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+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_IA64_TLB_H
+#define _ASM_IA64_TLB_H
+/*
+ * Based on <asm-generic/tlb.h>.
+ *
+ * Copyright (C) 2002-2003 Hewlett-Packard Co
+ * David Mosberger-Tang <davidm@hpl.hp.com>
+ */
+/*
+ * 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 <linux/mm.h>
+#include <linux/pagemap.h>
+#include <linux/swap.h>
+
+#include <asm/processor.h>
+#include <asm/tlbflush.h>
+
+#include <asm-generic/tlb.h>
+
+#endif /* _ASM_IA64_TLB_H */