diff options
| author | Tyler Baicar <tbaicar@codeaurora.org> | 2017-06-21 12:17:06 -0600 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2017-06-22 15:43:47 +0100 |
| commit | 8a94471fb73fd53589746561a2dba29e073ed829 (patch) | |
| tree | 29cbf4cfb5e1f2c5066dd47f5ca5bf8504ce04dc /drivers/firmware | |
| parent | bbcc2e7b642ed241651fee50ac6ed59643cb1736 (diff) | |
| download | lwn-8a94471fb73fd53589746561a2dba29e073ed829.tar.gz lwn-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')
| -rw-r--r-- | drivers/firmware/efi/cper.c | 26 |
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)); |