162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0-only 262306a36Sopenharmony_ci#include <linux/types.h> 362306a36Sopenharmony_ci#include <linux/export.h> 462306a36Sopenharmony_ci#include <asm/cpu.h> 562306a36Sopenharmony_ci 662306a36Sopenharmony_ciunsigned int x86_family(unsigned int sig) 762306a36Sopenharmony_ci{ 862306a36Sopenharmony_ci unsigned int x86; 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ci x86 = (sig >> 8) & 0xf; 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_ci if (x86 == 0xf) 1362306a36Sopenharmony_ci x86 += (sig >> 20) & 0xff; 1462306a36Sopenharmony_ci 1562306a36Sopenharmony_ci return x86; 1662306a36Sopenharmony_ci} 1762306a36Sopenharmony_ciEXPORT_SYMBOL_GPL(x86_family); 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_ciunsigned int x86_model(unsigned int sig) 2062306a36Sopenharmony_ci{ 2162306a36Sopenharmony_ci unsigned int fam, model; 2262306a36Sopenharmony_ci 2362306a36Sopenharmony_ci fam = x86_family(sig); 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_ci model = (sig >> 4) & 0xf; 2662306a36Sopenharmony_ci 2762306a36Sopenharmony_ci if (fam >= 0x6) 2862306a36Sopenharmony_ci model += ((sig >> 16) & 0xf) << 4; 2962306a36Sopenharmony_ci 3062306a36Sopenharmony_ci return model; 3162306a36Sopenharmony_ci} 3262306a36Sopenharmony_ciEXPORT_SYMBOL_GPL(x86_model); 3362306a36Sopenharmony_ci 3462306a36Sopenharmony_ciunsigned int x86_stepping(unsigned int sig) 3562306a36Sopenharmony_ci{ 3662306a36Sopenharmony_ci return sig & 0xf; 3762306a36Sopenharmony_ci} 3862306a36Sopenharmony_ciEXPORT_SYMBOL_GPL(x86_stepping); 39