xref: /linux/arch/nios2/include/asm/tlbflush.h (revision ca55b2fef3a9373fcfc30f82fd26bc7fccbda732)
1 /*
2  * Copyright (C) 2010 Tobias Klauser <tklauser@distanz.ch>
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; either version 2 of the License, or
7  * (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
16  *
17  */
18 
19 #ifndef _ASM_NIOS2_TLBFLUSH_H
20 #define _ASM_NIOS2_TLBFLUSH_H
21 
22 struct mm_struct;
23 
24 /*
25  * TLB flushing:
26  *
27  *  - flush_tlb_all() flushes all processes TLB entries
28  *  - flush_tlb_mm(mm) flushes the specified mm context TLB entries
29  *  - flush_tlb_page(vma, vmaddr) flushes one page
30  *  - flush_tlb_range(vma, start, end) flushes a range of pages
31  *  - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
32  */
33 extern void flush_tlb_all(void);
34 extern void flush_tlb_mm(struct mm_struct *mm);
35 extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
36 			    unsigned long end);
37 extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
38 extern void flush_tlb_one(unsigned long vaddr);
39 
40 static inline void flush_tlb_page(struct vm_area_struct *vma,
41 				unsigned long addr)
42 {
43 	flush_tlb_one(addr);
44 }
45 
46 #endif /* _ASM_NIOS2_TLBFLUSH_H */
47