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timestamp: Allow timestamp_add to accept a negative number

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Change timestamp_add to accept negative values for events that took
place before coreboot started executing.

TEST=Boot to OS, check cbmem -t

Signed-off-by: Bora Guvendik <bora.guvendik@intel.com>
Change-Id: I90afc13a8e92693d86e3358f05e0a0cb7cdbca9b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59554
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This commit is contained in:
Bora Guvendik 2021-11-22 16:03:39 -08:00 • committed by Felix Held
commit bf73c498d4
3 changed files with 5 additions and 5 deletions
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2
src/include/timestamp.h
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@ -19,7 +19,7 @@ void timestamp_init(uint64_t base);
* inside REGION(timestamp) before cbmem comes online. For later stages, timestamps
* added before cbmem_[recovery|initialize] calls will be lost.
*/
void timestamp_add(enum timestamp_id id, uint64_t ts_time);
void timestamp_add(enum timestamp_id id, int64_t ts_time);
/* Calls timestamp_add with current timestamp. */
void timestamp_add_now(enum timestamp_id id);