diff options
| author | Jeff Garzik <jgarzik@pobox.com> | 2005-06-30 00:49:38 -0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-06-30 00:49:38 -0400 |
| commit | e9dd2561793c05d70c9df1bc16a2dde6f23388df (patch) | |
| tree | 20099972569cc0748133a6351600fff9cbb15f4a /include/asm-arm/system.h | |
| parent | d011e151bc5d1a581bf35b492a4fde44d30382b9 (diff) | |
| parent | 0c168775709faa74c1b87f1e61046e0c51ade7f3 (diff) | |
Merge /spare/repo/netdev-2.6 branch 'ieee80211'
Diffstat (limited to 'include/asm-arm/system.h')
| -rw-r--r-- | include/asm-arm/system.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/include/asm-arm/system.h b/include/asm-arm/system.h index 3d0d2860b6d..cdf49f442fd 100644 --- a/include/asm-arm/system.h +++ b/include/asm-arm/system.h @@ -290,7 +290,6 @@ do { \ }) #ifdef CONFIG_SMP -#error SMP not supported #define smp_mb() mb() #define smp_rmb() rmb() @@ -304,6 +303,8 @@ do { \ #define smp_wmb() barrier() #define smp_read_barrier_depends() do { } while(0) +#endif /* CONFIG_SMP */ + #if defined(CONFIG_CPU_SA1100) || defined(CONFIG_CPU_SA110) /* * On the StrongARM, "swp" is terminally broken since it bypasses the @@ -316,9 +317,16 @@ do { \ * * We choose (1) since its the "easiest" to achieve here and is not * dependent on the processor type. + * + * NOTE that this solution won't work on an SMP system, so explcitly + * forbid it here. */ +#ifdef CONFIG_SMP +#error SMP is not supported on SA1100/SA110 +#else #define swp_is_buggy #endif +#endif static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size) { @@ -361,8 +369,6 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size return ret; } -#endif /* CONFIG_SMP */ - #endif /* __ASSEMBLY__ */ #define arch_align_stack(x) (x) |