v4.19.13 snapshot.
diff --git a/arch/sh/include/asm/bitops.h b/arch/sh/include/asm/bitops.h
new file mode 100644
index 0000000..8c35782
--- /dev/null
+++ b/arch/sh/include/asm/bitops.h
@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_SH_BITOPS_H
+#define __ASM_SH_BITOPS_H
+
+#ifdef __KERNEL__
+
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
+/* For __swab32 */
+#include <asm/byteorder.h>
+#include <asm/barrier.h>
+
+#ifdef CONFIG_GUSA_RB
+#include <asm/bitops-grb.h>
+#elif defined(CONFIG_CPU_SH2A)
+#include <asm-generic/bitops/atomic.h>
+#include <asm/bitops-op32.h>
+#elif defined(CONFIG_CPU_SH4A)
+#include <asm/bitops-llsc.h>
+#elif defined(CONFIG_CPU_J2) && defined(CONFIG_SMP)
+#include <asm/bitops-cas.h>
+#else
+#include <asm-generic/bitops/atomic.h>
+#include <asm-generic/bitops/non-atomic.h>
+#endif
+
+#ifdef CONFIG_SUPERH32
+static inline unsigned long ffz(unsigned long word)
+{
+ unsigned long result;
+
+ __asm__("1:\n\t"
+ "shlr %1\n\t"
+ "bt/s 1b\n\t"
+ " add #1, %0"
+ : "=r" (result), "=r" (word)
+ : "0" (~0L), "1" (word)
+ : "t");
+ return result;
+}
+
+/**
+ * __ffs - find first bit in word.
+ * @word: The word to search
+ *
+ * Undefined if no bit exists, so code should check against 0 first.
+ */
+static inline unsigned long __ffs(unsigned long word)
+{
+ unsigned long result;
+
+ __asm__("1:\n\t"
+ "shlr %1\n\t"
+ "bf/s 1b\n\t"
+ " add #1, %0"
+ : "=r" (result), "=r" (word)
+ : "0" (~0L), "1" (word)
+ : "t");
+ return result;
+}
+#else
+static inline unsigned long ffz(unsigned long word)
+{
+ unsigned long result, __d2, __d3;
+
+ __asm__("gettr tr0, %2\n\t"
+ "pta $+32, tr0\n\t"
+ "andi %1, 1, %3\n\t"
+ "beq %3, r63, tr0\n\t"
+ "pta $+4, tr0\n"
+ "0:\n\t"
+ "shlri.l %1, 1, %1\n\t"
+ "addi %0, 1, %0\n\t"
+ "andi %1, 1, %3\n\t"
+ "beqi %3, 1, tr0\n"
+ "1:\n\t"
+ "ptabs %2, tr0\n\t"
+ : "=r" (result), "=r" (word), "=r" (__d2), "=r" (__d3)
+ : "0" (0L), "1" (word));
+
+ return result;
+}
+
+#include <asm-generic/bitops/__ffs.h>
+#endif
+
+#include <asm-generic/bitops/find.h>
+#include <asm-generic/bitops/ffs.h>
+#include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/lock.h>
+#include <asm-generic/bitops/sched.h>
+#include <asm-generic/bitops/le.h>
+#include <asm-generic/bitops/ext2-atomic.h>
+#include <asm-generic/bitops/fls.h>
+#include <asm-generic/bitops/__fls.h>
+#include <asm-generic/bitops/fls64.h>
+
+#endif /* __KERNEL__ */
+
+#endif /* __ASM_SH_BITOPS_H */