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m68k/m68knommu: clean up page.h
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There is a lot of common defines in the MMU and non-MMU variants of
page.h. Factor out the common stuff into the master page.h. It still
includes the underlying page_mm.h or page_no.h, but they only contain
the real differences now.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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Greg Ungerer authored and Geert Uytterhoeven committed Oct 22, 2010
1 parent b0860c1 commit 138ff34
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Showing 3 changed files with 55 additions and 93 deletions.
48 changes: 46 additions & 2 deletions arch/m68k/include/asm/page.h
Original file line number Diff line number Diff line change
@@ -1,5 +1,49 @@
#ifdef __uClinux__
#include "page_no.h"
#ifndef _M68K_PAGE_H
#define _M68K_PAGE_H

#include <linux/const.h>
#include <asm/setup.h>
#include <asm/page_offset.h>

/* PAGE_SHIFT determines the page size */
#ifndef CONFIG_SUN3
#define PAGE_SHIFT (12)
#else
#define PAGE_SHIFT (13)
#endif
#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))
#define PAGE_OFFSET (PAGE_OFFSET_RAW)

#ifndef __ASSEMBLY__

/*
* These are used to make use of C type-checking..
*/
typedef struct { unsigned long pte; } pte_t;
typedef struct { unsigned long pmd[16]; } pmd_t;
typedef struct { unsigned long pgd; } pgd_t;
typedef struct { unsigned long pgprot; } pgprot_t;
typedef struct page *pgtable_t;

#define pte_val(x) ((x).pte)
#define pmd_val(x) ((&x)->pmd[0])
#define pgd_val(x) ((x).pgd)
#define pgprot_val(x) ((x).pgprot)

#define __pte(x) ((pte_t) { (x) } )
#define __pmd(x) ((pmd_t) { (x) } )
#define __pgd(x) ((pgd_t) { (x) } )
#define __pgprot(x) ((pgprot_t) { (x) } )

#endif /* !__ASSEMBLY__ */

#ifdef CONFIG_MMU
#include "page_mm.h"
#else
#include "page_no.h"
#endif

#include <asm-generic/getorder.h>

#endif /* _M68K_PAGE_H */
49 changes: 3 additions & 46 deletions arch/m68k/include/asm/page_mm.h
Original file line number Diff line number Diff line change
@@ -1,23 +1,9 @@
#ifndef _M68K_PAGE_H
#define _M68K_PAGE_H

#include <linux/const.h>

/* PAGE_SHIFT determines the page size */
#ifndef CONFIG_SUN3
#define PAGE_SHIFT (12)
#else
#define PAGE_SHIFT (13)
#endif
#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))

#include <asm/setup.h>
#ifndef _M68K_PAGE_MM_H
#define _M68K_PAGE_MM_H

#ifndef __ASSEMBLY__

#include <linux/compiler.h>

#include <asm/module.h>

#define get_user_page(vaddr) __get_free_page(GFP_KERNEL)
Expand Down Expand Up @@ -78,33 +64,6 @@ static inline void clear_page(void *page)
flush_dcache_page(page); \
} while (0)

/*
* These are used to make use of C type-checking..
*/
typedef struct { unsigned long pte; } pte_t;
typedef struct { unsigned long pmd[16]; } pmd_t;
typedef struct { unsigned long pgd; } pgd_t;
typedef struct { unsigned long pgprot; } pgprot_t;
typedef struct page *pgtable_t;

#define pte_val(x) ((x).pte)
#define pmd_val(x) ((&x)->pmd[0])
#define pgd_val(x) ((x).pgd)
#define pgprot_val(x) ((x).pgprot)

#define __pte(x) ((pte_t) { (x) } )
#define __pmd(x) ((pmd_t) { (x) } )
#define __pgd(x) ((pgd_t) { (x) } )
#define __pgprot(x) ((pgprot_t) { (x) } )

#endif /* !__ASSEMBLY__ */

#include <asm/page_offset.h>

#define PAGE_OFFSET (PAGE_OFFSET_RAW)

#ifndef __ASSEMBLY__

extern unsigned long m68k_memoffset;

#ifndef CONFIG_SUN3
Expand Down Expand Up @@ -217,6 +176,4 @@ static inline __attribute_const__ int __virt_to_node_shift(void)
#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)

#include <asm-generic/getorder.h>

#endif /* _M68K_PAGE_H */
#endif /* _M68K_PAGE_MM_H */
51 changes: 6 additions & 45 deletions arch/m68k/include/asm/page_no.h
Original file line number Diff line number Diff line change
@@ -1,18 +1,11 @@
#ifndef _M68KNOMMU_PAGE_H
#define _M68KNOMMU_PAGE_H

#include <linux/const.h>

/* PAGE_SHIFT determines the page size */

#define PAGE_SHIFT (12)
#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))

#include <asm/setup.h>
#ifndef _M68K_PAGE_NO_H
#define _M68K_PAGE_NO_H

#ifndef __ASSEMBLY__

extern unsigned long memory_start;
extern unsigned long memory_end;

#define get_user_page(vaddr) __get_free_page(GFP_KERNEL)
#define free_user_page(page, addr) free_page(addr)

Expand All @@ -26,36 +19,6 @@
alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE

/*
* These are used to make use of C type-checking..
*/
typedef struct { unsigned long pte; } pte_t;
typedef struct { unsigned long pmd[16]; } pmd_t;
typedef struct { unsigned long pgd; } pgd_t;
typedef struct { unsigned long pgprot; } pgprot_t;
typedef struct page *pgtable_t;

#define pte_val(x) ((x).pte)
#define pmd_val(x) ((&x)->pmd[0])
#define pgd_val(x) ((x).pgd)
#define pgprot_val(x) ((x).pgprot)

#define __pte(x) ((pte_t) { (x) } )
#define __pmd(x) ((pmd_t) { (x) } )
#define __pgd(x) ((pgd_t) { (x) } )
#define __pgprot(x) ((pgprot_t) { (x) } )

extern unsigned long memory_start;
extern unsigned long memory_end;

#endif /* !__ASSEMBLY__ */

#include <asm/page_offset.h>

#define PAGE_OFFSET (PAGE_OFFSET_RAW)

#ifndef __ASSEMBLY__

#define __pa(vaddr) ((unsigned long)(vaddr))
#define __va(paddr) ((void *)(paddr))

Expand All @@ -74,6 +37,4 @@ extern unsigned long memory_end;

#endif /* __ASSEMBLY__ */

#include <asm-generic/getorder.h>

#endif /* _M68KNOMMU_PAGE_H */
#endif /* _M68K_PAGE_NO_H */

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