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/* SPDX-License-Identifier: GPL-2.0 */
#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 */
#if defined(CONFIG_SUN3) || defined(CONFIG_COLDFIRE)
#define PAGE_SHIFT 13
#else
#define PAGE_SHIFT 12
#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..
*/
#if !defined(CONFIG_MMU) || CONFIG_PGTABLE_LEVELS == 3
typedef struct { unsigned long pmd; } pmd_t;
#define pmd_val(x) ((&x)->pmd)
#define __pmd(x) ((pmd_t) { (x) } )
#endif
typedef struct { unsigned long pte; } pte_t;
typedef struct { unsigned long pgd; } pgd_t;
typedef struct { unsigned long pgprot; } pgprot_t;
#if defined(CONFIG_SUN3)
/*
* Sun3 still uses the asm-generic/pgalloc.h code and thus needs this
* definition. It would be possible to unify Sun3 and ColdFire pgalloc and have
* all of m68k use the same type.
*/
typedef struct page *pgtable_t;
#else
typedef pte_t *pgtable_t;
#endif
#define pte_val(x) ((x).pte)
#define pgd_val(x) ((x).pgd)
#define pgprot_val(x) ((x).pgprot)
#define __pte(x) ((pte_t) { (x) } )
#define __pgd(x) ((pgd_t) { (x) } )
#define __pgprot(x) ((pgprot_t) { (x) } )
extern unsigned long _rambase;
extern unsigned long _ramstart;
extern unsigned long _ramend;
#endif /* !__ASSEMBLY__ */
#ifdef CONFIG_MMU
#include <asm/page_mm.h>
#else
#include <asm/page_no.h>
#endif
#ifndef CONFIG_MMU
#define __phys_to_pfn(paddr) ((unsigned long)((paddr) >> PAGE_SHIFT))
#define __pfn_to_phys(pfn) PFN_PHYS(pfn)
#endif
#include <asm-generic/getorder.h>
#endif /* _M68K_PAGE_H */