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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007-2009 coresystems GmbH
* Copyright (C) 2014 Google Inc.
*
* 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 <arch/cpu.h>
#include <cpu/x86/msr.h>
#include <soc/cpu.h>
#include <soc/msr.h>
#include <soc/systemagent.h>
u32 cpu_family_model(void)
{
return cpuid_eax(1) & 0x0fff0ff0;
}
u32 cpu_stepping(void)
{
return cpuid_eax(1) & 0xf;
}
/* Dynamically determine if the part is ULT. */
int cpu_is_ult(void)
{
static int ult = -1;
if (ult < 0) {
u32 fm = cpu_family_model();
if (fm == BROADWELL_FAMILY_ULT || fm == HASWELL_FAMILY_ULT)
ult = 1;
else
ult = 0;
}
return ult;
}
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