cpu/x86/lapic/apic_timer.c: Drop CAR_GLOBAL_MIGRATION support
Change-Id: Ideac1a04d6bb1a5e9cc601be7bbfcebe56b4a5da Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37050 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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@ -16,7 +16,6 @@
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#include <delay.h>
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#include <thread.h>
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#include <arch/cpu.h>
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#include <arch/early_variables.h>
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#include <cpu/x86/msr.h>
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#include <cpu/x86/lapic.h>
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@ -63,18 +62,15 @@ static struct monotonic_counter {
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int initialized;
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struct mono_time time;
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uint32_t last_value;
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} mono_counter_g CAR_GLOBAL;
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} mono_counter_g;
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void timer_monotonic_get(struct mono_time *mt)
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{
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uint32_t current_tick;
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uint32_t usecs_elapsed;
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uint32_t timer_fsb;
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struct monotonic_counter *mono_counter;
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mono_counter = car_get_var_ptr(&mono_counter_g);
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if (!mono_counter->initialized) {
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if (!mono_counter_g.initialized) {
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init_timer();
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timer_fsb = get_timer_fsb();
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/* An FSB frequency of 200Mhz provides a 20 second polling
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@ -84,22 +80,22 @@ void timer_monotonic_get(struct mono_time *mt)
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printk(BIOS_WARNING,
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"apic timer freq (%d) may be too fast.\n",
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timer_fsb);
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mono_counter->last_value = lapic_read(LAPIC_TMCCT);
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mono_counter->initialized = 1;
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mono_counter_g.last_value = lapic_read(LAPIC_TMCCT);
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mono_counter_g.initialized = 1;
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}
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timer_fsb = get_timer_fsb();
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current_tick = lapic_read(LAPIC_TMCCT);
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/* Note that the APIC timer counts down. */
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usecs_elapsed = (mono_counter->last_value - current_tick) / timer_fsb;
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usecs_elapsed = (mono_counter_g.last_value - current_tick) / timer_fsb;
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/* Update current time and tick values only if a full tick occurred. */
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if (usecs_elapsed) {
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mono_time_add_usecs(&mono_counter->time, usecs_elapsed);
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mono_counter->last_value = current_tick;
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mono_time_add_usecs(&mono_counter_g.time, usecs_elapsed);
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mono_counter_g.last_value = current_tick;
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}
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/* Save result. */
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*mt = mono_counter->time;
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*mt = mono_counter_g.time;
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}
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#endif
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