diff options
Diffstat (limited to 'include/asm-i386/irqflags.h')
| -rw-r--r-- | include/asm-i386/irqflags.h | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/include/asm-i386/irqflags.h b/include/asm-i386/irqflags.h deleted file mode 100644 index e1bdb97c07f..00000000000 --- a/include/asm-i386/irqflags.h +++ /dev/null @@ -1,127 +0,0 @@ -/* - * include/asm-i386/irqflags.h - * - * IRQ flags handling - * - * This file gets included from lowlevel asm headers too, to provide - * wrapped versions of the local_irq_*() APIs, based on the - * raw_local_irq_*() functions from the lowlevel headers. - */ -#ifndef _ASM_IRQFLAGS_H -#define _ASM_IRQFLAGS_H - -#ifndef __ASSEMBLY__ - -static inline unsigned long __raw_local_save_flags(void) -{ - unsigned long flags; - - __asm__ __volatile__( - "pushfl ; popl %0" - : "=g" (flags) - : /* no input */ - ); - - return flags; -} - -#define raw_local_save_flags(flags) \ - do { (flags) = __raw_local_save_flags(); } while (0) - -static inline void raw_local_irq_restore(unsigned long flags) -{ - __asm__ __volatile__( - "pushl %0 ; popfl" - : /* no output */ - :"g" (flags) - :"memory", "cc" - ); -} - -static inline void raw_local_irq_disable(void) -{ - __asm__ __volatile__("cli" : : : "memory"); -} - -static inline void raw_local_irq_enable(void) -{ - __asm__ __volatile__("sti" : : : "memory"); -} - -/* - * Used in the idle loop; sti takes one instruction cycle - * to complete: - */ -static inline void raw_safe_halt(void) -{ - __asm__ __volatile__("sti; hlt" : : : "memory"); -} - -/* - * Used when interrupts are already enabled or to - * shutdown the processor: - */ -static inline void halt(void) -{ - __asm__ __volatile__("hlt": : :"memory"); -} - -static inline int raw_irqs_disabled_flags(unsigned long flags) -{ - return !(flags & (1 << 9)); -} - -static inline int raw_irqs_disabled(void) -{ - unsigned long flags = __raw_local_save_flags(); - - return raw_irqs_disabled_flags(flags); -} - -/* - * For spinlocks, etc: - */ -static inline unsigned long __raw_local_irq_save(void) -{ - unsigned long flags = __raw_local_save_flags(); - - raw_local_irq_disable(); - - return flags; -} - -#define raw_local_irq_save(flags) \ - do { (flags) = __raw_local_irq_save(); } while (0) - -#endif /* __ASSEMBLY__ */ - -/* - * Do the CPU's IRQ-state tracing from assembly code. We call a - * C function, so save all the C-clobbered registers: - */ -#ifdef CONFIG_TRACE_IRQFLAGS - -# define TRACE_IRQS_ON \ - pushl %eax; \ - pushl %ecx; \ - pushl %edx; \ - call trace_hardirqs_on; \ - popl %edx; \ - popl %ecx; \ - popl %eax; - -# define TRACE_IRQS_OFF \ - pushl %eax; \ - pushl %ecx; \ - pushl %edx; \ - call trace_hardirqs_off; \ - popl %edx; \ - popl %ecx; \ - popl %eax; - -#else -# define TRACE_IRQS_ON -# define TRACE_IRQS_OFF -#endif - -#endif |
