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review.evervolv.com / android_kernel_oneplus_msm8996 / a2826190aa157a1d29bef70ca81f8b51a9b36d29 / . / include / asm-powerpc / pgalloc-32.h
blob: 58c07147b3ea445c17851c8cb5ab8489a6432805 [file] [log] [blame]
David Gibsonf88df142007-04-30 16:30:56 +1000[diff] [blame]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);
Benjamin Herrenschmidt5e541972008-02-04 22:29:14 -0800[diff] [blame]9extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
David Gibsonf88df142007-04-30 16:30:56 +1000[diff] [blame]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 */
David Gibsond1953c82007-05-08 12:46:49 +1000[diff] [blame]15/* #define pmd_alloc_one(mm,address) ({ BUG(); ((pmd_t *)2); }) */
Benjamin Herrenschmidt5e541972008-02-04 22:29:14 -0800[diff] [blame]16#define pmd_free(mm, x) do { } while (0)
David Gibsonf88df142007-04-30 16:30:56 +1000[diff] [blame]17#define __pmd_free_tlb(tlb,x) do { } while (0)
David Gibsond1953c82007-05-08 12:46:49 +1000[diff] [blame]18/* #define pgd_populate(mm, pmd, pte) BUG() */
David Gibsonf88df142007-04-30 16:30:56 +1000[diff] [blame]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)
Martin Schwidefsky2f569af2008-02-08 04:22:04 -0800[diff] [blame]25#define pmd_pgtable(pmd) pmd_page(pmd)
David Gibsonf88df142007-04-30 16:30:56 +1000[diff] [blame]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)
Martin Schwidefsky2f569af2008-02-08 04:22:04 -0800[diff] [blame]31#define pmd_pgtable(pmd) pmd_page(pmd)
David Gibsonf88df142007-04-30 16:30:56 +1000[diff] [blame]32#endif
33
34extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
Martin Schwidefsky2f569af2008-02-08 04:22:04 -0800[diff] [blame]35extern pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr);
Benjamin Herrenschmidt5e541972008-02-04 22:29:14 -0800[diff] [blame]36extern void pte_free_kernel(struct mm_struct *mm, pte_t *pte);
Martin Schwidefsky2f569af2008-02-08 04:22:04 -0800[diff] [blame]37extern void pte_free(struct mm_struct *mm, pgtable_t pte);
David Gibsonf88df142007-04-30 16:30:56 +1000[diff] [blame]38
Benjamin Herrenschmidt5e541972008-02-04 22:29:14 -0800[diff] [blame]39#define __pte_free_tlb(tlb, pte) pte_free((tlb)->mm, (pte))
David Gibsonf88df142007-04-30 16:30:56 +1000[diff] [blame]40
41#define check_pgt_cache() do { } while (0)
42
43#endif /* _ASM_POWERPC_PGALLOC_32_H */