diff options
Diffstat (limited to 'include/asm-mips/system.h')
| -rw-r--r-- | include/asm-mips/system.h | 20 |
1 files changed, 5 insertions, 15 deletions
diff --git a/include/asm-mips/system.h b/include/asm-mips/system.h index 46bdb3f566f9..8d0b1cd4a45e 100644 --- a/include/asm-mips/system.h +++ b/include/asm-mips/system.h @@ -71,16 +71,6 @@ do { \ write_c0_userlocal(task_thread_info(current)->tp_value);\ } while(0) -/* - * On SMP systems, when the scheduler does migration-cost autodetection, - * it needs a way to flush as much of the CPU's caches as possible. - * - * TODO: fill this in! - */ -static inline void sched_cacheflush(void) -{ -} - static inline unsigned long __xchg_u32(volatile int * m, unsigned int val) { __u32 retval; @@ -127,7 +117,7 @@ static inline unsigned long __xchg_u32(volatile int * m, unsigned int val) raw_local_irq_restore(flags); /* implies memory barrier */ } - smp_mb(); + smp_llsc_mb(); return retval; } @@ -175,7 +165,7 @@ static inline __u64 __xchg_u64(volatile __u64 * m, __u64 val) raw_local_irq_restore(flags); /* implies memory barrier */ } - smp_mb(); + smp_llsc_mb(); return retval; } @@ -256,7 +246,7 @@ static inline unsigned long __cmpxchg_u32(volatile int * m, unsigned long old, raw_local_irq_restore(flags); /* implies memory barrier */ } - smp_mb(); + smp_llsc_mb(); return retval; } @@ -362,7 +352,7 @@ static inline unsigned long __cmpxchg_u64(volatile int * m, unsigned long old, raw_local_irq_restore(flags); /* implies memory barrier */ } - smp_mb(); + smp_llsc_mb(); return retval; } @@ -480,6 +470,6 @@ extern int stop_a_enabled; */ #define __ARCH_WANT_UNLOCKED_CTXSW -#define arch_align_stack(x) (x) +extern unsigned long arch_align_stack(unsigned long sp); #endif /* _ASM_SYSTEM_H */ |