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 #include <asm/psr.h>
  17
  18 extern void arch_local_irq_restore(unsigned long);
  19 extern unsigned long arch_local_irq_save(void);
  20 extern 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) */