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authorTyler Baicar <tbaicar@codeaurora.org>2017-06-21 20:17:06 +0200
committerWill Deacon <will.deacon@arm.com>2017-06-22 16:43:47 +0200
commit8a94471fb73fd53589746561a2dba29e073ed829 (patch)
tree29cbf4cfb5e1f2c5066dd47f5ca5bf8504ce04dc /drivers/firmware/efi/cper.c
parentras: acpi/apei: cper: add support for generic data v3 structure (diff)
downloadlinux-8a94471fb73fd53589746561a2dba29e073ed829.tar.xz
linux-8a94471fb73fd53589746561a2dba29e073ed829.zip
cper: add timestamp print to CPER status printing
The ACPI 6.1 spec added a timestamp to the generic error data entry structure. Print the timestamp out when printing out the error information. Signed-off-by: Tyler Baicar <tbaicar@codeaurora.org> CC: Jonathan (Zhixiong) Zhang <zjzhang@codeaurora.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'drivers/firmware/efi/cper.c')
-rw-r--r--drivers/firmware/efi/cper.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/firmware/efi/cper.c b/drivers/firmware/efi/cper.c
index 902475704311..229cf9277524 100644
--- a/drivers/firmware/efi/cper.c
+++ b/drivers/firmware/efi/cper.c
@@ -32,6 +32,8 @@
#include <linux/acpi.h>
#include <linux/pci.h>
#include <linux/aer.h>
+#include <linux/printk.h>
+#include <linux/bcd.h>
#include <acpi/ghes.h>
#define INDENT_SP " "
@@ -387,6 +389,27 @@ static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie,
pfx, pcie->bridge.secondary_status, pcie->bridge.control);
}
+static void cper_print_tstamp(const char *pfx,
+ struct acpi_hest_generic_data_v300 *gdata)
+{
+ __u8 hour, min, sec, day, mon, year, century, *timestamp;
+
+ if (gdata->validation_bits & ACPI_HEST_GEN_VALID_TIMESTAMP) {
+ timestamp = (__u8 *)&(gdata->time_stamp);
+ sec = bcd2bin(timestamp[0]);
+ min = bcd2bin(timestamp[1]);
+ hour = bcd2bin(timestamp[2]);
+ day = bcd2bin(timestamp[4]);
+ mon = bcd2bin(timestamp[5]);
+ year = bcd2bin(timestamp[6]);
+ century = bcd2bin(timestamp[7]);
+
+ printk("%s%ststamp: %02d%02d-%02d-%02d %02d:%02d:%02d\n", pfx,
+ (timestamp[3] & 0x1 ? "precise " : "imprecise "),
+ century, year, mon, day, hour, min, sec);
+ }
+}
+
static void
cper_estatus_print_section(const char *pfx, struct acpi_hest_generic_data *gdata,
int sec_no)
@@ -395,6 +418,9 @@ cper_estatus_print_section(const char *pfx, struct acpi_hest_generic_data *gdata
__u16 severity;
char newpfx[64];
+ if (acpi_hest_get_version(gdata) >= 3)
+ cper_print_tstamp(pfx, (struct acpi_hest_generic_data_v300 *)gdata);
+
severity = gdata->error_severity;
printk("%s""Error %d, type: %s\n", pfx, sec_no,
cper_severity_str(severity));