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_USER_HZ 100 12 #define COMPAT_UTS_MACHINE "parisc\0\0" 13 14 typedef u32 compat_size_t; 15 typedef s32 compat_ssize_t; 16 typedef s32 compat_time_t; 17 typedef s32 compat_clock_t; 18 typedef s32 compat_pid_t; 19 typedef u32 __compat_uid_t; 20 typedef u32 __compat_gid_t; 21 typedef u32 __compat_uid32_t; 22 typedef u32 __compat_gid32_t; 23 typedef u16 compat_mode_t; 24 typedef u32 compat_ino_t; 25 typedef u32 compat_dev_t; 26 typedef s32 compat_off_t; 27 typedef s64 compat_loff_t; 28 typedef u16 compat_nlink_t; 29 typedef u16 compat_ipc_pid_t; 30 typedef s32 compat_daddr_t; 31 typedef u32 compat_caddr_t; 32 typedef s32 compat_key_t; 33 typedef s32 compat_timer_t; 34 35 typedef s32 compat_int_t; 36 typedef s32 compat_long_t; 37 typedef s64 compat_s64; 38 typedef u32 compat_uint_t; 39 typedef u32 compat_ulong_t; 40 typedef u64 compat_u64; 41 typedef u32 compat_uptr_t; 42 43 struct compat_timespec { 44 compat_time_t tv_sec; 45 s32 tv_nsec; 46 }; 47 48 struct compat_timeval { 49 compat_time_t tv_sec; 50 s32 tv_usec; 51 }; 52 53 struct compat_stat { 54 compat_dev_t st_dev; /* dev_t is 32 bits on parisc */ 55 compat_ino_t st_ino; /* 32 bits */ 56 compat_mode_t st_mode; /* 16 bits */ 57 compat_nlink_t st_nlink; /* 16 bits */ 58 u16 st_reserved1; /* old st_uid */ 59 u16 st_reserved2; /* old st_gid */ 60 compat_dev_t st_rdev; 61 compat_off_t st_size; 62 compat_time_t st_atime; 63 u32 st_atime_nsec; 64 compat_time_t st_mtime; 65 u32 st_mtime_nsec; 66 compat_time_t st_ctime; 67 u32 st_ctime_nsec; 68 s32 st_blksize; 69 s32 st_blocks; 70 u32 __unused1; /* ACL stuff */ 71 compat_dev_t __unused2; /* network */ 72 compat_ino_t __unused3; /* network */ 73 u32 __unused4; /* cnodes */ 74 u16 __unused5; /* netsite */ 75 short st_fstype; 76 compat_dev_t st_realdev; 77 u16 st_basemode; 78 u16 st_spareshort; 79 __compat_uid32_t st_uid; 80 __compat_gid32_t st_gid; 81 u32 st_spare4[3]; 82 }; 83 84 struct compat_flock { 85 short l_type; 86 short l_whence; 87 compat_off_t l_start; 88 compat_off_t l_len; 89 compat_pid_t l_pid; 90 }; 91 92 struct compat_flock64 { 93 short l_type; 94 short l_whence; 95 compat_loff_t l_start; 96 compat_loff_t l_len; 97 compat_pid_t l_pid; 98 }; 99 100 struct compat_statfs { 101 s32 f_type; 102 s32 f_bsize; 103 s32 f_blocks; 104 s32 f_bfree; 105 s32 f_bavail; 106 s32 f_files; 107 s32 f_ffree; 108 __kernel_fsid_t f_fsid; 109 s32 f_namelen; 110 s32 f_frsize; 111 s32 f_flags; 112 s32 f_spare[4]; 113 }; 114 115 struct compat_sigcontext { 116 compat_int_t sc_flags; 117 compat_int_t sc_gr[32]; /* PSW in sc_gr[0] */ 118 u64 sc_fr[32]; 119 compat_int_t sc_iasq[2]; 120 compat_int_t sc_iaoq[2]; 121 compat_int_t sc_sar; /* cr11 */ 122 }; 123 124 #define COMPAT_RLIM_INFINITY 0xffffffff 125 126 typedef u32 compat_old_sigset_t; /* at least 32 bits */ 127 128 #define _COMPAT_NSIG 64 129 #define _COMPAT_NSIG_BPW 32 130 131 typedef u32 compat_sigset_word; 132 133 typedef union compat_sigval { 134 compat_int_t sival_int; 135 compat_uptr_t sival_ptr; 136 } compat_sigval_t; 137 138 typedef struct compat_siginfo { 139 int si_signo; 140 int si_errno; 141 int si_code; 142 143 union { 144 int _pad[128/sizeof(int) - 3]; 145 146 /* kill() */ 147 struct { 148 unsigned int _pid; /* sender's pid */ 149 unsigned int _uid; /* sender's uid */ 150 } _kill; 151 152 /* POSIX.1b timers */ 153 struct { 154 compat_timer_t _tid; /* timer id */ 155 int _overrun; /* overrun count */ 156 char _pad[sizeof(unsigned int) - sizeof(int)]; 157 compat_sigval_t _sigval; /* same as below */ 158 int _sys_private; /* not to be passed to user */ 159 } _timer; 160 161 /* POSIX.1b signals */ 162 struct { 163 unsigned int _pid; /* sender's pid */ 164 unsigned int _uid; /* sender's uid */ 165 compat_sigval_t _sigval; 166 } _rt; 167 168 /* SIGCHLD */ 169 struct { 170 unsigned int _pid; /* which child */ 171 unsigned int _uid; /* sender's uid */ 172 int _status; /* exit code */ 173 compat_clock_t _utime; 174 compat_clock_t _stime; 175 } _sigchld; 176 177 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ 178 struct { 179 unsigned int _addr; /* faulting insn/memory ref. */ 180 } _sigfault; 181 182 /* SIGPOLL */ 183 struct { 184 int _band; /* POLL_IN, POLL_OUT, POLL_MSG */ 185 int _fd; 186 } _sigpoll; 187 188 /* SIGSYS */ 189 struct { 190 compat_uptr_t _call_addr; /* calling user insn */ 191 int _syscall; /* triggering system call number */ 192 compat_uint_t _arch; /* AUDIT_ARCH_* of syscall */ 193 } _sigsys; 194 } _sifields; 195 } compat_siginfo_t; 196 197 #define COMPAT_OFF_T_MAX 0x7fffffff 198 199 struct compat_ipc64_perm { 200 compat_key_t key; 201 __compat_uid_t uid; 202 __compat_gid_t gid; 203 __compat_uid_t cuid; 204 __compat_gid_t cgid; 205 unsigned short int __pad1; 206 compat_mode_t mode; 207 unsigned short int __pad2; 208 unsigned short int seq; 209 unsigned int __pad3; 210 unsigned long __unused1; /* yes they really are 64bit pads */ 211 unsigned long __unused2; 212 }; 213 214 struct compat_semid64_ds { 215 struct compat_ipc64_perm sem_perm; 216 unsigned int __unused1; 217 compat_time_t sem_otime; 218 unsigned int __unused2; 219 compat_time_t sem_ctime; 220 compat_ulong_t sem_nsems; 221 compat_ulong_t __unused3; 222 compat_ulong_t __unused4; 223 }; 224 225 struct compat_msqid64_ds { 226 struct compat_ipc64_perm msg_perm; 227 unsigned int __unused1; 228 compat_time_t msg_stime; 229 unsigned int __unused2; 230 compat_time_t msg_rtime; 231 unsigned int __unused3; 232 compat_time_t msg_ctime; 233 compat_ulong_t msg_cbytes; 234 compat_ulong_t msg_qnum; 235 compat_ulong_t msg_qbytes; 236 compat_pid_t msg_lspid; 237 compat_pid_t msg_lrpid; 238 compat_ulong_t __unused4; 239 compat_ulong_t __unused5; 240 }; 241 242 struct compat_shmid64_ds { 243 struct compat_ipc64_perm shm_perm; 244 unsigned int __unused1; 245 compat_time_t shm_atime; 246 unsigned int __unused2; 247 compat_time_t shm_dtime; 248 unsigned int __unused3; 249 compat_time_t shm_ctime; 250 unsigned int __unused4; 251 compat_size_t shm_segsz; 252 compat_pid_t shm_cpid; 253 compat_pid_t shm_lpid; 254 compat_ulong_t shm_nattch; 255 compat_ulong_t __unused5; 256 compat_ulong_t __unused6; 257 }; 258 259 /* 260 * A pointer passed in from user mode. This should not 261 * be used for syscall parameters, just declare them 262 * as pointers because the syscall entry code will have 263 * appropriately converted them already. 264 */ 265 266 static inline void __user *compat_ptr(compat_uptr_t uptr) 267 { 268 return (void __user *)(unsigned long)uptr; 269 } 270 271 static inline compat_uptr_t ptr_to_compat(void __user *uptr) 272 { 273 return (u32)(unsigned long)uptr; 274 } 275 276 static __inline__ void __user *arch_compat_alloc_user_space(long len) 277 { 278 struct pt_regs *regs = ¤t->thread.regs; 279 return (void __user *)regs->gr[30]; 280 } 281 282 static inline int __is_compat_task(struct task_struct *t) 283 { 284 return test_ti_thread_flag(task_thread_info(t), TIF_32BIT); 285 } 286 287 static inline int is_compat_task(void) 288 { 289 return __is_compat_task(current); 290 } 291 292 #endif /* _ASM_PARISC_COMPAT_H */ 293