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