LXR linux/arch/sparc/include/asm/irqflags

   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
  18void arch_local_irq_restore(unsigned long);
  19unsigned long arch_local_irq_save(void);
  20void arch_local_irq_enable(void);
  21
  22static 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
  30static inline notrace void arch_local_irq_disable(void)
  31{
  32        arch_local_irq_save();
  33}
  34
  35static inline notrace bool arch_irqs_disabled_flags(unsigned long flags)
  36{
  37        return (flags & PSR_PIL) != 0;
  38}
  39
  40static 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