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 * arch_local_irq_*() functions from the lowlevel headers. 9 */ 10 #ifndef _ASM_IRQFLAGS_H 11 #define _ASM_IRQFLAGS_H 12 13 #ifndef __ASSEMBLY__ 14 15 #include <linux/types.h> 16 #include <asm/psr.h> 17 18 void arch_local_irq_restore(unsigned long); 19 unsigned long arch_local_irq_save(void); 20 void arch_local_irq_enable(void); 21 22 static inline notrace unsigned long arch_local_save_flags(void) 23 { 24 unsigned long flags; 25 26 asm volatile("rd %%psr, %0" : "=r" (flags)); 27 return flags; 28 } 29 30 static inline notrace void arch_local_irq_disable(void) 31 { 32 arch_local_irq_save(); 33 } 34 35 static inline notrace bool arch_irqs_disabled_flags(unsigned long flags) 36 { 37 return (flags & PSR_PIL) != 0; 38 } 39 40 static inline notrace bool arch_irqs_disabled(void) 41 { 42 return arch_irqs_disabled_flags(arch_local_save_flags()); 43 } 44 45 #endif /* (__ASSEMBLY__) */ 46 47 #endif /* !(_ASM_IRQFLAGS_H) */ 48