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 26#define PSW32_MASK_USER 0x0000FF00UL 27 28#define PSW32_ADDR_AMODE 0x80000000UL 29#define PSW32_ADDR_INSN 0x7FFFFFFFUL 30 31#define PSW32_DEFAULT_KEY (((u32) PAGE_DEFAULT_ACC) << 20) 32 33#define PSW32_ASC_PRIMARY 0x00000000UL 34#define PSW32_ASC_ACCREG 0x00004000UL 35#define PSW32_ASC_SECONDARY 0x00008000UL 36#define PSW32_ASC_HOME 0x0000C000UL 37 38extern u32 psw32_user_bits; 39 40#define COMPAT_USER_HZ 100 41#define COMPAT_UTS_MACHINE "s390\0\0\0\0" 42 43typedef u32 compat_size_t; 44typedef s32 compat_ssize_t; 45typedef s32 compat_time_t; 46typedef s32 compat_clock_t; 47typedef s32 compat_pid_t; 48typedef u16 __compat_uid_t; 49typedef u16 __compat_gid_t; 50typedef u32 __compat_uid32_t; 51typedef u32 __compat_gid32_t; 52typedef u16 compat_mode_t; 53typedef u32 compat_ino_t; 54typedef u16 compat_dev_t; 55typedef s32 compat_off_t; 56typedef s64 compat_loff_t; 57typedef u16 compat_nlink_t; 58typedef u16 compat_ipc_pid_t; 59typedef s32 compat_daddr_t; 60typedef u32 compat_caddr_t; 61typedef __kernel_fsid_t compat_fsid_t; 62typedef s32 compat_key_t; 63typedef s32 compat_timer_t; 64 65typedef s32 compat_int_t; 66typedef s32 compat_long_t; 67typedef s64 compat_s64; 68typedef u32 compat_uint_t; 69typedef u32 compat_ulong_t; 70typedef u64 compat_u64; 71typedef u32 compat_uptr_t; 72 73typedef struct { 74 u32 mask; 75 u32 addr; 76} __aligned(8) psw_compat_t; 77 78typedef struct { 79 psw_compat_t psw; 80 u32 gprs[NUM_GPRS]; 81 u32 acrs[NUM_ACRS]; 82 u32 orig_gpr2; 83} s390_compat_regs; 84 85typedef struct { 86 u32 gprs_high[NUM_GPRS]; 87} s390_compat_regs_high; 88 89struct compat_timespec { 90 compat_time_t tv_sec; 91 s32 tv_nsec; 92}; 93 94struct compat_timeval { 95 compat_time_t tv_sec; 96 s32 tv_usec; 97}; 98 99struct compat_stat { 100 compat_dev_t st_dev; 101 u16 __pad1; 102 compat_ino_t st_ino; 103 compat_mode_t st_mode; 104 compat_nlink_t st_nlink; 105 __compat_uid_t st_uid; 106 __compat_gid_t st_gid; 107 compat_dev_t st_rdev; 108 u16 __pad2; 109 u32 st_size; 110 u32 st_blksize; 111 u32 st_blocks; 112 u32 st_atime; 113 u32 st_atime_nsec; 114 u32 st_mtime; 115 u32 st_mtime_nsec; 116 u32 st_ctime; 117 u32 st_ctime_nsec; 118 u32 __unused4; 119 u32 __unused5; 120}; 121 122struct compat_flock { 123 short l_type; 124 short l_whence; 125 compat_off_t l_start; 126 compat_off_t l_len; 127 compat_pid_t l_pid; 128}; 129 130#define F_GETLK64 12 131#define F_SETLK64 13 132#define F_SETLKW64 14 133 134struct compat_flock64 { 135 short l_type; 136 short l_whence; 137 compat_loff_t l_start; 138 compat_loff_t l_len; 139 compat_pid_t l_pid; 140}; 141 142struct compat_statfs { 143 u32 f_type; 144 u32 f_bsize; 145 u32 f_blocks; 146 u32 f_bfree; 147 u32 f_bavail; 148 u32 f_files; 149 u32 f_ffree; 150 compat_fsid_t f_fsid; 151 u32 f_namelen; 152 u32 f_frsize; 153 u32 f_flags; 154 u32 f_spare[4]; 155}; 156 157struct compat_statfs64 { 158 u32 f_type; 159 u32 f_bsize; 160 u64 f_blocks; 161 u64 f_bfree; 162 u64 f_bavail; 163 u64 f_files; 164 u64 f_ffree; 165 compat_fsid_t f_fsid; 166 u32 f_namelen; 167 u32 f_frsize; 168 u32 f_flags; 169 u32 f_spare[4]; 170}; 171 172#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff 173#define COMPAT_RLIM_INFINITY 0xffffffff 174 175typedef u32 compat_old_sigset_t; /* at least 32 bits */ 176 177#define _COMPAT_NSIG 64 178#define _COMPAT_NSIG_BPW 32 179 180typedef u32 compat_sigset_word; 181 182typedef union compat_sigval { 183 compat_int_t sival_int; 184 compat_uptr_t sival_ptr; 185} compat_sigval_t; 186 187typedef struct compat_siginfo { 188 int si_signo; 189 int si_errno; 190 int si_code; 191 192 union { 193 int _pad[128/sizeof(int) - 3]; 194 195 /* kill() */ 196 struct { 197 pid_t _pid; /* sender's pid */ 198 uid_t _uid; /* sender's uid */ 199 } _kill; 200 201 /* POSIX.1b timers */ 202 struct { 203 compat_timer_t _tid; /* timer id */ 204 int _overrun; /* overrun count */ 205 compat_sigval_t _sigval; /* same as below */ 206 int _sys_private; /* not to be passed to user */ 207 } _timer; 208 209 /* POSIX.1b signals */ 210 struct { 211 pid_t _pid; /* sender's pid */ 212 uid_t _uid; /* sender's uid */ 213 compat_sigval_t _sigval; 214 } _rt; 215 216 /* SIGCHLD */ 217 struct { 218 pid_t _pid; /* which child */ 219 uid_t _uid; /* sender's uid */ 220 int _status;/* exit code */ 221 compat_clock_t _utime; 222 compat_clock_t _stime; 223 } _sigchld; 224 225 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ 226 struct { 227 __u32 _addr; /* faulting insn/memory ref. - pointer */ 228 } _sigfault; 229 230 /* SIGPOLL */ 231 struct { 232 int _band; /* POLL_IN, POLL_OUT, POLL_MSG */ 233 int _fd; 234 } _sigpoll; 235 } _sifields; 236} compat_siginfo_t; 237 238/* 239 * How these fields are to be accessed. 240 */ 241#define si_pid _sifields._kill._pid 242#define si_uid _sifields._kill._uid 243#define si_status _sifields._sigchld._status 244#define si_utime _sifields._sigchld._utime 245#define si_stime _sifields._sigchld._stime 246#define si_value _sifields._rt._sigval 247#define si_int _sifields._rt._sigval.sival_int 248#define si_ptr _sifields._rt._sigval.sival_ptr 249#define si_addr _sifields._sigfault._addr 250#define si_band _sifields._sigpoll._band 251#define si_fd _sifields._sigpoll._fd 252#define si_tid _sifields._timer._tid 253#define si_overrun _sifields._timer._overrun 254 255#define COMPAT_OFF_T_MAX 0x7fffffff 256#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL 257 258/* 259 * A pointer passed in from user mode. This should not 260 * be used for syscall parameters, just declare them 261 * as pointers because the syscall entry code will have 262 * appropriately converted them already. 263 */ 264 265static inline void __user *compat_ptr(compat_uptr_t uptr) 266{ 267 return (void __user *)(unsigned long)(uptr & 0x7fffffffUL); 268} 269 270static inline compat_uptr_t ptr_to_compat(void __user *uptr) 271{ 272 return (u32)(unsigned long)uptr; 273} 274 275#ifdef CONFIG_COMPAT 276 277static inline int is_compat_task(void) 278{ 279 return is_32bit_task(); 280} 281 282static inline void __user *arch_compat_alloc_user_space(long len) 283{ 284 unsigned long stack; 285 286 stack = KSTK_ESP(current); 287 if (is_compat_task()) 288 stack &= 0x7fffffffUL; 289 return (void __user *) (stack - len); 290} 291 292#endif 293 294struct compat_ipc64_perm { 295 compat_key_t key; 296 __compat_uid32_t uid; 297 __compat_gid32_t gid; 298 __compat_uid32_t cuid; 299 __compat_gid32_t cgid; 300 compat_mode_t mode; 301 unsigned short __pad1; 302 unsigned short seq; 303 unsigned short __pad2; 304 unsigned int __unused1; 305 unsigned int __unused2; 306}; 307 308struct compat_semid64_ds { 309 struct compat_ipc64_perm sem_perm; 310 compat_time_t sem_otime; 311 compat_ulong_t __pad1; 312 compat_time_t sem_ctime; 313 compat_ulong_t __pad2; 314 compat_ulong_t sem_nsems; 315 compat_ulong_t __unused1; 316 compat_ulong_t __unused2; 317}; 318 319struct compat_msqid64_ds { 320 struct compat_ipc64_perm msg_perm; 321 compat_time_t msg_stime; 322 compat_ulong_t __pad1; 323 compat_time_t msg_rtime; 324 compat_ulong_t __pad2; 325 compat_time_t msg_ctime; 326 compat_ulong_t __pad3; 327 compat_ulong_t msg_cbytes; 328 compat_ulong_t msg_qnum; 329 compat_ulong_t msg_qbytes; 330 compat_pid_t msg_lspid; 331 compat_pid_t msg_lrpid; 332 compat_ulong_t __unused1; 333 compat_ulong_t __unused2; 334}; 335 336struct compat_shmid64_ds { 337 struct compat_ipc64_perm shm_perm; 338 compat_size_t shm_segsz; 339 compat_time_t shm_atime; 340 compat_ulong_t __pad1; 341 compat_time_t shm_dtime; 342 compat_ulong_t __pad2; 343 compat_time_t shm_ctime; 344 compat_ulong_t __pad3; 345 compat_pid_t shm_cpid; 346 compat_pid_t shm_lpid; 347 compat_ulong_t shm_nattch; 348 compat_ulong_t __unused1; 349 compat_ulong_t __unused2; 350}; 351#endif /* _ASM_S390X_COMPAT_H */ 352