xref: /illumos-gate/usr/src/uts/sun4u/io/pci/pcisch_asm.S (revision 5d9d9091f564c198a760790b0bfa72c44e17912b)
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#include <sys/asm_linkage.h>
28#include <sys/machthread.h>
29#include <sys/fsr.h>
30
31/*LINTLIBRARY*/
32
33#define	VIS_BLOCKSIZE	64
34
35	.seg    ".data"
36	.align  VIS_BLOCKSIZE
37	.type   sync_buf, #object
38sync_buf:
39	.skip   VIS_BLOCKSIZE
40	.size   sync_buf, VIS_BLOCKSIZE
41
42	ENTRY(tomatillo_store_store_order)
43	set	sync_buf, %o1
44
45	rd	%fprs, %o2			! %o2 = saved fprs
46	or	%o2, FPRS_FEF, %o3
47	wr	%g0, %o3, %fprs			! make sure fp is enabled
48	stda    %d0, [%o1]ASI_BLK_COMMIT_P
49	wr	%o2, 0, %fprs			! restore fprs
50
51	retl
52	membar  #Sync
53	SET_SIZE(tomatillo_store_store_order)
54
55