diff options
| author | Andrew Morton <akpm@osdl.org> | 2005-10-24 23:05:58 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-10-25 09:32:46 -0700 |
| commit | 0db9ae4a79381a5a3d272ccb51851c48c4bcbb6d (patch) | |
| tree | 2799d939a04135e036eece1159771badac48e6e8 /include/asm-alpha/system.h | |
| parent | c14e2cfc18659c6ca67c2e10417c432eb978d976 (diff) | |
| download | lwn-0db9ae4a79381a5a3d272ccb51851c48c4bcbb6d.tar.gz lwn-0db9ae4a79381a5a3d272ccb51851c48c4bcbb6d.zip | |
[PATCH] alpha: atomic dependency fix
My alpha build is exploding because asm/atomic.h now needs smb_mb(), which is
over in the (not included) system.h.
I fear what will happen if I include system.h into atomic.h, so let's put the
barriers into their own header file.
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-alpha/system.h')
| -rw-r--r-- | include/asm-alpha/system.h | 31 |
1 files changed, 1 insertions, 30 deletions
diff --git a/include/asm-alpha/system.h b/include/asm-alpha/system.h index bdb4d66418f1..050e86d12891 100644 --- a/include/asm-alpha/system.h +++ b/include/asm-alpha/system.h @@ -4,6 +4,7 @@ #include <linux/config.h> #include <asm/pal.h> #include <asm/page.h> +#include <asm/barrier.h> /* * System defines.. Note that this is included both from .c and .S @@ -139,36 +140,6 @@ extern void halt(void) __attribute__((noreturn)); struct task_struct; extern struct task_struct *alpha_switch_to(unsigned long, struct task_struct*); -#define mb() \ -__asm__ __volatile__("mb": : :"memory") - -#define rmb() \ -__asm__ __volatile__("mb": : :"memory") - -#define wmb() \ -__asm__ __volatile__("wmb": : :"memory") - -#define read_barrier_depends() \ -__asm__ __volatile__("mb": : :"memory") - -#ifdef CONFIG_SMP -#define smp_mb() mb() -#define smp_rmb() rmb() -#define smp_wmb() wmb() -#define smp_read_barrier_depends() read_barrier_depends() -#else -#define smp_mb() barrier() -#define smp_rmb() barrier() -#define smp_wmb() barrier() -#define smp_read_barrier_depends() barrier() -#endif - -#define set_mb(var, value) \ -do { var = value; mb(); } while (0) - -#define set_wmb(var, value) \ -do { var = value; wmb(); } while (0) - #define imb() \ __asm__ __volatile__ ("call_pal %0 #imb" : : "i" (PAL_imb) : "memory") |