1 /*
2 * OpenRISC Linux
3 *
4 * Linux architectural port borrowing liberally from similar works of
5 * others. All original copyrights apply as per the original source
6 * declaration.
7 *
8 * OpenRISC implementation:
9 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
10 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
11 * et al.
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 */
18
19 #ifndef __ASM_OPENRISC_TLBFLUSH_H
20 #define __ASM_OPENRISC_TLBFLUSH_H
21
22 #include <linux/mm.h>
23 #include <asm/processor.h>
24 #include <asm/pgtable.h>
25 #include <asm/pgalloc.h>
26 #include <asm/current.h>
27 #include <linux/sched.h>
28
29 /*
30 * - flush_tlb() flushes the current mm struct TLBs
31 * - flush_tlb_all() flushes all processes TLBs
32 * - flush_tlb_mm(mm) flushes the specified mm context TLB's
33 * - flush_tlb_page(vma, vmaddr) flushes one page
34 * - flush_tlb_range(mm, start, end) flushes a range of pages
35 */
36 extern void local_flush_tlb_all(void);
37 extern void local_flush_tlb_mm(struct mm_struct *mm);
38 extern void local_flush_tlb_page(struct vm_area_struct *vma,
39 unsigned long addr);
40 extern void local_flush_tlb_range(struct vm_area_struct *vma,
41 unsigned long start,
42 unsigned long end);
43
44 #ifndef CONFIG_SMP
45 #define flush_tlb_all local_flush_tlb_all
46 #define flush_tlb_mm local_flush_tlb_mm
47 #define flush_tlb_page local_flush_tlb_page
48 #define flush_tlb_range local_flush_tlb_range
49 #else
50 extern void flush_tlb_all(void);
51 extern void flush_tlb_mm(struct mm_struct *mm);
52 extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr);
53 extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
54 unsigned long end);
55 #endif
56
flush_tlb(void)57 static inline void flush_tlb(void)
58 {
59 flush_tlb_mm(current->mm);
60 }
61
flush_tlb_kernel_range(unsigned long start,unsigned long end)62 static inline void flush_tlb_kernel_range(unsigned long start,
63 unsigned long end)
64 {
65 flush_tlb_range(NULL, start, end);
66 }
67
68 #endif /* __ASM_OPENRISC_TLBFLUSH_H */
69
