| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2007-2009 coresystems GmbH |
| * Copyright (C) 2014 Google Inc. |
| * Copyright (C) 2015 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 <console/console.h> |
| #include <cpu/cpu.h> |
| #include <cpu/x86/msr.h> |
| #include <soc/cpu.h> |
| #include <soc/msr.h> |
| #include <soc/ramstage.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 == SKYLAKE_FAMILY_ULT) |
| ult = 1; |
| else |
| ult = 0; |
| } |
| |
| return ult; |
| } |