LXR uboot/arch/sparc/include/asm/irq.h

   1/* IRQ functions
   2 *
   3 * (C) Copyright 2007
   4 * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com.
   5 *
   6 * SPDX-License-Identifier:     GPL-2.0+
   7 */
   8
   9#ifndef __SPARC_IRQ_H__
  10#define __SPARC_IRQ_H__
  11
  12#include <asm/psr.h>
  13
  14/* Set SPARC Processor Interrupt Level */
  15static inline void set_pil(unsigned int level)
  16{
  17        unsigned int psr = get_psr();
  18
  19        put_psr((psr & ~PSR_PIL) | ((level & 0xf) << PSR_PIL_OFS));
  20}
  21
  22/* Get SPARC Processor Interrupt Level */
  23static inline unsigned int get_pil(void)
  24{
  25        unsigned int psr = get_psr();
  26        return (psr & PSR_PIL) >> PSR_PIL_OFS;
  27}
  28
  29/* Disables interrupts and return current PIL value */
  30extern int intLock(void);
  31
  32/* Sets the PIL to oldLevel */
  33extern void intUnlock(int oldLevel);
  34
  35/* Return non-zero if interrupts are currently enabled */
  36extern int interrupt_is_enabled(void);
  37
  38#endif
  39