root/arch/unicore32/include/asm/irqflags.h

INCLUDED FROM

DEFINITIONS

1. arch_local_save_flags
2. arch_local_irq_restore

   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  */
  22 static 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  */
  34 static 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