5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
39 lines
624 B
C
39 lines
624 B
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
#include <linux/types.h>
|
|
#include <linux/export.h>
|
|
#include <asm/cpu.h>
|
|
|
|
unsigned int x86_family(unsigned int sig)
|
|
{
|
|
unsigned int x86;
|
|
|
|
x86 = (sig >> 8) & 0xf;
|
|
|
|
if (x86 == 0xf)
|
|
x86 += (sig >> 20) & 0xff;
|
|
|
|
return x86;
|
|
}
|
|
EXPORT_SYMBOL_GPL(x86_family);
|
|
|
|
unsigned int x86_model(unsigned int sig)
|
|
{
|
|
unsigned int fam, model;
|
|
|
|
fam = x86_family(sig);
|
|
|
|
model = (sig >> 4) & 0xf;
|
|
|
|
if (fam >= 0x6)
|
|
model += ((sig >> 16) & 0xf) << 4;
|
|
|
|
return model;
|
|
}
|
|
EXPORT_SYMBOL_GPL(x86_model);
|
|
|
|
unsigned int x86_stepping(unsigned int sig)
|
|
{
|
|
return sig & 0xf;
|
|
}
|
|
EXPORT_SYMBOL_GPL(x86_stepping);
|