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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2013 Google Inc.
* Copyright (C) 2015-2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <stdint.h>
#include <cpu/x86/msr.h>
#include <cpu/x86/tsc.h>
#include <timer.h>
unsigned long tsc_freq_mhz(void)
{
/* CPU freq = 400 MHz */
return 400;
}
void timer_monotonic_get(struct mono_time *mt)
{
uint64_t tsc_value;
tsc_value = rdtscll();
mt->microseconds = tsc_value / tsc_freq_mhz();
}
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