1 #ifndef _ASM_S390X_COMPAT_H
2 #define _ASM_S390X_COMPAT_H
4 * Architecture specific compatibility types
6 #include <linux/types.h>
7 #include <linux/sched.h>
8 #include <linux/thread_info.h>
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))
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
26 #define PSW32_MASK_USER 0x0000FF00UL
28 #define PSW32_ADDR_AMODE 0x80000000UL
29 #define PSW32_ADDR_INSN 0x7FFFFFFFUL
31 #define PSW32_DEFAULT_KEY (((u32) PAGE_DEFAULT_ACC) << 20)
33 #define PSW32_ASC_PRIMARY 0x00000000UL
34 #define PSW32_ASC_ACCREG 0x00004000UL
35 #define PSW32_ASC_SECONDARY 0x00008000UL
36 #define PSW32_ASC_HOME 0x0000C000UL
38 extern u32 psw32_user_bits;
40 #define COMPAT_USER_HZ 100
41 #define COMPAT_UTS_MACHINE "s390\0\0\0\0"
43 typedef u32 compat_size_t;
44 typedef s32 compat_ssize_t;
45 typedef s32 compat_time_t;
46 typedef s32 compat_clock_t;
47 typedef s32 compat_pid_t;
48 typedef u16 __compat_uid_t;
49 typedef u16 __compat_gid_t;
50 typedef u32 __compat_uid32_t;
51 typedef u32 __compat_gid32_t;
52 typedef u16 compat_mode_t;
53 typedef u32 compat_ino_t;
54 typedef u16 compat_dev_t;
55 typedef s32 compat_off_t;
56 typedef s64 compat_loff_t;
57 typedef u16 compat_nlink_t;
58 typedef u16 compat_ipc_pid_t;
59 typedef s32 compat_daddr_t;
60 typedef u32 compat_caddr_t;
61 typedef __kernel_fsid_t compat_fsid_t;
62 typedef s32 compat_key_t;
63 typedef s32 compat_timer_t;
65 typedef s32 compat_int_t;
66 typedef s32 compat_long_t;
67 typedef s64 compat_s64;
68 typedef u32 compat_uint_t;
69 typedef u32 compat_ulong_t;
70 typedef u64 compat_u64;
71 typedef u32 compat_uptr_t;
73 struct compat_timespec {
78 struct compat_timeval {
87 compat_mode_t st_mode;
88 compat_nlink_t st_nlink;
89 __compat_uid_t st_uid;
90 __compat_gid_t st_gid;
106 struct compat_flock {
109 compat_off_t l_start;
116 #define F_SETLKW64 14
118 struct compat_flock64 {
121 compat_loff_t l_start;
126 struct compat_statfs {
134 compat_fsid_t f_fsid;
141 #define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
142 #define COMPAT_RLIM_INFINITY 0xffffffff
144 typedef u32 compat_old_sigset_t; /* at least 32 bits */
146 #define _COMPAT_NSIG 64
147 #define _COMPAT_NSIG_BPW 32
149 typedef u32 compat_sigset_word;
151 typedef union compat_sigval {
152 compat_int_t sival_int;
153 compat_uptr_t sival_ptr;
156 typedef struct compat_siginfo {
162 int _pad[128/sizeof(int) - 3];
166 pid_t _pid; /* sender's pid */
167 uid_t _uid; /* sender's uid */
170 /* POSIX.1b timers */
172 compat_timer_t _tid; /* timer id */
173 int _overrun; /* overrun count */
174 compat_sigval_t _sigval; /* same as below */
175 int _sys_private; /* not to be passed to user */
178 /* POSIX.1b signals */
180 pid_t _pid; /* sender's pid */
181 uid_t _uid; /* sender's uid */
182 compat_sigval_t _sigval;
187 pid_t _pid; /* which child */
188 uid_t _uid; /* sender's uid */
189 int _status;/* exit code */
190 compat_clock_t _utime;
191 compat_clock_t _stime;
194 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
196 __u32 _addr; /* faulting insn/memory ref. - pointer */
201 int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
208 * How these fields are to be accessed.
210 #define si_pid _sifields._kill._pid
211 #define si_uid _sifields._kill._uid
212 #define si_status _sifields._sigchld._status
213 #define si_utime _sifields._sigchld._utime
214 #define si_stime _sifields._sigchld._stime
215 #define si_value _sifields._rt._sigval
216 #define si_int _sifields._rt._sigval.sival_int
217 #define si_ptr _sifields._rt._sigval.sival_ptr
218 #define si_addr _sifields._sigfault._addr
219 #define si_band _sifields._sigpoll._band
220 #define si_fd _sifields._sigpoll._fd
221 #define si_tid _sifields._timer._tid
222 #define si_overrun _sifields._timer._overrun
224 #define COMPAT_OFF_T_MAX 0x7fffffff
225 #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
228 * A pointer passed in from user mode. This should not
229 * be used for syscall parameters, just declare them
230 * as pointers because the syscall entry code will have
231 * appropriately converted them already.
234 static inline void __user *compat_ptr(compat_uptr_t uptr)
236 return (void __user *)(unsigned long)(uptr & 0x7fffffffUL);
239 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
241 return (u32)(unsigned long)uptr;
246 static inline int is_compat_task(void)
248 return is_32bit_task();
253 static inline void __user *arch_compat_alloc_user_space(long len)
257 stack = KSTK_ESP(current);
258 if (is_compat_task())
259 stack &= 0x7fffffffUL;
260 return (void __user *) (stack - len);
263 struct compat_ipc64_perm {
265 __compat_uid32_t uid;
266 __compat_gid32_t gid;
267 __compat_uid32_t cuid;
268 __compat_gid32_t cgid;
270 unsigned short __pad1;
272 unsigned short __pad2;
273 unsigned int __unused1;
274 unsigned int __unused2;
277 struct compat_semid64_ds {
278 struct compat_ipc64_perm sem_perm;
279 compat_time_t sem_otime;
280 compat_ulong_t __pad1;
281 compat_time_t sem_ctime;
282 compat_ulong_t __pad2;
283 compat_ulong_t sem_nsems;
284 compat_ulong_t __unused1;
285 compat_ulong_t __unused2;
288 struct compat_msqid64_ds {
289 struct compat_ipc64_perm msg_perm;
290 compat_time_t msg_stime;
291 compat_ulong_t __pad1;
292 compat_time_t msg_rtime;
293 compat_ulong_t __pad2;
294 compat_time_t msg_ctime;
295 compat_ulong_t __pad3;
296 compat_ulong_t msg_cbytes;
297 compat_ulong_t msg_qnum;
298 compat_ulong_t msg_qbytes;
299 compat_pid_t msg_lspid;
300 compat_pid_t msg_lrpid;
301 compat_ulong_t __unused1;
302 compat_ulong_t __unused2;
305 struct compat_shmid64_ds {
306 struct compat_ipc64_perm shm_perm;
307 compat_size_t shm_segsz;
308 compat_time_t shm_atime;
309 compat_ulong_t __pad1;
310 compat_time_t shm_dtime;
311 compat_ulong_t __pad2;
312 compat_time_t shm_ctime;
313 compat_ulong_t __pad3;
314 compat_pid_t shm_cpid;
315 compat_pid_t shm_lpid;
316 compat_ulong_t shm_nattch;
317 compat_ulong_t __unused1;
318 compat_ulong_t __unused2;
320 #endif /* _ASM_S390X_COMPAT_H */