1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_SPARC64_COMPAT_H
3#define _ASM_SPARC64_COMPAT_H
4/*
5 * Architecture specific compatibility types
6 */
7#include <linux/types.h>
8
9#include <asm-generic/compat.h>
10
11#define COMPAT_USER_HZ		100
12#define COMPAT_UTS_MACHINE	"sparc\0\0"
13
14typedef u16		__compat_uid_t;
15typedef u16		__compat_gid_t;
16typedef u32		__compat_uid32_t;
17typedef u32		__compat_gid32_t;
18typedef u16		compat_mode_t;
19typedef u16		compat_dev_t;
20typedef s16		compat_nlink_t;
21typedef u16		compat_ipc_pid_t;
22typedef u32		compat_caddr_t;
23typedef __kernel_fsid_t	compat_fsid_t;
24
25struct compat_stat {
26	compat_dev_t	st_dev;
27	compat_ino_t	st_ino;
28	compat_mode_t	st_mode;
29	compat_nlink_t	st_nlink;
30	__compat_uid_t	st_uid;
31	__compat_gid_t	st_gid;
32	compat_dev_t	st_rdev;
33	compat_off_t	st_size;
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;
42	u32		__unused4[2];
43};
44
45struct compat_stat64 {
46	unsigned long long	st_dev;
47
48	unsigned long long	st_ino;
49
50	unsigned int	st_mode;
51	unsigned int	st_nlink;
52
53	unsigned int	st_uid;
54	unsigned int	st_gid;
55
56	unsigned long long	st_rdev;
57
58	unsigned char	__pad3[8];
59
60	long long	st_size;
61	unsigned int	st_blksize;
62
63	unsigned char	__pad4[8];
64	unsigned int	st_blocks;
65
66	unsigned int	st_atime;
67	unsigned int	st_atime_nsec;
68
69	unsigned int	st_mtime;
70	unsigned int	st_mtime_nsec;
71
72	unsigned int	st_ctime;
73	unsigned int	st_ctime_nsec;
74
75	unsigned int	__unused4;
76	unsigned int	__unused5;
77};
78
79struct compat_flock {
80	short		l_type;
81	short		l_whence;
82	compat_off_t	l_start;
83	compat_off_t	l_len;
84	compat_pid_t	l_pid;
85	short		__unused;
86};
87
88#define F_GETLK64	12
89#define F_SETLK64	13
90#define F_SETLKW64	14
91
92struct compat_flock64 {
93	short		l_type;
94	short		l_whence;
95	compat_loff_t	l_start;
96	compat_loff_t	l_len;
97	compat_pid_t	l_pid;
98	short		__unused;
99};
100
101struct compat_statfs {
102	int		f_type;
103	int		f_bsize;
104	int		f_blocks;
105	int		f_bfree;
106	int		f_bavail;
107	int		f_files;
108	int		f_ffree;
109	compat_fsid_t	f_fsid;
110	int		f_namelen;	/* SunOS ignores this field. */
111	int		f_frsize;
112	int		f_flags;
113	int		f_spare[4];
114};
115
116#define COMPAT_RLIM_INFINITY 0x7fffffff
117
118typedef u32		compat_old_sigset_t;
119
120#define _COMPAT_NSIG		64
121#define _COMPAT_NSIG_BPW	32
122
123typedef u32		compat_sigset_word;
124
125#define COMPAT_OFF_T_MAX	0x7fffffff
126
127#ifdef CONFIG_COMPAT
128static inline void __user *arch_compat_alloc_user_space(long len)
129{
130	struct pt_regs *regs = current_thread_info()->kregs;
131	unsigned long usp = regs->u_regs[UREG_I6];
132
133	if (test_thread_64bit_stack(usp))
134		usp += STACK_BIAS;
135
136	if (test_thread_flag(TIF_32BIT))
137		usp &= 0xffffffffUL;
138
139	usp -= len;
140	usp &= ~0x7UL;
141
142	return (void __user *) usp;
143}
144#endif
145
146struct compat_ipc64_perm {
147	compat_key_t key;
148	__compat_uid32_t uid;
149	__compat_gid32_t gid;
150	__compat_uid32_t cuid;
151	__compat_gid32_t cgid;
152	unsigned short __pad1;
153	compat_mode_t mode;
154	unsigned short __pad2;
155	unsigned short seq;
156	unsigned long __unused1;	/* yes they really are 64bit pads */
157	unsigned long __unused2;
158};
159
160struct 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;
166	u32		sem_nsems;
167	u32		__unused1;
168	u32		__unused2;
169};
170
171struct 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;
186};
187
188struct 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;
202};
203
204#ifdef CONFIG_COMPAT
205static inline int is_compat_task(void)
206{
207	return test_thread_flag(TIF_32BIT);
208}
209
210static inline bool in_compat_syscall(void)
211{
212	/* Vector 0x110 is LINUX_32BIT_SYSCALL_TRAP */
213	return pt_regs_trap_type(current_pt_regs()) == 0x110;
214}
215#define in_compat_syscall in_compat_syscall
216#endif
217
218#endif /* _ASM_SPARC64_COMPAT_H */
219