diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/intel/skylake/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/soc/intel/skylake/monotonic_timer.c | 27 |
2 files changed, 3 insertions, 25 deletions
diff --git a/src/soc/intel/skylake/Makefile.inc b/src/soc/intel/skylake/Makefile.inc index defb94502b..3bd9823738 100644 --- a/src/soc/intel/skylake/Makefile.inc +++ b/src/soc/intel/skylake/Makefile.inc @@ -13,6 +13,7 @@ subdirs-y += ../../../cpu/x86/tsc romstage-y += flash_controller.c romstage-y += gpio.c romstage-y += memmap.c +romstage-y += monotonic_timer.c romstage-y += pch.c romstage-y += pcr.c romstage-y += pei_data.c diff --git a/src/soc/intel/skylake/monotonic_timer.c b/src/soc/intel/skylake/monotonic_timer.c index 35ad911168..55430ef2b1 100644 --- a/src/soc/intel/skylake/monotonic_timer.c +++ b/src/soc/intel/skylake/monotonic_timer.c @@ -23,12 +23,6 @@ #include <timer.h> #include <soc/msr.h> -static struct monotonic_counter { - int initialized; - struct mono_time time; - uint32_t last_value; -} mono_counter; - static inline uint32_t read_counter_msr(void) { /* @@ -44,23 +38,6 @@ static inline uint32_t read_counter_msr(void) void timer_monotonic_get(struct mono_time *mt) { - uint32_t current_tick; - uint32_t usecs_elapsed; - - if (!mono_counter.initialized) { - mono_counter.last_value = read_counter_msr(); - mono_counter.initialized = 1; - } - - current_tick = read_counter_msr(); - usecs_elapsed = (current_tick - mono_counter.last_value) / 24; - - /* Update current time and tick values only if a full tick occurred. */ - if (usecs_elapsed) { - mono_time_add_usecs(&mono_counter.time, usecs_elapsed); - mono_counter.last_value = current_tick; - } - - /* Save result. */ - *mt = mono_counter.time; + /* Always increases. Don't normalize to 0 between stages. */ + mono_time_set_usecs(mt, read_counter_msr() / 24); } |