1/* 2 * include/asm/irqflags.h 3 * 4 * IRQ flags handling 5 * 6 * This file gets included from lowlevel asm headers too, to provide 7 * wrapped versions of the local_irq_*() APIs, based on the 8 * raw_local_irq_*() functions from the lowlevel headers. 9 */ 10#ifndef _ASM_IRQFLAGS_H 11#define _ASM_IRQFLAGS_H 12 13#ifndef __ASSEMBLY__ 14 15extern void raw_local_irq_restore(unsigned long); 16extern unsigned long __raw_local_irq_save(void); 17extern void raw_local_irq_enable(void); 18 19static inline unsigned long getipl(void) 20{ 21 unsigned long retval; 22 23 __asm__ __volatile__("rd %%psr, %0" : "=r" (retval)); 24 return retval; 25} 26 27#define raw_local_save_flags(flags) ((flags) = getipl()) 28#define raw_local_irq_save(flags) ((flags) = __raw_local_irq_save()) 29#define raw_local_irq_disable() ((void) __raw_local_irq_save()) 30#define raw_irqs_disabled() ((getipl() & PSR_PIL) != 0) 31 32static inline int raw_irqs_disabled_flags(unsigned long flags) 33{ 34 return ((flags & PSR_PIL) != 0); 35} 36 37#endif /* (__ASSEMBLY__) */ 38 39#endif /* !(_ASM_IRQFLAGS_H) */ 40