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(vma, start, end) flushes a range of pages
29 */
30extern void local_flush_tlb_all(void);
31extern void local_flush_tlb_mm(struct mm_struct *mm);
32extern void local_flush_tlb_page(struct vm_area_struct *vma,
33				 unsigned long addr);
34extern 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
44extern void flush_tlb_all(void);
45extern void flush_tlb_mm(struct mm_struct *mm);
46extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr);
47extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
48			    unsigned long end);
49#endif
50
51static inline void flush_tlb(void)
52{
53	flush_tlb_mm(current->mm);
54}
55
56static 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 */
63