1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_SPARC64_COMPAT_H
3 #define _ASM_SPARC64_COMPAT_H
5 * Architecture specific compatibility types
7 #include <linux/types.h>
9 #define COMPAT_USER_HZ 100
10 #define COMPAT_UTS_MACHINE "sparc\0\0"
12 typedef u32 compat_size_t;
13 typedef s32 compat_ssize_t;
14 typedef s32 compat_clock_t;
15 typedef s32 compat_pid_t;
16 typedef u16 __compat_uid_t;
17 typedef u16 __compat_gid_t;
18 typedef u32 __compat_uid32_t;
19 typedef u32 __compat_gid32_t;
20 typedef u16 compat_mode_t;
21 typedef u32 compat_ino_t;
22 typedef u16 compat_dev_t;
23 typedef s32 compat_off_t;
24 typedef s64 compat_loff_t;
25 typedef s16 compat_nlink_t;
26 typedef u16 compat_ipc_pid_t;
27 typedef s32 compat_daddr_t;
28 typedef u32 compat_caddr_t;
29 typedef __kernel_fsid_t compat_fsid_t;
30 typedef s32 compat_key_t;
31 typedef s32 compat_timer_t;
33 typedef s32 compat_int_t;
34 typedef s32 compat_long_t;
35 typedef s64 compat_s64;
36 typedef u32 compat_uint_t;
37 typedef u32 compat_ulong_t;
38 typedef u64 compat_u64;
39 typedef u32 compat_uptr_t;
44 compat_mode_t st_mode;
45 compat_nlink_t st_nlink;
46 __compat_uid_t st_uid;
47 __compat_gid_t st_gid;
50 compat_time_t st_atime;
51 compat_ulong_t st_atime_nsec;
52 compat_time_t st_mtime;
53 compat_ulong_t st_mtime_nsec;
54 compat_time_t st_ctime;
55 compat_ulong_t st_ctime_nsec;
56 compat_off_t st_blksize;
57 compat_off_t st_blocks;
61 struct compat_stat64 {
62 unsigned long long st_dev;
64 unsigned long long st_ino;
67 unsigned int st_nlink;
72 unsigned long long st_rdev;
74 unsigned char __pad3[8];
77 unsigned int st_blksize;
79 unsigned char __pad4[8];
80 unsigned int st_blocks;
82 unsigned int st_atime;
83 unsigned int st_atime_nsec;
85 unsigned int st_mtime;
86 unsigned int st_mtime_nsec;
88 unsigned int st_ctime;
89 unsigned int st_ctime_nsec;
91 unsigned int __unused4;
92 unsigned int __unused5;
106 #define F_SETLKW64 14
108 struct compat_flock64 {
111 compat_loff_t l_start;
117 struct compat_statfs {
125 compat_fsid_t f_fsid;
126 int f_namelen; /* SunOS ignores this field. */
132 #define COMPAT_RLIM_INFINITY 0x7fffffff
134 typedef u32 compat_old_sigset_t;
136 #define _COMPAT_NSIG 64
137 #define _COMPAT_NSIG_BPW 32
139 typedef u32 compat_sigset_word;
141 #define COMPAT_OFF_T_MAX 0x7fffffff
144 * A pointer passed in from user mode. This should not
145 * be used for syscall parameters, just declare them
146 * as pointers because the syscall entry code will have
147 * appropriately converted them already.
150 static inline void __user *compat_ptr(compat_uptr_t uptr)
152 return (void __user *)(unsigned long)uptr;
155 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
157 return (u32)(unsigned long)uptr;
161 static inline void __user *arch_compat_alloc_user_space(long len)
163 struct pt_regs *regs = current_thread_info()->kregs;
164 unsigned long usp = regs->u_regs[UREG_I6];
166 if (test_thread_64bit_stack(usp))
169 if (test_thread_flag(TIF_32BIT))
175 return (void __user *) usp;
179 struct compat_ipc64_perm {
181 __compat_uid32_t uid;
182 __compat_gid32_t gid;
183 __compat_uid32_t cuid;
184 __compat_gid32_t cgid;
185 unsigned short __pad1;
187 unsigned short __pad2;
189 unsigned long __unused1; /* yes they really are 64bit pads */
190 unsigned long __unused2;
193 struct compat_semid64_ds {
194 struct compat_ipc64_perm sem_perm;
195 unsigned int sem_otime_high;
196 unsigned int sem_otime;
197 unsigned int sem_ctime_high;
198 unsigned int sem_ctime;
204 struct compat_msqid64_ds {
205 struct compat_ipc64_perm msg_perm;
206 unsigned int msg_stime_high;
207 unsigned int msg_stime;
208 unsigned int msg_rtime_high;
209 unsigned int msg_rtime;
210 unsigned int msg_ctime_high;
211 unsigned int msg_ctime;
212 unsigned int msg_cbytes;
213 unsigned int msg_qnum;
214 unsigned int msg_qbytes;
215 compat_pid_t msg_lspid;
216 compat_pid_t msg_lrpid;
217 unsigned int __unused1;
218 unsigned int __unused2;
221 struct compat_shmid64_ds {
222 struct compat_ipc64_perm shm_perm;
223 unsigned int shm_atime_high;
224 unsigned int shm_atime;
225 unsigned int shm_dtime_high;
226 unsigned int shm_dtime;
227 unsigned int shm_ctime_high;
228 unsigned int shm_ctime;
229 compat_size_t shm_segsz;
230 compat_pid_t shm_cpid;
231 compat_pid_t shm_lpid;
232 unsigned int shm_nattch;
233 unsigned int __unused1;
234 unsigned int __unused2;
238 static inline int is_compat_task(void)
240 return test_thread_flag(TIF_32BIT);
243 static inline bool in_compat_syscall(void)
245 /* Vector 0x110 is LINUX_32BIT_SYSCALL_TRAP */
246 return pt_regs_trap_type(current_pt_regs()) == 0x110;
248 #define in_compat_syscall in_compat_syscall
251 #endif /* _ASM_SPARC64_COMPAT_H */