csky: IRQ handling

/* SPDX-License-Identifier: GPL-2.0 */

#ifndef __ASM_CSKY_IRQFLAGS_H

#define __ASM_CSKY_IRQFLAGS_H

#include <abi/reg_ops.h>

static inline unsigned long arch_local_irq_save(void)

{

	unsigned long flags;

	flags = mfcr("psr");

	asm volatile("psrclr ie\n":::"memory");

	return flags;

}

#define arch_local_irq_save arch_local_irq_save

static inline void arch_local_irq_enable(void)

{

	asm volatile("psrset ee, ie\n":::"memory");

}

#define arch_local_irq_enable arch_local_irq_enable

static inline void arch_local_irq_disable(void)

{

	asm volatile("psrclr ie\n":::"memory");

}

#define arch_local_irq_disable arch_local_irq_disable

static inline unsigned long arch_local_save_flags(void)

{

	return mfcr("psr");

}

#define arch_local_save_flags arch_local_save_flags

static inline void arch_local_irq_restore(unsigned long flags)

{

	mtcr("psr", flags);

}

#define arch_local_irq_restore arch_local_irq_restore

static inline int arch_irqs_disabled_flags(unsigned long flags)

{

	return !(flags & (1<<6));

}

#define arch_irqs_disabled_flags arch_irqs_disabled_flags

#include <asm-generic/irqflags.h>

#endif /* __ASM_CSKY_IRQFLAGS_H */

// SPDX-License-Identifier: GPL-2.0

// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.

#include <linux/init.h>

#include <linux/interrupt.h>

#include <linux/irq.h>

#include <linux/irqchip.h>

#include <asm/traps.h>

#include <asm/smp.h>

void __init init_IRQ(void)

{

	irqchip_init();

#ifdef CONFIG_SMP

	setup_smp_ipi();

#endif

}

asmlinkage void __irq_entry csky_do_IRQ(struct pt_regs *regs)

{

	handle_arch_irq(regs);

}