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 73e4371f60SHeiko Carstens typedef struct { 74e4371f60SHeiko Carstens u32 mask; 75e4371f60SHeiko Carstens u32 addr; 76e4371f60SHeiko Carstens } __aligned(8) psw_compat_t; 77e4371f60SHeiko Carstens 78e4371f60SHeiko Carstens typedef struct { 79e4371f60SHeiko Carstens psw_compat_t psw; 80e4371f60SHeiko Carstens u32 gprs[NUM_GPRS]; 81e4371f60SHeiko Carstens u32 acrs[NUM_ACRS]; 82e4371f60SHeiko Carstens u32 orig_gpr2; 83e4371f60SHeiko Carstens } s390_compat_regs; 84e4371f60SHeiko Carstens 85e4371f60SHeiko Carstens typedef struct { 86e4371f60SHeiko Carstens u32 gprs_high[NUM_GPRS]; 87e4371f60SHeiko Carstens } s390_compat_regs_high; 88e4371f60SHeiko Carstens 89c6557e7fSMartin Schwidefsky struct compat_timespec { 90c6557e7fSMartin Schwidefsky compat_time_t tv_sec; 91c6557e7fSMartin Schwidefsky s32 tv_nsec; 92c6557e7fSMartin Schwidefsky }; 93c6557e7fSMartin Schwidefsky 94c6557e7fSMartin Schwidefsky struct compat_timeval { 95c6557e7fSMartin Schwidefsky compat_time_t tv_sec; 96c6557e7fSMartin Schwidefsky s32 tv_usec; 97c6557e7fSMartin Schwidefsky }; 98c6557e7fSMartin Schwidefsky 99c6557e7fSMartin Schwidefsky struct compat_stat { 100c6557e7fSMartin Schwidefsky compat_dev_t st_dev; 101c6557e7fSMartin Schwidefsky u16 __pad1; 102c6557e7fSMartin Schwidefsky compat_ino_t st_ino; 103c6557e7fSMartin Schwidefsky compat_mode_t st_mode; 104c6557e7fSMartin Schwidefsky compat_nlink_t st_nlink; 105c6557e7fSMartin Schwidefsky __compat_uid_t st_uid; 106c6557e7fSMartin Schwidefsky __compat_gid_t st_gid; 107c6557e7fSMartin Schwidefsky compat_dev_t st_rdev; 108c6557e7fSMartin Schwidefsky u16 __pad2; 109c6557e7fSMartin Schwidefsky u32 st_size; 110c6557e7fSMartin Schwidefsky u32 st_blksize; 111c6557e7fSMartin Schwidefsky u32 st_blocks; 112c6557e7fSMartin Schwidefsky u32 st_atime; 113c6557e7fSMartin Schwidefsky u32 st_atime_nsec; 114c6557e7fSMartin Schwidefsky u32 st_mtime; 115c6557e7fSMartin Schwidefsky u32 st_mtime_nsec; 116c6557e7fSMartin Schwidefsky u32 st_ctime; 117c6557e7fSMartin Schwidefsky u32 st_ctime_nsec; 118c6557e7fSMartin Schwidefsky u32 __unused4; 119c6557e7fSMartin Schwidefsky u32 __unused5; 120c6557e7fSMartin Schwidefsky }; 121c6557e7fSMartin Schwidefsky 122c6557e7fSMartin Schwidefsky struct compat_flock { 123c6557e7fSMartin Schwidefsky short l_type; 124c6557e7fSMartin Schwidefsky short l_whence; 125c6557e7fSMartin Schwidefsky compat_off_t l_start; 126c6557e7fSMartin Schwidefsky compat_off_t l_len; 127c6557e7fSMartin Schwidefsky compat_pid_t l_pid; 128c6557e7fSMartin Schwidefsky }; 129c6557e7fSMartin Schwidefsky 130c6557e7fSMartin Schwidefsky #define F_GETLK64 12 131c6557e7fSMartin Schwidefsky #define F_SETLK64 13 132c6557e7fSMartin Schwidefsky #define F_SETLKW64 14 133c6557e7fSMartin Schwidefsky 134c6557e7fSMartin Schwidefsky struct compat_flock64 { 135c6557e7fSMartin Schwidefsky short l_type; 136c6557e7fSMartin Schwidefsky short l_whence; 137c6557e7fSMartin Schwidefsky compat_loff_t l_start; 138c6557e7fSMartin Schwidefsky compat_loff_t l_len; 139c6557e7fSMartin Schwidefsky compat_pid_t l_pid; 140c6557e7fSMartin Schwidefsky }; 141c6557e7fSMartin Schwidefsky 142c6557e7fSMartin Schwidefsky struct compat_statfs { 143b8668fd0SHeiko Carstens u32 f_type; 144b8668fd0SHeiko Carstens u32 f_bsize; 145b8668fd0SHeiko Carstens u32 f_blocks; 146b8668fd0SHeiko Carstens u32 f_bfree; 147b8668fd0SHeiko Carstens u32 f_bavail; 148b8668fd0SHeiko Carstens u32 f_files; 149b8668fd0SHeiko Carstens u32 f_ffree; 150c6557e7fSMartin Schwidefsky compat_fsid_t f_fsid; 151b8668fd0SHeiko Carstens u32 f_namelen; 152b8668fd0SHeiko Carstens u32 f_frsize; 153b8668fd0SHeiko Carstens u32 f_flags; 154b8668fd0SHeiko Carstens u32 f_spare[4]; 155b8668fd0SHeiko Carstens }; 156b8668fd0SHeiko Carstens 157b8668fd0SHeiko Carstens struct compat_statfs64 { 158b8668fd0SHeiko Carstens u32 f_type; 159b8668fd0SHeiko Carstens u32 f_bsize; 160b8668fd0SHeiko Carstens u64 f_blocks; 161b8668fd0SHeiko Carstens u64 f_bfree; 162b8668fd0SHeiko Carstens u64 f_bavail; 163b8668fd0SHeiko Carstens u64 f_files; 164b8668fd0SHeiko Carstens u64 f_ffree; 165b8668fd0SHeiko Carstens compat_fsid_t f_fsid; 166b8668fd0SHeiko Carstens u32 f_namelen; 167b8668fd0SHeiko Carstens u32 f_frsize; 168b8668fd0SHeiko Carstens u32 f_flags; 169b8668fd0SHeiko Carstens u32 f_spare[4]; 170c6557e7fSMartin Schwidefsky }; 171c6557e7fSMartin Schwidefsky 172c6557e7fSMartin Schwidefsky #define COMPAT_RLIM_OLD_INFINITY 0x7fffffff 173c6557e7fSMartin Schwidefsky #define COMPAT_RLIM_INFINITY 0xffffffff 174c6557e7fSMartin Schwidefsky 175c6557e7fSMartin Schwidefsky typedef u32 compat_old_sigset_t; /* at least 32 bits */ 176c6557e7fSMartin Schwidefsky 177c6557e7fSMartin Schwidefsky #define _COMPAT_NSIG 64 178c6557e7fSMartin Schwidefsky #define _COMPAT_NSIG_BPW 32 179c6557e7fSMartin Schwidefsky 180c6557e7fSMartin Schwidefsky typedef u32 compat_sigset_word; 181c6557e7fSMartin Schwidefsky 182751f409dSDenys Vlasenko typedef union compat_sigval { 183751f409dSDenys Vlasenko compat_int_t sival_int; 184751f409dSDenys Vlasenko compat_uptr_t sival_ptr; 185751f409dSDenys Vlasenko } compat_sigval_t; 186751f409dSDenys Vlasenko 187751f409dSDenys Vlasenko typedef struct compat_siginfo { 188751f409dSDenys Vlasenko int si_signo; 189751f409dSDenys Vlasenko int si_errno; 190751f409dSDenys Vlasenko int si_code; 191751f409dSDenys Vlasenko 192751f409dSDenys Vlasenko union { 193751f409dSDenys Vlasenko int _pad[128/sizeof(int) - 3]; 194751f409dSDenys Vlasenko 195751f409dSDenys Vlasenko /* kill() */ 196751f409dSDenys Vlasenko struct { 197751f409dSDenys Vlasenko pid_t _pid; /* sender's pid */ 198751f409dSDenys Vlasenko uid_t _uid; /* sender's uid */ 199751f409dSDenys Vlasenko } _kill; 200751f409dSDenys Vlasenko 201751f409dSDenys Vlasenko /* POSIX.1b timers */ 202751f409dSDenys Vlasenko struct { 203751f409dSDenys Vlasenko compat_timer_t _tid; /* timer id */ 204751f409dSDenys Vlasenko int _overrun; /* overrun count */ 205751f409dSDenys Vlasenko compat_sigval_t _sigval; /* same as below */ 206751f409dSDenys Vlasenko int _sys_private; /* not to be passed to user */ 207751f409dSDenys Vlasenko } _timer; 208751f409dSDenys Vlasenko 209751f409dSDenys Vlasenko /* POSIX.1b signals */ 210751f409dSDenys Vlasenko struct { 211751f409dSDenys Vlasenko pid_t _pid; /* sender's pid */ 212751f409dSDenys Vlasenko uid_t _uid; /* sender's uid */ 213751f409dSDenys Vlasenko compat_sigval_t _sigval; 214751f409dSDenys Vlasenko } _rt; 215751f409dSDenys Vlasenko 216751f409dSDenys Vlasenko /* SIGCHLD */ 217751f409dSDenys Vlasenko struct { 218751f409dSDenys Vlasenko pid_t _pid; /* which child */ 219751f409dSDenys Vlasenko uid_t _uid; /* sender's uid */ 220751f409dSDenys Vlasenko int _status;/* exit code */ 221751f409dSDenys Vlasenko compat_clock_t _utime; 222751f409dSDenys Vlasenko compat_clock_t _stime; 223751f409dSDenys Vlasenko } _sigchld; 224751f409dSDenys Vlasenko 225751f409dSDenys Vlasenko /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ 226751f409dSDenys Vlasenko struct { 227751f409dSDenys Vlasenko __u32 _addr; /* faulting insn/memory ref. - pointer */ 228751f409dSDenys Vlasenko } _sigfault; 229751f409dSDenys Vlasenko 230751f409dSDenys Vlasenko /* SIGPOLL */ 231751f409dSDenys Vlasenko struct { 232751f409dSDenys Vlasenko int _band; /* POLL_IN, POLL_OUT, POLL_MSG */ 233751f409dSDenys Vlasenko int _fd; 234751f409dSDenys Vlasenko } _sigpoll; 235751f409dSDenys Vlasenko } _sifields; 236751f409dSDenys Vlasenko } compat_siginfo_t; 237751f409dSDenys Vlasenko 238751f409dSDenys Vlasenko /* 239751f409dSDenys Vlasenko * How these fields are to be accessed. 240751f409dSDenys Vlasenko */ 241751f409dSDenys Vlasenko #define si_pid _sifields._kill._pid 242751f409dSDenys Vlasenko #define si_uid _sifields._kill._uid 243751f409dSDenys Vlasenko #define si_status _sifields._sigchld._status 244751f409dSDenys Vlasenko #define si_utime _sifields._sigchld._utime 245751f409dSDenys Vlasenko #define si_stime _sifields._sigchld._stime 246751f409dSDenys Vlasenko #define si_value _sifields._rt._sigval 247751f409dSDenys Vlasenko #define si_int _sifields._rt._sigval.sival_int 248751f409dSDenys Vlasenko #define si_ptr _sifields._rt._sigval.sival_ptr 249751f409dSDenys Vlasenko #define si_addr _sifields._sigfault._addr 250751f409dSDenys Vlasenko #define si_band _sifields._sigpoll._band 251751f409dSDenys Vlasenko #define si_fd _sifields._sigpoll._fd 252751f409dSDenys Vlasenko #define si_tid _sifields._timer._tid 253751f409dSDenys Vlasenko #define si_overrun _sifields._timer._overrun 254751f409dSDenys Vlasenko 255c6557e7fSMartin Schwidefsky #define COMPAT_OFF_T_MAX 0x7fffffff 256c6557e7fSMartin Schwidefsky #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL 257c6557e7fSMartin Schwidefsky 258c6557e7fSMartin Schwidefsky /* 259c6557e7fSMartin Schwidefsky * A pointer passed in from user mode. This should not 260c6557e7fSMartin Schwidefsky * be used for syscall parameters, just declare them 261c6557e7fSMartin Schwidefsky * as pointers because the syscall entry code will have 262c6557e7fSMartin Schwidefsky * appropriately converted them already. 263c6557e7fSMartin Schwidefsky */ 264c6557e7fSMartin Schwidefsky 265c6557e7fSMartin Schwidefsky static inline void __user *compat_ptr(compat_uptr_t uptr) 266c6557e7fSMartin Schwidefsky { 267c6557e7fSMartin Schwidefsky return (void __user *)(unsigned long)(uptr & 0x7fffffffUL); 268c6557e7fSMartin Schwidefsky } 269c6557e7fSMartin Schwidefsky 270c6557e7fSMartin Schwidefsky static inline compat_uptr_t ptr_to_compat(void __user *uptr) 271c6557e7fSMartin Schwidefsky { 272c6557e7fSMartin Schwidefsky return (u32)(unsigned long)uptr; 273c6557e7fSMartin Schwidefsky } 274c6557e7fSMartin Schwidefsky 2757757591aSHeiko Carstens #ifdef CONFIG_COMPAT 2767757591aSHeiko Carstens 2777757591aSHeiko Carstens static inline int is_compat_task(void) 2787757591aSHeiko Carstens { 279a05c90f1SHeiko Carstens return is_32bit_task(); 2807757591aSHeiko Carstens } 2817757591aSHeiko Carstens 282c41d68a5SH. Peter Anvin static inline void __user *arch_compat_alloc_user_space(long len) 283c6557e7fSMartin Schwidefsky { 284c6557e7fSMartin Schwidefsky unsigned long stack; 285c6557e7fSMartin Schwidefsky 286c6557e7fSMartin Schwidefsky stack = KSTK_ESP(current); 2877757591aSHeiko Carstens if (is_compat_task()) 288c6557e7fSMartin Schwidefsky stack &= 0x7fffffffUL; 289c6557e7fSMartin Schwidefsky return (void __user *) (stack - len); 290c6557e7fSMartin Schwidefsky } 291c6557e7fSMartin Schwidefsky 2920f58104cSHeiko Carstens #endif 2930f58104cSHeiko Carstens 294c6557e7fSMartin Schwidefsky struct compat_ipc64_perm { 295c6557e7fSMartin Schwidefsky compat_key_t key; 296c6557e7fSMartin Schwidefsky __compat_uid32_t uid; 297c6557e7fSMartin Schwidefsky __compat_gid32_t gid; 298c6557e7fSMartin Schwidefsky __compat_uid32_t cuid; 299c6557e7fSMartin Schwidefsky __compat_gid32_t cgid; 300c6557e7fSMartin Schwidefsky compat_mode_t mode; 301c6557e7fSMartin Schwidefsky unsigned short __pad1; 302c6557e7fSMartin Schwidefsky unsigned short seq; 303c6557e7fSMartin Schwidefsky unsigned short __pad2; 304c6557e7fSMartin Schwidefsky unsigned int __unused1; 305c6557e7fSMartin Schwidefsky unsigned int __unused2; 306c6557e7fSMartin Schwidefsky }; 307c6557e7fSMartin Schwidefsky 308c6557e7fSMartin Schwidefsky struct compat_semid64_ds { 309c6557e7fSMartin Schwidefsky struct compat_ipc64_perm sem_perm; 310c6557e7fSMartin Schwidefsky compat_time_t sem_otime; 311c6557e7fSMartin Schwidefsky compat_ulong_t __pad1; 312c6557e7fSMartin Schwidefsky compat_time_t sem_ctime; 313c6557e7fSMartin Schwidefsky compat_ulong_t __pad2; 314c6557e7fSMartin Schwidefsky compat_ulong_t sem_nsems; 315c6557e7fSMartin Schwidefsky compat_ulong_t __unused1; 316c6557e7fSMartin Schwidefsky compat_ulong_t __unused2; 317c6557e7fSMartin Schwidefsky }; 318c6557e7fSMartin Schwidefsky 319c6557e7fSMartin Schwidefsky struct compat_msqid64_ds { 320c6557e7fSMartin Schwidefsky struct compat_ipc64_perm msg_perm; 321c6557e7fSMartin Schwidefsky compat_time_t msg_stime; 322c6557e7fSMartin Schwidefsky compat_ulong_t __pad1; 323c6557e7fSMartin Schwidefsky compat_time_t msg_rtime; 324c6557e7fSMartin Schwidefsky compat_ulong_t __pad2; 325c6557e7fSMartin Schwidefsky compat_time_t msg_ctime; 326c6557e7fSMartin Schwidefsky compat_ulong_t __pad3; 327c6557e7fSMartin Schwidefsky compat_ulong_t msg_cbytes; 328c6557e7fSMartin Schwidefsky compat_ulong_t msg_qnum; 329c6557e7fSMartin Schwidefsky compat_ulong_t msg_qbytes; 330c6557e7fSMartin Schwidefsky compat_pid_t msg_lspid; 331c6557e7fSMartin Schwidefsky compat_pid_t msg_lrpid; 332c6557e7fSMartin Schwidefsky compat_ulong_t __unused1; 333c6557e7fSMartin Schwidefsky compat_ulong_t __unused2; 334c6557e7fSMartin Schwidefsky }; 335c6557e7fSMartin Schwidefsky 336c6557e7fSMartin Schwidefsky struct compat_shmid64_ds { 337c6557e7fSMartin Schwidefsky struct compat_ipc64_perm shm_perm; 338c6557e7fSMartin Schwidefsky compat_size_t shm_segsz; 339c6557e7fSMartin Schwidefsky compat_time_t shm_atime; 340c6557e7fSMartin Schwidefsky compat_ulong_t __pad1; 341c6557e7fSMartin Schwidefsky compat_time_t shm_dtime; 342c6557e7fSMartin Schwidefsky compat_ulong_t __pad2; 343c6557e7fSMartin Schwidefsky compat_time_t shm_ctime; 344c6557e7fSMartin Schwidefsky compat_ulong_t __pad3; 345c6557e7fSMartin Schwidefsky compat_pid_t shm_cpid; 346c6557e7fSMartin Schwidefsky compat_pid_t shm_lpid; 347c6557e7fSMartin Schwidefsky compat_ulong_t shm_nattch; 348c6557e7fSMartin Schwidefsky compat_ulong_t __unused1; 349c6557e7fSMartin Schwidefsky compat_ulong_t __unused2; 350c6557e7fSMartin Schwidefsky }; 351c6557e7fSMartin Schwidefsky #endif /* _ASM_S390X_COMPAT_H */ 352