1 files changed, 47 insertions, 0 deletions

diff --git a/arch/score/include/asm/cacheflush.h b/arch/score/include/asm/cacheflush.h
new file mode 100644
index 000000000000..1c74628caf71
--- /dev/null
+++ b/arch/score/include/asm/cacheflush.h
@@ -0,0 +1,47 @@
+#ifndef _ASM_SCORE_CACHEFLUSH_H
+#define _ASM_SCORE_CACHEFLUSH_H
+
+/* Keep includes the same across arches. */
+#include <linux/mm.h>
+
+extern void (*flush_cache_all)(void);
+extern void (*flush_cache_mm)(struct mm_struct *mm);
+extern void (*flush_cache_range)(struct vm_area_struct *vma,
+                                unsigned long start, unsigned long end);
+extern void (*flush_cache_page)(struct vm_area_struct *vma,
+                                unsigned long page, unsigned long pfn);
+extern void (*flush_cache_sigtramp)(unsigned long addr);
+extern void (*flush_icache_all)(void);
+extern void (*flush_icache_range)(unsigned long start, unsigned long end);
+extern void (*flush_data_cache_page)(unsigned long addr);
+
+extern void s7_flush_cache_all(void);
+
+#define flush_cache_dup_mm(mm)                  do {} while (0)
+#define flush_dcache_page(page)                 do {} while (0)
+#define flush_dcache_mmap_lock(mapping)         do {} while (0)
+#define flush_dcache_mmap_unlock(mapping)       do {} while (0)
+#define flush_cache_vmap(start, end)            do {} while (0)
+#define flush_cache_vunmap(start, end)          do {} while (0)
+
+static inline void flush_icache_page(struct vm_area_struct *vma,
+        struct page *page)
+{
+        if (vma->vm_flags & VM_EXEC) {
+                void *v = page_address(page);
+                flush_icache_range((unsigned long) v,
+                                (unsigned long) v + PAGE_SIZE);
+        }
+}
+
+#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
+        memcpy(dst, src, len)
+
+#define copy_to_user_page(vma, page, vaddr, dst, src, len)      \
+        do {                                                    \
+                memcpy(dst, src, len);                          \
+                if ((vma->vm_flags & VM_EXEC))                  \
+                        flush_cache_page(vma, vaddr, page_to_pfn(page));\
+        } while (0)
+
+#endif /* _ASM_SCORE_CACHEFLUSH_H */