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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 PSW32_MASK_PER          0x40000000UL
  10 #define PSW32_MASK_DAT          0x04000000UL
  11 #define PSW32_MASK_IO           0x02000000UL
  12 #define PSW32_MASK_EXT          0x01000000UL
  13 #define PSW32_MASK_KEY          0x00F00000UL
  14 #define PSW32_MASK_MCHECK       0x00040000UL
  15 #define PSW32_MASK_WAIT         0x00020000UL
  16 #define PSW32_MASK_PSTATE       0x00010000UL
  17 #define PSW32_MASK_ASC          0x0000C000UL
  18 #define PSW32_MASK_CC           0x00003000UL
  19 #define PSW32_MASK_PM           0x00000f00UL
  20
  21 #define PSW32_ADDR_AMODE31      0x80000000UL
  22 #define PSW32_ADDR_INSN         0x7FFFFFFFUL
  23
  24 #define PSW32_BASE_BITS         0x00080000UL
  25
  26 #define PSW32_ASC_PRIMARY       0x00000000UL
  27 #define PSW32_ASC_ACCREG        0x00004000UL
  28 #define PSW32_ASC_SECONDARY     0x00008000UL
  29 #define PSW32_ASC_HOME          0x0000C000UL
  30
  31 #define PSW32_MASK_MERGE(CURRENT,NEW) \
  32         (((CURRENT) & ~(PSW32_MASK_CC|PSW32_MASK_PM)) | \
  33          ((NEW) & (PSW32_MASK_CC|PSW32_MASK_PM)))
  34
  35 extern long psw32_user_bits;
  36
  37 #define COMPAT_USER_HZ  100
  38
  39 typedef u32             compat_size_t;
  40 typedef s32             compat_ssize_t;
  41 typedef s32             compat_time_t;
  42 typedef s32             compat_clock_t;
  43 typedef s32             compat_pid_t;
  44 typedef u16             __compat_uid_t;
  45 typedef u16             __compat_gid_t;
  46 typedef u32             __compat_uid32_t;
  47 typedef u32             __compat_gid32_t;
  48 typedef u16             compat_mode_t;
  49 typedef u32             compat_ino_t;
  50 typedef u16             compat_dev_t;
  51 typedef s32             compat_off_t;
  52 typedef s64             compat_loff_t;
  53 typedef u16             compat_nlink_t;
  54 typedef u16             compat_ipc_pid_t;
  55 typedef s32             compat_daddr_t;
  56 typedef u32             compat_caddr_t;
  57 typedef __kernel_fsid_t compat_fsid_t;
  58 typedef s32             compat_key_t;
  59 typedef s32             compat_timer_t;
  60
  61 typedef s32             compat_int_t;
  62 typedef s32             compat_long_t;
  63 typedef s64             compat_s64;
  64 typedef u32             compat_uint_t;
  65 typedef u32             compat_ulong_t;
  66 typedef u64             compat_u64;
  67
  68 struct compat_timespec {
  69         compat_time_t   tv_sec;
  70         s32             tv_nsec;
  71 };
  72
  73 struct compat_timeval {
  74         compat_time_t   tv_sec;
  75         s32             tv_usec;
  76 };
  77
  78 struct compat_stat {
  79         compat_dev_t    st_dev;
  80         u16             __pad1;
  81         compat_ino_t    st_ino;
  82         compat_mode_t   st_mode;
  83         compat_nlink_t  st_nlink;
  84         __compat_uid_t  st_uid;
  85         __compat_gid_t  st_gid;
  86         compat_dev_t    st_rdev;
  87         u16             __pad2;
  88         u32             st_size;
  89         u32             st_blksize;
  90         u32             st_blocks;
  91         u32             st_atime;
  92         u32             st_atime_nsec;
  93         u32             st_mtime;
  94         u32             st_mtime_nsec;
  95         u32             st_ctime;
  96         u32             st_ctime_nsec;
  97         u32             __unused4;
  98         u32             __unused5;
  99 };
 100
 101 struct compat_flock {
 102         short           l_type;
 103         short           l_whence;
 104         compat_off_t    l_start;
 105         compat_off_t    l_len;
 106         compat_pid_t    l_pid;
 107 };
 108
 109 #define F_GETLK64       12
 110 #define F_SETLK64       13
 111 #define F_SETLKW64      14
 112
 113 struct compat_flock64 {
 114         short           l_type;
 115         short           l_whence;
 116         compat_loff_t   l_start;
 117         compat_loff_t   l_len;
 118         compat_pid_t    l_pid;
 119 };
 120
 121 struct compat_statfs {
 122         s32             f_type;
 123         s32             f_bsize;
 124         s32             f_blocks;
 125         s32             f_bfree;
 126         s32             f_bavail;
 127         s32             f_files;
 128         s32             f_ffree;
 129         compat_fsid_t   f_fsid;
 130         s32             f_namelen;
 131         s32             f_frsize;
 132         s32             f_spare[6];
 133 };
 134
 135 #define COMPAT_RLIM_OLD_INFINITY        0x7fffffff
 136 #define COMPAT_RLIM_INFINITY            0xffffffff
 137
 138 typedef u32             compat_old_sigset_t;    /* at least 32 bits */
 139
 140 #define _COMPAT_NSIG            64
 141 #define _COMPAT_NSIG_BPW        32
 142
 143 typedef u32             compat_sigset_word;
 144
 145 #define COMPAT_OFF_T_MAX        0x7fffffff
 146 #define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
 147
 148 /*
 149  * A pointer passed in from user mode. This should not
 150  * be used for syscall parameters, just declare them
 151  * as pointers because the syscall entry code will have
 152  * appropriately converted them already.
 153  */
 154 typedef u32             compat_uptr_t;
 155
 156 static inline void __user *compat_ptr(compat_uptr_t uptr)
 157 {
 158         return (void __user *)(unsigned long)(uptr & 0x7fffffffUL);
 159 }
 160
 161 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
 162 {
 163         return (u32)(unsigned long)uptr;
 164 }
 165
 166 static inline void __user *compat_alloc_user_space(long len)
 167 {
 168         unsigned long stack;
 169
 170         stack = KSTK_ESP(current);
 171         if (test_thread_flag(TIF_31BIT))
 172                 stack &= 0x7fffffffUL;
 173         return (void __user *) (stack - len);
 174 }
 175
 176 struct compat_ipc64_perm {
 177         compat_key_t key;
 178         __compat_uid32_t uid;
 179         __compat_gid32_t gid;
 180         __compat_uid32_t cuid;
 181         __compat_gid32_t cgid;
 182         compat_mode_t mode;
 183         unsigned short __pad1;
 184         unsigned short seq;
 185         unsigned short __pad2;
 186         unsigned int __unused1;
 187         unsigned int __unused2;
 188 };
 189
 190 struct compat_semid64_ds {
 191         struct compat_ipc64_perm sem_perm;
 192         compat_time_t  sem_otime;
 193         compat_ulong_t __pad1;
 194         compat_time_t  sem_ctime;
 195         compat_ulong_t __pad2;
 196         compat_ulong_t sem_nsems;
 197         compat_ulong_t __unused1;
 198         compat_ulong_t __unused2;
 199 };
 200
 201 struct compat_msqid64_ds {
 202         struct compat_ipc64_perm msg_perm;
 203         compat_time_t   msg_stime;
 204         compat_ulong_t __pad1;
 205         compat_time_t   msg_rtime;
 206         compat_ulong_t __pad2;
 207         compat_time_t   msg_ctime;
 208         compat_ulong_t __pad3;
 209         compat_ulong_t msg_cbytes;
 210         compat_ulong_t msg_qnum;
 211         compat_ulong_t msg_qbytes;
 212         compat_pid_t   msg_lspid;
 213         compat_pid_t   msg_lrpid;
 214         compat_ulong_t __unused1;
 215         compat_ulong_t __unused2;
 216 };
 217
 218 struct compat_shmid64_ds {
 219         struct compat_ipc64_perm shm_perm;
 220         compat_size_t  shm_segsz;
 221         compat_time_t  shm_atime;
 222         compat_ulong_t __pad1;
 223         compat_time_t  shm_dtime;
 224         compat_ulong_t __pad2;
 225         compat_time_t  shm_ctime;
 226         compat_ulong_t __pad3;
 227         compat_pid_t   shm_cpid;
 228         compat_pid_t   shm_lpid;
 229         compat_ulong_t shm_nattch;
 230         compat_ulong_t __unused1;
 231         compat_ulong_t __unused2;
 232 };
 233 #endif /* _ASM_S390X_COMPAT_H */