intel/asm/htable.h

	htable.h revision 6b7143d774683daf27dfb2e93ab48d1ade1a3477
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (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 2004 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef _ASM_HTABLE_H
#define _ASM_HTABLE_H

#include <sys/ccompile.h>
#include <sys/types.h>

#ifdef  __cplusplus
extern "C" {
#endif

#if !defined(__lint) && defined(__GNUC__)

#if defined(__i386) || defined(__amd64)

/*
 * This set of atomic operations are designed primarily
 * for some ia32 hat layer operations.
 */

extern __GNU_INLINE void
atomic_orb(uint8_t *addr, uint8_t value)
{
    __asm__ __volatile__(
        "lock; orb %%dl,%0"
        : "=m" (*addr)
        : "d" (value), "m" (*addr)
        : "cc");
}

extern __GNU_INLINE void
atomic_andb(uint8_t *addr, uint8_t value)
{
    __asm__ __volatile__(
        "lock; andb %%dl,%0"
        : "=m" (*addr)
        : "d" (value), "m" (*addr)
        : "cc");
}

extern __GNU_INLINE void
atomic_inc16(uint16_t *addr)
{
    __asm__ __volatile__(
        "lock; incw %0"
        : "=m" (*addr)
        : "m" (*addr)
        : "cc");
}

extern __GNU_INLINE void
atomic_dec16(uint16_t *addr)
{
    __asm__ __volatile__(
        "lock; decw %0"
        : "=m" (*addr)
        : "m" (*addr)
        : "cc");
}

extern __GNU_INLINE void
mmu_tlbflush_entry(caddr_t addr)
{
    __asm__ __volatile__(
        "invlpg %0"
        : "=m" (*addr)
        : "m" (*addr));
}

#endif  /* __i386 || __amd64 */

#endif  /* !__lint && __GNUC__ */

#ifdef  __cplusplus
}
#endif

#endif  /* _ASM_HTABLE_H */