1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * arch/parisc/include/asm/kprobes.h
4 *
5 * PA-RISC kprobes implementation
6 *
7 * Copyright (c) 2019 Sven Schnelle <svens@stackframe.org>
8 */
9
10#ifndef _PARISC_KPROBES_H
11#define _PARISC_KPROBES_H
12
13#ifdef CONFIG_KPROBES
14
15#include <asm-generic/kprobes.h>
16#include <linux/types.h>
17#include <linux/ptrace.h>
18#include <linux/notifier.h>
19
20#define PARISC_KPROBES_BREAK_INSN	0x3ff801f
21#define  __ARCH_WANT_KPROBES_INSN_SLOT
22#define MAX_INSN_SIZE 1
23
24typedef u32 kprobe_opcode_t;
25struct kprobe;
26
27void arch_remove_kprobe(struct kprobe *p);
28
29#define flush_insn_slot(p) \
30	flush_icache_range((unsigned long)&(p)->ainsn.insn[0], \
31			   (unsigned long)&(p)->ainsn.insn[0] + \
32			   sizeof(kprobe_opcode_t))
33
34#define kretprobe_blacklist_size    0
35
36struct arch_specific_insn {
37	kprobe_opcode_t *insn;
38};
39
40struct prev_kprobe {
41	struct kprobe *kp;
42	unsigned long status;
43};
44
45struct kprobe_ctlblk {
46	unsigned int kprobe_status;
47	struct prev_kprobe prev_kprobe;
48	unsigned long iaoq[2];
49};
50
51int __kprobes parisc_kprobe_break_handler(struct pt_regs *regs);
52int __kprobes parisc_kprobe_ss_handler(struct pt_regs *regs);
53static inline int kprobe_fault_handler(struct pt_regs *regs, int trapnr)
54{
55	return 0;
56}
57
58#endif /* CONFIG_KPROBES */
59#endif /* _PARISC_KPROBES_H */
60