/* * Copyright(c) 2013-2015 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include #include #include #include #include #include #include #include #include #include #include #include #include #include "nfit_test.h" /* * Generate an NFIT table to describe the following topology: * * BUS0: Interleaved PMEM regions, and aliasing with BLK regions * * (a) (b) DIMM BLK-REGION * +----------+--------------+----------+---------+ * +------+ | blk2.0 | pm0.0 | blk2.1 | pm1.0 | 0 region2 * | imc0 +--+- - - - - region0 - - - -+----------+ + * +--+---+ | blk3.0 | pm0.0 | blk3.1 | pm1.0 | 1 region3 * | +----------+--------------v----------v v * +--+---+ | | * | cpu0 | region1 * +--+---+ | | * | +-------------------------^----------^ ^ * +--+---+ | blk4.0 | pm1.0 | 2 region4 * | imc1 +--+-------------------------+----------+ + * +------+ | blk5.0 | pm1.0 | 3 region5 * +-------------------------+----------+-+-------+ * * +--+---+ * | cpu1 | * +--+---+ (Hotplug DIMM) * | +----------------------------------------------+ * +--+---+ | blk6.0/pm7.0 | 4 region6/7 * | imc0 +--+----------------------------------------------+ * +------+ * * * *) In this layout we have four dimms and two memory controllers in one * socket. Each unique interface (BLK or PMEM) to DPA space * is identified by a region device with a dynamically assigned id. * * *) The first portion of dimm0 and dimm1 are interleaved as REGION0. * A single PMEM namespace "pm0.0" is created using half of the * REGION0 SPA-range. REGION0 spans dimm0 and dimm1. PMEM namespace * allocate from from the bottom of a region. The unallocated * portion of REGION0 aliases with REGION2 and REGION3. That * unallacted capacity is reclaimed as BLK namespaces ("blk2.0" and * "blk3.0") starting at the base of each DIMM to offset (a) in those * DIMMs. "pm0.0", "blk2.0" and "blk3.0" are free-form readable * names that can be assigned to a namespace. * * *) In the last portion of dimm0 and dimm1 we have an interleaved * SPA range, REGION1, that spans those two dimms as well as dimm2 * and dimm3. Some of REGION1 allocated to a PMEM namespace named * "pm1.0" the rest is reclaimed in 4 BLK namespaces (for each * dimm in the interleave set), "blk2.1", "blk3.1", "blk4.0", and * "blk5.0". * * *) The portion of dimm2 and dimm3 that do not participate in the * REGION1 interleaved SPA range (i.e. the DPA address below offset * (b) are also included in the "blk4.0" and "blk5.0" namespaces. * Note, that BLK namespaces need not be contiguous in DPA-space, and * can consume aliased capacity from multiple interleave sets. * * BUS1: Legacy NVDIMM (single contiguous range) * * region2 * +---------------------+ * |---------------------| * || pm2.0 || * |---------------------| * +---------------------+ * * *) A NFIT-table may describe a simple system-physical-address range * with no BLK aliasing. This type of region may optionally * reference an NVDIMM. */ enum { NUM_PM = 3, NUM_DCR = 5, NUM_HINTS = 8, NUM_BDW = NUM_DCR, NUM_SPA = NUM_PM + NUM_DCR + NUM_BDW, NUM_MEM = NUM_DCR + NUM_BDW + 2 /* spa0 iset */ + 4 /* spa1 iset */, DIMM_SIZE = SZ_32M, LABEL_SIZE = SZ_128K, SPA_VCD_SIZE = SZ_4M, SPA0_SIZE = DIMM_SIZE, SPA1_SIZE = DIMM_SIZE*2, SPA2_SIZE = DIMM_SIZE, BDW_SIZE = 64 << 8, DCR_SIZE = 12, NUM_NFITS = 2, /* permit testing multiple NFITs per system */ }; struct nfit_test_dcr { __le64 bdw_addr; __le32 bdw_status; __u8 aperature[BDW_SIZE]; }; #define NFIT_DIMM_HANDLE(node, socket, imc, chan, dimm) \ (((node & 0xfff) << 16) | ((socket & 0xf) << 12) \ | ((imc & 0xf) << 8) | ((chan & 0xf) << 4) | (dimm & 0xf)) static u32 handle[NUM_DCR] = { [0] = NFIT_DIMM_HANDLE(0, 0, 0, 0, 0), [1] = NFIT_DIMM_HANDLE(0, 0, 0, 0, 1), [2] = NFIT_DIMM_HANDLE(0, 0, 1, 0, 0), [3] = NFIT_DIMM_HANDLE(0, 0, 1, 0, 1), [4] = NFIT_DIMM_HANDLE(0, 1, 0, 0, 0), }; struct nfit_test { struct acpi_nfit_desc acpi_desc; struct platform_device pdev; struct list_head resources; void *nfit_buf; dma_addr_t nfit_dma; size_t nfit_size; int num_dcr; int num_pm; void **dimm; dma_addr_t *dimm_dma; void **flush; dma_addr_t *flush_dma; void **label; dma_addr_t *label_dma; void **spa_set; dma_addr_t *spa_set_dma; struct nfit_test_dcr **dcr; dma_addr_t *dcr_dma; int (*alloc)(struct nfit_test *t); void (*setup)(struct nfit_test *t); int setup_hotplug; struct ars_state { struct nd_cmd_ars_status *ars_status; unsigned long deadline; spinlock_t lock; } ars_state; }; static struct nfit_test *to_nfit_test(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); return container_of(pdev, struct nfit_test, pdev); } static int nfit_test_cmd_get_config_size(struct nd_cmd_get_config_size *nd_cmd, unsigned int buf_len) { if (buf_len < sizeof(*nd_cmd)) return -EINVAL; nd_cmd->status = 0; nd_cmd->config_size = LABEL_SIZE; nd_cmd->max_xfer = SZ_4K; return 0; } static int nfit_test_cmd_get_config_data(struct nd_cmd_get_config_data_hdr *nd_cmd, unsigned int buf_len, void *label) { unsigned int len, offset = nd_cmd->in_offset; int rc; if (buf_len < sizeof(*nd_cmd)) return -EINVAL; if (offset >= LABEL_SIZE) return -EINVAL; if (nd_cmd->in_length + sizeof(*nd_cmd) > buf_len) return -EINVAL; nd_cmd->status = 0; len = min(nd_cmd->in_length, LABEL_SIZE - offset); memcpy(nd_cmd->out_buf, label + offset, len); rc = buf_len - sizeof(*nd_cmd) - len; return rc; } static int nfit_test_cmd_set_config_data(struct nd_cmd_set_config_hdr *nd_cmd, unsigned int buf_len, void *label) { unsigned int len, offset = nd_cmd->in_offset; u32 *status; int rc; if (buf_len < sizeof(*nd_cmd)) return -EINVAL; if (offset >= LABEL_SIZE) return -EINVAL; if (nd_cmd->in_length + sizeof(*nd_cmd) + 4 > buf_len) return -EINVAL; status = (void *)nd_cmd + nd_cmd->in_length + sizeof(*nd_cmd); *status = 0; len = min(nd_cmd->in_length, LABEL_SIZE - offset); memcpy(label + offset, nd_cmd->in_buf, len); rc = buf_len - sizeof(*nd_cmd) - (len + 4); return rc; } #define NFIT_TEST_ARS_RECORDS 4 #define NFIT_TEST_CLEAR_ERR_UNIT 256 static int nfit_test_cmd_ars_cap(struct nd_cmd_ars_cap *nd_cmd, unsigned int buf_len) { if (buf_len < sizeof(*nd_cmd)) return -EINVAL; nd_cmd->max_ars_out = sizeof(struct nd_cmd_ars_status) + NFIT_TEST_ARS_RECORDS * sizeof(struct nd_ars_record); nd_cmd->status = (ND_ARS_PERSISTENT | ND_ARS_VOLATILE) << 16; nd_cmd->clear_err_unit = NFIT_TEST_CLEAR_ERR_UNIT; return 0; } /* * Initialize the ars_state to return an ars_result 1 second in the future with * a 4K error range in the middle of the requested address range. */ static void post_ars_status(struct ars_state *ars_state, u64 addr, u64 len) { struct nd_cmd_ars_status *ars_status; struct nd_ars_record *ars_record; ars_state->deadline = jiffies + 1*HZ; ars_status = ars_state->ars_status; ars_status->status = 0; ars_status->out_length = sizeof(struct nd_cmd_ars_status) + sizeof(struct nd_ars_record); ars_status->address = addr; ars_status->length = len; ars_status->type = ND_ARS_PERSISTENT; ars_status->num_records = 1; ars_record = &ars_status->records[0]; ars_record->handle = 0; ars_record->err_address = addr + len / 2; ars_record->length = SZ_4K; } static int nfit_test_cmd_ars_start(struct ars_state *ars_state, struct nd_cmd_ars_start *ars_start, unsigned int buf_len, int *cmd_rc) { if (buf_len < sizeof(*ars_start)) return -EINVAL; spin_lock(&ars_state->lock); if (time_before(jiffies, ars_state->deadline)) { ars_start->status = NFIT_ARS_START_BUSY; *cmd_rc = -EBUSY; } else { ars_start->status = 0; ars_start->scrub_time = 1; post_ars_status(ars_state, ars_start->address, ars_start->length); *cmd_rc = 0; } spin_unlock(&ars_state->lock); return 0; } static int nfit_test_cmd_ars_status(struct ars_state *ars_state, struct nd_cmd_ars_status *ars_status, unsigned int buf_len, int *cmd_rc) { if (buf_len < ars_state->ars_status->out_length) return -EINVAL; spin_lock(&ars_state->lock); if (time_before(jiffies, ars_state->deadline)) { memset(ars_status, 0, buf_len); ars_status->status = NFIT_ARS_STATUS_BUSY; ars_status->out_length = sizeof(*ars_status); *cmd_rc = -EBUSY; } else { memcpy(ars_status, ars_state->ars_status, ars_state->ars_status->out_length); *cmd_rc = 0; } spin_unlock(&ars_state->lock); return 0; } static int nfit_test_cmd_clear_error(struct nd_cmd_clear_error *clear_err, unsigned int buf_len, int *cmd_rc) { const u64 mask = NFIT_TEST_CLEAR_ERR_UNIT - 1; if (buf_len < sizeof(*clear_err)) return -EINVAL; if ((clear_err->address & mask) || (clear_err->length & mask)) return -EINVAL; /* * Report 'all clear' success for all commands even though a new * scrub will find errors again. This is enough to have the * error removed from the 'badblocks' tracking in the pmem * driver. */ clear_err->status = 0; clear_err->cleared = clear_err->length; *cmd_rc = 0; return 0; } static int nfit_test_cmd_smart(struct nd_cmd_smart *smart, unsigned int buf_len) { static const struct nd_smart_payload smart_data = { .flags = ND_SMART_HEALTH_VALID | ND_SMART_TEMP_VALID | ND_SMART_SPARES_VALID | ND_SMART_ALARM_VALID | ND_SMART_USED_VALID | ND_SMART_SHUTDOWN_VALID, .health = ND_SMART_NON_CRITICAL_HEALTH, .temperature = 23 * 16, .spares = 75, .alarm_flags = ND_SMART_SPARE_TRIP | ND_SMART_TEMP_TRIP, .life_used = 5, .shutdown_state = 0, .vendor_size = 0, }; if (buf_len < sizeof(*smart)) return -EINVAL; memcpy(smart->data, &smart_data, sizeof(smart_data)); return 0; } static int nfit_test_cmd_smart_threshold(struct nd_cmd_smart_threshold *smart_t, unsigned int buf_len) { static const struct nd_smart_threshold_payload smart_t_data = { .alarm_control = ND_SMART_SPARE_TRIP | ND_SMART_TEMP_TRIP, .temperature = 40 * 16, .spares = 5, }; if (buf_len < sizeof(*smart_t)) return -EINVAL; memcpy(smart_t->data, &smart_t_data, sizeof(smart_t_data)); return 0; } static int nfit_test_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm, unsigned int cmd, void *buf, unsigned int buf_len, int *cmd_rc) { struct acpi_nfit_desc *acpi_desc = to_acpi_desc(nd_desc); struct nfit_test *t = container_of(acpi_desc, typeof(*t), acpi_desc); unsigned int func = cmd; int i, rc = 0, __cmd_rc; if (!cmd_rc) cmd_rc = &__cmd_rc; *cmd_rc = 0; if (nvdimm) { struct nfit_mem *nfit_mem = nvdimm_provider_data(nvdimm); unsigned long cmd_mask = nvdimm_cmd_mask(nvdimm); if (!nfit_mem) return -ENOTTY; if (cmd == ND_CMD_CALL) { struct nd_cmd_pkg *call_pkg = buf; buf_len = call_pkg->nd_size_in + call_pkg->nd_size_out; buf = (void *) call_pkg->nd_payload; func = call_pkg->nd_command; if (call_pkg->nd_family != nfit_mem->family) return -ENOTTY; } if (!test_bit(cmd, &cmd_mask) || !test_bit(func, &nfit_mem->dsm_mask)) return -ENOTTY; /* lookup label space for the given dimm */ for (i = 0; i < ARRAY_SIZE(handle); i++) if (__to_nfit_memdev(nfit_mem)->device_handle == handle[i]) break; if (i >= ARRAY_SIZE(handle)) return -ENXIO; switch (func) { case ND_CMD_GET_CONFIG_SIZE: rc = nfit_test_cmd_get_config_size(buf, buf_len); break; case ND_CMD_GET_CONFIG_DATA: rc = nfit_test_cmd_get_config_data(buf, buf_len, t->label[i]); break; case ND_CMD_SET_CONFIG_DATA: rc = nfit_test_cmd_set_config_data(buf, buf_len, t->label[i]); break; case ND_CMD_SMART: rc = nfit_test_cmd_smart(buf, buf_len); break; case ND_CMD_SMART_THRESHOLD: rc = nfit_test_cmd_smart_threshold(buf, buf_len); break; default: return -ENOTTY; } } else { struct ars_state *ars_state = &t->ars_state; if (!nd_desc || !test_bit(cmd, &nd_desc->cmd_mask)) return -ENOTTY; switch (func) { case ND_CMD_ARS_CAP: rc = nfit_test_cmd_ars_cap(buf, buf_len); break; case ND_CMD_ARS_START: rc = nfit_test_cmd_ars_start(ars_state, buf, buf_len, cmd_rc); break; case ND_CMD_ARS_STATUS: rc = nfit_test_cmd_ars_status(ars_state, buf, buf_len, cmd_rc); break; case ND_CMD_CLEAR_ERROR: rc = nfit_test_cmd_clear_error(buf, buf_len, cmd_rc); break; default: return -ENOTTY; } } return rc; } static DEFINE_SPINLOCK(nfit_test_lock); static struct nfit_test *instances[NUM_NFITS]; static void release_nfit_res(void *data) { struct nfit_test_resource *nfit_res = data; struct resource *res = nfit_res->res; spin_lock(&nfit_test_lock); list_del(&nfit_res->list); spin_unlock(&nfit_test_lock); vfree(nfit_res->buf); kfree(res); kfree(nfit_res); } static void *__test_alloc(struct nfit_test *t, size_t size, dma_addr_t *dma, void *buf) { struct device *dev = &t->pdev.dev; struct resource *res = kzalloc(sizeof(*res) * 2, GFP_KERNEL); struct nfit_test_resource *nfit_res = kzalloc(sizeof(*nfit_res), GFP_KERNEL); int rc; if (!res || !buf || !nfit_res) goto err; rc = devm_add_action(dev, release_nfit_res, nfit_res); if (rc) goto err; INIT_LIST_HEAD(&nfit_res->list); memset(buf, 0, size); nfit_res->dev = dev; nfit_res->buf = buf; nfit_res->res = res; res->start = *dma; res->end = *dma + size - 1; res->name = "NFIT"; spin_lock(&nfit_test_lock); list_add(&nfit_res->list, &t->resources); spin_unlock(&nfit_test_lock); return nfit_res->buf; err: if (buf) vfree(buf); kfree(res); kfree(nfit_res); return NULL; } static void *test_alloc(struct nfit_test *t, size_t size, dma_addr_t *dma) { void *buf = vmalloc(size); *dma = (unsigned long) buf; return __test_alloc(t, size, dma, buf); } static struct nfit_test_resource *nfit_test_lookup(resource_size_t addr) { int i; for (i = 0; i < ARRAY_SIZE(instances); i++) { struct nfit_test_resource *n, *nfit_res = NULL; struct nfit_test *t = instances[i]; if (!t) continue; spin_lock(&nfit_test_lock); list_for_each_entry(n, &t->resources, list) { if (addr >= n->res->start && (addr < n->res->start + resource_size(n->res))) { nfit_res = n; break; } else if (addr >= (unsigned long) n->buf && (addr < (unsigned long) n->buf + resource_size(n->res))) { nfit_res = n; break; } } spin_unlock(&nfit_test_lock); if (nfit_res) return nfit_res; } return NULL; } static int ars_state_init(struct device *dev, struct ars_state *ars_state) { ars_state->ars_status = devm_kzalloc(dev, sizeof(struct nd_cmd_ars_status) + sizeof(struct nd_ars_record) * NFIT_TEST_ARS_RECORDS, GFP_KERNEL); if (!ars_state->ars_status) return -ENOMEM; spin_lock_init(&ars_state->lock); return 0; } static int nfit_test0_alloc(struct nfit_test *t) { size_t nfit_size = sizeof(struct acpi_nfit_system_address) * NUM_SPA + sizeof(struct acpi_nfit_memory_map) * NUM_MEM + sizeof(struct acpi_nfit_control_region) * NUM_DCR + offsetof(struct acpi_nfit_control_region, window_size) * NUM_DCR + sizeof(struct acpi_nfit_data_region) * NUM_BDW + (sizeof(struct acpi_nfit_flush_address) + sizeof(u64) * NUM_HINTS) * NUM_DCR; int i; t->nfit_buf = test_alloc(t, nfit_size, &t->nfit_dma); if (!t->nfit_buf) return -ENOMEM; t->nfit_size = nfit_size; t->spa_set[0] = test_alloc(t, SPA0_SIZE, &t->spa_set_dma[0]); if (!t->spa_set[0]) return -ENOMEM; t->spa_set[1] = test_alloc(t, SPA1_SIZE, &t->spa_set_dma[1]); if (!t->spa_set[1]) return -ENOMEM; t->spa_set[2] = test_alloc(t, SPA0_SIZE, &t->spa_set_dma[2]); if (!t->spa_set[2]) return -ENOMEM; for (i = 0; i < NUM_DCR; i++) { t->dimm[i] = test_alloc(t, DIMM_SIZE, &t->dimm_dma[i]); if (!t->dimm[i]) return -ENOMEM; t->label[i] = test_alloc(t, LABEL_SIZE, &t->label_dma[i]); if (!t->label[i]) return -ENOMEM; sprintf(t->label[i], "label%d", i); t->flush[i] = test_alloc(t, sizeof(u64) * NUM_HINTS, &t->flush_dma[i]); if (!t->flush[i]) return -ENOMEM; } for (i = 0; i < NUM_DCR; i++) { t->dcr[i] = test_alloc(t, LABEL_SIZE, &t->dcr_dma[i]); if (!t->dcr[i]) return -ENOMEM; } return ars_state_init(&t->pdev.dev, &t->ars_state); } static int nfit_test1_alloc(struct nfit_test *t) { size_t nfit_size = sizeof(struct acpi_nfit_system_address) * 2 + sizeof(struct acpi_nfit_memory_map) + offsetof(struct acpi_nfit_control_region, window_size); t->nfit_buf = test_alloc(t, nfit_size, &t->nfit_dma); if (!t->nfit_buf) return -ENOMEM; t->nfit_size = nfit_size; t->spa_set[0] = test_alloc(t, SPA2_SIZE, &t->spa_set_dma[0]); if (!t->spa_set[0]) return -ENOMEM; t->spa_set[1] = test_alloc(t, SPA_VCD_SIZE, &t->spa_set_dma[1]); if (!t->spa_set[1]) return -ENOMEM; return ars_state_init(&t->pdev.dev, &t->ars_state); } static void nfit_test0_setup(struct nfit_test *t) { const int flush_hint_size = sizeof(struct acpi_nfit_flush_address) + (sizeof(u64) * NUM_HINTS); struct acpi_nfit_desc *acpi_desc; struct acpi_nfit_memory_map *memdev; void *nfit_buf = t->nfit_buf; struct acpi_nfit_system_address *spa; struct acpi_nfit_control_region *dcr; struct acpi_nfit_data_region *bdw; struct acpi_nfit_flush_address *flush; unsigned int offset, i; /* * spa0 (interleave first half of dimm0 and dimm1, note storage * does not actually alias the related block-data-window * regions) */ spa = nfit_buf; spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_PM), 16); spa->range_index = 0+1; spa->address = t->spa_set_dma[0]; spa->length = SPA0_SIZE; /* * spa1 (interleave last half of the 4 DIMMS, note storage * does not actually alias the related block-data-window * regions) */ spa = nfit_buf + sizeof(*spa); spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_PM), 16); spa->range_index = 1+1; spa->address = t->spa_set_dma[1]; spa->length = SPA1_SIZE; /* spa2 (dcr0) dimm0 */ spa = nfit_buf + sizeof(*spa) * 2; spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16); spa->range_index = 2+1; spa->address = t->dcr_dma[0]; spa->length = DCR_SIZE; /* spa3 (dcr1) dimm1 */ spa = nfit_buf + sizeof(*spa) * 3; spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16); spa->range_index = 3+1; spa->address = t->dcr_dma[1]; spa->length = DCR_SIZE; /* spa4 (dcr2) dimm2 */ spa = nfit_buf + sizeof(*spa) * 4; spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16); spa->range_index = 4+1; spa->address = t->dcr_dma[2]; spa->length = DCR_SIZE; /* spa5 (dcr3) dimm3 */ spa = nfit_buf + sizeof(*spa) * 5; spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16); spa->range_index = 5+1; spa->address = t->dcr_dma[3]; spa->length = DCR_SIZE; /* spa6 (bdw for dcr0) dimm0 */ spa = nfit_buf + sizeof(*spa) * 6; spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16); spa->range_index = 6+1; spa->address = t->dimm_dma[0]; spa->length = DIMM_SIZE; /* spa7 (bdw for dcr1) dimm1 */ spa = nfit_buf + sizeof(*spa) * 7; spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16); spa->range_index = 7+1; spa->address = t->dimm_dma[1]; spa->length = DIMM_SIZE; /* spa8 (bdw for dcr2) dimm2 */ spa = nfit_buf + sizeof(*spa) * 8; spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16); spa->range_index = 8+1; spa->address = t->dimm_dma[2]; spa->length = DIMM_SIZE; /* spa9 (bdw for dcr3) dimm3 */ spa = nfit_buf + sizeof(*spa) * 9; spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16); spa->range_index = 9+1; spa->address = t->dimm_dma[3]; spa->length = DIMM_SIZE; offset = sizeof(*spa) * 10; /* mem-region0 (spa0, dimm0) */ memdev = nfit_buf + offset; memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; memdev->header.length = sizeof(*memdev); memdev->device_handle = handle[0]; memdev->physical_id = 0; memdev->region_id = 0; memdev->range_index = 0+1; memdev->region_index = 4+1; memdev->region_size = SPA0_SIZE/2; memdev->region_offset = t->spa_set_dma[0]; memdev->address = 0; memdev->interleave_index = 0; memdev->interleave_ways = 2; /* mem-region1 (spa0, dimm1) */ memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map); memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; memdev->header.length = sizeof(*memdev); memdev->device_handle = handle[1]; memdev->physical_id = 1; memdev->region_id = 0; memdev->range_index = 0+1; memdev->region_index = 5+1; memdev->region_size = SPA0_SIZE/2; memdev->region_offset = t->spa_set_dma[0] + SPA0_SIZE/2; memdev->address = 0; memdev->interleave_index = 0; memdev->interleave_ways = 2; /* mem-region2 (spa1, dimm0) */ memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 2; memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; memdev->header.length = sizeof(*memdev); memdev->device_handle = handle[0]; memdev->physical_id = 0; memdev->region_id = 1; memdev->range_index = 1+1; memdev->region_index = 4+1; memdev->region_size = SPA1_SIZE/4; memdev->region_offset = t->spa_set_dma[1]; memdev->address = SPA0_SIZE/2; memdev->interleave_index = 0; memdev->interleave_ways = 4; /* mem-region3 (spa1, dimm1) */ memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 3; memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; memdev->header.length = sizeof(*memdev); memdev->device_handle = handle[1]; memdev->physical_id = 1; memdev->region_id = 1; memdev->range_index = 1+1; memdev->region_index = 5+1; memdev->region_size = SPA1_SIZE/4; memdev->region_offset = t->spa_set_dma[1] + SPA1_SIZE/4; memdev->address = SPA0_SIZE/2; memdev->interleave_index = 0; memdev->interleave_ways = 4; /* mem-region4 (spa1, dimm2) */ memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 4; memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; memdev->header.length = sizeof(*memdev); memdev->device_handle = handle[2]; memdev->physical_id = 2; memdev->region_id = 0; memdev->range_index = 1+1; memdev->region_index = 6+1; memdev->region_size = SPA1_SIZE/4; memdev->region_offset = t->spa_set_dma[1] + 2*SPA1_SIZE/4; memdev->address = SPA0_SIZE/2; memdev->interleave_index = 0; memdev->interleave_ways = 4; /* mem-region5 (spa1, dimm3) */ memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 5; memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; memdev->header.length = sizeof(*memdev); memdev->device_handle = handle[3]; memdev->physical_id = 3; memdev->region_id = 0; memdev->range_index = 1+1; memdev->region_index = 7+1; memdev->region_size = SPA1_SIZE/4; memdev->region_offset = t->spa_set_dma[1] + 3*SPA1_SIZE/4; memdev->address = SPA0_SIZE/2; memdev->interleave_index = 0; memdev->interleave_ways = 4; /* mem-region6 (spa/dcr0, dimm0) */ memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 6; memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; memdev->header.length = sizeof(*memdev); memdev->device_handle = handle[0]; memdev->physical_id = 0; memdev->region_id = 0; memdev->range_index = 2+1; memdev->region_index = 0+1; memdev->region_size = 0; memdev->region_offset = 0; memdev->address = 0; memdev->interleave_index = 0; memdev->interleave_ways = 1; /* mem-region7 (spa/dcr1, dimm1) */ memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 7; memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; memdev->header.length = sizeof(*memdev); memdev->device_handle = handle[1]; memdev->physical_id = 1; memdev->region_id = 0; memdev->range_index = 3+1; memdev->region_index = 1+1; memdev->region_size = 0; memdev->region_offset = 0; memdev->address = 0; memdev->interleave_index = 0; memdev->interleave_ways = 1; /* mem-region8 (spa/dcr2, dimm2) */ memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 8; memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; memdev->header.length = sizeof(*memdev); memdev->device_handle = handle[2]; memdev->physical_id = 2; memdev->region_id = 0; memdev->range_index = 4+1; memdev->region_index = 2+1; memdev->region_size = 0; memdev->region_offset = 0; memdev->address = 0; memdev->interleave_index = 0; memdev->interleave_ways = 1; /* mem-region9 (spa/dcr3, dimm3) */ memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 9; memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; memdev->header.length = sizeof(*memdev); memdev->device_handle = handle[3]; memdev->physical_id = 3; memdev->region_id = 0; memdev->range_index = 5+1; memdev->region_index = 3+1; memdev->region_size = 0; memdev->region_offset = 0; memdev->address = 0; memdev->interleave_index = 0; memdev->interleave_ways = 1; /* mem-region10 (spa/bdw0, dimm0) */ memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 10; memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; memdev->header.length = sizeof(*memdev); memdev->device_handle = handle[0]; memdev->physical_id = 0; memdev->region_id = 0; memdev->range_index = 6+1; memdev->region_index = 0+1; memdev->region_size = 0; memdev->region_offset = 0; memdev->address = 0; memdev->interleave_index = 0; memdev->interleave_ways = 1; /* mem-region11 (spa/bdw1, dimm1) */ memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 11; memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; memdev->header.length = sizeof(*memdev); memdev->device_handle = handle[1]; memdev->physical_id = 1; memdev->region_id = 0; memdev->range_index = 7+1; memdev->region_index = 1+1; memdev->region_size = 0; memdev->region_offset = 0; memdev->address = 0; memdev->interleave_index = 0; memdev->interleave_ways = 1; /* mem-region12 (spa/bdw2, dimm2) */ memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 12; memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; memdev->header.length = sizeof(*memdev); memdev->device_handle = handle[2]; memdev->physical_id = 2; memdev->region_id = 0; memdev->range_index = 8+1; memdev->region_index = 2+1; memdev->region_size = 0; memdev->region_offset = 0; memdev->address = 0; memdev->interleave_index = 0; memdev->interleave_ways = 1; /* mem-region13 (spa/dcr3, dimm3) */ memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 13; memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; memdev->header.length = sizeof(*memdev); memdev->device_handle = handle[3]; memdev->physical_id = 3; memdev->region_id = 0; memdev->range_index = 9+1; memdev->region_index = 3+1; memdev->region_size = 0; memdev->region_offset = 0; memdev->address = 0; memdev->interleave_index = 0; memdev->interleave_ways = 1; offset = offset + sizeof(struct acpi_nfit_memory_map) * 14; /* dcr-descriptor0: blk */ dcr = nfit_buf + offset; dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION; dcr->header.length = sizeof(struct acpi_nfit_control_region); dcr->region_index = 0+1; dcr->vendor_id = 0xabcd; dcr->device_id = 0; dcr->revision_id = 1; dcr->serial_number = ~handle[0]; dcr->code = NFIT_FIC_BLK; dcr->windows = 1; dcr->window_size = DCR_SIZE; dcr->command_offset = 0; dcr->command_size = 8; dcr->status_offset = 8; dcr->status_size = 4; /* dcr-descriptor1: blk */ dcr = nfit_buf + offset + sizeof(struct acpi_nfit_control_region); dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION; dcr->header.length = sizeof(struct acpi_nfit_control_region); dcr->region_index = 1+1; dcr->vendor_id = 0xabcd; dcr->device_id = 0; dcr->revision_id = 1; dcr->serial_number = ~handle[1]; dcr->code = NFIT_FIC_BLK; dcr->windows = 1; dcr->window_size = DCR_SIZE; dcr->command_offset = 0; dcr->command_size = 8; dcr->status_offset = 8; dcr->status_size = 4; /* dcr-descriptor2: blk */ dcr = nfit_buf + offset + sizeof(struct acpi_nfit_control_region) * 2; dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION; dcr->header.length = sizeof(struct acpi_nfit_control_region); dcr->region_index = 2+1; dcr->vendor_id = 0xabcd; dcr->device_id = 0; dcr->revision_id = 1; dcr->serial_number = ~handle[2]; dcr->code = NFIT_FIC_BLK; dcr->windows = 1; dcr->window_size = DCR_SIZE; dcr->command_offset = 0; dcr->command_size = 8; dcr->status_offset = 8; dcr->status_size = 4; /* dcr-descriptor3: blk */ dcr = nfit_buf + offset + sizeof(struct acpi_nfit_control_region) * 3; dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION; dcr->header.length = sizeof(struct acpi_nfit_control_region); dcr->region_index = 3+1; dcr->vendor_id = 0xabcd; dcr->device_id = 0; dcr->revision_id = 1; dcr->serial_number = ~handle[3]; dcr->code = NFIT_FIC_BLK; dcr->windows = 1; dcr->window_size = DCR_SIZE; dcr->command_offset = 0; dcr->command_size = 8; dcr->status_offset = 8; dcr->status_size = 4; offset = offset + sizeof(struct acpi_nfit_control_region) * 4; /* dcr-descriptor0: pmem */ dcr = nfit_buf + offset; dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION; dcr->header.length = offsetof(struct acpi_nfit_control_region, window_size); dcr->region_index = 4+1; dcr->vendor_id = 0xabcd; dcr->device_id = 0; dcr->revision_id = 1; dcr->serial_number = ~handle[0]; dcr->code = NFIT_FIC_BYTEN; dcr->windows = 0; /* dcr-descriptor1: pmem */ dcr = nfit_buf + offset + offsetof(struct acpi_nfit_control_region, window_size); dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION; dcr->header.length = offsetof(struct acpi_nfit_control_region, window_size); dcr->region_index = 5+1; dcr->vendor_id = 0xabcd; dcr->device_id = 0; dcr->revision_id = 1; dcr->serial_number = ~handle[1]; dcr->code = NFIT_FIC_BYTEN; dcr->windows = 0; /* dcr-descriptor2: pmem */ dcr = nfit_buf + offset + offsetof(struct acpi_nfit_control_region, window_size) * 2; dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION; dcr->header.length = offsetof(struct acpi_nfit_control_region, window_size); dcr->region_index = 6+1; dcr->vendor_id = 0xabcd; dcr->device_id = 0; dcr->revision_id = 1; dcr->serial_number = ~handle[2]; dcr->code = NFIT_FIC_BYTEN; dcr->windows = 0; /* dcr-descriptor3: pmem */ dcr = nfit_buf + offset + offsetof(struct acpi_nfit_control_region, window_size) * 3; dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION; dcr->header.length = offsetof(struct acpi_nfit_control_region, window_size); dcr->region_index = 7+1; dcr->vendor_id = 0xabcd; dcr->device_id = 0; dcr->revision_id = 1; dcr->serial_number = ~handle[3]; dcr->code = NFIT_FIC_BYTEN; dcr->windows = 0; offset = offset + offsetof(struct acpi_nfit_control_region, window_size) * 4; /* bdw0 (spa/dcr0, dimm0) */ bdw = nfit_buf + offset; bdw->header.type = ACPI_NFIT_TYPE_DATA_REGION; bdw->header.length = sizeof(struct acpi_nfit_data_region); bdw->region_index = 0+1; bdw->windows = 1; bdw->offset = 0; bdw->size = BDW_SIZE; bdw->capacity = DIMM_SIZE; bdw->start_address = 0; /* bdw1 (spa/dcr1, dimm1) */ bdw = nfit_buf + offset + sizeof(struct acpi_nfit_data_region); bdw->header.type = ACPI_NFIT_TYPE_DATA_REGION; bdw->header.length = sizeof(struct acpi_nfit_data_region); bdw->region_index = 1+1; bdw->windows = 1; bdw->offset = 0; bdw->size = BDW_SIZE; bdw->capacity = DIMM_SIZE; bdw->start_address = 0; /* bdw2 (spa/dcr2, dimm2) */ bdw = nfit_buf + offset + sizeof(struct acpi_nfit_data_region) * 2; bdw->header.type = ACPI_NFIT_TYPE_DATA_REGION; bdw->header.length = sizeof(struct acpi_nfit_data_region); bdw->region_index = 2+1; bdw->windows = 1; bdw->offset = 0; bdw->size = BDW_SIZE; bdw->capacity = DIMM_SIZE; bdw->start_address = 0; /* bdw3 (spa/dcr3, dimm3) */ bdw = nfit_buf + offset + sizeof(struct acpi_nfit_data_region) * 3; bdw->header.type = ACPI_NFIT_TYPE_DATA_REGION; bdw->header.length = sizeof(struct acpi_nfit_data_region); bdw->region_index = 3+1; bdw->windows = 1; bdw->offset = 0; bdw->size = BDW_SIZE; bdw->capacity = DIMM_SIZE; bdw->start_address = 0; offset = offset + sizeof(struct acpi_nfit_data_region) * 4; /* flush0 (dimm0) */ flush = nfit_buf + offset; flush->header.type = ACPI_NFIT_TYPE_FLUSH_ADDRESS; flush->header.length = flush_hint_size; flush->device_handle = handle[0]; flush->hint_count = NUM_HINTS; for (i = 0; i < NUM_HINTS; i++) flush->hint_address[i] = t->flush_dma[0] + i * sizeof(u64); /* flush1 (dimm1) */ flush = nfit_buf + offset + flush_hint_size * 1; flush->header.type = ACPI_NFIT_TYPE_FLUSH_ADDRESS; flush->header.length = flush_hint_size; flush->device_handle = handle[1]; flush->hint_count = NUM_HINTS; for (i = 0; i < NUM_HINTS; i++) flush->hint_address[i] = t->flush_dma[1] + i * sizeof(u64); /* flush2 (dimm2) */ flush = nfit_buf + offset + flush_hint_size * 2; flush->header.type = ACPI_NFIT_TYPE_FLUSH_ADDRESS; flush->header.length = flush_hint_size; flush->device_handle = handle[2]; flush->hint_count = NUM_HINTS; for (i = 0; i < NUM_HINTS; i++) flush->hint_address[i] = t->flush_dma[2] + i * sizeof(u64); /* flush3 (dimm3) */ flush = nfit_buf + offset + flush_hint_size * 3; flush->header.type = ACPI_NFIT_TYPE_FLUSH_ADDRESS; flush->header.length = flush_hint_size; flush->device_handle = handle[3]; flush->hint_count = NUM_HINTS; for (i = 0; i < NUM_HINTS; i++) flush->hint_address[i] = t->flush_dma[3] + i * sizeof(u64); if (t->setup_hotplug) { offset = offset + flush_hint_size * 4; /* dcr-descriptor4: blk */ dcr = nfit_buf + offset; dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION; dcr->header.length = sizeof(struct acpi_nfit_control_region); dcr->region_index = 8+1; dcr->vendor_id = 0xabcd; dcr->device_id = 0; dcr->revision_id = 1; dcr->serial_number = ~handle[4]; dcr->code = NFIT_FIC_BLK; dcr->windows = 1; dcr->window_size = DCR_SIZE; dcr->command_offset = 0; dcr->command_size = 8; dcr->status_offset = 8; dcr->status_size = 4; offset = offset + sizeof(struct acpi_nfit_control_region); /* dcr-descriptor4: pmem */ dcr = nfit_buf + offset; dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION; dcr->header.length = offsetof(struct acpi_nfit_control_region, window_size); dcr->region_index = 9+1; dcr->vendor_id = 0xabcd; dcr->device_id = 0; dcr->revision_id = 1; dcr->serial_number = ~handle[4]; dcr->code = NFIT_FIC_BYTEN; dcr->windows = 0; offset = offset + offsetof(struct acpi_nfit_control_region, window_size); /* bdw4 (spa/dcr4, dimm4) */ bdw = nfit_buf + offset; bdw->header.type = ACPI_NFIT_TYPE_DATA_REGION; bdw->header.length = sizeof(struct acpi_nfit_data_region); bdw->region_index = 8+1; bdw->windows = 1; bdw->offset = 0; bdw->size = BDW_SIZE; bdw->capacity = DIMM_SIZE; bdw->start_address = 0; offset = offset + sizeof(struct acpi_nfit_data_region); /* spa10 (dcr4) dimm4 */ spa = nfit_buf + offset; spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16); spa->range_index = 10+1; spa->address = t->dcr_dma[4]; spa->length = DCR_SIZE; /* * spa11 (single-dimm interleave for hotplug, note storage * does not actually alias the related block-data-window * regions) */ spa = nfit_buf + offset + sizeof(*spa); spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_PM), 16); spa->range_index = 11+1; spa->address = t->spa_set_dma[2]; spa->length = SPA0_SIZE; /* spa12 (bdw for dcr4) dimm4 */ spa = nfit_buf + offset + sizeof(*spa) * 2; spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16); spa->range_index = 12+1; spa->address = t->dimm_dma[4]; spa->length = DIMM_SIZE; offset = offset + sizeof(*spa) * 3; /* mem-region14 (spa/dcr4, dimm4) */ memdev = nfit_buf + offset; memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; memdev->header.length = sizeof(*memdev); memdev->device_handle = handle[4]; memdev->physical_id = 4; memdev->region_id = 0; memdev->range_index = 10+1; memdev->region_index = 8+1; memdev->region_size = 0; memdev->region_offset = 0; memdev->address = 0; memdev->interleave_index = 0; memdev->interleave_ways = 1; /* mem-region15 (spa0, dimm4) */ memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map); memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; memdev->header.length = sizeof(*memdev); memdev->device_handle = handle[4]; memdev->physical_id = 4; memdev->region_id = 0; memdev->range_index = 11+1; memdev->region_index = 9+1; memdev->region_size = SPA0_SIZE; memdev->region_offset = t->spa_set_dma[2]; memdev->address = 0; memdev->interleave_index = 0; memdev->interleave_ways = 1; /* mem-region16 (spa/bdw4, dimm4) */ memdev = nfit_buf + offset + sizeof(struct acpi_nfit_memory_map) * 2; memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; memdev->header.length = sizeof(*memdev); memdev->device_handle = handle[4]; memdev->physical_id = 4; memdev->region_id = 0; memdev->range_index = 12+1; memdev->region_index = 8+1; memdev->region_size = 0; memdev->region_offset = 0; memdev->address = 0; memdev->interleave_index = 0; memdev->interleave_ways = 1; offset = offset + sizeof(struct acpi_nfit_memory_map) * 3; /* flush3 (dimm4) */ flush = nfit_buf + offset; flush->header.type = ACPI_NFIT_TYPE_FLUSH_ADDRESS; flush->header.length = flush_hint_size; flush->device_handle = handle[4]; flush->hint_count = NUM_HINTS; for (i = 0; i < NUM_HINTS; i++) flush->hint_address[i] = t->flush_dma[4] + i * sizeof(u64); } post_ars_status(&t->ars_state, t->spa_set_dma[0], SPA0_SIZE); acpi_desc = &t->acpi_desc; set_bit(ND_CMD_GET_CONFIG_SIZE, &acpi_desc->dimm_cmd_force_en); set_bit(ND_CMD_GET_CONFIG_DATA, &acpi_desc->dimm_cmd_force_en); set_bit(ND_CMD_SET_CONFIG_DATA, &acpi_desc->dimm_cmd_force_en); set_bit(ND_CMD_SMART, &acpi_desc->dimm_cmd_force_en); set_bit(ND_CMD_ARS_CAP, &acpi_desc->bus_cmd_force_en); set_bit(ND_CMD_ARS_START, &acpi_desc->bus_cmd_force_en); set_bit(ND_CMD_ARS_STATUS, &acpi_desc->bus_cmd_force_en); set_bit(ND_CMD_CLEAR_ERROR, &acpi_desc->bus_cmd_force_en); set_bit(ND_CMD_SMART_THRESHOLD, &acpi_desc->dimm_cmd_force_en); } static void nfit_test1_setup(struct nfit_test *t) { size_t offset; void *nfit_buf = t->nfit_buf; struct acpi_nfit_memory_map *memdev; struct acpi_nfit_control_region *dcr; struct acpi_nfit_system_address *spa; struct acpi_nfit_desc *acpi_desc; offset = 0; /* spa0 (flat range with no bdw aliasing) */ spa = nfit_buf + offset; spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_PM), 16); spa->range_index = 0+1; spa->address = t->spa_set_dma[0]; spa->length = SPA2_SIZE; /* virtual cd region */ spa = nfit_buf + sizeof(*spa); spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_VCD), 16); spa->range_index = 0; spa->address = t->spa_set_dma[1]; spa->length = SPA_VCD_SIZE; offset += sizeof(*spa) * 2; /* mem-region0 (spa0, dimm0) */ memdev = nfit_buf + offset; memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; memdev->header.length = sizeof(*memdev); memdev->device_handle = 0; memdev->physical_id = 0; memdev->region_id = 0; memdev->range_index = 0+1; memdev->region_index = 0+1; memdev->region_size = SPA2_SIZE; memdev->region_offset = 0; memdev->address = 0; memdev->interleave_index = 0; memdev->interleave_ways = 1; memdev->flags = ACPI_NFIT_MEM_SAVE_FAILED | ACPI_NFIT_MEM_RESTORE_FAILED | ACPI_NFIT_MEM_FLUSH_FAILED | ACPI_NFIT_MEM_HEALTH_OBSERVED | ACPI_NFIT_MEM_NOT_ARMED; offset += sizeof(*memdev); /* dcr-descriptor0 */ dcr = nfit_buf + offset; dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION; dcr->header.length = offsetof(struct acpi_nfit_control_region, window_size); dcr->region_index = 0+1; dcr->vendor_id = 0xabcd; dcr->device_id = 0; dcr->revision_id = 1; dcr->serial_number = ~0; dcr->code = NFIT_FIC_BYTE; dcr->windows = 0; post_ars_status(&t->ars_state, t->spa_set_dma[0], SPA2_SIZE); acpi_desc = &t->acpi_desc; set_bit(ND_CMD_ARS_CAP, &acpi_desc->bus_cmd_force_en); set_bit(ND_CMD_ARS_START, &acpi_desc->bus_cmd_force_en); set_bit(ND_CMD_ARS_STATUS, &acpi_desc->bus_cmd_force_en); set_bit(ND_CMD_CLEAR_ERROR, &acpi_desc->bus_cmd_force_en); } static int nfit_test_blk_do_io(struct nd_blk_region *ndbr, resource_size_t dpa, void *iobuf, u64 len, int rw) { struct nfit_blk *nfit_blk = ndbr->blk_provider_data; struct nfit_blk_mmio *mmio = &nfit_blk->mmio[BDW]; struct nd_region *nd_region = &ndbr->nd_region; unsigned int lane; lane = nd_region_acquire_lane(nd_region); if (rw) memcpy(mmio->addr.base + dpa, iobuf, len); else { memcpy(iobuf, mmio->addr.base + dpa, len); /* give us some some coverage of the mmio_flush_range() API */ mmio_flush_range(mmio->addr.base + dpa, len); } nd_region_release_lane(nd_region, lane); return 0; } static int nfit_test_probe(struct platform_device *pdev) { struct nvdimm_bus_descriptor *nd_desc; struct acpi_nfit_desc *acpi_desc; struct device *dev = &pdev->dev; struct nfit_test *nfit_test; int rc; nfit_test = to_nfit_test(&pdev->dev); /* common alloc */ if (nfit_test->num_dcr) { int num = nfit_test->num_dcr; nfit_test->dimm = devm_kcalloc(dev, num, sizeof(void *), GFP_KERNEL); nfit_test->dimm_dma = devm_kcalloc(dev, num, sizeof(dma_addr_t), GFP_KERNEL); nfit_test->flush = devm_kcalloc(dev, num, sizeof(void *), GFP_KERNEL); nfit_test->flush_dma = devm_kcalloc(dev, num, sizeof(dma_addr_t), GFP_KERNEL); nfit_test->label = devm_kcalloc(dev, num, sizeof(void *), GFP_KERNEL); nfit_test->label_dma = devm_kcalloc(dev, num, sizeof(dma_addr_t), GFP_KERNEL); nfit_test->dcr = devm_kcalloc(dev, num, sizeof(struct nfit_test_dcr *), GFP_KERNEL); nfit_test->dcr_dma = devm_kcalloc(dev, num, sizeof(dma_addr_t), GFP_KERNEL); if (nfit_test->dimm && nfit_test->dimm_dma && nfit_test->label && nfit_test->label_dma && nfit_test->dcr && nfit_test->dcr_dma && nfit_test->flush && nfit_test->flush_dma) /* pass */; else return -ENOMEM; } if (nfit_test->num_pm) { int num = nfit_test->num_pm; nfit_test->spa_set = devm_kcalloc(dev, num, sizeof(void *), GFP_KERNEL); nfit_test->spa_set_dma = devm_kcalloc(dev, num, sizeof(dma_addr_t), GFP_KERNEL); if (nfit_test->spa_set && nfit_test->spa_set_dma) /* pass */; else return -ENOMEM; } /* per-nfit specific alloc */ if (nfit_test->alloc(nfit_test)) return -ENOMEM; nfit_test->setup(nfit_test); acpi_desc = &nfit_test->acpi_desc; acpi_nfit_desc_init(acpi_desc, &pdev->dev); acpi_desc->nfit = nfit_test->nfit_buf; acpi_desc->blk_do_io = nfit_test_blk_do_io; nd_desc = &acpi_desc->nd_desc; nd_desc->provider_name = NULL; nd_desc->ndctl = nfit_test_ctl; acpi_desc->nvdimm_bus = nvdimm_bus_register(&pdev->dev, nd_desc); if (!acpi_desc->nvdimm_bus) return -ENXIO; rc = acpi_nfit_init(acpi_desc, nfit_test->nfit_size); if (rc) { nvdimm_bus_unregister(acpi_desc->nvdimm_bus); return rc; } if (nfit_test->setup != nfit_test0_setup) return 0; nfit_test->setup_hotplug = 1; nfit_test->setup(nfit_test); rc = acpi_nfit_init(acpi_desc, nfit_test->nfit_size); if (rc) { nvdimm_bus_unregister(acpi_desc->nvdimm_bus); return rc; } return 0; } static int nfit_test_remove(struct platform_device *pdev) { struct nfit_test *nfit_test = to_nfit_test(&pdev->dev); struct acpi_nfit_desc *acpi_desc = &nfit_test->acpi_desc; nvdimm_bus_unregister(acpi_desc->nvdimm_bus); return 0; } static void nfit_test_release(struct device *dev) { struct nfit_test *nfit_test = to_nfit_test(dev); kfree(nfit_test); } static const struct platform_device_id nfit_test_id[] = { { KBUILD_MODNAME }, { }, }; static struct platform_driver nfit_test_driver = { .probe = nfit_test_probe, .remove = nfit_test_remove, .driver = { .name = KBUILD_MODNAME, }, .id_table = nfit_test_id, }; static __init int nfit_test_init(void) { int rc, i; nfit_test_setup(nfit_test_lookup); for (i = 0; i < NUM_NFITS; i++) { struct nfit_test *nfit_test; struct platform_device *pdev; nfit_test = kzalloc(sizeof(*nfit_test), GFP_KERNEL); if (!nfit_test) { rc = -ENOMEM; goto err_register; } INIT_LIST_HEAD(&nfit_test->resources); switch (i) { case 0: nfit_test->num_pm = NUM_PM; nfit_test->num_dcr = NUM_DCR; nfit_test->alloc = nfit_test0_alloc; nfit_test->setup = nfit_test0_setup; break; case 1: nfit_test->num_pm = 1; nfit_test->alloc = nfit_test1_alloc; nfit_test->setup = nfit_test1_setup; break; default: rc = -EINVAL; goto err_register; } pdev = &nfit_test->pdev; pdev->name = KBUILD_MODNAME; pdev->id = i; pdev->dev.release = nfit_test_release; rc = platform_device_register(pdev); if (rc) { put_device(&pdev->dev); goto err_register; } rc = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); if (rc) goto err_register; instances[i] = nfit_test; } rc = platform_driver_register(&nfit_test_driver); if (rc) goto err_register; return 0; err_register: for (i = 0; i < NUM_NFITS; i++) if (instances[i]) platform_device_unregister(&instances[i]->pdev); nfit_test_teardown(); return rc; } static __exit void nfit_test_exit(void) { int i; platform_driver_unregister(&nfit_test_driver); for (i = 0; i < NUM_NFITS; i++) platform_device_unregister(&instances[i]->pdev); nfit_test_teardown(); } module_init(nfit_test_init); module_exit(nfit_test_exit); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Intel Corporation");