linux/arch/x86/kernel/cpu/centaur_64.c

38 lines
843 B
C

#include <linux/init.h>
#include <linux/smp.h>
#include <asm/cpufeature.h>
#include <asm/processor.h>
#include "cpu.h"
static void __cpuinit early_init_centaur(struct cpuinfo_x86 *c)
{
if (c->x86 == 0x6 && c->x86_model >= 0xf)
set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
set_cpu_cap(c, X86_FEATURE_SYSENTER32);
}
static void __cpuinit init_centaur(struct cpuinfo_x86 *c)
{
early_init_centaur(c);
if (c->x86 == 0x6 && c->x86_model >= 0xf) {
c->x86_cache_alignment = c->x86_clflush_size * 2;
set_cpu_cap(c, X86_FEATURE_REP_GOOD);
}
set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC);
}
static struct cpu_dev centaur_cpu_dev __cpuinitdata = {
.c_vendor = "Centaur",
.c_ident = { "CentaurHauls" },
.c_early_init = early_init_centaur,
.c_init = init_centaur,
.c_x86_vendor = X86_VENDOR_CENTAUR,
};
cpu_dev_register(centaur_cpu_dev);