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 47typedef u32 compat_size_t; 48typedef s32 compat_ssize_t; 49typedef s32 compat_time_t; 50typedef s32 compat_clock_t; 51typedef s32 compat_pid_t; 52typedef u16 __compat_uid_t; 53typedef u16 __compat_gid_t; 54typedef u32 __compat_uid32_t; 55typedef u32 __compat_gid32_t; 56typedef u16 compat_mode_t; 57typedef u32 compat_ino_t; 58typedef u16 compat_dev_t; 59typedef s32 compat_off_t; 60typedef s64 compat_loff_t; 61typedef u16 compat_nlink_t; 62typedef u16 compat_ipc_pid_t; 63typedef s32 compat_daddr_t; 64typedef u32 compat_caddr_t; 65typedef __kernel_fsid_t compat_fsid_t; 66typedef s32 compat_key_t; 67typedef s32 compat_timer_t; 68 69typedef s32 compat_int_t; 70typedef s32 compat_long_t; 71typedef s64 compat_s64; 72typedef u32 compat_uint_t; 73typedef u32 compat_ulong_t; 74typedef u64 compat_u64; 75typedef u32 compat_uptr_t; 76 77typedef struct { 78 u32 mask; 79 u32 addr; 80} __aligned(8) psw_compat_t; 81 82typedef 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 89typedef struct { 90 u32 gprs_high[NUM_GPRS]; 91} s390_compat_regs_high; 92 93struct compat_timespec { 94 compat_time_t tv_sec; 95 s32 tv_nsec; 96}; 97 98struct compat_timeval { 99 compat_time_t tv_sec; 100 s32 tv_usec; 101}; 102 103struct 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 126struct 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 138struct 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 146struct 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 161struct 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 179typedef u32 compat_old_sigset_t; /* at least 32 bits */ 180 181#define _COMPAT_NSIG 64 182#define _COMPAT_NSIG_BPW 32 183 184typedef u32 compat_sigset_word; 185 186typedef union compat_sigval { 187 compat_int_t sival_int; 188 compat_uptr_t sival_ptr; 189} compat_sigval_t; 190 191typedef 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 269static inline void __user *compat_ptr(compat_uptr_t uptr) 270{ 271 return (void __user *)(unsigned long)(uptr & 0x7fffffffUL); 272} 273 274static inline compat_uptr_t ptr_to_compat(void __user *uptr) 275{ 276 return (u32)(unsigned long)uptr; 277} 278 279#ifdef CONFIG_COMPAT 280 281static inline int is_compat_task(void) 282{ 283 return is_32bit_task(); 284} 285 286static 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 298struct 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 312struct 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 323struct 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 340struct 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