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 #define compat_mode_t compat_mode_t
  12 typedef u16     compat_mode_t;
  13
  14 #include <asm-generic/compat.h>
  15
  16 #define COMPAT_USER_HZ          100
  17 #define COMPAT_UTS_MACHINE      "parisc\0\0"
  18
  19 typedef u32     __compat_uid_t;
  20 typedef u32     __compat_gid_t;
  21 typedef u32     compat_dev_t;
  22 typedef u16     compat_nlink_t;
  23 typedef u16     compat_ipc_pid_t;
  24
  25 struct compat_stat {
  26         compat_dev_t            st_dev; /* dev_t is 32 bits on parisc */
  27         compat_ino_t            st_ino; /* 32 bits */
  28         compat_mode_t           st_mode;        /* 16 bits */
  29         compat_nlink_t          st_nlink;       /* 16 bits */
  30         u16                     st_reserved1;   /* old st_uid */
  31         u16                     st_reserved2;   /* old st_gid */
  32         compat_dev_t            st_rdev;
  33         compat_off_t            st_size;
  34         old_time32_t            st_atime;
  35         u32                     st_atime_nsec;
  36         old_time32_t            st_mtime;
  37         u32                     st_mtime_nsec;
  38         old_time32_t            st_ctime;
  39         u32                     st_ctime_nsec;
  40         s32                     st_blksize;
  41         s32                     st_blocks;
  42         u32                     __unused1;      /* ACL stuff */
  43         compat_dev_t            __unused2;      /* network */
  44         compat_ino_t            __unused3;      /* network */
  45         u32                     __unused4;      /* cnodes */
  46         u16                     __unused5;      /* netsite */
  47         short                   st_fstype;
  48         compat_dev_t            st_realdev;
  49         u16                     st_basemode;
  50         u16                     st_spareshort;
  51         __compat_uid32_t        st_uid;
  52         __compat_gid32_t        st_gid;
  53         u32                     st_spare4[3];
  54 };
  55
  56 struct compat_flock {
  57         short                   l_type;
  58         short                   l_whence;
  59         compat_off_t            l_start;
  60         compat_off_t            l_len;
  61         compat_pid_t            l_pid;
  62 };
  63
  64 struct compat_flock64 {
  65         short                   l_type;
  66         short                   l_whence;
  67         compat_loff_t           l_start;
  68         compat_loff_t           l_len;
  69         compat_pid_t            l_pid;
  70 };
  71
  72 struct compat_statfs {
  73         s32             f_type;
  74         s32             f_bsize;
  75         s32             f_blocks;
  76         s32             f_bfree;
  77         s32             f_bavail;
  78         s32             f_files;
  79         s32             f_ffree;
  80         __kernel_fsid_t f_fsid;
  81         s32             f_namelen;
  82         s32             f_frsize;
  83         s32             f_flags;
  84         s32             f_spare[4];
  85 };
  86
  87 struct compat_sigcontext {
  88         compat_int_t sc_flags;
  89         compat_int_t sc_gr[32]; /* PSW in sc_gr[0] */
  90         u64 sc_fr[32];
  91         compat_int_t sc_iasq[2];
  92         compat_int_t sc_iaoq[2];
  93         compat_int_t sc_sar; /* cr11 */
  94 };
  95
  96 #define COMPAT_RLIM_INFINITY 0xffffffff
  97
  98 #define COMPAT_OFF_T_MAX        0x7fffffff
  99
 100 struct compat_ipc64_perm {
 101         compat_key_t key;
 102         __compat_uid_t uid;
 103         __compat_gid_t gid;
 104         __compat_uid_t cuid;
 105         __compat_gid_t cgid;
 106         unsigned short int __pad1;
 107         compat_mode_t mode;
 108         unsigned short int __pad2;
 109         unsigned short int seq;
 110         unsigned int __pad3;
 111         unsigned long __unused1;        /* yes they really are 64bit pads */
 112         unsigned long __unused2;
 113 };
 114
 115 struct compat_semid64_ds {
 116         struct compat_ipc64_perm sem_perm;
 117         unsigned int sem_otime_high;
 118         unsigned int sem_otime;
 119         unsigned int sem_ctime_high;
 120         unsigned int sem_ctime;
 121         compat_ulong_t sem_nsems;
 122         compat_ulong_t __unused3;
 123         compat_ulong_t __unused4;
 124 };
 125
 126 struct compat_msqid64_ds {
 127         struct compat_ipc64_perm msg_perm;
 128         unsigned int msg_stime_high;
 129         unsigned int msg_stime;
 130         unsigned int msg_rtime_high;
 131         unsigned int msg_rtime;
 132         unsigned int msg_ctime_high;
 133         unsigned int msg_ctime;
 134         compat_ulong_t msg_cbytes;
 135         compat_ulong_t msg_qnum;
 136         compat_ulong_t msg_qbytes;
 137         compat_pid_t msg_lspid;
 138         compat_pid_t msg_lrpid;
 139         compat_ulong_t __unused4;
 140         compat_ulong_t __unused5;
 141 };
 142
 143 struct compat_shmid64_ds {
 144         struct compat_ipc64_perm shm_perm;
 145         unsigned int shm_atime_high;
 146         unsigned int shm_atime;
 147         unsigned int shm_dtime_high;
 148         unsigned int shm_dtime;
 149         unsigned int shm_ctime_high;
 150         unsigned int shm_ctime;
 151         unsigned int __unused4;
 152         compat_size_t shm_segsz;
 153         compat_pid_t shm_cpid;
 154         compat_pid_t shm_lpid;
 155         compat_ulong_t shm_nattch;
 156         compat_ulong_t __unused5;
 157         compat_ulong_t __unused6;
 158 };
 159
 160 /*
 161  * The type of struct elf_prstatus.pr_reg in compatible core dumps.
 162  */
 163 #define COMPAT_ELF_NGREG 80
 164 typedef compat_ulong_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
 165
 166 static __inline__ void __user *arch_compat_alloc_user_space(long len)
 167 {
 168         struct pt_regs *regs = &current->thread.regs;
 169         return (void __user *)regs->gr[30];
 170 }
 171
 172 static inline int __is_compat_task(struct task_struct *t)
 173 {
 174         return test_tsk_thread_flag(t, TIF_32BIT);
 175 }
 176
 177 static inline int is_compat_task(void)
 178 {
 179         return __is_compat_task(current);
 180 }
 181
 182 #endif /* _ASM_PARISC_COMPAT_H */