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drivers/elog/elog: Add timestamps to elog_init

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elog init requires doing a lot of SPI transactions. This change makes it
clear how long we spend initializing elog.

BUG=b:179699789
TEST=Boot guybrush and see elog init timestamps
 114:started elog init                                3,029,116 (88)
 115:finished elog init                               3,071,281 (42,165)

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: Ia92372dd76535e06eb3b8a08b53e80ddb38b7a8f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58957
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Raul E Rangel
2021-11-03 16:53:40 -06:00
committed by Paul Fagerburg
parent 61c9cd9890
commit dc45951e88
2 changed files with 12 additions and 0 deletions
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8
src/drivers/elog/elog.c
View File

@@ -16,6 +16,7 @@
#include <smbios.h>
#include <stdint.h>
#include <string.h>
#include <timestamp.h>
#define ELOG_MIN_AVAILABLE_ENTRIES 2 /* Shrink when this many can't fit */
#define ELOG_SHRINK_PERCENTAGE 25 /* Percent of total area to remove */
@@ -749,6 +750,9 @@ int elog_init(void)
}
elog_state.elog_initialized = ELOG_BROKEN;
if (!ENV_SMM)
timestamp_add_now(TS_ELOG_INIT_START);
elog_debug("%s()\n", __func__);
/* Set up the backing store */
@@ -781,6 +785,10 @@ int elog_init(void)
if (ENV_PAYLOAD_LOADER)
elog_add_boot_count();
if (!ENV_SMM)
timestamp_add_now(TS_ELOG_INIT_END);
return 0;
}