Release 4.11 include/linux/irqchip/arm-gic.h

/*
 *  include/linux/irqchip/arm-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 __LINUX_IRQCHIP_ARM_GIC_H

#define __LINUX_IRQCHIP_ARM_GIC_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_CPU_ALIAS_BINPOINT		0x1c

#define GIC_CPU_ACTIVEPRIO		0xd0

#define GIC_CPU_IDENT			0xfc

#define GIC_CPU_DEACTIVATE		0x1000


#define GICC_ENABLE			0x1

#define GICC_INT_PRI_THRESHOLD		0xf0


#define GIC_CPU_CTRL_EOImodeNS		(1 << 9)


#define GICC_IAR_INT_ID_MASK		0x3ff

#define GICC_INT_SPURIOUS		1023

#define GICC_DIS_BYPASS_MASK		0x1e0


#define GIC_DIST_CTRL			0x000

#define GIC_DIST_CTR			0x004

#define GIC_DIST_IIDR			0x008

#define GIC_DIST_IGROUP			0x080

#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_SET		0x300

#define GIC_DIST_ACTIVE_CLEAR		0x380

#define GIC_DIST_PRI			0x400

#define GIC_DIST_TARGET			0x800

#define GIC_DIST_CONFIG			0xc00

#define GIC_DIST_SOFTINT		0xf00

#define GIC_DIST_SGI_PENDING_CLEAR	0xf10

#define GIC_DIST_SGI_PENDING_SET	0xf20


#define GICD_ENABLE			0x1

#define GICD_DISABLE			0x0

#define GICD_INT_ACTLOW_LVLTRIG		0x0

#define GICD_INT_EN_CLR_X32		0xffffffff

#define GICD_INT_EN_SET_SGI		0x0000ffff

#define GICD_INT_EN_CLR_PPI		0xffff0000

#define GICD_INT_DEF_PRI		0xa0

#define GICD_INT_DEF_PRI_X4		((GICD_INT_DEF_PRI << 24) |\
                                        (GICD_INT_DEF_PRI << 16) |\
                                        (GICD_INT_DEF_PRI << 8) |\
                                        GICD_INT_DEF_PRI)


#define GICH_HCR			0x0

#define GICH_VTR			0x4

#define GICH_VMCR			0x8

#define GICH_MISR			0x10

#define GICH_EISR0 			0x20

#define GICH_EISR1 			0x24

#define GICH_ELRSR0 			0x30

#define GICH_ELRSR1 			0x34

#define GICH_APR			0xf0

#define GICH_LR0			0x100


#define GICH_HCR_EN			(1 << 0)

#define GICH_HCR_UIE			(1 << 1)


#define GICH_LR_VIRTUALID		(0x3ff << 0)

#define GICH_LR_PHYSID_CPUID_SHIFT	(10)

#define GICH_LR_PHYSID_CPUID		(0x3ff << GICH_LR_PHYSID_CPUID_SHIFT)

#define GICH_LR_PRIORITY_SHIFT		23

#define GICH_LR_STATE			(3 << 28)

#define GICH_LR_PENDING_BIT		(1 << 28)

#define GICH_LR_ACTIVE_BIT		(1 << 29)

#define GICH_LR_EOI			(1 << 19)

#define GICH_LR_HW			(1 << 31)


#define GICH_VMCR_CTRL_SHIFT		0

#define GICH_VMCR_CTRL_MASK		(0x21f << GICH_VMCR_CTRL_SHIFT)

#define GICH_VMCR_PRIMASK_SHIFT		27

#define GICH_VMCR_PRIMASK_MASK		(0x1f << GICH_VMCR_PRIMASK_SHIFT)

#define GICH_VMCR_BINPOINT_SHIFT	21

#define GICH_VMCR_BINPOINT_MASK		(0x7 << GICH_VMCR_BINPOINT_SHIFT)

#define GICH_VMCR_ALIAS_BINPOINT_SHIFT	18

#define GICH_VMCR_ALIAS_BINPOINT_MASK	(0x7 << GICH_VMCR_ALIAS_BINPOINT_SHIFT)


#define GICH_MISR_EOI			(1 << 0)

#define GICH_MISR_U			(1 << 1)


#define GICV_PMR_PRIORITY_SHIFT		3

#define GICV_PMR_PRIORITY_MASK		(0x1f << GICV_PMR_PRIORITY_SHIFT)

#ifndef __ASSEMBLY__

#include <linux/irqdomain.h>

struct device_node;
struct gic_chip_data;

void gic_cascade_irq(unsigned int gic_nr, unsigned int irq);
int gic_cpu_if_down(unsigned int gic_nr);
void gic_cpu_save(struct gic_chip_data *gic);
void gic_cpu_restore(struct gic_chip_data *gic);
void gic_dist_save(struct gic_chip_data *gic);
void gic_dist_restore(struct gic_chip_data *gic);

/*
 * Subdrivers that need some preparatory work can initialize their
 * chips and call this to register their GICs.
 */
int gic_of_init(struct device_node *node, struct device_node *parent);

/*
 * Initialises and registers a non-root or child GIC chip. Memory for
 * the gic_chip_data structure is dynamically allocated.
 */
int gic_of_init_child(struct device *dev, struct gic_chip_data **gic, int irq);

/*
 * Legacy platforms not converted to DT yet must use this to init
 * their GIC
 */
void gic_init(unsigned int nr, int start,
	      void __iomem *dist , void __iomem *cpu);

int gicv2m_init(struct fwnode_handle *parent_handle,
		struct irq_domain *parent);

void gic_send_sgi(unsigned int cpu_id, unsigned int irq);
int gic_get_cpu_id(unsigned int cpu);
void gic_migrate_target(unsigned int new_cpu_id);
unsigned long gic_get_sgir_physaddr(void);

#endif /* __ASSEMBLY */
#endif
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