2008-01-30 13:31:03 +01:00
|
|
|
#ifndef __ASM_X86_PROCESSOR_H
|
|
|
|
#define __ASM_X86_PROCESSOR_H
|
|
|
|
|
2008-01-30 13:31:27 +01:00
|
|
|
#include <asm/processor-flags.h>
|
|
|
|
|
2008-01-30 13:31:27 +01:00
|
|
|
#include <asm/page.h>
|
|
|
|
#include <asm/system.h>
|
|
|
|
|
2008-01-30 13:31:03 +01:00
|
|
|
static inline void native_cpuid(unsigned int *eax, unsigned int *ebx,
|
|
|
|
unsigned int *ecx, unsigned int *edx)
|
|
|
|
{
|
|
|
|
/* ecx is often an input as well as an output. */
|
|
|
|
__asm__("cpuid"
|
|
|
|
: "=a" (*eax),
|
|
|
|
"=b" (*ebx),
|
|
|
|
"=c" (*ecx),
|
|
|
|
"=d" (*edx)
|
|
|
|
: "0" (*eax), "2" (*ecx));
|
|
|
|
}
|
|
|
|
|
2008-01-30 13:31:27 +01:00
|
|
|
static inline void load_cr3(pgd_t *pgdir)
|
|
|
|
{
|
|
|
|
write_cr3(__pa(pgdir));
|
|
|
|
}
|
2008-01-30 13:31:03 +01:00
|
|
|
|
2007-10-11 11:20:03 +02:00
|
|
|
#ifdef CONFIG_X86_32
|
|
|
|
# include "processor_32.h"
|
|
|
|
#else
|
|
|
|
# include "processor_64.h"
|
|
|
|
#endif
|
2008-01-30 13:31:03 +01:00
|
|
|
|
|
|
|
#ifndef CONFIG_PARAVIRT
|
|
|
|
#define __cpuid native_cpuid
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Generic CPUID function
|
|
|
|
* clear %ecx since some cpus (Cyrix MII) do not set or clear %ecx
|
|
|
|
* resulting in stale register contents being returned.
|
|
|
|
*/
|
|
|
|
static inline void cpuid(unsigned int op,
|
|
|
|
unsigned int *eax, unsigned int *ebx,
|
|
|
|
unsigned int *ecx, unsigned int *edx)
|
|
|
|
{
|
|
|
|
*eax = op;
|
|
|
|
*ecx = 0;
|
|
|
|
__cpuid(eax, ebx, ecx, edx);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Some CPUID calls want 'count' to be placed in ecx */
|
|
|
|
static inline void cpuid_count(unsigned int op, int count,
|
|
|
|
unsigned int *eax, unsigned int *ebx,
|
|
|
|
unsigned int *ecx, unsigned int *edx)
|
|
|
|
{
|
|
|
|
*eax = op;
|
|
|
|
*ecx = count;
|
|
|
|
__cpuid(eax, ebx, ecx, edx);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* CPUID functions returning a single datum
|
|
|
|
*/
|
|
|
|
static inline unsigned int cpuid_eax(unsigned int op)
|
|
|
|
{
|
|
|
|
unsigned int eax, ebx, ecx, edx;
|
|
|
|
|
|
|
|
cpuid(op, &eax, &ebx, &ecx, &edx);
|
|
|
|
return eax;
|
|
|
|
}
|
|
|
|
static inline unsigned int cpuid_ebx(unsigned int op)
|
|
|
|
{
|
|
|
|
unsigned int eax, ebx, ecx, edx;
|
|
|
|
|
|
|
|
cpuid(op, &eax, &ebx, &ecx, &edx);
|
|
|
|
return ebx;
|
|
|
|
}
|
|
|
|
static inline unsigned int cpuid_ecx(unsigned int op)
|
|
|
|
{
|
|
|
|
unsigned int eax, ebx, ecx, edx;
|
|
|
|
|
|
|
|
cpuid(op, &eax, &ebx, &ecx, &edx);
|
|
|
|
return ecx;
|
|
|
|
}
|
|
|
|
static inline unsigned int cpuid_edx(unsigned int op)
|
|
|
|
{
|
|
|
|
unsigned int eax, ebx, ecx, edx;
|
|
|
|
|
|
|
|
cpuid(op, &eax, &ebx, &ecx, &edx);
|
|
|
|
return edx;
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif
|