diff options
Diffstat (limited to 'include/asm-i386/system.h')
| -rw-r--r-- | include/asm-i386/system.h | 20 |
1 files changed, 1 insertions, 19 deletions
diff --git a/include/asm-i386/system.h b/include/asm-i386/system.h index cab0180567f9..db398d88b1d9 100644 --- a/include/asm-i386/system.h +++ b/include/asm-i386/system.h | |||
| @@ -456,25 +456,7 @@ static inline unsigned long long __cmpxchg64(volatile void *ptr, unsigned long l | |||
| 456 | 456 | ||
| 457 | #define set_wmb(var, value) do { var = value; wmb(); } while (0) | 457 | #define set_wmb(var, value) do { var = value; wmb(); } while (0) |
| 458 | 458 | ||
| 459 | /* interrupt control.. */ | 459 | #include <linux/irqflags.h> |
| 460 | #define local_save_flags(x) do { typecheck(unsigned long,x); __asm__ __volatile__("pushfl ; popl %0":"=g" (x): /* no input */); } while (0) | ||
| 461 | #define local_irq_restore(x) do { typecheck(unsigned long,x); __asm__ __volatile__("pushl %0 ; popfl": /* no output */ :"g" (x):"memory", "cc"); } while (0) | ||
| 462 | #define local_irq_disable() __asm__ __volatile__("cli": : :"memory") | ||
| 463 | #define local_irq_enable() __asm__ __volatile__("sti": : :"memory") | ||
| 464 | /* used in the idle loop; sti takes one instruction cycle to complete */ | ||
| 465 | #define safe_halt() __asm__ __volatile__("sti; hlt": : :"memory") | ||
| 466 | /* used when interrupts are already enabled or to shutdown the processor */ | ||
| 467 | #define halt() __asm__ __volatile__("hlt": : :"memory") | ||
| 468 | |||
| 469 | #define irqs_disabled() \ | ||
| 470 | ({ \ | ||
| 471 | unsigned long flags; \ | ||
| 472 | local_save_flags(flags); \ | ||
| 473 | !(flags & (1<<9)); \ | ||
| 474 | }) | ||
| 475 | |||
| 476 | /* For spinlocks etc */ | ||
| 477 | #define local_irq_save(x) __asm__ __volatile__("pushfl ; popl %0 ; cli":"=g" (x): /* no input */ :"memory") | ||
| 478 | 460 | ||
| 479 | /* | 461 | /* |
| 480 | * disable hlt during certain critical i/o operations | 462 | * disable hlt during certain critical i/o operations |
