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Diffstat (limited to '')
-rw-r--r-- | arch/nds32/include/asm/page.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/arch/nds32/include/asm/page.h b/arch/nds32/include/asm/page.h new file mode 100644 index 000000000..add33a7f0 --- /dev/null +++ b/arch/nds32/include/asm/page.h @@ -0,0 +1,64 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2005-2017 Andes Technology Corporation + */ + +#ifndef _ASMNDS32_PAGE_H +#define _ASMNDS32_PAGE_H + +#ifdef CONFIG_ANDES_PAGE_SIZE_4KB +#define PAGE_SHIFT 12 +#endif +#ifdef CONFIG_ANDES_PAGE_SIZE_8KB +#define PAGE_SHIFT 13 +#endif +#include <linux/const.h> +#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) +#define PAGE_MASK (~(PAGE_SIZE-1)) + +#ifdef __KERNEL__ + +#ifndef __ASSEMBLY__ + +struct page; +struct vm_area_struct; +#ifdef CONFIG_CPU_CACHE_ALIASING +extern void copy_user_highpage(struct page *to, struct page *from, + unsigned long vaddr, struct vm_area_struct *vma); +extern void clear_user_highpage(struct page *page, unsigned long vaddr); + +void copy_user_page(void *vto, void *vfrom, unsigned long vaddr, + struct page *to); +void clear_user_page(void *addr, unsigned long vaddr, struct page *page); +#define __HAVE_ARCH_COPY_USER_HIGHPAGE +#define clear_user_highpage clear_user_highpage +#else +#define clear_user_page(page, vaddr, pg) clear_page(page) +#define copy_user_page(to, from, vaddr, pg) copy_page(to, from) +#endif + +void clear_page(void *page); +void copy_page(void *to, void *from); + +typedef unsigned long pte_t; +typedef unsigned long pgd_t; +typedef unsigned long pgprot_t; + +#define pte_val(x) (x) +#define pgd_val(x) (x) +#define pgprot_val(x) (x) + +#define __pte(x) (x) +#define __pgd(x) (x) +#define __pgprot(x) (x) + +typedef struct page *pgtable_t; + +#include <asm/memory.h> +#include <asm-generic/getorder.h> + +#endif /* !__ASSEMBLY__ */ + +#endif /* __KERNEL__ */ + +#endif |