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   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 u32             compat_uint_t;
  35 typedef u32             compat_ulong_t;
  36
  37 struct compat_timespec {
  38         compat_time_t   tv_sec;
  39         s32             tv_nsec;
  40 };
  41
  42 struct compat_timeval {
  43         compat_time_t   tv_sec;
  44         s32             tv_usec;
  45 };
  46
  47 struct compat_stat {
  48         compat_dev_t    st_dev;
  49         u16             __pad1;
  50         compat_ino_t    st_ino;
  51         compat_mode_t   st_mode;
  52         compat_nlink_t  st_nlink;
  53         __compat_uid_t  st_uid;
  54         __compat_gid_t  st_gid;
  55         compat_dev_t    st_rdev;
  56         u16             __pad2;
  57         u32             st_size;
  58         u32             st_blksize;
  59         u32             st_blocks;
  60         u32             st_atime;
  61         u32             st_atime_nsec;
  62         u32             st_mtime;
  63         u32             st_mtime_nsec;
  64         u32             st_ctime;
  65         u32             st_ctime_nsec;
  66         u32             __unused4;
  67         u32             __unused5;
  68 };
  69
  70 struct compat_flock {
  71         short           l_type;
  72         short           l_whence;
  73         compat_off_t    l_start;
  74         compat_off_t    l_len;
  75         compat_pid_t    l_pid;
  76 };
  77
  78 #define F_GETLK64       12
  79 #define F_SETLK64       13
  80 #define F_SETLKW64      14
  81
  82 /*
  83  * IA32 uses 4 byte alignment for 64 bit quantities,
  84  * so we need to pack this structure.
  85  */
  86 struct compat_flock64 {
  87         short           l_type;
  88         short           l_whence;
  89         compat_loff_t   l_start;
  90         compat_loff_t   l_len;
  91         compat_pid_t    l_pid;
  92 } __attribute__((packed));
  93
  94 struct compat_statfs {
  95         int             f_type;
  96         int             f_bsize;
  97         int             f_blocks;
  98         int             f_bfree;
  99         int             f_bavail;
 100         int             f_files;
 101         int             f_ffree;
 102         compat_fsid_t   f_fsid;
 103         int             f_namelen;      /* SunOS ignores this field. */
 104         int             f_frsize;
 105         int             f_spare[5];
 106 };
 107
 108 #define COMPAT_RLIM_OLD_INFINITY       0x7fffffff
 109 #define COMPAT_RLIM_INFINITY           0xffffffff
 110
 111 typedef u32             compat_old_sigset_t;    /* at least 32 bits */
 112
 113 #define _COMPAT_NSIG            64
 114 #define _COMPAT_NSIG_BPW        32
 115
 116 typedef u32             compat_sigset_word;
 117
 118 #define COMPAT_OFF_T_MAX        0x7fffffff
 119 #define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
 120
 121 struct compat_ipc64_perm {
 122         compat_key_t key;
 123         __compat_uid32_t uid;
 124         __compat_gid32_t gid;
 125         __compat_uid32_t cuid;
 126         __compat_gid32_t cgid;
 127         unsigned short mode;
 128         unsigned short __pad1;
 129         unsigned short seq;
 130         unsigned short __pad2;
 131         compat_ulong_t unused1;
 132         compat_ulong_t unused2;
 133 };
 134
 135 struct compat_semid64_ds {
 136         struct compat_ipc64_perm sem_perm;
 137         compat_time_t  sem_otime;
 138         compat_ulong_t __unused1;
 139         compat_time_t  sem_ctime;
 140         compat_ulong_t __unused2;
 141         compat_ulong_t sem_nsems;
 142         compat_ulong_t __unused3;
 143         compat_ulong_t __unused4;
 144 };
 145
 146 struct compat_msqid64_ds {
 147         struct compat_ipc64_perm msg_perm;
 148         compat_time_t  msg_stime;
 149         compat_ulong_t __unused1;
 150         compat_time_t  msg_rtime;
 151         compat_ulong_t __unused2;
 152         compat_time_t  msg_ctime;
 153         compat_ulong_t __unused3;
 154         compat_ulong_t msg_cbytes;
 155         compat_ulong_t msg_qnum;
 156         compat_ulong_t msg_qbytes;
 157         compat_pid_t   msg_lspid;
 158         compat_pid_t   msg_lrpid;
 159         compat_ulong_t __unused4;
 160         compat_ulong_t __unused5;
 161 };
 162
 163 struct compat_shmid64_ds {
 164         struct compat_ipc64_perm shm_perm;
 165         compat_size_t  shm_segsz;
 166         compat_time_t  shm_atime;
 167         compat_ulong_t __unused1;
 168         compat_time_t  shm_dtime;
 169         compat_ulong_t __unused2;
 170         compat_time_t  shm_ctime;
 171         compat_ulong_t __unused3;
 172         compat_pid_t   shm_cpid;
 173         compat_pid_t   shm_lpid;
 174         compat_ulong_t shm_nattch;
 175         compat_ulong_t __unused4;
 176         compat_ulong_t __unused5;
 177 };
 178
 179 /*
 180  * A pointer passed in from user mode. This should not be used for syscall parameters,
 181  * just declare them as pointers because the syscall entry code will have appropriately
 182  * comverted them already.
 183  */
 184 typedef u32             compat_uptr_t;
 185
 186 static inline void __user *
 187 compat_ptr (compat_uptr_t uptr)
 188 {
 189         return (void __user *) (unsigned long) uptr;
 190 }
 191
 192 static __inline__ void __user *
 193 compat_alloc_user_space (long len)
 194 {
 195         struct pt_regs *regs = ia64_task_regs(current);
 196         return (void __user *) (((regs->r12 & 0xffffffff) & -16) - len);
 197 }
 198
 199 #endif /* _ASM_IA64_COMPAT_H */