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19#ifndef __ASM_PAGE_H
20#define __ASM_PAGE_H
21
22#include <linux/const.h>
23
24
25
26#define PAGE_SHIFT CONFIG_ARM64_PAGE_SHIFT
27#define CONT_SHIFT CONFIG_ARM64_CONT_SHIFT
28#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
29#define PAGE_MASK (~(PAGE_SIZE-1))
30
31#define CONT_SIZE (_AC(1, UL) << (CONT_SHIFT + PAGE_SHIFT))
32#define CONT_MASK (~(CONT_SIZE-1))
33
34#ifndef __ASSEMBLY__
35
36#include <linux/personality.h>
37#include <asm/pgtable-types.h>
38
39extern void __cpu_clear_user_page(void *p, unsigned long user);
40extern void __cpu_copy_user_page(void *to, const void *from,
41 unsigned long user);
42extern void copy_page(void *to, const void *from);
43extern void clear_page(void *to);
44
45#define clear_user_page(addr,vaddr,pg) __cpu_clear_user_page(addr, vaddr)
46#define copy_user_page(to,from,vaddr,pg) __cpu_copy_user_page(to, from, vaddr)
47
48typedef struct page *pgtable_t;
49
50#ifdef CONFIG_HAVE_ARCH_PFN_VALID
51extern int pfn_valid(unsigned long);
52#endif
53
54#include <asm/memory.h>
55
56#endif
57
58#define VM_DATA_DEFAULT_FLAGS \
59 (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \
60 VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
61
62#include <asm-generic/getorder.h>
63
64#endif
65