From 93ea02bb84354370e51de803a9405f171f3edf88 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Wed, 6 Nov 2013 14:57:36 +0100 Subject: arch: Clean up asm/barrier.h implementations using asm-generic/barrier.h We're going to be adding a few new barrier primitives, and in order to avoid endless duplication make more agressive use of asm-generic/barrier.h. Change the asm-generic/barrier.h such that it allows partial barrier definitions and fills out the rest with defaults. There are a few architectures (m32r, m68k) that could probably do away with their barrier.h file entirely but are kept for now due to their unconventional nop() implementation. Suggested-by: Geert Uytterhoeven Reviewed-by: "Paul E. McKenney" Reviewed-by: Mathieu Desnoyers Signed-off-by: Peter Zijlstra Cc: Michael Ellerman Cc: Michael Neuling Cc: Russell King Cc: Heiko Carstens Cc: Linus Torvalds Cc: Martin Schwidefsky Cc: Victor Kaplansky Cc: Tony Luck Cc: Oleg Nesterov Cc: Benjamin Herrenschmidt Cc: Frederic Weisbecker Link: http://lkml.kernel.org/r/20131213150640.846368594@infradead.org Signed-off-by: Ingo Molnar --- arch/unicore32/include/asm/barrier.h | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) (limited to 'arch/unicore32') diff --git a/arch/unicore32/include/asm/barrier.h b/arch/unicore32/include/asm/barrier.h index a6620e5336b6..83d6a520f4bd 100644 --- a/arch/unicore32/include/asm/barrier.h +++ b/arch/unicore32/include/asm/barrier.h @@ -14,15 +14,6 @@ #define dsb() __asm__ __volatile__ ("" : : : "memory") #define dmb() __asm__ __volatile__ ("" : : : "memory") -#define mb() barrier() -#define rmb() barrier() -#define wmb() barrier() -#define smp_mb() barrier() -#define smp_rmb() barrier() -#define smp_wmb() barrier() -#define read_barrier_depends() do { } while (0) -#define smp_read_barrier_depends() do { } while (0) - -#define set_mb(var, value) do { var = value; smp_mb(); } while (0) +#include #endif /* __UNICORE_BARRIER_H__ */ -- cgit v1.2.3-59-g8ed1b