asm-*/compat.h: fix typo in comment
[linux-2.6.git] / include / asm-ia64 / compat.h
1 #ifndef _ASM_IA64_COMPAT_H
2 #define _ASM_IA64_COMPAT_H
3 /*
4  * Architecture specific compatibility types
5  */
6 #include <linux/types.h>
7
8 #define COMPAT_USER_HZ  100
9
10 typedef u32             compat_size_t;
11 typedef s32             compat_ssize_t;
12 typedef s32             compat_time_t;
13 typedef s32             compat_clock_t;
14 typedef s32             compat_key_t;
15 typedef s32             compat_pid_t;
16 typedef u16             __compat_uid_t;
17 typedef u16             __compat_gid_t;
18 typedef u32             __compat_uid32_t;
19 typedef u32             __compat_gid32_t;
20 typedef u16             compat_mode_t;
21 typedef u32             compat_ino_t;
22 typedef u16             compat_dev_t;
23 typedef s32             compat_off_t;
24 typedef s64             compat_loff_t;
25 typedef u16             compat_nlink_t;
26 typedef u16             compat_ipc_pid_t;
27 typedef s32             compat_daddr_t;
28 typedef u32             compat_caddr_t;
29 typedef __kernel_fsid_t compat_fsid_t;
30 typedef s32             compat_timer_t;
31
32 typedef s32             compat_int_t;
33 typedef s32             compat_long_t;
34 typedef s64 __attribute__((aligned(4))) compat_s64;
35 typedef u32             compat_uint_t;
36 typedef u32             compat_ulong_t;
37 typedef u64 __attribute__((aligned(4))) compat_u64;
38
39 struct compat_timespec {
40         compat_time_t   tv_sec;
41         s32             tv_nsec;
42 };
43
44 struct compat_timeval {
45         compat_time_t   tv_sec;
46         s32             tv_usec;
47 };
48
49 struct compat_stat {
50         compat_dev_t    st_dev;
51         u16             __pad1;
52         compat_ino_t    st_ino;
53         compat_mode_t   st_mode;
54         compat_nlink_t  st_nlink;
55         __compat_uid_t  st_uid;
56         __compat_gid_t  st_gid;
57         compat_dev_t    st_rdev;
58         u16             __pad2;
59         u32             st_size;
60         u32             st_blksize;
61         u32             st_blocks;
62         u32             st_atime;
63         u32             st_atime_nsec;
64         u32             st_mtime;
65         u32             st_mtime_nsec;
66         u32             st_ctime;
67         u32             st_ctime_nsec;
68         u32             __unused4;
69         u32             __unused5;
70 };
71
72 struct compat_flock {
73         short           l_type;
74         short           l_whence;
75         compat_off_t    l_start;
76         compat_off_t    l_len;
77         compat_pid_t    l_pid;
78 };
79
80 #define F_GETLK64       12
81 #define F_SETLK64       13
82 #define F_SETLKW64      14
83
84 /*
85  * IA32 uses 4 byte alignment for 64 bit quantities,
86  * so we need to pack this structure.
87  */
88 struct compat_flock64 {
89         short           l_type;
90         short           l_whence;
91         compat_loff_t   l_start;
92         compat_loff_t   l_len;
93         compat_pid_t    l_pid;
94 } __attribute__((packed));
95
96 struct compat_statfs {
97         int             f_type;
98         int             f_bsize;
99         int             f_blocks;
100         int             f_bfree;
101         int             f_bavail;
102         int             f_files;
103         int             f_ffree;
104         compat_fsid_t   f_fsid;
105         int             f_namelen;      /* SunOS ignores this field. */
106         int             f_frsize;
107         int             f_spare[5];
108 };
109
110 #define COMPAT_RLIM_OLD_INFINITY       0x7fffffff
111 #define COMPAT_RLIM_INFINITY           0xffffffff
112
113 typedef u32             compat_old_sigset_t;    /* at least 32 bits */
114
115 #define _COMPAT_NSIG            64
116 #define _COMPAT_NSIG_BPW        32
117
118 typedef u32             compat_sigset_word;
119
120 #define COMPAT_OFF_T_MAX        0x7fffffff
121 #define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
122
123 struct compat_ipc64_perm {
124         compat_key_t key;
125         __compat_uid32_t uid;
126         __compat_gid32_t gid;
127         __compat_uid32_t cuid;
128         __compat_gid32_t cgid;
129         unsigned short mode;
130         unsigned short __pad1;
131         unsigned short seq;
132         unsigned short __pad2;
133         compat_ulong_t unused1;
134         compat_ulong_t unused2;
135 };
136
137 struct compat_semid64_ds {
138         struct compat_ipc64_perm sem_perm;
139         compat_time_t  sem_otime;
140         compat_ulong_t __unused1;
141         compat_time_t  sem_ctime;
142         compat_ulong_t __unused2;
143         compat_ulong_t sem_nsems;
144         compat_ulong_t __unused3;
145         compat_ulong_t __unused4;
146 };
147
148 struct compat_msqid64_ds {
149         struct compat_ipc64_perm msg_perm;
150         compat_time_t  msg_stime;
151         compat_ulong_t __unused1;
152         compat_time_t  msg_rtime;
153         compat_ulong_t __unused2;
154         compat_time_t  msg_ctime;
155         compat_ulong_t __unused3;
156         compat_ulong_t msg_cbytes;
157         compat_ulong_t msg_qnum;
158         compat_ulong_t msg_qbytes;
159         compat_pid_t   msg_lspid;
160         compat_pid_t   msg_lrpid;
161         compat_ulong_t __unused4;
162         compat_ulong_t __unused5;
163 };
164
165 struct compat_shmid64_ds {
166         struct compat_ipc64_perm shm_perm;
167         compat_size_t  shm_segsz;
168         compat_time_t  shm_atime;
169         compat_ulong_t __unused1;
170         compat_time_t  shm_dtime;
171         compat_ulong_t __unused2;
172         compat_time_t  shm_ctime;
173         compat_ulong_t __unused3;
174         compat_pid_t   shm_cpid;
175         compat_pid_t   shm_lpid;
176         compat_ulong_t shm_nattch;
177         compat_ulong_t __unused4;
178         compat_ulong_t __unused5;
179 };
180
181 /*
182  * A pointer passed in from user mode. This should not be used for syscall parameters,
183  * just declare them as pointers because the syscall entry code will have appropriately
184  * converted them already.
185  */
186 typedef u32             compat_uptr_t;
187
188 static inline void __user *
189 compat_ptr (compat_uptr_t uptr)
190 {
191         return (void __user *) (unsigned long) uptr;
192 }
193
194 static inline compat_uptr_t
195 ptr_to_compat(void __user *uptr)
196 {
197         return (u32)(unsigned long)uptr;
198 }
199
200 static __inline__ void __user *
201 compat_alloc_user_space (long len)
202 {
203         struct pt_regs *regs = task_pt_regs(current);
204         return (void __user *) (((regs->r12 & 0xffffffff) & -16) - len);
205 }
206
207 #endif /* _ASM_IA64_COMPAT_H */