[linux-2.6-block.git] / arch / microblaze / include / asm / pgtable.h

/*
 * Copyright (C) 2006 Atmark Techno, Inc.
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License. See the file "COPYING" in the main directory of this archive
 * for more details.
 */

#ifndef _ASM_MICROBLAZE_PGTABLE_H
#define _ASM_MICROBLAZE_PGTABLE_H

#include <asm/setup.h>

#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)		\
		remap_pfn_range(vma, vaddr, pfn, size, prot)

#define pgd_present(pgd)	(1) /* pages are always present on non MMU */
#define pgd_none(pgd)		(0)
#define pgd_bad(pgd)		(0)
#define pgd_clear(pgdp)
#define kern_addr_valid(addr)	(1)
#define	pmd_offset(a, b)	((void *) 0)

#define PAGE_NONE		__pgprot(0) /* these mean nothing to non MMU */
#define PAGE_SHARED		__pgprot(0) /* these mean nothing to non MMU */
#define PAGE_COPY		__pgprot(0) /* these mean nothing to non MMU */
#define PAGE_READONLY		__pgprot(0) /* these mean nothing to non MMU */
#define PAGE_KERNEL		__pgprot(0) /* these mean nothing to non MMU */

#define __swp_type(x)		(0)
#define __swp_offset(x)		(0)
#define __swp_entry(typ, off)	((swp_entry_t) { ((typ) | ((off) << 7)) })
#define __pte_to_swp_entry(pte)	((swp_entry_t) { pte_val(pte) })
#define __swp_entry_to_pte(x)	((pte_t) { (x).val })

#ifndef __ASSEMBLY__
static inline int pte_file(pte_t pte) { return 0; }
#endif /* __ASSEMBLY__ */

#define ZERO_PAGE(vaddr)	({ BUG(); NULL; })

#define swapper_pg_dir ((pgd_t *) NULL)

#define pgtable_cache_init()	do {} while (0)

#define arch_enter_lazy_cpu_mode()	do {} while (0)

#ifndef __ASSEMBLY__
#include <asm-generic/pgtable.h>

void setup_memory(void);
#endif /* __ASSEMBLY__ */

#endif /* _ASM_MICROBLAZE_PGTABLE_H */
Commit	Line	Data
6a3cece5 MS	1	/*
	2	* Copyright (C) 2006 Atmark Techno, Inc.
	3	*
	4	* This file is subject to the terms and conditions of the GNU General Public
	5	* License. See the file "COPYING" in the main directory of this archive
	6	* for more details.
	7	*/
	8
	9	#ifndef _ASM_MICROBLAZE_PGTABLE_H
	10	#define _ASM_MICROBLAZE_PGTABLE_H
	11
	12	#include <asm/setup.h>
	13
	14	#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \
	15	remap_pfn_range(vma, vaddr, pfn, size, prot)
	16
	17	#define pgd_present(pgd) (1) /* pages are always present on non MMU */
	18	#define pgd_none(pgd) (0)
	19	#define pgd_bad(pgd) (0)
	20	#define pgd_clear(pgdp)
	21	#define kern_addr_valid(addr) (1)
	22	#define pmd_offset(a, b) ((void *) 0)
	23
	24	#define PAGE_NONE __pgprot(0) /* these mean nothing to non MMU */
	25	#define PAGE_SHARED __pgprot(0) /* these mean nothing to non MMU */
	26	#define PAGE_COPY __pgprot(0) /* these mean nothing to non MMU */
	27	#define PAGE_READONLY __pgprot(0) /* these mean nothing to non MMU */
	28	#define PAGE_KERNEL __pgprot(0) /* these mean nothing to non MMU */
	29
	30	#define __swp_type(x) (0)
	31	#define __swp_offset(x) (0)
	32	#define __swp_entry(typ, off) ((swp_entry_t) { ((typ) \| ((off) << 7)) })
	33	#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
	34	#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
	35
	36	#ifndef __ASSEMBLY__
	37	static inline int pte_file(pte_t pte) { return 0; }
	38	#endif /* __ASSEMBLY__ */
	39
	40	#define ZERO_PAGE(vaddr) ({ BUG(); NULL; })
	41
	42	#define swapper_pg_dir ((pgd_t *) NULL)
	43
	44	#define pgtable_cache_init() do {} while (0)
	45
	46	#define arch_enter_lazy_cpu_mode() do {} while (0)
	47
	48	#ifndef __ASSEMBLY__
	49	#include <asm-generic/pgtable.h>
	50
	51	void setup_memory(void);
	52	#endif /* __ASSEMBLY__ */
	53
	54	#endif /* _ASM_MICROBLAZE_PGTABLE_H */