1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _M68K_PAGE_H
 3#define _M68K_PAGE_H
 4
 5#include <linux/const.h>
 6#include <asm/setup.h>
 7#include <asm/page_offset.h>
 8
 9/* PAGE_SHIFT determines the page size */
10#define PAGE_SHIFT	CONFIG_PAGE_SHIFT
11#define PAGE_SIZE	(_AC(1, UL) << PAGE_SHIFT)
12#define PAGE_MASK	(~(PAGE_SIZE-1))
13#define PAGE_OFFSET	(PAGE_OFFSET_RAW)
14
15#ifndef __ASSEMBLY__
16
17/*
18 * These are used to make use of C type-checking..
19 */
20#if !defined(CONFIG_MMU) || CONFIG_PGTABLE_LEVELS == 3
21typedef struct { unsigned long pmd; } pmd_t;
22#define pmd_val(x)	((&x)->pmd)
23#define __pmd(x)	((pmd_t) { (x) } )
24#endif
25
26typedef struct { unsigned long pte; } pte_t;
27typedef struct { unsigned long pgd; } pgd_t;
28typedef struct { unsigned long pgprot; } pgprot_t;
29
30#if defined(CONFIG_SUN3)
31/*
32 * Sun3 still uses the asm-generic/pgalloc.h code and thus needs this
33 * definition. It would be possible to unify Sun3 and ColdFire pgalloc and have
34 * all of m68k use the same type.
35 */
36typedef struct page *pgtable_t;
37#else
38typedef pte_t *pgtable_t;
39#endif
40
41#define pte_val(x)	((x).pte)
42#define pgd_val(x)	((x).pgd)
43#define pgprot_val(x)	((x).pgprot)
44
45#define __pte(x)	((pte_t) { (x) } )
46#define __pgd(x)	((pgd_t) { (x) } )
47#define __pgprot(x)	((pgprot_t) { (x) } )
48
49extern unsigned long _rambase;
50extern unsigned long _ramstart;
51extern unsigned long _ramend;
52
53#endif /* !__ASSEMBLY__ */
54
55#ifdef CONFIG_MMU
56#include <asm/page_mm.h>
57#else
58#include <asm/page_no.h>
59#endif
60
61#include <asm-generic/getorder.h>
62#include <asm-generic/memory_model.h>
63
64#endif /* _M68K_PAGE_H */

 1#ifndef _M68K_PAGE_H
 2#define _M68K_PAGE_H
 3
 4#include <linux/const.h>
 5#include <asm/setup.h>
 6#include <asm/page_offset.h>
 7
 8/* PAGE_SHIFT determines the page size */
 9#if defined(CONFIG_SUN3) || defined(CONFIG_COLDFIRE)
10#define PAGE_SHIFT	13
11#else
12#define PAGE_SHIFT	12
13#endif
14#define PAGE_SIZE	(_AC(1, UL) << PAGE_SHIFT)
15#define PAGE_MASK	(~(PAGE_SIZE-1))
16#define PAGE_OFFSET	(PAGE_OFFSET_RAW)
17
18#ifndef __ASSEMBLY__
19
20/*
21 * These are used to make use of C type-checking..
22 */
23typedef struct { unsigned long pte; } pte_t;
24typedef struct { unsigned long pmd[16]; } pmd_t;
25typedef struct { unsigned long pgd; } pgd_t;
26typedef struct { unsigned long pgprot; } pgprot_t;
27typedef struct page *pgtable_t;
28
29#define pte_val(x)	((x).pte)
30#define pmd_val(x)	((&x)->pmd[0])
31#define pgd_val(x)	((x).pgd)
32#define pgprot_val(x)	((x).pgprot)
33
34#define __pte(x)	((pte_t) { (x) } )
35#define __pmd(x)	((pmd_t) { (x) } )
36#define __pgd(x)	((pgd_t) { (x) } )
37#define __pgprot(x)	((pgprot_t) { (x) } )
38
39extern unsigned long _rambase;
40extern unsigned long _ramstart;
41extern unsigned long _ramend;
42
43#endif /* !__ASSEMBLY__ */
44
45#ifdef CONFIG_MMU
46#include <asm/page_mm.h>
47#else
48#include <asm/page_no.h>
49#endif
50
51#define __phys_to_pfn(paddr)	((unsigned long)((paddr) >> PAGE_SHIFT))
52#define __pfn_to_phys(pfn)	PFN_PHYS(pfn)
53
54#define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \
55				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
56
57#include <asm-generic/getorder.h>
58
59#endif /* _M68K_PAGE_H */