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Current File : /usr/src/linux-headers-5.15.0-142-generic/arch/openrisc/include/asm/tlbflush.h
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * OpenRISC Linux
 *
 * Linux architectural port borrowing liberally from similar works of
 * others.  All original copyrights apply as per the original source
 * declaration.
 *
 * OpenRISC implementation:
 * Copyright (C) 2003 Matjaz Breskvar <[email protected]>
 * Copyright (C) 2010-2011 Jonas Bonn <[email protected]>
 * et al.
 */

#ifndef __ASM_OPENRISC_TLBFLUSH_H
#define __ASM_OPENRISC_TLBFLUSH_H

#include <linux/mm.h>
#include <asm/processor.h>
#include <asm/current.h>
#include <linux/sched.h>

/*
 *  - flush_tlb() flushes the current mm struct TLBs
 *  - flush_tlb_all() flushes all processes TLBs
 *  - flush_tlb_mm(mm) flushes the specified mm context TLB's
 *  - flush_tlb_page(vma, vmaddr) flushes one page
 *  - flush_tlb_range(vma, start, end) flushes a range of pages
 */
extern void local_flush_tlb_all(void);
extern void local_flush_tlb_mm(struct mm_struct *mm);
extern void local_flush_tlb_page(struct vm_area_struct *vma,
				 unsigned long addr);
extern void local_flush_tlb_range(struct vm_area_struct *vma,
				  unsigned long start,
				  unsigned long end);

#ifndef CONFIG_SMP
#define flush_tlb_all	local_flush_tlb_all
#define flush_tlb_mm	local_flush_tlb_mm
#define flush_tlb_page	local_flush_tlb_page
#define flush_tlb_range	local_flush_tlb_range
#else
extern void flush_tlb_all(void);
extern void flush_tlb_mm(struct mm_struct *mm);
extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr);
extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
			    unsigned long end);
#endif

static inline void flush_tlb(void)
{
	flush_tlb_mm(current->mm);
}

static inline void flush_tlb_kernel_range(unsigned long start,
					  unsigned long end)
{
	flush_tlb_range(NULL, start, end);
}

#endif /* __ASM_OPENRISC_TLBFLUSH_H */

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