blob: 46af552b91c740da7cf222460dea5ecfa4e0f632 [file] [log] [blame] [edit]
#ifndef _ASMARM64_PAGE_H_
#define _ASMARM64_PAGE_H_
/*
* Adapted from
* arch/arm64/include/asm/pgtable-types.h
* include/asm-generic/pgtable-nopmd.h
*
* Copyright (C) 2017, Red Hat Inc, Andrew Jones <drjones@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2.
*/
#include <linux/const.h>
#define PGTABLE_LEVELS 2
#define VA_BITS 42
#define PAGE_SHIFT 16
#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))
#ifndef __ASSEMBLY__
#define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE)
typedef u64 pteval_t;
typedef u64 pmdval_t;
typedef u64 pgdval_t;
typedef struct { pteval_t pte; } pte_t;
typedef struct { pgdval_t pgd; } pgd_t;
typedef struct { pteval_t pgprot; } pgprot_t;
#define pte_val(x) ((x).pte)
#define pgd_val(x) ((x).pgd)
#define pgprot_val(x) ((x).pgprot)
#define __pte(x) ((pte_t) { (x) } )
#define __pgd(x) ((pgd_t) { (x) } )
#define __pgprot(x) ((pgprot_t) { (x) } )
typedef struct { pgd_t pgd; } pmd_t;
#define pmd_val(x) (pgd_val((x).pgd))
#define __pmd(x) ((pmd_t) { __pgd(x) } )
#define __va(x) ((void *)__phys_to_virt((phys_addr_t)(x)))
#define __pa(x) __virt_to_phys((unsigned long)(x))
#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT)
#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT)
extern phys_addr_t __virt_to_phys(unsigned long addr);
extern unsigned long __phys_to_virt(phys_addr_t addr);
#endif /* !__ASSEMBLY__ */
#endif /* _ASMARM64_PAGE_H_ */