ktr.h revision 82900 
1/*-
2 * Copyright (c) 1996 Berkeley Software Design, Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 * 3. Berkeley Software Design Inc's name may not be used to endorse or
13 *    promote products derived from this software without specific prior
14 *    written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN INC ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN INC BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 *	from BSDI $Id: ktr.h,v 1.10.2.7 2000/03/16 21:44:42 cp Exp $
29 * $FreeBSD: head/sys/sparc64/include/ktr.h 82900 2001-09-03 22:32:49Z jake $
30 */
31
32#ifndef _MACHINE_KTR_H_
33#define _MACHINE_KTR_H_
34
35#ifdef LOCORE
36
37#define	AND(var, mask, r1, r2, r3, l1) \
38	setx	var, r2, r1 ; \
39	setx	mask, r3, r2 ; \
40	lduw	[r1], r3 ; \
41	and	r2, r3, r1
42
43#define	TEST(var, mask, r1, r2, r3, l1) \
44	AND(var, mask, r1, r2, r3, l1) ; \
45	brz	r1, l1 ## f ; \
46	 nop
47
48/*
49 * XXX doesn't do timestamp or ktr_cpu.
50 */
51#define	ATR(desc, r1, r2, r3, l1, l2) \
52	.sect	.rodata ; \
53l1 ## :	.asciz	desc ; \
54	.previous ; \
55	set	ktr_idx, r1 ; \
56	lduw	[r1], r2 ; \
57l2 ## :	add	r2, 1, r3 ; \
58	casa	[r1] ASI_N, r2, r3 ; \
59	cmp	r2, r3 ; \
60	bne	%icc, l2 ## b ; \
61	 mov	r3, r2 ; \
62	set	ktr_buf, r1 ; \
63	mulx	r2, KTR_SIZEOF, r2 ; \
64	add	r1, r2, r1 ; \
65	set	l1 ## b, r2 ; \
66	stx	r2, [r1 + KTR_DESC]
67
68#define CATR(mask, desc, r1, r2, r3, l1, l2, l3) \
69	TEST(ktr_mask, mask, r1, r2, r3, l3) ; \
70	ATR(desc, r1, r2, r3, l1, l2)
71
72/*
73 * XXX crude conditional breakpoint and sir
74 */
75#define	CBPT(mask, r1, r2, r3, l1) \
76	TEST(ktr_mask, mask, r1, r2, r3, l1) ; \
77	DEBUGGER() ; \
78l1 ## :
79
80#define	CSIR(mask, r1, r2, r3, l1) \
81	TEST(ktr_mask, mask, r1, r2, r3, l1) ; \
82	sir	42 ; \
83l1 ## :
84
85#endif /* LOCORE */
86
87#endif /* !_MACHINE_KTR_H_ */
88