The ACPI 6.1 spec added a timestamp to the HEST generic data
structure. Print the timestamp out when printing out the error
status information.
Signed-off-by: Tyler Baicar <tbaicar@xxxxxxxxxxxxxx>
CC: Jonathan (Zhixiong) Zhang <zjzhang@xxxxxxxxxxxxxx>
Reviewed-by: James Morse <james.morse@xxxxxxx>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
---
drivers/firmware/efi/cper.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/drivers/firmware/efi/cper.c b/drivers/firmware/efi/cper.c
index 8328a6f..46585f9 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 +389,29 @@ 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_estatus_timestamp(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]);
+
+ if (*(timestamp + 3) & 0x1)
+ printk("%stimestamp is precise\n", pfx);
+
+ printk("%stime: %02d%02d-%02d-%02d %02d:%02d:%02d\n", pfx,
+ 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 +420,9 @@ static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie,
__u16 severity;
char newpfx[64];
+ if (acpi_hest_get_version(gdata) >= 3)
+ cper_estatus_timestamp(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));
--
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Qualcomm Technologies, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project.
