blob: a7c9ab398cabb9d7943954d396e47f30cbf31f12 [file] [log] [blame]
/* SPDX-License-Identifier: GPL-2.0-only */
* TLB flush support for Hexagon
* Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
#include <linux/mm.h>
#include <asm/processor.h>
* TLB flushing -- in "SMP", these routines get defined to be the
* ones from smp.c, else they are some local flavors.
* These functions are commonly macros, but in the interests of
* VM vs. native implementation and code size, we simply declare
* the function prototypes here.
extern void tlb_flush_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);
extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
extern void flush_tlb_one(unsigned long);
* "This is called in munmap when we have freed up some page-table pages.
* We don't need to do anything here..."
* The VM kernel doesn't walk page tables, and they are passed to the VMM
* by logical address. There doesn't seem to be any possibility that they
* could be referenced by the VM kernel based on a stale mapping, since
* they would only be located by consulting the mm structure, and they
* will have been purged from that structure by the munmap. Seems like
* a noop on HVM as well.
#define flush_tlb_pgtables(mm, start, end)