); 1238 acpi_desc = &nfit_test->acpi_desc; 1239 acpi_desc->dev = &pdev->dev; 1240 acpi_desc->nfit = nfit_test->nfit_buf; 1241 acpi_desc->blk_do_io = nfit_test_blk_do_io; 1242 nd_desc = &acpi_desc->nd_desc; 1243 nd_desc->attr_groups = acpi_nfit_attribute_groups; 1244 acpi_desc->nvdimm_bus = nvdimm_bus_register(&pdev->dev, nd_desc); 1245 if (!acpi_desc->nvdimm_bus) 1246 return -ENXIO; 1247 1248 INIT_LIST_HEAD(&acpi_desc->spa_maps); 1249 INIT_LIST_HEAD(&acpi_desc->spas); 1250 INIT_LIST_HEAD(&acpi_desc->dcrs); 1251 INIT_LIST_HEAD(&acpi_desc->bdws); 1252 INIT_LIST_HEAD(&acpi_desc->idts); 1253 INIT_LIST_HEAD(&acpi_desc->flushes); 1254 INIT_LIST_HEAD(&acpi_desc->memdevs); 1255 INIT_LIST_HEAD(&acpi_desc->dimms); 1256 mutex_init(&acpi_desc->spa_map_mutex); 1257 mutex_init(&acpi_desc->init_mutex); 1258 1259 rc = acpi_nfit_init(acpi_desc, nfit_test->nfit_size); 1260 if (rc) { 1261 nvdimm_bus_unregister(acpi_desc->nvdimm_bus); 1262 return rc; 1263 } 1264 1265 if (nfit_test->setup != nfit_test0_setup) 1266 return 0; 1267 1268 nfit_test->setup_hotplug = 1; 1269 nfit_test->setup(nfit_test); 1270 1271 rc = acpi_nfit_init(acpi_desc, nfit_test->nfit_size); 1272 if (rc) { 1273 nvdimm_bus_unregister(acpi_desc->nvdimm_bus); 1274 return rc; 1275 } 1276 1277 return 0; 1278 } 1279 1280 static int nfit_test_remove(struct platform_device *pdev) 1281 { 1282 struct nfit_test *nfit_test = to_nfit_test(&pdev->dev); 1283 struct acpi_nfit_desc *acpi_desc = &nfit_test->acpi_desc; 1284 1285 nvdimm_bus_unregister(acpi_desc->nvdimm_bus); 1286 1287 return 0; 1288 } 1289 1290 static void nfit_test_release(struct device *dev) 1291 { 1292 struct nfit_test *nfit_test = to_nfit_test(dev); 1293 1294 kfree(nfit_test); 1295 } 1296 1297 static const struct platform_device_id nfit_test_id[] = { 1298 { KBUILD_MODNAME }, 1299 { }, 1300 }; 1301 1302 static struct platform_driver nfit_test_driver = { 1303 .probe = nfit_test_probe, 1304 .remove = nfit_test_remove, 1305 .driver = { 1306 .name = KBUILD_MODNAME, 1307 }, 1308 .id_table = nfit_test_id, 1309 }; 1310 1311 #ifdef CONFIG_CMA_SIZE_MBYTES 1312 #define CMA_SIZE_MBYTES CONFIG_CMA_SIZE_MBYTES 1313 #else 1314 #define CMA_SIZE_MBYTES 0 1315 #endif 1316 1317 static __init int nfit_test_init(void) 1318 { 1319 int rc, i; 1320 1321 nfit_test_setup(nfit_test_lookup); 1322 1323 for (i = 0; i < NUM_NFITS; i++) { 1324 struct nfit_test *nfit_test; 1325 struct platform_device *pdev; 1326 static int once; 1327 1328 nfit_test = kzalloc(sizeof(*nfit_test), GFP_KERNEL); 1329 if (!nfit_test) { 1330 rc = -ENOMEM; 1331 goto err_register; 1332 } 1333 INIT_LIST_HEAD(&nfit_test->resources); 1334 switch (i) { 1335 case 0: 1336 nfit_test->num_pm = NUM_PM; 1337 nfit_test->num_dcr = NUM_DCR; 1338 nfit_test->alloc = nfit_test0_alloc; 1339 nfit_test->setup = nfit_test0_setup; 1340 break; 1341 case 1: 1342 nfit_test->num_pm = 1; 1343 nfit_test->alloc = nfit_test1_alloc; 1344 nfit_test->setup = nfit_test1_setup; 1345 break; 1346 default: 1347 rc = -EINVAL; 1348 goto err_register; 1349 } 1350 pdev = &nfit_test->pdev; 1351 pdev->name = KBUILD_MODNAME; 1352 pdev->id = i; 1353 pdev->dev.release = nfit_test_release; 1354 rc = platform_device_register(pdev); 1355 if (rc) { 1356 put_device(&pdev->dev); 1357 goto err_register; 1358 } 1359 1360 rc = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); 1361 if (rc) 1362 goto err_register; 1363 1364 instances[i] = nfit_test; 1365 1366 if (!once++) { 1367 dma_addr_t dma; 1368 void *buf; 1369 1370 buf = dma_alloc_coherent(&pdev->dev, SZ_128M, &dma, 1371 GFP_KERNEL); 1372 if (!buf) { 1373 rc = -ENOMEM; 1374 dev_warn(&pdev->dev, "need 128M of free cma\n"); 1375 goto err_register; 1376 } 1377 dma_free_coherent(&pdev->dev, SZ_128M, buf, dma); 1378 } 1379 } 1380 1381 rc = platform_driver_register(&nfit_test_driver); 1382 if (rc) 1383 goto err_register; 1384 return 0; 1385 1386 err_register: 1387 for (i = 0; i < NUM_NFITS; i++) 1388 if (instances[i]) 1389 platform_device_unregister(&instances[i]->pdev); 1390 nfit_test_teardown(); 1391 return rc; 1392 } 1393 1394 static __exit void nfit_test_exit(void) 1395 { 1396 int i; 1397 1398 platform_driver_unregister(&nfit_test_driver); 1399 for (i = 0; i < NUM_NFITS; i++) 1400 platform_device_unregister(&instances[i]->pdev); 1401 nfit_test_teardown(); 1402 } 1403 1404 module_init(nfit_test_init); 1405 module_exit(nfit_test_exit); 1406 MODULE_LICENSE("GPL v2"); 1407 MODULE_AUTHOR("Intel Corporation"); 1408