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drivers/mrc_cache: generate debug messages for MRC cache update 

When MRC cached data update is performed, messages are written to
event log, which is flash based. For system that does not have flash
based event log, the messages are lost.

Added corresponding BIOS_DEBUG messages.

Signed-off-by: Jonathan Zhang <jonzhang@fb.com>
Change-Id: I1ef4794151fea7213c8317ddc898b0e37da280b5
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41981
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Michael Niewöhner
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Jonathan Zhang 2020-06-01 15:39:59 -07:00 committed by Patrick Georgi
parent a3e228ce15
commit 4b6b2609e5
1 changed files with 6 additions and 2 deletions
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8
src/drivers/mrc_cache/mrc_cache.c
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@ -397,6 +397,7 @@ static void update_mrc_cache_by_type(int type)
return;
if (!mrc_cache_needs_update(&latest_rdev, to_be_updated)) {
printk(BIOS_DEBUG, "MRC: '%s' does not need update.\n", cr->name);
log_event_cache_update(cr->elog_slot, ALREADY_UPTODATE);
return;
}
@ -405,11 +406,14 @@ static void update_mrc_cache_by_type(int type)
if (region_file_update_data(&cache_file,
cbmem_entry_start(to_be_updated),
cbmem_entry_size(to_be_updated)) < 0)
cbmem_entry_size(to_be_updated)) < 0) {
printk(BIOS_DEBUG, "MRC: failed to update '%s'.\n", cr->name);
log_event_cache_update(cr->elog_slot, UPDATE_FAILURE);
else
} else {
printk(BIOS_DEBUG, "MRC: updated '%s'.\n", cr->name);
log_event_cache_update(cr->elog_slot, UPDATE_SUCCESS);
}
}
/* Read flash status register to determine if write protect is active */
static int nvm_is_write_protected(void)