| 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 | |
| 32 | struct vm_area_struct; |
| 33 | struct mm_struct; |
| 34 | |
| 35 | #define MMU_NO_CONTEXT ((unsigned int)-1) |
| 36 | |
| 37 | extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, |
| 38 | unsigned long end); |
| 39 | extern void flush_tlb_kernel_range(unsigned long start, unsigned long end); |
| 40 | |
| 41 | extern void local_flush_tlb_mm(struct mm_struct *mm); |
| 42 | extern void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr); |
| 43 | |
| 44 | extern void __local_flush_tlb_page(struct mm_struct *mm, unsigned long vmaddr, |
| 45 | int tsize, int ind); |
| 46 | |
| 47 | #ifdef CONFIG_SMP |
| 48 | extern void flush_tlb_mm(struct mm_struct *mm); |
| 49 | extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr); |
| 50 | extern 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 | |
| 58 | #elif defined(CONFIG_PPC_STD_MMU_32) |
| 59 | |
| 60 | #define MMU_NO_CONTEXT (0) |
| 61 | /* |
| 62 | * TLB flushing for "classic" hash-MMU 32-bit CPUs, 6xx, 7xx, 7xxx |
| 63 | */ |
| 64 | extern void flush_tlb_mm(struct mm_struct *mm); |
| 65 | extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr); |
| 66 | extern void flush_tlb_page_nohash(struct vm_area_struct *vma, unsigned long addr); |
| 67 | extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, |
| 68 | unsigned long end); |
| 69 | extern void flush_tlb_kernel_range(unsigned long start, unsigned long end); |
| 70 | static inline void local_flush_tlb_page(struct vm_area_struct *vma, |
| 71 | unsigned long vmaddr) |
| 72 | { |
| 73 | flush_tlb_page(vma, vmaddr); |
| 74 | } |
| 75 | static inline void local_flush_tlb_mm(struct mm_struct *mm) |
| 76 | { |
| 77 | flush_tlb_mm(mm); |
| 78 | } |
| 79 | |
| 80 | #elif defined(CONFIG_PPC_STD_MMU_64) |
| 81 | #include <asm/book3s/64/tlbflush.h> |
| 82 | #else |
| 83 | #error Unsupported MMU type |
| 84 | #endif |
| 85 | |
| 86 | #endif /*__KERNEL__ */ |
| 87 | #endif /* _ASM_POWERPC_TLBFLUSH_H */ |