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#ifndef _ASM_POWERPC_PGALLOC_32_H
#define _ASM_POWERPC_PGALLOC_32_H
#include <linux/threads.h>
/* For 32-bit, all levels of page tables are just drawn from get_free_page() */
#define MAX_PGTABLE_INDEX_SIZE 0
extern void __bad_pte(pmd_t *pmd);
extern pgd_t *pgd_alloc(struct mm_struct *mm);
extern void pgd_free(struct mm_struct *mm, 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(mm, x) do { } while (0)
#define __pmd_free_tlb(tlb,x,a) 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)
#define pmd_pgtable(pmd) pmd_page(pmd)
#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)lowmem_page_address(pte) | _PMD_PRESENT)
#define pmd_pgtable(pmd) pmd_page(pmd)
#endif
extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
extern pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr);
static inline void pgtable_free(void *table, unsigned index_size)
{
BUG_ON(index_size); /* 32-bit doesn't use this */
free_page((unsigned long)table);
}
#define check_pgt_cache() do { } while (0)
#endif /* _ASM_POWERPC_PGALLOC_32_H */
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