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 #include <asm-generic/compat.h>
11 #define COMPAT_USER_HZ 100
12 #define COMPAT_UTS_MACHINE "sparc\0\0"
14 typedef u16 __compat_uid_t;
15 typedef u16 __compat_gid_t;
16 typedef u32 __compat_uid32_t;
17 typedef u32 __compat_gid32_t;
18 typedef u16 compat_mode_t;
19 typedef u16 compat_dev_t;
20 typedef s16 compat_nlink_t;
21 typedef u16 compat_ipc_pid_t;
22 typedef u32 compat_caddr_t;
23 typedef __kernel_fsid_t compat_fsid_t;
28 compat_mode_t st_mode;
29 compat_nlink_t st_nlink;
30 __compat_uid_t st_uid;
31 __compat_gid_t st_gid;
34 old_time32_t st_atime;
35 compat_ulong_t st_atime_nsec;
36 old_time32_t st_mtime;
37 compat_ulong_t st_mtime_nsec;
38 old_time32_t st_ctime;
39 compat_ulong_t st_ctime_nsec;
40 compat_off_t st_blksize;
41 compat_off_t st_blocks;
45 struct compat_stat64 {
46 unsigned long long st_dev;
48 unsigned long long st_ino;
51 unsigned int st_nlink;
56 unsigned long long st_rdev;
58 unsigned char __pad3[8];
61 unsigned int st_blksize;
63 unsigned char __pad4[8];
64 unsigned int st_blocks;
66 unsigned int st_atime;
67 unsigned int st_atime_nsec;
69 unsigned int st_mtime;
70 unsigned int st_mtime_nsec;
72 unsigned int st_ctime;
73 unsigned int st_ctime_nsec;
75 unsigned int __unused4;
76 unsigned int __unused5;
92 struct compat_flock64 {
95 compat_loff_t l_start;
101 struct compat_statfs {
109 compat_fsid_t f_fsid;
110 int f_namelen; /* SunOS ignores this field. */
116 #define COMPAT_RLIM_INFINITY 0x7fffffff
118 typedef u32 compat_old_sigset_t;
120 #define _COMPAT_NSIG 64
121 #define _COMPAT_NSIG_BPW 32
123 typedef u32 compat_sigset_word;
125 #define COMPAT_OFF_T_MAX 0x7fffffff
128 static inline void __user *arch_compat_alloc_user_space(long len)
130 struct pt_regs *regs = current_thread_info()->kregs;
131 unsigned long usp = regs->u_regs[UREG_I6];
133 if (test_thread_64bit_stack(usp))
136 if (test_thread_flag(TIF_32BIT))
142 return (void __user *) usp;
146 struct compat_ipc64_perm {
148 __compat_uid32_t uid;
149 __compat_gid32_t gid;
150 __compat_uid32_t cuid;
151 __compat_gid32_t cgid;
152 unsigned short __pad1;
154 unsigned short __pad2;
156 unsigned long __unused1; /* yes they really are 64bit pads */
157 unsigned long __unused2;
160 struct compat_semid64_ds {
161 struct compat_ipc64_perm sem_perm;
162 unsigned int sem_otime_high;
163 unsigned int sem_otime;
164 unsigned int sem_ctime_high;
165 unsigned int sem_ctime;
171 struct compat_msqid64_ds {
172 struct compat_ipc64_perm msg_perm;
173 unsigned int msg_stime_high;
174 unsigned int msg_stime;
175 unsigned int msg_rtime_high;
176 unsigned int msg_rtime;
177 unsigned int msg_ctime_high;
178 unsigned int msg_ctime;
179 unsigned int msg_cbytes;
180 unsigned int msg_qnum;
181 unsigned int msg_qbytes;
182 compat_pid_t msg_lspid;
183 compat_pid_t msg_lrpid;
184 unsigned int __unused1;
185 unsigned int __unused2;
188 struct compat_shmid64_ds {
189 struct compat_ipc64_perm shm_perm;
190 unsigned int shm_atime_high;
191 unsigned int shm_atime;
192 unsigned int shm_dtime_high;
193 unsigned int shm_dtime;
194 unsigned int shm_ctime_high;
195 unsigned int shm_ctime;
196 compat_size_t shm_segsz;
197 compat_pid_t shm_cpid;
198 compat_pid_t shm_lpid;
199 unsigned int shm_nattch;
200 unsigned int __unused1;
201 unsigned int __unused2;
205 static inline int is_compat_task(void)
207 return test_thread_flag(TIF_32BIT);
210 static inline bool in_compat_syscall(void)
212 /* Vector 0x110 is LINUX_32BIT_SYSCALL_TRAP */
213 return pt_regs_trap_type(current_pt_regs()) == 0x110;
215 #define in_compat_syscall in_compat_syscall
218 #endif /* _ASM_SPARC64_COMPAT_H */