1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * OpenRISC Linux
4 *
5 * Linux architectural port borrowing liberally from similar works of
6 * others.  All original copyrights apply as per the original source
7 * declaration.
8 *
9 * OpenRISC implementation:
10 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
11 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
12 * et al.
13 */
14
15#ifndef __ASM_OPENRISC_SYSCALL_H__
16#define __ASM_OPENRISC_SYSCALL_H__
17
18#include <uapi/linux/audit.h>
19#include <linux/err.h>
20#include <linux/sched.h>
21
22static inline int
23syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
24{
25	return regs->orig_gpr11;
26}
27
28static inline void
29syscall_rollback(struct task_struct *task, struct pt_regs *regs)
30{
31	regs->gpr[11] = regs->orig_gpr11;
32}
33
34static inline long
35syscall_get_error(struct task_struct *task, struct pt_regs *regs)
36{
37	return IS_ERR_VALUE(regs->gpr[11]) ? regs->gpr[11] : 0;
38}
39
40static inline long
41syscall_get_return_value(struct task_struct *task, struct pt_regs *regs)
42{
43	return regs->gpr[11];
44}
45
46static inline void
47syscall_set_return_value(struct task_struct *task, struct pt_regs *regs,
48			 int error, long val)
49{
50	regs->gpr[11] = (long) error ?: val;
51}
52
53static inline void
54syscall_get_arguments(struct task_struct *task, struct pt_regs *regs,
55		      unsigned long *args)
56{
57	memcpy(args, &regs->gpr[3], 6 * sizeof(args[0]));
58}
59
60static inline int syscall_get_arch(struct task_struct *task)
61{
62	return AUDIT_ARCH_OPENRISC;
63}
64#endif
65