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/sched/task_stack.h>
9 #include <linux/thread_info.h>
11 #define __TYPE_IS_PTR(t) (!__builtin_types_compatible_p( \
12 typeof(0?(__force t)0:0ULL), u64))
14 #define __SC_DELOUSE(t,v) ({ \
15 BUILD_BUG_ON(sizeof(t) > 4 && !__TYPE_IS_PTR(t)); \
16 (__force t)(__TYPE_IS_PTR(t) ? ((v) & 0x7fffffff) : (v)); \
19 #define PSW32_MASK_PER 0x40000000UL
20 #define PSW32_MASK_DAT 0x04000000UL
21 #define PSW32_MASK_IO 0x02000000UL
22 #define PSW32_MASK_EXT 0x01000000UL
23 #define PSW32_MASK_KEY 0x00F00000UL
24 #define PSW32_MASK_BASE 0x00080000UL /* Always one */
25 #define PSW32_MASK_MCHECK 0x00040000UL
26 #define PSW32_MASK_WAIT 0x00020000UL
27 #define PSW32_MASK_PSTATE 0x00010000UL
28 #define PSW32_MASK_ASC 0x0000C000UL
29 #define PSW32_MASK_CC 0x00003000UL
30 #define PSW32_MASK_PM 0x00000f00UL
31 #define PSW32_MASK_RI 0x00000080UL
33 #define PSW32_MASK_USER 0x0000FF00UL
35 #define PSW32_ADDR_AMODE 0x80000000UL
36 #define PSW32_ADDR_INSN 0x7FFFFFFFUL
38 #define PSW32_DEFAULT_KEY (((u32) PAGE_DEFAULT_ACC) << 20)
40 #define PSW32_ASC_PRIMARY 0x00000000UL
41 #define PSW32_ASC_ACCREG 0x00004000UL
42 #define PSW32_ASC_SECONDARY 0x00008000UL
43 #define PSW32_ASC_HOME 0x0000C000UL
45 #define PSW32_USER_BITS (PSW32_MASK_DAT | PSW32_MASK_IO | PSW32_MASK_EXT | \
46 PSW32_DEFAULT_KEY | PSW32_MASK_BASE | \
47 PSW32_MASK_MCHECK | PSW32_MASK_PSTATE | \
50 #define COMPAT_USER_HZ 100
51 #define COMPAT_UTS_MACHINE "s390\0\0\0\0"
53 typedef u32 compat_size_t;
54 typedef s32 compat_ssize_t;
55 typedef s32 compat_time_t;
56 typedef s32 compat_clock_t;
57 typedef s32 compat_pid_t;
58 typedef u16 __compat_uid_t;
59 typedef u16 __compat_gid_t;
60 typedef u32 __compat_uid32_t;
61 typedef u32 __compat_gid32_t;
62 typedef u16 compat_mode_t;
63 typedef u32 compat_ino_t;
64 typedef u16 compat_dev_t;
65 typedef s32 compat_off_t;
66 typedef s64 compat_loff_t;
67 typedef u16 compat_nlink_t;
68 typedef u16 compat_ipc_pid_t;
69 typedef s32 compat_daddr_t;
70 typedef u32 compat_caddr_t;
71 typedef __kernel_fsid_t compat_fsid_t;
72 typedef s32 compat_key_t;
73 typedef s32 compat_timer_t;
75 typedef s32 compat_int_t;
76 typedef s32 compat_long_t;
77 typedef s64 compat_s64;
78 typedef u32 compat_uint_t;
79 typedef u32 compat_ulong_t;
80 typedef u64 compat_u64;
81 typedef u32 compat_uptr_t;
86 } __aligned(8) psw_compat_t;
96 u32 gprs_high[NUM_GPRS];
97 } s390_compat_regs_high;
99 struct compat_timespec {
100 compat_time_t tv_sec;
104 struct compat_timeval {
105 compat_time_t tv_sec;
113 compat_mode_t st_mode;
114 compat_nlink_t st_nlink;
115 __compat_uid_t st_uid;
116 __compat_gid_t st_gid;
117 compat_dev_t st_rdev;
132 struct compat_flock {
135 compat_off_t l_start;
142 #define F_SETLKW64 14
144 struct compat_flock64 {
147 compat_loff_t l_start;
152 struct compat_statfs {
160 compat_fsid_t f_fsid;
167 struct compat_statfs64 {
175 compat_fsid_t f_fsid;
182 #define COMPAT_RLIM_INFINITY 0xffffffff
184 typedef u32 compat_old_sigset_t; /* at least 32 bits */
186 #define _COMPAT_NSIG 64
187 #define _COMPAT_NSIG_BPW 32
189 typedef u32 compat_sigset_word;
191 typedef union compat_sigval {
192 compat_int_t sival_int;
193 compat_uptr_t sival_ptr;
196 typedef struct compat_siginfo {
202 int _pad[128/sizeof(int) - 3];
206 pid_t _pid; /* sender's pid */
207 uid_t _uid; /* sender's uid */
210 /* POSIX.1b timers */
212 compat_timer_t _tid; /* timer id */
213 int _overrun; /* overrun count */
214 compat_sigval_t _sigval; /* same as below */
215 int _sys_private; /* not to be passed to user */
218 /* POSIX.1b signals */
220 pid_t _pid; /* sender's pid */
221 uid_t _uid; /* sender's uid */
222 compat_sigval_t _sigval;
227 pid_t _pid; /* which child */
228 uid_t _uid; /* sender's uid */
229 int _status;/* exit code */
230 compat_clock_t _utime;
231 compat_clock_t _stime;
234 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
236 __u32 _addr; /* faulting insn/memory ref. - pointer */
241 int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
248 * How these fields are to be accessed.
250 #define si_pid _sifields._kill._pid
251 #define si_uid _sifields._kill._uid
252 #define si_status _sifields._sigchld._status
253 #define si_utime _sifields._sigchld._utime
254 #define si_stime _sifields._sigchld._stime
255 #define si_value _sifields._rt._sigval
256 #define si_int _sifields._rt._sigval.sival_int
257 #define si_ptr _sifields._rt._sigval.sival_ptr
258 #define si_addr _sifields._sigfault._addr
259 #define si_band _sifields._sigpoll._band
260 #define si_fd _sifields._sigpoll._fd
261 #define si_tid _sifields._timer._tid
262 #define si_overrun _sifields._timer._overrun
264 #define COMPAT_OFF_T_MAX 0x7fffffff
265 #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
268 * A pointer passed in from user mode. This should not
269 * be used for syscall parameters, just declare them
270 * as pointers because the syscall entry code will have
271 * appropriately converted them already.
274 static inline void __user *compat_ptr(compat_uptr_t uptr)
276 return (void __user *)(unsigned long)(uptr & 0x7fffffffUL);
279 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
281 return (u32)(unsigned long)uptr;
286 static inline int is_compat_task(void)
288 return test_thread_flag(TIF_31BIT);
291 static inline void __user *arch_compat_alloc_user_space(long len)
295 stack = KSTK_ESP(current);
296 if (is_compat_task())
297 stack &= 0x7fffffffUL;
298 return (void __user *) (stack - len);
303 struct compat_ipc64_perm {
305 __compat_uid32_t uid;
306 __compat_gid32_t gid;
307 __compat_uid32_t cuid;
308 __compat_gid32_t cgid;
310 unsigned short __pad1;
312 unsigned short __pad2;
313 unsigned int __unused1;
314 unsigned int __unused2;
317 struct compat_semid64_ds {
318 struct compat_ipc64_perm sem_perm;
319 compat_time_t sem_otime;
320 compat_ulong_t __pad1;
321 compat_time_t sem_ctime;
322 compat_ulong_t __pad2;
323 compat_ulong_t sem_nsems;
324 compat_ulong_t __unused1;
325 compat_ulong_t __unused2;
328 struct compat_msqid64_ds {
329 struct compat_ipc64_perm msg_perm;
330 compat_time_t msg_stime;
331 compat_ulong_t __pad1;
332 compat_time_t msg_rtime;
333 compat_ulong_t __pad2;
334 compat_time_t msg_ctime;
335 compat_ulong_t __pad3;
336 compat_ulong_t msg_cbytes;
337 compat_ulong_t msg_qnum;
338 compat_ulong_t msg_qbytes;
339 compat_pid_t msg_lspid;
340 compat_pid_t msg_lrpid;
341 compat_ulong_t __unused1;
342 compat_ulong_t __unused2;
345 struct compat_shmid64_ds {
346 struct compat_ipc64_perm shm_perm;
347 compat_size_t shm_segsz;
348 compat_time_t shm_atime;
349 compat_ulong_t __pad1;
350 compat_time_t shm_dtime;
351 compat_ulong_t __pad2;
352 compat_time_t shm_ctime;
353 compat_ulong_t __pad3;
354 compat_pid_t shm_cpid;
355 compat_pid_t shm_lpid;
356 compat_ulong_t shm_nattch;
357 compat_ulong_t __unused1;
358 compat_ulong_t __unused2;
360 #endif /* _ASM_S390X_COMPAT_H */