arch/sparc/include/asm/irqflags_32.h

   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
  17 extern void arch_local_irq_restore(unsigned long);
  18 extern unsigned long arch_local_irq_save(void);
  19 extern void arch_local_irq_enable(void);
  20
  21 static inline unsigned long arch_local_save_flags(void)
  22 {
  23         unsigned long flags;
  24
  25         asm volatile("rd        %%psr, %0" : "=r" (flags));
  26         return flags;
  27 }
  28
  29 static inline void arch_local_irq_disable(void)
  30 {
  31         arch_local_irq_save();
  32 }
  33
  34 static inline bool arch_irqs_disabled_flags(unsigned long flags)
  35 {
  36         return (flags & PSR_PIL) != 0;
  37 }
  38
  39 static inline bool arch_irqs_disabled(void)
  40 {
  41         return arch_irqs_disabled_flags(arch_local_save_flags());
  42 }
  43
  44 #endif /* (__ASSEMBLY__) */
  45
  46 #endif /* !(_ASM_IRQFLAGS_H) */