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Linux/arch/arm64/include/asm/page.h

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  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 <linux/types.h> /* for gfp_t */
 17 #include <asm/pgtable-types.h>
 18 
 19 struct page;
 20 struct vm_area_struct;
 21 
 22 extern void copy_page(void *to, const void *from);
 23 extern void clear_page(void *to);
 24 
 25 void copy_user_highpage(struct page *to, struct page *from,
 26                         unsigned long vaddr, struct vm_area_struct *vma);
 27 #define __HAVE_ARCH_COPY_USER_HIGHPAGE
 28 
 29 void copy_highpage(struct page *to, struct page *from);
 30 #define __HAVE_ARCH_COPY_HIGHPAGE
 31 
 32 struct page *alloc_zeroed_user_highpage_movable(struct vm_area_struct *vma,
 33                                                 unsigned long vaddr);
 34 #define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE_MOVABLE
 35 
 36 void tag_clear_highpage(struct page *to);
 37 #define __HAVE_ARCH_TAG_CLEAR_HIGHPAGE
 38 
 39 #define clear_user_page(page, vaddr, pg)        clear_page(page)
 40 #define copy_user_page(to, from, vaddr, pg)     copy_page(to, from)
 41 
 42 typedef struct page *pgtable_t;
 43 
 44 int pfn_is_map_memory(unsigned long pfn);
 45 
 46 #include <asm/memory.h>
 47 
 48 #endif /* !__ASSEMBLY__ */
 49 
 50 #define VM_DATA_DEFAULT_FLAGS   (VM_DATA_FLAGS_TSK_EXEC | VM_MTE_ALLOWED)
 51 
 52 #include <asm-generic/getorder.h>
 53 
 54 #endif
 55 

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