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   1 #ifndef _ASM_PARISC_COMPAT_H
   2 #define _ASM_PARISC_COMPAT_H
   3 /*
   4  * Architecture specific compatibility types
   5  */
   6 #include <linux/types.h>
   7 #include <linux/sched.h>
   8 #include <linux/thread_info.h>
   9
  10 #define COMPAT_USER_HZ 100
  11
  12 typedef u32     compat_size_t;
  13 typedef s32     compat_ssize_t;
  14 typedef s32     compat_time_t;
  15 typedef s32     compat_clock_t;
  16 typedef s32     compat_pid_t;
  17 typedef u32     __compat_uid_t;
  18 typedef u32     __compat_gid_t;
  19 typedef u32     __compat_uid32_t;
  20 typedef u32     __compat_gid32_t;
  21 typedef u16     compat_mode_t;
  22 typedef u32     compat_ino_t;
  23 typedef u32     compat_dev_t;
  24 typedef s32     compat_off_t;
  25 typedef s64     compat_loff_t;
  26 typedef u16     compat_nlink_t;
  27 typedef u16     compat_ipc_pid_t;
  28 typedef s32     compat_daddr_t;
  29 typedef u32     compat_caddr_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; /* dev_t is 32 bits on parisc */
  49         compat_ino_t            st_ino; /* 32 bits */
  50         compat_mode_t           st_mode;        /* 16 bits */
  51         compat_nlink_t          st_nlink;       /* 16 bits */
  52         u16                     st_reserved1;   /* old st_uid */
  53         u16                     st_reserved2;   /* old st_gid */
  54         compat_dev_t            st_rdev;
  55         compat_off_t            st_size;
  56         compat_time_t           st_atime;
  57         u32                     st_atime_nsec;
  58         compat_time_t           st_mtime;
  59         u32                     st_mtime_nsec;
  60         compat_time_t           st_ctime;
  61         u32                     st_ctime_nsec;
  62         s32                     st_blksize;
  63         s32                     st_blocks;
  64         u32                     __unused1;      /* ACL stuff */
  65         compat_dev_t            __unused2;      /* network */
  66         compat_ino_t            __unused3;      /* network */
  67         u32                     __unused4;      /* cnodes */
  68         u16                     __unused5;      /* netsite */
  69         short                   st_fstype;
  70         compat_dev_t            st_realdev;
  71         u16                     st_basemode;
  72         u16                     st_spareshort;
  73         __compat_uid32_t        st_uid;
  74         __compat_gid32_t        st_gid;
  75         u32                     st_spare4[3];
  76 };
  77
  78 struct compat_flock {
  79         short                   l_type;
  80         short                   l_whence;
  81         compat_off_t            l_start;
  82         compat_off_t            l_len;
  83         compat_pid_t            l_pid;
  84 };
  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 };
  93
  94 struct compat_statfs {
  95         s32             f_type;
  96         s32             f_bsize;
  97         s32             f_blocks;
  98         s32             f_bfree;
  99         s32             f_bavail;
 100         s32             f_files;
 101         s32             f_ffree;
 102         __kernel_fsid_t f_fsid;
 103         s32             f_namelen;
 104         s32             f_frsize;
 105         s32             f_spare[5];
 106 };
 107
 108 struct compat_sigcontext {
 109         compat_int_t sc_flags;
 110         compat_int_t sc_gr[32]; /* PSW in sc_gr[0] */
 111         u64 sc_fr[32];
 112         compat_int_t sc_iasq[2];
 113         compat_int_t sc_iaoq[2];
 114         compat_int_t sc_sar; /* cr11 */
 115 };
 116
 117 #define COMPAT_RLIM_INFINITY 0xffffffff
 118
 119 typedef u32             compat_old_sigset_t;    /* at least 32 bits */
 120
 121 #define _COMPAT_NSIG            64
 122 #define _COMPAT_NSIG_BPW        32
 123
 124 typedef u32             compat_sigset_word;
 125
 126 #define COMPAT_OFF_T_MAX        0x7fffffff
 127 #define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
 128
 129 /*
 130  * A pointer passed in from user mode. This should not
 131  * be used for syscall parameters, just declare them
 132  * as pointers because the syscall entry code will have
 133  * appropriately comverted them already.
 134  */
 135 typedef u32             compat_uptr_t;
 136
 137 static inline void __user *compat_ptr(compat_uptr_t uptr)
 138 {
 139         return (void __user *)(unsigned long)uptr;
 140 }
 141
 142 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
 143 {
 144         return (u32)(unsigned long)uptr;
 145 }
 146
 147 static __inline__ void __user *compat_alloc_user_space(long len)
 148 {
 149         struct pt_regs *regs = &current->thread.regs;
 150         return (void __user *)regs->gr[30];
 151 }
 152
 153 static inline int __is_compat_task(struct task_struct *t)
 154 {
 155         return test_ti_thread_flag(t->thread_info, TIF_32BIT);
 156 }
 157
 158 static inline int is_compat_task(void)
 159 {
 160         return __is_compat_task(current);
 161 }
 162
 163 #endif /* _ASM_PARISC_COMPAT_H */