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 */ 54