/usr/src/linux-headers-5.15.0-181/arch/ia64/include/asm
Edit: /usr/src/linux-headers-5.15.0-181/arch/ia64/include/asm/tlb.h (1577B)
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_IA64_TLB_H
#define _ASM_IA64_TLB_H
/*
* Based on
.
*
* Copyright (C) 2002-2003 Hewlett-Packard Co
* David Mosberger-Tang
*/
/*
* Removing a translation from a page table (including TLB-shootdown) is a four-step
* procedure:
*
* (1) Flush (virtual) caches --- ensures virtual memory is coherent with kernel memory
* (this is a no-op on ia64).
* (2) Clear the relevant portions of the page-table
* (3) Flush the TLBs --- ensures that stale content is gone from CPU TLBs
* (4) Release the pages that were freed up in step (2).
*
* Note that the ordering of these steps is crucial to avoid races on MP machines.
*
* The Linux kernel defines several platform-specific hooks for TLB-shootdown. When
* unmapping a portion of the virtual address space, these hooks are called according to
* the following template:
*
* tlb <- tlb_gather_mmu(mm); // start unmap for address space MM
* {
* for each vma that needs a shootdown do {
* tlb_start_vma(tlb, vma);
* for each page-table-entry PTE that needs to be removed do {
* tlb_remove_tlb_entry(tlb, pte, address);
* if (pte refers to a normal page) {
* tlb_remove_page(tlb, page);
* }
* }
* tlb_end_vma(tlb, vma);
* }
* }
* tlb_finish_mmu(tlb); // finish unmap for address space MM
*/
#include
#include
#include
#include
#include
#include
#endif /* _ASM_IA64_TLB_H */