[mirror_ubuntu-bionic-kernel.git] / include / asm-ppc64 / compat.h

#ifndef _ASM_PPC64_COMPAT_H
#define _ASM_PPC64_COMPAT_H
/*
 * Architecture specific compatibility types
 */
#include <linux/types.h>
#include <linux/sched.h>

#define COMPAT_USER_HZ	100

typedef u32		compat_size_t;
typedef s32		compat_ssize_t;
typedef s32		compat_time_t;
typedef s32		compat_clock_t;
typedef s32		compat_pid_t;
typedef u32		compat_uid_t;
typedef u32		compat_gid_t;
typedef u32		compat_mode_t;
typedef u32		compat_ino_t;
typedef u32		compat_dev_t;
typedef s32		compat_off_t;
typedef s64		compat_loff_t;
typedef s16		compat_nlink_t;
typedef u16		compat_ipc_pid_t;
typedef s32		compat_daddr_t;
typedef u32		compat_caddr_t;
typedef __kernel_fsid_t	compat_fsid_t;
typedef s32		compat_key_t;
typedef s32		compat_timer_t;

typedef s32		compat_int_t;
typedef s32		compat_long_t;
typedef u32		compat_uint_t;
typedef u32		compat_ulong_t;

struct compat_timespec {
	compat_time_t	tv_sec;
	s32		tv_nsec;
};

struct compat_timeval {
	compat_time_t	tv_sec;
	s32		tv_usec;
};

struct compat_stat {
	compat_dev_t	st_dev;
	compat_ino_t	st_ino;
	compat_mode_t	st_mode;
	compat_nlink_t	st_nlink;	
	compat_uid_t	st_uid;
	compat_gid_t	st_gid;
	compat_dev_t	st_rdev;
	compat_off_t	st_size;
	compat_off_t	st_blksize;
	compat_off_t	st_blocks;
	compat_time_t	st_atime;
	u32		st_atime_nsec;
	compat_time_t	st_mtime;
	u32		st_mtime_nsec;
	compat_time_t	st_ctime;
	u32		st_ctime_nsec;
	u32		__unused4[2];
};

struct compat_flock {
	short		l_type;
	short		l_whence;
	compat_off_t	l_start;
	compat_off_t	l_len;
	compat_pid_t	l_pid;
};

#define F_GETLK64	12	/*  using 'struct flock64' */
#define F_SETLK64	13
#define F_SETLKW64	14

struct compat_flock64 {
	short		l_type;
	short		l_whence;
	compat_loff_t	l_start;
	compat_loff_t	l_len;
	compat_pid_t	l_pid;
};

struct compat_statfs {
	int		f_type;
	int		f_bsize;
	int		f_blocks;
	int		f_bfree;
	int		f_bavail;
	int		f_files;
	int		f_ffree;
	compat_fsid_t	f_fsid;
	int		f_namelen;	/* SunOS ignores this field. */
	int		f_frsize;
	int		f_spare[5];
};

#define COMPAT_RLIM_OLD_INFINITY	0x7fffffff
#define COMPAT_RLIM_INFINITY		0xffffffff

typedef u32		compat_old_sigset_t;

#define _COMPAT_NSIG		64
#define _COMPAT_NSIG_BPW	32

typedef u32		compat_sigset_word;

#define COMPAT_OFF_T_MAX	0x7fffffff
#define COMPAT_LOFF_T_MAX	0x7fffffffffffffffL

/*
 * A pointer passed in from user mode. This should not
 * be used for syscall parameters, just declare them
 * as pointers because the syscall entry code will have
 * appropriately comverted them already.
 */
typedef	u32		compat_uptr_t;

static inline void __user *compat_ptr(compat_uptr_t uptr)
{
	return (void __user *)(unsigned long)uptr;
}

static inline void __user *compat_alloc_user_space(long len)
{
	struct pt_regs *regs = current->thread.regs;
	unsigned long usp = regs->gpr[1];

	/*
	 * We cant access below the stack pointer in the 32bit ABI and
	 * can access 288 bytes in the 64bit ABI
	 */
	if (!(test_thread_flag(TIF_32BIT)))
		usp -= 288;

	return (void __user *) (usp - len);
}

/*
 * ipc64_perm is actually 32/64bit clean but since the compat layer refers to
 * it we may as well define it.
 */
struct compat_ipc64_perm {
	compat_key_t key;
	compat_uid_t uid;
	compat_gid_t gid;
	compat_uid_t cuid;
	compat_gid_t cgid;
	compat_mode_t mode;
	unsigned int seq;
	unsigned int __pad2;
	unsigned long __unused1;	/* yes they really are 64bit pads */
	unsigned long __unused2;
};

struct compat_semid64_ds {
	struct compat_ipc64_perm sem_perm;
	unsigned int __unused1;
	compat_time_t sem_otime;
	unsigned int __unused2;
	compat_time_t sem_ctime;
	compat_ulong_t sem_nsems;
	compat_ulong_t __unused3;
	compat_ulong_t __unused4;
};

struct compat_msqid64_ds {
	struct compat_ipc64_perm msg_perm;
	unsigned int __unused1;
	compat_time_t msg_stime;
	unsigned int __unused2;
	compat_time_t msg_rtime;
	unsigned int __unused3;
	compat_time_t msg_ctime;
	compat_ulong_t msg_cbytes;
	compat_ulong_t msg_qnum;
	compat_ulong_t msg_qbytes;
	compat_pid_t msg_lspid;
	compat_pid_t msg_lrpid;
	compat_ulong_t __unused4;
	compat_ulong_t __unused5;
};

struct compat_shmid64_ds {
	struct compat_ipc64_perm shm_perm;
	unsigned int __unused1;
	compat_time_t shm_atime;
	unsigned int __unused2;
	compat_time_t shm_dtime;
	unsigned int __unused3;
	compat_time_t shm_ctime;
	unsigned int __unused4;
	compat_size_t shm_segsz;
	compat_pid_t shm_cpid;
	compat_pid_t shm_lpid;
	compat_ulong_t shm_nattch;
	compat_ulong_t __unused5;
	compat_ulong_t __unused6;
};

#endif /* _ASM_PPC64_COMPAT_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _ASM_PPC64_COMPAT_H
	2	#define _ASM_PPC64_COMPAT_H
	3	/*
	4	* Architecture specific compatibility types
	5	*/
	6	#include <linux/types.h>
	7	#include <linux/sched.h>
	8
	9	#define COMPAT_USER_HZ 100
	10
	11	typedef u32 compat_size_t;
	12	typedef s32 compat_ssize_t;
	13	typedef s32 compat_time_t;
	14	typedef s32 compat_clock_t;
	15	typedef s32 compat_pid_t;
	16	typedef u32 compat_uid_t;
	17	typedef u32 compat_gid_t;
	18	typedef u32 compat_mode_t;
	19	typedef u32 compat_ino_t;
	20	typedef u32 compat_dev_t;
	21	typedef s32 compat_off_t;
	22	typedef s64 compat_loff_t;
	23	typedef s16 compat_nlink_t;
	24	typedef u16 compat_ipc_pid_t;
	25	typedef s32 compat_daddr_t;
	26	typedef u32 compat_caddr_t;
	27	typedef __kernel_fsid_t compat_fsid_t;
	28	typedef s32 compat_key_t;
0d77e5a2	29	typedef s32 compat_timer_t;
1da177e4 LT	30
	31	typedef s32 compat_int_t;
	32	typedef s32 compat_long_t;
	33	typedef u32 compat_uint_t;
	34	typedef u32 compat_ulong_t;
	35
	36	struct compat_timespec {
	37	compat_time_t tv_sec;
	38	s32 tv_nsec;
	39	};
	40
	41	struct compat_timeval {
	42	compat_time_t tv_sec;
	43	s32 tv_usec;
	44	};
	45
	46	struct compat_stat {
	47	compat_dev_t st_dev;
	48	compat_ino_t st_ino;
	49	compat_mode_t st_mode;
	50	compat_nlink_t st_nlink;
	51	compat_uid_t st_uid;
	52	compat_gid_t st_gid;
	53	compat_dev_t st_rdev;
	54	compat_off_t st_size;
	55	compat_off_t st_blksize;
	56	compat_off_t st_blocks;
	57	compat_time_t st_atime;
	58	u32 st_atime_nsec;
	59	compat_time_t st_mtime;
	60	u32 st_mtime_nsec;
	61	compat_time_t st_ctime;
	62	u32 st_ctime_nsec;
	63	u32 __unused4[2];
	64	};
	65
	66	struct compat_flock {
	67	short l_type;
	68	short l_whence;
	69	compat_off_t l_start;
	70	compat_off_t l_len;
	71	compat_pid_t l_pid;
	72	};
	73
	74	#define F_GETLK64 12 /* using 'struct flock64' */
	75	#define F_SETLK64 13
	76	#define F_SETLKW64 14
	77
	78	struct compat_flock64 {
	79	short l_type;
	80	short l_whence;
	81	compat_loff_t l_start;
	82	compat_loff_t l_len;
	83	compat_pid_t l_pid;
	84	};
	85
	86	struct compat_statfs {
	87	int f_type;
	88	int f_bsize;
	89	int f_blocks;
	90	int f_bfree;
	91	int f_bavail;
	92	int f_files;
	93	int f_ffree;
94	compat_fsid_t f_fsid;
95	int f_namelen; /* SunOS ignores this field. */
96	int f_frsize;
97	int f_spare[5];
98	};
99
100	#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
101	#define COMPAT_RLIM_INFINITY 0xffffffff
102
103	typedef u32 compat_old_sigset_t;
104
105	#define _COMPAT_NSIG 64
106	#define _COMPAT_NSIG_BPW 32
107
108	typedef u32 compat_sigset_word;
109
110	#define COMPAT_OFF_T_MAX 0x7fffffff
111	#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
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
117	* appropriately comverted them already.
118	*/
119	typedef u32 compat_uptr_t;
120
121	static inline void __user *compat_ptr(compat_uptr_t uptr)
122	{
123	return (void __user *)(unsigned long)uptr;
124	}
125
126	static inline void __user *compat_alloc_user_space(long len)
127	{
128	struct pt_regs *regs = current->thread.regs;
129	unsigned long usp = regs->gpr[1];
130
131	/*
132	* We cant access below the stack pointer in the 32bit ABI and
133	* can access 288 bytes in the 64bit ABI
134	*/
135	if (!(test_thread_flag(TIF_32BIT)))
136	usp -= 288;
137
138	return (void __user *) (usp - len);
139	}
140
141	/*
142	* ipc64_perm is actually 32/64bit clean but since the compat layer refers to
143	* it we may as well define it.
144	*/
145	struct compat_ipc64_perm {
146	compat_key_t key;
147	compat_uid_t uid;
148	compat_gid_t gid;
149	compat_uid_t cuid;
150	compat_gid_t cgid;
151	compat_mode_t mode;
152	unsigned int seq;
153	unsigned int __pad2;
154	unsigned long __unused1; /* yes they really are 64bit pads */
155	unsigned long __unused2;
156	};
157
158	struct compat_semid64_ds {
159	struct compat_ipc64_perm sem_perm;
160	unsigned int __unused1;
161	compat_time_t sem_otime;
162	unsigned int __unused2;
163	compat_time_t sem_ctime;
164	compat_ulong_t sem_nsems;
165	compat_ulong_t __unused3;
166	compat_ulong_t __unused4;
167	};
168
169	struct compat_msqid64_ds {
170	struct compat_ipc64_perm msg_perm;
171	unsigned int __unused1;
172	compat_time_t msg_stime;
173	unsigned int __unused2;
174	compat_time_t msg_rtime;
175	unsigned int __unused3;
176	compat_time_t msg_ctime;
177	compat_ulong_t msg_cbytes;
178	compat_ulong_t msg_qnum;
179	compat_ulong_t msg_qbytes;
180	compat_pid_t msg_lspid;
181	compat_pid_t msg_lrpid;
182	compat_ulong_t __unused4;
183	compat_ulong_t __unused5;
184	};
185
186	struct compat_shmid64_ds {
187	struct compat_ipc64_perm shm_perm;
188	unsigned int __unused1;
189	compat_time_t shm_atime;
190	unsigned int __unused2;
191	compat_time_t shm_dtime;
192	unsigned int __unused3;
193	compat_time_t shm_ctime;
194	unsigned int __unused4;
195	compat_size_t shm_segsz;
196	compat_pid_t shm_cpid;
197	compat_pid_t shm_lpid;
198	compat_ulong_t shm_nattch;
199	compat_ulong_t __unused5;
200	compat_ulong_t __unused6;
201	};
202
203	#endif /* _ASM_PPC64_COMPAT_H */