1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
 4 */
 5
 6#ifndef _ARC_KPROBES_H
 7#define _ARC_KPROBES_H
 8
 9#include <asm-generic/kprobes.h>
10
11#ifdef CONFIG_KPROBES
12
13typedef u16 kprobe_opcode_t;
14
15#define UNIMP_S_INSTRUCTION 0x79e0
16#define TRAP_S_2_INSTRUCTION 0x785e
17
18#define MAX_INSN_SIZE   8
19#define MAX_STACK_SIZE  64
20
21struct arch_specific_insn {
22	int is_short;
23	kprobe_opcode_t *t1_addr, *t2_addr;
24	kprobe_opcode_t t1_opcode, t2_opcode;
25};
26
27#define flush_insn_slot(p)  do {  } while (0)
28
29#define kretprobe_blacklist_size    0
30
31struct kprobe;
32
33void arch_remove_kprobe(struct kprobe *p);
34
35struct prev_kprobe {
36	struct kprobe *kp;
37	unsigned long status;
38};
39
40struct kprobe_ctlblk {
41	unsigned int kprobe_status;
42	struct prev_kprobe prev_kprobe;
43};
44
45int kprobe_fault_handler(struct pt_regs *regs, unsigned long cause);
46void __kretprobe_trampoline(void);
47void trap_is_kprobe(unsigned long address, struct pt_regs *regs);
48#else
49#define trap_is_kprobe(address, regs)
50#endif /* CONFIG_KPROBES */
51
52#endif /* _ARC_KPROBES_H */