arch/powerpc/include/asm/compat.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_POWERPC_COMPAT_H
   3 #define _ASM_POWERPC_COMPAT_H
   4 #ifdef __KERNEL__
   5 /*
   6  * Architecture specific compatibility types
   7  */
   8 #include <linux/types.h>
   9 #include <linux/sched.h>
  10
  11 #include <asm-generic/compat.h>
  12
  13 #define COMPAT_USER_HZ          100
  14 #ifdef __BIG_ENDIAN__
  15 #define COMPAT_UTS_MACHINE      "ppc\0\0"
  16 #else
  17 #define COMPAT_UTS_MACHINE      "ppcle\0\0"
  18 #endif
  19
  20 typedef u32             __compat_uid_t;
  21 typedef u32             __compat_gid_t;
  22 typedef u32             compat_dev_t;
  23 typedef s16             compat_nlink_t;
  24 typedef u16             compat_ipc_pid_t;
  25 typedef __kernel_fsid_t compat_fsid_t;
  26
  27 struct compat_stat {
  28         compat_dev_t    st_dev;
  29         compat_ino_t    st_ino;
  30         compat_mode_t   st_mode;
  31         compat_nlink_t  st_nlink;
  32         __compat_uid32_t        st_uid;
  33         __compat_gid32_t        st_gid;
  34         compat_dev_t    st_rdev;
  35         compat_off_t    st_size;
  36         compat_off_t    st_blksize;
  37         compat_off_t    st_blocks;
  38         old_time32_t    st_atime;
  39         u32             st_atime_nsec;
  40         old_time32_t    st_mtime;
  41         u32             st_mtime_nsec;
  42         old_time32_t    st_ctime;
  43         u32             st_ctime_nsec;
  44         u32             __unused4[2];
  45 };
  46
  47 struct compat_flock {
  48         short           l_type;
  49         short           l_whence;
  50         compat_off_t    l_start;
  51         compat_off_t    l_len;
  52         compat_pid_t    l_pid;
  53 };
  54
  55 #define F_GETLK64       12      /*  using 'struct flock64' */
  56 #define F_SETLK64       13
  57 #define F_SETLKW64      14
  58
  59 struct compat_flock64 {
  60         short           l_type;
  61         short           l_whence;
  62         compat_loff_t   l_start;
  63         compat_loff_t   l_len;
  64         compat_pid_t    l_pid;
  65 };
  66
  67 struct compat_statfs {
  68         int             f_type;
  69         int             f_bsize;
  70         int             f_blocks;
  71         int             f_bfree;
  72         int             f_bavail;
  73         int             f_files;
  74         int             f_ffree;
  75         compat_fsid_t   f_fsid;
  76         int             f_namelen;      /* SunOS ignores this field. */
  77         int             f_frsize;
  78         int             f_flags;
  79         int             f_spare[4];
  80 };
  81
  82 #define COMPAT_RLIM_INFINITY            0xffffffff
  83
  84 #define COMPAT_OFF_T_MAX        0x7fffffff
  85
  86 /*
  87  * ipc64_perm is actually 32/64bit clean but since the compat layer refers to
  88  * it we may as well define it.
  89  */
  90 struct compat_ipc64_perm {
  91         compat_key_t key;
  92         __compat_uid_t uid;
  93         __compat_gid_t gid;
  94         __compat_uid_t cuid;
  95         __compat_gid_t cgid;
  96         compat_mode_t mode;
  97         unsigned int seq;
  98         unsigned int __pad2;
  99         unsigned long __unused1;        /* yes they really are 64bit pads */
 100         unsigned long __unused2;
 101 };
 102
 103 struct compat_semid64_ds {
 104         struct compat_ipc64_perm sem_perm;
 105         unsigned int sem_otime_high;
 106         unsigned int sem_otime;
 107         unsigned int sem_ctime_high;
 108         unsigned int sem_ctime;
 109         compat_ulong_t sem_nsems;
 110         compat_ulong_t __unused3;
 111         compat_ulong_t __unused4;
 112 };
 113
 114 struct compat_msqid64_ds {
 115         struct compat_ipc64_perm msg_perm;
 116         unsigned int msg_stime_high;
 117         unsigned int msg_stime;
 118         unsigned int msg_rtime_high;
 119         unsigned int msg_rtime;
 120         unsigned int msg_ctime_high;
 121         unsigned int msg_ctime;
 122         compat_ulong_t msg_cbytes;
 123         compat_ulong_t msg_qnum;
 124         compat_ulong_t msg_qbytes;
 125         compat_pid_t msg_lspid;
 126         compat_pid_t msg_lrpid;
 127         compat_ulong_t __unused4;
 128         compat_ulong_t __unused5;
 129 };
 130
 131 struct compat_shmid64_ds {
 132         struct compat_ipc64_perm shm_perm;
 133         unsigned int shm_atime_high;
 134         unsigned int shm_atime;
 135         unsigned int shm_dtime_high;
 136         unsigned int shm_dtime;
 137         unsigned int shm_ctime_high;
 138         unsigned int shm_ctime;
 139         unsigned int __unused4;
 140         compat_size_t shm_segsz;
 141         compat_pid_t shm_cpid;
 142         compat_pid_t shm_lpid;
 143         compat_ulong_t shm_nattch;
 144         compat_ulong_t __unused5;
 145         compat_ulong_t __unused6;
 146 };
 147
 148 static inline int is_compat_task(void)
 149 {
 150         return is_32bit_task();
 151 }
 152
 153 #endif /* __KERNEL__ */
 154 #endif /* _ASM_POWERPC_COMPAT_H */