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Commit 4892242a authored by Greg Ungerer's avatar Greg Ungerer
Browse files

m68k: merge the mmu and non-mmu versions of segment.h 



Trivial merge of the mmu and non-mmu version of segment.h.

Signed-off-by: default avatarGreg Ungerer <gerg@uclinux.org>
Acked-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
parent 872065e7

arch/m68k/include/asm/segment.h

+61 −3
Original line number Diff line number Diff line 
#ifdef __uClinux__

#include "segment_no.h"

#ifndef _M68K_SEGMENT_H

#define _M68K_SEGMENT_H



/* define constants */

/* Address spaces (FC0-FC2) */

#define USER_DATA     (1)

#ifndef __USER_DS

#define __USER_DS     (USER_DATA)

#endif

#define USER_PROGRAM  (2)

#define SUPER_DATA    (5)

#ifndef __KERNEL_DS

#define __KERNEL_DS   (SUPER_DATA)

#endif

#define SUPER_PROGRAM (6)

#define CPU_SPACE     (7)



#ifndef __ASSEMBLY__



typedef struct {

	unsigned long seg;

} mm_segment_t;



#define MAKE_MM_SEG(s)	((mm_segment_t) { (s) })

#define USER_DS		MAKE_MM_SEG(__USER_DS)

#define KERNEL_DS	MAKE_MM_SEG(__KERNEL_DS)



/*

 * Get/set the SFC/DFC registers for MOVES instructions

 */



static inline mm_segment_t get_fs(void)

{

#ifdef CONFIG_MMU

	mm_segment_t _v;

	__asm__ ("movec %/dfc,%0":"=r" (_v.seg):);



	return _v;

#else

#include "segment_mm.h"

	return USER_DS;

#endif

}



static inline mm_segment_t get_ds(void)

{

    /* return the supervisor data space code */

    return KERNEL_DS;

}



static inline void set_fs(mm_segment_t val)

{

#ifdef CONFIG_MMU

	__asm__ __volatile__ ("movec %0,%/sfc\n\t"

			      "movec %0,%/dfc\n\t"

			      : /* no outputs */ : "r" (val.seg) : "memory");

#endif

}



#define segment_eq(a,b)	((a).seg == (b).seg)



#endif /* __ASSEMBLY__ */



#endif /* _M68K_SEGMENT_H */

arch/m68k/include/asm/segment_mm.h

deleted100644 → 0
+0 −57
Original line number Diff line number Diff line 
#ifndef _M68K_SEGMENT_H

#define _M68K_SEGMENT_H



/* define constants */

/* Address spaces (FC0-FC2) */

#define USER_DATA     (1)

#ifndef __USER_DS

#define __USER_DS     (USER_DATA)

#endif

#define USER_PROGRAM  (2)

#define SUPER_DATA    (5)

#ifndef __KERNEL_DS

#define __KERNEL_DS   (SUPER_DATA)

#endif

#define SUPER_PROGRAM (6)

#define CPU_SPACE     (7)



#ifndef __ASSEMBLY__



typedef struct {

	unsigned long seg;

} mm_segment_t;



#define MAKE_MM_SEG(s)	((mm_segment_t) { (s) })

#define USER_DS		MAKE_MM_SEG(__USER_DS)

#define KERNEL_DS	MAKE_MM_SEG(__KERNEL_DS)



/*

 * Get/set the SFC/DFC registers for MOVES instructions

 */



static inline mm_segment_t get_fs(void)

{

	mm_segment_t _v;

	__asm__ ("movec %/dfc,%0":"=r" (_v.seg):);



	return _v;

}



static inline mm_segment_t get_ds(void)

{

    /* return the supervisor data space code */

    return KERNEL_DS;

}



static inline void set_fs(mm_segment_t val)

{

	__asm__ __volatile__ ("movec %0,%/sfc\n\t"

			      "movec %0,%/dfc\n\t"

			      : /* no outputs */ : "r" (val.seg) : "memory");

}



#define segment_eq(a,b)	((a).seg == (b).seg)



#endif /* __ASSEMBLY__ */



#endif /* _M68K_SEGMENT_H */

arch/m68k/include/asm/segment_no.h

deleted100644 → 0
+0 −51
Original line number Diff line number Diff line 
#ifndef _M68K_SEGMENT_H

#define _M68K_SEGMENT_H



/* define constants */

/* Address spaces (FC0-FC2) */

#define USER_DATA     (1)

#ifndef __USER_DS

#define __USER_DS     (USER_DATA)

#endif

#define USER_PROGRAM  (2)

#define SUPER_DATA    (5)

#ifndef __KERNEL_DS

#define __KERNEL_DS   (SUPER_DATA)

#endif

#define SUPER_PROGRAM (6)

#define CPU_SPACE     (7)



#ifndef __ASSEMBLY__



typedef struct {

	unsigned long seg;

} mm_segment_t;



#define MAKE_MM_SEG(s)	((mm_segment_t) { (s) })

#define USER_DS		MAKE_MM_SEG(__USER_DS)

#define KERNEL_DS	MAKE_MM_SEG(__KERNEL_DS)



/*

 * Get/set the SFC/DFC registers for MOVES instructions

 */



static inline mm_segment_t get_fs(void)

{

    return USER_DS;

}



static inline mm_segment_t get_ds(void)

{

    /* return the supervisor data space code */

    return KERNEL_DS;

}



static inline void set_fs(mm_segment_t val)

{

}



#define segment_eq(a,b)	((a).seg == (b).seg)



#endif /* __ASSEMBLY__ */



#endif /* _M68K_SEGMENT_H */