summaryrefslogtreecommitdiff
path: root/drivers/acpi/acpi_extlog.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/acpi/acpi_extlog.c')
-rw-r--r--drivers/acpi/acpi_extlog.c72
1 files changed, 48 insertions, 24 deletions
diff --git a/drivers/acpi/acpi_extlog.c b/drivers/acpi/acpi_extlog.c
index c4a5d87ede7e..b3842ffc19ba 100644
--- a/drivers/acpi/acpi_extlog.c
+++ b/drivers/acpi/acpi_extlog.c
@@ -12,10 +12,12 @@
#include <linux/cper.h>
#include <linux/ratelimit.h>
#include <linux/edac.h>
+#include <linux/ras.h>
#include <asm/cpu.h>
#include <asm/mce.h>
#include "apei/apei-internal.h"
+#include <ras/ras_event.h>
#define EXT_ELOG_ENTRY_MASK GENMASK_ULL(51, 0) /* elog entry address mask */
@@ -69,11 +71,11 @@ static u32 l1_percpu_entry;
#define ELOG_ENTRY_ADDR(phyaddr) \
(phyaddr - elog_base + (u8 *)elog_addr)
-static struct acpi_generic_status *extlog_elog_entry_check(int cpu, int bank)
+static struct acpi_hest_generic_status *extlog_elog_entry_check(int cpu, int bank)
{
int idx;
u64 data;
- struct acpi_generic_status *estatus;
+ struct acpi_hest_generic_status *estatus;
WARN_ON(cpu < 0);
idx = ELOG_IDX(cpu, bank);
@@ -82,7 +84,7 @@ static struct acpi_generic_status *extlog_elog_entry_check(int cpu, int bank)
return NULL;
data &= EXT_ELOG_ENTRY_MASK;
- estatus = (struct acpi_generic_status *)ELOG_ENTRY_ADDR(data);
+ estatus = (struct acpi_hest_generic_status *)ELOG_ENTRY_ADDR(data);
/* if no valid data in elog entry, just return */
if (estatus->block_status == 0)
@@ -92,7 +94,7 @@ static struct acpi_generic_status *extlog_elog_entry_check(int cpu, int bank)
}
static void __print_extlog_rcd(const char *pfx,
- struct acpi_generic_status *estatus, int cpu)
+ struct acpi_hest_generic_status *estatus, int cpu)
{
static atomic_t seqno;
unsigned int curr_seqno;
@@ -111,7 +113,7 @@ static void __print_extlog_rcd(const char *pfx,
}
static int print_extlog_rcd(const char *pfx,
- struct acpi_generic_status *estatus, int cpu)
+ struct acpi_hest_generic_status *estatus, int cpu)
{
/* Not more than 2 messages every 5 seconds */
static DEFINE_RATELIMIT_STATE(ratelimit_corrected, 5*HZ, 2);
@@ -137,8 +139,12 @@ static int extlog_print(struct notifier_block *nb, unsigned long val,
struct mce *mce = (struct mce *)data;
int bank = mce->bank;
int cpu = mce->extcpu;
- struct acpi_generic_status *estatus;
- int rc;
+ struct acpi_hest_generic_status *estatus, *tmp;
+ struct acpi_hest_generic_data *gdata;
+ const uuid_le *fru_id = &NULL_UUID_LE;
+ char *fru_text = "";
+ uuid_le *sec_type;
+ static u32 err_seq;
estatus = extlog_elog_entry_check(cpu, bank);
if (estatus == NULL)
@@ -148,8 +154,29 @@ static int extlog_print(struct notifier_block *nb, unsigned long val,
/* clear record status to enable BIOS to update it again */
estatus->block_status = 0;
- rc = print_extlog_rcd(NULL, (struct acpi_generic_status *)elog_buf, cpu);
+ tmp = (struct acpi_hest_generic_status *)elog_buf;
+
+ if (!ras_userspace_consumers()) {
+ print_extlog_rcd(NULL, tmp, cpu);
+ goto out;
+ }
+
+ /* log event via trace */
+ 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;
+ 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)) {
+ 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,
+ (u8)gdata->error_severity);
+ }
+out:
return NOTIFY_STOP;
}
@@ -196,19 +223,16 @@ static int __init extlog_init(void)
u64 cap;
int rc;
+ rdmsrl(MSR_IA32_MCG_CAP, cap);
+
+ if (!(cap & MCG_ELOG_P) || !extlog_get_l1addr())
+ return -ENODEV;
+
if (get_edac_report_status() == EDAC_REPORTING_FORCE) {
pr_warn("Not loading eMCA, error reporting force-enabled through EDAC.\n");
return -EPERM;
}
- rc = -ENODEV;
- rdmsrl(MSR_IA32_MCG_CAP, cap);
- if (!(cap & MCG_ELOG_P))
- return rc;
-
- if (!extlog_get_l1addr())
- return rc;
-
rc = -EINVAL;
/* get L1 header to fetch necessary information */
l1_hdr_size = sizeof(struct extlog_l1_head);
@@ -220,13 +244,13 @@ static int __init extlog_init(void)
goto err;
}
- extlog_l1_hdr = acpi_os_map_memory(l1_dirbase, l1_hdr_size);
+ extlog_l1_hdr = acpi_os_map_iomem(l1_dirbase, l1_hdr_size);
l1_head = (struct extlog_l1_head *)extlog_l1_hdr;
l1_size = l1_head->total_len;
l1_percpu_entry = l1_head->entries;
elog_base = l1_head->elog_base;
elog_size = l1_head->elog_len;
- acpi_os_unmap_memory(extlog_l1_hdr, l1_hdr_size);
+ acpi_os_unmap_iomem(extlog_l1_hdr, l1_hdr_size);
release_mem_region(l1_dirbase, l1_hdr_size);
/* remap L1 header again based on completed information */
@@ -237,7 +261,7 @@ static int __init extlog_init(void)
(unsigned long long)l1_dirbase + l1_size);
goto err;
}
- extlog_l1_addr = acpi_os_map_memory(l1_dirbase, l1_size);
+ extlog_l1_addr = acpi_os_map_iomem(l1_dirbase, l1_size);
l1_entry_base = (u64 *)((u8 *)extlog_l1_addr + l1_hdr_size);
/* remap elog table */
@@ -248,7 +272,7 @@ static int __init extlog_init(void)
(unsigned long long)elog_base + elog_size);
goto err_release_l1_dir;
}
- elog_addr = acpi_os_map_memory(elog_base, elog_size);
+ elog_addr = acpi_os_map_iomem(elog_base, elog_size);
rc = -ENOMEM;
/* allocate buffer to save elog record */
@@ -270,11 +294,11 @@ static int __init extlog_init(void)
err_release_elog:
if (elog_addr)
- acpi_os_unmap_memory(elog_addr, elog_size);
+ acpi_os_unmap_iomem(elog_addr, elog_size);
release_mem_region(elog_base, elog_size);
err_release_l1_dir:
if (extlog_l1_addr)
- acpi_os_unmap_memory(extlog_l1_addr, l1_size);
+ acpi_os_unmap_iomem(extlog_l1_addr, l1_size);
release_mem_region(l1_dirbase, l1_size);
err:
pr_warn(FW_BUG "Extended error log disabled because of problems parsing f/w tables\n");
@@ -287,9 +311,9 @@ static void __exit extlog_exit(void)
mce_unregister_decode_chain(&extlog_mce_dec);
((struct extlog_l1_head *)extlog_l1_addr)->flags &= ~FLAG_OS_OPTIN;
if (extlog_l1_addr)
- acpi_os_unmap_memory(extlog_l1_addr, l1_size);
+ acpi_os_unmap_iomem(extlog_l1_addr, l1_size);
if (elog_addr)
- acpi_os_unmap_memory(elog_addr, elog_size);
+ acpi_os_unmap_iomem(elog_addr, elog_size);
release_mem_region(elog_base, elog_size);
release_mem_region(l1_dirbase, l1_size);
kfree(elog_buf);
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-14 00:11:16 +0000