asm-*/compat.h: fix typo in comment
[linux-2.6.git] / include / asm-powerpc / compat.h
1 #ifndef _ASM_POWERPC_COMPAT_H
2 #define _ASM_POWERPC_COMPAT_H
3 #ifdef __KERNEL__
4 /*
5  * Architecture specific compatibility types
6  */
7 #include <linux/types.h>
8 #include <linux/sched.h>
9
10 #define COMPAT_USER_HZ  100
11
12 typedef u32             compat_size_t;
13 typedef s32             compat_ssize_t;
14 typedef s32             compat_time_t;
15 typedef s32             compat_clock_t;
16 typedef s32             compat_pid_t;
17 typedef u32             __compat_uid_t;
18 typedef u32             __compat_gid_t;
19 typedef u32             __compat_uid32_t;
20 typedef u32             __compat_gid32_t;
21 typedef u32             compat_mode_t;
22 typedef u32             compat_ino_t;
23 typedef u32             compat_dev_t;
24 typedef s32             compat_off_t;
25 typedef s64             compat_loff_t;
26 typedef s16             compat_nlink_t;
27 typedef u16             compat_ipc_pid_t;
28 typedef s32             compat_daddr_t;
29 typedef u32             compat_caddr_t;
30 typedef __kernel_fsid_t compat_fsid_t;
31 typedef s32             compat_key_t;
32 typedef s32             compat_timer_t;
33
34 typedef s32             compat_int_t;
35 typedef s32             compat_long_t;
36 typedef s64             compat_s64;
37 typedef u32             compat_uint_t;
38 typedef u32             compat_ulong_t;
39 typedef u64             compat_u64;
40
41 struct compat_timespec {
42         compat_time_t   tv_sec;
43         s32             tv_nsec;
44 };
45
46 struct compat_timeval {
47         compat_time_t   tv_sec;
48         s32             tv_usec;
49 };
50
51 struct compat_stat {
52         compat_dev_t    st_dev;
53         compat_ino_t    st_ino;
54         compat_mode_t   st_mode;
55         compat_nlink_t  st_nlink;
56         __compat_uid32_t        st_uid;
57         __compat_gid32_t        st_gid;
58         compat_dev_t    st_rdev;
59         compat_off_t    st_size;
60         compat_off_t    st_blksize;
61         compat_off_t    st_blocks;
62         compat_time_t   st_atime;
63         u32             st_atime_nsec;
64         compat_time_t   st_mtime;
65         u32             st_mtime_nsec;
66         compat_time_t   st_ctime;
67         u32             st_ctime_nsec;
68         u32             __unused4[2];
69 };
70
71 struct compat_flock {
72         short           l_type;
73         short           l_whence;
74         compat_off_t    l_start;
75         compat_off_t    l_len;
76         compat_pid_t    l_pid;
77 };
78
79 #define F_GETLK64       12      /*  using 'struct flock64' */
80 #define F_SETLK64       13
81 #define F_SETLKW64      14
82
83 struct compat_flock64 {
84         short           l_type;
85         short           l_whence;
86         compat_loff_t   l_start;
87         compat_loff_t   l_len;
88         compat_pid_t    l_pid;
89 };
90
91 struct compat_statfs {
92         int             f_type;
93         int             f_bsize;
94         int             f_blocks;
95         int             f_bfree;
96         int             f_bavail;
97         int             f_files;
98         int             f_ffree;
99         compat_fsid_t   f_fsid;
100         int             f_namelen;      /* SunOS ignores this field. */
101         int             f_frsize;
102         int             f_spare[5];
103 };
104
105 #define COMPAT_RLIM_OLD_INFINITY        0x7fffffff
106 #define COMPAT_RLIM_INFINITY            0xffffffff
107
108 typedef u32             compat_old_sigset_t;
109
110 #define _COMPAT_NSIG            64
111 #define _COMPAT_NSIG_BPW        32
112
113 typedef u32             compat_sigset_word;
114
115 #define COMPAT_OFF_T_MAX        0x7fffffff
116 #define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
117
118 /*
119  * A pointer passed in from user mode. This should not
120  * be used for syscall parameters, just declare them
121  * as pointers because the syscall entry code will have
122  * appropriately converted them already.
123  */
124 typedef u32             compat_uptr_t;
125
126 static inline void __user *compat_ptr(compat_uptr_t uptr)
127 {
128         return (void __user *)(unsigned long)uptr;
129 }
130
131 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
132 {
133         return (u32)(unsigned long)uptr;
134 }
135
136 static inline void __user *compat_alloc_user_space(long len)
137 {
138         struct pt_regs *regs = current->thread.regs;
139         unsigned long usp = regs->gpr[1];
140
141         /*
142          * We cant access below the stack pointer in the 32bit ABI and
143          * can access 288 bytes in the 64bit ABI
144          */
145         if (!(test_thread_flag(TIF_32BIT)))
146                 usp -= 288;
147
148         return (void __user *) (usp - len);
149 }
150
151 /*
152  * ipc64_perm is actually 32/64bit clean but since the compat layer refers to
153  * it we may as well define it.
154  */
155 struct compat_ipc64_perm {
156         compat_key_t key;
157         __compat_uid_t uid;
158         __compat_gid_t gid;
159         __compat_uid_t cuid;
160         __compat_gid_t cgid;
161         compat_mode_t mode;
162         unsigned int seq;
163         unsigned int __pad2;
164         unsigned long __unused1;        /* yes they really are 64bit pads */
165         unsigned long __unused2;
166 };
167
168 struct compat_semid64_ds {
169         struct compat_ipc64_perm sem_perm;
170         unsigned int __unused1;
171         compat_time_t sem_otime;
172         unsigned int __unused2;
173         compat_time_t sem_ctime;
174         compat_ulong_t sem_nsems;
175         compat_ulong_t __unused3;
176         compat_ulong_t __unused4;
177 };
178
179 struct compat_msqid64_ds {
180         struct compat_ipc64_perm msg_perm;
181         unsigned int __unused1;
182         compat_time_t msg_stime;
183         unsigned int __unused2;
184         compat_time_t msg_rtime;
185         unsigned int __unused3;
186         compat_time_t msg_ctime;
187         compat_ulong_t msg_cbytes;
188         compat_ulong_t msg_qnum;
189         compat_ulong_t msg_qbytes;
190         compat_pid_t msg_lspid;
191         compat_pid_t msg_lrpid;
192         compat_ulong_t __unused4;
193         compat_ulong_t __unused5;
194 };
195
196 struct compat_shmid64_ds {
197         struct compat_ipc64_perm shm_perm;
198         unsigned int __unused1;
199         compat_time_t shm_atime;
200         unsigned int __unused2;
201         compat_time_t shm_dtime;
202         unsigned int __unused3;
203         compat_time_t shm_ctime;
204         unsigned int __unused4;
205         compat_size_t shm_segsz;
206         compat_pid_t shm_cpid;
207         compat_pid_t shm_lpid;
208         compat_ulong_t shm_nattch;
209         compat_ulong_t __unused5;
210         compat_ulong_t __unused6;
211 };
212
213 #endif /* __KERNEL__ */
214 #endif /* _ASM_POWERPC_COMPAT_H */