xref: /illumos-gate/usr/src/uts/sun4v/io/n2piupc/n2piupc_asm.S (revision 0ccfe5834c3b867c1b6c273cae02ec8922bc0fd2)
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 (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27/*
28 * Assembly language support for the n2piupc N2 PIU performance counter driver.
29 */
30
31#include <sys/asm_linkage.h>
32#include <sys/hypervisor_api.h>
33#include "n2piupc_acc.h"
34
35/*LINTLIBRARY*/
36
37	ENTRY(n2piupc_get_perfreg)
38	mov	N2PIU_GET_PERFREG, %o5
39	ta	FAST_TRAP
40	brz,a	%o0, 1f
41	stx	%o1, [%o2]
421:	retl
43	nop
44	SET_SIZE(n2piupc_get_perfreg)
45
46	ENTRY(n2piupc_set_perfreg)
47	mov	N2PIU_SET_PERFREG, %o5
48	ta	FAST_TRAP
49	retl
50	nop
51	SET_SIZE(n2piupc_set_perfreg)
52
53