diff options
Diffstat (limited to 'include/asm-m68k/system.h')
| -rw-r--r-- | include/asm-m68k/system.h | 33 |
1 files changed, 16 insertions, 17 deletions
diff --git a/include/asm-m68k/system.h b/include/asm-m68k/system.h index 198878b53a6..caa9b1663e4 100644 --- a/include/asm-m68k/system.h +++ b/include/asm-m68k/system.h @@ -46,6 +46,22 @@ asmlinkage void resume(void); } while (0) +/* + * Force strict CPU ordering. + * Not really required on m68k... + */ +#define nop() do { asm volatile ("nop"); barrier(); } while (0) +#define mb() barrier() +#define rmb() barrier() +#define wmb() barrier() +#define read_barrier_depends() ((void)0) +#define set_mb(var, value) ({ (var) = (value); wmb(); }) + +#define smp_mb() barrier() +#define smp_rmb() barrier() +#define smp_wmb() barrier() +#define smp_read_barrier_depends() ((void)0) + /* interrupt control.. */ #if 0 #define local_irq_enable() asm volatile ("andiw %0,%%sr": : "i" (ALLOWINT) : "memory") @@ -70,23 +86,6 @@ static inline int irqs_disabled(void) /* For spinlocks etc */ #define local_irq_save(x) ({ local_save_flags(x); local_irq_disable(); }) -/* - * Force strict CPU ordering. - * Not really required on m68k... - */ -#define nop() do { asm volatile ("nop"); barrier(); } while (0) -#define mb() barrier() -#define rmb() barrier() -#define wmb() barrier() -#define read_barrier_depends() ((void)0) -#define set_mb(var, value) ({ (var) = (value); wmb(); }) - -#define smp_mb() barrier() -#define smp_rmb() barrier() -#define smp_wmb() barrier() -#define smp_read_barrier_depends() ((void)0) - - #define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) struct __xchg_dummy { unsigned long a[100]; }; |