12414f5fc666b00a13c433aa42326127e93c168b
[linux-3.10.git] / include / asm-ppc64 / compat.h
1 #ifndef _ASM_PPC64_COMPAT_H
2 #define _ASM_PPC64_COMPAT_H
3 /*
4  * Architecture specific compatibility types
5  */
6 #include <linux/types.h>
7 #include <linux/sched.h>
8
9 #define COMPAT_USER_HZ  100
10
11 typedef u32             compat_size_t;
12 typedef s32             compat_ssize_t;
13 typedef s32             compat_time_t;
14 typedef s32             compat_clock_t;
15 typedef s32             compat_pid_t;
16 typedef u32             compat_uid_t;
17 typedef u32             compat_gid_t;
18 typedef u32             compat_mode_t;
19 typedef u32             compat_ino_t;
20 typedef u32             compat_dev_t;
21 typedef s32             compat_off_t;
22 typedef s64             compat_loff_t;
23 typedef s16             compat_nlink_t;
24 typedef u16             compat_ipc_pid_t;
25 typedef s32             compat_daddr_t;
26 typedef u32             compat_caddr_t;
27 typedef __kernel_fsid_t compat_fsid_t;
28 typedef s32             compat_key_t;
29 typedef s32             compat_timer_t;
30
31 typedef s32             compat_int_t;
32 typedef s32             compat_long_t;
33 typedef u32             compat_uint_t;
34 typedef u32             compat_ulong_t;
35
36 struct compat_timespec {
37         compat_time_t   tv_sec;
38         s32             tv_nsec;
39 };
40
41 struct compat_timeval {
42         compat_time_t   tv_sec;
43         s32             tv_usec;
44 };
45
46 struct compat_stat {
47         compat_dev_t    st_dev;
48         compat_ino_t    st_ino;
49         compat_mode_t   st_mode;
50         compat_nlink_t  st_nlink;       
51         compat_uid_t    st_uid;
52         compat_gid_t    st_gid;
53         compat_dev_t    st_rdev;
54         compat_off_t    st_size;
55         compat_off_t    st_blksize;
56         compat_off_t    st_blocks;
57         compat_time_t   st_atime;
58         u32             st_atime_nsec;
59         compat_time_t   st_mtime;
60         u32             st_mtime_nsec;
61         compat_time_t   st_ctime;
62         u32             st_ctime_nsec;
63         u32             __unused4[2];
64 };
65
66 struct compat_flock {
67         short           l_type;
68         short           l_whence;
69         compat_off_t    l_start;
70         compat_off_t    l_len;
71         compat_pid_t    l_pid;
72 };
73
74 #define F_GETLK64       12      /*  using 'struct flock64' */
75 #define F_SETLK64       13
76 #define F_SETLKW64      14
77
78 struct compat_flock64 {
79         short           l_type;
80         short           l_whence;
81         compat_loff_t   l_start;
82         compat_loff_t   l_len;
83         compat_pid_t    l_pid;
84 };
85
86 struct compat_statfs {
87         int             f_type;
88         int             f_bsize;
89         int             f_blocks;
90         int             f_bfree;
91         int             f_bavail;
92         int             f_files;
93         int             f_ffree;
94         compat_fsid_t   f_fsid;
95         int             f_namelen;      /* SunOS ignores this field. */
96         int             f_frsize;
97         int             f_spare[5];
98 };
99
100 #define COMPAT_RLIM_OLD_INFINITY        0x7fffffff
101 #define COMPAT_RLIM_INFINITY            0xffffffff
102
103 typedef u32             compat_old_sigset_t;
104
105 #define _COMPAT_NSIG            64
106 #define _COMPAT_NSIG_BPW        32
107
108 typedef u32             compat_sigset_word;
109
110 #define COMPAT_OFF_T_MAX        0x7fffffff
111 #define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
112
113 /*
114  * A pointer passed in from user mode. This should not
115  * be used for syscall parameters, just declare them
116  * as pointers because the syscall entry code will have
117  * appropriately comverted them already.
118  */
119 typedef u32             compat_uptr_t;
120
121 static inline void __user *compat_ptr(compat_uptr_t uptr)
122 {
123         return (void __user *)(unsigned long)uptr;
124 }
125
126 static inline void __user *compat_alloc_user_space(long len)
127 {
128         struct pt_regs *regs = current->thread.regs;
129         unsigned long usp = regs->gpr[1];
130
131         /*
132          * We cant access below the stack pointer in the 32bit ABI and
133          * can access 288 bytes in the 64bit ABI
134          */
135         if (!(test_thread_flag(TIF_32BIT)))
136                 usp -= 288;
137
138         return (void __user *) (usp - len);
139 }
140
141 /*
142  * ipc64_perm is actually 32/64bit clean but since the compat layer refers to
143  * it we may as well define it.
144  */
145 struct compat_ipc64_perm {
146         compat_key_t key;
147         compat_uid_t uid;
148         compat_gid_t gid;
149         compat_uid_t cuid;
150         compat_gid_t cgid;
151         compat_mode_t mode;
152         unsigned int seq;
153         unsigned int __pad2;
154         unsigned long __unused1;        /* yes they really are 64bit pads */
155         unsigned long __unused2;
156 };
157
158 struct compat_semid64_ds {
159         struct compat_ipc64_perm sem_perm;
160         unsigned int __unused1;
161         compat_time_t sem_otime;
162         unsigned int __unused2;
163         compat_time_t sem_ctime;
164         compat_ulong_t sem_nsems;
165         compat_ulong_t __unused3;
166         compat_ulong_t __unused4;
167 };
168
169 struct compat_msqid64_ds {
170         struct compat_ipc64_perm msg_perm;
171         unsigned int __unused1;
172         compat_time_t msg_stime;
173         unsigned int __unused2;
174         compat_time_t msg_rtime;
175         unsigned int __unused3;
176         compat_time_t msg_ctime;
177         compat_ulong_t msg_cbytes;
178         compat_ulong_t msg_qnum;
179         compat_ulong_t msg_qbytes;
180         compat_pid_t msg_lspid;
181         compat_pid_t msg_lrpid;
182         compat_ulong_t __unused4;
183         compat_ulong_t __unused5;
184 };
185
186 struct compat_shmid64_ds {
187         struct compat_ipc64_perm shm_perm;
188         unsigned int __unused1;
189         compat_time_t shm_atime;
190         unsigned int __unused2;
191         compat_time_t shm_dtime;
192         unsigned int __unused3;
193         compat_time_t shm_ctime;
194         unsigned int __unused4;
195         compat_size_t shm_segsz;
196         compat_pid_t shm_cpid;
197         compat_pid_t shm_lpid;
198         compat_ulong_t shm_nattch;
199         compat_ulong_t __unused5;
200         compat_ulong_t __unused6;
201 };
202
203 #endif /* _ASM_PPC64_COMPAT_H */