/*
 * 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 2005 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

	.ident	"%Z%%M%	%I%	%E% SMI"

	.file	"%M%"

#define	_ASM
#include <sys/asm_linkage.h>

	ENTRY(atomic_add_64_nv)
add_64:
	ldx	[%o0], %o2
1:
	add	%o2, %o1, %o3
	casx	[%o0], %o2, %o3
	cmp	%o2, %o3
	bne,a,pn %xcc, 1b
	  mov	%o3, %o2
	retl
	add	%o2, %o1, %o0		! return new value
	SET_SIZE(atomic_add_64_nv)

	ENTRY(atomic_or_8)
	ALTENTRY(atomic_or_8_nv)
	and	%o0, 0x3, %o4		! %o4 = byte offset, left-to-right
	xor	%o4, 0x3, %g1		! %g1 = byte offset, right-to-left
	sll	%g1, 3, %g1		! %g1 = bit offset, right-to-left
	set	0xff, %o3		! %o3 = mask
	sll	%o3, %g1, %o3		! %o3 = shifted to bit offset
	sll	%o1, %g1, %o1		! %o1 = shifted to bit offset
	and	%o1, %o3, %o1		! %o1 = single byte value
	andn	%o0, 0x3, %o0		! %o0 = word address
	ld	[%o0], %o2		! read old value
1:
	or	%o2, %o1, %o5		! or in the new value
	cas	[%o0], %o2, %o5
	cmp	%o2, %o5
	bne,a,pn %icc, 1b
	  mov	%o5, %o2		! %o2 = old value
	or	%o2, %o1, %o5
	and	%o5, %o3, %o5
	retl
	srl	%o5, %g1, %o0		! %o0 = new value
	SET_SIZE(atomic_or_8_nv)
	SET_SIZE(atomic_or_8)

	ENTRY(membar_producer)
	membar	#StoreStore
	retl
	nop
	SET_SIZE(membar_producer)