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| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2019-11-02 14:12:18 +0200 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-11-11 10:31:29 +0000 |
| commit | 45ddb4344f73051855da6d4e87a5ba4b4c66af71 (patch) | |
| tree | 1a62d88791bb5ff4ead56d395925829b69a84e54 /src/lib/hardwaremain.c | |
| parent | 19825e8e375d1c4d0448e7ffe3bb2e2c230c9eea (diff) | |
| download | coreboot-45ddb4344f73051855da6d4e87a5ba4b4c66af71.tar.xz | |
console,boot_state: Exclude printk() from reported times
Use monotonic timer to accumulate the time spent in
console code.
For bootblock and romstage, only stage total is reported.
For ramstage each boot_state is reported individually.
Change-Id: Id3998bab553ff803a93257a3f2c7bfea44c31729
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36574
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Diffstat (limited to 'src/lib/hardwaremain.c')
| -rw-r--r-- | src/lib/hardwaremain.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/lib/hardwaremain.c b/src/lib/hardwaremain.c index 51ff330d84..3fcf8829f3 100644 --- a/src/lib/hardwaremain.c +++ b/src/lib/hardwaremain.c @@ -63,6 +63,7 @@ static boot_state_t bs_payload_boot(void *arg); struct boot_state_times { int num_samples; struct mono_time samples[MAX_TIME_SAMPLES]; + long console_usecs[MAX_TIME_SAMPLES]; }; /* The prologue (BS_ON_ENTRY) and epilogue (BS_ON_EXIT) of a state can be @@ -241,6 +242,9 @@ static void bs_sample_time(struct boot_state *state) { struct mono_time *mt; + long console_usecs = console_time_get_and_reset(); + state->times.console_usecs[state->times.num_samples] = console_usecs; + mt = &state->times.samples[state->times.num_samples]; timer_monotonic_get(mt); state->times.num_samples++; @@ -257,6 +261,10 @@ static void bs_report_time(struct boot_state *state) run_time = mono_time_diff_microseconds(&samples[1], &samples[2]); exit_time = mono_time_diff_microseconds(&samples[2], &samples[3]); + entry_time -= state->times.console_usecs[1]; + run_time -= state->times.console_usecs[2]; + exit_time -= state->times.console_usecs[3]; + /* Report with millisecond precision to reduce log diffs. */ entry_time = DIV_ROUND_CLOSEST(entry_time, USECS_PER_MSEC); run_time = DIV_ROUND_CLOSEST(run_time, USECS_PER_MSEC); |