arch/parisc/include/asm/compat.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_PARISC_COMPAT_H
   3 #define _ASM_PARISC_COMPAT_H
   4 /*
   5  * Architecture specific compatibility types
   6  */
   7 #include <linux/types.h>
   8 #include <linux/sched.h>
   9 #include <linux/thread_info.h>
  10
  11 #include <asm-generic/compat.h>
  12
  13 #define COMPAT_USER_HZ          100
  14 #define COMPAT_UTS_MACHINE      "parisc\0\0"
  15
  16 typedef u32     __compat_uid_t;
  17 typedef u32     __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_dev_t;
  22 typedef u16     compat_nlink_t;
  23 typedef u16     compat_ipc_pid_t;
  24 typedef u32     compat_caddr_t;
  25
  26 struct compat_stat {
  27         compat_dev_t            st_dev; /* dev_t is 32 bits on parisc */
  28         compat_ino_t            st_ino; /* 32 bits */
  29         compat_mode_t           st_mode;        /* 16 bits */
  30         compat_nlink_t          st_nlink;       /* 16 bits */
  31         u16                     st_reserved1;   /* old st_uid */
  32         u16                     st_reserved2;   /* old st_gid */
  33         compat_dev_t            st_rdev;
  34         compat_off_t            st_size;
  35         old_time32_t            st_atime;
  36         u32                     st_atime_nsec;
  37         old_time32_t            st_mtime;
  38         u32                     st_mtime_nsec;
  39         old_time32_t            st_ctime;
  40         u32                     st_ctime_nsec;
  41         s32                     st_blksize;
  42         s32                     st_blocks;
  43         u32                     __unused1;      /* ACL stuff */
  44         compat_dev_t            __unused2;      /* network */
  45         compat_ino_t            __unused3;      /* network */
  46         u32                     __unused4;      /* cnodes */
  47         u16                     __unused5;      /* netsite */
  48         short                   st_fstype;
  49         compat_dev_t            st_realdev;
  50         u16                     st_basemode;
  51         u16                     st_spareshort;
  52         __compat_uid32_t        st_uid;
  53         __compat_gid32_t        st_gid;
  54         u32                     st_spare4[3];
  55 };
  56
  57 struct compat_flock {
  58         short                   l_type;
  59         short                   l_whence;
  60         compat_off_t            l_start;
  61         compat_off_t            l_len;
  62         compat_pid_t            l_pid;
  63 };
  64
  65 struct compat_flock64 {
  66         short                   l_type;
  67         short                   l_whence;
  68         compat_loff_t           l_start;
  69         compat_loff_t           l_len;
  70         compat_pid_t            l_pid;
  71 };
  72
  73 struct compat_statfs {
  74         s32             f_type;
  75         s32             f_bsize;
  76         s32             f_blocks;
  77         s32             f_bfree;
  78         s32             f_bavail;
  79         s32             f_files;
  80         s32             f_ffree;
  81         __kernel_fsid_t f_fsid;
  82         s32             f_namelen;
  83         s32             f_frsize;
  84         s32             f_flags;
  85         s32             f_spare[4];
  86 };
  87
  88 struct compat_sigcontext {
  89         compat_int_t sc_flags;
  90         compat_int_t sc_gr[32]; /* PSW in sc_gr[0] */
  91         u64 sc_fr[32];
  92         compat_int_t sc_iasq[2];
  93         compat_int_t sc_iaoq[2];
  94         compat_int_t sc_sar; /* cr11 */
  95 };
  96
  97 #define COMPAT_RLIM_INFINITY 0xffffffff
  98
  99 typedef u32             compat_old_sigset_t;    /* at least 32 bits */
 100
 101 #define _COMPAT_NSIG            64
 102 #define _COMPAT_NSIG_BPW        32
 103
 104 typedef u32             compat_sigset_word;
 105
 106 #define COMPAT_OFF_T_MAX        0x7fffffff
 107
 108 struct compat_ipc64_perm {
 109         compat_key_t key;
 110         __compat_uid_t uid;
 111         __compat_gid_t gid;
 112         __compat_uid_t cuid;
 113         __compat_gid_t cgid;
 114         unsigned short int __pad1;
 115         compat_mode_t mode;
 116         unsigned short int __pad2;
 117         unsigned short int seq;
 118         unsigned int __pad3;
 119         unsigned long __unused1;        /* yes they really are 64bit pads */
 120         unsigned long __unused2;
 121 };
 122
 123 struct compat_semid64_ds {
 124         struct compat_ipc64_perm sem_perm;
 125         unsigned int sem_otime_high;
 126         unsigned int sem_otime;
 127         unsigned int sem_ctime_high;
 128         unsigned int sem_ctime;
 129         compat_ulong_t sem_nsems;
 130         compat_ulong_t __unused3;
 131         compat_ulong_t __unused4;
 132 };
 133
 134 struct compat_msqid64_ds {
 135         struct compat_ipc64_perm msg_perm;
 136         unsigned int msg_stime_high;
 137         unsigned int msg_stime;
 138         unsigned int msg_rtime_high;
 139         unsigned int msg_rtime;
 140         unsigned int msg_ctime_high;
 141         unsigned int msg_ctime;
 142         compat_ulong_t msg_cbytes;
 143         compat_ulong_t msg_qnum;
 144         compat_ulong_t msg_qbytes;
 145         compat_pid_t msg_lspid;
 146         compat_pid_t msg_lrpid;
 147         compat_ulong_t __unused4;
 148         compat_ulong_t __unused5;
 149 };
 150
 151 struct compat_shmid64_ds {
 152         struct compat_ipc64_perm shm_perm;
 153         unsigned int shm_atime_high;
 154         unsigned int shm_atime;
 155         unsigned int shm_dtime_high;
 156         unsigned int shm_dtime;
 157         unsigned int shm_ctime_high;
 158         unsigned int shm_ctime;
 159         unsigned int __unused4;
 160         compat_size_t shm_segsz;
 161         compat_pid_t shm_cpid;
 162         compat_pid_t shm_lpid;
 163         compat_ulong_t shm_nattch;
 164         compat_ulong_t __unused5;
 165         compat_ulong_t __unused6;
 166 };
 167
 168 /*
 169  * The type of struct elf_prstatus.pr_reg in compatible core dumps.
 170  */
 171 #define COMPAT_ELF_NGREG 80
 172 typedef compat_ulong_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
 173
 174 static __inline__ void __user *arch_compat_alloc_user_space(long len)
 175 {
 176         struct pt_regs *regs = &current->thread.regs;
 177         return (void __user *)regs->gr[30];
 178 }
 179
 180 static inline int __is_compat_task(struct task_struct *t)
 181 {
 182         return test_tsk_thread_flag(t, TIF_32BIT);
 183 }
 184
 185 static inline int is_compat_task(void)
 186 {
 187         return __is_compat_task(current);
 188 }
 189
 190 #endif /* _ASM_PARISC_COMPAT_H */