1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Based on arch/arm/include/asm/page.h 4 * 5 * Copyright (C) 1995-2003 Russell King 6 * Copyright (C) 2012 ARM Ltd. 7 */ 8 #ifndef __ASM_PAGE_H 9 #define __ASM_PAGE_H 10 11 #include <asm/page-def.h> 12 13 #ifndef __ASSEMBLY__ 14 15 #include <linux/personality.h> /* for READ_IMPLIES_EXEC */ 16 #include <asm/pgtable-types.h> 17 18 struct page; 19 struct vm_area_struct; 20 21 extern void copy_page(void *to, const void *from); 22 extern void clear_page(void *to); 23 24 void copy_user_highpage(struct page *to, struct page *from, 25 unsigned long vaddr, struct vm_area_struct *vma); 26 #define __HAVE_ARCH_COPY_USER_HIGHPAGE 27 28 void copy_highpage(struct page *to, struct page *from); 29 #define __HAVE_ARCH_COPY_HIGHPAGE 30 31 #define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \ 32 alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr) 33 #define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE 34 35 #define clear_user_page(page, vaddr, pg) clear_page(page) 36 #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) 37 38 typedef struct page *pgtable_t; 39 40 extern int pfn_valid(unsigned long); 41 42 #include <asm/memory.h> 43 44 #endif /* !__ASSEMBLY__ */ 45 46 #define VM_DATA_DEFAULT_FLAGS (VM_DATA_FLAGS_TSK_EXEC | VM_MTE_ALLOWED) 47 48 #include <asm-generic/getorder.h> 49 50 #endif 51