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 PSW32_MASK_PER 0x40000000UL
11 #define PSW32_MASK_DAT 0x04000000UL
12 #define PSW32_MASK_IO 0x02000000UL
13 #define PSW32_MASK_EXT 0x01000000UL
14 #define PSW32_MASK_KEY 0x00F00000UL
15 #define PSW32_MASK_BASE 0x00080000UL /* Always one */
16 #define PSW32_MASK_MCHECK 0x00040000UL
17 #define PSW32_MASK_WAIT 0x00020000UL
18 #define PSW32_MASK_PSTATE 0x00010000UL
19 #define PSW32_MASK_ASC 0x0000C000UL
20 #define PSW32_MASK_CC 0x00003000UL
21 #define PSW32_MASK_PM 0x00000f00UL
23 #define PSW32_MASK_USER 0x0000FF00UL
25 #define PSW32_ADDR_AMODE 0x80000000UL
26 #define PSW32_ADDR_INSN 0x7FFFFFFFUL
28 #define PSW32_DEFAULT_KEY (((u32) PAGE_DEFAULT_ACC) << 20)
30 #define PSW32_ASC_PRIMARY 0x00000000UL
31 #define PSW32_ASC_ACCREG 0x00004000UL
32 #define PSW32_ASC_SECONDARY 0x00008000UL
33 #define PSW32_ASC_HOME 0x0000C000UL
35 extern u32 psw32_user_bits;
37 #define COMPAT_USER_HZ 100
38 #define COMPAT_UTS_MACHINE "s390\0\0\0\0"
40 typedef u32 compat_size_t;
41 typedef s32 compat_ssize_t;
42 typedef s32 compat_time_t;
43 typedef s32 compat_clock_t;
44 typedef s32 compat_pid_t;
45 typedef u16 __compat_uid_t;
46 typedef u16 __compat_gid_t;
47 typedef u32 __compat_uid32_t;
48 typedef u32 __compat_gid32_t;
49 typedef u16 compat_mode_t;
50 typedef u32 compat_ino_t;
51 typedef u16 compat_dev_t;
52 typedef s32 compat_off_t;
53 typedef s64 compat_loff_t;
54 typedef u16 compat_nlink_t;
55 typedef u16 compat_ipc_pid_t;
56 typedef s32 compat_daddr_t;
57 typedef u32 compat_caddr_t;
58 typedef __kernel_fsid_t compat_fsid_t;
59 typedef s32 compat_key_t;
60 typedef s32 compat_timer_t;
62 typedef s32 compat_int_t;
63 typedef s32 compat_long_t;
64 typedef s64 compat_s64;
65 typedef u32 compat_uint_t;
66 typedef u32 compat_ulong_t;
67 typedef u64 compat_u64;
68 typedef u32 compat_uptr_t;
70 struct compat_timespec {
75 struct compat_timeval {
84 compat_mode_t st_mode;
85 compat_nlink_t st_nlink;
86 __compat_uid_t st_uid;
87 __compat_gid_t st_gid;
103 struct compat_flock {
106 compat_off_t l_start;
113 #define F_SETLKW64 14
115 struct compat_flock64 {
118 compat_loff_t l_start;
123 struct compat_statfs {
131 compat_fsid_t f_fsid;
138 #define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
139 #define COMPAT_RLIM_INFINITY 0xffffffff
141 typedef u32 compat_old_sigset_t; /* at least 32 bits */
143 #define _COMPAT_NSIG 64
144 #define _COMPAT_NSIG_BPW 32
146 typedef u32 compat_sigset_word;
148 typedef union compat_sigval {
149 compat_int_t sival_int;
150 compat_uptr_t sival_ptr;
153 typedef struct compat_siginfo {
159 int _pad[128/sizeof(int) - 3];
163 pid_t _pid; /* sender's pid */
164 uid_t _uid; /* sender's uid */
167 /* POSIX.1b timers */
169 compat_timer_t _tid; /* timer id */
170 int _overrun; /* overrun count */
171 compat_sigval_t _sigval; /* same as below */
172 int _sys_private; /* not to be passed to user */
175 /* POSIX.1b signals */
177 pid_t _pid; /* sender's pid */
178 uid_t _uid; /* sender's uid */
179 compat_sigval_t _sigval;
184 pid_t _pid; /* which child */
185 uid_t _uid; /* sender's uid */
186 int _status;/* exit code */
187 compat_clock_t _utime;
188 compat_clock_t _stime;
191 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
193 __u32 _addr; /* faulting insn/memory ref. - pointer */
198 int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
205 * How these fields are to be accessed.
207 #define si_pid _sifields._kill._pid
208 #define si_uid _sifields._kill._uid
209 #define si_status _sifields._sigchld._status
210 #define si_utime _sifields._sigchld._utime
211 #define si_stime _sifields._sigchld._stime
212 #define si_value _sifields._rt._sigval
213 #define si_int _sifields._rt._sigval.sival_int
214 #define si_ptr _sifields._rt._sigval.sival_ptr
215 #define si_addr _sifields._sigfault._addr
216 #define si_band _sifields._sigpoll._band
217 #define si_fd _sifields._sigpoll._fd
218 #define si_tid _sifields._timer._tid
219 #define si_overrun _sifields._timer._overrun
221 #define COMPAT_OFF_T_MAX 0x7fffffff
222 #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
225 * A pointer passed in from user mode. This should not
226 * be used for syscall parameters, just declare them
227 * as pointers because the syscall entry code will have
228 * appropriately converted them already.
231 static inline void __user *compat_ptr(compat_uptr_t uptr)
233 return (void __user *)(unsigned long)(uptr & 0x7fffffffUL);
236 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
238 return (u32)(unsigned long)uptr;
243 static inline int is_compat_task(void)
245 return is_32bit_task();
250 static inline void __user *arch_compat_alloc_user_space(long len)
254 stack = KSTK_ESP(current);
255 if (is_compat_task())
256 stack &= 0x7fffffffUL;
257 return (void __user *) (stack - len);
260 struct compat_ipc64_perm {
262 __compat_uid32_t uid;
263 __compat_gid32_t gid;
264 __compat_uid32_t cuid;
265 __compat_gid32_t cgid;
267 unsigned short __pad1;
269 unsigned short __pad2;
270 unsigned int __unused1;
271 unsigned int __unused2;
274 struct compat_semid64_ds {
275 struct compat_ipc64_perm sem_perm;
276 compat_time_t sem_otime;
277 compat_ulong_t __pad1;
278 compat_time_t sem_ctime;
279 compat_ulong_t __pad2;
280 compat_ulong_t sem_nsems;
281 compat_ulong_t __unused1;
282 compat_ulong_t __unused2;
285 struct compat_msqid64_ds {
286 struct compat_ipc64_perm msg_perm;
287 compat_time_t msg_stime;
288 compat_ulong_t __pad1;
289 compat_time_t msg_rtime;
290 compat_ulong_t __pad2;
291 compat_time_t msg_ctime;
292 compat_ulong_t __pad3;
293 compat_ulong_t msg_cbytes;
294 compat_ulong_t msg_qnum;
295 compat_ulong_t msg_qbytes;
296 compat_pid_t msg_lspid;
297 compat_pid_t msg_lrpid;
298 compat_ulong_t __unused1;
299 compat_ulong_t __unused2;
302 struct compat_shmid64_ds {
303 struct compat_ipc64_perm shm_perm;
304 compat_size_t shm_segsz;
305 compat_time_t shm_atime;
306 compat_ulong_t __pad1;
307 compat_time_t shm_dtime;
308 compat_ulong_t __pad2;
309 compat_time_t shm_ctime;
310 compat_ulong_t __pad3;
311 compat_pid_t shm_cpid;
312 compat_pid_t shm_lpid;
313 compat_ulong_t shm_nattch;
314 compat_ulong_t __unused1;
315 compat_ulong_t __unused2;
317 #endif /* _ASM_S390X_COMPAT_H */