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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* include/linux/irqchip/arm-gic.h
*
* Copyright (C) 2002 ARM Limited, All Rights Reserved.
*/
#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_EnableGrp0_SHIFT 0
#define GIC_CPU_CTRL_EnableGrp0 (1 << GIC_CPU_CTRL_EnableGrp0_SHIFT)
#define GIC_CPU_CTRL_EnableGrp1_SHIFT 1
#define GIC_CPU_CTRL_EnableGrp1 (1 << GIC_CPU_CTRL_EnableGrp1_SHIFT)
#define GIC_CPU_CTRL_AckCtl_SHIFT 2
#define GIC_CPU_CTRL_AckCtl (1 << GIC_CPU_CTRL_AckCtl_SHIFT)
#define GIC_CPU_CTRL_FIQEn_SHIFT 3
#define GIC_CPU_CTRL_FIQEn (1 << GIC_CPU_CTRL_FIQEn_SHIFT)
#define GIC_CPU_CTRL_CBPR_SHIFT 4
#define GIC_CPU_CTRL_CBPR (1 << GIC_CPU_CTRL_CBPR_SHIFT)
#define GIC_CPU_CTRL_EOImodeNS_SHIFT 9
#define GIC_CPU_CTRL_EOImodeNS (1 << GIC_CPU_CTRL_EOImodeNS_SHIFT)
#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_IIDR_IMPLEMENTER_SHIFT 0
#define GICD_IIDR_IMPLEMENTER_MASK (0xfff << GICD_IIDR_IMPLEMENTER_SHIFT)
#define GICD_IIDR_REVISION_SHIFT 12
#define GICD_IIDR_REVISION_MASK (0xf << GICD_IIDR_REVISION_SHIFT)
#define GICD_IIDR_VARIANT_SHIFT 16
#define GICD_IIDR_VARIANT_MASK (0xf << GICD_IIDR_VARIANT_SHIFT)
#define GICD_IIDR_PRODUCT_ID_SHIFT 24
#define GICD_IIDR_PRODUCT_ID_MASK (0xff << GICD_IIDR_PRODUCT_ID_SHIFT)
#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_HCR_NPIE (1 << 3)
#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_GROUP1 (1 << 30)
#define GICH_LR_HW (1 << 31)
#define GICH_VMCR_ENABLE_GRP0_SHIFT 0
#define GICH_VMCR_ENABLE_GRP0_MASK (1 << GICH_VMCR_ENABLE_GRP0_SHIFT)
#define GICH_VMCR_ENABLE_GRP1_SHIFT 1
#define GICH_VMCR_ENABLE_GRP1_MASK (1 << GICH_VMCR_ENABLE_GRP1_SHIFT)
#define GICH_VMCR_ACK_CTL_SHIFT 2
#define GICH_VMCR_ACK_CTL_MASK (1 << GICH_VMCR_ACK_CTL_SHIFT)
#define GICH_VMCR_FIQ_EN_SHIFT 3
#define GICH_VMCR_FIQ_EN_MASK (1 << GICH_VMCR_FIQ_EN_SHIFT)
#define GICH_VMCR_CBPR_SHIFT 4
#define GICH_VMCR_CBPR_MASK (1 << GICH_VMCR_CBPR_SHIFT)
#define GICH_VMCR_EOI_MODE_SHIFT 9
#define GICH_VMCR_EOI_MODE_MASK (1 << GICH_VMCR_EOI_MODE_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(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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