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Linux kernel mirror (for testing)
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linux
1#ifndef _ASM_POWERPC_TLBFLUSH_H
2#define _ASM_POWERPC_TLBFLUSH_H
3
4/*
5 * TLB flushing:
6 *
7 * - flush_tlb_mm(mm) flushes the specified mm context TLB's
8 * - flush_tlb_page(vma, vmaddr) flushes one page
9 * - local_flush_tlb_mm(mm, full) flushes the specified mm context on
10 * the local processor
11 * - local_flush_tlb_page(vma, vmaddr) flushes one page on the local processor
12 * - flush_tlb_page_nohash(vma, vmaddr) flushes one page if SW loaded TLB
13 * - flush_tlb_range(vma, start, end) flushes a range of pages
14 * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
15 *
16 * This program is free software; you can redistribute it and/or
17 * modify it under the terms of the GNU General Public License
18 * as published by the Free Software Foundation; either version
19 * 2 of the License, or (at your option) any later version.
20 */
21#ifdef __KERNEL__
22
23#ifdef CONFIG_PPC_MMU_NOHASH
24/*
25 * TLB flushing for software loaded TLB chips
26 *
27 * TODO: (CONFIG_FSL_BOOKE) determine if flush_tlb_range &
28 * flush_tlb_kernel_range are best implemented as tlbia vs
29 * specific tlbie's
30 */
31
32struct vm_area_struct;
33struct mm_struct;
34
35#define MMU_NO_CONTEXT ((unsigned int)-1)
36
37extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
38 unsigned long end);
39extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
40
41extern void local_flush_tlb_mm(struct mm_struct *mm);
42extern void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
43
44extern void __local_flush_tlb_page(struct mm_struct *mm, unsigned long vmaddr,
45 int tsize, int ind);
46
47#ifdef CONFIG_SMP
48extern void flush_tlb_mm(struct mm_struct *mm);
49extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
50extern void __flush_tlb_page(struct mm_struct *mm, unsigned long vmaddr,
51 int tsize, int ind);
52#else
53#define flush_tlb_mm(mm) local_flush_tlb_mm(mm)
54#define flush_tlb_page(vma,addr) local_flush_tlb_page(vma,addr)
55#define __flush_tlb_page(mm,addr,p,i) __local_flush_tlb_page(mm,addr,p,i)
56#endif
57#define flush_tlb_page_nohash(vma,addr) flush_tlb_page(vma,addr)
58
59#elif defined(CONFIG_PPC_STD_MMU_32)
60
61#define MMU_NO_CONTEXT (0)
62/*
63 * TLB flushing for "classic" hash-MMU 32-bit CPUs, 6xx, 7xx, 7xxx
64 */
65extern void flush_tlb_mm(struct mm_struct *mm);
66extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
67extern void flush_tlb_page_nohash(struct vm_area_struct *vma, unsigned long addr);
68extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
69 unsigned long end);
70extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
71static inline void local_flush_tlb_page(struct vm_area_struct *vma,
72 unsigned long vmaddr)
73{
74 flush_tlb_page(vma, vmaddr);
75}
76static inline void local_flush_tlb_mm(struct mm_struct *mm)
77{
78 flush_tlb_mm(mm);
79}
80
81#elif defined(CONFIG_PPC_STD_MMU_64)
82#include <asm/book3s/64/tlbflush.h>
83#else
84#error Unsupported MMU type
85#endif
86
87#endif /*__KERNEL__ */
88#endif /* _ASM_POWERPC_TLBFLUSH_H */