1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_PARISC_COMPAT_H
3 #define _ASM_PARISC_COMPAT_H
4 /*
5 * Architecture specific compatibility types
6 */
7 #include <linux/types.h>
8 #include <linux/sched.h>
9 #include <linux/thread_info.h>
10
11 #define COMPAT_USER_HZ 100
12 #define COMPAT_UTS_MACHINE "parisc\0\0"
13
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;
34
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;
42
43 struct compat_timespec {
44 compat_time_t tv_sec;
45 s32 tv_nsec;
46 };
47
48 struct compat_timeval {
49 compat_time_t tv_sec;
50 s32 tv_usec;
51 };
52
53 struct compat_stat {
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 */
60 compat_dev_t st_rdev;
61 compat_off_t st_size;
62 compat_time_t st_atime;
63 u32 st_atime_nsec;
64 compat_time_t st_mtime;
65 u32 st_mtime_nsec;
66 compat_time_t st_ctime;
67 u32 st_ctime_nsec;
68 s32 st_blksize;
69 s32 st_blocks;
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 */
75 short st_fstype;
76 compat_dev_t st_realdev;
77 u16 st_basemode;
78 u16 st_spareshort;
79 __compat_uid32_t st_uid;
80 __compat_gid32_t st_gid;
81 u32 st_spare4[3];
82 };
83
84 struct compat_flock {
85 short l_type;
86 short l_whence;
87 compat_off_t l_start;
88 compat_off_t l_len;
89 compat_pid_t l_pid;
90 };
91
92 struct compat_flock64 {
93 short l_type;
94 short l_whence;
95 compat_loff_t l_start;
96 compat_loff_t l_len;
97 compat_pid_t l_pid;
98 };
99
100 struct compat_statfs {
101 s32 f_type;
102 s32 f_bsize;
103 s32 f_blocks;
104 s32 f_bfree;
105 s32 f_bavail;
106 s32 f_files;
107 s32 f_ffree;
108 __kernel_fsid_t f_fsid;
109 s32 f_namelen;
110 s32 f_frsize;
111 s32 f_flags;
112 s32 f_spare[4];
113 };
114
115 struct compat_sigcontext {
116 compat_int_t sc_flags;
117 compat_int_t sc_gr[32]; /* PSW in sc_gr[0] */
118 u64 sc_fr[32];
119 compat_int_t sc_iasq[2];
120 compat_int_t sc_iaoq[2];
121 compat_int_t sc_sar; /* cr11 */
122 };
123
124 #define COMPAT_RLIM_INFINITY 0xffffffff
125
126 typedef u32 compat_old_sigset_t; /* at least 32 bits */
127
128 #define _COMPAT_NSIG 64
129 #define _COMPAT_NSIG_BPW 32
130
131 typedef u32 compat_sigset_word;
132
133 typedef union compat_sigval {
134 compat_int_t sival_int;
135 compat_uptr_t sival_ptr;
136 } compat_sigval_t;
137
138 typedef struct compat_siginfo {
139 int si_signo;
140 int si_errno;
141 int si_code;
142
143 union {
144 int _pad[128/sizeof(int) - 3];
145
146 /* kill() */
147 struct {
148 unsigned int _pid; /* sender's pid */
149 unsigned int _uid; /* sender's uid */
150 } _kill;
151
152 /* POSIX.1b timers */
153 struct {
154 compat_timer_t _tid; /* timer id */
155 int _overrun; /* overrun count */
156 char _pad[sizeof(unsigned int) - sizeof(int)];
157 compat_sigval_t _sigval; /* same as below */
158 int _sys_private; /* not to be passed to user */
159 } _timer;
160
161 /* POSIX.1b signals */
162 struct {
163 unsigned int _pid; /* sender's pid */
164 unsigned int _uid; /* sender's uid */
165 compat_sigval_t _sigval;
166 } _rt;
167
168 /* SIGCHLD */
169 struct {
170 unsigned int _pid; /* which child */
171 unsigned int _uid; /* sender's uid */
172 int _status; /* exit code */
173 compat_clock_t _utime;
174 compat_clock_t _stime;
175 } _sigchld;
176
177 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
178 struct {
179 unsigned int _addr; /* faulting insn/memory ref. */
180 } _sigfault;
181
182 /* SIGPOLL */
183 struct {
184 int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
185 int _fd;
186 } _sigpoll;
187
188 /* SIGSYS */
189 struct {
190 compat_uptr_t _call_addr; /* calling user insn */
191 int _syscall; /* triggering system call number */
192 compat_uint_t _arch; /* AUDIT_ARCH_* of syscall */
193 } _sigsys;
194 } _sifields;
195 } compat_siginfo_t;
196
197 #define COMPAT_OFF_T_MAX 0x7fffffff
198
199 struct compat_ipc64_perm {
200 compat_key_t key;
201 __compat_uid_t uid;
202 __compat_gid_t gid;
203 __compat_uid_t cuid;
204 __compat_gid_t cgid;
205 unsigned short int __pad1;
206 compat_mode_t mode;
207 unsigned short int __pad2;
208 unsigned short int seq;
209 unsigned int __pad3;
210 unsigned long __unused1; /* yes they really are 64bit pads */
211 unsigned long __unused2;
212 };
213
214 struct compat_semid64_ds {
215 struct compat_ipc64_perm sem_perm;
216 unsigned int __unused1;
217 compat_time_t sem_otime;
218 unsigned int __unused2;
219 compat_time_t sem_ctime;
220 compat_ulong_t sem_nsems;
221 compat_ulong_t __unused3;
222 compat_ulong_t __unused4;
223 };
224
225 struct compat_msqid64_ds {
226 struct compat_ipc64_perm msg_perm;
227 unsigned int __unused1;
228 compat_time_t msg_stime;
229 unsigned int __unused2;
230 compat_time_t msg_rtime;
231 unsigned int __unused3;
232 compat_time_t msg_ctime;
233 compat_ulong_t msg_cbytes;
234 compat_ulong_t msg_qnum;
235 compat_ulong_t msg_qbytes;
236 compat_pid_t msg_lspid;
237 compat_pid_t msg_lrpid;
238 compat_ulong_t __unused4;
239 compat_ulong_t __unused5;
240 };
241
242 struct compat_shmid64_ds {
243 struct compat_ipc64_perm shm_perm;
244 unsigned int __unused1;
245 compat_time_t shm_atime;
246 unsigned int __unused2;
247 compat_time_t shm_dtime;
248 unsigned int __unused3;
249 compat_time_t shm_ctime;
250 unsigned int __unused4;
251 compat_size_t shm_segsz;
252 compat_pid_t shm_cpid;
253 compat_pid_t shm_lpid;
254 compat_ulong_t shm_nattch;
255 compat_ulong_t __unused5;
256 compat_ulong_t __unused6;
257 };
258
259 /*
260 * A pointer passed in from user mode. This should not
261 * be used for syscall parameters, just declare them
262 * as pointers because the syscall entry code will have
263 * appropriately converted them already.
264 */
265
266 static inline void __user *compat_ptr(compat_uptr_t uptr)
267 {
268 return (void __user *)(unsigned long)uptr;
269 }
270
271 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
272 {
273 return (u32)(unsigned long)uptr;
274 }
275
276 static __inline__ void __user *arch_compat_alloc_user_space(long len)
277 {
278 struct pt_regs *regs = ¤t->thread.regs;
279 return (void __user *)regs->gr[30];
280 }
281
282 static inline int __is_compat_task(struct task_struct *t)
283 {
284 return test_ti_thread_flag(task_thread_info(t), TIF_32BIT);
285 }
286
287 static inline int is_compat_task(void)
288 {
289 return __is_compat_task(current);
290 }
291
292 #endif /* _ASM_PARISC_COMPAT_H */
293
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