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authorArnd Bergmann <arnd@arndb.de>2012-04-22 22:22:34 +0200
committerArnd Bergmann <arnd@arndb.de>2012-04-22 22:28:48 +0200
commit6540afeae0c66c99c24d43446dab90836170a4e6 (patch)
tree9d4ed5065c9ad95ad8bc4a26a6f5924e83019acd /arch/alpha/include/asm/atomic.h
parent17d2f847e6aa1181024cb881fdc6cbad18f11b04 (diff)
parent39ecc143b4c1f3d42e8300e7f5274681b99f95c2 (diff)
Merge tag 'at91-3.5-cleanup' of git://github.com/at91linux/linux-at91 into next/cleanup
Nicolas Ferre <nicolas.ferre@atmel.com> writes: First batch of AT91 cleanup for 3.5 kernel. - The biggest improvement of this series is the ability to compile several AT91 SoCs in one kernel image. For now on it's limited to the DT-enabled boards but we can compile all the core together. - The Kconfig series is stacked before other patches as it is simple and non-intrusive. Its goal is to remove too restrictive dependencies on SoC names. This will allow to add support for newer SoC seamlessly. - Some very "cosmetic" Kconfig changes are also added (entry names, comments, etc.). * tag 'at91-3.5-cleanup' of git://github.com/at91linux/linux-at91: (19 commits) ARM: at91: add defconfig for device tree ARM: at91/dt: do not specify the board any more ARN: at91: introduce SOC_AT91xxx define to allow to compile SoC core support ARM: at91: add SOC_AT91SAM9 kconfig option to factorise select ARM: at91: pm select memory controler at runtime ARM: at91: move at91_init_leds to board init ARM: at91: do not pin mux the UARTs in init_early ARM: at91: drop at91_set_serial_console ARM: at91: uncompress: autodetect the uart to use ARM: at91: uncompress Store UART address in a variable hwrng: Kconfig: remove dependency for atmel-rng driver Input: Kconfig: remove dependency for atmel_tsadcc driver rtc: Kconfig: remove dependency for AT91 rtc driver ARM: at91/Kconfig: website link for AT91SAM9G20-EK ARM: at91/Kconfig: add AT91SAM9x5 family to AT91_EARLY_DBGU0 entry ARM: at91/Kconfig: add clarifications to AT91SAM9M10G45-EK entry ARM: at91/Kconfig: add comment to at91sam9x5 family entry ARM: at91/Kconfig: change at91sam9g45 entry ARM: at91: change AT91 Kconfig entry comment Also updates the cleanup branch to v3.4-rc3. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/alpha/include/asm/atomic.h')
-rw-r--r--arch/alpha/include/asm/atomic.h68
1 files changed, 1 insertions, 67 deletions
diff --git a/arch/alpha/include/asm/atomic.h b/arch/alpha/include/asm/atomic.h
index f62251e82ffa..3bb7ffeae3bc 100644
--- a/arch/alpha/include/asm/atomic.h
+++ b/arch/alpha/include/asm/atomic.h
@@ -3,6 +3,7 @@
#include <linux/types.h>
#include <asm/barrier.h>
+#include <asm/cmpxchg.h>
/*
* Atomic operations that C can't guarantee us. Useful for
@@ -168,73 +169,6 @@ static __inline__ long atomic64_sub_return(long i, atomic64_t * v)
return result;
}
-/*
- * Atomic exchange routines.
- */
-
-#define __ASM__MB
-#define ____xchg(type, args...) __xchg ## type ## _local(args)
-#define ____cmpxchg(type, args...) __cmpxchg ## type ## _local(args)
-#include <asm/xchg.h>
-
-#define xchg_local(ptr,x) \
- ({ \
- __typeof__(*(ptr)) _x_ = (x); \
- (__typeof__(*(ptr))) __xchg_local((ptr), (unsigned long)_x_, \
- sizeof(*(ptr))); \
- })
-
-#define cmpxchg_local(ptr, o, n) \
- ({ \
- __typeof__(*(ptr)) _o_ = (o); \
- __typeof__(*(ptr)) _n_ = (n); \
- (__typeof__(*(ptr))) __cmpxchg_local((ptr), (unsigned long)_o_, \
- (unsigned long)_n_, \
- sizeof(*(ptr))); \
- })
-
-#define cmpxchg64_local(ptr, o, n) \
- ({ \
- BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
- cmpxchg_local((ptr), (o), (n)); \
- })
-
-#ifdef CONFIG_SMP
-#undef __ASM__MB
-#define __ASM__MB "\tmb\n"
-#endif
-#undef ____xchg
-#undef ____cmpxchg
-#define ____xchg(type, args...) __xchg ##type(args)
-#define ____cmpxchg(type, args...) __cmpxchg ##type(args)
-#include <asm/xchg.h>
-
-#define xchg(ptr,x) \
- ({ \
- __typeof__(*(ptr)) _x_ = (x); \
- (__typeof__(*(ptr))) __xchg((ptr), (unsigned long)_x_, \
- sizeof(*(ptr))); \
- })
-
-#define cmpxchg(ptr, o, n) \
- ({ \
- __typeof__(*(ptr)) _o_ = (o); \
- __typeof__(*(ptr)) _n_ = (n); \
- (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_, \
- (unsigned long)_n_, sizeof(*(ptr)));\
- })
-
-#define cmpxchg64(ptr, o, n) \
- ({ \
- BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
- cmpxchg((ptr), (o), (n)); \
- })
-
-#undef __ASM__MB
-#undef ____cmpxchg
-
-#define __HAVE_ARCH_CMPXCHG 1
-
#define atomic64_cmpxchg(v, old, new) (cmpxchg(&((v)->counter), old, new))
#define atomic64_xchg(v, new) (xchg(&((v)->counter), new))