include/linux/amlogic/irqflags_debug_arm64.h

/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
/*
 * Copyright (c) 2019 Amlogic, Inc. All rights reserved.
 */

#ifndef __ASM_IRQFLAGS_DEBUG_ARM64_H
#define __ASM_IRQFLAGS_DEBUG_ARM64_H

#ifdef __KERNEL__

/*
 * CPU interrupt mask handling.
 */
#include <linux/amlogic/debug_lockup.h>

static inline unsigned long arch_local_irq_save(void)
{
	unsigned long flags;

	asm volatile("mrs	%0, daif	// arch_local_irq_save\n"
		     "msr	daifset, #2"
		     : "=r" (flags)
		     :
		     : "memory");
	 irq_trace_start(flags);
	return flags;
}

static inline void arch_local_irq_enable(void)
{
	irq_trace_stop(0);

	asm volatile("msr	daifclr, #2	// arch_local_irq_enable"
		     :
		     :
		     : "memory");
}

static inline void arch_local_irq_disable(void)
{
	arch_local_irq_save();
}

/*
 * Save the current interrupt enable state.
 */
static inline unsigned long arch_local_save_flags(void)
{
	unsigned long flags;

	asm volatile("mrs	%0, daif	// arch_local_save_flags"
		     : "=r" (flags)
		     :
		     : "memory");
	return flags;
}

/*
 * restore saved IRQ state
 */
static inline void arch_local_irq_restore(unsigned long flags)
{
	irq_trace_stop(flags);
	asm volatile("msr	daif, %0	// arch_local_irq_restore"
		     :
		     : "r" (flags)
		     : "memory");
}

static inline int arch_irqs_disabled_flags(unsigned long flags)
{
	return flags & PSR_I_BIT;
}

#endif
#endif