root/include/asm-cris/pgalloc.h

INCLUDED FROM

DEFINITIONS

1. pgd_alloc
2. pgd_free
3. pte_alloc_one_kernel
4. pte_alloc_one
5. pte_free_kernel
6. pte_free

#ifndef _CRIS_PGALLOC_H
#define _CRIS_PGALLOC_H

#include <linux/threads.h>
#include <linux/mm.h>

#define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, pte)
#define pmd_populate(mm, pmd, pte) pmd_set(pmd, page_address(pte))
#define pmd_pgtable(pmd) pmd_page(pmd)

/*
 * Allocate and free page tables.
 */

static inline pgd_t *pgd_alloc (struct mm_struct *mm)
{
        return (pgd_t *)get_zeroed_page(GFP_KERNEL);
}

static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
{
        free_page((unsigned long)pgd);
}

static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
{
        pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
        return pte;
}

static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
{
        struct page *pte;
        pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
        pgtable_page_ctor(pte);
        return pte;
}

static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
{
        free_page((unsigned long)pte);
}

static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
{
        pgtable_page_dtor(pte);
        __free_page(pte);
}

#define __pte_free_tlb(tlb,pte)                         \
do {                                                    \
        pgtable_page_dtor(pte);                         \
        tlb_remove_page((tlb), pte);                    \
} while (0)

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

#endif