e9a0130879
Change-Id: I40f8b4c7cbc55e16929b1f40d18bb5a9c19845da Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/29289 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2007-2009 coresystems GmbH
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* Copyright (C) 2014 Google Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <arch/cpu.h>
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#include <cpu/x86/msr.h>
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#include <soc/cpu.h>
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#include <soc/msr.h>
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#include <soc/systemagent.h>
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u32 cpu_family_model(void)
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{
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return cpuid_eax(1) & 0x0fff0ff0;
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}
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u32 cpu_stepping(void)
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{
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return cpuid_eax(1) & 0xf;
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}
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/* Dynamically determine if the part is ULT. */
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int cpu_is_ult(void)
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{
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static int ult = -1;
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if (ult < 0) {
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u32 fm = cpu_family_model();
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if (fm == BROADWELL_FAMILY_ULT || fm == HASWELL_FAMILY_ULT)
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ult = 1;
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else
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ult = 0;
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}
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return ult;
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}
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