diff options
Diffstat (limited to 'src/soc/intel/broadwell/cpu_info.c')
-rw-r--r-- | src/soc/intel/broadwell/cpu_info.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/soc/intel/broadwell/cpu_info.c b/src/soc/intel/broadwell/cpu_info.c new file mode 100644 index 0000000000..a13ca94d42 --- /dev/null +++ b/src/soc/intel/broadwell/cpu_info.c @@ -0,0 +1,52 @@ +/* + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <console/console.h> +#include <cpu/cpu.h> +#include <cpu/x86/msr.h> +#include <broadwell/cpu.h> +#include <broadwell/msr.h> +#include <broadwell/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; +} |