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arch/x86/postcar: Add separate timestamp for postcar stage 

This patch adds dedicated timestamp value for postcar stage.

TEST=Able to see "start of postcar" and "end of postcar" timestamp
while executing cbmem -t after booting to chrome console.

> cbmem -t
951:returning from FspMemoryInit                     20,485,324 (20,103,067)
   4:end of romstage                                 20,559,235 (73,910)
100:start of postcar                                 20,560,266 (1,031)
101:end of postcar                                   20,570,038 (9,772)

Change-Id: I084f66949667ad598f811d4233b4e639bc4c113e
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31762
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Subrata Banik 2019-03-05 16:45:14 +05:30 committed by Patrick Georgi
parent 34508cd9ac
commit 4f42eead36
3 changed files with 10 additions and 0 deletions
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3
src/arch/x86/postcar.c
View File

@ -19,6 +19,7 @@
#include <cpu/x86/mtrr.h>
#include <main_decl.h>
#include <program_loading.h>
#include <timestamp.h>
/*
* Systems without a native coreboot cache-as-ram teardown may implement
@ -35,6 +36,8 @@ void main(void)
/* Recover cbmem so infrastruture using it is functional. */
cbmem_initialize();
timestamp_add_now(TS_START_POSTCAR);
display_mtrrs();
/* Load and run ramstage. */

4
src/commonlib/include/commonlib/timestamp_serialized.h
View File

@ -63,6 +63,8 @@ enum timestamp_id {
TS_LOAD_PAYLOAD = 90,
TS_ACPI_WAKE_JUMP = 98,
TS_SELFBOOT_JUMP = 99,
TS_START_POSTCAR = 100,
TS_END_POSTCAR = 101,
/* 500+ reserved for vendorcode extensions (500-600: google/chromeos) */
TS_START_COPYVER = 501,
@ -257,6 +259,8 @@ static const struct timestamp_id_to_name {
{ TS_FSP_BEFORE_END_OF_FIRMWARE, "calling FspNotify(EndOfFirmware)" },
{ TS_FSP_AFTER_END_OF_FIRMWARE,
"returning from FspNotify(EndOfFirmware)" },
{ TS_START_POSTCAR, "start of postcar" },
{ TS_END_POSTCAR, "end of postcar" },
};
#endif

3
src/lib/prog_loaders.c
View File

@ -128,6 +128,9 @@ void run_ramstage(void)
struct prog ramstage =
PROG_INIT(PROG_RAMSTAGE, CONFIG_CBFS_PREFIX "/ramstage");
if (ENV_POSTCAR)
timestamp_add_now(TS_END_POSTCAR);
timestamp_add_now(TS_END_ROMSTAGE);
/*