xref: /openbmc/linux/arch/x86/lib/cpu.c (revision 8c749ce9)
1 #include <linux/module.h>
2 
3 unsigned int x86_family(unsigned int sig)
4 {
5 	unsigned int x86;
6 
7 	x86 = (sig >> 8) & 0xf;
8 
9 	if (x86 == 0xf)
10 		x86 += (sig >> 20) & 0xff;
11 
12 	return x86;
13 }
14 EXPORT_SYMBOL_GPL(x86_family);
15 
16 unsigned int x86_model(unsigned int sig)
17 {
18 	unsigned int fam, model;
19 
20 	 fam = x86_family(sig);
21 
22 	model = (sig >> 4) & 0xf;
23 
24 	if (fam >= 0x6)
25 		model += ((sig >> 16) & 0xf) << 4;
26 
27 	return model;
28 }
29 EXPORT_SYMBOL_GPL(x86_model);
30 
31 unsigned int x86_stepping(unsigned int sig)
32 {
33 	return sig & 0xf;
34 }
35 EXPORT_SYMBOL_GPL(x86_stepping);
36