63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
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#ifndef _CRIS_PGALLOC_H
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#define _CRIS_PGALLOC_H
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#include <linux/threads.h>
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#include <linux/mm.h>
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#define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, pte)
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#define pmd_populate(mm, pmd, pte) pmd_set(pmd, page_address(pte))
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/*
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* Allocate and free page tables.
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*/
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extern inline pgd_t *pgd_alloc (struct mm_struct *mm)
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{
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return (pgd_t *)get_zeroed_page(GFP_KERNEL);
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}
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extern inline void pgd_free (pgd_t *pgd)
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{
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free_page((unsigned long)pgd);
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}
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extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
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{
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pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
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return pte;
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}
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extern inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
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{
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struct page *pte;
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pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
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return pte;
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}
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extern inline void pte_free_kernel(pte_t *pte)
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{
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free_page((unsigned long)pte);
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}
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extern inline void pte_free(struct page *pte)
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{
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__free_page(pte);
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}
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#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte))
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/*
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* We don't have any real pmd's, and this code never triggers because
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* the pgd will always be present..
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*/
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#define pmd_alloc_one(mm, addr) ({ BUG(); ((pmd_t *)2); })
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#define pmd_free(x) do { } while (0)
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#define __pmd_free_tlb(tlb,x) do { } while (0)
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#define pgd_populate(mm, pmd, pte) BUG()
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#define check_pgt_cache() do { } while (0)
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#endif
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