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Linux kernel mirror (for testing)
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kernel
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linux
1/*
2 * TLB shootdown specifics for powerpc
3 *
4 * Copyright (C) 2002 Anton Blanchard, IBM Corp.
5 * Copyright (C) 2002 Paul Mackerras, IBM Corp.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version
10 * 2 of the License, or (at your option) any later version.
11 */
12#ifndef _ASM_POWERPC_TLB_H
13#define _ASM_POWERPC_TLB_H
14#ifdef __KERNEL__
15
16#ifndef __powerpc64__
17#include <asm/pgtable.h>
18#endif
19#include <asm/pgalloc.h>
20#include <asm/tlbflush.h>
21#ifndef __powerpc64__
22#include <asm/page.h>
23#include <asm/mmu.h>
24#endif
25
26struct mmu_gather;
27
28#define tlb_start_vma(tlb, vma) do { } while (0)
29#define tlb_end_vma(tlb, vma) do { } while (0)
30
31#if !defined(CONFIG_PPC_STD_MMU)
32
33#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
34
35#elif defined(__powerpc64__)
36
37extern void pte_free_finish(void);
38
39static inline void tlb_flush(struct mmu_gather *tlb)
40{
41 flush_tlb_pending();
42 pte_free_finish();
43}
44
45#else
46
47extern void tlb_flush(struct mmu_gather *tlb);
48
49#endif
50
51/* Get the generic bits... */
52#include <asm-generic/tlb.h>
53
54#if !defined(CONFIG_PPC_STD_MMU) || defined(__powerpc64__)
55
56#define __tlb_remove_tlb_entry(tlb, pte, address) do { } while (0)
57
58#else
59extern void flush_hash_entry(struct mm_struct *mm, pte_t *ptep,
60 unsigned long address);
61
62static inline void __tlb_remove_tlb_entry(struct mmu_gather *tlb, pte_t *ptep,
63 unsigned long address)
64{
65 if (pte_val(*ptep) & _PAGE_HASHPTE)
66 flush_hash_entry(tlb->mm, ptep, address);
67}
68
69#endif
70#endif /* __KERNEL__ */
71#endif /* __ASM_POWERPC_TLB_H */