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_MCHECK 0x00040000UL
16 #define PSW32_MASK_WAIT 0x00020000UL
17 #define PSW32_MASK_PSTATE 0x00010000UL
18 #define PSW32_MASK_ASC 0x0000C000UL
19 #define PSW32_MASK_CC 0x00003000UL
20 #define PSW32_MASK_PM 0x00000f00UL
22 #define PSW32_ADDR_AMODE31 0x80000000UL
23 #define PSW32_ADDR_INSN 0x7FFFFFFFUL
25 #define PSW32_BASE_BITS 0x00080000UL
27 #define PSW32_ASC_PRIMARY 0x00000000UL
28 #define PSW32_ASC_ACCREG 0x00004000UL
29 #define PSW32_ASC_SECONDARY 0x00008000UL
30 #define PSW32_ASC_HOME 0x0000C000UL
32 #define PSW32_MASK_MERGE(CURRENT,NEW) \
33 (((CURRENT) & ~(PSW32_MASK_CC|PSW32_MASK_PM)) | \
34 ((NEW) & (PSW32_MASK_CC|PSW32_MASK_PM)))
36 extern long psw32_user_bits;
38 #define COMPAT_USER_HZ 100
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;
69 struct compat_timespec {
74 struct compat_timeval {
83 compat_mode_t st_mode;
84 compat_nlink_t st_nlink;
85 __compat_uid_t st_uid;
86 __compat_gid_t st_gid;
102 struct compat_flock {
105 compat_off_t l_start;
112 #define F_SETLKW64 14
114 struct compat_flock64 {
117 compat_loff_t l_start;
122 struct compat_statfs {
130 compat_fsid_t f_fsid;
136 #define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
137 #define COMPAT_RLIM_INFINITY 0xffffffff
139 typedef u32 compat_old_sigset_t; /* at least 32 bits */
141 #define _COMPAT_NSIG 64
142 #define _COMPAT_NSIG_BPW 32
144 typedef u32 compat_sigset_word;
146 #define COMPAT_OFF_T_MAX 0x7fffffff
147 #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
150 * A pointer passed in from user mode. This should not
151 * be used for syscall parameters, just declare them
152 * as pointers because the syscall entry code will have
153 * appropriately converted them already.
155 typedef u32 compat_uptr_t;
157 static inline void __user *compat_ptr(compat_uptr_t uptr)
159 return (void __user *)(unsigned long)(uptr & 0x7fffffffUL);
162 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
164 return (u32)(unsigned long)uptr;
169 static inline int is_compat_task(void)
171 return test_thread_flag(TIF_31BIT);
176 static inline int is_compat_task(void)
183 static inline void __user *compat_alloc_user_space(long len)
187 stack = KSTK_ESP(current);
188 if (is_compat_task())
189 stack &= 0x7fffffffUL;
190 return (void __user *) (stack - len);
193 struct compat_ipc64_perm {
195 __compat_uid32_t uid;
196 __compat_gid32_t gid;
197 __compat_uid32_t cuid;
198 __compat_gid32_t cgid;
200 unsigned short __pad1;
202 unsigned short __pad2;
203 unsigned int __unused1;
204 unsigned int __unused2;
207 struct compat_semid64_ds {
208 struct compat_ipc64_perm sem_perm;
209 compat_time_t sem_otime;
210 compat_ulong_t __pad1;
211 compat_time_t sem_ctime;
212 compat_ulong_t __pad2;
213 compat_ulong_t sem_nsems;
214 compat_ulong_t __unused1;
215 compat_ulong_t __unused2;
218 struct compat_msqid64_ds {
219 struct compat_ipc64_perm msg_perm;
220 compat_time_t msg_stime;
221 compat_ulong_t __pad1;
222 compat_time_t msg_rtime;
223 compat_ulong_t __pad2;
224 compat_time_t msg_ctime;
225 compat_ulong_t __pad3;
226 compat_ulong_t msg_cbytes;
227 compat_ulong_t msg_qnum;
228 compat_ulong_t msg_qbytes;
229 compat_pid_t msg_lspid;
230 compat_pid_t msg_lrpid;
231 compat_ulong_t __unused1;
232 compat_ulong_t __unused2;
235 struct compat_shmid64_ds {
236 struct compat_ipc64_perm shm_perm;
237 compat_size_t shm_segsz;
238 compat_time_t shm_atime;
239 compat_ulong_t __pad1;
240 compat_time_t shm_dtime;
241 compat_ulong_t __pad2;
242 compat_time_t shm_ctime;
243 compat_ulong_t __pad3;
244 compat_pid_t shm_cpid;
245 compat_pid_t shm_lpid;
246 compat_ulong_t shm_nattch;
247 compat_ulong_t __unused1;
248 compat_ulong_t __unused2;
250 #endif /* _ASM_S390X_COMPAT_H */