1c6557e7fSMartin Schwidefsky #ifndef _ASM_S390X_COMPAT_H 2c6557e7fSMartin Schwidefsky #define _ASM_S390X_COMPAT_H 3c6557e7fSMartin Schwidefsky /* 4c6557e7fSMartin Schwidefsky * Architecture specific compatibility types 5c6557e7fSMartin Schwidefsky */ 6c6557e7fSMartin Schwidefsky #include <linux/types.h> 7c6557e7fSMartin Schwidefsky #include <linux/sched.h> 87757591aSHeiko Carstens #include <linux/thread_info.h> 9c6557e7fSMartin Schwidefsky 1046836613SAl Viro #define __TYPE_IS_PTR(t) (!__builtin_types_compatible_p(typeof(0?(t)0:0ULL), u64)) 1146836613SAl Viro #define __SC_DELOUSE(t,v) (t)(__TYPE_IS_PTR(t) ? ((v) & 0x7fffffff) : (v)) 1246836613SAl Viro 13c6557e7fSMartin Schwidefsky #define PSW32_MASK_PER 0x40000000UL 14c6557e7fSMartin Schwidefsky #define PSW32_MASK_DAT 0x04000000UL 15c6557e7fSMartin Schwidefsky #define PSW32_MASK_IO 0x02000000UL 16c6557e7fSMartin Schwidefsky #define PSW32_MASK_EXT 0x01000000UL 17c6557e7fSMartin Schwidefsky #define PSW32_MASK_KEY 0x00F00000UL 18b50511e4SMartin Schwidefsky #define PSW32_MASK_BASE 0x00080000UL /* Always one */ 19c6557e7fSMartin Schwidefsky #define PSW32_MASK_MCHECK 0x00040000UL 20c6557e7fSMartin Schwidefsky #define PSW32_MASK_WAIT 0x00020000UL 21c6557e7fSMartin Schwidefsky #define PSW32_MASK_PSTATE 0x00010000UL 22c6557e7fSMartin Schwidefsky #define PSW32_MASK_ASC 0x0000C000UL 23c6557e7fSMartin Schwidefsky #define PSW32_MASK_CC 0x00003000UL 24c6557e7fSMartin Schwidefsky #define PSW32_MASK_PM 0x00000f00UL 25c6557e7fSMartin Schwidefsky 26fa968ee2SMartin Schwidefsky #define PSW32_MASK_USER 0x0000FF00UL 27b50511e4SMartin Schwidefsky 28b50511e4SMartin Schwidefsky #define PSW32_ADDR_AMODE 0x80000000UL 29c6557e7fSMartin Schwidefsky #define PSW32_ADDR_INSN 0x7FFFFFFFUL 30c6557e7fSMartin Schwidefsky 31b50511e4SMartin Schwidefsky #define PSW32_DEFAULT_KEY (((u32) PAGE_DEFAULT_ACC) << 20) 32c6557e7fSMartin Schwidefsky 33c6557e7fSMartin Schwidefsky #define PSW32_ASC_PRIMARY 0x00000000UL 34c6557e7fSMartin Schwidefsky #define PSW32_ASC_ACCREG 0x00004000UL 35c6557e7fSMartin Schwidefsky #define PSW32_ASC_SECONDARY 0x00008000UL 36c6557e7fSMartin Schwidefsky #define PSW32_ASC_HOME 0x0000C000UL 37c6557e7fSMartin Schwidefsky 38b50511e4SMartin Schwidefsky extern u32 psw32_user_bits; 39c6557e7fSMartin Schwidefsky 40c6557e7fSMartin Schwidefsky #define COMPAT_USER_HZ 100 41e28cbf22SChristoph Hellwig #define COMPAT_UTS_MACHINE "s390\0\0\0\0" 42c6557e7fSMartin Schwidefsky 43c6557e7fSMartin Schwidefsky typedef u32 compat_size_t; 44c6557e7fSMartin Schwidefsky typedef s32 compat_ssize_t; 45c6557e7fSMartin Schwidefsky typedef s32 compat_time_t; 46c6557e7fSMartin Schwidefsky typedef s32 compat_clock_t; 47c6557e7fSMartin Schwidefsky typedef s32 compat_pid_t; 48c6557e7fSMartin Schwidefsky typedef u16 __compat_uid_t; 49c6557e7fSMartin Schwidefsky typedef u16 __compat_gid_t; 50c6557e7fSMartin Schwidefsky typedef u32 __compat_uid32_t; 51c6557e7fSMartin Schwidefsky typedef u32 __compat_gid32_t; 52c6557e7fSMartin Schwidefsky typedef u16 compat_mode_t; 53c6557e7fSMartin Schwidefsky typedef u32 compat_ino_t; 54c6557e7fSMartin Schwidefsky typedef u16 compat_dev_t; 55c6557e7fSMartin Schwidefsky typedef s32 compat_off_t; 56c6557e7fSMartin Schwidefsky typedef s64 compat_loff_t; 57c6557e7fSMartin Schwidefsky typedef u16 compat_nlink_t; 58c6557e7fSMartin Schwidefsky typedef u16 compat_ipc_pid_t; 59c6557e7fSMartin Schwidefsky typedef s32 compat_daddr_t; 60c6557e7fSMartin Schwidefsky typedef u32 compat_caddr_t; 61c6557e7fSMartin Schwidefsky typedef __kernel_fsid_t compat_fsid_t; 62c6557e7fSMartin Schwidefsky typedef s32 compat_key_t; 63c6557e7fSMartin Schwidefsky typedef s32 compat_timer_t; 64c6557e7fSMartin Schwidefsky 65c6557e7fSMartin Schwidefsky typedef s32 compat_int_t; 66c6557e7fSMartin Schwidefsky typedef s32 compat_long_t; 67c6557e7fSMartin Schwidefsky typedef s64 compat_s64; 68c6557e7fSMartin Schwidefsky typedef u32 compat_uint_t; 69c6557e7fSMartin Schwidefsky typedef u32 compat_ulong_t; 70c6557e7fSMartin Schwidefsky typedef u64 compat_u64; 71751f409dSDenys Vlasenko typedef u32 compat_uptr_t; 72c6557e7fSMartin Schwidefsky 73c6557e7fSMartin Schwidefsky struct compat_timespec { 74c6557e7fSMartin Schwidefsky compat_time_t tv_sec; 75c6557e7fSMartin Schwidefsky s32 tv_nsec; 76c6557e7fSMartin Schwidefsky }; 77c6557e7fSMartin Schwidefsky 78c6557e7fSMartin Schwidefsky struct compat_timeval { 79c6557e7fSMartin Schwidefsky compat_time_t tv_sec; 80c6557e7fSMartin Schwidefsky s32 tv_usec; 81c6557e7fSMartin Schwidefsky }; 82c6557e7fSMartin Schwidefsky 83c6557e7fSMartin Schwidefsky struct compat_stat { 84c6557e7fSMartin Schwidefsky compat_dev_t st_dev; 85c6557e7fSMartin Schwidefsky u16 __pad1; 86c6557e7fSMartin Schwidefsky compat_ino_t st_ino; 87c6557e7fSMartin Schwidefsky compat_mode_t st_mode; 88c6557e7fSMartin Schwidefsky compat_nlink_t st_nlink; 89c6557e7fSMartin Schwidefsky __compat_uid_t st_uid; 90c6557e7fSMartin Schwidefsky __compat_gid_t st_gid; 91c6557e7fSMartin Schwidefsky compat_dev_t st_rdev; 92c6557e7fSMartin Schwidefsky u16 __pad2; 93c6557e7fSMartin Schwidefsky u32 st_size; 94c6557e7fSMartin Schwidefsky u32 st_blksize; 95c6557e7fSMartin Schwidefsky u32 st_blocks; 96c6557e7fSMartin Schwidefsky u32 st_atime; 97c6557e7fSMartin Schwidefsky u32 st_atime_nsec; 98c6557e7fSMartin Schwidefsky u32 st_mtime; 99c6557e7fSMartin Schwidefsky u32 st_mtime_nsec; 100c6557e7fSMartin Schwidefsky u32 st_ctime; 101c6557e7fSMartin Schwidefsky u32 st_ctime_nsec; 102c6557e7fSMartin Schwidefsky u32 __unused4; 103c6557e7fSMartin Schwidefsky u32 __unused5; 104c6557e7fSMartin Schwidefsky }; 105c6557e7fSMartin Schwidefsky 106c6557e7fSMartin Schwidefsky struct compat_flock { 107c6557e7fSMartin Schwidefsky short l_type; 108c6557e7fSMartin Schwidefsky short l_whence; 109c6557e7fSMartin Schwidefsky compat_off_t l_start; 110c6557e7fSMartin Schwidefsky compat_off_t l_len; 111c6557e7fSMartin Schwidefsky compat_pid_t l_pid; 112c6557e7fSMartin Schwidefsky }; 113c6557e7fSMartin Schwidefsky 114c6557e7fSMartin Schwidefsky #define F_GETLK64 12 115c6557e7fSMartin Schwidefsky #define F_SETLK64 13 116c6557e7fSMartin Schwidefsky #define F_SETLKW64 14 117c6557e7fSMartin Schwidefsky 118c6557e7fSMartin Schwidefsky struct compat_flock64 { 119c6557e7fSMartin Schwidefsky short l_type; 120c6557e7fSMartin Schwidefsky short l_whence; 121c6557e7fSMartin Schwidefsky compat_loff_t l_start; 122c6557e7fSMartin Schwidefsky compat_loff_t l_len; 123c6557e7fSMartin Schwidefsky compat_pid_t l_pid; 124c6557e7fSMartin Schwidefsky }; 125c6557e7fSMartin Schwidefsky 126c6557e7fSMartin Schwidefsky struct compat_statfs { 127c6557e7fSMartin Schwidefsky s32 f_type; 128c6557e7fSMartin Schwidefsky s32 f_bsize; 129c6557e7fSMartin Schwidefsky s32 f_blocks; 130c6557e7fSMartin Schwidefsky s32 f_bfree; 131c6557e7fSMartin Schwidefsky s32 f_bavail; 132c6557e7fSMartin Schwidefsky s32 f_files; 133c6557e7fSMartin Schwidefsky s32 f_ffree; 134c6557e7fSMartin Schwidefsky compat_fsid_t f_fsid; 135c6557e7fSMartin Schwidefsky s32 f_namelen; 136c6557e7fSMartin Schwidefsky s32 f_frsize; 1371448c721SEric W. Biederman s32 f_flags; 1381448c721SEric W. Biederman s32 f_spare[5]; 139c6557e7fSMartin Schwidefsky }; 140c6557e7fSMartin Schwidefsky 141c6557e7fSMartin Schwidefsky #define COMPAT_RLIM_OLD_INFINITY 0x7fffffff 142c6557e7fSMartin Schwidefsky #define COMPAT_RLIM_INFINITY 0xffffffff 143c6557e7fSMartin Schwidefsky 144c6557e7fSMartin Schwidefsky typedef u32 compat_old_sigset_t; /* at least 32 bits */ 145c6557e7fSMartin Schwidefsky 146c6557e7fSMartin Schwidefsky #define _COMPAT_NSIG 64 147c6557e7fSMartin Schwidefsky #define _COMPAT_NSIG_BPW 32 148c6557e7fSMartin Schwidefsky 149c6557e7fSMartin Schwidefsky typedef u32 compat_sigset_word; 150c6557e7fSMartin Schwidefsky 151751f409dSDenys Vlasenko typedef union compat_sigval { 152751f409dSDenys Vlasenko compat_int_t sival_int; 153751f409dSDenys Vlasenko compat_uptr_t sival_ptr; 154751f409dSDenys Vlasenko } compat_sigval_t; 155751f409dSDenys Vlasenko 156751f409dSDenys Vlasenko typedef struct compat_siginfo { 157751f409dSDenys Vlasenko int si_signo; 158751f409dSDenys Vlasenko int si_errno; 159751f409dSDenys Vlasenko int si_code; 160751f409dSDenys Vlasenko 161751f409dSDenys Vlasenko union { 162751f409dSDenys Vlasenko int _pad[128/sizeof(int) - 3]; 163751f409dSDenys Vlasenko 164751f409dSDenys Vlasenko /* kill() */ 165751f409dSDenys Vlasenko struct { 166751f409dSDenys Vlasenko pid_t _pid; /* sender's pid */ 167751f409dSDenys Vlasenko uid_t _uid; /* sender's uid */ 168751f409dSDenys Vlasenko } _kill; 169751f409dSDenys Vlasenko 170751f409dSDenys Vlasenko /* POSIX.1b timers */ 171751f409dSDenys Vlasenko struct { 172751f409dSDenys Vlasenko compat_timer_t _tid; /* timer id */ 173751f409dSDenys Vlasenko int _overrun; /* overrun count */ 174751f409dSDenys Vlasenko compat_sigval_t _sigval; /* same as below */ 175751f409dSDenys Vlasenko int _sys_private; /* not to be passed to user */ 176751f409dSDenys Vlasenko } _timer; 177751f409dSDenys Vlasenko 178751f409dSDenys Vlasenko /* POSIX.1b signals */ 179751f409dSDenys Vlasenko struct { 180751f409dSDenys Vlasenko pid_t _pid; /* sender's pid */ 181751f409dSDenys Vlasenko uid_t _uid; /* sender's uid */ 182751f409dSDenys Vlasenko compat_sigval_t _sigval; 183751f409dSDenys Vlasenko } _rt; 184751f409dSDenys Vlasenko 185751f409dSDenys Vlasenko /* SIGCHLD */ 186751f409dSDenys Vlasenko struct { 187751f409dSDenys Vlasenko pid_t _pid; /* which child */ 188751f409dSDenys Vlasenko uid_t _uid; /* sender's uid */ 189751f409dSDenys Vlasenko int _status;/* exit code */ 190751f409dSDenys Vlasenko compat_clock_t _utime; 191751f409dSDenys Vlasenko compat_clock_t _stime; 192751f409dSDenys Vlasenko } _sigchld; 193751f409dSDenys Vlasenko 194751f409dSDenys Vlasenko /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ 195751f409dSDenys Vlasenko struct { 196751f409dSDenys Vlasenko __u32 _addr; /* faulting insn/memory ref. - pointer */ 197751f409dSDenys Vlasenko } _sigfault; 198751f409dSDenys Vlasenko 199751f409dSDenys Vlasenko /* SIGPOLL */ 200751f409dSDenys Vlasenko struct { 201751f409dSDenys Vlasenko int _band; /* POLL_IN, POLL_OUT, POLL_MSG */ 202751f409dSDenys Vlasenko int _fd; 203751f409dSDenys Vlasenko } _sigpoll; 204751f409dSDenys Vlasenko } _sifields; 205751f409dSDenys Vlasenko } compat_siginfo_t; 206751f409dSDenys Vlasenko 207751f409dSDenys Vlasenko /* 208751f409dSDenys Vlasenko * How these fields are to be accessed. 209751f409dSDenys Vlasenko */ 210751f409dSDenys Vlasenko #define si_pid _sifields._kill._pid 211751f409dSDenys Vlasenko #define si_uid _sifields._kill._uid 212751f409dSDenys Vlasenko #define si_status _sifields._sigchld._status 213751f409dSDenys Vlasenko #define si_utime _sifields._sigchld._utime 214751f409dSDenys Vlasenko #define si_stime _sifields._sigchld._stime 215751f409dSDenys Vlasenko #define si_value _sifields._rt._sigval 216751f409dSDenys Vlasenko #define si_int _sifields._rt._sigval.sival_int 217751f409dSDenys Vlasenko #define si_ptr _sifields._rt._sigval.sival_ptr 218751f409dSDenys Vlasenko #define si_addr _sifields._sigfault._addr 219751f409dSDenys Vlasenko #define si_band _sifields._sigpoll._band 220751f409dSDenys Vlasenko #define si_fd _sifields._sigpoll._fd 221751f409dSDenys Vlasenko #define si_tid _sifields._timer._tid 222751f409dSDenys Vlasenko #define si_overrun _sifields._timer._overrun 223751f409dSDenys Vlasenko 224c6557e7fSMartin Schwidefsky #define COMPAT_OFF_T_MAX 0x7fffffff 225c6557e7fSMartin Schwidefsky #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL 226c6557e7fSMartin Schwidefsky 227c6557e7fSMartin Schwidefsky /* 228c6557e7fSMartin Schwidefsky * A pointer passed in from user mode. This should not 229c6557e7fSMartin Schwidefsky * be used for syscall parameters, just declare them 230c6557e7fSMartin Schwidefsky * as pointers because the syscall entry code will have 231c6557e7fSMartin Schwidefsky * appropriately converted them already. 232c6557e7fSMartin Schwidefsky */ 233c6557e7fSMartin Schwidefsky 234c6557e7fSMartin Schwidefsky static inline void __user *compat_ptr(compat_uptr_t uptr) 235c6557e7fSMartin Schwidefsky { 236c6557e7fSMartin Schwidefsky return (void __user *)(unsigned long)(uptr & 0x7fffffffUL); 237c6557e7fSMartin Schwidefsky } 238c6557e7fSMartin Schwidefsky 239c6557e7fSMartin Schwidefsky static inline compat_uptr_t ptr_to_compat(void __user *uptr) 240c6557e7fSMartin Schwidefsky { 241c6557e7fSMartin Schwidefsky return (u32)(unsigned long)uptr; 242c6557e7fSMartin Schwidefsky } 243c6557e7fSMartin Schwidefsky 2447757591aSHeiko Carstens #ifdef CONFIG_COMPAT 2457757591aSHeiko Carstens 2467757591aSHeiko Carstens static inline int is_compat_task(void) 2477757591aSHeiko Carstens { 248a05c90f1SHeiko Carstens return is_32bit_task(); 2497757591aSHeiko Carstens } 2507757591aSHeiko Carstens 2517757591aSHeiko Carstens #endif 2527757591aSHeiko Carstens 253c41d68a5SH. Peter Anvin static inline void __user *arch_compat_alloc_user_space(long len) 254c6557e7fSMartin Schwidefsky { 255c6557e7fSMartin Schwidefsky unsigned long stack; 256c6557e7fSMartin Schwidefsky 257c6557e7fSMartin Schwidefsky stack = KSTK_ESP(current); 2587757591aSHeiko Carstens if (is_compat_task()) 259c6557e7fSMartin Schwidefsky stack &= 0x7fffffffUL; 260c6557e7fSMartin Schwidefsky return (void __user *) (stack - len); 261c6557e7fSMartin Schwidefsky } 262c6557e7fSMartin Schwidefsky 263c6557e7fSMartin Schwidefsky struct compat_ipc64_perm { 264c6557e7fSMartin Schwidefsky compat_key_t key; 265c6557e7fSMartin Schwidefsky __compat_uid32_t uid; 266c6557e7fSMartin Schwidefsky __compat_gid32_t gid; 267c6557e7fSMartin Schwidefsky __compat_uid32_t cuid; 268c6557e7fSMartin Schwidefsky __compat_gid32_t cgid; 269c6557e7fSMartin Schwidefsky compat_mode_t mode; 270c6557e7fSMartin Schwidefsky unsigned short __pad1; 271c6557e7fSMartin Schwidefsky unsigned short seq; 272c6557e7fSMartin Schwidefsky unsigned short __pad2; 273c6557e7fSMartin Schwidefsky unsigned int __unused1; 274c6557e7fSMartin Schwidefsky unsigned int __unused2; 275c6557e7fSMartin Schwidefsky }; 276c6557e7fSMartin Schwidefsky 277c6557e7fSMartin Schwidefsky struct compat_semid64_ds { 278c6557e7fSMartin Schwidefsky struct compat_ipc64_perm sem_perm; 279c6557e7fSMartin Schwidefsky compat_time_t sem_otime; 280c6557e7fSMartin Schwidefsky compat_ulong_t __pad1; 281c6557e7fSMartin Schwidefsky compat_time_t sem_ctime; 282c6557e7fSMartin Schwidefsky compat_ulong_t __pad2; 283c6557e7fSMartin Schwidefsky compat_ulong_t sem_nsems; 284c6557e7fSMartin Schwidefsky compat_ulong_t __unused1; 285c6557e7fSMartin Schwidefsky compat_ulong_t __unused2; 286c6557e7fSMartin Schwidefsky }; 287c6557e7fSMartin Schwidefsky 288c6557e7fSMartin Schwidefsky struct compat_msqid64_ds { 289c6557e7fSMartin Schwidefsky struct compat_ipc64_perm msg_perm; 290c6557e7fSMartin Schwidefsky compat_time_t msg_stime; 291c6557e7fSMartin Schwidefsky compat_ulong_t __pad1; 292c6557e7fSMartin Schwidefsky compat_time_t msg_rtime; 293c6557e7fSMartin Schwidefsky compat_ulong_t __pad2; 294c6557e7fSMartin Schwidefsky compat_time_t msg_ctime; 295c6557e7fSMartin Schwidefsky compat_ulong_t __pad3; 296c6557e7fSMartin Schwidefsky compat_ulong_t msg_cbytes; 297c6557e7fSMartin Schwidefsky compat_ulong_t msg_qnum; 298c6557e7fSMartin Schwidefsky compat_ulong_t msg_qbytes; 299c6557e7fSMartin Schwidefsky compat_pid_t msg_lspid; 300c6557e7fSMartin Schwidefsky compat_pid_t msg_lrpid; 301c6557e7fSMartin Schwidefsky compat_ulong_t __unused1; 302c6557e7fSMartin Schwidefsky compat_ulong_t __unused2; 303c6557e7fSMartin Schwidefsky }; 304c6557e7fSMartin Schwidefsky 305c6557e7fSMartin Schwidefsky struct compat_shmid64_ds { 306c6557e7fSMartin Schwidefsky struct compat_ipc64_perm shm_perm; 307c6557e7fSMartin Schwidefsky compat_size_t shm_segsz; 308c6557e7fSMartin Schwidefsky compat_time_t shm_atime; 309c6557e7fSMartin Schwidefsky compat_ulong_t __pad1; 310c6557e7fSMartin Schwidefsky compat_time_t shm_dtime; 311c6557e7fSMartin Schwidefsky compat_ulong_t __pad2; 312c6557e7fSMartin Schwidefsky compat_time_t shm_ctime; 313c6557e7fSMartin Schwidefsky compat_ulong_t __pad3; 314c6557e7fSMartin Schwidefsky compat_pid_t shm_cpid; 315c6557e7fSMartin Schwidefsky compat_pid_t shm_lpid; 316c6557e7fSMartin Schwidefsky compat_ulong_t shm_nattch; 317c6557e7fSMartin Schwidefsky compat_ulong_t __unused1; 318c6557e7fSMartin Schwidefsky compat_ulong_t __unused2; 319c6557e7fSMartin Schwidefsky }; 320c6557e7fSMartin Schwidefsky #endif /* _ASM_S390X_COMPAT_H */ 321