diff options
Diffstat (limited to 'src/cpu/x86')
| -rw-r--r-- | src/cpu/x86/lapic/apic_timer.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/src/cpu/x86/lapic/apic_timer.c b/src/cpu/x86/lapic/apic_timer.c index 58836b5e3f..8f0f7afcfb 100644 --- a/src/cpu/x86/lapic/apic_timer.c +++ b/src/cpu/x86/lapic/apic_timer.c @@ -16,7 +16,6 @@ #include <delay.h> #include <thread.h> #include <arch/cpu.h> -#include <arch/early_variables.h> #include <cpu/x86/msr.h> #include <cpu/x86/lapic.h> @@ -63,18 +62,15 @@ static struct monotonic_counter { int initialized; struct mono_time time; uint32_t last_value; -} mono_counter_g CAR_GLOBAL; +} mono_counter_g; void timer_monotonic_get(struct mono_time *mt) { uint32_t current_tick; uint32_t usecs_elapsed; uint32_t timer_fsb; - struct monotonic_counter *mono_counter; - mono_counter = car_get_var_ptr(&mono_counter_g); - - if (!mono_counter->initialized) { + if (!mono_counter_g.initialized) { init_timer(); timer_fsb = get_timer_fsb(); /* An FSB frequency of 200Mhz provides a 20 second polling @@ -84,22 +80,22 @@ void timer_monotonic_get(struct mono_time *mt) printk(BIOS_WARNING, "apic timer freq (%d) may be too fast.\n", timer_fsb); - mono_counter->last_value = lapic_read(LAPIC_TMCCT); - mono_counter->initialized = 1; + mono_counter_g.last_value = lapic_read(LAPIC_TMCCT); + mono_counter_g.initialized = 1; } timer_fsb = get_timer_fsb(); current_tick = lapic_read(LAPIC_TMCCT); /* Note that the APIC timer counts down. */ - usecs_elapsed = (mono_counter->last_value - current_tick) / timer_fsb; + usecs_elapsed = (mono_counter_g.last_value - current_tick) / timer_fsb; /* 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; + mono_time_add_usecs(&mono_counter_g.time, usecs_elapsed); + mono_counter_g.last_value = current_tick; } /* Save result. */ - *mt = mono_counter->time; + *mt = mono_counter_g.time; } #endif |