1/* SPDX-License-Identifier: GPL-2.0-or-later */
2#ifndef _ASM_UPROBES_H
3#define _ASM_UPROBES_H
4/*
5 * User-space Probes (UProbes) for powerpc
6 *
7 * Copyright IBM Corporation, 2007-2012
8 *
9 * Adapted from the x86 port by Ananth N Mavinakayanahalli <ananth@in.ibm.com>
10 */
11
12#include <linux/notifier.h>
13#include <asm/probes.h>
14#include <asm/inst.h>
15
16typedef ppc_opcode_t uprobe_opcode_t;
17
18#define MAX_UINSN_BYTES		8
19#define UPROBE_XOL_SLOT_BYTES	(MAX_UINSN_BYTES)
20
21/* The following alias is needed for reference from arch-agnostic code */
22#define UPROBE_SWBP_INSN	BREAKPOINT_INSTRUCTION
23#define UPROBE_SWBP_INSN_SIZE	4 /* swbp insn size in bytes */
24
25struct arch_uprobe {
26	union {
27		struct ppc_inst	insn;
28		struct ppc_inst	ixol;
29	};
30};
31
32struct arch_uprobe_task {
33	unsigned long	saved_trap_nr;
34};
35
36#endif	/* _ASM_UPROBES_H */
37