1 #ifndef _ASM_S390X_COMPAT_H 2 #define _ASM_S390X_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 __TYPE_IS_PTR(t) (!__builtin_types_compatible_p(typeof(0?(t)0:0ULL), u64)) 11 #define __SC_DELOUSE(t,v) (t)(__TYPE_IS_PTR(t) ? ((v) & 0x7fffffff) : (v)) 12 13 #define PSW32_MASK_PER 0x40000000UL 14 #define PSW32_MASK_DAT 0x04000000UL 15 #define PSW32_MASK_IO 0x02000000UL 16 #define PSW32_MASK_EXT 0x01000000UL 17 #define PSW32_MASK_KEY 0x00F00000UL 18 #define PSW32_MASK_BASE 0x00080000UL /* Always one */ 19 #define PSW32_MASK_MCHECK 0x00040000UL 20 #define PSW32_MASK_WAIT 0x00020000UL 21 #define PSW32_MASK_PSTATE 0x00010000UL 22 #define PSW32_MASK_ASC 0x0000C000UL 23 #define PSW32_MASK_CC 0x00003000UL 24 #define PSW32_MASK_PM 0x00000f00UL 25 #define PSW32_MASK_RI 0x00000080UL 26 27 #define PSW32_MASK_USER 0x0000FF00UL 28 29 #define PSW32_ADDR_AMODE 0x80000000UL 30 #define PSW32_ADDR_INSN 0x7FFFFFFFUL 31 32 #define PSW32_DEFAULT_KEY (((u32) PAGE_DEFAULT_ACC) << 20) 33 34 #define PSW32_ASC_PRIMARY 0x00000000UL 35 #define PSW32_ASC_ACCREG 0x00004000UL 36 #define PSW32_ASC_SECONDARY 0x00008000UL 37 #define PSW32_ASC_HOME 0x0000C000UL 38 39 #define PSW32_USER_BITS (PSW32_MASK_DAT | PSW32_MASK_IO | PSW32_MASK_EXT | \ 40 PSW32_DEFAULT_KEY | PSW32_MASK_BASE | \ 41 PSW32_MASK_MCHECK | PSW32_MASK_PSTATE | \ 42 PSW32_ASC_PRIMARY) 43 44 #define COMPAT_USER_HZ 100 45 #define COMPAT_UTS_MACHINE "s390\0\0\0\0" 46 47 typedef u32 compat_size_t; 48 typedef s32 compat_ssize_t; 49 typedef s32 compat_time_t; 50 typedef s32 compat_clock_t; 51 typedef s32 compat_pid_t; 52 typedef u16 __compat_uid_t; 53 typedef u16 __compat_gid_t; 54 typedef u32 __compat_uid32_t; 55 typedef u32 __compat_gid32_t; 56 typedef u16 compat_mode_t; 57 typedef u32 compat_ino_t; 58 typedef u16 compat_dev_t; 59 typedef s32 compat_off_t; 60 typedef s64 compat_loff_t; 61 typedef u16 compat_nlink_t; 62 typedef u16 compat_ipc_pid_t; 63 typedef s32 compat_daddr_t; 64 typedef u32 compat_caddr_t; 65 typedef __kernel_fsid_t compat_fsid_t; 66 typedef s32 compat_key_t; 67 typedef s32 compat_timer_t; 68 69 typedef s32 compat_int_t; 70 typedef s32 compat_long_t; 71 typedef s64 compat_s64; 72 typedef u32 compat_uint_t; 73 typedef u32 compat_ulong_t; 74 typedef u64 compat_u64; 75 typedef u32 compat_uptr_t; 76 77 typedef struct { 78 u32 mask; 79 u32 addr; 80 } __aligned(8) psw_compat_t; 81 82 typedef struct { 83 psw_compat_t psw; 84 u32 gprs[NUM_GPRS]; 85 u32 acrs[NUM_ACRS]; 86 u32 orig_gpr2; 87 } s390_compat_regs; 88 89 typedef struct { 90 u32 gprs_high[NUM_GPRS]; 91 } s390_compat_regs_high; 92 93 struct compat_timespec { 94 compat_time_t tv_sec; 95 s32 tv_nsec; 96 }; 97 98 struct compat_timeval { 99 compat_time_t tv_sec; 100 s32 tv_usec; 101 }; 102 103 struct compat_stat { 104 compat_dev_t st_dev; 105 u16 __pad1; 106 compat_ino_t st_ino; 107 compat_mode_t st_mode; 108 compat_nlink_t st_nlink; 109 __compat_uid_t st_uid; 110 __compat_gid_t st_gid; 111 compat_dev_t st_rdev; 112 u16 __pad2; 113 u32 st_size; 114 u32 st_blksize; 115 u32 st_blocks; 116 u32 st_atime; 117 u32 st_atime_nsec; 118 u32 st_mtime; 119 u32 st_mtime_nsec; 120 u32 st_ctime; 121 u32 st_ctime_nsec; 122 u32 __unused4; 123 u32 __unused5; 124 }; 125 126 struct compat_flock { 127 short l_type; 128 short l_whence; 129 compat_off_t l_start; 130 compat_off_t l_len; 131 compat_pid_t l_pid; 132 }; 133 134 #define F_GETLK64 12 135 #define F_SETLK64 13 136 #define F_SETLKW64 14 137 138 struct compat_flock64 { 139 short l_type; 140 short l_whence; 141 compat_loff_t l_start; 142 compat_loff_t l_len; 143 compat_pid_t l_pid; 144 }; 145 146 struct compat_statfs { 147 u32 f_type; 148 u32 f_bsize; 149 u32 f_blocks; 150 u32 f_bfree; 151 u32 f_bavail; 152 u32 f_files; 153 u32 f_ffree; 154 compat_fsid_t f_fsid; 155 u32 f_namelen; 156 u32 f_frsize; 157 u32 f_flags; 158 u32 f_spare[4]; 159 }; 160 161 struct compat_statfs64 { 162 u32 f_type; 163 u32 f_bsize; 164 u64 f_blocks; 165 u64 f_bfree; 166 u64 f_bavail; 167 u64 f_files; 168 u64 f_ffree; 169 compat_fsid_t f_fsid; 170 u32 f_namelen; 171 u32 f_frsize; 172 u32 f_flags; 173 u32 f_spare[4]; 174 }; 175 176 #define COMPAT_RLIM_OLD_INFINITY 0x7fffffff 177 #define COMPAT_RLIM_INFINITY 0xffffffff 178 179 typedef u32 compat_old_sigset_t; /* at least 32 bits */ 180 181 #define _COMPAT_NSIG 64 182 #define _COMPAT_NSIG_BPW 32 183 184 typedef u32 compat_sigset_word; 185 186 typedef union compat_sigval { 187 compat_int_t sival_int; 188 compat_uptr_t sival_ptr; 189 } compat_sigval_t; 190 191 typedef struct compat_siginfo { 192 int si_signo; 193 int si_errno; 194 int si_code; 195 196 union { 197 int _pad[128/sizeof(int) - 3]; 198 199 /* kill() */ 200 struct { 201 pid_t _pid; /* sender's pid */ 202 uid_t _uid; /* sender's uid */ 203 } _kill; 204 205 /* POSIX.1b timers */ 206 struct { 207 compat_timer_t _tid; /* timer id */ 208 int _overrun; /* overrun count */ 209 compat_sigval_t _sigval; /* same as below */ 210 int _sys_private; /* not to be passed to user */ 211 } _timer; 212 213 /* POSIX.1b signals */ 214 struct { 215 pid_t _pid; /* sender's pid */ 216 uid_t _uid; /* sender's uid */ 217 compat_sigval_t _sigval; 218 } _rt; 219 220 /* SIGCHLD */ 221 struct { 222 pid_t _pid; /* which child */ 223 uid_t _uid; /* sender's uid */ 224 int _status;/* exit code */ 225 compat_clock_t _utime; 226 compat_clock_t _stime; 227 } _sigchld; 228 229 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ 230 struct { 231 __u32 _addr; /* faulting insn/memory ref. - pointer */ 232 } _sigfault; 233 234 /* SIGPOLL */ 235 struct { 236 int _band; /* POLL_IN, POLL_OUT, POLL_MSG */ 237 int _fd; 238 } _sigpoll; 239 } _sifields; 240 } compat_siginfo_t; 241 242 /* 243 * How these fields are to be accessed. 244 */ 245 #define si_pid _sifields._kill._pid 246 #define si_uid _sifields._kill._uid 247 #define si_status _sifields._sigchld._status 248 #define si_utime _sifields._sigchld._utime 249 #define si_stime _sifields._sigchld._stime 250 #define si_value _sifields._rt._sigval 251 #define si_int _sifields._rt._sigval.sival_int 252 #define si_ptr _sifields._rt._sigval.sival_ptr 253 #define si_addr _sifields._sigfault._addr 254 #define si_band _sifields._sigpoll._band 255 #define si_fd _sifields._sigpoll._fd 256 #define si_tid _sifields._timer._tid 257 #define si_overrun _sifields._timer._overrun 258 259 #define COMPAT_OFF_T_MAX 0x7fffffff 260 #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL 261 262 /* 263 * A pointer passed in from user mode. This should not 264 * be used for syscall parameters, just declare them 265 * as pointers because the syscall entry code will have 266 * appropriately converted them already. 267 */ 268 269 static inline void __user *compat_ptr(compat_uptr_t uptr) 270 { 271 return (void __user *)(unsigned long)(uptr & 0x7fffffffUL); 272 } 273 274 static inline compat_uptr_t ptr_to_compat(void __user *uptr) 275 { 276 return (u32)(unsigned long)uptr; 277 } 278 279 #ifdef CONFIG_COMPAT 280 281 static inline int is_compat_task(void) 282 { 283 return is_32bit_task(); 284 } 285 286 static inline void __user *arch_compat_alloc_user_space(long len) 287 { 288 unsigned long stack; 289 290 stack = KSTK_ESP(current); 291 if (is_compat_task()) 292 stack &= 0x7fffffffUL; 293 return (void __user *) (stack - len); 294 } 295 296 #endif 297 298 struct compat_ipc64_perm { 299 compat_key_t key; 300 __compat_uid32_t uid; 301 __compat_gid32_t gid; 302 __compat_uid32_t cuid; 303 __compat_gid32_t cgid; 304 compat_mode_t mode; 305 unsigned short __pad1; 306 unsigned short seq; 307 unsigned short __pad2; 308 unsigned int __unused1; 309 unsigned int __unused2; 310 }; 311 312 struct compat_semid64_ds { 313 struct compat_ipc64_perm sem_perm; 314 compat_time_t sem_otime; 315 compat_ulong_t __pad1; 316 compat_time_t sem_ctime; 317 compat_ulong_t __pad2; 318 compat_ulong_t sem_nsems; 319 compat_ulong_t __unused1; 320 compat_ulong_t __unused2; 321 }; 322 323 struct compat_msqid64_ds { 324 struct compat_ipc64_perm msg_perm; 325 compat_time_t msg_stime; 326 compat_ulong_t __pad1; 327 compat_time_t msg_rtime; 328 compat_ulong_t __pad2; 329 compat_time_t msg_ctime; 330 compat_ulong_t __pad3; 331 compat_ulong_t msg_cbytes; 332 compat_ulong_t msg_qnum; 333 compat_ulong_t msg_qbytes; 334 compat_pid_t msg_lspid; 335 compat_pid_t msg_lrpid; 336 compat_ulong_t __unused1; 337 compat_ulong_t __unused2; 338 }; 339 340 struct compat_shmid64_ds { 341 struct compat_ipc64_perm shm_perm; 342 compat_size_t shm_segsz; 343 compat_time_t shm_atime; 344 compat_ulong_t __pad1; 345 compat_time_t shm_dtime; 346 compat_ulong_t __pad2; 347 compat_time_t shm_ctime; 348 compat_ulong_t __pad3; 349 compat_pid_t shm_cpid; 350 compat_pid_t shm_lpid; 351 compat_ulong_t shm_nattch; 352 compat_ulong_t __unused1; 353 compat_ulong_t __unused2; 354 }; 355 #endif /* _ASM_S390X_COMPAT_H */ 356