xref: /freebsd/sys/powerpc/include/kdb.h (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
1 /*-
2  * Copyright (c) 2004 Marcel Moolenaar
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #ifndef _MACHINE_KDB_H_
30 #define _MACHINE_KDB_H_
31 
32 #include <machine/cpufunc.h>
33 #include <machine/frame.h>
34 #include <machine/md_var.h>
35 #include <machine/psl.h>
36 
37 static __inline void
38 kdb_cpu_clear_singlestep(void)
39 {
40 	kdb_frame->srr1 &= ~PSL_SE;
41 }
42 
43 static __inline void
44 kdb_cpu_set_singlestep(void)
45 {
46 	kdb_frame->srr1 |= PSL_SE;
47 }
48 
49 static __inline void
50 kdb_cpu_sync_icache(unsigned char *addr, size_t size)
51 {
52 	__syncicache(addr, size);
53 }
54 
55 static __inline void
56 kdb_cpu_trap(int vector, int _)
57 {
58 }
59 
60 #endif /* _MACHINE_KDB_H_ */
61