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   1 #ifndef _ASM_S390X_COMPAT_H
   2 #define _ASM_S390X_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 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_key_t;
  31 typedef s32             compat_timer_t;
  32
  33 typedef s32             compat_int_t;
  34 typedef s32             compat_long_t;
  35 typedef u32             compat_uint_t;
  36 typedef u32             compat_ulong_t;
  37
  38 struct compat_timespec {
  39         compat_time_t   tv_sec;
  40         s32             tv_nsec;
  41 };
  42
  43 struct compat_timeval {
  44         compat_time_t   tv_sec;
  45         s32             tv_usec;
  46 };
  47
  48 struct compat_stat {
  49         compat_dev_t    st_dev;
  50         u16             __pad1;
  51         compat_ino_t    st_ino;
  52         compat_mode_t   st_mode;
  53         compat_nlink_t  st_nlink;
  54         compat_uid_t    st_uid;
  55         compat_gid_t    st_gid;
  56         compat_dev_t    st_rdev;
  57         u16             __pad2;
  58         u32             st_size;
  59         u32             st_blksize;
  60         u32             st_blocks;
  61         u32             st_atime;
  62         u32             st_atime_nsec;
  63         u32             st_mtime;
  64         u32             st_mtime_nsec;
  65         u32             st_ctime;
  66         u32             st_ctime_nsec;
  67         u32             __unused4;
  68         u32             __unused5;
  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
  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         s32             f_type;
  93         s32             f_bsize;
  94         s32             f_blocks;
  95         s32             f_bfree;
  96         s32             f_bavail;
  97         s32             f_files;
  98         s32             f_ffree;
  99         compat_fsid_t   f_fsid;
 100         s32             f_namelen;
 101         s32             f_frsize;
 102         s32             f_spare[6];
 103 };
 104
 105 #define COMPAT_RLIM_OLD_INFINITY        0x7fffffff
 106 #define COMPAT_RLIM_INFINITY            0xffffffff
 107
 108 typedef u32             compat_old_sigset_t;    /* at least 32 bits */
 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 comverted 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 & 0x7fffffffUL);
 129 }
 130
 131 static inline void __user *compat_alloc_user_space(long len)
 132 {
 133         unsigned long stack;
 134
 135         stack = KSTK_ESP(current);
 136         if (test_thread_flag(TIF_31BIT))
 137                 stack &= 0x7fffffffUL;
 138         return (void __user *) (stack - len);
 139 }
 140
 141 struct compat_ipc64_perm {
 142         compat_key_t key;
 143         compat_uid32_t uid;
 144         compat_gid32_t gid;
 145         compat_uid32_t cuid;
 146         compat_gid32_t cgid;
 147         compat_mode_t mode;
 148         unsigned short __pad1;
 149         unsigned short seq;
 150         unsigned short __pad2;
 151         unsigned int __unused1;
 152         unsigned int __unused2;
 153 };
 154
 155 struct compat_semid64_ds {
 156         struct compat_ipc64_perm sem_perm;
 157         compat_time_t  sem_otime;
 158         compat_ulong_t __pad1;
 159         compat_time_t  sem_ctime;
 160         compat_ulong_t __pad2;
 161         compat_ulong_t sem_nsems;
 162         compat_ulong_t __unused1;
 163         compat_ulong_t __unused2;
 164 };
 165
 166 struct compat_msqid64_ds {
 167         struct compat_ipc64_perm msg_perm;
 168         compat_time_t   msg_stime;
 169         compat_ulong_t __pad1;
 170         compat_time_t   msg_rtime;
 171         compat_ulong_t __pad2;
 172         compat_time_t   msg_ctime;
 173         compat_ulong_t __pad3;
 174         compat_ulong_t msg_cbytes;
 175         compat_ulong_t msg_qnum;
 176         compat_ulong_t msg_qbytes;
 177         compat_pid_t   msg_lspid;
 178         compat_pid_t   msg_lrpid;
 179         compat_ulong_t __unused1;
 180         compat_ulong_t __unused2;
 181 };
 182
 183 struct compat_shmid64_ds {
 184         struct compat_ipc64_perm shm_perm;
 185         compat_size_t  shm_segsz;
 186         compat_time_t  shm_atime;
 187         compat_ulong_t __pad1;
 188         compat_time_t  shm_dtime;
 189         compat_ulong_t __pad2;
 190         compat_time_t  shm_ctime;
 191         compat_ulong_t __pad3;
 192         compat_pid_t   shm_cpid;
 193         compat_pid_t   shm_lpid;
 194         compat_ulong_t shm_nattch;
 195         compat_ulong_t __unused1;
 196         compat_ulong_t __unused2;
 197 };
 198 #endif /* _ASM_S390X_COMPAT_H */