1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
4  */
5 #ifndef __ASM_TLBFLUSH_H
6 #define __ASM_TLBFLUSH_H
7 
8 #include <linux/mm.h>
9 
10 /*
11  * TLB flushing:
12  *
13  *  - flush_tlb_all() flushes all processes TLB entries
14  *  - flush_tlb_mm(mm) flushes the specified mm context TLB entries
15  *  - flush_tlb_page(vma, vmaddr) flushes one page
16  *  - flush_tlb_range(vma, start, end) flushes a range of pages
17  *  - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
18  */
19 extern void local_flush_tlb_all(void);
20 extern void local_flush_tlb_user(void);
21 extern void local_flush_tlb_kernel(void);
22 extern void local_flush_tlb_mm(struct mm_struct *mm);
23 extern void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end);
24 extern void local_flush_tlb_kernel_range(unsigned long start, unsigned long end);
25 extern void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page);
26 extern void local_flush_tlb_one(unsigned long vaddr);
27 
28 #ifdef CONFIG_SMP
29 
30 extern void flush_tlb_all(void);
31 extern void flush_tlb_mm(struct mm_struct *);
32 extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long, unsigned long);
33 extern void flush_tlb_kernel_range(unsigned long, unsigned long);
34 extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
35 extern void flush_tlb_one(unsigned long vaddr);
36 
37 #else /* CONFIG_SMP */
38 
39 #define flush_tlb_all()			local_flush_tlb_all()
40 #define flush_tlb_mm(mm)		local_flush_tlb_mm(mm)
41 #define flush_tlb_range(vma, vmaddr, end)	local_flush_tlb_range(vma, vmaddr, end)
42 #define flush_tlb_kernel_range(vmaddr, end)	local_flush_tlb_kernel_range(vmaddr, end)
43 #define flush_tlb_page(vma, page)	local_flush_tlb_page(vma, page)
44 #define flush_tlb_one(vaddr)		local_flush_tlb_one(vaddr)
45 
46 #endif /* CONFIG_SMP */
47 
48 #endif /* __ASM_TLBFLUSH_H */
49