a commit

kernel/copy.c

@@ -0,0 +1,32 @@
+#include <aal/dma.h>
+#include <amemcpy.h>
+
+int memcpy_async(unsigned long dest, unsigned long src,
+                 unsigned long len, int wait, unsigned long *notify)
+{
+	struct aal_dma_request req;
+	unsigned long fin = 0;
+
+	if (notify)
+		*notify = 0;
+	memset(&req, 0, sizeof(req));
+	req.src_phys = src;
+	req.dest_phys = dest;
+	req.size = len;
+
+	if (notify) {
+		req.notify = (void *)virt_to_phys(notify);
+		req.priv = (void *)1;
+	} else if (wait) {
+		req.notify = (void *)virt_to_phys(&fin);
+		req.priv = (void *)1;
+	}
+
+	aal_mc_dma_request(0, &req);
+	if (wait) {
+		while (!fin) {
+			barrier();
+		}
+	}
+	return 0;
+}