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authorPaul Mackerras <paulus@samba.org>2005-11-04 01:03:39 -0500
committerPaul Mackerras <paulus@samba.org>2005-11-04 01:03:39 -0500
commitc3df69cd854551cf70e9c63aa509c26621084f60 (patch)
tree4d650a6939045e103734d72712877088cf1d3258 /include/asm-ppc
parent292a6c58e9133b57d004d92a846fff326dd31e92 (diff)
parent1970282f3b453b7aac3b192a44705dcb5277fd82 (diff)
Merge git://oak/home/sfr/kernels/iseries/work
Diffstat (limited to 'include/asm-ppc')
-rw-r--r--include/asm-ppc/tlb.h57
-rw-r--r--include/asm-ppc/tlbflush.h115
2 files changed, 0 insertions, 172 deletions
diff --git a/include/asm-ppc/tlb.h b/include/asm-ppc/tlb.h
deleted file mode 100644
index 2c142c5d8584..000000000000
--- a/include/asm-ppc/tlb.h
+++ /dev/null
@@ -1,57 +0,0 @@
1/*
2 * TLB shootdown specifics for PPC
3 *
4 * Copyright (C) 2002 Paul Mackerras, IBM Corp.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11#ifndef _PPC_TLB_H
12#define _PPC_TLB_H
13
14#include <linux/config.h>
15#include <asm/pgtable.h>
16#include <asm/pgalloc.h>
17#include <asm/tlbflush.h>
18#include <asm/page.h>
19#include <asm/mmu.h>
20
21#ifdef CONFIG_PPC_STD_MMU
22/* Classic PPC with hash-table based MMU... */
23
24struct mmu_gather;
25extern void tlb_flush(struct mmu_gather *tlb);
26
27/* Get the generic bits... */
28#include <asm-generic/tlb.h>
29
30/* Nothing needed here in fact... */
31#define tlb_start_vma(tlb, vma) do { } while (0)
32#define tlb_end_vma(tlb, vma) do { } while (0)
33
34extern void flush_hash_entry(struct mm_struct *mm, pte_t *ptep,
35 unsigned long address);
36
37static inline void __tlb_remove_tlb_entry(struct mmu_gather *tlb, pte_t *ptep,
38 unsigned long address)
39{
40 if (pte_val(*ptep) & _PAGE_HASHPTE)
41 flush_hash_entry(tlb->mm, ptep, address);
42}
43
44#else
45/* Embedded PPC with software-loaded TLB, very simple... */
46
47#define tlb_start_vma(tlb, vma) do { } while (0)
48#define tlb_end_vma(tlb, vma) do { } while (0)
49#define __tlb_remove_tlb_entry(tlb, pte, address) do { } while (0)
50#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
51
52/* Get the generic bits... */
53#include <asm-generic/tlb.h>
54
55#endif /* CONFIG_PPC_STD_MMU */
56
57#endif /* __PPC_TLB_H */
diff --git a/include/asm-ppc/tlbflush.h b/include/asm-ppc/tlbflush.h
deleted file mode 100644
index 9afee4ffc835..000000000000
--- a/include/asm-ppc/tlbflush.h
+++ /dev/null
@@ -1,115 +0,0 @@
1/*
2 * include/asm-ppc/tlbflush.h
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 */
9#ifdef __KERNEL__
10#ifndef _PPC_TLBFLUSH_H
11#define _PPC_TLBFLUSH_H
12
13#include <linux/config.h>
14#include <linux/mm.h>
15
16extern void _tlbie(unsigned long address);
17extern void _tlbia(void);
18
19#if defined(CONFIG_4xx)
20
21#ifndef CONFIG_44x
22#define __tlbia() asm volatile ("sync; tlbia; isync" : : : "memory")
23#else
24#define __tlbia _tlbia
25#endif
26
27static inline void flush_tlb_mm(struct mm_struct *mm)
28 { __tlbia(); }
29static inline void flush_tlb_page(struct vm_area_struct *vma,
30 unsigned long vmaddr)
31 { _tlbie(vmaddr); }
32static inline void flush_tlb_page_nohash(struct vm_area_struct *vma,
33 unsigned long vmaddr)
34 { _tlbie(vmaddr); }
35static inline void flush_tlb_range(struct vm_area_struct *vma,
36 unsigned long start, unsigned long end)
37 { __tlbia(); }
38static inline void flush_tlb_kernel_range(unsigned long start,
39 unsigned long end)
40 { __tlbia(); }
41
42#elif defined(CONFIG_FSL_BOOKE)
43
44/* TODO: determine if flush_tlb_range & flush_tlb_kernel_range
45 * are best implemented as tlbia vs specific tlbie's */
46
47#define __tlbia() _tlbia()
48
49static inline void flush_tlb_mm(struct mm_struct *mm)
50 { __tlbia(); }
51static inline void flush_tlb_page(struct vm_area_struct *vma,
52 unsigned long vmaddr)
53 { _tlbie(vmaddr); }
54static inline void flush_tlb_page_nohash(struct vm_area_struct *vma,
55 unsigned long vmaddr)
56 { _tlbie(vmaddr); }
57static inline void flush_tlb_range(struct vm_area_struct *vma,
58 unsigned long start, unsigned long end)
59 { __tlbia(); }
60static inline void flush_tlb_kernel_range(unsigned long start,
61 unsigned long end)
62 { __tlbia(); }
63
64#elif defined(CONFIG_8xx)
65#define __tlbia() asm volatile ("tlbia; sync" : : : "memory")
66
67static inline void flush_tlb_mm(struct mm_struct *mm)
68 { __tlbia(); }
69static inline void flush_tlb_page(struct vm_area_struct *vma,
70 unsigned long vmaddr)
71 { _tlbie(vmaddr); }
72static inline void flush_tlb_page_nohash(struct vm_area_struct *vma,
73 unsigned long vmaddr)
74 { _tlbie(vmaddr); }
75static inline void flush_tlb_range(struct vm_area_struct *vma,
76 unsigned long start, unsigned long end)
77 { __tlbia(); }
78static inline void flush_tlb_kernel_range(unsigned long start,
79 unsigned long end)
80 { __tlbia(); }
81
82#else /* 6xx, 7xx, 7xxx cpus */
83struct mm_struct;
84struct vm_area_struct;
85extern void flush_tlb_mm(struct mm_struct *mm);
86extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
87extern void flush_tlb_page_nohash(struct vm_area_struct *vma, unsigned long addr);
88extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
89 unsigned long end);
90extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
91#endif
92
93/*
94 * This is called in munmap when we have freed up some page-table
95 * pages. We don't need to do anything here, there's nothing special
96 * about our page-table pages. -- paulus
97 */
98static inline void flush_tlb_pgtables(struct mm_struct *mm,
99 unsigned long start, unsigned long end)
100{
101}
102
103/*
104 * This gets called at the end of handling a page fault, when
105 * the kernel has put a new PTE into the page table for the process.
106 * We use it to ensure coherency between the i-cache and d-cache
107 * for the page which has just been mapped in.
108 * On machines which use an MMU hash table, we use this to put a
109 * corresponding HPTE into the hash table ahead of time, instead of
110 * waiting for the inevitable extra hash-table miss exception.
111 */
112extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t);
113
114#endif /* _PPC_TLBFLUSH_H */
115#endif /*__KERNEL__ */
generated by cgit v1.2.2 (git 2.25.0) at 2026-01-08 02:43:12 -0500