mirror of
https://github.com/torvalds/linux.git
synced 2024-12-15 15:41:58 +00:00
1da177e4c3
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!
63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
#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))
|
|
|
|
/*
|
|
* Allocate and free page tables.
|
|
*/
|
|
|
|
extern inline pgd_t *pgd_alloc (struct mm_struct *mm)
|
|
{
|
|
return (pgd_t *)get_zeroed_page(GFP_KERNEL);
|
|
}
|
|
|
|
extern inline void pgd_free (pgd_t *pgd)
|
|
{
|
|
free_page((unsigned long)pgd);
|
|
}
|
|
|
|
extern 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;
|
|
}
|
|
|
|
extern inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
|
|
{
|
|
struct page *pte;
|
|
pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
|
|
return pte;
|
|
}
|
|
|
|
extern inline void pte_free_kernel(pte_t *pte)
|
|
{
|
|
free_page((unsigned long)pte);
|
|
}
|
|
|
|
extern inline void pte_free(struct page *pte)
|
|
{
|
|
__free_page(pte);
|
|
}
|
|
|
|
|
|
#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte))
|
|
|
|
/*
|
|
* We don't have any real pmd's, and this code never triggers because
|
|
* the pgd will always be present..
|
|
*/
|
|
|
|
#define pmd_alloc_one(mm, addr) ({ BUG(); ((pmd_t *)2); })
|
|
#define pmd_free(x) do { } while (0)
|
|
#define __pmd_free_tlb(tlb,x) do { } while (0)
|
|
#define pgd_populate(mm, pmd, pte) BUG()
|
|
|
|
#define check_pgt_cache() do { } while (0)
|
|
|
|
#endif
|