1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_PARISC_COMPAT_H
3 #define _ASM_PARISC_COMPAT_H
5 * Architecture specific compatibility types
7 #include <linux/types.h>
8 #include <linux/sched.h>
9 #include <linux/thread_info.h>
11 #define COMPAT_USER_HZ 100
12 #define COMPAT_UTS_MACHINE "parisc\0\0"
14 typedef u32 compat_size_t;
15 typedef s32 compat_ssize_t;
16 typedef s32 compat_time_t;
17 typedef s32 compat_clock_t;
18 typedef s32 compat_pid_t;
19 typedef u32 __compat_uid_t;
20 typedef u32 __compat_gid_t;
21 typedef u32 __compat_uid32_t;
22 typedef u32 __compat_gid32_t;
23 typedef u16 compat_mode_t;
24 typedef u32 compat_ino_t;
25 typedef u32 compat_dev_t;
26 typedef s32 compat_off_t;
27 typedef s64 compat_loff_t;
28 typedef u16 compat_nlink_t;
29 typedef u16 compat_ipc_pid_t;
30 typedef s32 compat_daddr_t;
31 typedef u32 compat_caddr_t;
32 typedef s32 compat_key_t;
33 typedef s32 compat_timer_t;
35 typedef s32 compat_int_t;
36 typedef s32 compat_long_t;
37 typedef s64 compat_s64;
38 typedef u32 compat_uint_t;
39 typedef u32 compat_ulong_t;
40 typedef u64 compat_u64;
41 typedef u32 compat_uptr_t;
43 struct compat_timespec {
48 struct compat_timeval {
54 compat_dev_t st_dev; /* dev_t is 32 bits on parisc */
55 compat_ino_t st_ino; /* 32 bits */
56 compat_mode_t st_mode; /* 16 bits */
57 compat_nlink_t st_nlink; /* 16 bits */
58 u16 st_reserved1; /* old st_uid */
59 u16 st_reserved2; /* old st_gid */
62 compat_time_t st_atime;
64 compat_time_t st_mtime;
66 compat_time_t st_ctime;
70 u32 __unused1; /* ACL stuff */
71 compat_dev_t __unused2; /* network */
72 compat_ino_t __unused3; /* network */
73 u32 __unused4; /* cnodes */
74 u16 __unused5; /* netsite */
76 compat_dev_t st_realdev;
79 __compat_uid32_t st_uid;
80 __compat_gid32_t st_gid;
92 struct compat_flock64 {
95 compat_loff_t l_start;
100 struct compat_statfs {
108 __kernel_fsid_t f_fsid;
115 struct compat_sigcontext {
116 compat_int_t sc_flags;
117 compat_int_t sc_gr[32]; /* PSW in sc_gr[0] */
119 compat_int_t sc_iasq[2];
120 compat_int_t sc_iaoq[2];
121 compat_int_t sc_sar; /* cr11 */
124 #define COMPAT_RLIM_INFINITY 0xffffffff
126 typedef u32 compat_old_sigset_t; /* at least 32 bits */
128 #define _COMPAT_NSIG 64
129 #define _COMPAT_NSIG_BPW 32
131 typedef u32 compat_sigset_word;
133 #define COMPAT_OFF_T_MAX 0x7fffffff
135 struct compat_ipc64_perm {
141 unsigned short int __pad1;
143 unsigned short int __pad2;
144 unsigned short int seq;
146 unsigned long __unused1; /* yes they really are 64bit pads */
147 unsigned long __unused2;
150 struct compat_semid64_ds {
151 struct compat_ipc64_perm sem_perm;
152 unsigned int __unused1;
153 compat_time_t sem_otime;
154 unsigned int __unused2;
155 compat_time_t sem_ctime;
156 compat_ulong_t sem_nsems;
157 compat_ulong_t __unused3;
158 compat_ulong_t __unused4;
161 struct compat_msqid64_ds {
162 struct compat_ipc64_perm msg_perm;
163 unsigned int __unused1;
164 compat_time_t msg_stime;
165 unsigned int __unused2;
166 compat_time_t msg_rtime;
167 unsigned int __unused3;
168 compat_time_t msg_ctime;
169 compat_ulong_t msg_cbytes;
170 compat_ulong_t msg_qnum;
171 compat_ulong_t msg_qbytes;
172 compat_pid_t msg_lspid;
173 compat_pid_t msg_lrpid;
174 compat_ulong_t __unused4;
175 compat_ulong_t __unused5;
178 struct compat_shmid64_ds {
179 struct compat_ipc64_perm shm_perm;
180 unsigned int __unused1;
181 compat_time_t shm_atime;
182 unsigned int __unused2;
183 compat_time_t shm_dtime;
184 unsigned int __unused3;
185 compat_time_t shm_ctime;
186 unsigned int __unused4;
187 compat_size_t shm_segsz;
188 compat_pid_t shm_cpid;
189 compat_pid_t shm_lpid;
190 compat_ulong_t shm_nattch;
191 compat_ulong_t __unused5;
192 compat_ulong_t __unused6;
196 * A pointer passed in from user mode. This should not
197 * be used for syscall parameters, just declare them
198 * as pointers because the syscall entry code will have
199 * appropriately converted them already.
202 static inline void __user *compat_ptr(compat_uptr_t uptr)
204 return (void __user *)(unsigned long)uptr;
207 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
209 return (u32)(unsigned long)uptr;
212 static __inline__ void __user *arch_compat_alloc_user_space(long len)
214 struct pt_regs *regs = ¤t->thread.regs;
215 return (void __user *)regs->gr[30];
218 static inline int __is_compat_task(struct task_struct *t)
220 return test_ti_thread_flag(task_thread_info(t), TIF_32BIT);
223 static inline int is_compat_task(void)
225 return __is_compat_task(current);
228 #endif /* _ASM_PARISC_COMPAT_H */