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
  15 extern void raw_local_irq_restore(unsigned long);
  16 extern unsigned long __raw_local_irq_save(void);
  17 extern void raw_local_irq_enable(void);
  18
  19 static 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
  32 static 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) */