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-rw-r--r--arch/tile/kernel/tlb.c104
1 files changed, 0 insertions, 104 deletions
diff --git a/arch/tile/kernel/tlb.c b/arch/tile/kernel/tlb.c
deleted file mode 100644
index f23b53515671..000000000000
--- a/arch/tile/kernel/tlb.c
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * Copyright 2010 Tilera Corporation. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation, version 2.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for
- * more details.
- *
- */
-
-#include <linux/cpumask.h>
-#include <linux/module.h>
-#include <linux/hugetlb.h>
-#include <asm/tlbflush.h>
-#include <asm/homecache.h>
-#include <hv/hypervisor.h>
-
-/* From tlbflush.h */
-DEFINE_PER_CPU(int, current_asid);
-int min_asid, max_asid;
-
-/*
- * Note that we flush the L1I (for VM_EXEC pages) as well as the TLB
- * so that when we are unmapping an executable page, we also flush it.
- * Combined with flushing the L1I at context switch time, this means
- * we don't have to do any other icache flushes.
- */
-
-void flush_tlb_mm(struct mm_struct *mm)
-{
- HV_Remote_ASID asids[NR_CPUS];
- int i = 0, cpu;
- for_each_cpu(cpu, mm_cpumask(mm)) {
- HV_Remote_ASID *asid = &asids[i++];
- asid->y = cpu / smp_topology.width;
- asid->x = cpu % smp_topology.width;
- asid->asid = per_cpu(current_asid, cpu);
- }
- flush_remote(0, HV_FLUSH_EVICT_L1I, mm_cpumask(mm),
- 0, 0, 0, NULL, asids, i);
-}
-
-void flush_tlb_current_task(void)
-{
- flush_tlb_mm(current->mm);
-}
-
-void flush_tlb_page_mm(struct vm_area_struct *vma, struct mm_struct *mm,
- unsigned long va)
-{
- unsigned long size = vma_kernel_pagesize(vma);
- int cache = (vma->vm_flags & VM_EXEC) ? HV_FLUSH_EVICT_L1I : 0;
- flush_remote(0, cache, mm_cpumask(mm),
- va, size, size, mm_cpumask(mm), NULL, 0);
-}
-
-void flush_tlb_page(struct vm_area_struct *vma, unsigned long va)
-{
- flush_tlb_page_mm(vma, vma->vm_mm, va);
-}
-EXPORT_SYMBOL(flush_tlb_page);
-
-void flush_tlb_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end)
-{
- unsigned long size = vma_kernel_pagesize(vma);
- struct mm_struct *mm = vma->vm_mm;
- int cache = (vma->vm_flags & VM_EXEC) ? HV_FLUSH_EVICT_L1I : 0;
- flush_remote(0, cache, mm_cpumask(mm), start, end - start, size,
- mm_cpumask(mm), NULL, 0);
-}
-
-void flush_tlb_all(void)
-{
- int i;
- for (i = 0; ; ++i) {
- HV_VirtAddrRange r = hv_inquire_virtual(i);
- if (r.size == 0)
- break;
- flush_remote(0, HV_FLUSH_EVICT_L1I, cpu_online_mask,
- r.start, r.size, PAGE_SIZE, cpu_online_mask,
- NULL, 0);
- flush_remote(0, 0, NULL,
- r.start, r.size, HPAGE_SIZE, cpu_online_mask,
- NULL, 0);
- }
-}
-
-/*
- * Callers need to flush the L1I themselves if necessary, e.g. for
- * kernel module unload. Otherwise we assume callers are not using
- * executable pgprot_t's. Using EVICT_L1I means that dataplane cpus
- * will get an unnecessary interrupt otherwise.
- */
-void flush_tlb_kernel_range(unsigned long start, unsigned long end)
-{
- flush_remote(0, 0, NULL,
- start, end - start, PAGE_SIZE, cpu_online_mask, NULL, 0);
-}