LXR linux/include/asm-sparc/irqflags.h

   1/*
   2 * include/asm-sparc/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