xref: /titanic_52/usr/src/uts/sun4v/io/iospc/rfios_asm.s (revision 25c28e83beb90e7c80452a7c818c5e6f73a07dc8)
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 2009 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27/*
28 * Assembly language support for the iospc IO performance counter driver.
29 */
30
31#include <sys/asm_linkage.h>
32#include <sys/hypervisor_api.h>
33#include "rfios_acc.h"
34
35/*LINTLIBRARY*/
36
37#if defined(lint)
38
39/*ARGSUSED*/
40int
41rfiospc_get_perfreg(cntr_handle_t handle, int regid, uint64_t *data)
42{ return (0); }
43
44/*ARGSUSED*/
45int
46rfiospc_set_perfreg(cntr_handle_t handle, int regid, uint64_t data)
47{ return (0); }
48
49#else /* lint */
50
51	ENTRY(rfiospc_get_perfreg)
52	mov	RFIOS_GET_PERFREG, %o5
53	ta	FAST_TRAP
54	brz,a	%o0, 1f
55	stx	%o1, [%o2]
561:	retl
57	nop
58	SET_SIZE(rfiospc_get_perfreg)
59
60	ENTRY(rfiospc_set_perfreg)
61	mov	RFIOS_SET_PERFREG, %o5
62	ta	FAST_TRAP
63	retl
64	nop
65	SET_SIZE(rfiospc_set_perfreg)
66
67#endif
68