54 lines
1.0 KiB
C
54 lines
1.0 KiB
C
/*
|
|
* linux/arch/unicore32/include/asm/irqflags.h
|
|
*
|
|
* Code specific to PKUnity SoC and UniCore ISA
|
|
*
|
|
* Copyright (C) 2001-2010 GUAN Xue-tao
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
#ifndef __UNICORE_IRQFLAGS_H__
|
|
#define __UNICORE_IRQFLAGS_H__
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#include <asm/ptrace.h>
|
|
|
|
#define ARCH_IRQ_DISABLED (PRIV_MODE | PSR_I_BIT)
|
|
#define ARCH_IRQ_ENABLED (PRIV_MODE)
|
|
|
|
/*
|
|
* Save the current interrupt enable state.
|
|
*/
|
|
static inline unsigned long arch_local_save_flags(void)
|
|
{
|
|
unsigned long temp;
|
|
|
|
asm volatile("mov %0, asr" : "=r" (temp) : : "memory", "cc");
|
|
|
|
return temp & PSR_c;
|
|
}
|
|
|
|
/*
|
|
* restore saved IRQ state
|
|
*/
|
|
static inline void arch_local_irq_restore(unsigned long flags)
|
|
{
|
|
unsigned long temp;
|
|
|
|
asm volatile(
|
|
"mov %0, asr\n"
|
|
"mov.a asr, %1\n"
|
|
"mov.f asr, %0"
|
|
: "=&r" (temp)
|
|
: "r" (flags)
|
|
: "memory", "cc");
|
|
}
|
|
|
|
#include <asm-generic/irqflags.h>
|
|
|
|
#endif
|
|
#endif
|