xref: /kvm-unit-tests/lib/arm/asm/page.h (revision f02b6363de4a34d6873f7041d2a8d7f35f177e16)
1fd33143eSAndrew Jones #ifndef _ASMARM_PAGE_H_
2fd33143eSAndrew Jones #define _ASMARM_PAGE_H_
3fd33143eSAndrew Jones /*
4fd33143eSAndrew Jones  * Copyright (C) 2014, Red Hat Inc, Andrew Jones <drjones@redhat.com>
5fd33143eSAndrew Jones  *
6fd33143eSAndrew Jones  * This work is licensed under the terms of the GNU LGPL, version 2.
7fd33143eSAndrew Jones  */
8fd33143eSAndrew Jones 
9f3bd1e05SAndrew Jones #include <linux/const.h>
1009121d03SAndrew Jones 
11fd33143eSAndrew Jones #define PAGE_SHIFT		12
1209121d03SAndrew Jones #define PAGE_SIZE		(_AC(1,UL) << PAGE_SHIFT)
13fd33143eSAndrew Jones #define PAGE_MASK		(~(PAGE_SIZE-1))
14fd33143eSAndrew Jones 
15fd33143eSAndrew Jones #ifndef __ASSEMBLY__
1609121d03SAndrew Jones 
1709121d03SAndrew Jones #define PAGE_ALIGN(addr)	ALIGN(addr, PAGE_SIZE)
1809121d03SAndrew Jones 
197a693feeSAndrew Jones typedef u64 pteval_t;
207a693feeSAndrew Jones typedef u64 pmdval_t;
217a693feeSAndrew Jones typedef u64 pgdval_t;
227a693feeSAndrew Jones typedef struct { pteval_t pte; } pte_t;
237a693feeSAndrew Jones typedef struct { pmdval_t pmd; } pmd_t;
247a693feeSAndrew Jones typedef struct { pgdval_t pgd; } pgd_t;
257a693feeSAndrew Jones typedef struct { pteval_t pgprot; } pgprot_t;
267a693feeSAndrew Jones 
277a693feeSAndrew Jones #define pte_val(x)		((x).pte)
287a693feeSAndrew Jones #define pmd_val(x)		((x).pmd)
297a693feeSAndrew Jones #define pgd_val(x)		((x).pgd)
307a693feeSAndrew Jones #define pgprot_val(x)		((x).pgprot)
317a693feeSAndrew Jones 
327a693feeSAndrew Jones #define __pte(x)		((pte_t) { (x) } )
337a693feeSAndrew Jones #define __pmd(x)		((pmd_t) { (x) } )
347a693feeSAndrew Jones #define __pgd(x)		((pgd_t) { (x) } )
357a693feeSAndrew Jones #define __pgprot(x)		((pgprot_t) { (x) } )
367a693feeSAndrew Jones 
37fd33143eSAndrew Jones #define __va(x)			((void *)__phys_to_virt((phys_addr_t)(x)))
38fd33143eSAndrew Jones #define __pa(x)			__virt_to_phys((unsigned long)(x))
39fd33143eSAndrew Jones 
40fd33143eSAndrew Jones #define virt_to_pfn(kaddr)	(__pa(kaddr) >> PAGE_SHIFT)
41fd33143eSAndrew Jones #define pfn_to_virt(pfn)	__va((pfn) << PAGE_SHIFT)
42fd33143eSAndrew Jones 
43*f02b6363SAndrew Jones extern phys_addr_t __virt_to_phys(unsigned long addr);
44*f02b6363SAndrew Jones extern unsigned long __phys_to_virt(phys_addr_t addr);
45*f02b6363SAndrew Jones 
4662e6e986SAndrew Jones #endif /* !__ASSEMBLY__ */
4709121d03SAndrew Jones #endif /* _ASMARM_PAGE_H_ */
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