| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef _ASM_POWERPC_NOHASH_TLBFLUSH_H |
| 3 | #define _ASM_POWERPC_NOHASH_TLBFLUSH_H |
| 4 | |
| 5 | /* |
| 6 | * TLB flushing: |
| 7 | * |
| 8 | * - flush_tlb_mm(mm) flushes the specified mm context TLB's |
| 9 | * - flush_tlb_page(vma, vmaddr) flushes one page |
| 10 | * - local_flush_tlb_mm(mm, full) flushes the specified mm context on |
| 11 | * the local processor |
| 12 | * - local_flush_tlb_page(vma, vmaddr) flushes one page on the local processor |
| 13 | * - flush_tlb_page_nohash(vma, vmaddr) flushes one page if SW loaded TLB |
| 14 | * - flush_tlb_range(vma, start, end) flushes a range of pages |
| 15 | * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages |
| 16 | * |
| 17 | */ |
| 18 | |
| 19 | /* |
| 20 | * TLB flushing for software loaded TLB chips |
| 21 | * |
| 22 | * TODO: (CONFIG_FSL_BOOKE) determine if flush_tlb_range & |
| 23 | * flush_tlb_kernel_range are best implemented as tlbia vs |
| 24 | * specific tlbie's |
| 25 | */ |
| 26 | |
| 27 | struct vm_area_struct; |
| 28 | struct mm_struct; |
| 29 | |
| 30 | #define MMU_NO_CONTEXT ((unsigned int)-1) |
| 31 | |
| 32 | extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, |
| 33 | unsigned long end); |
| 34 | extern void flush_tlb_kernel_range(unsigned long start, unsigned long end); |
| 35 | |
| 36 | extern void local_flush_tlb_mm(struct mm_struct *mm); |
| 37 | extern void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr); |
| 38 | |
| 39 | extern void __local_flush_tlb_page(struct mm_struct *mm, unsigned long vmaddr, |
| 40 | int tsize, int ind); |
| 41 | |
| 42 | #ifdef CONFIG_SMP |
| 43 | extern void flush_tlb_mm(struct mm_struct *mm); |
| 44 | extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr); |
| 45 | extern void __flush_tlb_page(struct mm_struct *mm, unsigned long vmaddr, |
| 46 | int tsize, int ind); |
| 47 | #else |
| 48 | #define flush_tlb_mm(mm) local_flush_tlb_mm(mm) |
| 49 | #define flush_tlb_page(vma,addr) local_flush_tlb_page(vma,addr) |
| 50 | #define __flush_tlb_page(mm,addr,p,i) __local_flush_tlb_page(mm,addr,p,i) |
| 51 | #endif |
| 52 | |
| 53 | #endif /* _ASM_POWERPC_NOHASH_TLBFLUSH_H */ |