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Added cpuid instruction.

This commit is contained in:
KATO Takenori 1998-01-25 17:02:00 +00:00
parent 2f5a8c876a
commit 31e6b13443
2 changed files with 20 additions and 2 deletions
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11
sys/amd64/include/cpufunc.h
View File

@ -30,7 +30,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: cpufunc.h,v 1.73 1997/12/14 02:11:23 dyson Exp $
* $Id: cpufunc.h,v 1.74 1998/01/15 07:32:55 gibbs Exp $
*/
/*
@ -57,6 +57,14 @@ breakpoint(void)
__asm __volatile("int $3");
}
static __inline void
cpuid(u_int *eax, u_int *ebx, u_int *ecx, u_int *edx)
{
__asm __volatile(".byte 0x0f, 0xa2"
: "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx)
: "a" (*eax));
}
static __inline void
disable_intr(void)
{
@ -395,6 +403,7 @@ wrmsr(u_int msr, quad_t newval)
#else /* !__GNUC__ */
int breakpoint __P((void));
void cpuid __P((u_int *eax, u_int *ebx, u_int *ecx, u_int *edx));
void disable_intr __P((void));
void enable_intr __P((void));
u_char inb __P((u_int port));

11
sys/i386/include/cpufunc.h
View File

@ -30,7 +30,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: cpufunc.h,v 1.73 1997/12/14 02:11:23 dyson Exp $
* $Id: cpufunc.h,v 1.74 1998/01/15 07:32:55 gibbs Exp $
*/
/*
@ -57,6 +57,14 @@ breakpoint(void)
__asm __volatile("int $3");
}
static __inline void
cpuid(u_int *eax, u_int *ebx, u_int *ecx, u_int *edx)
{
__asm __volatile(".byte 0x0f, 0xa2"
: "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx)
: "a" (*eax));
}
static __inline void
disable_intr(void)
{
@ -395,6 +403,7 @@ wrmsr(u_int msr, quad_t newval)
#else /* !__GNUC__ */
int breakpoint __P((void));
void cpuid __P((u_int *eax, u_int *ebx, u_int *ecx, u_int *edx));
void disable_intr __P((void));
void enable_intr __P((void));
u_char inb __P((u_int port));