xref: /openbmc/linux/arch/arm64/include/asm/page.h (revision 234489ac)
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 folio *vma_alloc_zeroed_movable_folio(struct vm_area_struct *vma,
33 						unsigned long vaddr);
34 #define vma_alloc_zeroed_movable_folio vma_alloc_zeroed_movable_folio
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