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1da177e4 | 1 | /* |
9a0f78f6 | 2 | * TLB shootdown specifics for powerpc |
1da177e4 | 3 | * |
9a0f78f6 | 4 | * Copyright (C) 2002 Anton Blanchard, IBM Corp. |
1da177e4 LT |
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 | */ | |
9a0f78f6 SR |
12 | #ifndef _ASM_POWERPC_TLB_H |
13 | #define _ASM_POWERPC_TLB_H | |
1da177e4 LT |
14 | |
15 | #include <linux/config.h> | |
9a0f78f6 | 16 | #ifndef __powerpc64__ |
1da177e4 | 17 | #include <asm/pgtable.h> |
9a0f78f6 | 18 | #endif |
1da177e4 LT |
19 | #include <asm/pgalloc.h> |
20 | #include <asm/tlbflush.h> | |
9a0f78f6 | 21 | #ifndef __powerpc64__ |
1da177e4 LT |
22 | #include <asm/page.h> |
23 | #include <asm/mmu.h> | |
9a0f78f6 | 24 | #endif |
1da177e4 LT |
25 | |
26 | struct mmu_gather; | |
9a0f78f6 SR |
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 | ||
37 | extern void pte_free_finish(void); | |
38 | ||
39 | static inline void tlb_flush(struct mmu_gather *tlb) | |
40 | { | |
41 | flush_tlb_pending(); | |
42 | pte_free_finish(); | |
43 | } | |
44 | ||
45 | #else | |
46 | ||
1da177e4 LT |
47 | extern void tlb_flush(struct mmu_gather *tlb); |
48 | ||
9a0f78f6 SR |
49 | #endif |
50 | ||
1da177e4 LT |
51 | /* Get the generic bits... */ |
52 | #include <asm-generic/tlb.h> | |
53 | ||
9a0f78f6 SR |
54 | #if !defined(CONFIG_PPC_STD_MMU) || defined(__powerpc64__) |
55 | ||
56 | #define __tlb_remove_tlb_entry(tlb, pte, address) do { } while (0) | |
1da177e4 | 57 | |
9a0f78f6 | 58 | #else |
1da177e4 LT |
59 | extern void flush_hash_entry(struct mm_struct *mm, pte_t *ptep, |
60 | unsigned long address); | |
61 | ||
62 | static 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 | ||
9a0f78f6 SR |
69 | #endif |
70 | #endif /* __ASM_POWERPC_TLB_H */ |