Index: head/sys/dev/nvdimm/nvdimm_acpi.c =================================================================== --- head/sys/dev/nvdimm/nvdimm_acpi.c (revision 354644) +++ head/sys/dev/nvdimm/nvdimm_acpi.c (revision 354645) @@ -1,283 +1,285 @@ /*- * Copyright (c) 2017 The FreeBSD Foundation * Copyright (c) 2018, 2019 Intel Corporation * * This software was developed by Konstantin Belousov * under sponsorship from the FreeBSD Foundation. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include "opt_acpi.h" #include "opt_ddb.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define _COMPONENT ACPI_OEM ACPI_MODULE_NAME("NVDIMM_ACPI") struct nvdimm_root_dev { SLIST_HEAD(, SPA_mapping) spas; }; static MALLOC_DEFINE(M_NVDIMM_ACPI, "nvdimm_acpi", "NVDIMM ACPI bus memory"); static ACPI_STATUS find_dimm(ACPI_HANDLE handle, UINT32 nesting_level, void *context, void **return_value) { ACPI_DEVICE_INFO *device_info; ACPI_STATUS status; status = AcpiGetObjectInfo(handle, &device_info); if (ACPI_FAILURE(status)) return_ACPI_STATUS(AE_ERROR); if (device_info->Address == (uintptr_t)context) { *(ACPI_HANDLE *)return_value = handle; return_ACPI_STATUS(AE_CTRL_TERMINATE); } return_ACPI_STATUS(AE_OK); } static ACPI_HANDLE get_dimm_acpi_handle(ACPI_HANDLE root_handle, nfit_handle_t adr) { ACPI_HANDLE res; ACPI_STATUS status; res = NULL; status = AcpiWalkNamespace(ACPI_TYPE_DEVICE, root_handle, 1, find_dimm, NULL, (void *)(uintptr_t)adr, &res); if (ACPI_FAILURE(status)) res = NULL; return (res); } static int nvdimm_root_create_devs(device_t dev, ACPI_TABLE_NFIT *nfitbl) { ACPI_HANDLE root_handle, dimm_handle; device_t child; nfit_handle_t *dimm_ids, *dimm; uintptr_t *ivars; int num_dimm_ids; root_handle = acpi_get_handle(dev); acpi_nfit_get_dimm_ids(nfitbl, &dimm_ids, &num_dimm_ids); for (dimm = dimm_ids; dimm < dimm_ids + num_dimm_ids; dimm++) { dimm_handle = get_dimm_acpi_handle(root_handle, *dimm); if (dimm_handle == NULL) continue; child = BUS_ADD_CHILD(dev, 100, "nvdimm", -1); if (child == NULL) { device_printf(dev, "failed to create nvdimm\n"); return (ENXIO); } ivars = mallocarray(NVDIMM_ROOT_IVAR_MAX, sizeof(uintptr_t), M_NVDIMM_ACPI, M_ZERO | M_WAITOK); device_set_ivars(child, ivars); nvdimm_root_set_acpi_handle(child, dimm_handle); nvdimm_root_set_device_handle(child, *dimm); } free(dimm_ids, M_NVDIMM_ACPI); return (0); } static int nvdimm_root_create_spas(struct nvdimm_root_dev *dev, ACPI_TABLE_NFIT *nfitbl) { ACPI_NFIT_SYSTEM_ADDRESS **spas, **spa; struct SPA_mapping *spa_mapping; enum SPA_mapping_type spa_type; int error, num_spas; error = 0; acpi_nfit_get_spa_ranges(nfitbl, &spas, &num_spas); for (spa = spas; spa < spas + num_spas; spa++) { spa_type = nvdimm_spa_type_from_uuid( (struct uuid *)(*spa)->RangeGuid); if (spa_type == SPA_TYPE_UNKNOWN) continue; spa_mapping = malloc(sizeof(struct SPA_mapping), M_NVDIMM_ACPI, M_WAITOK | M_ZERO); error = nvdimm_spa_init(spa_mapping, *spa, spa_type); if (error != 0) { nvdimm_spa_fini(spa_mapping); free(spa_mapping, M_NVDIMM_ACPI); break; } - nvdimm_create_namespaces(spa_mapping, nfitbl); + if (nvdimm_spa_type_user_accessible(spa_type) && + spa_type != SPA_TYPE_CONTROL_REGION) + nvdimm_create_namespaces(spa_mapping, nfitbl); SLIST_INSERT_HEAD(&dev->spas, spa_mapping, link); } free(spas, M_NVDIMM_ACPI); return (error); } static char *nvdimm_root_id[] = {"ACPI0012", NULL}; static int nvdimm_root_probe(device_t dev) { int rv; if (acpi_disabled("nvdimm")) return (ENXIO); rv = ACPI_ID_PROBE(device_get_parent(dev), dev, nvdimm_root_id, NULL); if (rv <= 0) device_set_desc(dev, "ACPI NVDIMM root device"); return (rv); } static int nvdimm_root_attach(device_t dev) { struct nvdimm_root_dev *root; ACPI_TABLE_NFIT *nfitbl; ACPI_STATUS status; int error; status = AcpiGetTable(ACPI_SIG_NFIT, 1, (ACPI_TABLE_HEADER **)&nfitbl); if (ACPI_FAILURE(status)) { device_printf(dev, "cannot get NFIT\n"); return (ENXIO); } error = nvdimm_root_create_devs(dev, nfitbl); if (error != 0) return (error); error = bus_generic_attach(dev); if (error != 0) return (error); root = device_get_softc(dev); error = nvdimm_root_create_spas(root, nfitbl); AcpiPutTable(&nfitbl->Header); return (error); } static int nvdimm_root_detach(device_t dev) { struct nvdimm_root_dev *root; struct SPA_mapping *spa, *next; device_t *children; int i, error, num_children; root = device_get_softc(dev); SLIST_FOREACH_SAFE(spa, &root->spas, link, next) { nvdimm_destroy_namespaces(spa); nvdimm_spa_fini(spa); SLIST_REMOVE_HEAD(&root->spas, link); free(spa, M_NVDIMM_ACPI); } error = bus_generic_detach(dev); if (error != 0) return (error); error = device_get_children(dev, &children, &num_children); if (error != 0) return (error); for (i = 0; i < num_children; i++) free(device_get_ivars(children[i]), M_NVDIMM_ACPI); free(children, M_TEMP); error = device_delete_children(dev); return (error); } static int nvdimm_root_read_ivar(device_t dev, device_t child, int index, uintptr_t *result) { if (index < 0 || index >= NVDIMM_ROOT_IVAR_MAX) return (ENOENT); *result = ((uintptr_t *)device_get_ivars(child))[index]; return (0); } static int nvdimm_root_write_ivar(device_t dev, device_t child, int index, uintptr_t value) { if (index < 0 || index >= NVDIMM_ROOT_IVAR_MAX) return (ENOENT); ((uintptr_t *)device_get_ivars(child))[index] = value; return (0); } static int nvdimm_root_child_location_str(device_t dev, device_t child, char *buf, size_t buflen) { ACPI_HANDLE handle; int res; handle = nvdimm_root_get_acpi_handle(child); if (handle != NULL) res = snprintf(buf, buflen, "handle=%s", acpi_name(handle)); else res = snprintf(buf, buflen, ""); if (res >= buflen) return (EOVERFLOW); return (0); } static device_method_t nvdimm_acpi_methods[] = { DEVMETHOD(device_probe, nvdimm_root_probe), DEVMETHOD(device_attach, nvdimm_root_attach), DEVMETHOD(device_detach, nvdimm_root_detach), DEVMETHOD(bus_add_child, bus_generic_add_child), DEVMETHOD(bus_read_ivar, nvdimm_root_read_ivar), DEVMETHOD(bus_write_ivar, nvdimm_root_write_ivar), DEVMETHOD(bus_child_location_str, nvdimm_root_child_location_str), DEVMETHOD_END }; static driver_t nvdimm_acpi_driver = { "nvdimm_acpi_root", nvdimm_acpi_methods, sizeof(struct nvdimm_root_dev), }; static devclass_t nvdimm_acpi_root_devclass; DRIVER_MODULE(nvdimm_acpi_root, acpi, nvdimm_acpi_driver, nvdimm_acpi_root_devclass, NULL, NULL); MODULE_DEPEND(nvdimm_acpi_root, acpi, 1, 1, 1); Index: head/sys/dev/nvdimm/nvdimm_spa.c =================================================================== --- head/sys/dev/nvdimm/nvdimm_spa.c (revision 354644) +++ head/sys/dev/nvdimm/nvdimm_spa.c (revision 354645) @@ -1,618 +1,627 @@ /*- * Copyright (c) 2017, 2018 The FreeBSD Foundation * All rights reserved. * Copyright (c) 2018, 2019 Intel Corporation * * This software was developed by Konstantin Belousov * under sponsorship from the FreeBSD Foundation. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include "opt_acpi.h" #include "opt_ddb.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define UUID_INITIALIZER_VOLATILE_MEMORY \ {0x7305944f,0xfdda,0x44e3,0xb1,0x6c,{0x3f,0x22,0xd2,0x52,0xe5,0xd0}} #define UUID_INITIALIZER_PERSISTENT_MEMORY \ {0x66f0d379,0xb4f3,0x4074,0xac,0x43,{0x0d,0x33,0x18,0xb7,0x8c,0xdb}} #define UUID_INITIALIZER_CONTROL_REGION \ {0x92f701f6,0x13b4,0x405d,0x91,0x0b,{0x29,0x93,0x67,0xe8,0x23,0x4c}} #define UUID_INITIALIZER_DATA_REGION \ {0x91af0530,0x5d86,0x470e,0xa6,0xb0,{0x0a,0x2d,0xb9,0x40,0x82,0x49}} #define UUID_INITIALIZER_VOLATILE_VIRTUAL_DISK \ {0x77ab535a,0x45fc,0x624b,0x55,0x60,{0xf7,0xb2,0x81,0xd1,0xf9,0x6e}} #define UUID_INITIALIZER_VOLATILE_VIRTUAL_CD \ {0x3d5abd30,0x4175,0x87ce,0x6d,0x64,{0xd2,0xad,0xe5,0x23,0xc4,0xbb}} #define UUID_INITIALIZER_PERSISTENT_VIRTUAL_DISK \ {0x5cea02c9,0x4d07,0x69d3,0x26,0x9f,{0x44,0x96,0xfb,0xe0,0x96,0xf9}} #define UUID_INITIALIZER_PERSISTENT_VIRTUAL_CD \ {0x08018188,0x42cd,0xbb48,0x10,0x0f,{0x53,0x87,0xd5,0x3d,0xed,0x3d}} static struct nvdimm_SPA_uuid_list_elm { const char *u_name; struct uuid u_id; const bool u_usr_acc; } nvdimm_SPA_uuid_list[] = { [SPA_TYPE_VOLATILE_MEMORY] = { .u_name = "VOLA MEM ", .u_id = UUID_INITIALIZER_VOLATILE_MEMORY, .u_usr_acc = true, }, [SPA_TYPE_PERSISTENT_MEMORY] = { .u_name = "PERS MEM", .u_id = UUID_INITIALIZER_PERSISTENT_MEMORY, .u_usr_acc = true, }, [SPA_TYPE_CONTROL_REGION] = { .u_name = "CTRL RG ", .u_id = UUID_INITIALIZER_CONTROL_REGION, .u_usr_acc = false, }, [SPA_TYPE_DATA_REGION] = { .u_name = "DATA RG ", .u_id = UUID_INITIALIZER_DATA_REGION, .u_usr_acc = true, }, [SPA_TYPE_VOLATILE_VIRTUAL_DISK] = { .u_name = "VIRT DSK", .u_id = UUID_INITIALIZER_VOLATILE_VIRTUAL_DISK, .u_usr_acc = true, }, [SPA_TYPE_VOLATILE_VIRTUAL_CD] = { .u_name = "VIRT CD ", .u_id = UUID_INITIALIZER_VOLATILE_VIRTUAL_CD, .u_usr_acc = true, }, [SPA_TYPE_PERSISTENT_VIRTUAL_DISK] = { .u_name = "PV DSK ", .u_id = UUID_INITIALIZER_PERSISTENT_VIRTUAL_DISK, .u_usr_acc = true, }, [SPA_TYPE_PERSISTENT_VIRTUAL_CD] = { .u_name = "PV CD ", .u_id = UUID_INITIALIZER_PERSISTENT_VIRTUAL_CD, .u_usr_acc = true, }, }; enum SPA_mapping_type nvdimm_spa_type_from_name(const char *name) { int j; for (j = 0; j < nitems(nvdimm_SPA_uuid_list); j++) { if (strcmp(name, nvdimm_SPA_uuid_list[j].u_name) != 0) continue; return (j); } return (SPA_TYPE_UNKNOWN); } enum SPA_mapping_type nvdimm_spa_type_from_uuid(struct uuid *uuid) { int j; for (j = 0; j < nitems(nvdimm_SPA_uuid_list); j++) { if (uuidcmp(uuid, &nvdimm_SPA_uuid_list[j].u_id) != 0) continue; return (j); } return (SPA_TYPE_UNKNOWN); } +bool +nvdimm_spa_type_user_accessible(enum SPA_mapping_type spa_type) +{ + + if ((int)spa_type < 0 || spa_type >= nitems(nvdimm_SPA_uuid_list)) + return (false); + return (nvdimm_SPA_uuid_list[spa_type].u_usr_acc); +} + static vm_memattr_t nvdimm_spa_memattr(uint64_t efi_mem_flags) { vm_memattr_t mode; if ((efi_mem_flags & EFI_MD_ATTR_WB) != 0) mode = VM_MEMATTR_WRITE_BACK; else if ((efi_mem_flags & EFI_MD_ATTR_WT) != 0) mode = VM_MEMATTR_WRITE_THROUGH; else if ((efi_mem_flags & EFI_MD_ATTR_WC) != 0) mode = VM_MEMATTR_WRITE_COMBINING; else if ((efi_mem_flags & EFI_MD_ATTR_WP) != 0) mode = VM_MEMATTR_WRITE_PROTECTED; else if ((efi_mem_flags & EFI_MD_ATTR_UC) != 0) mode = VM_MEMATTR_UNCACHEABLE; else { if (bootverbose) printf("SPA mapping attr %#lx unsupported\n", efi_mem_flags); mode = VM_MEMATTR_UNCACHEABLE; } return (mode); } static int nvdimm_spa_uio(struct nvdimm_spa_dev *dev, struct uio *uio) { struct vm_page m, *ma; off_t off; vm_memattr_t mattr; int error, n; error = 0; if (dev->spa_kva == NULL) { mattr = dev->spa_memattr; bzero(&m, sizeof(m)); vm_page_initfake(&m, 0, mattr); ma = &m; while (uio->uio_resid > 0) { if (uio->uio_offset >= dev->spa_len) break; off = dev->spa_phys_base + uio->uio_offset; vm_page_updatefake(&m, trunc_page(off), mattr); n = PAGE_SIZE; if (n > uio->uio_resid) n = uio->uio_resid; error = uiomove_fromphys(&ma, off & PAGE_MASK, n, uio); if (error != 0) break; } } else { while (uio->uio_resid > 0) { if (uio->uio_offset >= dev->spa_len) break; n = INT_MAX; if (n > uio->uio_resid) n = uio->uio_resid; if (uio->uio_offset + n > dev->spa_len) n = dev->spa_len - uio->uio_offset; error = uiomove((char *)dev->spa_kva + uio->uio_offset, n, uio); if (error != 0) break; } } return (error); } static int nvdimm_spa_rw(struct cdev *dev, struct uio *uio, int ioflag) { return (nvdimm_spa_uio(dev->si_drv1, uio)); } static int nvdimm_spa_ioctl(struct cdev *cdev, u_long cmd, caddr_t data, int fflag, struct thread *td) { struct nvdimm_spa_dev *dev; int error; dev = cdev->si_drv1; error = 0; switch (cmd) { case DIOCGSECTORSIZE: *(u_int *)data = DEV_BSIZE; break; case DIOCGMEDIASIZE: *(off_t *)data = dev->spa_len; break; default: error = ENOTTY; break; } return (error); } static int nvdimm_spa_mmap_single(struct cdev *cdev, vm_ooffset_t *offset, vm_size_t size, vm_object_t *objp, int nprot) { struct nvdimm_spa_dev *dev; dev = cdev->si_drv1; if (dev->spa_obj == NULL) return (ENXIO); if (*offset >= dev->spa_len || *offset + size < *offset || *offset + size > dev->spa_len) return (EINVAL); vm_object_reference(dev->spa_obj); *objp = dev->spa_obj; return (0); } static struct cdevsw spa_cdevsw = { .d_version = D_VERSION, .d_flags = D_DISK, .d_name = "nvdimm_spa", .d_read = nvdimm_spa_rw, .d_write = nvdimm_spa_rw, .d_ioctl = nvdimm_spa_ioctl, .d_mmap_single = nvdimm_spa_mmap_single, }; static void nvdimm_spa_g_all_unmapped(struct nvdimm_spa_dev *dev, struct bio *bp, int rw) { struct vm_page maa[bp->bio_ma_n]; vm_page_t ma[bp->bio_ma_n]; vm_memattr_t mattr; int i; mattr = dev->spa_memattr; for (i = 0; i < nitems(ma); i++) { bzero(&maa[i], sizeof(maa[i])); vm_page_initfake(&maa[i], dev->spa_phys_base + trunc_page(bp->bio_offset) + PAGE_SIZE * i, mattr); ma[i] = &maa[i]; } if (rw == BIO_READ) pmap_copy_pages(ma, bp->bio_offset & PAGE_MASK, bp->bio_ma, bp->bio_ma_offset, bp->bio_length); else pmap_copy_pages(bp->bio_ma, bp->bio_ma_offset, ma, bp->bio_offset & PAGE_MASK, bp->bio_length); } static void nvdimm_spa_g_thread(void *arg) { struct g_spa *sc; struct bio *bp; struct uio auio; struct iovec aiovec; int error; sc = arg; for (;;) { mtx_lock(&sc->spa_g_mtx); for (;;) { bp = bioq_takefirst(&sc->spa_g_queue); if (bp != NULL) break; msleep(&sc->spa_g_queue, &sc->spa_g_mtx, PRIBIO, "spa_g", 0); if (!sc->spa_g_proc_run) { sc->spa_g_proc_exiting = true; wakeup(&sc->spa_g_queue); mtx_unlock(&sc->spa_g_mtx); kproc_exit(0); } continue; } mtx_unlock(&sc->spa_g_mtx); if (bp->bio_cmd != BIO_READ && bp->bio_cmd != BIO_WRITE && bp->bio_cmd != BIO_FLUSH) { error = EOPNOTSUPP; goto completed; } error = 0; if (bp->bio_cmd == BIO_FLUSH) { if (sc->dev->spa_kva != NULL) { pmap_large_map_wb(sc->dev->spa_kva, sc->dev->spa_len); } else { pmap_flush_cache_phys_range( (vm_paddr_t)sc->dev->spa_phys_base, (vm_paddr_t)sc->dev->spa_phys_base + sc->dev->spa_len, sc->dev->spa_memattr); } /* * XXX flush IMC */ goto completed; } if ((bp->bio_flags & BIO_UNMAPPED) != 0) { if (sc->dev->spa_kva != NULL) { aiovec.iov_base = (char *)sc->dev->spa_kva + bp->bio_offset; aiovec.iov_len = bp->bio_length; auio.uio_iov = &aiovec; auio.uio_iovcnt = 1; auio.uio_resid = bp->bio_length; auio.uio_offset = bp->bio_offset; auio.uio_segflg = UIO_SYSSPACE; auio.uio_rw = bp->bio_cmd == BIO_READ ? UIO_WRITE : UIO_READ; auio.uio_td = curthread; error = uiomove_fromphys(bp->bio_ma, bp->bio_ma_offset, bp->bio_length, &auio); bp->bio_resid = auio.uio_resid; } else { nvdimm_spa_g_all_unmapped(sc->dev, bp, bp->bio_cmd); bp->bio_resid = bp->bio_length; error = 0; } } else { aiovec.iov_base = bp->bio_data; aiovec.iov_len = bp->bio_length; auio.uio_iov = &aiovec; auio.uio_iovcnt = 1; auio.uio_resid = bp->bio_length; auio.uio_offset = bp->bio_offset; auio.uio_segflg = UIO_SYSSPACE; auio.uio_rw = bp->bio_cmd == BIO_READ ? UIO_READ : UIO_WRITE; auio.uio_td = curthread; error = nvdimm_spa_uio(sc->dev, &auio); bp->bio_resid = auio.uio_resid; } bp->bio_bcount = bp->bio_length; devstat_end_transaction_bio(sc->spa_g_devstat, bp); completed: bp->bio_completed = bp->bio_length; g_io_deliver(bp, error); } } static void nvdimm_spa_g_start(struct bio *bp) { struct g_spa *sc; sc = bp->bio_to->geom->softc; if (bp->bio_cmd == BIO_READ || bp->bio_cmd == BIO_WRITE) { mtx_lock(&sc->spa_g_stat_mtx); devstat_start_transaction_bio(sc->spa_g_devstat, bp); mtx_unlock(&sc->spa_g_stat_mtx); } mtx_lock(&sc->spa_g_mtx); bioq_disksort(&sc->spa_g_queue, bp); wakeup(&sc->spa_g_queue); mtx_unlock(&sc->spa_g_mtx); } static int nvdimm_spa_g_access(struct g_provider *pp, int r, int w, int e) { return (0); } static struct g_geom * nvdimm_spa_g_create(struct nvdimm_spa_dev *dev, const char *name); static g_ctl_destroy_geom_t nvdimm_spa_g_destroy_geom; struct g_class nvdimm_spa_g_class = { .name = "SPA", .version = G_VERSION, .start = nvdimm_spa_g_start, .access = nvdimm_spa_g_access, .destroy_geom = nvdimm_spa_g_destroy_geom, }; DECLARE_GEOM_CLASS(nvdimm_spa_g_class, g_spa); int nvdimm_spa_init(struct SPA_mapping *spa, ACPI_NFIT_SYSTEM_ADDRESS *nfitaddr, enum SPA_mapping_type spa_type) { char *name; int error; spa->spa_type = spa_type; spa->spa_nfit_idx = nfitaddr->RangeIndex; spa->dev.spa_domain = ((nfitaddr->Flags & ACPI_NFIT_PROXIMITY_VALID) != 0) ? nfitaddr->ProximityDomain : -1; spa->dev.spa_phys_base = nfitaddr->Address; spa->dev.spa_len = nfitaddr->Length; spa->dev.spa_efi_mem_flags = nfitaddr->MemoryMapping; if (bootverbose) { printf("NVDIMM SPA%d base %#016jx len %#016jx %s fl %#jx\n", spa->spa_nfit_idx, (uintmax_t)spa->dev.spa_phys_base, (uintmax_t)spa->dev.spa_len, nvdimm_SPA_uuid_list[spa_type].u_name, spa->dev.spa_efi_mem_flags); } spa->dev.spa_memattr = nvdimm_spa_memattr(nfitaddr->MemoryMapping); if (!nvdimm_SPA_uuid_list[spa_type].u_usr_acc) return (0); asprintf(&name, M_NVDIMM, "spa%d", spa->spa_nfit_idx); error = nvdimm_spa_dev_init(&spa->dev, name, spa->spa_nfit_idx); free(name, M_NVDIMM); return (error); } int nvdimm_spa_dev_init(struct nvdimm_spa_dev *dev, const char *name, int unit) { struct make_dev_args mda; struct sglist *spa_sg; char *devname; int error, error1; error1 = pmap_large_map(dev->spa_phys_base, dev->spa_len, &dev->spa_kva, dev->spa_memattr); if (error1 != 0) { printf("NVDIMM %s cannot map into KVA, error %d\n", name, error1); dev->spa_kva = NULL; } spa_sg = sglist_alloc(1, M_WAITOK); error = sglist_append_phys(spa_sg, dev->spa_phys_base, dev->spa_len); if (error == 0) { dev->spa_obj = vm_pager_allocate(OBJT_SG, spa_sg, dev->spa_len, VM_PROT_ALL, 0, NULL); if (dev->spa_obj == NULL) { printf("NVDIMM %s failed to alloc vm object", name); sglist_free(spa_sg); } } else { printf("NVDIMM %s failed to init sglist, error %d", name, error); sglist_free(spa_sg); } make_dev_args_init(&mda); mda.mda_flags = MAKEDEV_WAITOK | MAKEDEV_CHECKNAME; mda.mda_devsw = &spa_cdevsw; mda.mda_cr = NULL; mda.mda_uid = UID_ROOT; mda.mda_gid = GID_OPERATOR; mda.mda_mode = 0660; mda.mda_si_drv1 = dev; mda.mda_unit = unit; asprintf(&devname, M_NVDIMM, "nvdimm_%s", name); error = make_dev_s(&mda, &dev->spa_dev, "%s", devname); free(devname, M_NVDIMM); if (error != 0) { printf("NVDIMM %s cannot create devfs node, error %d\n", name, error); if (error1 == 0) error1 = error; } dev->spa_g = nvdimm_spa_g_create(dev, name); if (dev->spa_g == NULL && error1 == 0) error1 = ENXIO; return (error1); } static struct g_geom * nvdimm_spa_g_create(struct nvdimm_spa_dev *dev, const char *name) { struct g_geom *gp; struct g_spa *sc; int error; gp = NULL; sc = malloc(sizeof(struct g_spa), M_NVDIMM, M_WAITOK | M_ZERO); sc->dev = dev; bioq_init(&sc->spa_g_queue); mtx_init(&sc->spa_g_mtx, "spag", NULL, MTX_DEF); mtx_init(&sc->spa_g_stat_mtx, "spagst", NULL, MTX_DEF); sc->spa_g_proc_run = true; sc->spa_g_proc_exiting = false; error = kproc_create(nvdimm_spa_g_thread, sc, &sc->spa_g_proc, 0, 0, "g_spa"); if (error != 0) { mtx_destroy(&sc->spa_g_mtx); mtx_destroy(&sc->spa_g_stat_mtx); free(sc, M_NVDIMM); printf("NVDIMM %s cannot create geom worker, error %d\n", name, error); } else { g_topology_lock(); gp = g_new_geomf(&nvdimm_spa_g_class, "%s", name); gp->softc = sc; sc->spa_p = g_new_providerf(gp, "%s", name); sc->spa_p->mediasize = dev->spa_len; sc->spa_p->sectorsize = DEV_BSIZE; sc->spa_p->flags |= G_PF_DIRECT_SEND | G_PF_DIRECT_RECEIVE | G_PF_ACCEPT_UNMAPPED; g_error_provider(sc->spa_p, 0); sc->spa_g_devstat = devstat_new_entry("spa", -1, DEV_BSIZE, DEVSTAT_ALL_SUPPORTED, DEVSTAT_TYPE_DIRECT, DEVSTAT_PRIORITY_MAX); g_topology_unlock(); } return (gp); } void nvdimm_spa_fini(struct SPA_mapping *spa) { nvdimm_spa_dev_fini(&spa->dev); } void nvdimm_spa_dev_fini(struct nvdimm_spa_dev *dev) { if (dev->spa_g != NULL) { g_topology_lock(); nvdimm_spa_g_destroy_geom(NULL, dev->spa_g->class, dev->spa_g); g_topology_unlock(); } if (dev->spa_dev != NULL) { destroy_dev(dev->spa_dev); dev->spa_dev = NULL; } vm_object_deallocate(dev->spa_obj); if (dev->spa_kva != NULL) { pmap_large_unmap(dev->spa_kva, dev->spa_len); dev->spa_kva = NULL; } } static int nvdimm_spa_g_destroy_geom(struct gctl_req *req, struct g_class *cp, struct g_geom *gp) { struct g_spa *sc; sc = gp->softc; mtx_lock(&sc->spa_g_mtx); sc->spa_g_proc_run = false; wakeup(&sc->spa_g_queue); while (!sc->spa_g_proc_exiting) msleep(&sc->spa_g_queue, &sc->spa_g_mtx, PRIBIO, "spa_e", 0); mtx_unlock(&sc->spa_g_mtx); g_topology_assert(); g_wither_geom(gp, ENXIO); sc->spa_p = NULL; if (sc->spa_g_devstat != NULL) { devstat_remove_entry(sc->spa_g_devstat); sc->spa_g_devstat = NULL; } mtx_destroy(&sc->spa_g_mtx); mtx_destroy(&sc->spa_g_stat_mtx); free(sc, M_NVDIMM); return (0); } Index: head/sys/dev/nvdimm/nvdimm_var.h =================================================================== --- head/sys/dev/nvdimm/nvdimm_var.h (revision 354644) +++ head/sys/dev/nvdimm/nvdimm_var.h (revision 354645) @@ -1,178 +1,179 @@ /*- * Copyright (c) 2017 The FreeBSD Foundation * All rights reserved. * Copyright (c) 2018, 2019 Intel Corporation * * This software was developed by Konstantin Belousov * under sponsorship from the FreeBSD Foundation. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #ifndef __DEV_NVDIMM_VAR_H__ #define __DEV_NVDIMM_VAR_H__ #define NVDIMM_INDEX_BLOCK_SIGNATURE "NAMESPACE_INDEX" struct nvdimm_label_index { char signature[16]; uint8_t flags[3]; uint8_t label_size; uint32_t seq; uint64_t this_offset; uint64_t this_size; uint64_t other_offset; uint64_t label_offset; uint32_t slot_cnt; uint16_t rev_major; uint16_t rev_minor; uint64_t checksum; uint8_t free[0]; }; struct nvdimm_label { struct uuid uuid; char name[64]; uint32_t flags; uint16_t nlabel; uint16_t position; uint64_t set_cookie; uint64_t lba_size; uint64_t dimm_phys_addr; uint64_t raw_size; uint32_t slot; uint8_t alignment; uint8_t reserved[3]; struct uuid type_guid; struct uuid address_abstraction_guid; uint8_t reserved1[88]; uint64_t checksum; }; struct nvdimm_label_entry { SLIST_ENTRY(nvdimm_label_entry) link; struct nvdimm_label label; }; _Static_assert(sizeof(struct nvdimm_label_index) == 72, "Incorrect layout"); _Static_assert(sizeof(struct nvdimm_label) == 256, "Incorrect layout"); typedef uint32_t nfit_handle_t; enum nvdimm_acpi_ivar { NVDIMM_ROOT_IVAR_ACPI_HANDLE, NVDIMM_ROOT_IVAR_DEVICE_HANDLE, NVDIMM_ROOT_IVAR_MAX, }; __BUS_ACCESSOR(nvdimm_root, acpi_handle, NVDIMM_ROOT, ACPI_HANDLE, ACPI_HANDLE) __BUS_ACCESSOR(nvdimm_root, device_handle, NVDIMM_ROOT, DEVICE_HANDLE, nfit_handle_t) struct nvdimm_dev { device_t nv_dev; nfit_handle_t nv_handle; uint64_t **nv_flush_addr; int nv_flush_addr_cnt; uint32_t label_area_size; uint32_t max_label_xfer; struct nvdimm_label_index *label_index; SLIST_HEAD(, nvdimm_label_entry) labels; }; enum SPA_mapping_type { SPA_TYPE_VOLATILE_MEMORY = 0, SPA_TYPE_PERSISTENT_MEMORY = 1, SPA_TYPE_CONTROL_REGION = 2, SPA_TYPE_DATA_REGION = 3, SPA_TYPE_VOLATILE_VIRTUAL_DISK = 4, SPA_TYPE_VOLATILE_VIRTUAL_CD = 5, SPA_TYPE_PERSISTENT_VIRTUAL_DISK= 6, SPA_TYPE_PERSISTENT_VIRTUAL_CD = 7, SPA_TYPE_UNKNOWN = 127, }; struct nvdimm_spa_dev { int spa_domain; vm_memattr_t spa_memattr; uint64_t spa_phys_base; uint64_t spa_len; uint64_t spa_efi_mem_flags; void *spa_kva; struct vm_object *spa_obj; struct cdev *spa_dev; struct g_geom *spa_g; }; struct g_spa { struct nvdimm_spa_dev *dev; struct g_provider *spa_p; struct bio_queue_head spa_g_queue; struct mtx spa_g_mtx; struct mtx spa_g_stat_mtx; struct devstat *spa_g_devstat; struct proc *spa_g_proc; bool spa_g_proc_run; bool spa_g_proc_exiting; }; struct nvdimm_namespace { SLIST_ENTRY(nvdimm_namespace) link; struct SPA_mapping *spa; struct nvdimm_spa_dev dev; }; struct SPA_mapping { SLIST_ENTRY(SPA_mapping) link; enum SPA_mapping_type spa_type; int spa_nfit_idx; struct nvdimm_spa_dev dev; SLIST_HEAD(, nvdimm_namespace) namespaces; }; MALLOC_DECLARE(M_NVDIMM); void acpi_nfit_get_dimm_ids(ACPI_TABLE_NFIT *nfitbl, nfit_handle_t **listp, int *countp); void acpi_nfit_get_spa_range(ACPI_TABLE_NFIT *nfitbl, uint16_t range_index, ACPI_NFIT_SYSTEM_ADDRESS **spa); void acpi_nfit_get_spa_ranges(ACPI_TABLE_NFIT *nfitbl, ACPI_NFIT_SYSTEM_ADDRESS ***listp, int *countp); void acpi_nfit_get_region_mappings_by_spa_range(ACPI_TABLE_NFIT *nfitbl, uint16_t spa_range_index, ACPI_NFIT_MEMORY_MAP ***listp, int *countp); void acpi_nfit_get_control_region(ACPI_TABLE_NFIT *nfitbl, uint16_t control_region_index, ACPI_NFIT_CONTROL_REGION **out); void acpi_nfit_get_flush_addrs(ACPI_TABLE_NFIT *nfitbl, nfit_handle_t dimm, uint64_t ***listp, int *countp); enum SPA_mapping_type nvdimm_spa_type_from_name(const char *); enum SPA_mapping_type nvdimm_spa_type_from_uuid(struct uuid *); +bool nvdimm_spa_type_user_accessible(enum SPA_mapping_type); struct nvdimm_dev *nvdimm_find_by_handle(nfit_handle_t nv_handle); int nvdimm_spa_init(struct SPA_mapping *spa, ACPI_NFIT_SYSTEM_ADDRESS *nfitaddr, enum SPA_mapping_type spa_type); void nvdimm_spa_fini(struct SPA_mapping *spa); int nvdimm_spa_dev_init(struct nvdimm_spa_dev *dev, const char *name, int unit); void nvdimm_spa_dev_fini(struct nvdimm_spa_dev *dev); int nvdimm_create_namespaces(struct SPA_mapping *spa, ACPI_TABLE_NFIT *nfitbl); void nvdimm_destroy_namespaces(struct SPA_mapping *spa); #endif /* __DEV_NVDIMM_VAR_H__ */