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-rw-r--r--drivers/acpi/acpi_extlog.c20
-rw-r--r--drivers/acpi/apei/ghes.c8
-rw-r--r--drivers/acpi/bus.c29
-rw-r--r--drivers/acpi/nfit/core.c206
-rw-r--r--drivers/acpi/nfit/mce.c2
-rw-r--r--drivers/acpi/nfit/nfit.h7
-rw-r--r--drivers/acpi/utils.c16
7 files changed, 189 insertions, 99 deletions
diff --git a/drivers/acpi/acpi_extlog.c b/drivers/acpi/acpi_extlog.c
index 502ea4dc..560fdae 100644
--- a/drivers/acpi/acpi_extlog.c
+++ b/drivers/acpi/acpi_extlog.c
@@ -141,9 +141,9 @@ static int extlog_print(struct notifier_block *nb, unsigned long val,
int cpu = mce->extcpu;
struct acpi_hest_generic_status *estatus, *tmp;
struct acpi_hest_generic_data *gdata;
- const uuid_le *fru_id = &NULL_UUID_LE;
+ const guid_t *fru_id = &guid_null;
char *fru_text = "";
- uuid_le *sec_type;
+ guid_t *sec_type;
static u32 err_seq;
estatus = extlog_elog_entry_check(cpu, bank);
@@ -165,11 +165,11 @@ static int extlog_print(struct notifier_block *nb, unsigned long val,
err_seq++;
gdata = (struct acpi_hest_generic_data *)(tmp + 1);
if (gdata->validation_bits & CPER_SEC_VALID_FRU_ID)
- fru_id = (uuid_le *)gdata->fru_id;
+ fru_id = (guid_t *)gdata->fru_id;
if (gdata->validation_bits & CPER_SEC_VALID_FRU_TEXT)
fru_text = gdata->fru_text;
- sec_type = (uuid_le *)gdata->section_type;
- if (!uuid_le_cmp(*sec_type, CPER_SEC_PLATFORM_MEM)) {
+ sec_type = (guid_t *)gdata->section_type;
+ if (guid_equal(sec_type, &CPER_SEC_PLATFORM_MEM)) {
struct cper_sec_mem_err *mem = (void *)(gdata + 1);
if (gdata->error_data_length >= sizeof(*mem))
trace_extlog_mem_event(mem, err_seq, fru_id, fru_text,
@@ -182,17 +182,17 @@ out:
static bool __init extlog_get_l1addr(void)
{
- u8 uuid[16];
+ guid_t guid;
acpi_handle handle;
union acpi_object *obj;
- acpi_str_to_uuid(extlog_dsm_uuid, uuid);
-
+ if (guid_parse(extlog_dsm_uuid, &guid))
+ return false;
if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle)))
return false;
- if (!acpi_check_dsm(handle, uuid, EXTLOG_DSM_REV, 1 << EXTLOG_FN_ADDR))
+ if (!acpi_check_dsm(handle, &guid, EXTLOG_DSM_REV, 1 << EXTLOG_FN_ADDR))
return false;
- obj = acpi_evaluate_dsm_typed(handle, uuid, EXTLOG_DSM_REV,
+ obj = acpi_evaluate_dsm_typed(handle, &guid, EXTLOG_DSM_REV,
EXTLOG_FN_ADDR, NULL, ACPI_TYPE_INTEGER);
if (!obj) {
return false;
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index d0855c0..980515e 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -431,12 +431,13 @@ static void ghes_do_proc(struct ghes *ghes,
{
int sev, sec_sev;
struct acpi_hest_generic_data *gdata;
+ guid_t *sec_type;
sev = ghes_severity(estatus->error_severity);
apei_estatus_for_each_section(estatus, gdata) {
+ sec_type = (guid_t *)gdata->section_type;
sec_sev = ghes_severity(gdata->error_severity);
- if (!uuid_le_cmp(*(uuid_le *)gdata->section_type,
- CPER_SEC_PLATFORM_MEM)) {
+ if (guid_equal(sec_type, &CPER_SEC_PLATFORM_MEM)) {
struct cper_sec_mem_err *mem_err;
mem_err = (struct cper_sec_mem_err *)(gdata+1);
ghes_edac_report_mem_error(ghes, sev, mem_err);
@@ -445,8 +446,7 @@ static void ghes_do_proc(struct ghes *ghes,
ghes_handle_memory_failure(gdata, sev);
}
#ifdef CONFIG_ACPI_APEI_PCIEAER
- else if (!uuid_le_cmp(*(uuid_le *)gdata->section_type,
- CPER_SEC_PCIE)) {
+ else if (guid_equal(sec_type, &CPER_SEC_PCIE)) {
struct cper_sec_pcie *pcie_err;
pcie_err = (struct cper_sec_pcie *)(gdata+1);
if (sev == GHES_SEV_RECOVERABLE &&
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 784bda6..5a6fbe0 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -196,42 +196,19 @@ static void acpi_print_osc_error(acpi_handle handle,
pr_debug("\n");
}
-acpi_status acpi_str_to_uuid(char *str, u8 *uuid)
-{
- int i;
- static int opc_map_to_uuid[16] = {6, 4, 2, 0, 11, 9, 16, 14, 19, 21,
- 24, 26, 28, 30, 32, 34};
-
- if (strlen(str) != 36)
- return AE_BAD_PARAMETER;
- for (i = 0; i < 36; i++) {
- if (i == 8 || i == 13 || i == 18 || i == 23) {
- if (str[i] != '-')
- return AE_BAD_PARAMETER;
- } else if (!isxdigit(str[i]))
- return AE_BAD_PARAMETER;
- }
- for (i = 0; i < 16; i++) {
- uuid[i] = hex_to_bin(str[opc_map_to_uuid[i]]) << 4;
- uuid[i] |= hex_to_bin(str[opc_map_to_uuid[i] + 1]);
- }
- return AE_OK;
-}
-EXPORT_SYMBOL_GPL(acpi_str_to_uuid);
-
acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context)
{
acpi_status status;
struct acpi_object_list input;
union acpi_object in_params[4];
union acpi_object *out_obj;
- u8 uuid[16];
+ guid_t guid;
u32 errors;
struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL};
if (!context)
return AE_ERROR;
- if (ACPI_FAILURE(acpi_str_to_uuid(context->uuid_str, uuid)))
+ if (guid_parse(context->uuid_str, &guid))
return AE_ERROR;
context->ret.length = ACPI_ALLOCATE_BUFFER;
context->ret.pointer = NULL;
@@ -241,7 +218,7 @@ acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context)
input.pointer = in_params;
in_params[0].type = ACPI_TYPE_BUFFER;
in_params[0].buffer.length = 16;
- in_params[0].buffer.pointer = uuid;
+ in_params[0].buffer.pointer = (u8 *)&guid;
in_params[1].type = ACPI_TYPE_INTEGER;
in_params[1].integer.value = context->rev;
in_params[2].type = ACPI_TYPE_INTEGER;
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index 60d1ca1..b75b734 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -73,11 +73,11 @@ struct nfit_table_prev {
struct list_head flushes;
};
-static u8 nfit_uuid[NFIT_UUID_MAX][16];
+static guid_t nfit_uuid[NFIT_UUID_MAX];
-const u8 *to_nfit_uuid(enum nfit_uuids id)
+const guid_t *to_nfit_uuid(enum nfit_uuids id)
{
- return nfit_uuid[id];
+ return &nfit_uuid[id];
}
EXPORT_SYMBOL(to_nfit_uuid);
@@ -221,7 +221,7 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
u32 offset, fw_status = 0;
acpi_handle handle;
unsigned int func;
- const u8 *uuid;
+ const guid_t *guid;
int rc, i;
func = cmd;
@@ -244,7 +244,7 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
cmd_mask = nvdimm_cmd_mask(nvdimm);
dsm_mask = nfit_mem->dsm_mask;
desc = nd_cmd_dimm_desc(cmd);
- uuid = to_nfit_uuid(nfit_mem->family);
+ guid = to_nfit_uuid(nfit_mem->family);
handle = adev->handle;
} else {
struct acpi_device *adev = to_acpi_dev(acpi_desc);
@@ -252,8 +252,10 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
cmd_name = nvdimm_bus_cmd_name(cmd);
cmd_mask = nd_desc->cmd_mask;
dsm_mask = cmd_mask;
+ if (cmd == ND_CMD_CALL)
+ dsm_mask = nd_desc->bus_dsm_mask;
desc = nd_cmd_bus_desc(cmd);
- uuid = to_nfit_uuid(NFIT_DEV_BUS);
+ guid = to_nfit_uuid(NFIT_DEV_BUS);
handle = adev->handle;
dimm_name = "bus";
}
@@ -288,7 +290,7 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
in_buf.buffer.pointer,
min_t(u32, 256, in_buf.buffer.length), true);
- out_obj = acpi_evaluate_dsm(handle, uuid, 1, func, &in_obj);
+ out_obj = acpi_evaluate_dsm(handle, guid, 1, func, &in_obj);
if (!out_obj) {
dev_dbg(dev, "%s:%s _DSM failed cmd: %s\n", __func__, dimm_name,
cmd_name);
@@ -408,7 +410,7 @@ int nfit_spa_type(struct acpi_nfit_system_address *spa)
int i;
for (i = 0; i < NFIT_UUID_MAX; i++)
- if (memcmp(to_nfit_uuid(i), spa->range_guid, 16) == 0)
+ if (guid_equal(to_nfit_uuid(i), (guid_t *)&spa->range_guid))
return i;
return -1;
}
@@ -926,6 +928,17 @@ static int nfit_mem_init(struct acpi_nfit_desc *acpi_desc)
return 0;
}
+static ssize_t bus_dsm_mask_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct nvdimm_bus *nvdimm_bus = to_nvdimm_bus(dev);
+ struct nvdimm_bus_descriptor *nd_desc = to_nd_desc(nvdimm_bus);
+
+ return sprintf(buf, "%#lx\n", nd_desc->bus_dsm_mask);
+}
+static struct device_attribute dev_attr_bus_dsm_mask =
+ __ATTR(dsm_mask, 0444, bus_dsm_mask_show, NULL);
+
static ssize_t revision_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
@@ -1030,7 +1043,7 @@ static ssize_t scrub_store(struct device *dev,
if (nd_desc) {
struct acpi_nfit_desc *acpi_desc = to_acpi_desc(nd_desc);
- rc = acpi_nfit_ars_rescan(acpi_desc);
+ rc = acpi_nfit_ars_rescan(acpi_desc, 0);
}
device_unlock(dev);
if (rc)
@@ -1062,10 +1075,11 @@ static struct attribute *acpi_nfit_attributes[] = {
&dev_attr_revision.attr,
&dev_attr_scrub.attr,
&dev_attr_hw_error_scrub.attr,
+ &dev_attr_bus_dsm_mask.attr,
NULL,
};
-static struct attribute_group acpi_nfit_attribute_group = {
+static const struct attribute_group acpi_nfit_attribute_group = {
.name = "nfit",
.attrs = acpi_nfit_attributes,
.is_visible = nfit_visible,
@@ -1345,7 +1359,7 @@ static umode_t acpi_nfit_dimm_attr_visible(struct kobject *kobj,
return a->mode;
}
-static struct attribute_group acpi_nfit_dimm_attribute_group = {
+static const struct attribute_group acpi_nfit_dimm_attribute_group = {
.name = "nfit",
.attrs = acpi_nfit_dimm_attributes,
.is_visible = acpi_nfit_dimm_attr_visible,
@@ -1414,7 +1428,7 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc,
struct acpi_device *adev, *adev_dimm;
struct device *dev = acpi_desc->dev;
unsigned long dsm_mask;
- const u8 *uuid;
+ const guid_t *guid;
int i;
int family = -1;
@@ -1443,7 +1457,7 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc,
/*
* Until standardization materializes we need to consider 4
* different command sets. Note, that checking for function0 (bit0)
- * tells us if any commands are reachable through this uuid.
+ * tells us if any commands are reachable through this GUID.
*/
for (i = NVDIMM_FAMILY_INTEL; i <= NVDIMM_FAMILY_MSFT; i++)
if (acpi_check_dsm(adev_dimm->handle, to_nfit_uuid(i), 1, 1))
@@ -1473,9 +1487,9 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc,
return 0;
}
- uuid = to_nfit_uuid(nfit_mem->family);
+ guid = to_nfit_uuid(nfit_mem->family);
for_each_set_bit(i, &dsm_mask, BITS_PER_LONG)
- if (acpi_check_dsm(adev_dimm->handle, uuid, 1, 1ULL << i))
+ if (acpi_check_dsm(adev_dimm->handle, guid, 1, 1ULL << i))
set_bit(i, &nfit_mem->dsm_mask);
return 0;
@@ -1607,11 +1621,23 @@ static int acpi_nfit_register_dimms(struct acpi_nfit_desc *acpi_desc)
acpi_desc);
}
+/*
+ * These constants are private because there are no kernel consumers of
+ * these commands.
+ */
+enum nfit_aux_cmds {
+ NFIT_CMD_TRANSLATE_SPA = 5,
+ NFIT_CMD_ARS_INJECT_SET = 7,
+ NFIT_CMD_ARS_INJECT_CLEAR = 8,
+ NFIT_CMD_ARS_INJECT_GET = 9,
+};
+
static void acpi_nfit_init_dsms(struct acpi_nfit_desc *acpi_desc)
{
struct nvdimm_bus_descriptor *nd_desc = &acpi_desc->nd_desc;
- const u8 *uuid = to_nfit_uuid(NFIT_DEV_BUS);
+ const guid_t *guid = to_nfit_uuid(NFIT_DEV_BUS);
struct acpi_device *adev;
+ unsigned long dsm_mask;
int i;
nd_desc->cmd_mask = acpi_desc->bus_cmd_force_en;
@@ -1620,8 +1646,22 @@ static void acpi_nfit_init_dsms(struct acpi_nfit_desc *acpi_desc)
return;
for (i = ND_CMD_ARS_CAP; i <= ND_CMD_CLEAR_ERROR; i++)
- if (acpi_check_dsm(adev->handle, uuid, 1, 1ULL << i))
+ if (acpi_check_dsm(adev->handle, guid, 1, 1ULL << i))
set_bit(i, &nd_desc->cmd_mask);
+ set_bit(ND_CMD_CALL, &nd_desc->cmd_mask);
+
+ dsm_mask =
+ (1 << ND_CMD_ARS_CAP) |
+ (1 << ND_CMD_ARS_START) |
+ (1 << ND_CMD_ARS_STATUS) |
+ (1 << ND_CMD_CLEAR_ERROR) |
+ (1 << NFIT_CMD_TRANSLATE_SPA) |
+ (1 << NFIT_CMD_ARS_INJECT_SET) |
+ (1 << NFIT_CMD_ARS_INJECT_CLEAR) |
+ (1 << NFIT_CMD_ARS_INJECT_GET);
+ for_each_set_bit(i, &dsm_mask, BITS_PER_LONG)
+ if (acpi_check_dsm(adev->handle, guid, 1, 1ULL << i))
+ set_bit(i, &nd_desc->bus_dsm_mask);
}
static ssize_t range_index_show(struct device *dev,
@@ -1639,7 +1679,7 @@ static struct attribute *acpi_nfit_region_attributes[] = {
NULL,
};
-static struct attribute_group acpi_nfit_region_attribute_group = {
+static const struct attribute_group acpi_nfit_region_attribute_group = {
.name = "nfit",
.attrs = acpi_nfit_region_attributes,
};
@@ -1662,12 +1702,29 @@ struct nfit_set_info {
} mapping[0];
};
+struct nfit_set_info2 {
+ struct nfit_set_info_map2 {
+ u64 region_offset;
+ u32 serial_number;
+ u16 vendor_id;
+ u16 manufacturing_date;
+ u8 manufacturing_location;
+ u8 reserved[31];
+ } mapping[0];
+};
+
static size_t sizeof_nfit_set_info(int num_mappings)
{
return sizeof(struct nfit_set_info)
+ num_mappings * sizeof(struct nfit_set_info_map);
}
+static size_t sizeof_nfit_set_info2(int num_mappings)
+{
+ return sizeof(struct nfit_set_info2)
+ + num_mappings * sizeof(struct nfit_set_info_map2);
+}
+
static int cmp_map_compat(const void *m0, const void *m1)
{
const struct nfit_set_info_map *map0 = m0;
@@ -1689,6 +1746,18 @@ static int cmp_map(const void *m0, const void *m1)
return 0;
}
+static int cmp_map2(const void *m0, const void *m1)
+{
+ const struct nfit_set_info_map2 *map0 = m0;
+ const struct nfit_set_info_map2 *map1 = m1;
+
+ if (map0->region_offset < map1->region_offset)
+ return -1;
+ else if (map0->region_offset > map1->region_offset)
+ return 1;
+ return 0;
+}
+
/* Retrieve the nth entry referencing this spa */
static struct acpi_nfit_memory_map *memdev_from_spa(
struct acpi_nfit_desc *acpi_desc, u16 range_index, int n)
@@ -1706,27 +1775,31 @@ static int acpi_nfit_init_interleave_set(struct acpi_nfit_desc *acpi_desc,
struct nd_region_desc *ndr_desc,
struct acpi_nfit_system_address *spa)
{
- int i, spa_type = nfit_spa_type(spa);
struct device *dev = acpi_desc->dev;
struct nd_interleave_set *nd_set;
u16 nr = ndr_desc->num_mappings;
+ struct nfit_set_info2 *info2;
struct nfit_set_info *info;
-
- if (spa_type == NFIT_SPA_PM || spa_type == NFIT_SPA_VOLATILE)
- /* pass */;
- else
- return 0;
+ int i;
nd_set = devm_kzalloc(dev, sizeof(*nd_set), GFP_KERNEL);
if (!nd_set)
return -ENOMEM;
+ ndr_desc->nd_set = nd_set;
+ guid_copy(&nd_set->type_guid, (guid_t *) spa->range_guid);
info = devm_kzalloc(dev, sizeof_nfit_set_info(nr), GFP_KERNEL);
if (!info)
return -ENOMEM;
+
+ info2 = devm_kzalloc(dev, sizeof_nfit_set_info2(nr), GFP_KERNEL);
+ if (!info2)
+ return -ENOMEM;
+
for (i = 0; i < nr; i++) {
struct nd_mapping_desc *mapping = &ndr_desc->mapping[i];
struct nfit_set_info_map *map = &info->mapping[i];
+ struct nfit_set_info_map2 *map2 = &info2->mapping[i];
struct nvdimm *nvdimm = mapping->nvdimm;
struct nfit_mem *nfit_mem = nvdimm_provider_data(nvdimm);
struct acpi_nfit_memory_map *memdev = memdev_from_spa(acpi_desc,
@@ -1739,19 +1812,32 @@ static int acpi_nfit_init_interleave_set(struct acpi_nfit_desc *acpi_desc,
map->region_offset = memdev->region_offset;
map->serial_number = nfit_mem->dcr->serial_number;
+
+ map2->region_offset = memdev->region_offset;
+ map2->serial_number = nfit_mem->dcr->serial_number;
+ map2->vendor_id = nfit_mem->dcr->vendor_id;
+ map2->manufacturing_date = nfit_mem->dcr->manufacturing_date;
+ map2->manufacturing_location = nfit_mem->dcr->manufacturing_location;
}
+ /* v1.1 namespaces */
sort(&info->mapping[0], nr, sizeof(struct nfit_set_info_map),
cmp_map, NULL);
- nd_set->cookie = nd_fletcher64(info, sizeof_nfit_set_info(nr), 0);
+ nd_set->cookie1 = nd_fletcher64(info, sizeof_nfit_set_info(nr), 0);
+
+ /* v1.2 namespaces */
+ sort(&info2->mapping[0], nr, sizeof(struct nfit_set_info_map2),
+ cmp_map2, NULL);
+ nd_set->cookie2 = nd_fletcher64(info2, sizeof_nfit_set_info2(nr), 0);
- /* support namespaces created with the wrong sort order */
+ /* support v1.1 namespaces created with the wrong sort order */
sort(&info->mapping[0], nr, sizeof(struct nfit_set_info_map),
cmp_map_compat, NULL);
nd_set->altcookie = nd_fletcher64(info, sizeof_nfit_set_info(nr), 0);
ndr_desc->nd_set = nd_set;
devm_kfree(dev, info);
+ devm_kfree(dev, info2);
return 0;
}
@@ -2049,6 +2135,7 @@ static int ars_start(struct acpi_nfit_desc *acpi_desc, struct nfit_spa *nfit_spa
memset(&ars_start, 0, sizeof(ars_start));
ars_start.address = spa->address;
ars_start.length = spa->length;
+ ars_start.flags = acpi_desc->ars_start_flags;
if (nfit_spa_type(spa) == NFIT_SPA_PM)
ars_start.type = ND_ARS_PERSISTENT;
else if (nfit_spa_type(spa) == NFIT_SPA_VOLATILE)
@@ -2075,6 +2162,7 @@ static int ars_continue(struct acpi_nfit_desc *acpi_desc)
ars_start.address = ars_status->restart_address;
ars_start.length = ars_status->restart_length;
ars_start.type = ars_status->type;
+ ars_start.flags = acpi_desc->ars_start_flags;
rc = nd_desc->ndctl(nd_desc, NULL, ND_CMD_ARS_START, &ars_start,
sizeof(ars_start), &cmd_rc);
if (rc < 0)
@@ -2177,7 +2265,7 @@ static int acpi_nfit_init_mapping(struct acpi_nfit_desc *acpi_desc,
struct acpi_nfit_system_address *spa = nfit_spa->spa;
struct nd_blk_region_desc *ndbr_desc;
struct nfit_mem *nfit_mem;
- int blk_valid = 0;
+ int blk_valid = 0, rc;
if (!nvdimm) {
dev_err(acpi_desc->dev, "spa%d dimm: %#x not found\n",
@@ -2209,6 +2297,9 @@ static int acpi_nfit_init_mapping(struct acpi_nfit_desc *acpi_desc,
ndbr_desc = to_blk_region_desc(ndr_desc);
ndbr_desc->enable = acpi_nfit_blk_region_enable;
ndbr_desc->do_io = acpi_desc->blk_do_io;
+ rc = acpi_nfit_init_interleave_set(acpi_desc, ndr_desc, spa);
+ if (rc)
+ return rc;
nfit_spa->nd_region = nvdimm_blk_region_create(acpi_desc->nvdimm_bus,
ndr_desc);
if (!nfit_spa->nd_region)
@@ -2600,6 +2691,7 @@ static void acpi_nfit_scrub(struct work_struct *work)
list_for_each_entry(nfit_spa, &acpi_desc->spas, list)
acpi_nfit_async_scrub(acpi_desc, nfit_spa);
acpi_desc->scrub_count++;
+ acpi_desc->ars_start_flags = 0;
if (acpi_desc->scrub_count_state)
sysfs_notify_dirent(acpi_desc->scrub_count_state);
mutex_unlock(&acpi_desc->init_mutex);
@@ -2618,6 +2710,7 @@ static int acpi_nfit_register_regions(struct acpi_nfit_desc *acpi_desc)
return rc;
}
+ acpi_desc->ars_start_flags = 0;
if (!acpi_desc->cancel)
queue_work(nfit_wq, &acpi_desc->work);
return 0;
@@ -2822,7 +2915,7 @@ static int acpi_nfit_clear_to_send(struct nvdimm_bus_descriptor *nd_desc,
return 0;
}
-int acpi_nfit_ars_rescan(struct acpi_nfit_desc *acpi_desc)
+int acpi_nfit_ars_rescan(struct acpi_nfit_desc *acpi_desc, u8 flags)
{
struct device *dev = acpi_desc->dev;
struct nfit_spa *nfit_spa;
@@ -2844,6 +2937,7 @@ int acpi_nfit_ars_rescan(struct acpi_nfit_desc *acpi_desc)
nfit_spa->ars_required = 1;
}
+ acpi_desc->ars_start_flags = flags;
queue_work(nfit_wq, &acpi_desc->work);
dev_dbg(dev, "%s: ars_scan triggered\n", __func__);
mutex_unlock(&acpi_desc->init_mutex);
@@ -2972,7 +3066,7 @@ static int acpi_nfit_remove(struct acpi_device *adev)
return 0;
}
-void __acpi_nfit_notify(struct device *dev, acpi_handle handle, u32 event)
+static void acpi_nfit_update_notify(struct device *dev, acpi_handle handle)
{
struct acpi_nfit_desc *acpi_desc = dev_get_drvdata(dev);
struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER, NULL };
@@ -2980,11 +3074,6 @@ void __acpi_nfit_notify(struct device *dev, acpi_handle handle, u32 event)
acpi_status status;
int ret;
- dev_dbg(dev, "%s: event: %d\n", __func__, event);
-
- if (event != NFIT_NOTIFY_UPDATE)
- return;
-
if (!dev->driver) {
/* dev->driver may be null if we're being removed */
dev_dbg(dev, "%s: no driver found for dev\n", __func__);
@@ -3021,6 +3110,29 @@ void __acpi_nfit_notify(struct device *dev, acpi_handle handle, u32 event)
dev_err(dev, "Invalid _FIT\n");
kfree(buf.pointer);
}
+
+static void acpi_nfit_uc_error_notify(struct device *dev, acpi_handle handle)
+{
+ struct acpi_nfit_desc *acpi_desc = dev_get_drvdata(dev);
+ u8 flags = (acpi_desc->scrub_mode == HW_ERROR_SCRUB_ON) ?
+ 0 : ND_ARS_RETURN_PREV_DATA;
+
+ acpi_nfit_ars_rescan(acpi_desc, flags);
+}
+
+void __acpi_nfit_notify(struct device *dev, acpi_handle handle, u32 event)
+{
+ dev_dbg(dev, "%s: event: 0x%x\n", __func__, event);
+
+ switch (event) {
+ case NFIT_NOTIFY_UPDATE:
+ return acpi_nfit_update_notify(dev, handle);
+ case NFIT_NOTIFY_UC_MEMORY_ERROR:
+ return acpi_nfit_uc_error_notify(dev, handle);
+ default:
+ return;
+ }
+}
EXPORT_SYMBOL_GPL(__acpi_nfit_notify);
static void acpi_nfit_notify(struct acpi_device *adev, u32 event)
@@ -3056,19 +3168,19 @@ static __init int nfit_init(void)
BUILD_BUG_ON(sizeof(struct acpi_nfit_control_region) != 80);
BUILD_BUG_ON(sizeof(struct acpi_nfit_data_region) != 40);
- acpi_str_to_uuid(UUID_VOLATILE_MEMORY, nfit_uuid[NFIT_SPA_VOLATILE]);
- acpi_str_to_uuid(UUID_PERSISTENT_MEMORY, nfit_uuid[NFIT_SPA_PM]);
- acpi_str_to_uuid(UUID_CONTROL_REGION, nfit_uuid[NFIT_SPA_DCR]);
- acpi_str_to_uuid(UUID_DATA_REGION, nfit_uuid[NFIT_SPA_BDW]);
- acpi_str_to_uuid(UUID_VOLATILE_VIRTUAL_DISK, nfit_uuid[NFIT_SPA_VDISK]);
- acpi_str_to_uuid(UUID_VOLATILE_VIRTUAL_CD, nfit_uuid[NFIT_SPA_VCD]);
- acpi_str_to_uuid(UUID_PERSISTENT_VIRTUAL_DISK, nfit_uuid[NFIT_SPA_PDISK]);
- acpi_str_to_uuid(UUID_PERSISTENT_VIRTUAL_CD, nfit_uuid[NFIT_SPA_PCD]);
- acpi_str_to_uuid(UUID_NFIT_BUS, nfit_uuid[NFIT_DEV_BUS]);
- acpi_str_to_uuid(UUID_NFIT_DIMM, nfit_uuid[NFIT_DEV_DIMM]);
- acpi_str_to_uuid(UUID_NFIT_DIMM_N_HPE1, nfit_uuid[NFIT_DEV_DIMM_N_HPE1]);
- acpi_str_to_uuid(UUID_NFIT_DIMM_N_HPE2, nfit_uuid[NFIT_DEV_DIMM_N_HPE2]);
- acpi_str_to_uuid(UUID_NFIT_DIMM_N_MSFT, nfit_uuid[NFIT_DEV_DIMM_N_MSFT]);
+ guid_parse(UUID_VOLATILE_MEMORY, &nfit_uuid[NFIT_SPA_VOLATILE]);
+ guid_parse(UUID_PERSISTENT_MEMORY, &nfit_uuid[NFIT_SPA_PM]);
+ guid_parse(UUID_CONTROL_REGION, &nfit_uuid[NFIT_SPA_DCR]);
+ guid_parse(UUID_DATA_REGION, &nfit_uuid[NFIT_SPA_BDW]);
+ guid_parse(UUID_VOLATILE_VIRTUAL_DISK, &nfit_uuid[NFIT_SPA_VDISK]);
+ guid_parse(UUID_VOLATILE_VIRTUAL_CD, &nfit_uuid[NFIT_SPA_VCD]);
+ guid_parse(UUID_PERSISTENT_VIRTUAL_DISK, &nfit_uuid[NFIT_SPA_PDISK]);
+ guid_parse(UUID_PERSISTENT_VIRTUAL_CD, &nfit_uuid[NFIT_SPA_PCD]);
+ guid_parse(UUID_NFIT_BUS, &nfit_uuid[NFIT_DEV_BUS]);
+ guid_parse(UUID_NFIT_DIMM, &nfit_uuid[NFIT_DEV_DIMM]);
+ guid_parse(UUID_NFIT_DIMM_N_HPE1, &nfit_uuid[NFIT_DEV_DIMM_N_HPE1]);
+ guid_parse(UUID_NFIT_DIMM_N_HPE2, &nfit_uuid[NFIT_DEV_DIMM_N_HPE2]);
+ guid_parse(UUID_NFIT_DIMM_N_MSFT, &nfit_uuid[NFIT_DEV_DIMM_N_MSFT]);
nfit_wq = create_singlethread_workqueue("nfit");
if (!nfit_wq)
diff --git a/drivers/acpi/nfit/mce.c b/drivers/acpi/nfit/mce.c
index fd86bec..feeb95d 100644
--- a/drivers/acpi/nfit/mce.c
+++ b/drivers/acpi/nfit/mce.c
@@ -79,7 +79,7 @@ static int nfit_handle_mce(struct notifier_block *nb, unsigned long val,
* already in progress, just let that be the last
* authoritative one
*/
- acpi_nfit_ars_rescan(acpi_desc);
+ acpi_nfit_ars_rescan(acpi_desc, 0);
}
break;
}
diff --git a/drivers/acpi/nfit/nfit.h b/drivers/acpi/nfit/nfit.h
index 58fb7d6..54292db 100644
--- a/drivers/acpi/nfit/nfit.h
+++ b/drivers/acpi/nfit/nfit.h
@@ -18,7 +18,6 @@
#include <linux/libnvdimm.h>
#include <linux/ndctl.h>
#include <linux/types.h>
-#include <linux/uuid.h>
#include <linux/acpi.h>
#include <acpi/acuuid.h>
@@ -80,6 +79,7 @@ enum {
enum nfit_root_notifiers {
NFIT_NOTIFY_UPDATE = 0x80,
+ NFIT_NOTIFY_UC_MEMORY_ERROR = 0x81,
};
enum nfit_dimm_notifiers {
@@ -155,6 +155,7 @@ struct acpi_nfit_desc {
struct list_head idts;
struct nvdimm_bus *nvdimm_bus;
struct device *dev;
+ u8 ars_start_flags;
struct nd_cmd_ars_status *ars_status;
size_t ars_status_size;
struct work_struct work;
@@ -207,7 +208,7 @@ struct nfit_blk {
extern struct list_head acpi_descs;
extern struct mutex acpi_desc_lock;
-int acpi_nfit_ars_rescan(struct acpi_nfit_desc *acpi_desc);
+int acpi_nfit_ars_rescan(struct acpi_nfit_desc *acpi_desc, u8 flags);
#ifdef CONFIG_X86_MCE
void nfit_mce_register(void);
@@ -237,7 +238,7 @@ static inline struct acpi_nfit_desc *to_acpi_desc(
return container_of(nd_desc, struct acpi_nfit_desc, nd_desc);
}
-const u8 *to_nfit_uuid(enum nfit_uuids id);
+const guid_t *to_nfit_uuid(enum nfit_uuids id);
int acpi_nfit_init(struct acpi_nfit_desc *acpi_desc, void *nfit, acpi_size sz);
void acpi_nfit_shutdown(void *data);
void __acpi_nfit_notify(struct device *dev, acpi_handle handle, u32 event);
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index 27d0dcf..b9d956c 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -613,19 +613,19 @@ acpi_status acpi_evaluate_lck(acpi_handle handle, int lock)
/**
* acpi_evaluate_dsm - evaluate device's _DSM method
* @handle: ACPI device handle
- * @uuid: UUID of requested functions, should be 16 bytes
+ * @guid: GUID of requested functions, should be 16 bytes
* @rev: revision number of requested function
* @func: requested function number
* @argv4: the function specific parameter
*
- * Evaluate device's _DSM method with specified UUID, revision id and
+ * Evaluate device's _DSM method with specified GUID, revision id and
* function number. Caller needs to free the returned object.
*
* Though ACPI defines the fourth parameter for _DSM should be a package,
* some old BIOSes do expect a buffer or an integer etc.
*/
union acpi_object *
-acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 func,
+acpi_evaluate_dsm(acpi_handle handle, const guid_t *guid, u64 rev, u64 func,
union acpi_object *argv4)
{
acpi_status ret;
@@ -638,7 +638,7 @@ acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 func,
params[0].type = ACPI_TYPE_BUFFER;
params[0].buffer.length = 16;
- params[0].buffer.pointer = (char *)uuid;
+ params[0].buffer.pointer = (u8 *)guid;
params[1].type = ACPI_TYPE_INTEGER;
params[1].integer.value = rev;
params[2].type = ACPI_TYPE_INTEGER;
@@ -666,7 +666,7 @@ EXPORT_SYMBOL(acpi_evaluate_dsm);
/**
* acpi_check_dsm - check if _DSM method supports requested functions.
* @handle: ACPI device handle
- * @uuid: UUID of requested functions, should be 16 bytes at least
+ * @guid: GUID of requested functions, should be 16 bytes at least
* @rev: revision number of requested functions
* @funcs: bitmap of requested functions
*
@@ -674,7 +674,7 @@ EXPORT_SYMBOL(acpi_evaluate_dsm);
* functions. Currently only support 64 functions at maximum, should be
* enough for now.
*/
-bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 funcs)
+bool acpi_check_dsm(acpi_handle handle, const guid_t *guid, u64 rev, u64 funcs)
{
int i;
u64 mask = 0;
@@ -683,7 +683,7 @@ bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 funcs)
if (funcs == 0)
return false;
- obj = acpi_evaluate_dsm(handle, uuid, rev, 0, NULL);
+ obj = acpi_evaluate_dsm(handle, guid, rev, 0, NULL);
if (!obj)
return false;
@@ -697,7 +697,7 @@ bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, u64 rev, u64 funcs)
/*
* Bit 0 indicates whether there's support for any functions other than
- * function 0 for the specified UUID and revision.
+ * function 0 for the specified GUID and revision.
*/
if ((mask & 0x1) && (mask & funcs) == funcs)
return true;
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