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Diffstat (limited to 'arch/nds32/mm/tlb.c')
-rw-r--r--arch/nds32/mm/tlb.c50
1 files changed, 0 insertions, 50 deletions
diff --git a/arch/nds32/mm/tlb.c b/arch/nds32/mm/tlb.c
deleted file mode 100644
index dd41f5e0712f..000000000000
--- a/arch/nds32/mm/tlb.c
+++ /dev/null
@@ -1,50 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/spinlock_types.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <asm/nds32.h>
-#include <nds32_intrinsic.h>
-
-unsigned int cpu_last_cid = { TLB_MISC_mskCID + (2 << TLB_MISC_offCID) };
-
-DEFINE_SPINLOCK(cid_lock);
-
-void local_flush_tlb_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end)
-{
- unsigned long flags, ocid, ncid;
-
- if ((end - start) > 0x400000) {
- __nds32__tlbop_flua();
- __nds32__isb();
- return;
- }
-
- spin_lock_irqsave(&cid_lock, flags);
- ocid = __nds32__mfsr(NDS32_SR_TLB_MISC);
- ncid = (ocid & ~TLB_MISC_mskCID) | vma->vm_mm->context.id;
- __nds32__mtsr_dsb(ncid, NDS32_SR_TLB_MISC);
- while (start < end) {
- __nds32__tlbop_inv(start);
- __nds32__isb();
- start += PAGE_SIZE;
- }
- __nds32__mtsr_dsb(ocid, NDS32_SR_TLB_MISC);
- spin_unlock_irqrestore(&cid_lock, flags);
-}
-
-void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
-{
- unsigned long flags, ocid, ncid;
-
- spin_lock_irqsave(&cid_lock, flags);
- ocid = __nds32__mfsr(NDS32_SR_TLB_MISC);
- ncid = (ocid & ~TLB_MISC_mskCID) | vma->vm_mm->context.id;
- __nds32__mtsr_dsb(ncid, NDS32_SR_TLB_MISC);
- __nds32__tlbop_inv(addr);
- __nds32__isb();
- __nds32__mtsr_dsb(ocid, NDS32_SR_TLB_MISC);
- spin_unlock_irqrestore(&cid_lock, flags);
-}