1 files changed, 54 insertions, 0 deletions
diff --git a/arch/nds32/include/asm/cacheflush.h b/arch/nds32/include/asm/cacheflush.h
new file mode 100644
index 000000000..7d6824f7c
--- /dev/null
+++ b/arch/nds32/include/asm/cacheflush.h
@@ -0,0 +1,54 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+// Copyright (C) 2005-2017 Andes Technology Corporation
+
+#ifndef __NDS32_CACHEFLUSH_H__
+#define __NDS32_CACHEFLUSH_H__
+
+#include <linux/mm.h>
+
+#define PG_dcache_dirty PG_arch_1
+
+void flush_icache_range(unsigned long start, unsigned long end);
+#define flush_icache_range flush_icache_range
+
+void flush_icache_page(struct vm_area_struct *vma, struct page *page);
+#define flush_icache_page flush_icache_page
+
+#ifdef CONFIG_CPU_CACHE_ALIASING
+void flush_cache_mm(struct mm_struct *mm);
+void flush_cache_dup_mm(struct mm_struct *mm);
+void flush_cache_range(struct vm_area_struct *vma,
+		       unsigned long start, unsigned long end);
+void flush_cache_page(struct vm_area_struct *vma,
+		      unsigned long addr, unsigned long pfn);
+void flush_cache_kmaps(void);
+void flush_cache_vmap(unsigned long start, unsigned long end);
+void flush_cache_vunmap(unsigned long start, unsigned long end);
+
+#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
+void flush_dcache_page(struct page *page);
+void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
+		       unsigned long vaddr, void *dst, void *src, int len);
+void copy_from_user_page(struct vm_area_struct *vma, struct page *page,
+			 unsigned long vaddr, void *dst, void *src, int len);
+
+#define ARCH_HAS_FLUSH_ANON_PAGE
+void flush_anon_page(struct vm_area_struct *vma,
+		     struct page *page, unsigned long vaddr);
+
+#define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
+void flush_kernel_dcache_page(struct page *page);
+void flush_kernel_vmap_range(void *addr, int size);
+void invalidate_kernel_vmap_range(void *addr, int size);
+#define flush_dcache_mmap_lock(mapping)   xa_lock_irq(&(mapping)->i_pages)
+#define flush_dcache_mmap_unlock(mapping) xa_unlock_irq(&(mapping)->i_pages)
+
+#else
+void flush_icache_user_page(struct vm_area_struct *vma, struct page *page,
+	                     unsigned long addr, int len);
+#define flush_icache_user_page flush_icache_user_page
+
+#include <asm-generic/cacheflush.h>
+#endif
+
+#endif /* __NDS32_CACHEFLUSH_H__ */