1#ifndef _MOTOROLA_PGALLOC_H
2#define _MOTOROLA_PGALLOC_H
3
4#include <asm/tlb.h>
5#include <asm/tlbflush.h>
6
7extern pmd_t *get_pointer_table(void);
8extern int free_pointer_table(pmd_t *);
9
10
11static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
12{
13	pte_t *pte;
14
15	pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
16	if (pte) {
17		__flush_page_to_ram(pte);
18		flush_tlb_kernel_page(pte);
19		nocache_page(pte);
20	}
21
22	return pte;
23}
24
25static inline void pte_free_kernel(pte_t *pte)
26{
27	cache_page(pte);
28	free_page((unsigned long) pte);
29}
30
31static inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
32{
33	struct page *page = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
34	pte_t *pte;
35
36	if(!page)
37		return NULL;
38
39	pte = kmap(page);
40	if (pte) {
41		__flush_page_to_ram(pte);
42		flush_tlb_kernel_page(pte);
43		nocache_page(pte);
44	}
45	kunmap(pte);
46
47	return page;
48}
49
50static inline void pte_free(struct page *page)
51{
52	cache_page(kmap(page));
53	kunmap(page);
54	__free_page(page);
55}
56
57static inline void __pte_free_tlb(struct mmu_gather *tlb, struct page *page)
58{
59	cache_page(kmap(page));
60	kunmap(page);
61	__free_page(page);
62}
63
64
65static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
66{
67	return get_pointer_table();
68}
69
70static inline int pmd_free(pmd_t *pmd)
71{
72	return free_pointer_table(pmd);
73}
74
75static inline int __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
76{
77	return free_pointer_table(pmd);
78}
79
80
81static inline void pgd_free(pgd_t *pgd)
82{
83	pmd_free((pmd_t *)pgd);
84}
85
86static inline pgd_t *pgd_alloc(struct mm_struct *mm)
87{
88	return (pgd_t *)get_pointer_table();
89}
90
91
92static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
93{
94	pmd_set(pmd, pte);
95}
96
97static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *page)
98{
99	pmd_set(pmd, page_address(page));
100}
101
102static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
103{
104	pgd_set(pgd, pmd);
105}
106
107#endif /* _MOTOROLA_PGALLOC_H */
108