[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / asm-h8300 / page.h

#ifndef _H8300_PAGE_H
#define _H8300_PAGE_H

#ifdef __KERNEL__

/* PAGE_SHIFT determines the page size */

#define PAGE_SHIFT	(12)
#define PAGE_SIZE	(1UL << PAGE_SHIFT)
#define PAGE_MASK	(~(PAGE_SIZE-1))

#include <asm/setup.h>

#ifndef __ASSEMBLY__
 
#define get_user_page(vaddr)		__get_free_page(GFP_KERNEL)
#define free_user_page(page, addr)	free_page(addr)

#define clear_page(page)	memset((page), 0, PAGE_SIZE)
#define copy_page(to,from)	memcpy((to), (from), PAGE_SIZE)

#define clear_user_page(page, vaddr, pg)	clear_page(page)
#define copy_user_page(to, from, vaddr, pg)	copy_page(to, from)

#define alloc_zeroed_user_highpage(vma, vaddr) alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO, vma, vaddr)
#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE

/*
 * These are used to make use of C type-checking..
 */
typedef struct { unsigned long pte; } pte_t;
typedef struct { unsigned long pmd[16]; } pmd_t;
typedef struct { unsigned long pgd; } pgd_t;
typedef struct { unsigned long pgprot; } pgprot_t;

#define pte_val(x)	((x).pte)
#define pmd_val(x)	((&x)->pmd[0])
#define pgd_val(x)	((x).pgd)
#define pgprot_val(x)	((x).pgprot)

#define __pte(x)	((pte_t) { (x) } )
#define __pmd(x)	((pmd_t) { (x) } )
#define __pgd(x)	((pgd_t) { (x) } )
#define __pgprot(x)	((pgprot_t) { (x) } )

/* to align the pointer to the (next) page boundary */
#define PAGE_ALIGN(addr)	(((addr)+PAGE_SIZE-1)&PAGE_MASK)

extern unsigned long memory_start;
extern unsigned long memory_end;

#endif /* !__ASSEMBLY__ */

#include <asm/page_offset.h>

#define PAGE_OFFSET		(PAGE_OFFSET_RAW)

#ifndef __ASSEMBLY__

#define __pa(vaddr)		virt_to_phys(vaddr)
#define __va(paddr)		phys_to_virt((unsigned long)paddr)

#define virt_to_pfn(kaddr)	(__pa(kaddr) >> PAGE_SHIFT)
#define pfn_to_virt(pfn)	__va((pfn) << PAGE_SHIFT)

#define MAP_NR(addr)		(((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT)
#define virt_to_page(addr)	(mem_map + (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT))
#define page_to_virt(page)	((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET)
#define pfn_valid(page)	        (page < max_mapnr)

#define ARCH_PFN_OFFSET		(PAGE_OFFSET >> PAGE_SHIFT)

#define	virt_addr_valid(kaddr)	(((void *)(kaddr) >= (void *)PAGE_OFFSET) && \
				((void *)(kaddr) < (void *)memory_end))

#endif /* __ASSEMBLY__ */

#include <asm-generic/memory_model.h>
#include <asm-generic/page.h>

#endif /* __KERNEL__ */

#endif /* _H8300_PAGE_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _H8300_PAGE_H
	2	#define _H8300_PAGE_H
	3
0000f0b1	4	#ifdef __KERNEL__
1da177e4 LT	5
	6	/* PAGE_SHIFT determines the page size */
	7
	8	#define PAGE_SHIFT (12)
	9	#define PAGE_SIZE (1UL << PAGE_SHIFT)
	10	#define PAGE_MASK (~(PAGE_SIZE-1))
	11
1da177e4 LT	12	#include <asm/setup.h>
1da177e4 LT	13
1da177e4 LT	14	#ifndef __ASSEMBLY__
	15
	16	#define get_user_page(vaddr) __get_free_page(GFP_KERNEL)
	17	#define free_user_page(page, addr) free_page(addr)
	18
	19	#define clear_page(page) memset((page), 0, PAGE_SIZE)
	20	#define copy_page(to,from) memcpy((to), (from), PAGE_SIZE)
	21
	22	#define clear_user_page(page, vaddr, pg) clear_page(page)
	23	#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
	24
	25	#define alloc_zeroed_user_highpage(vma, vaddr) alloc_page_vma(GFP_HIGHUSER \| __GFP_ZERO, vma, vaddr)
	26	#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
	27
	28	/*
	29	* These are used to make use of C type-checking..
	30	*/
	31	typedef struct { unsigned long pte; } pte_t;
	32	typedef struct { unsigned long pmd[16]; } pmd_t;
	33	typedef struct { unsigned long pgd; } pgd_t;
	34	typedef struct { unsigned long pgprot; } pgprot_t;
	35
	36	#define pte_val(x) ((x).pte)
	37	#define pmd_val(x) ((&x)->pmd[0])
	38	#define pgd_val(x) ((x).pgd)
	39	#define pgprot_val(x) ((x).pgprot)
	40
	41	#define __pte(x) ((pte_t) { (x) } )
	42	#define __pmd(x) ((pmd_t) { (x) } )
	43	#define __pgd(x) ((pgd_t) { (x) } )
	44	#define __pgprot(x) ((pgprot_t) { (x) } )
	45
	46	/* to align the pointer to the (next) page boundary */
	47	#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
	48
1da177e4 LT	49	extern unsigned long memory_start;
	50	extern unsigned long memory_end;
	51
	52	#endif /* !__ASSEMBLY__ */
	53
	54	#include <asm/page_offset.h>
	55
	56	#define PAGE_OFFSET (PAGE_OFFSET_RAW)
	57
	58	#ifndef __ASSEMBLY__
	59
74ad74c1	60	#define __pa(vaddr) virt_to_phys(vaddr)
1da177e4 LT	61	#define __va(paddr) phys_to_virt((unsigned long)paddr)
	62
	63	#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT)
	64	#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT)
	65
	66	#define MAP_NR(addr) (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT)
	67	#define virt_to_page(addr) (mem_map + (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT))
1da177e4	68	#define page_to_virt(page) ((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET)
74ad74c1	69	#define pfn_valid(page) (page < max_mapnr)
1da177e4	70
dd6cc763	71	#define ARCH_PFN_OFFSET (PAGE_OFFSET >> PAGE_SHIFT)
1da177e4 LT	72
	73	#define virt_addr_valid(kaddr) (((void )(kaddr) >= (void )PAGE_OFFSET) && \
	74	((void )(kaddr) < (void )memory_end))
	75
	76	#endif /* __ASSEMBLY__ */
	77
dd6cc763	78	#include <asm-generic/memory_model.h>
fd4fd5aa SR	79	#include <asm-generic/page.h>
fd4fd5aa SR	80
0000f0b1 DW	81	#endif /* __KERNEL__ */
0000f0b1 DW	82
1da177e4	83	#endif /* _H8300_PAGE_H */