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#ifndef __ASM_ARM_SEGMENT_H

#define __ASM_ARM_SEGMENT_H

#define KERNEL_CS   0x0

#define KERNEL_DS   0x0

#define USER_CS     0x1

#define USER_DS     0x1

#ifndef __ASSEMBLY__

#ifdef NO_INLINE

#define __INLINE__

#else

#define __INLINE__ inline

#endif

#include <linux/sched.h>

/*

 * A better way to do this might be to pass to put/get user a flag

 * indicating the possibility of kernel memory accesses...  That

 * would allow gcc to optimize the following routines a bit better

 * than that which is possible at the moment.

 */

#define IS_USER_SEG (current->tss.fs != KERNEL_DS)

/*

 * Uh, these should become the main single-value transfer routines..

 * They automatically use the right size if we just have the right

 * pointer type..

 */

#define put_user(x,ptr) __put_user((unsigned long)(x),(ptr),sizeof(*(ptr)))

#define get_user(ptr) ((__typeof__(*(ptr)))__get_user((ptr),sizeof(*(ptr))))

/*

 * This is a silly but good way to make sure that

 * the __put_user function is indeed always optimized,

 * and that we use the correct sizes..

 */

extern int bad_user_access_length(void);

#ifdef __KERNEL__

#include <asm/proc/segment.h>

/*

 * these are depreciated..

 */

static __INLINE__ unsigned char get_user_byte(const char *addr)

{

        return __get_user(addr, 1);

}

#define get_fs_byte(addr) get_user_byte((char *)(addr))

static __INLINE__ unsigned short get_user_word(const short *addr)

{

        return __get_user(addr, 2);

}

#define get_fs_word(addr) get_user_word((short *)(addr))

static __INLINE__ unsigned long get_user_long(const long *addr)

{

        return __get_user(addr, 4);

}

#define get_fs_long(addr) get_user_long((long *)(addr))

static __INLINE__ void put_user_byte(char val,char *addr)

{

        __put_user(val, addr, 1);

}

#define put_fs_byte(x,addr) put_user_byte((x),(char *)(addr))

static __INLINE__ void put_user_word(short val,short *addr)

{

        __put_user(val, addr, 2);

}

#define put_fs_word(x,addr) put_user_word((x),(short *)(addr))

static __INLINE__ void put_user_long(long val,long *addr)

{

        __put_user(val, addr, 4);

}

#define put_fs_long(x,addr) put_user_long((x),(long *)(addr))

extern void memcpy_fromfs(void * to, const void * from, unsigned long n);

extern void __memcpy_tofs(void * to, const void * from, unsigned long n);

static __INLINE__ void memcpy_tofs(void *to, const void *from, unsigned long n)

{

        if(IS_USER_SEG)

                __memcpy_tofs(to, from, n);

        else

                memcpy(to, from, n);

}

static inline unsigned long get_fs(void)

{

        return current->tss.fs;

}

static inline unsigned long get_ds(void)

{

        return KERNEL_DS;

}

static inline void set_fs(unsigned long val)

{

        current->tss.fs = val;

}

#endif /* __KERNEL__ */

#endif /* __ASSEMBLY__ */

#endif /* __ASM_ARM_SEGMENT_H */