arch/arm/include/asm/hardware/gic.h

/*
 *  arch/arm/include/asm/hardware/gic.h
 *
 *  Copyright (C) 2002 ARM Limited, All Rights Reserved.
 *
 * 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 __ASM_ARM_HARDWARE_GIC_H
#define __ASM_ARM_HARDWARE_GIC_H

#include <linux/compiler.h>

#define GIC_CPU_CTRL			0x00
#define GIC_CPU_PRIMASK			0x04
#define GIC_CPU_BINPOINT		0x08
#define GIC_CPU_INTACK			0x0c
#define GIC_CPU_EOI			0x10
#define GIC_CPU_RUNNINGPRI		0x14
#define GIC_CPU_HIGHPRI			0x18

#define GIC_DIST_CTRL			0x000
#define GIC_DIST_CTR			0x004
#define GIC_DIST_ENABLE_SET		0x100
#define GIC_DIST_ENABLE_CLEAR		0x180
#define GIC_DIST_PENDING_SET		0x200
#define GIC_DIST_PENDING_CLEAR		0x280
#define GIC_DIST_ACTIVE_BIT		0x300
#define GIC_DIST_PRI			0x400
#define GIC_DIST_TARGET			0x800
#define GIC_DIST_CONFIG			0xc00
#define GIC_DIST_SOFTINT		0xf00

#ifndef __ASSEMBLY__
#include <linux/irqdomain.h>
struct device_node;

extern void __iomem *gic_cpu_base_addr;
extern struct irq_chip gic_arch_extn;

void gic_init(unsigned int, int, void __iomem *, void __iomem *);
int gic_of_init(struct device_node *node, struct device_node *parent);
void gic_secondary_init(unsigned int);
void gic_cascade_irq(unsigned int gic_nr, unsigned int irq);
void gic_raise_softirq(const struct cpumask *mask, unsigned int irq);
void gic_enable_ppi(unsigned int);
bool gic_is_spi_pending(unsigned int irq);
void gic_clear_spi_pending(unsigned int irq);

struct gic_chip_data {
	unsigned int irq_offset;
	void __iomem *dist_base;
	void __iomem *cpu_base;
	unsigned int max_irq;
#ifdef CONFIG_PM
	unsigned int wakeup_irqs[32];
	unsigned int enabled_irqs[32];
#endif
#ifdef CONFIG_CPU_PM
	u32 saved_spi_enable[DIV_ROUND_UP(1020, 32)];
	u32 saved_spi_conf[DIV_ROUND_UP(1020, 16)];
	u32 saved_spi_target[DIV_ROUND_UP(1020, 4)];
	u32 __percpu *saved_ppi_enable;
	u32 __percpu *saved_ppi_conf;
#endif
#ifdef CONFIG_IRQ_DOMAIN
	struct irq_domain domain;
#endif
	unsigned int gic_irqs;
};
#endif

#endif