boot_state: Reduce precision of reported times
When diffing boot logs, lines reporting times spent in each boot_state always get highlighed due the little fluctuation in microsecond-scale. Reduce the logged precision to milliseconds to avoid that. Change-Id: I7a27d6c250d8432131f30e9a4869cb45ad75d9fd Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36528 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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@ -23,6 +23,7 @@
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#include <bootstate.h>
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#include <console/console.h>
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#include <console/post_codes.h>
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#include <commonlib/helpers.h>
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#include <cbmem.h>
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#include <version.h>
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#include <device/device.h>
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@ -256,7 +257,12 @@ static void bs_report_time(struct boot_state *state)
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run_time = mono_time_diff_microseconds(&samples[1], &samples[2]);
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exit_time = mono_time_diff_microseconds(&samples[2], &samples[3]);
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printk(BIOS_DEBUG, "BS: %s times (us): entry %ld run %ld exit %ld\n",
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/* Report with millisecond precision to reduce log diffs. */
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entry_time = DIV_ROUND_CLOSEST(entry_time, USECS_PER_MSEC);
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run_time = DIV_ROUND_CLOSEST(run_time, USECS_PER_MSEC);
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exit_time = DIV_ROUND_CLOSEST(exit_time, USECS_PER_MSEC);
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printk(BIOS_DEBUG, "BS: %s times (ms): entry %ld run %ld exit %ld\n",
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state->name, entry_time, run_time, exit_time);
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}
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#else
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