#ifdef __KERNEL__#ifndef _PPC_PGALLOC_H#define _PPC_PGALLOC_H #include <linux/config.h>#include <linux/threads.h> extern void __bad_pte(pmd_t *pmd); extern pgd_t *pgd_alloc(struct mm_struct *mm);extern void pgd_free(pgd_t *pgd); /* * 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(x)                     do { } while (0)#define __pmd_free_tlb(tlb,x)		do { } while (0)#define pgd_populate(mm, pmd, pte)      BUG() #ifndef CONFIG_BOOKE#define pmd_populate_kernel(mm, pmd, pte)	\		(pmd_val(*(pmd)) = __pa(pte) | _PMD_PRESENT)#define pmd_populate(mm, pmd, pte)	\		(pmd_val(*(pmd)) = (page_to_pfn(pte) << PAGE_SHIFT) | _PMD_PRESENT)#else#define pmd_populate_kernel(mm, pmd, pte)	\		(pmd_val(*(pmd)) = (unsigned long)pte | _PMD_PRESENT)#define pmd_populate(mm, pmd, pte)	\		(pmd_val(*(pmd)) = (unsigned long)page_to_virt(pte) | _PMD_PRESENT)#endif extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);extern struct page *pte_alloc_one(struct mm_struct *mm, unsigned long addr);extern void pte_free_kernel(pte_t *pte);extern void pte_free(struct page *pte); #define __pte_free_tlb(tlb, pte)	pte_free((pte)) #define check_pgt_cache()	do { } while (0) #endif /* _PPC_PGALLOC_H */#endif /* __KERNEL__ */