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_range(vma, start, end) flushes a range of pages
14  *  - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
15  *
16  */
17 
18 /*
19  * TLB flushing for software loaded TLB chips
20  *
21  * TODO: (CONFIG_FSL_BOOKE) determine if flush_tlb_range &
22  * flush_tlb_kernel_range are best implemented as tlbia vs
23  * specific tlbie's
24  */
25 
26 struct vm_area_struct;
27 struct mm_struct;
28 
29 #define MMU_NO_CONTEXT      	((unsigned int)-1)
30 
31 extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
32 			    unsigned long end);
33 extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
34 
35 extern void local_flush_tlb_mm(struct mm_struct *mm);
36 extern void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
37 
38 extern void __local_flush_tlb_page(struct mm_struct *mm, unsigned long vmaddr,
39 				   int tsize, int ind);
40 
41 #ifdef CONFIG_SMP
42 extern void flush_tlb_mm(struct mm_struct *mm);
43 extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
44 extern void __flush_tlb_page(struct mm_struct *mm, unsigned long vmaddr,
45 			     int tsize, int ind);
46 #else
47 #define flush_tlb_mm(mm)		local_flush_tlb_mm(mm)
48 #define flush_tlb_page(vma,addr)	local_flush_tlb_page(vma,addr)
49 #define __flush_tlb_page(mm,addr,p,i)	__local_flush_tlb_page(mm,addr,p,i)
50 #endif
51 
52 #endif /* _ASM_POWERPC_NOHASH_TLBFLUSH_H */
53