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