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 #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 */ 65 extern void flush_tlb_mm(struct mm_struct *mm); 66 extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr); 67 extern void flush_tlb_page_nohash(struct vm_area_struct *vma, unsigned long addr); 68 extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, 69 unsigned long end); 70 extern void flush_tlb_kernel_range(unsigned long start, unsigned long end); 71 static inline void local_flush_tlb_page(struct vm_area_struct *vma, 72 unsigned long vmaddr) 73 { 74 flush_tlb_page(vma, vmaddr); 75 } 76 static 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 */ 89