[net-next-2.6.git] / arch / tile / include / asm / compat.h

/*
 * Copyright 2010 Tilera Corporation. All Rights Reserved.
 *
 *   This program is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU General Public License
 *   as published by the Free Software Foundation, version 2.
 *
 *   This program is distributed in the hope that it will be useful, but
 *   WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
 *   NON INFRINGEMENT.  See the GNU General Public License for
 *   more details.
 */

#ifndef _ASM_TILE_COMPAT_H
#define _ASM_TILE_COMPAT_H

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

#define COMPAT_USER_HZ	100

/* "long" and pointer-based types are different. */
typedef s32		compat_long_t;
typedef u32		compat_ulong_t;
typedef u32		compat_size_t;
typedef s32		compat_ssize_t;
typedef s32		compat_off_t;
typedef s32		compat_time_t;
typedef s32		compat_clock_t;
typedef u32		compat_ino_t;
typedef u32		compat_caddr_t;
typedef	u32		compat_uptr_t;

/* Many types are "int" or otherwise the same. */
typedef __kernel_pid_t compat_pid_t;
typedef __kernel_uid_t __compat_uid_t;
typedef __kernel_gid_t __compat_gid_t;
typedef __kernel_uid32_t __compat_uid32_t;
typedef __kernel_uid32_t __compat_gid32_t;
typedef __kernel_mode_t compat_mode_t;
typedef __kernel_dev_t compat_dev_t;
typedef __kernel_loff_t compat_loff_t;
typedef __kernel_nlink_t compat_nlink_t;
typedef __kernel_ipc_pid_t compat_ipc_pid_t;
typedef __kernel_daddr_t compat_daddr_t;
typedef __kernel_fsid_t	compat_fsid_t;
typedef __kernel_timer_t compat_timer_t;
typedef __kernel_key_t compat_key_t;
typedef int compat_int_t;
typedef s64 compat_s64;
typedef uint compat_uint_t;
typedef u64 compat_u64;

/* We use the same register dump format in 32-bit images. */
typedef unsigned long compat_elf_greg_t;
#define COMPAT_ELF_NGREG (sizeof(struct pt_regs) / sizeof(compat_elf_greg_t))
typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];

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 {
	unsigned int	st_dev;
	unsigned int	st_ino;
	unsigned int	st_mode;
	unsigned int	st_nlink;
	unsigned int	st_uid;
	unsigned int	st_gid;
	unsigned int	st_rdev;
	unsigned int    __pad1;
	int		st_size;
	int		st_blksize;
	int		__pad2;
	int		st_blocks;
	int		st_atime;
	unsigned int	st_atime_nsec;
	int		st_mtime;
	unsigned int	st_mtime_nsec;
	int		st_ctime;
	unsigned int	st_ctime_nsec;
	unsigned int	__unused[2];
};

struct compat_stat64 {
	unsigned long	st_dev;
	unsigned long	st_ino;
	unsigned int	st_mode;
	unsigned int	st_nlink;
	unsigned int	st_uid;
	unsigned int	st_gid;
	unsigned long	st_rdev;
	long		st_size;
	unsigned int	st_blksize;
	unsigned long	st_blocks __attribute__((packed));
	unsigned int	st_atime;
	unsigned int	st_atime_nsec;
	unsigned int	st_mtime;
	unsigned int	st_mtime_nsec;
	unsigned int	st_ctime;
	unsigned int	st_ctime_nsec;
	unsigned int	__unused8;
};

#define compat_statfs statfs

struct compat_sysctl {
	unsigned int	name;
	int		nlen;
	unsigned int	oldval;
	unsigned int	oldlenp;
	unsigned int	newval;
	unsigned int	newlen;
	unsigned int	__unused[4];
};


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;
};

#define COMPAT_RLIM_INFINITY		0xffffffff

#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

struct compat_ipc64_perm {
	compat_key_t key;
	__compat_uid32_t uid;
	__compat_gid32_t gid;
	__compat_uid32_t cuid;
	__compat_gid32_t cgid;
	unsigned short mode;
	unsigned short __pad1;
	unsigned short seq;
	unsigned short __pad2;
	compat_ulong_t unused1;
	compat_ulong_t unused2;
};

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

struct compat_msqid64_ds {
	struct compat_ipc64_perm msg_perm;
	compat_time_t  msg_stime;
	compat_ulong_t __unused1;
	compat_time_t  msg_rtime;
	compat_ulong_t __unused2;
	compat_time_t  msg_ctime;
	compat_ulong_t __unused3;
	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;
	compat_size_t  shm_segsz;
	compat_time_t  shm_atime;
	compat_ulong_t __unused1;
	compat_time_t  shm_dtime;
	compat_ulong_t __unused2;
	compat_time_t  shm_ctime;
	compat_ulong_t __unused3;
	compat_pid_t   shm_cpid;
	compat_pid_t   shm_lpid;
	compat_ulong_t shm_nattch;
	compat_ulong_t __unused4;
	compat_ulong_t __unused5;
};

/*
 * 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.
 */

static inline void __user *compat_ptr(compat_uptr_t uptr)
{
	return (void __user *)(long)(s32)uptr;
}

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

/* Sign-extend when storing a kernel pointer to a user's ptregs. */
static inline unsigned long ptr_to_compat_reg(void __user *uptr)
{
	return (long)(int)(long)uptr;
}

static inline void __user *compat_alloc_user_space(long len)
{
	struct pt_regs *regs = task_pt_regs(current);
	return (void __user *)regs->sp - len;
}

static inline int is_compat_task(void)
{
	return current_thread_info()->status & TS_COMPAT;
}

extern int compat_setup_rt_frame(int sig, struct k_sigaction *ka,
				 siginfo_t *info, sigset_t *set,
				 struct pt_regs *regs);

/* Compat syscalls. */
struct compat_sigaction;
struct compat_siginfo;
struct compat_sigaltstack;
long compat_sys_execve(char __user *path, compat_uptr_t __user *argv,
		       compat_uptr_t __user *envp);
long compat_sys_rt_sigaction(int sig, struct compat_sigaction __user *act,
			     struct compat_sigaction __user *oact,
			     size_t sigsetsize);
long compat_sys_rt_sigqueueinfo(int pid, int sig,
				struct compat_siginfo __user *uinfo);
long compat_sys_rt_sigreturn(void);
long compat_sys_sigaltstack(const struct compat_sigaltstack __user *uss_ptr,
			    struct compat_sigaltstack __user *uoss_ptr);
long compat_sys_truncate64(char __user *filename, u32 dummy, u32 low, u32 high);
long compat_sys_ftruncate64(unsigned int fd, u32 dummy, u32 low, u32 high);
long compat_sys_pread64(unsigned int fd, char __user *ubuf, size_t count,
			u32 dummy, u32 low, u32 high);
long compat_sys_pwrite64(unsigned int fd, char __user *ubuf, size_t count,
			 u32 dummy, u32 low, u32 high);
long compat_sys_lookup_dcookie(u32 low, u32 high, char __user *buf, size_t len);
long compat_sys_sync_file_range2(int fd, unsigned int flags,
				 u32 offset_lo, u32 offset_hi,
				 u32 nbytes_lo, u32 nbytes_hi);
long compat_sys_fallocate(int fd, int mode,
			  u32 offset_lo, u32 offset_hi,
			  u32 len_lo, u32 len_hi);
long compat_sys_stat64(char __user *filename,
		       struct compat_stat64 __user *statbuf);
long compat_sys_lstat64(char __user *filename,
			struct compat_stat64 __user *statbuf);
long compat_sys_fstat64(unsigned int fd, struct compat_stat64 __user *statbuf);
long compat_sys_fstatat64(int dfd, char __user *filename,
			  struct compat_stat64 __user *statbuf, int flag);
long compat_sys_sched_rr_get_interval(compat_pid_t pid,
				      struct compat_timespec __user *interval);
ssize_t compat_sys_sendfile(int out_fd, int in_fd, compat_off_t __user *offset,
			    size_t count);

/* Versions of compat functions that differ from generic Linux. */
struct compat_msgbuf;
long tile_compat_sys_msgsnd(int msqid,
			    struct compat_msgbuf __user *msgp,
			    size_t msgsz, int msgflg);
long tile_compat_sys_msgrcv(int msqid,
			    struct compat_msgbuf __user *msgp,
			    size_t msgsz, long msgtyp, int msgflg);
long tile_compat_sys_ptrace(compat_long_t request, compat_long_t pid,
			    compat_long_t addr, compat_long_t data);

/* Tilera Linux syscalls that don't have "compat" versions. */
#define compat_sys_raise_fpe sys_raise_fpe
#define compat_sys_flush_cache sys_flush_cache

#endif /* _ASM_TILE_COMPAT_H */
Commit	Line	Data
867e359b CM	1	/*
	2	* Copyright 2010 Tilera Corporation. All Rights Reserved.
	3	*
	4	* This program is free software; you can redistribute it and/or
	5	* modify it under the terms of the GNU General Public License
	6	* as published by the Free Software Foundation, version 2.
	7	*
	8	* This program is distributed in the hope that it will be useful, but
	9	* WITHOUT ANY WARRANTY; without even the implied warranty of
	10	* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
	11	* NON INFRINGEMENT. See the GNU General Public License for
	12	* more details.
	13	*/
	14
	15	#ifndef _ASM_TILE_COMPAT_H
	16	#define _ASM_TILE_COMPAT_H
	17
	18	/*
	19	* Architecture specific compatibility types
	20	*/
	21	#include <linux/types.h>
	22	#include <linux/sched.h>
	23
	24	#define COMPAT_USER_HZ 100
	25
	26	/* "long" and pointer-based types are different. */
	27	typedef s32 compat_long_t;
	28	typedef u32 compat_ulong_t;
	29	typedef u32 compat_size_t;
	30	typedef s32 compat_ssize_t;
	31	typedef s32 compat_off_t;
	32	typedef s32 compat_time_t;
	33	typedef s32 compat_clock_t;
	34	typedef u32 compat_ino_t;
	35	typedef u32 compat_caddr_t;
	36	typedef u32 compat_uptr_t;
	37
	38	/* Many types are "int" or otherwise the same. */
	39	typedef __kernel_pid_t compat_pid_t;
	40	typedef __kernel_uid_t __compat_uid_t;
	41	typedef __kernel_gid_t __compat_gid_t;
	42	typedef __kernel_uid32_t __compat_uid32_t;
	43	typedef __kernel_uid32_t __compat_gid32_t;
	44	typedef __kernel_mode_t compat_mode_t;
	45	typedef __kernel_dev_t compat_dev_t;
	46	typedef __kernel_loff_t compat_loff_t;
	47	typedef __kernel_nlink_t compat_nlink_t;
	48	typedef __kernel_ipc_pid_t compat_ipc_pid_t;
	49	typedef __kernel_daddr_t compat_daddr_t;
	50	typedef __kernel_fsid_t compat_fsid_t;
	51	typedef __kernel_timer_t compat_timer_t;
	52	typedef __kernel_key_t compat_key_t;
	53	typedef int compat_int_t;
	54	typedef s64 compat_s64;
	55	typedef uint compat_uint_t;
	56	typedef u64 compat_u64;
	57
	58	/* We use the same register dump format in 32-bit images. */
	59	typedef unsigned long compat_elf_greg_t;
	60	#define COMPAT_ELF_NGREG (sizeof(struct pt_regs) / sizeof(compat_elf_greg_t))
	61	typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
	62
	63	struct compat_timespec {
	64	compat_time_t tv_sec;
65	s32 tv_nsec;
66	};
67
68	struct compat_timeval {
69	compat_time_t tv_sec;
70	s32 tv_usec;
71	};
72
73	struct compat_stat {
74	unsigned int st_dev;
75	unsigned int st_ino;
76	unsigned int st_mode;
77	unsigned int st_nlink;
78	unsigned int st_uid;
79	unsigned int st_gid;
80	unsigned int st_rdev;
81	unsigned int __pad1;
82	int st_size;
83	int st_blksize;
84	int __pad2;
85	int st_blocks;
86	int st_atime;
87	unsigned int st_atime_nsec;
88	int st_mtime;
89	unsigned int st_mtime_nsec;
90	int st_ctime;
91	unsigned int st_ctime_nsec;
92	unsigned int __unused[2];
93	};
94
95	struct compat_stat64 {
96	unsigned long st_dev;
97	unsigned long st_ino;
98	unsigned int st_mode;
99	unsigned int st_nlink;
100	unsigned int st_uid;
101	unsigned int st_gid;
102	unsigned long st_rdev;
103	long st_size;
104	unsigned int st_blksize;
105	unsigned long st_blocks __attribute__((packed));
106	unsigned int st_atime;
107	unsigned int st_atime_nsec;
108	unsigned int st_mtime;
109	unsigned int st_mtime_nsec;
110	unsigned int st_ctime;
111	unsigned int st_ctime_nsec;
112	unsigned int __unused8;
113	};
114
115	#define compat_statfs statfs
116
117	struct compat_sysctl {
118	unsigned int name;
119	int nlen;
120	unsigned int oldval;
121	unsigned int oldlenp;
122	unsigned int newval;
123	unsigned int newlen;
124	unsigned int __unused[4];
125	};
126
127
128	struct compat_flock {
129	short l_type;
130	short l_whence;
131	compat_off_t l_start;
132	compat_off_t l_len;
133	compat_pid_t l_pid;
134	};
135
136	#define F_GETLK64 12 /* using 'struct flock64' */
137	#define F_SETLK64 13
138	#define F_SETLKW64 14
139
140	struct compat_flock64 {
141	short l_type;
142	short l_whence;
143	compat_loff_t l_start;
144	compat_loff_t l_len;
145	compat_pid_t l_pid;
146	};
147
148	#define COMPAT_RLIM_INFINITY 0xffffffff
149
150	#define _COMPAT_NSIG 64
151	#define _COMPAT_NSIG_BPW 32
152
153	typedef u32 compat_sigset_word;
154
155	#define COMPAT_OFF_T_MAX 0x7fffffff
156	#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
157
158	struct compat_ipc64_perm {
159	compat_key_t key;
160	__compat_uid32_t uid;
161	__compat_gid32_t gid;
162	__compat_uid32_t cuid;
163	__compat_gid32_t cgid;
164	unsigned short mode;
165	unsigned short __pad1;
166	unsigned short seq;
167	unsigned short __pad2;
168	compat_ulong_t unused1;
169	compat_ulong_t unused2;
170	};
171
172	struct compat_semid64_ds {
173	struct compat_ipc64_perm sem_perm;
174	compat_time_t sem_otime;
175	compat_ulong_t __unused1;
176	compat_time_t sem_ctime;
177	compat_ulong_t __unused2;
178	compat_ulong_t sem_nsems;
179	compat_ulong_t __unused3;
180	compat_ulong_t __unused4;
181	};
182
183	struct compat_msqid64_ds {
184	struct compat_ipc64_perm msg_perm;
185	compat_time_t msg_stime;
186	compat_ulong_t __unused1;
187	compat_time_t msg_rtime;
188	compat_ulong_t __unused2;
189	compat_time_t msg_ctime;
190	compat_ulong_t __unused3;
191	compat_ulong_t msg_cbytes;
192	compat_ulong_t msg_qnum;
193	compat_ulong_t msg_qbytes;
194	compat_pid_t msg_lspid;
195	compat_pid_t msg_lrpid;
196	compat_ulong_t __unused4;
197	compat_ulong_t __unused5;
198	};
199
200	struct compat_shmid64_ds {
201	struct compat_ipc64_perm shm_perm;
202	compat_size_t shm_segsz;
203	compat_time_t shm_atime;
204	compat_ulong_t __unused1;
205	compat_time_t shm_dtime;
206	compat_ulong_t __unused2;
207	compat_time_t shm_ctime;
208	compat_ulong_t __unused3;
209	compat_pid_t shm_cpid;
210	compat_pid_t shm_lpid;
211	compat_ulong_t shm_nattch;
212	compat_ulong_t __unused4;
213	compat_ulong_t __unused5;
214	};
215
216	/*
217	* A pointer passed in from user mode. This should not
218	* be used for syscall parameters, just declare them
219	* as pointers because the syscall entry code will have
220	* appropriately converted them already.
221	*/
222
223	static inline void __user *compat_ptr(compat_uptr_t uptr)
224	{
9f9c0382	225	return (void __user *)(long)(s32)uptr;
867e359b CM	226	}
	227
	228	static inline compat_uptr_t ptr_to_compat(void __user *uptr)
	229	{
	230	return (u32)(unsigned long)uptr;
	231	}
	232
	233	/* Sign-extend when storing a kernel pointer to a user's ptregs. */
	234	static inline unsigned long ptr_to_compat_reg(void __user *uptr)
	235	{
	236	return (long)(int)(long)uptr;
	237	}
	238
	239	static inline void __user *compat_alloc_user_space(long len)
	240	{
	241	struct pt_regs *regs = task_pt_regs(current);
	242	return (void __user *)regs->sp - len;
	243	}
	244
	245	static inline int is_compat_task(void)
	246	{
	247	return current_thread_info()->status & TS_COMPAT;
	248	}
	249
	250	extern int compat_setup_rt_frame(int sig, struct k_sigaction *ka,
	251	siginfo_t info, sigset_t set,
	252	struct pt_regs *regs);
	253
	254	/* Compat syscalls. */
	255	struct compat_sigaction;
	256	struct compat_siginfo;
	257	struct compat_sigaltstack;
	258	long compat_sys_execve(char __user path, compat_uptr_t __user argv,
	259	compat_uptr_t __user *envp);
	260	long compat_sys_rt_sigaction(int sig, struct compat_sigaction __user *act,
	261	struct compat_sigaction __user *oact,
	262	size_t sigsetsize);
	263	long compat_sys_rt_sigqueueinfo(int pid, int sig,
	264	struct compat_siginfo __user *uinfo);
	265	long compat_sys_rt_sigreturn(void);
	266	long compat_sys_sigaltstack(const struct compat_sigaltstack __user *uss_ptr,
	267	struct compat_sigaltstack __user *uoss_ptr);
	268	long compat_sys_truncate64(char __user *filename, u32 dummy, u32 low, u32 high);
	269	long compat_sys_ftruncate64(unsigned int fd, u32 dummy, u32 low, u32 high);
	270	long compat_sys_pread64(unsigned int fd, char __user *ubuf, size_t count,
	271	u32 dummy, u32 low, u32 high);
	272	long compat_sys_pwrite64(unsigned int fd, char __user *ubuf, size_t count,
	273	u32 dummy, u32 low, u32 high);
	274	long compat_sys_lookup_dcookie(u32 low, u32 high, char __user *buf, size_t len);
	275	long compat_sys_sync_file_range2(int fd, unsigned int flags,
	276	u32 offset_lo, u32 offset_hi,
	277	u32 nbytes_lo, u32 nbytes_hi);
	278	long compat_sys_fallocate(int fd, int mode,
	279	u32 offset_lo, u32 offset_hi,
	280	u32 len_lo, u32 len_hi);
	281	long compat_sys_stat64(char __user *filename,
	282	struct compat_stat64 __user *statbuf);
	283	long compat_sys_lstat64(char __user *filename,
	284	struct compat_stat64 __user *statbuf);
	285	long compat_sys_fstat64(unsigned int fd, struct compat_stat64 __user *statbuf);
	286	long compat_sys_fstatat64(int dfd, char __user *filename,
	287	struct compat_stat64 __user *statbuf, int flag);
	288	long compat_sys_sched_rr_get_interval(compat_pid_t pid,
	289	struct compat_timespec __user *interval);
290	ssize_t compat_sys_sendfile(int out_fd, int in_fd, compat_off_t __user *offset,
291	size_t count);
292
293	/* Versions of compat functions that differ from generic Linux. */
294	struct compat_msgbuf;
295	long tile_compat_sys_msgsnd(int msqid,
296	struct compat_msgbuf __user *msgp,
297	size_t msgsz, int msgflg);
298	long tile_compat_sys_msgrcv(int msqid,
299	struct compat_msgbuf __user *msgp,
300	size_t msgsz, long msgtyp, int msgflg);
301	long tile_compat_sys_ptrace(compat_long_t request, compat_long_t pid,
302	compat_long_t addr, compat_long_t data);
303
304	/* Tilera Linux syscalls that don't have "compat" versions. */
305	#define compat_sys_raise_fpe sys_raise_fpe
306	#define compat_sys_flush_cache sys_flush_cache
307
308	#endif /* _ASM_TILE_COMPAT_H */