Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (112 commits)
  sh: Move SH-4 CPU headers down one more level.
  sh: Only build in gpio.o when CONFIG_GENERIC_GPIO is selected.
  sh: Migrate common board headers to mach-common/.
  sh: Move the CPU definition headers from asm/ to cpu/.
  serial: sh-sci: Add support SCIF of SH7723
  video: add sh_mobile_lcdc platform flags
  video: remove unused sh_mobile_lcdc platform data
  sh: remove consistent alloc cruft
  sh: add dynamic crash base address support
  sh: reduce Migo-R smc91x overruns
  sh: Fix up some merge damage.
  Fix debugfs_create_file's error checking method for arch/sh/mm/
  Fix debugfs_create_dir's error checking method for arch/sh/kernel/
  sh: ap325rxa: Add support RTC RX-8564LC in AP325RXA board
  sh: Use sh7720 GPIO on magicpanelr2 board
  sh: Add sh7720 pinmux code
  sh: Use sh7203 GPIO on rsk7203 board
  sh: Add sh7203 pinmux code
  sh: Use sh7723 GPIO on AP325RXA board
  sh: Add sh7723 pinmux code
  ...

1 files changed, 71 insertions, 0 deletions

diff --git a/arch/sh/include/asm/cmpxchg-llsc.h b/arch/sh/include/asm/cmpxchg-llsc.h
new file mode 100644
index 00000000000..aee3bf28658
--- /dev/null
+++ b/arch/sh/include/asm/cmpxchg-llsc.h
@@ -0,0 +1,71 @@
+#ifndef __ASM_SH_CMPXCHG_LLSC_H
+#define __ASM_SH_CMPXCHG_LLSC_H
+
+static inline unsigned long xchg_u32(volatile u32 *m, unsigned long val)
+{
+	unsigned long retval;
+	unsigned long tmp;
+
+	__asm__ __volatile__ (
+		"1:					\n\t"
+		"movli.l	@%1, %0	! xchg_u32	\n\t"
+		"mov		%0, %2			\n\t"
+		"mov		%4, %0			\n\t"
+		"movco.l	%0, @%1			\n\t"
+		"bf		1b			\n\t"
+		"synco					\n\t"
+		: "=&z"(tmp), "=r" (m), "=&r" (retval)
+		: "1" (m), "r" (val)
+		: "t", "memory"
+	);
+
+	return retval;
+}
+
+static inline unsigned long xchg_u8(volatile u8 *m, unsigned long val)
+{
+	unsigned long retval;
+	unsigned long tmp;
+
+	__asm__ __volatile__ (
+		"1:					\n\t"
+		"movli.l	@%1, %0	! xchg_u8	\n\t"
+		"mov		%0, %2			\n\t"
+		"mov		%4, %0			\n\t"
+		"movco.l	%0, @%1			\n\t"
+		"bf		1b			\n\t"
+		"synco					\n\t"
+		: "=&z"(tmp), "=r" (m), "=&r" (retval)
+		: "1" (m), "r" (val & 0xff)
+		: "t", "memory"
+	);
+
+	return retval;
+}
+
+static inline unsigned long
+__cmpxchg_u32(volatile int *m, unsigned long old, unsigned long new)
+{
+	unsigned long retval;
+	unsigned long tmp;
+
+	__asm__ __volatile__ (
+		"1:						\n\t"
+		"movli.l	@%1, %0	! __cmpxchg_u32		\n\t"
+		"mov		%0, %2				\n\t"
+		"cmp/eq		%2, %4				\n\t"
+		"bf		2f				\n\t"
+		"mov		%5, %0				\n\t"
+		"2:						\n\t"
+		"movco.l	%0, @%1				\n\t"
+		"bf		1b				\n\t"
+		"synco						\n\t"
+		: "=&z" (tmp), "=r" (m), "=&r" (retval)
+		: "1" (m), "r" (old), "r" (new)
+		: "t", "memory"
+	);
+
+	return retval;
+}
+
+#endif /* __ASM_SH_CMPXCHG_LLSC_H */