1/*- 2 * Copyright (c) 2017, 2018 The FreeBSD Foundation 3 * All rights reserved. 4 * Copyright (c) 2018, 2019 Intel Corporation 5 * 6 * This software was developed by Konstantin Belousov <kib@FreeBSD.org> 7 * under sponsorship from the FreeBSD Foundation. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31#include <sys/cdefs.h> 32__FBSDID("$FreeBSD$"); 33 34#include "opt_acpi.h" 35#include "opt_ddb.h" 36 37#include <sys/param.h> 38#include <sys/systm.h> 39#include <sys/bio.h> 40#include <sys/bus.h> 41#include <sys/conf.h> 42#include <sys/devicestat.h> 43#include <sys/disk.h> 44#include <sys/efi.h> 45#include <sys/kernel.h> 46#include <sys/kthread.h> 47#include <sys/limits.h> 48#include <sys/lock.h> 49#include <sys/malloc.h> 50#include <sys/module.h> 51#include <sys/rwlock.h> 52#include <sys/sglist.h> 53#include <sys/uio.h> 54#include <sys/uuid.h> 55#include <geom/geom.h> 56#include <geom/geom_int.h> 57#include <machine/vmparam.h> 58#include <vm/vm.h> 59#include <vm/vm_object.h> 60#include <vm/vm_page.h> 61#include <vm/vm_pager.h> 62#include <contrib/dev/acpica/include/acpi.h> 63#include <contrib/dev/acpica/include/accommon.h> 64#include <contrib/dev/acpica/include/acuuid.h> 65#include <dev/acpica/acpivar.h> 66#include <dev/nvdimm/nvdimm_var.h> 67 68#define UUID_INITIALIZER_VOLATILE_MEMORY \ 69 {0x7305944f,0xfdda,0x44e3,0xb1,0x6c,{0x3f,0x22,0xd2,0x52,0xe5,0xd0}} 70#define UUID_INITIALIZER_PERSISTENT_MEMORY \ 71 {0x66f0d379,0xb4f3,0x4074,0xac,0x43,{0x0d,0x33,0x18,0xb7,0x8c,0xdb}} 72#define UUID_INITIALIZER_CONTROL_REGION \ 73 {0x92f701f6,0x13b4,0x405d,0x91,0x0b,{0x29,0x93,0x67,0xe8,0x23,0x4c}} 74#define UUID_INITIALIZER_DATA_REGION \ 75 {0x91af0530,0x5d86,0x470e,0xa6,0xb0,{0x0a,0x2d,0xb9,0x40,0x82,0x49}} 76#define UUID_INITIALIZER_VOLATILE_VIRTUAL_DISK \ 77 {0x77ab535a,0x45fc,0x624b,0x55,0x60,{0xf7,0xb2,0x81,0xd1,0xf9,0x6e}} 78#define UUID_INITIALIZER_VOLATILE_VIRTUAL_CD \ 79 {0x3d5abd30,0x4175,0x87ce,0x6d,0x64,{0xd2,0xad,0xe5,0x23,0xc4,0xbb}} 80#define UUID_INITIALIZER_PERSISTENT_VIRTUAL_DISK \ 81 {0x5cea02c9,0x4d07,0x69d3,0x26,0x9f,{0x44,0x96,0xfb,0xe0,0x96,0xf9}} 82#define UUID_INITIALIZER_PERSISTENT_VIRTUAL_CD \ 83 {0x08018188,0x42cd,0xbb48,0x10,0x0f,{0x53,0x87,0xd5,0x3d,0xed,0x3d}} 84 85static struct nvdimm_SPA_uuid_list_elm { 86 const char *u_name; 87 struct uuid u_id; 88 const bool u_usr_acc; 89} nvdimm_SPA_uuid_list[] = { 90 [SPA_TYPE_VOLATILE_MEMORY] = { 91 .u_name = "VOLA MEM ", 92 .u_id = UUID_INITIALIZER_VOLATILE_MEMORY, 93 .u_usr_acc = true, 94 }, 95 [SPA_TYPE_PERSISTENT_MEMORY] = { 96 .u_name = "PERS MEM", 97 .u_id = UUID_INITIALIZER_PERSISTENT_MEMORY, 98 .u_usr_acc = true, 99 }, 100 [SPA_TYPE_CONTROL_REGION] = { 101 .u_name = "CTRL RG ", 102 .u_id = UUID_INITIALIZER_CONTROL_REGION, 103 .u_usr_acc = false, 104 }, 105 [SPA_TYPE_DATA_REGION] = { 106 .u_name = "DATA RG ", 107 .u_id = UUID_INITIALIZER_DATA_REGION, 108 .u_usr_acc = true, 109 }, 110 [SPA_TYPE_VOLATILE_VIRTUAL_DISK] = { 111 .u_name = "VIRT DSK", 112 .u_id = UUID_INITIALIZER_VOLATILE_VIRTUAL_DISK, 113 .u_usr_acc = true, 114 }, 115 [SPA_TYPE_VOLATILE_VIRTUAL_CD] = { 116 .u_name = "VIRT CD ", 117 .u_id = UUID_INITIALIZER_VOLATILE_VIRTUAL_CD, 118 .u_usr_acc = true, 119 }, 120 [SPA_TYPE_PERSISTENT_VIRTUAL_DISK] = { 121 .u_name = "PV DSK ", 122 .u_id = UUID_INITIALIZER_PERSISTENT_VIRTUAL_DISK, 123 .u_usr_acc = true, 124 }, 125 [SPA_TYPE_PERSISTENT_VIRTUAL_CD] = { 126 .u_name = "PV CD ", 127 .u_id = UUID_INITIALIZER_PERSISTENT_VIRTUAL_CD, 128 .u_usr_acc = true, 129 }, 130}; 131 132enum SPA_mapping_type 133nvdimm_spa_type_from_uuid(struct uuid *uuid) 134{ 135 int j; 136 137 for (j = 0; j < nitems(nvdimm_SPA_uuid_list); j++) { 138 if (uuidcmp(uuid, &nvdimm_SPA_uuid_list[j].u_id) != 0) 139 continue; 140 return (j); 141 } 142 return (SPA_TYPE_UNKNOWN); 143} 144 145static vm_memattr_t 146nvdimm_spa_memattr(struct nvdimm_spa_dev *dev) 147{ 148 vm_memattr_t mode; 149 150 if ((dev->spa_efi_mem_flags & EFI_MD_ATTR_WB) != 0) 151 mode = VM_MEMATTR_WRITE_BACK; 152 else if ((dev->spa_efi_mem_flags & EFI_MD_ATTR_WT) != 0) 153 mode = VM_MEMATTR_WRITE_THROUGH; 154 else if ((dev->spa_efi_mem_flags & EFI_MD_ATTR_WC) != 0) 155 mode = VM_MEMATTR_WRITE_COMBINING; 156 else if ((dev->spa_efi_mem_flags & EFI_MD_ATTR_WP) != 0) 157 mode = VM_MEMATTR_WRITE_PROTECTED; 158 else if ((dev->spa_efi_mem_flags & EFI_MD_ATTR_UC) != 0) 159 mode = VM_MEMATTR_UNCACHEABLE; 160 else { 161 if (bootverbose) 162 printf("SPA mapping attr %#lx unsupported\n", 163 dev->spa_efi_mem_flags); 164 mode = VM_MEMATTR_UNCACHEABLE; 165 } 166 return (mode); 167} 168 169static int 170nvdimm_spa_uio(struct nvdimm_spa_dev *dev, struct uio *uio) 171{ 172 struct vm_page m, *ma; 173 off_t off; 174 vm_memattr_t mattr; 175 int error, n; 176 177 if (dev->spa_kva == NULL) { 178 mattr = nvdimm_spa_memattr(dev); 179 vm_page_initfake(&m, 0, mattr); 180 ma = &m; 181 while (uio->uio_resid > 0) { 182 if (uio->uio_offset >= dev->spa_len) 183 break; 184 off = dev->spa_phys_base + uio->uio_offset; 185 vm_page_updatefake(&m, trunc_page(off), mattr); 186 n = PAGE_SIZE; 187 if (n > uio->uio_resid) 188 n = uio->uio_resid; 189 error = uiomove_fromphys(&ma, off & PAGE_MASK, n, uio); 190 if (error != 0) 191 break; 192 } 193 } else { 194 while (uio->uio_resid > 0) { 195 if (uio->uio_offset >= dev->spa_len) 196 break; 197 n = INT_MAX; 198 if (n > uio->uio_resid) 199 n = uio->uio_resid; 200 if (uio->uio_offset + n > dev->spa_len) 201 n = dev->spa_len - uio->uio_offset; 202 error = uiomove((char *)dev->spa_kva + uio->uio_offset, 203 n, uio); 204 if (error != 0) 205 break; 206 } 207 } 208 return (error); 209} 210 211static int 212nvdimm_spa_rw(struct cdev *dev, struct uio *uio, int ioflag) 213{ 214 215 return (nvdimm_spa_uio(dev->si_drv1, uio)); 216} 217 218static int 219nvdimm_spa_ioctl(struct cdev *cdev, u_long cmd, caddr_t data, int fflag, 220 struct thread *td) 221{ 222 struct nvdimm_spa_dev *dev; 223 int error; 224 225 dev = cdev->si_drv1; 226 error = 0; 227 switch (cmd) { 228 case DIOCGSECTORSIZE: 229 *(u_int *)data = DEV_BSIZE; 230 break; 231 case DIOCGMEDIASIZE: 232 *(off_t *)data = dev->spa_len; 233 break; 234 default: 235 error = ENOTTY; 236 break; 237 } 238 return (error); 239} 240 241static int 242nvdimm_spa_mmap_single(struct cdev *cdev, vm_ooffset_t *offset, vm_size_t size, 243 vm_object_t *objp, int nprot) 244{ 245 struct nvdimm_spa_dev *dev; 246 247 dev = cdev->si_drv1; 248 if (dev->spa_obj == NULL) 249 return (ENXIO); 250 if (*offset >= dev->spa_len || *offset + size < *offset || 251 *offset + size > dev->spa_len) 252 return (EINVAL); 253 vm_object_reference(dev->spa_obj); 254 *objp = dev->spa_obj; 255 return (0); 256} 257 258static struct cdevsw spa_cdevsw = { 259 .d_version = D_VERSION, 260 .d_flags = D_DISK, 261 .d_name = "nvdimm_spa", 262 .d_read = nvdimm_spa_rw, 263 .d_write = nvdimm_spa_rw, 264 .d_ioctl = nvdimm_spa_ioctl, 265 .d_mmap_single = nvdimm_spa_mmap_single, 266}; 267 268static void 269nvdimm_spa_g_all_unmapped(struct nvdimm_spa_dev *dev, struct bio *bp, int rw) 270{ 271 struct vm_page maa[bp->bio_ma_n]; 272 vm_page_t ma[bp->bio_ma_n]; 273 vm_memattr_t mattr; 274 int i; 275 276 mattr = nvdimm_spa_memattr(dev); 277 for (i = 0; i < nitems(ma); i++) { 278 maa[i].flags = 0; 279 vm_page_initfake(&maa[i], dev->spa_phys_base + 280 trunc_page(bp->bio_offset) + PAGE_SIZE * i, mattr); 281 ma[i] = &maa[i]; 282 } 283 if (rw == BIO_READ) 284 pmap_copy_pages(ma, bp->bio_offset & PAGE_MASK, bp->bio_ma, 285 bp->bio_ma_offset, bp->bio_length); 286 else 287 pmap_copy_pages(bp->bio_ma, bp->bio_ma_offset, ma, 288 bp->bio_offset & PAGE_MASK, bp->bio_length); 289} 290 291static void 292nvdimm_spa_g_thread(void *arg) 293{ 294 struct g_spa *sc; 295 struct bio *bp; 296 struct uio auio; 297 struct iovec aiovec; 298 int error; 299 300 sc = arg; 301 for (;;) { 302 mtx_lock(&sc->spa_g_mtx); 303 for (;;) { 304 bp = bioq_takefirst(&sc->spa_g_queue); 305 if (bp != NULL) 306 break; 307 msleep(&sc->spa_g_queue, &sc->spa_g_mtx, PRIBIO, 308 "spa_g", 0); 309 if (!sc->spa_g_proc_run) { 310 sc->spa_g_proc_exiting = true; 311 wakeup(&sc->spa_g_queue); 312 mtx_unlock(&sc->spa_g_mtx); 313 kproc_exit(0); 314 } 315 continue; 316 } 317 mtx_unlock(&sc->spa_g_mtx); 318 if (bp->bio_cmd != BIO_READ && bp->bio_cmd != BIO_WRITE && 319 bp->bio_cmd != BIO_FLUSH) { 320 error = EOPNOTSUPP; 321 goto completed; 322 } 323 324 error = 0; 325 if (bp->bio_cmd == BIO_FLUSH) { 326 if (sc->dev->spa_kva != NULL) { 327 pmap_large_map_wb(sc->dev->spa_kva, 328 sc->dev->spa_len); 329 } else { 330 pmap_flush_cache_phys_range( 331 (vm_paddr_t)sc->dev->spa_phys_base, 332 (vm_paddr_t)sc->dev->spa_phys_base + 333 sc->dev->spa_len, 334 nvdimm_spa_memattr(sc->dev)); 335 } 336 /* 337 * XXX flush IMC 338 */ 339 goto completed; 340 } 341 342 if ((bp->bio_flags & BIO_UNMAPPED) != 0) { 343 if (sc->dev->spa_kva != NULL) { 344 aiovec.iov_base = (char *)sc->dev->spa_kva + 345 bp->bio_offset; 346 aiovec.iov_len = bp->bio_length; 347 auio.uio_iov = &aiovec; 348 auio.uio_iovcnt = 1; 349 auio.uio_resid = bp->bio_length; 350 auio.uio_offset = bp->bio_offset; 351 auio.uio_segflg = UIO_SYSSPACE; 352 auio.uio_rw = bp->bio_cmd == BIO_READ ? 353 UIO_WRITE : UIO_READ; 354 auio.uio_td = curthread; 355 error = uiomove_fromphys(bp->bio_ma, 356 bp->bio_ma_offset, bp->bio_length, &auio); 357 bp->bio_resid = auio.uio_resid; 358 } else { 359 nvdimm_spa_g_all_unmapped(sc->dev, bp, 360 bp->bio_cmd); 361 bp->bio_resid = bp->bio_length; 362 error = 0; 363 } 364 } else { 365 aiovec.iov_base = bp->bio_data; 366 aiovec.iov_len = bp->bio_length; 367 auio.uio_iov = &aiovec; 368 auio.uio_iovcnt = 1; 369 auio.uio_resid = bp->bio_length; 370 auio.uio_offset = bp->bio_offset; 371 auio.uio_segflg = UIO_SYSSPACE; 372 auio.uio_rw = bp->bio_cmd == BIO_READ ? UIO_READ : 373 UIO_WRITE; 374 auio.uio_td = curthread; 375 error = nvdimm_spa_uio(sc->dev, &auio); 376 bp->bio_resid = auio.uio_resid; 377 } 378 bp->bio_bcount = bp->bio_length; 379 devstat_end_transaction_bio(sc->spa_g_devstat, bp); 380completed: 381 bp->bio_completed = bp->bio_length; 382 g_io_deliver(bp, error); 383 } 384} 385 386static void 387nvdimm_spa_g_start(struct bio *bp) 388{ 389 struct g_spa *sc; 390 391 sc = bp->bio_to->geom->softc; 392 if (bp->bio_cmd == BIO_READ || bp->bio_cmd == BIO_WRITE) { 393 mtx_lock(&sc->spa_g_stat_mtx); 394 devstat_start_transaction_bio(sc->spa_g_devstat, bp); 395 mtx_unlock(&sc->spa_g_stat_mtx); 396 } 397 mtx_lock(&sc->spa_g_mtx); 398 bioq_disksort(&sc->spa_g_queue, bp); 399 wakeup(&sc->spa_g_queue); 400 mtx_unlock(&sc->spa_g_mtx); 401} 402 403static int 404nvdimm_spa_g_access(struct g_provider *pp, int r, int w, int e) 405{ 406 407 return (0); 408} 409 410static struct g_geom * nvdimm_spa_g_create(struct nvdimm_spa_dev *dev, 411 const char *name); 412static g_ctl_destroy_geom_t nvdimm_spa_g_destroy_geom; 413 414struct g_class nvdimm_spa_g_class = { 415 .name = "SPA", 416 .version = G_VERSION, 417 .start = nvdimm_spa_g_start, 418 .access = nvdimm_spa_g_access, 419 .destroy_geom = nvdimm_spa_g_destroy_geom, 420}; 421DECLARE_GEOM_CLASS(nvdimm_spa_g_class, g_spa); 422 423int 424nvdimm_spa_init(struct SPA_mapping *spa, ACPI_NFIT_SYSTEM_ADDRESS *nfitaddr, 425 enum SPA_mapping_type spa_type) 426{ 427 char *name; 428 int error; 429 430 spa->spa_type = spa_type; 431 spa->spa_nfit_idx = nfitaddr->RangeIndex; 432 spa->dev.spa_domain = 433 ((nfitaddr->Flags & ACPI_NFIT_PROXIMITY_VALID) != 0) ? 434 nfitaddr->ProximityDomain : -1; 435 spa->dev.spa_phys_base = nfitaddr->Address; 436 spa->dev.spa_len = nfitaddr->Length; 437 spa->dev.spa_efi_mem_flags = nfitaddr->MemoryMapping; 438 if (bootverbose) { 439 printf("NVDIMM SPA%d base %#016jx len %#016jx %s fl %#jx\n", 440 spa->spa_nfit_idx, 441 (uintmax_t)spa->dev.spa_phys_base, 442 (uintmax_t)spa->dev.spa_len, 443 nvdimm_SPA_uuid_list[spa_type].u_name, 444 spa->dev.spa_efi_mem_flags); 445 } 446 if (!nvdimm_SPA_uuid_list[spa_type].u_usr_acc) 447 return (0); 448 449 asprintf(&name, M_NVDIMM, "spa%d", spa->spa_nfit_idx); 450 error = nvdimm_spa_dev_init(&spa->dev, name); 451 free(name, M_NVDIMM); 452 return (error); 453} 454 455int 456nvdimm_spa_dev_init(struct nvdimm_spa_dev *dev, const char *name) 457{ 458 struct make_dev_args mda; 459 struct sglist *spa_sg; 460 char *devname; 461 int error, error1; 462 463 error1 = pmap_large_map(dev->spa_phys_base, dev->spa_len, 464 &dev->spa_kva, nvdimm_spa_memattr(dev)); 465 if (error1 != 0) { 466 printf("NVDIMM %s cannot map into KVA, error %d\n", name, 467 error1); 468 dev->spa_kva = NULL; 469 } 470 471 spa_sg = sglist_alloc(1, M_WAITOK); 472 error = sglist_append_phys(spa_sg, dev->spa_phys_base, 473 dev->spa_len); 474 if (error == 0) { 475 dev->spa_obj = vm_pager_allocate(OBJT_SG, spa_sg, dev->spa_len, 476 VM_PROT_ALL, 0, NULL); 477 if (dev->spa_obj == NULL) { 478 printf("NVDIMM %s failed to alloc vm object", name); 479 sglist_free(spa_sg); 480 } 481 } else { 482 printf("NVDIMM %s failed to init sglist, error %d", name, 483 error); 484 sglist_free(spa_sg); 485 } 486 487 make_dev_args_init(&mda); 488 mda.mda_flags = MAKEDEV_WAITOK | MAKEDEV_CHECKNAME; 489 mda.mda_devsw = &spa_cdevsw; 490 mda.mda_cr = NULL; 491 mda.mda_uid = UID_ROOT; 492 mda.mda_gid = GID_OPERATOR; 493 mda.mda_mode = 0660; 494 mda.mda_si_drv1 = dev; 495 asprintf(&devname, M_NVDIMM, "nvdimm_%s", name); 496 error = make_dev_s(&mda, &dev->spa_dev, "%s", devname); 497 free(devname, M_NVDIMM); 498 if (error != 0) { 499 printf("NVDIMM %s cannot create devfs node, error %d\n", name, 500 error); 501 if (error1 == 0) 502 error1 = error; 503 } 504 dev->spa_g = nvdimm_spa_g_create(dev, name); 505 if (dev->spa_g == NULL && error1 == 0) 506 error1 = ENXIO; 507 return (error1); 508} 509 510static struct g_geom * 511nvdimm_spa_g_create(struct nvdimm_spa_dev *dev, const char *name) 512{ 513 struct g_geom *gp; 514 struct g_spa *sc; 515 int error; 516 517 gp = NULL; 518 sc = malloc(sizeof(struct g_spa), M_NVDIMM, M_WAITOK | M_ZERO); 519 sc->dev = dev; 520 bioq_init(&sc->spa_g_queue); 521 mtx_init(&sc->spa_g_mtx, "spag", NULL, MTX_DEF); 522 mtx_init(&sc->spa_g_stat_mtx, "spagst", NULL, MTX_DEF); 523 sc->spa_g_proc_run = true; 524 sc->spa_g_proc_exiting = false; 525 error = kproc_create(nvdimm_spa_g_thread, sc, &sc->spa_g_proc, 0, 0, 526 "g_spa"); 527 if (error != 0) { 528 mtx_destroy(&sc->spa_g_mtx); 529 mtx_destroy(&sc->spa_g_stat_mtx); 530 free(sc, M_NVDIMM); 531 printf("NVDIMM %s cannot create geom worker, error %d\n", name, 532 error); 533 } else { 534 g_topology_lock(); 535 gp = g_new_geomf(&nvdimm_spa_g_class, "%s", name); 536 gp->softc = sc; 537 sc->spa_p = g_new_providerf(gp, "%s", name); 538 sc->spa_p->mediasize = dev->spa_len; 539 sc->spa_p->sectorsize = DEV_BSIZE; 540 sc->spa_p->flags |= G_PF_DIRECT_SEND | G_PF_DIRECT_RECEIVE | 541 G_PF_ACCEPT_UNMAPPED; 542 g_error_provider(sc->spa_p, 0); 543 sc->spa_g_devstat = devstat_new_entry("spa", -1, DEV_BSIZE, 544 DEVSTAT_ALL_SUPPORTED, DEVSTAT_TYPE_DIRECT, 545 DEVSTAT_PRIORITY_MAX); 546 g_topology_unlock(); 547 } 548 return (gp); 549} 550 551void 552nvdimm_spa_fini(struct SPA_mapping *spa) 553{ 554 555 nvdimm_spa_dev_fini(&spa->dev); 556} 557 558void 559nvdimm_spa_dev_fini(struct nvdimm_spa_dev *dev) 560{ 561 562 if (dev->spa_g != NULL) { 563 g_topology_lock(); 564 nvdimm_spa_g_destroy_geom(NULL, dev->spa_g->class, dev->spa_g); 565 g_topology_unlock(); 566 } 567 if (dev->spa_dev != NULL) { 568 destroy_dev(dev->spa_dev); 569 dev->spa_dev = NULL; 570 } 571 vm_object_deallocate(dev->spa_obj); 572 if (dev->spa_kva != NULL) { 573 pmap_large_unmap(dev->spa_kva, dev->spa_len); 574 dev->spa_kva = NULL; 575 } 576} 577 578static int 579nvdimm_spa_g_destroy_geom(struct gctl_req *req, struct g_class *cp, 580 struct g_geom *gp) 581{ 582 struct g_spa *sc; 583 584 sc = gp->softc; 585 mtx_lock(&sc->spa_g_mtx); 586 sc->spa_g_proc_run = false; 587 wakeup(&sc->spa_g_queue); 588 while (!sc->spa_g_proc_exiting) 589 msleep(&sc->spa_g_queue, &sc->spa_g_mtx, PRIBIO, "spa_e", 0); 590 mtx_unlock(&sc->spa_g_mtx); 591 g_topology_assert(); 592 g_wither_geom(gp, ENXIO); 593 sc->spa_p = NULL; 594 if (sc->spa_g_devstat != NULL) { 595 devstat_remove_entry(sc->spa_g_devstat); 596 sc->spa_g_devstat = NULL; 597 } 598 mtx_destroy(&sc->spa_g_mtx); 599 mtx_destroy(&sc->spa_g_stat_mtx); 600 free(sc, M_NVDIMM); 601 return (0); 602} 603