1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
4 * Copyright (C) 2008-2009 PetaLogix
5 * Copyright (C) 2006 Atmark Techno, Inc.
6 */
7
8#ifndef _ASM_MICROBLAZE_TLBFLUSH_H
9#define _ASM_MICROBLAZE_TLBFLUSH_H
10
11#include <linux/sched.h>
12#include <linux/threads.h>
13#include <asm/processor.h>	/* For TASK_SIZE */
14#include <asm/mmu.h>
15#include <asm/page.h>
16
17extern void _tlbie(unsigned long address);
18extern void _tlbia(void);
19
20#define __tlbia()	{ preempt_disable(); _tlbia(); preempt_enable(); }
21#define __tlbie(x)	{ _tlbie(x); }
22
23static inline void local_flush_tlb_all(void)
24	{ __tlbia(); }
25static inline void local_flush_tlb_mm(struct mm_struct *mm)
26	{ __tlbia(); }
27static inline void local_flush_tlb_page(struct vm_area_struct *vma,
28				unsigned long vmaddr)
29	{ __tlbie(vmaddr); }
30static inline void local_flush_tlb_range(struct vm_area_struct *vma,
31		unsigned long start, unsigned long end)
32	{ __tlbia(); }
33
34#define flush_tlb_kernel_range(start, end)	do { } while (0)
35
36#define update_mmu_cache_range(vmf, vma, addr, ptep, nr) do { } while (0)
37#define update_mmu_cache(vma, addr, pte) \
38	update_mmu_cache_range(NULL, vma, addr, ptep, 1)
39
40#define flush_tlb_all local_flush_tlb_all
41#define flush_tlb_mm local_flush_tlb_mm
42#define flush_tlb_page local_flush_tlb_page
43#define flush_tlb_range local_flush_tlb_range
44
45/*
46 * This is called in munmap when we have freed up some page-table
47 * pages.  We don't need to do anything here, there's nothing special
48 * about our page-table pages.  -- paulus
49 */
50static inline void flush_tlb_pgtables(struct mm_struct *mm,
51	unsigned long start, unsigned long end) { }
52
53#endif /* _ASM_MICROBLAZE_TLBFLUSH_H */
54