Merge tag 'sched-urgent-2020-08-15' of git://git.kernel.org/pub/scm/linux/kernel...
[sfrench/cifs-2.6.git] / arch / openrisc / include / asm / tlbflush.h
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * OpenRISC Linux
4  *
5  * Linux architectural port borrowing liberally from similar works of
6  * others.  All original copyrights apply as per the original source
7  * declaration.
8  *
9  * OpenRISC implementation:
10  * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
11  * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
12  * et al.
13  */
14
15 #ifndef __ASM_OPENRISC_TLBFLUSH_H
16 #define __ASM_OPENRISC_TLBFLUSH_H
17
18 #include <linux/mm.h>
19 #include <asm/processor.h>
20 #include <asm/current.h>
21 #include <linux/sched.h>
22
23 /*
24  *  - flush_tlb() flushes the current mm struct TLBs
25  *  - flush_tlb_all() flushes all processes TLBs
26  *  - flush_tlb_mm(mm) flushes the specified mm context TLB's
27  *  - flush_tlb_page(vma, vmaddr) flushes one page
28  *  - flush_tlb_range(mm, start, end) flushes a range of pages
29  */
30 extern void local_flush_tlb_all(void);
31 extern void local_flush_tlb_mm(struct mm_struct *mm);
32 extern void local_flush_tlb_page(struct vm_area_struct *vma,
33                                  unsigned long addr);
34 extern void local_flush_tlb_range(struct vm_area_struct *vma,
35                                   unsigned long start,
36                                   unsigned long end);
37
38 #ifndef CONFIG_SMP
39 #define flush_tlb_all   local_flush_tlb_all
40 #define flush_tlb_mm    local_flush_tlb_mm
41 #define flush_tlb_page  local_flush_tlb_page
42 #define flush_tlb_range local_flush_tlb_range
43 #else
44 extern void flush_tlb_all(void);
45 extern void flush_tlb_mm(struct mm_struct *mm);
46 extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr);
47 extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
48                             unsigned long end);
49 #endif
50
51 static inline void flush_tlb(void)
52 {
53         flush_tlb_mm(current->mm);
54 }
55
56 static inline void flush_tlb_kernel_range(unsigned long start,
57                                           unsigned long end)
58 {
59         flush_tlb_range(NULL, start, end);
60 }
61
62 #endif /* __ASM_OPENRISC_TLBFLUSH_H */