irqflags_32.h 1.0 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. /*
  3. * include/asm/irqflags.h
  4. *
  5. * IRQ flags handling
  6. *
  7. * This file gets included from lowlevel asm headers too, to provide
  8. * wrapped versions of the local_irq_*() APIs, based on the
  9. * arch_local_irq_*() functions from the lowlevel headers.
  10. */
  11. #ifndef _ASM_IRQFLAGS_H
  12. #define _ASM_IRQFLAGS_H
  13. #ifndef __ASSEMBLY__
  14. #include <linux/types.h>
  15. #include <asm/psr.h>
  16. void arch_local_irq_restore(unsigned long);
  17. unsigned long arch_local_irq_save(void);
  18. void arch_local_irq_enable(void);
  19. static inline notrace unsigned long arch_local_save_flags(void)
  20. {
  21. unsigned long flags;
  22. asm volatile("rd %%psr, %0" : "=r" (flags));
  23. return flags;
  24. }
  25. static inline notrace void arch_local_irq_disable(void)
  26. {
  27. arch_local_irq_save();
  28. }
  29. static inline notrace bool arch_irqs_disabled_flags(unsigned long flags)
  30. {
  31. return (flags & PSR_PIL) != 0;
  32. }
  33. static inline notrace bool arch_irqs_disabled(void)
  34. {
  35. return arch_irqs_disabled_flags(arch_local_save_flags());
  36. }
  37. #endif /* (__ASSEMBLY__) */
  38. #endif /* !(_ASM_IRQFLAGS_H) */