1 files changed, 103 insertions, 0 deletions

diff --git a/arch/sh/include/asm/bitops.h b/arch/sh/include/asm/bitops.h
new file mode 100644
index 000000000000..d7d382f63ee5
--- /dev/null
+++ b/arch/sh/include/asm/bitops.h
@@ -0,0 +1,103 @@
+#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
+
+#include <asm/system.h>
+/* For __swab32 */
+#include <asm/byteorder.h>
+
+#ifdef CONFIG_GUSA_RB
+#include <asm/bitops-grb.h>
+#else
+#include <asm/bitops-irq.h>
+#endif
+
+
+/*
+ * clear_bit() doesn't provide any barrier for the compiler.
+ */
+#define smp_mb__before_clear_bit()      barrier()
+#define smp_mb__after_clear_bit()       barrier()
+
+#include <asm-generic/bitops/non-atomic.h>
+
+#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/ext2-non-atomic.h>
+#include <asm-generic/bitops/ext2-atomic.h>
+#include <asm-generic/bitops/minix.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 */