arch/arm64/include/asm/page.h

   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