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867e359b CM |
1 | /* |
2 | * Copyright 2010 Tilera Corporation. All Rights Reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
6 | * as published by the Free Software Foundation, version 2. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, but | |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or | |
11 | * NON INFRINGEMENT. See the GNU General Public License for | |
12 | * more details. | |
13 | */ | |
14 | ||
15 | #ifndef _ASM_TILE_COMPAT_H | |
16 | #define _ASM_TILE_COMPAT_H | |
17 | ||
18 | /* | |
19 | * Architecture specific compatibility types | |
20 | */ | |
21 | #include <linux/types.h> | |
22 | #include <linux/sched.h> | |
23 | ||
24 | #define COMPAT_USER_HZ 100 | |
25 | ||
26 | /* "long" and pointer-based types are different. */ | |
27 | typedef s32 compat_long_t; | |
28 | typedef u32 compat_ulong_t; | |
29 | typedef u32 compat_size_t; | |
30 | typedef s32 compat_ssize_t; | |
31 | typedef s32 compat_off_t; | |
32 | typedef s32 compat_time_t; | |
33 | typedef s32 compat_clock_t; | |
34 | typedef u32 compat_ino_t; | |
35 | typedef u32 compat_caddr_t; | |
36 | typedef u32 compat_uptr_t; | |
37 | ||
38 | /* Many types are "int" or otherwise the same. */ | |
39 | typedef __kernel_pid_t compat_pid_t; | |
40 | typedef __kernel_uid_t __compat_uid_t; | |
41 | typedef __kernel_gid_t __compat_gid_t; | |
42 | typedef __kernel_uid32_t __compat_uid32_t; | |
43 | typedef __kernel_uid32_t __compat_gid32_t; | |
44 | typedef __kernel_mode_t compat_mode_t; | |
45 | typedef __kernel_dev_t compat_dev_t; | |
46 | typedef __kernel_loff_t compat_loff_t; | |
867e359b CM |
47 | typedef __kernel_ipc_pid_t compat_ipc_pid_t; |
48 | typedef __kernel_daddr_t compat_daddr_t; | |
49 | typedef __kernel_fsid_t compat_fsid_t; | |
50 | typedef __kernel_timer_t compat_timer_t; | |
51 | typedef __kernel_key_t compat_key_t; | |
52 | typedef int compat_int_t; | |
53 | typedef s64 compat_s64; | |
54 | typedef uint compat_uint_t; | |
55 | typedef u64 compat_u64; | |
56 | ||
57 | /* We use the same register dump format in 32-bit images. */ | |
58 | typedef unsigned long compat_elf_greg_t; | |
59 | #define COMPAT_ELF_NGREG (sizeof(struct pt_regs) / sizeof(compat_elf_greg_t)) | |
60 | typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG]; | |
61 | ||
62 | struct compat_timespec { | |
63 | compat_time_t tv_sec; | |
64 | s32 tv_nsec; | |
65 | }; | |
66 | ||
67 | struct compat_timeval { | |
68 | compat_time_t tv_sec; | |
69 | s32 tv_usec; | |
70 | }; | |
71 | ||
0707ad30 | 72 | #define compat_stat stat |
867e359b CM |
73 | #define compat_statfs statfs |
74 | ||
75 | struct compat_sysctl { | |
76 | unsigned int name; | |
77 | int nlen; | |
78 | unsigned int oldval; | |
79 | unsigned int oldlenp; | |
80 | unsigned int newval; | |
81 | unsigned int newlen; | |
82 | unsigned int __unused[4]; | |
83 | }; | |
84 | ||
85 | ||
86 | struct compat_flock { | |
87 | short l_type; | |
88 | short l_whence; | |
89 | compat_off_t l_start; | |
90 | compat_off_t l_len; | |
91 | compat_pid_t l_pid; | |
92 | }; | |
93 | ||
94 | #define F_GETLK64 12 /* using 'struct flock64' */ | |
95 | #define F_SETLK64 13 | |
96 | #define F_SETLKW64 14 | |
97 | ||
98 | struct compat_flock64 { | |
99 | short l_type; | |
100 | short l_whence; | |
101 | compat_loff_t l_start; | |
102 | compat_loff_t l_len; | |
103 | compat_pid_t l_pid; | |
104 | }; | |
105 | ||
106 | #define COMPAT_RLIM_INFINITY 0xffffffff | |
107 | ||
108 | #define _COMPAT_NSIG 64 | |
109 | #define _COMPAT_NSIG_BPW 32 | |
110 | ||
111 | typedef u32 compat_sigset_word; | |
112 | ||
751f409d DV |
113 | typedef union compat_sigval { |
114 | compat_int_t sival_int; | |
115 | compat_uptr_t sival_ptr; | |
116 | } compat_sigval_t; | |
117 | ||
118 | #define COMPAT_SI_PAD_SIZE (128/sizeof(int) - 3) | |
119 | ||
120 | typedef struct compat_siginfo { | |
121 | int si_signo; | |
122 | int si_errno; | |
123 | int si_code; | |
124 | ||
125 | union { | |
126 | int _pad[COMPAT_SI_PAD_SIZE]; | |
127 | ||
128 | /* kill() */ | |
129 | struct { | |
130 | unsigned int _pid; /* sender's pid */ | |
131 | unsigned int _uid; /* sender's uid */ | |
132 | } _kill; | |
133 | ||
134 | /* POSIX.1b timers */ | |
135 | struct { | |
136 | compat_timer_t _tid; /* timer id */ | |
137 | int _overrun; /* overrun count */ | |
138 | compat_sigval_t _sigval; /* same as below */ | |
139 | int _sys_private; /* not to be passed to user */ | |
140 | int _overrun_incr; /* amount to add to overrun */ | |
141 | } _timer; | |
142 | ||
143 | /* POSIX.1b signals */ | |
144 | struct { | |
145 | unsigned int _pid; /* sender's pid */ | |
146 | unsigned int _uid; /* sender's uid */ | |
147 | compat_sigval_t _sigval; | |
148 | } _rt; | |
149 | ||
150 | /* SIGCHLD */ | |
151 | struct { | |
152 | unsigned int _pid; /* which child */ | |
153 | unsigned int _uid; /* sender's uid */ | |
154 | int _status; /* exit code */ | |
155 | compat_clock_t _utime; | |
156 | compat_clock_t _stime; | |
157 | } _sigchld; | |
158 | ||
159 | /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ | |
160 | struct { | |
161 | unsigned int _addr; /* faulting insn/memory ref. */ | |
162 | #ifdef __ARCH_SI_TRAPNO | |
163 | int _trapno; /* TRAP # which caused the signal */ | |
164 | #endif | |
165 | } _sigfault; | |
166 | ||
167 | /* SIGPOLL */ | |
168 | struct { | |
169 | int _band; /* POLL_IN, POLL_OUT, POLL_MSG */ | |
170 | int _fd; | |
171 | } _sigpoll; | |
172 | } _sifields; | |
173 | } compat_siginfo_t; | |
174 | ||
867e359b CM |
175 | #define COMPAT_OFF_T_MAX 0x7fffffff |
176 | #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL | |
177 | ||
178 | struct compat_ipc64_perm { | |
179 | compat_key_t key; | |
180 | __compat_uid32_t uid; | |
181 | __compat_gid32_t gid; | |
182 | __compat_uid32_t cuid; | |
183 | __compat_gid32_t cgid; | |
184 | unsigned short mode; | |
185 | unsigned short __pad1; | |
186 | unsigned short seq; | |
187 | unsigned short __pad2; | |
188 | compat_ulong_t unused1; | |
189 | compat_ulong_t unused2; | |
190 | }; | |
191 | ||
192 | struct compat_semid64_ds { | |
193 | struct compat_ipc64_perm sem_perm; | |
194 | compat_time_t sem_otime; | |
195 | compat_ulong_t __unused1; | |
196 | compat_time_t sem_ctime; | |
197 | compat_ulong_t __unused2; | |
198 | compat_ulong_t sem_nsems; | |
199 | compat_ulong_t __unused3; | |
200 | compat_ulong_t __unused4; | |
201 | }; | |
202 | ||
203 | struct compat_msqid64_ds { | |
204 | struct compat_ipc64_perm msg_perm; | |
205 | compat_time_t msg_stime; | |
206 | compat_ulong_t __unused1; | |
207 | compat_time_t msg_rtime; | |
208 | compat_ulong_t __unused2; | |
209 | compat_time_t msg_ctime; | |
210 | compat_ulong_t __unused3; | |
211 | compat_ulong_t msg_cbytes; | |
212 | compat_ulong_t msg_qnum; | |
213 | compat_ulong_t msg_qbytes; | |
214 | compat_pid_t msg_lspid; | |
215 | compat_pid_t msg_lrpid; | |
216 | compat_ulong_t __unused4; | |
217 | compat_ulong_t __unused5; | |
218 | }; | |
219 | ||
220 | struct compat_shmid64_ds { | |
221 | struct compat_ipc64_perm shm_perm; | |
222 | compat_size_t shm_segsz; | |
223 | compat_time_t shm_atime; | |
224 | compat_ulong_t __unused1; | |
225 | compat_time_t shm_dtime; | |
226 | compat_ulong_t __unused2; | |
227 | compat_time_t shm_ctime; | |
228 | compat_ulong_t __unused3; | |
229 | compat_pid_t shm_cpid; | |
230 | compat_pid_t shm_lpid; | |
231 | compat_ulong_t shm_nattch; | |
232 | compat_ulong_t __unused4; | |
233 | compat_ulong_t __unused5; | |
234 | }; | |
235 | ||
236 | /* | |
237 | * A pointer passed in from user mode. This should not | |
238 | * be used for syscall parameters, just declare them | |
239 | * as pointers because the syscall entry code will have | |
240 | * appropriately converted them already. | |
241 | */ | |
242 | ||
243 | static inline void __user *compat_ptr(compat_uptr_t uptr) | |
244 | { | |
9f9c0382 | 245 | return (void __user *)(long)(s32)uptr; |
867e359b CM |
246 | } |
247 | ||
248 | static inline compat_uptr_t ptr_to_compat(void __user *uptr) | |
249 | { | |
250 | return (u32)(unsigned long)uptr; | |
251 | } | |
252 | ||
253 | /* Sign-extend when storing a kernel pointer to a user's ptregs. */ | |
254 | static inline unsigned long ptr_to_compat_reg(void __user *uptr) | |
255 | { | |
0707ad30 | 256 | return (long)(int)(long __force)uptr; |
867e359b CM |
257 | } |
258 | ||
c41d68a5 | 259 | static inline void __user *arch_compat_alloc_user_space(long len) |
867e359b CM |
260 | { |
261 | struct pt_regs *regs = task_pt_regs(current); | |
262 | return (void __user *)regs->sp - len; | |
263 | } | |
264 | ||
265 | static inline int is_compat_task(void) | |
266 | { | |
267 | return current_thread_info()->status & TS_COMPAT; | |
268 | } | |
269 | ||
b3707c7e | 270 | extern int compat_setup_rt_frame(struct ksignal *ksig, sigset_t *set, |
867e359b CM |
271 | struct pt_regs *regs); |
272 | ||
273 | /* Compat syscalls. */ | |
867e359b CM |
274 | struct compat_siginfo; |
275 | struct compat_sigaltstack; | |
6b14e419 | 276 | long compat_sys_rt_sigreturn(void); |
867e359b CM |
277 | long compat_sys_truncate64(char __user *filename, u32 dummy, u32 low, u32 high); |
278 | long compat_sys_ftruncate64(unsigned int fd, u32 dummy, u32 low, u32 high); | |
279 | long compat_sys_pread64(unsigned int fd, char __user *ubuf, size_t count, | |
280 | u32 dummy, u32 low, u32 high); | |
281 | long compat_sys_pwrite64(unsigned int fd, char __user *ubuf, size_t count, | |
282 | u32 dummy, u32 low, u32 high); | |
867e359b CM |
283 | long compat_sys_sync_file_range2(int fd, unsigned int flags, |
284 | u32 offset_lo, u32 offset_hi, | |
285 | u32 nbytes_lo, u32 nbytes_hi); | |
286 | long compat_sys_fallocate(int fd, int mode, | |
287 | u32 offset_lo, u32 offset_hi, | |
288 | u32 len_lo, u32 len_hi); | |
5a114b98 CM |
289 | long compat_sys_llseek(unsigned int fd, unsigned int offset_high, |
290 | unsigned int offset_low, loff_t __user * result, | |
291 | unsigned int origin); | |
867e359b | 292 | |
6b14e419 | 293 | /* Assembly trampoline to avoid clobbering r0. */ |
d929b6ae CM |
294 | long _compat_sys_rt_sigreturn(void); |
295 | ||
867e359b | 296 | #endif /* _ASM_TILE_COMPAT_H */ |