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/ia64_cpu.h>
35
36#define	KDB_STOPPEDPCB(pc)	(&(pc)->pc_md.pcb)
37
38void kdb_cpu_trap(int, int);
39
40static __inline void
41kdb_cpu_clear_singlestep(void)
42{
43	kdb_frame->tf_special.psr &= ~IA64_PSR_SS;
44}
45
46static __inline void
47kdb_cpu_set_singlestep(void)
48{
49	kdb_frame->tf_special.psr |= IA64_PSR_SS;
50}
51
52static __inline void
53kdb_cpu_sync_icache(unsigned char *addr, size_t size)
54{
55	vm_offset_t cacheline;
56
57	cacheline = (uintptr_t)addr & ~31;
58	size += (uintptr_t)addr - cacheline;
59	size = (size + 31) & ~31;
60	while (size > 0) {
61		__asm __volatile("fc %0;; sync.i;; srlz.i;;" :: "r"(cacheline));
62		cacheline += 32;
63		size -= 32;
64	}
65}
66
67#endif /* _MACHINE_KDB_H_ */
68