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 85 static 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 }; 131 132 enum SPA_mapping_type 133 nvdimm_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 } 144 145 static vm_memattr_t 146 nvdimm_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 } 168 169 static int 170 nvdimm_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 error = 0; 178 if (dev->spa_kva == NULL) { 179 mattr = nvdimm_spa_memattr(dev); 180 vm_page_initfake(&m, 0, mattr); 181 ma = &m; 182 while (uio->uio_resid > 0) { 183 if (uio->uio_offset >= dev->spa_len) 184 break; 185 off = dev->spa_phys_base + uio->uio_offset; 186 vm_page_updatefake(&m, trunc_page(off), mattr); 187 n = PAGE_SIZE; 188 if (n > uio->uio_resid) 189 n = uio->uio_resid; 190 error = uiomove_fromphys(&ma, off & PAGE_MASK, n, uio); 191 if (error != 0) 192 break; 193 } 194 } else { 195 while (uio->uio_resid > 0) { 196 if (uio->uio_offset >= dev->spa_len) 197 break; 198 n = INT_MAX; 199 if (n > uio->uio_resid) 200 n = uio->uio_resid; 201 if (uio->uio_offset + n > dev->spa_len) 202 n = dev->spa_len - uio->uio_offset; 203 error = uiomove((char *)dev->spa_kva + uio->uio_offset, 204 n, uio); 205 if (error != 0) 206 break; 207 } 208 } 209 return (error); 210 } 211 212 static int 213 nvdimm_spa_rw(struct cdev *dev, struct uio *uio, int ioflag) 214 { 215 216 return (nvdimm_spa_uio(dev->si_drv1, uio)); 217 } 218 219 static int 220 nvdimm_spa_ioctl(struct cdev *cdev, u_long cmd, caddr_t data, int fflag, 221 struct thread *td) 222 { 223 struct nvdimm_spa_dev *dev; 224 int error; 225 226 dev = cdev->si_drv1; 227 error = 0; 228 switch (cmd) { 229 case DIOCGSECTORSIZE: 230 *(u_int *)data = DEV_BSIZE; 231 break; 232 case DIOCGMEDIASIZE: 233 *(off_t *)data = dev->spa_len; 234 break; 235 default: 236 error = ENOTTY; 237 break; 238 } 239 return (error); 240 } 241 242 static int 243 nvdimm_spa_mmap_single(struct cdev *cdev, vm_ooffset_t *offset, vm_size_t size, 244 vm_object_t *objp, int nprot) 245 { 246 struct nvdimm_spa_dev *dev; 247 248 dev = cdev->si_drv1; 249 if (dev->spa_obj == NULL) 250 return (ENXIO); 251 if (*offset >= dev->spa_len || *offset + size < *offset || 252 *offset + size > dev->spa_len) 253 return (EINVAL); 254 vm_object_reference(dev->spa_obj); 255 *objp = dev->spa_obj; 256 return (0); 257 } 258 259 static struct cdevsw spa_cdevsw = { 260 .d_version = D_VERSION, 261 .d_flags = D_DISK, 262 .d_name = "nvdimm_spa", 263 .d_read = nvdimm_spa_rw, 264 .d_write = nvdimm_spa_rw, 265 .d_ioctl = nvdimm_spa_ioctl, 266 .d_mmap_single = nvdimm_spa_mmap_single, 267 }; 268 269 static void 270 nvdimm_spa_g_all_unmapped(struct nvdimm_spa_dev *dev, struct bio *bp, int rw) 271 { 272 struct vm_page maa[bp->bio_ma_n]; 273 vm_page_t ma[bp->bio_ma_n]; 274 vm_memattr_t mattr; 275 int i; 276 277 mattr = nvdimm_spa_memattr(dev); 278 for (i = 0; i < nitems(ma); i++) { 279 maa[i].flags = 0; 280 vm_page_initfake(&maa[i], dev->spa_phys_base + 281 trunc_page(bp->bio_offset) + PAGE_SIZE * i, mattr); 282 ma[i] = &maa[i]; 283 } 284 if (rw == BIO_READ) 285 pmap_copy_pages(ma, bp->bio_offset & PAGE_MASK, bp->bio_ma, 286 bp->bio_ma_offset, bp->bio_length); 287 else 288 pmap_copy_pages(bp->bio_ma, bp->bio_ma_offset, ma, 289 bp->bio_offset & PAGE_MASK, bp->bio_length); 290 } 291 292 static void 293 nvdimm_spa_g_thread(void *arg) 294 { 295 struct g_spa *sc; 296 struct bio *bp; 297 struct uio auio; 298 struct iovec aiovec; 299 int error; 300 301 sc = arg; 302 for (;;) { 303 mtx_lock(&sc->spa_g_mtx); 304 for (;;) { 305 bp = bioq_takefirst(&sc->spa_g_queue); 306 if (bp != NULL) 307 break; 308 msleep(&sc->spa_g_queue, &sc->spa_g_mtx, PRIBIO, 309 "spa_g", 0); 310 if (!sc->spa_g_proc_run) { 311 sc->spa_g_proc_exiting = true; 312 wakeup(&sc->spa_g_queue); 313 mtx_unlock(&sc->spa_g_mtx); 314 kproc_exit(0); 315 } 316 continue; 317 } 318 mtx_unlock(&sc->spa_g_mtx); 319 if (bp->bio_cmd != BIO_READ && bp->bio_cmd != BIO_WRITE && 320 bp->bio_cmd != BIO_FLUSH) { 321 error = EOPNOTSUPP; 322 goto completed; 323 } 324 325 error = 0; 326 if (bp->bio_cmd == BIO_FLUSH) { 327 if (sc->dev->spa_kva != NULL) { 328 pmap_large_map_wb(sc->dev->spa_kva, 329 sc->dev->spa_len); 330 } else { 331 pmap_flush_cache_phys_range( 332 (vm_paddr_t)sc->dev->spa_phys_base, 333 (vm_paddr_t)sc->dev->spa_phys_base + 334 sc->dev->spa_len, 335 nvdimm_spa_memattr(sc->dev)); 336 } 337 /* 338 * XXX flush IMC 339 */ 340 goto completed; 341 } 342 343 if ((bp->bio_flags & BIO_UNMAPPED) != 0) { 344 if (sc->dev->spa_kva != NULL) { 345 aiovec.iov_base = (char *)sc->dev->spa_kva + 346 bp->bio_offset; 347 aiovec.iov_len = bp->bio_length; 348 auio.uio_iov = &aiovec; 349 auio.uio_iovcnt = 1; 350 auio.uio_resid = bp->bio_length; 351 auio.uio_offset = bp->bio_offset; 352 auio.uio_segflg = UIO_SYSSPACE; 353 auio.uio_rw = bp->bio_cmd == BIO_READ ? 354 UIO_WRITE : UIO_READ; 355 auio.uio_td = curthread; 356 error = uiomove_fromphys(bp->bio_ma, 357 bp->bio_ma_offset, bp->bio_length, &auio); 358 bp->bio_resid = auio.uio_resid; 359 } else { 360 nvdimm_spa_g_all_unmapped(sc->dev, bp, 361 bp->bio_cmd); 362 bp->bio_resid = bp->bio_length; 363 error = 0; 364 } 365 } else { 366 aiovec.iov_base = bp->bio_data; 367 aiovec.iov_len = bp->bio_length; 368 auio.uio_iov = &aiovec; 369 auio.uio_iovcnt = 1; 370 auio.uio_resid = bp->bio_length; 371 auio.uio_offset = bp->bio_offset; 372 auio.uio_segflg = UIO_SYSSPACE; 373 auio.uio_rw = bp->bio_cmd == BIO_READ ? UIO_READ : 374 UIO_WRITE; 375 auio.uio_td = curthread; 376 error = nvdimm_spa_uio(sc->dev, &auio); 377 bp->bio_resid = auio.uio_resid; 378 } 379 bp->bio_bcount = bp->bio_length; 380 devstat_end_transaction_bio(sc->spa_g_devstat, bp); 381 completed: 382 bp->bio_completed = bp->bio_length; 383 g_io_deliver(bp, error); 384 } 385 } 386 387 static void 388 nvdimm_spa_g_start(struct bio *bp) 389 { 390 struct g_spa *sc; 391 392 sc = bp->bio_to->geom->softc; 393 if (bp->bio_cmd == BIO_READ || bp->bio_cmd == BIO_WRITE) { 394 mtx_lock(&sc->spa_g_stat_mtx); 395 devstat_start_transaction_bio(sc->spa_g_devstat, bp); 396 mtx_unlock(&sc->spa_g_stat_mtx); 397 } 398 mtx_lock(&sc->spa_g_mtx); 399 bioq_disksort(&sc->spa_g_queue, bp); 400 wakeup(&sc->spa_g_queue); 401 mtx_unlock(&sc->spa_g_mtx); 402 } 403 404 static int 405 nvdimm_spa_g_access(struct g_provider *pp, int r, int w, int e) 406 { 407 408 return (0); 409 } 410 411 static struct g_geom * nvdimm_spa_g_create(struct nvdimm_spa_dev *dev, 412 const char *name); 413 static g_ctl_destroy_geom_t nvdimm_spa_g_destroy_geom; 414 415 struct g_class nvdimm_spa_g_class = { 416 .name = "SPA", 417 .version = G_VERSION, 418 .start = nvdimm_spa_g_start, 419 .access = nvdimm_spa_g_access, 420 .destroy_geom = nvdimm_spa_g_destroy_geom, 421 }; 422 DECLARE_GEOM_CLASS(nvdimm_spa_g_class, g_spa); 423 424 int 425 nvdimm_spa_init(struct SPA_mapping *spa, ACPI_NFIT_SYSTEM_ADDRESS *nfitaddr, 426 enum SPA_mapping_type spa_type) 427 { 428 char *name; 429 int error; 430 431 spa->spa_type = spa_type; 432 spa->spa_nfit_idx = nfitaddr->RangeIndex; 433 spa->dev.spa_domain = 434 ((nfitaddr->Flags & ACPI_NFIT_PROXIMITY_VALID) != 0) ? 435 nfitaddr->ProximityDomain : -1; 436 spa->dev.spa_phys_base = nfitaddr->Address; 437 spa->dev.spa_len = nfitaddr->Length; 438 spa->dev.spa_efi_mem_flags = nfitaddr->MemoryMapping; 439 if (bootverbose) { 440 printf("NVDIMM SPA%d base %#016jx len %#016jx %s fl %#jx\n", 441 spa->spa_nfit_idx, 442 (uintmax_t)spa->dev.spa_phys_base, 443 (uintmax_t)spa->dev.spa_len, 444 nvdimm_SPA_uuid_list[spa_type].u_name, 445 spa->dev.spa_efi_mem_flags); 446 } 447 if (!nvdimm_SPA_uuid_list[spa_type].u_usr_acc) 448 return (0); 449 450 asprintf(&name, M_NVDIMM, "spa%d", spa->spa_nfit_idx); 451 error = nvdimm_spa_dev_init(&spa->dev, name); 452 free(name, M_NVDIMM); 453 return (error); 454 } 455 456 int 457 nvdimm_spa_dev_init(struct nvdimm_spa_dev *dev, const char *name) 458 { 459 struct make_dev_args mda; 460 struct sglist *spa_sg; 461 char *devname; 462 int error, error1; 463 464 error1 = pmap_large_map(dev->spa_phys_base, dev->spa_len, 465 &dev->spa_kva, nvdimm_spa_memattr(dev)); 466 if (error1 != 0) { 467 printf("NVDIMM %s cannot map into KVA, error %d\n", name, 468 error1); 469 dev->spa_kva = NULL; 470 } 471 472 spa_sg = sglist_alloc(1, M_WAITOK); 473 error = sglist_append_phys(spa_sg, dev->spa_phys_base, 474 dev->spa_len); 475 if (error == 0) { 476 dev->spa_obj = vm_pager_allocate(OBJT_SG, spa_sg, dev->spa_len, 477 VM_PROT_ALL, 0, NULL); 478 if (dev->spa_obj == NULL) { 479 printf("NVDIMM %s failed to alloc vm object", name); 480 sglist_free(spa_sg); 481 } 482 } else { 483 printf("NVDIMM %s failed to init sglist, error %d", name, 484 error); 485 sglist_free(spa_sg); 486 } 487 488 make_dev_args_init(&mda); 489 mda.mda_flags = MAKEDEV_WAITOK | MAKEDEV_CHECKNAME; 490 mda.mda_devsw = &spa_cdevsw; 491 mda.mda_cr = NULL; 492 mda.mda_uid = UID_ROOT; 493 mda.mda_gid = GID_OPERATOR; 494 mda.mda_mode = 0660; 495 mda.mda_si_drv1 = dev; 496 asprintf(&devname, M_NVDIMM, "nvdimm_%s", name); 497 error = make_dev_s(&mda, &dev->spa_dev, "%s", devname); 498 free(devname, M_NVDIMM); 499 if (error != 0) { 500 printf("NVDIMM %s cannot create devfs node, error %d\n", name, 501 error); 502 if (error1 == 0) 503 error1 = error; 504 } 505 dev->spa_g = nvdimm_spa_g_create(dev, name); 506 if (dev->spa_g == NULL && error1 == 0) 507 error1 = ENXIO; 508 return (error1); 509 } 510 511 static struct g_geom * 512 nvdimm_spa_g_create(struct nvdimm_spa_dev *dev, const char *name) 513 { 514 struct g_geom *gp; 515 struct g_spa *sc; 516 int error; 517 518 gp = NULL; 519 sc = malloc(sizeof(struct g_spa), M_NVDIMM, M_WAITOK | M_ZERO); 520 sc->dev = dev; 521 bioq_init(&sc->spa_g_queue); 522 mtx_init(&sc->spa_g_mtx, "spag", NULL, MTX_DEF); 523 mtx_init(&sc->spa_g_stat_mtx, "spagst", NULL, MTX_DEF); 524 sc->spa_g_proc_run = true; 525 sc->spa_g_proc_exiting = false; 526 error = kproc_create(nvdimm_spa_g_thread, sc, &sc->spa_g_proc, 0, 0, 527 "g_spa"); 528 if (error != 0) { 529 mtx_destroy(&sc->spa_g_mtx); 530 mtx_destroy(&sc->spa_g_stat_mtx); 531 free(sc, M_NVDIMM); 532 printf("NVDIMM %s cannot create geom worker, error %d\n", name, 533 error); 534 } else { 535 g_topology_lock(); 536 gp = g_new_geomf(&nvdimm_spa_g_class, "%s", name); 537 gp->softc = sc; 538 sc->spa_p = g_new_providerf(gp, "%s", name); 539 sc->spa_p->mediasize = dev->spa_len; 540 sc->spa_p->sectorsize = DEV_BSIZE; 541 sc->spa_p->flags |= G_PF_DIRECT_SEND | G_PF_DIRECT_RECEIVE | 542 G_PF_ACCEPT_UNMAPPED; 543 g_error_provider(sc->spa_p, 0); 544 sc->spa_g_devstat = devstat_new_entry("spa", -1, DEV_BSIZE, 545 DEVSTAT_ALL_SUPPORTED, DEVSTAT_TYPE_DIRECT, 546 DEVSTAT_PRIORITY_MAX); 547 g_topology_unlock(); 548 } 549 return (gp); 550 } 551 552 void 553 nvdimm_spa_fini(struct SPA_mapping *spa) 554 { 555 556 nvdimm_spa_dev_fini(&spa->dev); 557 } 558 559 void 560 nvdimm_spa_dev_fini(struct nvdimm_spa_dev *dev) 561 { 562 563 if (dev->spa_g != NULL) { 564 g_topology_lock(); 565 nvdimm_spa_g_destroy_geom(NULL, dev->spa_g->class, dev->spa_g); 566 g_topology_unlock(); 567 } 568 if (dev->spa_dev != NULL) { 569 destroy_dev(dev->spa_dev); 570 dev->spa_dev = NULL; 571 } 572 vm_object_deallocate(dev->spa_obj); 573 if (dev->spa_kva != NULL) { 574 pmap_large_unmap(dev->spa_kva, dev->spa_len); 575 dev->spa_kva = NULL; 576 } 577 } 578 579 static int 580 nvdimm_spa_g_destroy_geom(struct gctl_req *req, struct g_class *cp, 581 struct g_geom *gp) 582 { 583 struct g_spa *sc; 584 585 sc = gp->softc; 586 mtx_lock(&sc->spa_g_mtx); 587 sc->spa_g_proc_run = false; 588 wakeup(&sc->spa_g_queue); 589 while (!sc->spa_g_proc_exiting) 590 msleep(&sc->spa_g_queue, &sc->spa_g_mtx, PRIBIO, "spa_e", 0); 591 mtx_unlock(&sc->spa_g_mtx); 592 g_topology_assert(); 593 g_wither_geom(gp, ENXIO); 594 sc->spa_p = NULL; 595 if (sc->spa_g_devstat != NULL) { 596 devstat_remove_entry(sc->spa_g_devstat); 597 sc->spa_g_devstat = NULL; 598 } 599 mtx_destroy(&sc->spa_g_mtx); 600 mtx_destroy(&sc->spa_g_stat_mtx); 601 free(sc, M_NVDIMM); 602 return (0); 603 } 604