1#ifndef _CRIS_PGALLOC_H
2#define _CRIS_PGALLOC_H
3
4#include <linux/threads.h>
5#include <linux/mm.h>
6
7#define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, pte)
8#define pmd_populate(mm, pmd, pte) pmd_set(pmd, page_address(pte))
9#define pmd_pgtable(pmd) pmd_page(pmd)
10
11/*
12 * Allocate and free page tables.
13 */
14
15static inline pgd_t *pgd_alloc (struct mm_struct *mm)
16{
17	return (pgd_t *)get_zeroed_page(GFP_KERNEL);
18}
19
20static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
21{
22	free_page((unsigned long)pgd);
23}
24
25static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
26{
27  	pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
28 	return pte;
29}
30
31static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
32{
33	struct page *pte;
34	pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
35	if (!pte)
36		return NULL;
37	if (!pgtable_page_ctor(pte)) {
38		__free_page(pte);
39		return NULL;
40	}
41	return pte;
42}
43
44static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
45{
46	free_page((unsigned long)pte);
47}
48
49static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
50{
51	pgtable_page_dtor(pte);
52	__free_page(pte);
53}
54
55#define __pte_free_tlb(tlb,pte,address)			\
56do {							\
57	pgtable_page_dtor(pte);				\
58	tlb_remove_page((tlb), pte);			\
59} while (0)
60
61#define check_pgt_cache()          do { } while (0)
62
63#endif
64