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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _ASM_CPU_H
#define _ASM_CPU_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
#if !defined(__lint) && defined(__GNUC__)
#if defined(__i386) || defined(__amd64)
extern __inline__ void ht_pause(void)
{
__asm__ __volatile__(
"pause");
}
#if !defined(__xpv)
extern __inline__ void cli(void)
{
__asm__ __volatile__(
"cli" : : : "memory");
}
extern __inline__ void sti(void)
{
__asm__ __volatile__(
"sti");
}
extern __inline__ void i86_halt(void)
{
__asm__ __volatile__(
"sti; hlt");
}
#endif /* !__xpv */
#endif /* __i386 || defined(__amd64) */
#if defined(__amd64)
extern __inline__ void __set_ds(selector_t value)
{
__asm__ __volatile__(
"movw %0, %%ds"
: /* no output */
: "r" (value));
}
extern __inline__ void __set_es(selector_t value)
{
__asm__ __volatile__(
"movw %0, %%es"
: /* no output */
: "r" (value));
}
extern __inline__ void __set_fs(selector_t value)
{
__asm__ __volatile__(
"movw %0, %%fs"
: /* no output */
: "r" (value));
}
extern __inline__ void __set_gs(selector_t value)
{
__asm__ __volatile__(
"movw %0, %%gs"
: /* no output */
: "r" (value));
}
#if !defined(__xpv)
extern __inline__ void __swapgs(void)
{
__asm__ __volatile__(
"mfence; swapgs");
}
#endif /* !__xpv */
#endif /* __amd64 */
#endif /* !__lint && __GNUC__ */
#ifdef __cplusplus
}
#endif
#endif /* _ASM_CPU_H */
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