LXR linux/arch/unicore32/include/asm/irqflags.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * linux/arch/unicore32/include/asm/irqflags.h
   4 *
   5 * Code specific to PKUnity SoC and UniCore ISA
   6 *
   7 * Copyright (C) 2001-2010 GUAN Xue-tao
   8 */
   9#ifndef __UNICORE_IRQFLAGS_H__
  10#define __UNICORE_IRQFLAGS_H__
  11
  12#ifdef __KERNEL__
  13
  14#include <asm/ptrace.h>
  15
  16#define ARCH_IRQ_DISABLED       (PRIV_MODE | PSR_I_BIT)
  17#define ARCH_IRQ_ENABLED        (PRIV_MODE)
  18
  19/*
  20 * Save the current interrupt enable state.
  21 */
  22static inline unsigned long arch_local_save_flags(void)
  23{
  24        unsigned long temp;
  25
  26        asm volatile("mov %0, asr" : "=r" (temp) : : "memory", "cc");
  27
  28        return temp & PSR_c;
  29}
  30
  31/*
  32 * restore saved IRQ state
  33 */
  34static inline void arch_local_irq_restore(unsigned long flags)
  35{
  36        unsigned long temp;
  37
  38        asm volatile(
  39                "mov    %0, asr\n"
  40                "mov.a  asr, %1\n"
  41                "mov.f  asr, %0"
  42                : "=&r" (temp)
  43                : "r" (flags)
  44                : "memory", "cc");
  45}
  46
  47#include <asm-generic/irqflags.h>
  48
  49#endif
  50#endif
  51