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 __ASSEMBLER__ 14 15 #include <linux/personality.h> /* for READ_IMPLIES_EXEC */ 16 #include <linux/string.h> /* for memset() */ 17 #include <linux/types.h> /* for gfp_t */ 18 #include <asm/pgtable-types.h> 19 20 struct page; 21 struct vm_area_struct; 22 23 extern void copy_page(void *to, const void *from); 24 25 static inline void clear_pages(void *addr, unsigned int npages) 26 { 27 memset(addr, 0, npages * PAGE_SIZE); 28 } 29 #define clear_pages clear_pages 30 31 static inline void clear_page(void *addr) 32 { 33 clear_pages(addr, 1); 34 } 35 36 void copy_user_highpage(struct page *to, struct page *from, 37 unsigned long vaddr, struct vm_area_struct *vma); 38 #define __HAVE_ARCH_COPY_USER_HIGHPAGE 39 40 void copy_highpage(struct page *to, struct page *from); 41 #define __HAVE_ARCH_COPY_HIGHPAGE 42 43 struct folio *vma_alloc_zeroed_movable_folio(struct vm_area_struct *vma, 44 unsigned long vaddr); 45 #define vma_alloc_zeroed_movable_folio vma_alloc_zeroed_movable_folio 46 47 bool tag_clear_highpages(struct page *to, int numpages, bool clear_pages); 48 #define __HAVE_ARCH_TAG_CLEAR_HIGHPAGES 49 50 #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) 51 52 typedef struct page *pgtable_t; 53 54 int pfn_is_map_memory(unsigned long pfn); 55 56 #include <asm/memory.h> 57 58 #endif /* !__ASSEMBLER__ */ 59 60 #ifdef CONFIG_ARM64_MTE 61 #define VMA_DATA_DEFAULT_FLAGS append_vma_flags(VMA_DATA_FLAGS_TSK_EXEC, \ 62 VMA_MTE_ALLOWED_BIT) 63 #else 64 #define VMA_DATA_DEFAULT_FLAGS VMA_DATA_FLAGS_TSK_EXEC 65 #endif 66 67 #include <asm-generic/getorder.h> 68 69 #endif 70