Linux kernel mirror (for testing)
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linux
1#ifndef _ASM_POWERPC_PGALLOC_32_H
2#define _ASM_POWERPC_PGALLOC_32_H
3
4#include <linux/threads.h>
5
6extern void __bad_pte(pmd_t *pmd);
7
8extern pgd_t *pgd_alloc(struct mm_struct *mm);
9extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
10
11/*
12 * We don't have any real pmd's, and this code never triggers because
13 * the pgd will always be present..
14 */
15/* #define pmd_alloc_one(mm,address) ({ BUG(); ((pmd_t *)2); }) */
16#define pmd_free(mm, x) do { } while (0)
17#define __pmd_free_tlb(tlb,x) do { } while (0)
18/* #define pgd_populate(mm, pmd, pte) BUG() */
19
20#ifndef CONFIG_BOOKE
21#define pmd_populate_kernel(mm, pmd, pte) \
22 (pmd_val(*(pmd)) = __pa(pte) | _PMD_PRESENT)
23#define pmd_populate(mm, pmd, pte) \
24 (pmd_val(*(pmd)) = (page_to_pfn(pte) << PAGE_SHIFT) | _PMD_PRESENT)
25#define pmd_pgtable(pmd) pmd_page(pmd)
26#else
27#define pmd_populate_kernel(mm, pmd, pte) \
28 (pmd_val(*(pmd)) = (unsigned long)pte | _PMD_PRESENT)
29#define pmd_populate(mm, pmd, pte) \
30 (pmd_val(*(pmd)) = (unsigned long)lowmem_page_address(pte) | _PMD_PRESENT)
31#define pmd_pgtable(pmd) pmd_page(pmd)
32#endif
33
34extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
35extern pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr);
36extern void pte_free_kernel(struct mm_struct *mm, pte_t *pte);
37extern void pte_free(struct mm_struct *mm, pgtable_t pte);
38
39#define __pte_free_tlb(tlb, pte) pte_free((tlb)->mm, (pte))
40
41#define check_pgt_cache() do { } while (0)
42
43#endif /* _ASM_POWERPC_PGALLOC_32_H */