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
25 #define PSW32_MASK_RI 0x00000080UL
27 #define PSW32_MASK_USER 0x0000FF00UL
29 #define PSW32_ADDR_AMODE 0x80000000UL
30 #define PSW32_ADDR_INSN 0x7FFFFFFFUL
32 #define PSW32_DEFAULT_KEY (((u32) PAGE_DEFAULT_ACC) << 20)
34 #define PSW32_ASC_PRIMARY 0x00000000UL
35 #define PSW32_ASC_ACCREG 0x00004000UL
36 #define PSW32_ASC_SECONDARY 0x00008000UL
37 #define PSW32_ASC_HOME 0x0000C000UL
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 | PSW32_ASC_HOME)
43 #define COMPAT_USER_HZ 100
44 #define COMPAT_UTS_MACHINE "s390\0\0\0\0"
46 typedef u32 compat_size_t;
47 typedef s32 compat_ssize_t;
48 typedef s32 compat_time_t;
49 typedef s32 compat_clock_t;
50 typedef s32 compat_pid_t;
51 typedef u16 __compat_uid_t;
52 typedef u16 __compat_gid_t;
53 typedef u32 __compat_uid32_t;
54 typedef u32 __compat_gid32_t;
55 typedef u16 compat_mode_t;
56 typedef u32 compat_ino_t;
57 typedef u16 compat_dev_t;
58 typedef s32 compat_off_t;
59 typedef s64 compat_loff_t;
60 typedef u16 compat_nlink_t;
61 typedef u16 compat_ipc_pid_t;
62 typedef s32 compat_daddr_t;
63 typedef u32 compat_caddr_t;
64 typedef __kernel_fsid_t compat_fsid_t;
65 typedef s32 compat_key_t;
66 typedef s32 compat_timer_t;
68 typedef s32 compat_int_t;
69 typedef s32 compat_long_t;
70 typedef s64 compat_s64;
71 typedef u32 compat_uint_t;
72 typedef u32 compat_ulong_t;
73 typedef u64 compat_u64;
74 typedef u32 compat_uptr_t;
79 } __aligned(8) psw_compat_t;
89 u32 gprs_high[NUM_GPRS];
90 } s390_compat_regs_high;
92 struct compat_timespec {
97 struct compat_timeval {
106 compat_mode_t st_mode;
107 compat_nlink_t st_nlink;
108 __compat_uid_t st_uid;
109 __compat_gid_t st_gid;
110 compat_dev_t st_rdev;
125 struct compat_flock {
128 compat_off_t l_start;
135 #define F_SETLKW64 14
137 struct compat_flock64 {
140 compat_loff_t l_start;
145 struct compat_statfs {
153 compat_fsid_t f_fsid;
160 struct compat_statfs64 {
168 compat_fsid_t f_fsid;
175 #define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
176 #define COMPAT_RLIM_INFINITY 0xffffffff
178 typedef u32 compat_old_sigset_t; /* at least 32 bits */
180 #define _COMPAT_NSIG 64
181 #define _COMPAT_NSIG_BPW 32
183 typedef u32 compat_sigset_word;
185 typedef union compat_sigval {
186 compat_int_t sival_int;
187 compat_uptr_t sival_ptr;
190 typedef struct compat_siginfo {
196 int _pad[128/sizeof(int) - 3];
200 pid_t _pid; /* sender's pid */
201 uid_t _uid; /* sender's uid */
204 /* POSIX.1b timers */
206 compat_timer_t _tid; /* timer id */
207 int _overrun; /* overrun count */
208 compat_sigval_t _sigval; /* same as below */
209 int _sys_private; /* not to be passed to user */
212 /* POSIX.1b signals */
214 pid_t _pid; /* sender's pid */
215 uid_t _uid; /* sender's uid */
216 compat_sigval_t _sigval;
221 pid_t _pid; /* which child */
222 uid_t _uid; /* sender's uid */
223 int _status;/* exit code */
224 compat_clock_t _utime;
225 compat_clock_t _stime;
228 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
230 __u32 _addr; /* faulting insn/memory ref. - pointer */
235 int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
242 * How these fields are to be accessed.
244 #define si_pid _sifields._kill._pid
245 #define si_uid _sifields._kill._uid
246 #define si_status _sifields._sigchld._status
247 #define si_utime _sifields._sigchld._utime
248 #define si_stime _sifields._sigchld._stime
249 #define si_value _sifields._rt._sigval
250 #define si_int _sifields._rt._sigval.sival_int
251 #define si_ptr _sifields._rt._sigval.sival_ptr
252 #define si_addr _sifields._sigfault._addr
253 #define si_band _sifields._sigpoll._band
254 #define si_fd _sifields._sigpoll._fd
255 #define si_tid _sifields._timer._tid
256 #define si_overrun _sifields._timer._overrun
258 #define COMPAT_OFF_T_MAX 0x7fffffff
259 #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
262 * A pointer passed in from user mode. This should not
263 * be used for syscall parameters, just declare them
264 * as pointers because the syscall entry code will have
265 * appropriately converted them already.
268 static inline void __user *compat_ptr(compat_uptr_t uptr)
270 return (void __user *)(unsigned long)(uptr & 0x7fffffffUL);
273 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
275 return (u32)(unsigned long)uptr;
280 static inline int is_compat_task(void)
282 return is_32bit_task();
285 static inline void __user *arch_compat_alloc_user_space(long len)
289 stack = KSTK_ESP(current);
290 if (is_compat_task())
291 stack &= 0x7fffffffUL;
292 return (void __user *) (stack - len);
297 struct compat_ipc64_perm {
299 __compat_uid32_t uid;
300 __compat_gid32_t gid;
301 __compat_uid32_t cuid;
302 __compat_gid32_t cgid;
304 unsigned short __pad1;
306 unsigned short __pad2;
307 unsigned int __unused1;
308 unsigned int __unused2;
311 struct compat_semid64_ds {
312 struct compat_ipc64_perm sem_perm;
313 compat_time_t sem_otime;
314 compat_ulong_t __pad1;
315 compat_time_t sem_ctime;
316 compat_ulong_t __pad2;
317 compat_ulong_t sem_nsems;
318 compat_ulong_t __unused1;
319 compat_ulong_t __unused2;
322 struct compat_msqid64_ds {
323 struct compat_ipc64_perm msg_perm;
324 compat_time_t msg_stime;
325 compat_ulong_t __pad1;
326 compat_time_t msg_rtime;
327 compat_ulong_t __pad2;
328 compat_time_t msg_ctime;
329 compat_ulong_t __pad3;
330 compat_ulong_t msg_cbytes;
331 compat_ulong_t msg_qnum;
332 compat_ulong_t msg_qbytes;
333 compat_pid_t msg_lspid;
334 compat_pid_t msg_lrpid;
335 compat_ulong_t __unused1;
336 compat_ulong_t __unused2;
339 struct compat_shmid64_ds {
340 struct compat_ipc64_perm shm_perm;
341 compat_size_t shm_segsz;
342 compat_time_t shm_atime;
343 compat_ulong_t __pad1;
344 compat_time_t shm_dtime;
345 compat_ulong_t __pad2;
346 compat_time_t shm_ctime;
347 compat_ulong_t __pad3;
348 compat_pid_t shm_cpid;
349 compat_pid_t shm_lpid;
350 compat_ulong_t shm_nattch;
351 compat_ulong_t __unused1;
352 compat_ulong_t __unused2;
354 #endif /* _ASM_S390X_COMPAT_H */