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Commit f13c34b9 authored by Greentime Hu's avatar Greentime Hu
Browse files

nds32: IRQ handling 



This patch includes irq related functions and irqchip_init().

Signed-off-by: default avatarVincent Chen <vincentc@andestech.com>
Signed-off-by: default avatarGreentime Hu <greentime@andestech.com>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
parent a15e9ffa

arch/nds32/include/asm/irqflags.h

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// SPDX-License-Identifier: GPL-2.0

// Copyright (C) 2005-2017 Andes Technology Corporation



#include <asm/nds32.h>

#include <nds32_intrinsic.h>



#define arch_local_irq_disable()	\

	GIE_DISABLE();



#define arch_local_irq_enable()	\

	GIE_ENABLE();

static inline unsigned long arch_local_irq_save(void)

{

	unsigned long flags;

	flags = __nds32__mfsr(NDS32_SR_PSW) & PSW_mskGIE;

	GIE_DISABLE();

	return flags;

}



static inline unsigned long arch_local_save_flags(void)

{

	unsigned long flags;

	flags = __nds32__mfsr(NDS32_SR_PSW) & PSW_mskGIE;

	return flags;

}



static inline void arch_local_irq_restore(unsigned long flags)

{

	if(flags)

		GIE_ENABLE();

}



static inline int arch_irqs_disabled_flags(unsigned long flags)

{

	return !flags;

}

arch/nds32/kernel/irq.c

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// SPDX-License-Identifier: GPL-2.0

// Copyright (C) 2005-2017 Andes Technology Corporation



#include <linux/irqchip.h>



void __init init_IRQ(void)

{

	irqchip_init();

}