/* * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2008-2009 PetaLogix * 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_PGALLOC_H#define _ASM_MICROBLAZE_PGALLOC_H #ifdef CONFIG_MMU #include <linux/kernel.h>	/* For min/max macros */#include <linux/highmem.h>#include <asm/setup.h>#include <asm/io.h>#include <asm/page.h>#include <asm/cache.h>#include <asm/pgtable.h> #define __HAVE_ARCH_PTE_ALLOC_ONE_KERNEL#include <asm-generic/pgalloc.h> extern void __bad_pte(pmd_t *pmd); static inline pgd_t *get_pgd(void){	return (pgd_t *)__get_free_pages(GFP_KERNEL|__GFP_ZERO, 0);} static inline void free_pgd(pgd_t *pgd){	free_page((unsigned long)pgd);} #define pgd_free(mm, pgd)	free_pgd(pgd)#define pgd_alloc(mm)		get_pgd() #define pmd_pgtable(pmd)	pmd_page(pmd) /* * We don't have any real pmd's, and this code never triggers because * the pgd will always be present.. */#define pmd_alloc_one_fast(mm, address)	({ BUG(); ((pmd_t *)1); })#define pmd_alloc_one(mm, address)	({ BUG(); ((pmd_t *)2); }) extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm); #define __pte_free_tlb(tlb, pte, addr)	pte_free((tlb)->mm, (pte)) #define pmd_populate(mm, pmd, pte) \			(pmd_val(*(pmd)) = (unsigned long)page_address(pte)) #define pmd_populate_kernel(mm, pmd, pte) \		(pmd_val(*(pmd)) = (unsigned long) (pte)) /* * We don't have any real pmd's, and this code never triggers because * the pgd will always be present.. */#define pmd_alloc_one(mm, address)	({ BUG(); ((pmd_t *)2); })#define pmd_free(mm, x)			do { } while (0)#define __pmd_free_tlb(tlb, x, addr)	pmd_free((tlb)->mm, x)#define pgd_populate(mm, pmd, pte)	BUG() #endif /* CONFIG_MMU */ #endif /* _ASM_MICROBLAZE_PGALLOC_H */