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-rw-r--r--arch/nds32/include/asm/tlbflush.h46
1 files changed, 46 insertions, 0 deletions
diff --git a/arch/nds32/include/asm/tlbflush.h b/arch/nds32/include/asm/tlbflush.h
new file mode 100644
index 000000000..97155366e
--- /dev/null
+++ b/arch/nds32/include/asm/tlbflush.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+// Copyright (C) 2005-2017 Andes Technology Corporation
+
+#ifndef _ASMNDS32_TLBFLUSH_H
+#define _ASMNDS32_TLBFLUSH_H
+
+#include <linux/spinlock.h>
+#include <linux/mm.h>
+#include <nds32_intrinsic.h>
+
+static inline void local_flush_tlb_all(void)
+{
+ __nds32__tlbop_flua();
+ __nds32__isb();
+}
+
+static inline void local_flush_tlb_mm(struct mm_struct *mm)
+{
+ __nds32__tlbop_flua();
+ __nds32__isb();
+}
+
+static inline void local_flush_tlb_kernel_range(unsigned long start,
+ unsigned long end)
+{
+ while (start < end) {
+ __nds32__tlbop_inv(start);
+ __nds32__isb();
+ start += PAGE_SIZE;
+ }
+}
+
+void local_flush_tlb_range(struct vm_area_struct *vma,
+ unsigned long start, unsigned long end);
+void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long addr);
+
+#define flush_tlb_all local_flush_tlb_all
+#define flush_tlb_mm local_flush_tlb_mm
+#define flush_tlb_range local_flush_tlb_range
+#define flush_tlb_page local_flush_tlb_page
+#define flush_tlb_kernel_range local_flush_tlb_kernel_range
+
+void update_mmu_cache(struct vm_area_struct *vma,
+ unsigned long address, pte_t * pte);
+
+#endif