]>
Commit | Line | Data |
---|---|---|
2874c5fd | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
09abb901 JB |
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. | |
09abb901 JB |
13 | */ |
14 | ||
15 | #ifndef __ASM_OPENRISC_SYSCALL_H__ | |
16 | #define __ASM_OPENRISC_SYSCALL_H__ | |
17 | ||
ce5d1128 | 18 | #include <uapi/linux/audit.h> |
09abb901 JB |
19 | #include <linux/err.h> |
20 | #include <linux/sched.h> | |
21 | ||
22 | static inline int | |
23 | syscall_get_nr(struct task_struct *task, struct pt_regs *regs) | |
24 | { | |
6cbe5e95 | 25 | return regs->orig_gpr11; |
09abb901 JB |
26 | } |
27 | ||
28 | static inline void | |
29 | syscall_rollback(struct task_struct *task, struct pt_regs *regs) | |
30 | { | |
31 | regs->gpr[11] = regs->orig_gpr11; | |
32 | } | |
33 | ||
34 | static inline long | |
35 | syscall_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 | ||
40 | static inline long | |
41 | syscall_get_return_value(struct task_struct *task, struct pt_regs *regs) | |
42 | { | |
43 | return regs->gpr[11]; | |
44 | } | |
45 | ||
46 | static inline void | |
47 | syscall_set_return_value(struct task_struct *task, struct pt_regs *regs, | |
48 | int error, long val) | |
49 | { | |
6cbe5e95 | 50 | regs->gpr[11] = (long) error ?: val; |
09abb901 JB |
51 | } |
52 | ||
53 | static inline void | |
54 | syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, | |
b35f549d | 55 | unsigned long *args) |
09abb901 | 56 | { |
b35f549d | 57 | memcpy(args, ®s->gpr[3], 6 * sizeof(args[0])); |
09abb901 JB |
58 | } |
59 | ||
60 | static inline void | |
61 | syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, | |
32d92586 | 62 | const unsigned long *args) |
09abb901 | 63 | { |
32d92586 | 64 | memcpy(®s->gpr[3], args, 6 * sizeof(args[0])); |
09abb901 JB |
65 | } |
66 | ||
16add411 | 67 | static inline int syscall_get_arch(struct task_struct *task) |
ce5d1128 EP |
68 | { |
69 | return AUDIT_ARCH_OPENRISC; | |
70 | } | |
09abb901 | 71 | #endif |