1 #ifndef _ASMARM_PAGE_H_ 2 #define _ASMARM_PAGE_H_ 3 /* 4 * Copyright (C) 2014, Red Hat Inc, Andrew Jones <drjones@redhat.com> 5 * 6 * This work is licensed under the terms of the GNU LGPL, version 2. 7 */ 8 9 #include <linux/const.h> 10 11 #define PAGE_SHIFT 12 12 #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) 13 #define PAGE_MASK (~(PAGE_SIZE-1)) 14 15 #ifndef __ASSEMBLY__ 16 17 #define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE) 18 19 typedef u64 pteval_t; 20 typedef u64 pmdval_t; 21 typedef u64 pgdval_t; 22 typedef struct { pteval_t pte; } pte_t; 23 typedef struct { pmdval_t pmd; } pmd_t; 24 typedef struct { pgdval_t pgd; } pgd_t; 25 typedef struct { pteval_t pgprot; } pgprot_t; 26 27 #define pte_val(x) ((x).pte) 28 #define pmd_val(x) ((x).pmd) 29 #define pgd_val(x) ((x).pgd) 30 #define pgprot_val(x) ((x).pgprot) 31 32 #define __pte(x) ((pte_t) { (x) } ) 33 #define __pmd(x) ((pmd_t) { (x) } ) 34 #define __pgd(x) ((pgd_t) { (x) } ) 35 #define __pgprot(x) ((pgprot_t) { (x) } ) 36 37 #define __va(x) ((void *)__phys_to_virt((phys_addr_t)(x))) 38 #define __pa(x) __virt_to_phys((unsigned long)(x)) 39 40 #define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT) 41 #define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT) 42 43 extern phys_addr_t __virt_to_phys(unsigned long addr); 44 extern unsigned long __phys_to_virt(phys_addr_t addr); 45 46 #endif /* !__ASSEMBLY__ */ 47 #endif /* _ASMARM_PAGE_H_ */ 48