page.h

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