1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only 2*4882a593Smuzhiyun #include <linux/types.h> 3*4882a593Smuzhiyun #include <linux/export.h> 4*4882a593Smuzhiyun #include <asm/cpu.h> 5*4882a593Smuzhiyun x86_family(unsigned int sig)6*4882a593Smuzhiyununsigned int x86_family(unsigned int sig) 7*4882a593Smuzhiyun { 8*4882a593Smuzhiyun unsigned int x86; 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun x86 = (sig >> 8) & 0xf; 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun if (x86 == 0xf) 13*4882a593Smuzhiyun x86 += (sig >> 20) & 0xff; 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun return x86; 16*4882a593Smuzhiyun } 17*4882a593Smuzhiyun EXPORT_SYMBOL_GPL(x86_family); 18*4882a593Smuzhiyun x86_model(unsigned int sig)19*4882a593Smuzhiyununsigned int x86_model(unsigned int sig) 20*4882a593Smuzhiyun { 21*4882a593Smuzhiyun unsigned int fam, model; 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun fam = x86_family(sig); 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun model = (sig >> 4) & 0xf; 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun if (fam >= 0x6) 28*4882a593Smuzhiyun model += ((sig >> 16) & 0xf) << 4; 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun return model; 31*4882a593Smuzhiyun } 32*4882a593Smuzhiyun EXPORT_SYMBOL_GPL(x86_model); 33*4882a593Smuzhiyun x86_stepping(unsigned int sig)34*4882a593Smuzhiyununsigned int x86_stepping(unsigned int sig) 35*4882a593Smuzhiyun { 36*4882a593Smuzhiyun return sig & 0xf; 37*4882a593Smuzhiyun } 38*4882a593Smuzhiyun EXPORT_SYMBOL_GPL(x86_stepping); 39