File-copy from v4.4.100

This is the result of 'cp' from a linux-stable tree with the 'v4.4.100'
tag checked out (commit 26d6298789e695c9f627ce49a7bbd2286405798a) on
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Please refer to that tree for all history prior to this point.

Change-Id: I8a9ee2aea93cd29c52c847d0ce33091a73ae6afe
diff --git a/arch/blackfin/include/asm/cpu.h b/arch/blackfin/include/asm/cpu.h
new file mode 100644
index 0000000..e349631
--- /dev/null
+++ b/arch/blackfin/include/asm/cpu.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2007-2009 Analog Devices Inc.
+ *                         Philippe Gerum <rpm@xenomai.org>
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef __ASM_BLACKFIN_CPU_H
+#define __ASM_BLACKFIN_CPU_H
+
+#include <linux/percpu.h>
+
+struct blackfin_cpudata {
+	struct cpu cpu;
+	unsigned int imemctl;
+	unsigned int dmemctl;
+#ifdef CONFIG_SMP
+	struct task_struct *idle;
+#endif
+};
+
+DECLARE_PER_CPU(struct blackfin_cpudata, cpu_data);
+
+#endif