1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Syscall support for the Hexagon architecture
4 *
5 * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
6 */
7
8#ifndef _ASM_HEXAGON_SYSCALL_H
9#define _ASM_HEXAGON_SYSCALL_H
10
11#include <uapi/linux/audit.h>
12#include <linux/err.h>
13#include <asm/ptrace.h>
14
15typedef long (*syscall_fn)(unsigned long, unsigned long,
16	unsigned long, unsigned long,
17	unsigned long, unsigned long);
18
19#include <asm-generic/syscalls.h>
20
21extern void *sys_call_table[];
22
23static inline long syscall_get_nr(struct task_struct *task,
24				  struct pt_regs *regs)
25{
26	return regs->r06;
27}
28
29static inline void syscall_get_arguments(struct task_struct *task,
30					 struct pt_regs *regs,
31					 unsigned long *args)
32{
33	memcpy(args, &(&regs->r00)[0], 6 * sizeof(args[0]));
34}
35
36static inline long syscall_get_error(struct task_struct *task,
37				     struct pt_regs *regs)
38{
39	return IS_ERR_VALUE(regs->r00) ? regs->r00 : 0;
40}
41
42static inline long syscall_get_return_value(struct task_struct *task,
43					    struct pt_regs *regs)
44{
45	return regs->r00;
46}
47
48static inline int syscall_get_arch(struct task_struct *task)
49{
50	return AUDIT_ARCH_HEXAGON;
51}
52
53#endif
54