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
 10static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
 11{
 12	pte_t *pte;
 13
 14	pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
 15	if (pte) {
 16		__flush_page_to_ram(pte);
 17		flush_tlb_kernel_page(pte);
 18		nocache_page(pte);
 19	}
 20
 21	return pte;
 22}
 23
 24static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 25{
 26	cache_page(pte);
 27	free_page((unsigned long) pte);
 28}
 29
 30static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
 31{
 32	struct page *page = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
 33	pte_t *pte;
 34
 35	if(!page)
 36		return NULL;
 37
 38	pte = kmap(page);
 39	__flush_page_to_ram(pte);
 40	flush_tlb_kernel_page(pte);
 41	nocache_page(pte);
 42	kunmap(page);
 43	pgtable_page_ctor(page);
 44	return page;
 45}
 46
 47static inline void pte_free(struct mm_struct *mm, pgtable_t page)
 48{
 49	pgtable_page_dtor(page);
 50	cache_page(kmap(page));
 51	kunmap(page);
 52	__free_page(page);
 53}
 54
 55static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page,
 56				  unsigned long address)
 57{
 58	pgtable_page_dtor(page);
 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(struct mm_struct *mm, 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				 unsigned long address)
 77{
 78	return free_pointer_table(pmd);
 79}
 80
 81
 82static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 83{
 84	pmd_free(mm, (pmd_t *)pgd);
 85}
 86
 87static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 88{
 89	return (pgd_t *)get_pointer_table();
 90}
 91
 92
 93static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
 94{
 95	pmd_set(pmd, pte);
 96}
 97
 98static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t page)
 99{
100	pmd_set(pmd, page_address(page));
101}
102#define pmd_pgtable(pmd) pmd_page(pmd)
103
104static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
105{
106	pgd_set(pgd, pmd);
107}
108
109#endif /* _MOTOROLA_PGALLOC_H */