1*30b1bc86SAndrew Jones #ifndef _ASMARM64_PAGE_H_ 2*30b1bc86SAndrew Jones #define _ASMARM64_PAGE_H_ 3*30b1bc86SAndrew Jones /* 4*30b1bc86SAndrew Jones * Adapted from 5*30b1bc86SAndrew Jones * arch/arm64/include/asm/pgtable-types.h 6*30b1bc86SAndrew Jones * include/asm-generic/pgtable-nopud.h 7*30b1bc86SAndrew Jones * include/asm-generic/pgtable-nopmd.h 8*30b1bc86SAndrew Jones * 9*30b1bc86SAndrew Jones * Copyright (C) 2014, Red Hat Inc, Andrew Jones <drjones@redhat.com> 10*30b1bc86SAndrew Jones * 11*30b1bc86SAndrew Jones * This work is licensed under the terms of the GNU LGPL, version 2. 12*30b1bc86SAndrew Jones */ 13*30b1bc86SAndrew Jones 14*30b1bc86SAndrew Jones #include <const.h> 15*30b1bc86SAndrew Jones 16*30b1bc86SAndrew Jones #define PGTABLE_LEVELS 2 17*30b1bc86SAndrew Jones #define VA_BITS 42 18*30b1bc86SAndrew Jones 19*30b1bc86SAndrew Jones #define PAGE_SHIFT 16 20*30b1bc86SAndrew Jones #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) 21*30b1bc86SAndrew Jones #define PAGE_MASK (~(PAGE_SIZE-1)) 22*30b1bc86SAndrew Jones 23*30b1bc86SAndrew Jones #ifndef __ASSEMBLY__ 24*30b1bc86SAndrew Jones 25*30b1bc86SAndrew Jones #define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE) 26*30b1bc86SAndrew Jones 27*30b1bc86SAndrew Jones #include <alloc.h> 28*30b1bc86SAndrew Jones 29*30b1bc86SAndrew Jones typedef u64 pteval_t; 30*30b1bc86SAndrew Jones typedef u64 pmdval_t; 31*30b1bc86SAndrew Jones typedef u64 pudval_t; 32*30b1bc86SAndrew Jones typedef u64 pgdval_t; 33*30b1bc86SAndrew Jones typedef struct { pteval_t pte; } pte_t; 34*30b1bc86SAndrew Jones typedef struct { pgdval_t pgd; } pgd_t; 35*30b1bc86SAndrew Jones typedef struct { pteval_t pgprot; } pgprot_t; 36*30b1bc86SAndrew Jones 37*30b1bc86SAndrew Jones #define pte_val(x) ((x).pte) 38*30b1bc86SAndrew Jones #define pgd_val(x) ((x).pgd) 39*30b1bc86SAndrew Jones #define pgprot_val(x) ((x).pgprot) 40*30b1bc86SAndrew Jones 41*30b1bc86SAndrew Jones #define __pte(x) ((pte_t) { (x) } ) 42*30b1bc86SAndrew Jones #define __pgd(x) ((pgd_t) { (x) } ) 43*30b1bc86SAndrew Jones #define __pgprot(x) ((pgprot_t) { (x) } ) 44*30b1bc86SAndrew Jones 45*30b1bc86SAndrew Jones typedef struct { pgd_t pgd; } pud_t; 46*30b1bc86SAndrew Jones #define pud_val(x) (pgd_val((x).pgd)) 47*30b1bc86SAndrew Jones #define __pud(x) ((pud_t) { __pgd(x) } ) 48*30b1bc86SAndrew Jones 49*30b1bc86SAndrew Jones typedef struct { pud_t pud; } pmd_t; 50*30b1bc86SAndrew Jones #define pmd_val(x) (pud_val((x).pud)) 51*30b1bc86SAndrew Jones #define __pmd(x) ((pmd_t) { __pud(x) } ) 52*30b1bc86SAndrew Jones 53*30b1bc86SAndrew Jones #ifndef __virt_to_phys 54*30b1bc86SAndrew Jones #define __phys_to_virt(x) ((unsigned long) (x)) 55*30b1bc86SAndrew Jones #define __virt_to_phys(x) (x) 56*30b1bc86SAndrew Jones #endif 57*30b1bc86SAndrew Jones 58*30b1bc86SAndrew Jones #define __va(x) ((void *)__phys_to_virt((phys_addr_t)(x))) 59*30b1bc86SAndrew Jones #define __pa(x) __virt_to_phys((unsigned long)(x)) 60*30b1bc86SAndrew Jones 61*30b1bc86SAndrew Jones #define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT) 62*30b1bc86SAndrew Jones #define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT) 63*30b1bc86SAndrew Jones 64*30b1bc86SAndrew Jones #endif /* !__ASSEMBLY__ */ 65*30b1bc86SAndrew Jones #endif /* _ASMARM64_PAGE_H_ */ 66