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Diffstat (limited to 'arch/sh/mm/tlbflush_64.c')
-rw-r--r--arch/sh/mm/tlbflush_64.c172
1 files changed, 0 insertions, 172 deletions
diff --git a/arch/sh/mm/tlbflush_64.c b/arch/sh/mm/tlbflush_64.c
deleted file mode 100644
index bd0715d5dca4..000000000000
--- a/arch/sh/mm/tlbflush_64.c
+++ /dev/null
@@ -1,172 +0,0 @@
-/*
- * arch/sh/mm/tlb-flush_64.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Richard Curnow (/proc/tlb, bug fixes)
- * Copyright (C) 2003 - 2012 Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/signal.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/perf_event.h>
-#include <linux/interrupt.h>
-#include <asm/io.h>
-#include <asm/tlb.h>
-#include <linux/uaccess.h>
-#include <asm/pgalloc.h>
-#include <asm/mmu_context.h>
-
-void local_flush_tlb_one(unsigned long asid, unsigned long page)
-{
- unsigned long long match, pteh=0, lpage;
- unsigned long tlb;
-
- /*
- * Sign-extend based on neff.
- */
- lpage = neff_sign_extend(page);
- match = (asid << PTEH_ASID_SHIFT) | PTEH_VALID;
- match |= lpage;
-
- for_each_itlb_entry(tlb) {
- asm volatile ("getcfg %1, 0, %0"
- : "=r" (pteh)
- : "r" (tlb) );
-
- if (pteh == match) {
- __flush_tlb_slot(tlb);
- break;
- }
- }
-
- for_each_dtlb_entry(tlb) {
- asm volatile ("getcfg %1, 0, %0"
- : "=r" (pteh)
- : "r" (tlb) );
-
- if (pteh == match) {
- __flush_tlb_slot(tlb);
- break;
- }
-
- }
-}
-
-void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
-{
- unsigned long flags;
-
- if (vma->vm_mm) {
- page &= PAGE_MASK;
- local_irq_save(flags);
- local_flush_tlb_one(get_asid(), page);
- local_irq_restore(flags);
- }
-}
-
-void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
- unsigned long end)
-{
- unsigned long flags;
- unsigned long long match, pteh=0, pteh_epn, pteh_low;
- unsigned long tlb;
- unsigned int cpu = smp_processor_id();
- struct mm_struct *mm;
-
- mm = vma->vm_mm;
- if (cpu_context(cpu, mm) == NO_CONTEXT)
- return;
-
- local_irq_save(flags);
-
- start &= PAGE_MASK;
- end &= PAGE_MASK;
-
- match = (cpu_asid(cpu, mm) << PTEH_ASID_SHIFT) | PTEH_VALID;
-
- /* Flush ITLB */
- for_each_itlb_entry(tlb) {
- asm volatile ("getcfg %1, 0, %0"
- : "=r" (pteh)
- : "r" (tlb) );
-
- pteh_epn = pteh & PAGE_MASK;
- pteh_low = pteh & ~PAGE_MASK;
-
- if (pteh_low == match && pteh_epn >= start && pteh_epn <= end)
- __flush_tlb_slot(tlb);
- }
-
- /* Flush DTLB */
- for_each_dtlb_entry(tlb) {
- asm volatile ("getcfg %1, 0, %0"
- : "=r" (pteh)
- : "r" (tlb) );
-
- pteh_epn = pteh & PAGE_MASK;
- pteh_low = pteh & ~PAGE_MASK;
-
- if (pteh_low == match && pteh_epn >= start && pteh_epn <= end)
- __flush_tlb_slot(tlb);
- }
-
- local_irq_restore(flags);
-}
-
-void local_flush_tlb_mm(struct mm_struct *mm)
-{
- unsigned long flags;
- unsigned int cpu = smp_processor_id();
-
- if (cpu_context(cpu, mm) == NO_CONTEXT)
- return;
-
- local_irq_save(flags);
-
- cpu_context(cpu, mm) = NO_CONTEXT;
- if (mm == current->mm)
- activate_context(mm, cpu);
-
- local_irq_restore(flags);
-}
-
-void local_flush_tlb_all(void)
-{
- /* Invalidate all, including shared pages, excluding fixed TLBs */
- unsigned long flags, tlb;
-
- local_irq_save(flags);
-
- /* Flush each ITLB entry */
- for_each_itlb_entry(tlb)
- __flush_tlb_slot(tlb);
-
- /* Flush each DTLB entry */
- for_each_dtlb_entry(tlb)
- __flush_tlb_slot(tlb);
-
- local_irq_restore(flags);
-}
-
-void local_flush_tlb_kernel_range(unsigned long start, unsigned long end)
-{
- /* FIXME: Optimize this later.. */
- flush_tlb_all();
-}
-
-void __flush_tlb_global(void)
-{
- flush_tlb_all();
-}