1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (C) 2005-2017 Andes Technology Corporation
4 */
5
6#ifndef _ASMNDS32_PAGE_H
7#define _ASMNDS32_PAGE_H
8
9#ifdef CONFIG_ANDES_PAGE_SIZE_4KB
10#define PAGE_SHIFT      12
11#endif
12#ifdef CONFIG_ANDES_PAGE_SIZE_8KB
13#define PAGE_SHIFT      13
14#endif
15#include <linux/const.h>
16#define PAGE_SIZE       (_AC(1,UL) << PAGE_SHIFT)
17#define PAGE_MASK       (~(PAGE_SIZE-1))
18
19#ifdef __KERNEL__
20
21#ifndef __ASSEMBLY__
22
23struct page;
24struct vm_area_struct;
25#ifdef CONFIG_CPU_CACHE_ALIASING
26extern void copy_user_highpage(struct page *to, struct page *from,
27			       unsigned long vaddr, struct vm_area_struct *vma);
28extern void clear_user_highpage(struct page *page, unsigned long vaddr);
29
30void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
31		    struct page *to);
32void clear_user_page(void *addr, unsigned long vaddr, struct page *page);
33#define __HAVE_ARCH_COPY_USER_HIGHPAGE
34#define clear_user_highpage	clear_user_highpage
35#else
36#define clear_user_page(page, vaddr, pg)        clear_page(page)
37#define copy_user_page(to, from, vaddr, pg)     copy_page(to, from)
38#endif
39
40void clear_page(void *page);
41void copy_page(void *to, void *from);
42
43typedef unsigned long pte_t;
44typedef unsigned long pgd_t;
45typedef unsigned long pgprot_t;
46
47#define pte_val(x)      (x)
48#define pgd_val(x)	(x)
49#define pgprot_val(x)   (x)
50
51#define __pte(x)        (x)
52#define __pgd(x)        (x)
53#define __pgprot(x)     (x)
54
55typedef struct page *pgtable_t;
56
57#include <asm/memory.h>
58#include <asm-generic/getorder.h>
59
60#endif /* !__ASSEMBLY__ */
61
62#endif /* __KERNEL__ */
63
64#endif
65