diff options
Diffstat (limited to 'include/asm-powerpc/syscall.h')
-rw-r--r-- | include/asm-powerpc/syscall.h | 84 |
1 files changed, 0 insertions, 84 deletions
diff --git a/include/asm-powerpc/syscall.h b/include/asm-powerpc/syscall.h deleted file mode 100644 index efa7f0b879f3..000000000000 --- a/include/asm-powerpc/syscall.h +++ /dev/null | |||
@@ -1,84 +0,0 @@ | |||
1 | /* | ||
2 | * Access to user system call parameters and results | ||
3 | * | ||
4 | * Copyright (C) 2008 Red Hat, Inc. All rights reserved. | ||
5 | * | ||
6 | * This copyrighted material is made available to anyone wishing to use, | ||
7 | * modify, copy, or redistribute it subject to the terms and conditions | ||
8 | * of the GNU General Public License v.2. | ||
9 | * | ||
10 | * See asm-generic/syscall.h for descriptions of what we must do here. | ||
11 | */ | ||
12 | |||
13 | #ifndef _ASM_SYSCALL_H | ||
14 | #define _ASM_SYSCALL_H 1 | ||
15 | |||
16 | #include <linux/sched.h> | ||
17 | |||
18 | static inline long syscall_get_nr(struct task_struct *task, | ||
19 | struct pt_regs *regs) | ||
20 | { | ||
21 | return TRAP(regs) == 0xc00 ? regs->gpr[0] : -1L; | ||
22 | } | ||
23 | |||
24 | static inline void syscall_rollback(struct task_struct *task, | ||
25 | struct pt_regs *regs) | ||
26 | { | ||
27 | regs->gpr[3] = regs->orig_gpr3; | ||
28 | } | ||
29 | |||
30 | static inline long syscall_get_error(struct task_struct *task, | ||
31 | struct pt_regs *regs) | ||
32 | { | ||
33 | return (regs->ccr & 0x1000) ? -regs->gpr[3] : 0; | ||
34 | } | ||
35 | |||
36 | static inline long syscall_get_return_value(struct task_struct *task, | ||
37 | struct pt_regs *regs) | ||
38 | { | ||
39 | return regs->gpr[3]; | ||
40 | } | ||
41 | |||
42 | static inline void syscall_set_return_value(struct task_struct *task, | ||
43 | struct pt_regs *regs, | ||
44 | int error, long val) | ||
45 | { | ||
46 | if (error) { | ||
47 | regs->ccr |= 0x1000L; | ||
48 | regs->gpr[3] = -error; | ||
49 | } else { | ||
50 | regs->ccr &= ~0x1000L; | ||
51 | regs->gpr[3] = val; | ||
52 | } | ||
53 | } | ||
54 | |||
55 | static inline void syscall_get_arguments(struct task_struct *task, | ||
56 | struct pt_regs *regs, | ||
57 | unsigned int i, unsigned int n, | ||
58 | unsigned long *args) | ||
59 | { | ||
60 | BUG_ON(i + n > 6); | ||
61 | #ifdef CONFIG_PPC64 | ||
62 | if (test_tsk_thread_flag(task, TIF_32BIT)) { | ||
63 | /* | ||
64 | * Zero-extend 32-bit argument values. The high bits are | ||
65 | * garbage ignored by the actual syscall dispatch. | ||
66 | */ | ||
67 | while (n-- > 0) | ||
68 | args[n] = (u32) regs->gpr[3 + i + n]; | ||
69 | return; | ||
70 | } | ||
71 | #endif | ||
72 | memcpy(args, ®s->gpr[3 + i], n * sizeof(args[0])); | ||
73 | } | ||
74 | |||
75 | static inline void syscall_set_arguments(struct task_struct *task, | ||
76 | struct pt_regs *regs, | ||
77 | unsigned int i, unsigned int n, | ||
78 | const unsigned long *args) | ||
79 | { | ||
80 | BUG_ON(i + n > 6); | ||
81 | memcpy(®s->gpr[3 + i], args, n * sizeof(args[0])); | ||
82 | } | ||
83 | |||
84 | #endif /* _ASM_SYSCALL_H */ | ||