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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
8882a4da DG |
2 | #ifndef _ASM_POWERPC_COMPAT_H |
3 | #define _ASM_POWERPC_COMPAT_H | |
88ced031 | 4 | #ifdef __KERNEL__ |
1da177e4 LT |
5 | /* |
6 | * Architecture specific compatibility types | |
7 | */ | |
8 | #include <linux/types.h> | |
9 | #include <linux/sched.h> | |
10 | ||
e28cbf22 | 11 | #define COMPAT_USER_HZ 100 |
422b9b96 | 12 | #ifdef __BIG_ENDIAN__ |
e28cbf22 | 13 | #define COMPAT_UTS_MACHINE "ppc\0\0" |
422b9b96 AB |
14 | #else |
15 | #define COMPAT_UTS_MACHINE "ppcle\0\0" | |
16 | #endif | |
1da177e4 LT |
17 | |
18 | typedef u32 compat_size_t; | |
19 | typedef s32 compat_ssize_t; | |
1da177e4 LT |
20 | typedef s32 compat_clock_t; |
21 | typedef s32 compat_pid_t; | |
202e5979 SR |
22 | typedef u32 __compat_uid_t; |
23 | typedef u32 __compat_gid_t; | |
24 | typedef u32 __compat_uid32_t; | |
25 | typedef u32 __compat_gid32_t; | |
1da177e4 LT |
26 | typedef u32 compat_mode_t; |
27 | typedef u32 compat_ino_t; | |
28 | typedef u32 compat_dev_t; | |
29 | typedef s32 compat_off_t; | |
30 | typedef s64 compat_loff_t; | |
31 | typedef s16 compat_nlink_t; | |
32 | typedef u16 compat_ipc_pid_t; | |
33 | typedef s32 compat_daddr_t; | |
34 | typedef u32 compat_caddr_t; | |
35 | typedef __kernel_fsid_t compat_fsid_t; | |
36 | typedef s32 compat_key_t; | |
0d77e5a2 | 37 | typedef s32 compat_timer_t; |
1da177e4 LT |
38 | |
39 | typedef s32 compat_int_t; | |
40 | typedef s32 compat_long_t; | |
4b777587 | 41 | typedef s64 compat_s64; |
1da177e4 LT |
42 | typedef u32 compat_uint_t; |
43 | typedef u32 compat_ulong_t; | |
4b777587 | 44 | typedef u64 compat_u64; |
751f409d | 45 | typedef u32 compat_uptr_t; |
1da177e4 | 46 | |
1da177e4 LT |
47 | struct compat_stat { |
48 | compat_dev_t st_dev; | |
49 | compat_ino_t st_ino; | |
50 | compat_mode_t st_mode; | |
8882a4da | 51 | compat_nlink_t st_nlink; |
202e5979 SR |
52 | __compat_uid32_t st_uid; |
53 | __compat_gid32_t st_gid; | |
1da177e4 LT |
54 | compat_dev_t st_rdev; |
55 | compat_off_t st_size; | |
56 | compat_off_t st_blksize; | |
57 | compat_off_t st_blocks; | |
9afc5eee | 58 | old_time32_t st_atime; |
1da177e4 | 59 | u32 st_atime_nsec; |
9afc5eee | 60 | old_time32_t st_mtime; |
1da177e4 | 61 | u32 st_mtime_nsec; |
9afc5eee | 62 | old_time32_t st_ctime; |
1da177e4 LT |
63 | u32 st_ctime_nsec; |
64 | u32 __unused4[2]; | |
65 | }; | |
66 | ||
67 | struct compat_flock { | |
68 | short l_type; | |
69 | short l_whence; | |
70 | compat_off_t l_start; | |
71 | compat_off_t l_len; | |
72 | compat_pid_t l_pid; | |
73 | }; | |
74 | ||
75 | #define F_GETLK64 12 /* using 'struct flock64' */ | |
76 | #define F_SETLK64 13 | |
77 | #define F_SETLKW64 14 | |
78 | ||
79 | struct compat_flock64 { | |
80 | short l_type; | |
81 | short l_whence; | |
82 | compat_loff_t l_start; | |
83 | compat_loff_t l_len; | |
84 | compat_pid_t l_pid; | |
85 | }; | |
86 | ||
87 | struct compat_statfs { | |
88 | int f_type; | |
89 | int f_bsize; | |
90 | int f_blocks; | |
91 | int f_bfree; | |
92 | int f_bavail; | |
93 | int f_files; | |
94 | int f_ffree; | |
95 | compat_fsid_t f_fsid; | |
96 | int f_namelen; /* SunOS ignores this field. */ | |
97 | int f_frsize; | |
1448c721 EB |
98 | int f_flags; |
99 | int f_spare[4]; | |
1da177e4 LT |
100 | }; |
101 | ||
1da177e4 LT |
102 | #define COMPAT_RLIM_INFINITY 0xffffffff |
103 | ||
104 | typedef u32 compat_old_sigset_t; | |
105 | ||
106 | #define _COMPAT_NSIG 64 | |
107 | #define _COMPAT_NSIG_BPW 32 | |
108 | ||
109 | typedef u32 compat_sigset_word; | |
110 | ||
111 | #define COMPAT_OFF_T_MAX 0x7fffffff | |
1da177e4 LT |
112 | |
113 | /* | |
114 | * A pointer passed in from user mode. This should not | |
115 | * be used for syscall parameters, just declare them | |
116 | * as pointers because the syscall entry code will have | |
8b3de0df | 117 | * appropriately converted them already. |
1da177e4 | 118 | */ |
1da177e4 LT |
119 | |
120 | static inline void __user *compat_ptr(compat_uptr_t uptr) | |
121 | { | |
122 | return (void __user *)(unsigned long)uptr; | |
123 | } | |
124 | ||
29e646df AV |
125 | static inline compat_uptr_t ptr_to_compat(void __user *uptr) |
126 | { | |
127 | return (u32)(unsigned long)uptr; | |
128 | } | |
129 | ||
c41d68a5 | 130 | static inline void __user *arch_compat_alloc_user_space(long len) |
1da177e4 LT |
131 | { |
132 | struct pt_regs *regs = current->thread.regs; | |
133 | unsigned long usp = regs->gpr[1]; | |
134 | ||
135 | /* | |
25985edc | 136 | * We can't access below the stack pointer in the 32bit ABI and |
573ebfa6 PM |
137 | * can access 288 bytes in the 64bit big-endian ABI, |
138 | * or 512 bytes with the new ELFv2 little-endian ABI. | |
1da177e4 | 139 | */ |
cab175f9 | 140 | if (!is_32bit_task()) |
573ebfa6 | 141 | usp -= USER_REDZONE_SIZE; |
1da177e4 LT |
142 | |
143 | return (void __user *) (usp - len); | |
144 | } | |
145 | ||
146 | /* | |
147 | * ipc64_perm is actually 32/64bit clean but since the compat layer refers to | |
148 | * it we may as well define it. | |
149 | */ | |
150 | struct compat_ipc64_perm { | |
151 | compat_key_t key; | |
202e5979 SR |
152 | __compat_uid_t uid; |
153 | __compat_gid_t gid; | |
154 | __compat_uid_t cuid; | |
155 | __compat_gid_t cgid; | |
1da177e4 LT |
156 | compat_mode_t mode; |
157 | unsigned int seq; | |
158 | unsigned int __pad2; | |
159 | unsigned long __unused1; /* yes they really are 64bit pads */ | |
160 | unsigned long __unused2; | |
161 | }; | |
162 | ||
163 | struct compat_semid64_ds { | |
164 | struct compat_ipc64_perm sem_perm; | |
d0b67de9 AB |
165 | unsigned int sem_otime_high; |
166 | unsigned int sem_otime; | |
167 | unsigned int sem_ctime_high; | |
168 | unsigned int sem_ctime; | |
1da177e4 LT |
169 | compat_ulong_t sem_nsems; |
170 | compat_ulong_t __unused3; | |
171 | compat_ulong_t __unused4; | |
172 | }; | |
173 | ||
174 | struct compat_msqid64_ds { | |
175 | struct compat_ipc64_perm msg_perm; | |
d0b67de9 AB |
176 | unsigned int msg_stime_high; |
177 | unsigned int msg_stime; | |
178 | unsigned int msg_rtime_high; | |
179 | unsigned int msg_rtime; | |
180 | unsigned int msg_ctime_high; | |
181 | unsigned int msg_ctime; | |
1da177e4 LT |
182 | compat_ulong_t msg_cbytes; |
183 | compat_ulong_t msg_qnum; | |
184 | compat_ulong_t msg_qbytes; | |
185 | compat_pid_t msg_lspid; | |
186 | compat_pid_t msg_lrpid; | |
187 | compat_ulong_t __unused4; | |
188 | compat_ulong_t __unused5; | |
189 | }; | |
190 | ||
191 | struct compat_shmid64_ds { | |
192 | struct compat_ipc64_perm shm_perm; | |
d0b67de9 AB |
193 | unsigned int shm_atime_high; |
194 | unsigned int shm_atime; | |
195 | unsigned int shm_dtime_high; | |
196 | unsigned int shm_dtime; | |
197 | unsigned int shm_ctime_high; | |
198 | unsigned int shm_ctime; | |
1da177e4 LT |
199 | unsigned int __unused4; |
200 | compat_size_t shm_segsz; | |
201 | compat_pid_t shm_cpid; | |
202 | compat_pid_t shm_lpid; | |
203 | compat_ulong_t shm_nattch; | |
204 | compat_ulong_t __unused5; | |
205 | compat_ulong_t __unused6; | |
206 | }; | |
207 | ||
5b101740 RM |
208 | static inline int is_compat_task(void) |
209 | { | |
cab175f9 | 210 | return is_32bit_task(); |
5b101740 RM |
211 | } |
212 | ||
88ced031 | 213 | #endif /* __KERNEL__ */ |
8882a4da | 214 | #endif /* _ASM_POWERPC_COMPAT_H */ |