[deliverable/linux.git] / arch / s390 / include / asm / compat.h

#ifndef _ASM_S390X_COMPAT_H
#define _ASM_S390X_COMPAT_H
/*
 * Architecture specific compatibility types
 */
#include <linux/types.h>
#include <linux/sched.h>
#include <linux/thread_info.h>

#define PSW32_MASK_PER		0x40000000UL
#define PSW32_MASK_DAT		0x04000000UL
#define PSW32_MASK_IO		0x02000000UL
#define PSW32_MASK_EXT		0x01000000UL
#define PSW32_MASK_KEY		0x00F00000UL
#define PSW32_MASK_MCHECK	0x00040000UL
#define PSW32_MASK_WAIT		0x00020000UL
#define PSW32_MASK_PSTATE	0x00010000UL
#define PSW32_MASK_ASC		0x0000C000UL
#define PSW32_MASK_CC		0x00003000UL
#define PSW32_MASK_PM		0x00000f00UL

#define PSW32_ADDR_AMODE31	0x80000000UL
#define PSW32_ADDR_INSN		0x7FFFFFFFUL

#define PSW32_BASE_BITS		0x00080000UL

#define PSW32_ASC_PRIMARY	0x00000000UL
#define PSW32_ASC_ACCREG	0x00004000UL
#define PSW32_ASC_SECONDARY	0x00008000UL
#define PSW32_ASC_HOME		0x0000C000UL

#define PSW32_MASK_MERGE(CURRENT,NEW) \
	(((CURRENT) & ~(PSW32_MASK_CC|PSW32_MASK_PM)) | \
	 ((NEW) & (PSW32_MASK_CC|PSW32_MASK_PM)))

extern long psw32_user_bits;

#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 u16		__compat_uid_t;
typedef u16		__compat_gid_t;
typedef u32		__compat_uid32_t;
typedef u32		__compat_gid32_t;
typedef u16		compat_mode_t;
typedef u32		compat_ino_t;
typedef u16		compat_dev_t;
typedef s32		compat_off_t;
typedef s64		compat_loff_t;
typedef u16		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 s64		compat_s64;
typedef u32		compat_uint_t;
typedef u32		compat_ulong_t;
typedef u64		compat_u64;

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;
	u16		__pad1;
	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;
	u16		__pad2;
	u32		st_size;
	u32		st_blksize;
	u32		st_blocks;
	u32		st_atime;
	u32		st_atime_nsec;
	u32		st_mtime;
	u32		st_mtime_nsec;
	u32		st_ctime;
	u32		st_ctime_nsec;
	u32		__unused4;
	u32		__unused5;
};

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
#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 {
	s32		f_type;
	s32		f_bsize;
	s32		f_blocks;
	s32		f_bfree;
	s32		f_bavail;
	s32		f_files;
	s32		f_ffree;
	compat_fsid_t	f_fsid;
	s32		f_namelen;
	s32		f_frsize;
	s32		f_spare[6];
};

#define COMPAT_RLIM_OLD_INFINITY	0x7fffffff
#define COMPAT_RLIM_INFINITY		0xffffffff

typedef u32		compat_old_sigset_t;	/* at least 32 bits */

#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 converted them already.
 */
typedef	u32		compat_uptr_t;

static inline void __user *compat_ptr(compat_uptr_t uptr)
{
	return (void __user *)(unsigned long)(uptr & 0x7fffffffUL);
}

static inline compat_uptr_t ptr_to_compat(void __user *uptr)
{
	return (u32)(unsigned long)uptr;
}

#ifdef CONFIG_COMPAT

static inline int is_compat_task(void)
{
	return test_thread_flag(TIF_31BIT);
}

#else

static inline int is_compat_task(void)
{
	return 0;
}

#endif

static inline void __user *compat_alloc_user_space(long len)
{
	unsigned long stack;

	stack = KSTK_ESP(current);
	if (is_compat_task())
		stack &= 0x7fffffffUL;
	return (void __user *) (stack - len);
}

struct compat_ipc64_perm {
	compat_key_t key;
	__compat_uid32_t uid;
	__compat_gid32_t gid;
	__compat_uid32_t cuid;
	__compat_gid32_t cgid;
	compat_mode_t mode;
	unsigned short __pad1;
	unsigned short seq;
	unsigned short __pad2;
	unsigned int __unused1;
	unsigned int __unused2;
};

struct compat_semid64_ds {
	struct compat_ipc64_perm sem_perm;
	compat_time_t  sem_otime;
	compat_ulong_t __pad1;
	compat_time_t  sem_ctime;
	compat_ulong_t __pad2;
	compat_ulong_t sem_nsems;
	compat_ulong_t __unused1;
	compat_ulong_t __unused2;
};

struct compat_msqid64_ds {
	struct compat_ipc64_perm msg_perm;
	compat_time_t   msg_stime;
	compat_ulong_t __pad1;
	compat_time_t   msg_rtime;
	compat_ulong_t __pad2;
	compat_time_t   msg_ctime;
	compat_ulong_t __pad3;
	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 __unused1;
	compat_ulong_t __unused2;
};

struct compat_shmid64_ds {
	struct compat_ipc64_perm shm_perm;
	compat_size_t  shm_segsz;
	compat_time_t  shm_atime;
	compat_ulong_t __pad1;
	compat_time_t  shm_dtime;
	compat_ulong_t __pad2;
	compat_time_t  shm_ctime;
	compat_ulong_t __pad3;
	compat_pid_t   shm_cpid;
	compat_pid_t   shm_lpid;
	compat_ulong_t shm_nattch;
	compat_ulong_t __unused1;
	compat_ulong_t __unused2;
};
#endif /* _ASM_S390X_COMPAT_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _ASM_S390X_COMPAT_H
	2	#define _ASM_S390X_COMPAT_H
	3	/*
	4	* Architecture specific compatibility types
	5	*/
	6	#include <linux/types.h>
	7	#include <linux/sched.h>
7757591a	8	#include <linux/thread_info.h>
1da177e4	9
c1821c2e GS	10	#define PSW32_MASK_PER 0x40000000UL
	11	#define PSW32_MASK_DAT 0x04000000UL
	12	#define PSW32_MASK_IO 0x02000000UL
	13	#define PSW32_MASK_EXT 0x01000000UL
	14	#define PSW32_MASK_KEY 0x00F00000UL
	15	#define PSW32_MASK_MCHECK 0x00040000UL
	16	#define PSW32_MASK_WAIT 0x00020000UL
	17	#define PSW32_MASK_PSTATE 0x00010000UL
	18	#define PSW32_MASK_ASC 0x0000C000UL
	19	#define PSW32_MASK_CC 0x00003000UL
	20	#define PSW32_MASK_PM 0x00000f00UL
	21
	22	#define PSW32_ADDR_AMODE31 0x80000000UL
	23	#define PSW32_ADDR_INSN 0x7FFFFFFFUL
	24
	25	#define PSW32_BASE_BITS 0x00080000UL
	26
	27	#define PSW32_ASC_PRIMARY 0x00000000UL
	28	#define PSW32_ASC_ACCREG 0x00004000UL
	29	#define PSW32_ASC_SECONDARY 0x00008000UL
	30	#define PSW32_ASC_HOME 0x0000C000UL
	31
	32	#define PSW32_MASK_MERGE(CURRENT,NEW) \
	33	(((CURRENT) & ~(PSW32_MASK_CC\|PSW32_MASK_PM)) \| \
	34	((NEW) & (PSW32_MASK_CC\|PSW32_MASK_PM)))
	35
	36	extern long psw32_user_bits;
	37
1da177e4 LT	38	#define COMPAT_USER_HZ 100
	39
	40	typedef u32 compat_size_t;
	41	typedef s32 compat_ssize_t;
	42	typedef s32 compat_time_t;
	43	typedef s32 compat_clock_t;
	44	typedef s32 compat_pid_t;
202e5979 SR	45	typedef u16 __compat_uid_t;
	46	typedef u16 __compat_gid_t;
	47	typedef u32 __compat_uid32_t;
	48	typedef u32 __compat_gid32_t;
1da177e4 LT	49	typedef u16 compat_mode_t;
	50	typedef u32 compat_ino_t;
	51	typedef u16 compat_dev_t;
	52	typedef s32 compat_off_t;
	53	typedef s64 compat_loff_t;
	54	typedef u16 compat_nlink_t;
	55	typedef u16 compat_ipc_pid_t;
	56	typedef s32 compat_daddr_t;
	57	typedef u32 compat_caddr_t;
	58	typedef __kernel_fsid_t compat_fsid_t;
	59	typedef s32 compat_key_t;
	60	typedef s32 compat_timer_t;
	61
	62	typedef s32 compat_int_t;
	63	typedef s32 compat_long_t;
4b777587	64	typedef s64 compat_s64;
1da177e4 LT	65	typedef u32 compat_uint_t;
1da177e4 LT	66	typedef u32 compat_ulong_t;
4b777587	67	typedef u64 compat_u64;
1da177e4 LT	68
	69	struct compat_timespec {
	70	compat_time_t tv_sec;
	71	s32 tv_nsec;
	72	};
	73
	74	struct compat_timeval {
	75	compat_time_t tv_sec;
	76	s32 tv_usec;
	77	};
	78
	79	struct compat_stat {
	80	compat_dev_t st_dev;
	81	u16 __pad1;
	82	compat_ino_t st_ino;
	83	compat_mode_t st_mode;
	84	compat_nlink_t st_nlink;
202e5979 SR	85	__compat_uid_t st_uid;
202e5979 SR	86	__compat_gid_t st_gid;
1da177e4 LT	87	compat_dev_t st_rdev;
	88	u16 __pad2;
	89	u32 st_size;
	90	u32 st_blksize;
	91	u32 st_blocks;
	92	u32 st_atime;
	93	u32 st_atime_nsec;
	94	u32 st_mtime;
	95	u32 st_mtime_nsec;
	96	u32 st_ctime;
	97	u32 st_ctime_nsec;
	98	u32 __unused4;
	99	u32 __unused5;
	100	};
	101
	102	struct compat_flock {
	103	short l_type;
	104	short l_whence;
	105	compat_off_t l_start;
	106	compat_off_t l_len;
	107	compat_pid_t l_pid;
	108	};
	109
	110	#define F_GETLK64 12
	111	#define F_SETLK64 13
	112	#define F_SETLKW64 14
	113
	114	struct compat_flock64 {
	115	short l_type;
	116	short l_whence;
	117	compat_loff_t l_start;
	118	compat_loff_t l_len;
	119	compat_pid_t l_pid;
	120	};
	121
	122	struct compat_statfs {
	123	s32 f_type;
	124	s32 f_bsize;
	125	s32 f_blocks;
	126	s32 f_bfree;
	127	s32 f_bavail;
	128	s32 f_files;
	129	s32 f_ffree;
	130	compat_fsid_t f_fsid;
	131	s32 f_namelen;
	132	s32 f_frsize;
	133	s32 f_spare[6];
	134	};
	135
	136	#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
	137	#define COMPAT_RLIM_INFINITY 0xffffffff
	138
	139	typedef u32 compat_old_sigset_t; /* at least 32 bits */
	140
	141	#define _COMPAT_NSIG 64
	142	#define _COMPAT_NSIG_BPW 32
	143
	144	typedef u32 compat_sigset_word;
	145
	146	#define COMPAT_OFF_T_MAX 0x7fffffff
	147	#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
	148
	149	/*
	150	* A pointer passed in from user mode. This should not
151	* be used for syscall parameters, just declare them
152	* as pointers because the syscall entry code will have
8b3de0df	153	* appropriately converted them already.
1da177e4 LT	154	*/
	155	typedef u32 compat_uptr_t;
	156
	157	static inline void __user *compat_ptr(compat_uptr_t uptr)
	158	{
	159	return (void __user *)(unsigned long)(uptr & 0x7fffffffUL);
	160	}
	161
f267fa9f IM	162	static inline compat_uptr_t ptr_to_compat(void __user *uptr)
	163	{
	164	return (u32)(unsigned long)uptr;
	165	}
	166
7757591a HC	167	#ifdef CONFIG_COMPAT
	168
	169	static inline int is_compat_task(void)
	170	{
	171	return test_thread_flag(TIF_31BIT);
	172	}
	173
	174	#else
	175
	176	static inline int is_compat_task(void)
	177	{
	178	return 0;
	179	}
	180
	181	#endif
	182
1da177e4 LT	183	static inline void __user *compat_alloc_user_space(long len)
	184	{
	185	unsigned long stack;
	186
	187	stack = KSTK_ESP(current);
7757591a	188	if (is_compat_task())
1da177e4 LT	189	stack &= 0x7fffffffUL;
	190	return (void __user *) (stack - len);
	191	}
	192
	193	struct compat_ipc64_perm {
	194	compat_key_t key;
202e5979 SR	195	__compat_uid32_t uid;
	196	__compat_gid32_t gid;
	197	__compat_uid32_t cuid;
	198	__compat_gid32_t cgid;
1da177e4 LT	199	compat_mode_t mode;
	200	unsigned short __pad1;
	201	unsigned short seq;
	202	unsigned short __pad2;
	203	unsigned int __unused1;
	204	unsigned int __unused2;
	205	};
	206
	207	struct compat_semid64_ds {
	208	struct compat_ipc64_perm sem_perm;
	209	compat_time_t sem_otime;
	210	compat_ulong_t __pad1;
	211	compat_time_t sem_ctime;
	212	compat_ulong_t __pad2;
	213	compat_ulong_t sem_nsems;
	214	compat_ulong_t __unused1;
	215	compat_ulong_t __unused2;
	216	};
	217
	218	struct compat_msqid64_ds {
	219	struct compat_ipc64_perm msg_perm;
	220	compat_time_t msg_stime;
	221	compat_ulong_t __pad1;
	222	compat_time_t msg_rtime;
	223	compat_ulong_t __pad2;
	224	compat_time_t msg_ctime;
	225	compat_ulong_t __pad3;
	226	compat_ulong_t msg_cbytes;
	227	compat_ulong_t msg_qnum;
	228	compat_ulong_t msg_qbytes;
	229	compat_pid_t msg_lspid;
	230	compat_pid_t msg_lrpid;
	231	compat_ulong_t __unused1;
	232	compat_ulong_t __unused2;
	233	};
	234
	235	struct compat_shmid64_ds {
	236	struct compat_ipc64_perm shm_perm;
	237	compat_size_t shm_segsz;
	238	compat_time_t shm_atime;
	239	compat_ulong_t __pad1;
	240	compat_time_t shm_dtime;
	241	compat_ulong_t __pad2;
	242	compat_time_t shm_ctime;
	243	compat_ulong_t __pad3;
	244	compat_pid_t shm_cpid;
	245	compat_pid_t shm_lpid;
	246	compat_ulong_t shm_nattch;
	247	compat_ulong_t __unused1;
	248	compat_ulong_t __unused2;
	249	};
	250	#endif /* _ASM_S390X_COMPAT_H */