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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_POWERPC_COMPAT_H
3#define _ASM_POWERPC_COMPAT_H
4#ifdef __KERNEL__
5/*
6 * Architecture specific compatibility types
7 */
8#include <linux/types.h>
9#include <linux/sched.h>
10
11#define compat_ipc_pid_t compat_ipc_pid_t
12typedef u16 compat_ipc_pid_t;
13
14#define compat_ipc64_perm compat_ipc64_perm
15
16#include <asm-generic/compat.h>
17
18#ifdef __BIG_ENDIAN__
19#define COMPAT_UTS_MACHINE "ppc\0\0"
20#else
21#define COMPAT_UTS_MACHINE "ppcle\0\0"
22#endif
23
24typedef s16 compat_nlink_t;
25
26struct compat_stat {
27 compat_dev_t st_dev;
28 compat_ino_t st_ino;
29 compat_mode_t st_mode;
30 compat_nlink_t st_nlink;
31 __compat_uid32_t st_uid;
32 __compat_gid32_t st_gid;
33 compat_dev_t st_rdev;
34 compat_off_t st_size;
35 compat_off_t st_blksize;
36 compat_off_t st_blocks;
37 old_time32_t st_atime;
38 u32 st_atime_nsec;
39 old_time32_t st_mtime;
40 u32 st_mtime_nsec;
41 old_time32_t st_ctime;
42 u32 st_ctime_nsec;
43 u32 __unused4[2];
44};
45
46/*
47 * ipc64_perm is actually 32/64bit clean but since the compat layer refers to
48 * it we may as well define it.
49 */
50struct compat_ipc64_perm {
51 compat_key_t key;
52 __compat_uid_t uid;
53 __compat_gid_t gid;
54 __compat_uid_t cuid;
55 __compat_gid_t cgid;
56 compat_mode_t mode;
57 unsigned int seq;
58 unsigned int __pad2;
59 unsigned long __unused1; /* yes they really are 64bit pads */
60 unsigned long __unused2;
61};
62
63struct compat_semid64_ds {
64 struct compat_ipc64_perm sem_perm;
65 unsigned int sem_otime_high;
66 unsigned int sem_otime;
67 unsigned int sem_ctime_high;
68 unsigned int sem_ctime;
69 compat_ulong_t sem_nsems;
70 compat_ulong_t __unused3;
71 compat_ulong_t __unused4;
72};
73
74struct compat_msqid64_ds {
75 struct compat_ipc64_perm msg_perm;
76 unsigned int msg_stime_high;
77 unsigned int msg_stime;
78 unsigned int msg_rtime_high;
79 unsigned int msg_rtime;
80 unsigned int msg_ctime_high;
81 unsigned int msg_ctime;
82 compat_ulong_t msg_cbytes;
83 compat_ulong_t msg_qnum;
84 compat_ulong_t msg_qbytes;
85 compat_pid_t msg_lspid;
86 compat_pid_t msg_lrpid;
87 compat_ulong_t __unused4;
88 compat_ulong_t __unused5;
89};
90
91struct compat_shmid64_ds {
92 struct compat_ipc64_perm shm_perm;
93 unsigned int shm_atime_high;
94 unsigned int shm_atime;
95 unsigned int shm_dtime_high;
96 unsigned int shm_dtime;
97 unsigned int shm_ctime_high;
98 unsigned int shm_ctime;
99 unsigned int __unused4;
100 compat_size_t shm_segsz;
101 compat_pid_t shm_cpid;
102 compat_pid_t shm_lpid;
103 compat_ulong_t shm_nattch;
104 compat_ulong_t __unused5;
105 compat_ulong_t __unused6;
106};
107
108static inline int is_compat_task(void)
109{
110 return is_32bit_task();
111}
112
113#endif /* __KERNEL__ */
114#endif /* _ASM_POWERPC_COMPAT_H */
1#ifndef _ASM_POWERPC_COMPAT_H
2#define _ASM_POWERPC_COMPAT_H
3#ifdef __KERNEL__
4/*
5 * Architecture specific compatibility types
6 */
7#include <linux/types.h>
8#include <linux/sched.h>
9
10#define COMPAT_USER_HZ 100
11#ifdef __BIG_ENDIAN__
12#define COMPAT_UTS_MACHINE "ppc\0\0"
13#else
14#define COMPAT_UTS_MACHINE "ppcle\0\0"
15#endif
16
17typedef u32 compat_size_t;
18typedef s32 compat_ssize_t;
19typedef s32 compat_time_t;
20typedef s32 compat_clock_t;
21typedef s32 compat_pid_t;
22typedef u32 __compat_uid_t;
23typedef u32 __compat_gid_t;
24typedef u32 __compat_uid32_t;
25typedef u32 __compat_gid32_t;
26typedef u32 compat_mode_t;
27typedef u32 compat_ino_t;
28typedef u32 compat_dev_t;
29typedef s32 compat_off_t;
30typedef s64 compat_loff_t;
31typedef s16 compat_nlink_t;
32typedef u16 compat_ipc_pid_t;
33typedef s32 compat_daddr_t;
34typedef u32 compat_caddr_t;
35typedef __kernel_fsid_t compat_fsid_t;
36typedef s32 compat_key_t;
37typedef s32 compat_timer_t;
38
39typedef s32 compat_int_t;
40typedef s32 compat_long_t;
41typedef s64 compat_s64;
42typedef u32 compat_uint_t;
43typedef u32 compat_ulong_t;
44typedef u64 compat_u64;
45typedef u32 compat_uptr_t;
46
47struct compat_timespec {
48 compat_time_t tv_sec;
49 s32 tv_nsec;
50};
51
52struct compat_timeval {
53 compat_time_t tv_sec;
54 s32 tv_usec;
55};
56
57struct compat_stat {
58 compat_dev_t st_dev;
59 compat_ino_t st_ino;
60 compat_mode_t st_mode;
61 compat_nlink_t st_nlink;
62 __compat_uid32_t st_uid;
63 __compat_gid32_t st_gid;
64 compat_dev_t st_rdev;
65 compat_off_t st_size;
66 compat_off_t st_blksize;
67 compat_off_t st_blocks;
68 compat_time_t st_atime;
69 u32 st_atime_nsec;
70 compat_time_t st_mtime;
71 u32 st_mtime_nsec;
72 compat_time_t st_ctime;
73 u32 st_ctime_nsec;
74 u32 __unused4[2];
75};
76
77struct compat_flock {
78 short l_type;
79 short l_whence;
80 compat_off_t l_start;
81 compat_off_t l_len;
82 compat_pid_t l_pid;
83};
84
85#define F_GETLK64 12 /* using 'struct flock64' */
86#define F_SETLK64 13
87#define F_SETLKW64 14
88
89struct compat_flock64 {
90 short l_type;
91 short l_whence;
92 compat_loff_t l_start;
93 compat_loff_t l_len;
94 compat_pid_t l_pid;
95};
96
97struct compat_statfs {
98 int f_type;
99 int f_bsize;
100 int f_blocks;
101 int f_bfree;
102 int f_bavail;
103 int f_files;
104 int f_ffree;
105 compat_fsid_t f_fsid;
106 int f_namelen; /* SunOS ignores this field. */
107 int f_frsize;
108 int f_flags;
109 int f_spare[4];
110};
111
112#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
113#define COMPAT_RLIM_INFINITY 0xffffffff
114
115typedef u32 compat_old_sigset_t;
116
117#define _COMPAT_NSIG 64
118#define _COMPAT_NSIG_BPW 32
119
120typedef u32 compat_sigset_word;
121
122typedef union compat_sigval {
123 compat_int_t sival_int;
124 compat_uptr_t sival_ptr;
125} compat_sigval_t;
126
127#define SI_PAD_SIZE32 (128/sizeof(int) - 3)
128
129typedef struct compat_siginfo {
130 int si_signo;
131 int si_errno;
132 int si_code;
133
134 union {
135 int _pad[SI_PAD_SIZE32];
136
137 /* kill() */
138 struct {
139 compat_pid_t _pid; /* sender's pid */
140 __compat_uid_t _uid; /* sender's uid */
141 } _kill;
142
143 /* POSIX.1b timers */
144 struct {
145 compat_timer_t _tid; /* timer id */
146 int _overrun; /* overrun count */
147 compat_sigval_t _sigval; /* same as below */
148 int _sys_private; /* not to be passed to user */
149 } _timer;
150
151 /* POSIX.1b signals */
152 struct {
153 compat_pid_t _pid; /* sender's pid */
154 __compat_uid_t _uid; /* sender's uid */
155 compat_sigval_t _sigval;
156 } _rt;
157
158 /* SIGCHLD */
159 struct {
160 compat_pid_t _pid; /* which child */
161 __compat_uid_t _uid; /* sender's uid */
162 int _status; /* exit code */
163 compat_clock_t _utime;
164 compat_clock_t _stime;
165 } _sigchld;
166
167 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGEMT */
168 struct {
169 unsigned int _addr; /* faulting insn/memory ref. */
170 } _sigfault;
171
172 /* SIGPOLL */
173 struct {
174 int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
175 int _fd;
176 } _sigpoll;
177 } _sifields;
178} compat_siginfo_t;
179
180#define COMPAT_OFF_T_MAX 0x7fffffff
181#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
182
183/*
184 * A pointer passed in from user mode. This should not
185 * be used for syscall parameters, just declare them
186 * as pointers because the syscall entry code will have
187 * appropriately converted them already.
188 */
189
190static inline void __user *compat_ptr(compat_uptr_t uptr)
191{
192 return (void __user *)(unsigned long)uptr;
193}
194
195static inline compat_uptr_t ptr_to_compat(void __user *uptr)
196{
197 return (u32)(unsigned long)uptr;
198}
199
200static inline void __user *arch_compat_alloc_user_space(long len)
201{
202 struct pt_regs *regs = current->thread.regs;
203 unsigned long usp = regs->gpr[1];
204
205 /*
206 * We can't access below the stack pointer in the 32bit ABI and
207 * can access 288 bytes in the 64bit big-endian ABI,
208 * or 512 bytes with the new ELFv2 little-endian ABI.
209 */
210 if (!is_32bit_task())
211 usp -= USER_REDZONE_SIZE;
212
213 return (void __user *) (usp - len);
214}
215
216/*
217 * ipc64_perm is actually 32/64bit clean but since the compat layer refers to
218 * it we may as well define it.
219 */
220struct compat_ipc64_perm {
221 compat_key_t key;
222 __compat_uid_t uid;
223 __compat_gid_t gid;
224 __compat_uid_t cuid;
225 __compat_gid_t cgid;
226 compat_mode_t mode;
227 unsigned int seq;
228 unsigned int __pad2;
229 unsigned long __unused1; /* yes they really are 64bit pads */
230 unsigned long __unused2;
231};
232
233struct compat_semid64_ds {
234 struct compat_ipc64_perm sem_perm;
235 unsigned int __unused1;
236 compat_time_t sem_otime;
237 unsigned int __unused2;
238 compat_time_t sem_ctime;
239 compat_ulong_t sem_nsems;
240 compat_ulong_t __unused3;
241 compat_ulong_t __unused4;
242};
243
244struct compat_msqid64_ds {
245 struct compat_ipc64_perm msg_perm;
246 unsigned int __unused1;
247 compat_time_t msg_stime;
248 unsigned int __unused2;
249 compat_time_t msg_rtime;
250 unsigned int __unused3;
251 compat_time_t msg_ctime;
252 compat_ulong_t msg_cbytes;
253 compat_ulong_t msg_qnum;
254 compat_ulong_t msg_qbytes;
255 compat_pid_t msg_lspid;
256 compat_pid_t msg_lrpid;
257 compat_ulong_t __unused4;
258 compat_ulong_t __unused5;
259};
260
261struct compat_shmid64_ds {
262 struct compat_ipc64_perm shm_perm;
263 unsigned int __unused1;
264 compat_time_t shm_atime;
265 unsigned int __unused2;
266 compat_time_t shm_dtime;
267 unsigned int __unused3;
268 compat_time_t shm_ctime;
269 unsigned int __unused4;
270 compat_size_t shm_segsz;
271 compat_pid_t shm_cpid;
272 compat_pid_t shm_lpid;
273 compat_ulong_t shm_nattch;
274 compat_ulong_t __unused5;
275 compat_ulong_t __unused6;
276};
277
278static inline int is_compat_task(void)
279{
280 return is_32bit_task();
281}
282
283#endif /* __KERNEL__ */
284#endif /* _ASM_POWERPC_COMPAT_H */