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Commit 8a94471f authored by Tyler Baicar's avatar Tyler Baicar Committed by Will Deacon
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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: default avatarTyler Baicar <tbaicar@codeaurora.org>
CC: Jonathan (Zhixiong) Zhang <zjzhang@codeaurora.org>
Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
parent bbcc2e7b

drivers/firmware/efi/cper.c

+26 −0
Original line number Diff line number Diff line
@@ -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));