xref: /titanic_41/usr/src/uts/sun4u/io/pci/pcisch_asm.s (revision 9e86db79b7d1bbc5f2f04e99954cbd5eae0e22bb)
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#pragma	ident	"%Z%%M%	%I%	%E% SMI"
28
29#include <sys/asm_linkage.h>
30#include <sys/machthread.h>
31#include <sys/fsr.h>
32
33/*LINTLIBRARY*/
34
35#define	VIS_BLOCKSIZE	64
36
37#if defined(lint)
38
39void
40tomatillo_store_store_order()
41{}
42
43#else /* lint */
44
45	.seg    ".data"
46	.align  VIS_BLOCKSIZE
47	.type   sync_buf, #object
48sync_buf:
49	.skip   VIS_BLOCKSIZE
50	.size   sync_buf, VIS_BLOCKSIZE
51
52	ENTRY(tomatillo_store_store_order)
53	set	sync_buf, %o1
54
55	rd	%fprs, %o2			! %o2 = saved fprs
56	or	%o2, FPRS_FEF, %o3
57	wr	%g0, %o3, %fprs			! make sure fp is enabled
58	stda    %d0, [%o1]ASI_BLK_COMMIT_P
59	wr	%o2, 0, %fprs			! restore fprs
60
61	retl
62	membar  #Sync
63	SET_SIZE(tomatillo_store_store_order)
64
65#endif /* lint */
66