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 23 struct page; 24 struct vm_area_struct; 25 #ifdef CONFIG_CPU_CACHE_ALIASING 26 extern void copy_user_highpage(struct page *to, struct page *from, 27 unsigned long vaddr, struct vm_area_struct *vma); 28 extern void clear_user_highpage(struct page *page, unsigned long vaddr); 29 30 void copy_user_page(void *vto, void *vfrom, unsigned long vaddr, 31 struct page *to); 32 void 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 40 void clear_page(void *page); 41 void copy_page(void *to, void *from); 42 43 typedef unsigned long pte_t; 44 typedef unsigned long pgd_t; 45 typedef 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 55 typedef 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