linux-stable/include/asm-m68k/motorola_pgalloc.h
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

107 lines
2 KiB
C

#ifndef _MOTOROLA_PGALLOC_H
#define _MOTOROLA_PGALLOC_H
#include <asm/tlb.h>
#include <asm/tlbflush.h>
extern pmd_t *get_pointer_table(void);
extern int free_pointer_table(pmd_t *);
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
{
pte_t *pte;
pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
if (pte) {
__flush_page_to_ram(pte);
flush_tlb_kernel_page(pte);
nocache_page(pte);
}
return pte;
}
static inline void pte_free_kernel(pte_t *pte)
{
cache_page(pte);
free_page((unsigned long) pte);
}
static inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
{
struct page *page = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
pte_t *pte;
if(!page)
return NULL;
pte = kmap(page);
if (pte) {
__flush_page_to_ram(pte);
flush_tlb_kernel_page(pte);
nocache_page(pte);
}
kunmap(pte);
return page;
}
static inline void pte_free(struct page *page)
{
cache_page(kmap(page));
kunmap(page);
__free_page(page);
}
static inline void __pte_free_tlb(struct mmu_gather *tlb, struct page *page)
{
cache_page(kmap(page));
kunmap(page);
__free_page(page);
}
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
{
return get_pointer_table();
}
static inline int pmd_free(pmd_t *pmd)
{
return free_pointer_table(pmd);
}
static inline int __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
{
return free_pointer_table(pmd);
}
static inline void pgd_free(pgd_t *pgd)
{
pmd_free((pmd_t *)pgd);
}
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
return (pgd_t *)get_pointer_table();
}
static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
{
pmd_set(pmd, pte);
}
static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *page)
{
pmd_set(pmd, page_address(page));
}
static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
{
pgd_set(pgd, pmd);
}
#endif /* _MOTOROLA_PGALLOC_H */