1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef _ASM_POWERPC_NOHASH_TLBFLUSH_H 3*4882a593Smuzhiyun #define _ASM_POWERPC_NOHASH_TLBFLUSH_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun /* 6*4882a593Smuzhiyun * TLB flushing: 7*4882a593Smuzhiyun * 8*4882a593Smuzhiyun * - flush_tlb_mm(mm) flushes the specified mm context TLB's 9*4882a593Smuzhiyun * - flush_tlb_page(vma, vmaddr) flushes one page 10*4882a593Smuzhiyun * - local_flush_tlb_mm(mm, full) flushes the specified mm context on 11*4882a593Smuzhiyun * the local processor 12*4882a593Smuzhiyun * - local_flush_tlb_page(vma, vmaddr) flushes one page on the local processor 13*4882a593Smuzhiyun * - flush_tlb_page_nohash(vma, vmaddr) flushes one page if SW loaded TLB 14*4882a593Smuzhiyun * - flush_tlb_range(vma, start, end) flushes a range of pages 15*4882a593Smuzhiyun * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages 16*4882a593Smuzhiyun * 17*4882a593Smuzhiyun */ 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun /* 20*4882a593Smuzhiyun * TLB flushing for software loaded TLB chips 21*4882a593Smuzhiyun * 22*4882a593Smuzhiyun * TODO: (CONFIG_FSL_BOOKE) determine if flush_tlb_range & 23*4882a593Smuzhiyun * flush_tlb_kernel_range are best implemented as tlbia vs 24*4882a593Smuzhiyun * specific tlbie's 25*4882a593Smuzhiyun */ 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun struct vm_area_struct; 28*4882a593Smuzhiyun struct mm_struct; 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun #define MMU_NO_CONTEXT ((unsigned int)-1) 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, 33*4882a593Smuzhiyun unsigned long end); 34*4882a593Smuzhiyun extern void flush_tlb_kernel_range(unsigned long start, unsigned long end); 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun extern void local_flush_tlb_mm(struct mm_struct *mm); 37*4882a593Smuzhiyun extern void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr); 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun extern void __local_flush_tlb_page(struct mm_struct *mm, unsigned long vmaddr, 40*4882a593Smuzhiyun int tsize, int ind); 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun #ifdef CONFIG_SMP 43*4882a593Smuzhiyun extern void flush_tlb_mm(struct mm_struct *mm); 44*4882a593Smuzhiyun extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr); 45*4882a593Smuzhiyun extern void __flush_tlb_page(struct mm_struct *mm, unsigned long vmaddr, 46*4882a593Smuzhiyun int tsize, int ind); 47*4882a593Smuzhiyun #else 48*4882a593Smuzhiyun #define flush_tlb_mm(mm) local_flush_tlb_mm(mm) 49*4882a593Smuzhiyun #define flush_tlb_page(vma,addr) local_flush_tlb_page(vma,addr) 50*4882a593Smuzhiyun #define __flush_tlb_page(mm,addr,p,i) __local_flush_tlb_page(mm,addr,p,i) 51*4882a593Smuzhiyun #endif 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun #endif /* _ASM_POWERPC_NOHASH_TLBFLUSH_H */ 54