165 lines
4.9 KiB
C
165 lines
4.9 KiB
C
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/*
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* include/linux/irqchip/arm-gic.h
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*
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* Copyright (C) 2002 ARM Limited, All Rights Reserved.
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* Copyright (C) 2017-2019, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __LINUX_IRQCHIP_ARM_GIC_H
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#define __LINUX_IRQCHIP_ARM_GIC_H
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#define GIC_CPU_CTRL 0x00
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#define GIC_CPU_PRIMASK 0x04
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#define GIC_CPU_BINPOINT 0x08
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#define GIC_CPU_INTACK 0x0c
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#define GIC_CPU_EOI 0x10
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#define GIC_CPU_RUNNINGPRI 0x14
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#define GIC_CPU_HIGHPRI 0x18
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#define GIC_CPU_ALIAS_BINPOINT 0x1c
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#define GIC_CPU_ACTIVEPRIO 0xd0
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#define GIC_CPU_IDENT 0xfc
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#define GIC_CPU_DEACTIVATE 0x1000
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#define GICC_ENABLE 0x1
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#define GICC_ENABLE_GRP0 0x1
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#define GICC_ENABLE_GRP1 0x2
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#define GICC_ACK_CTRL 0x4
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#define GICC_FIQ_EN 0x8
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#define GICC_CBPR 0x10
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#define GICC_INT_PRI_THRESHOLD 0xf0
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#define GIC_CPU_CTRL_EOImodeNS (1 << 9)
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#define GICC_IAR_INT_ID_MASK 0x3ff
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#define GICC_INT_SPURIOUS 1023
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#define GICC_DIS_BYPASS_MASK 0x1e0
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#define GICC_IAR_INT_ID_MASK 0x3ff
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#define GIC_DIST_CTRL 0x000
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#define GIC_DIST_CTR 0x004
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#define GIC_DIST_IIDR 0x008
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#define GIC_DIST_IGROUP 0x080
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#define GIC_DIST_ENABLE_SET 0x100
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#define GIC_DIST_ENABLE_CLEAR 0x180
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#define GIC_DIST_PENDING_SET 0x200
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#define GIC_DIST_PENDING_CLEAR 0x280
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#define GIC_DIST_ACTIVE_SET 0x300
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#define GIC_DIST_ACTIVE_CLEAR 0x380
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#define GIC_DIST_PRI 0x400
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#define GIC_DIST_TARGET 0x800
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#define GIC_DIST_CONFIG 0xc00
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#define GIC_DIST_SOFTINT 0xf00
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#define GIC_DIST_SGI_PENDING_CLEAR 0xf10
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#define GIC_DIST_SGI_PENDING_SET 0xf20
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#define GICD_ENABLE 0x1
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#define GICD_ENABLE_GRP0 0x1
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#define GICD_ENABLE_GRP1 0x2
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#define GICD_DISABLE 0x0
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#define GICD_INT_ACTLOW_LVLTRIG 0x0
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#define GICD_INT_EN_CLR_X32 0xffffffff
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#define GICD_INT_EN_SET_SGI 0x0000ffff
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#define GICD_INT_EN_CLR_PPI 0xffff0000
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#define GICD_INT_DEF_PRI 0xa0
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#define GICD_INT_DEF_PRI_X4 ((GICD_INT_DEF_PRI << 24) |\
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(GICD_INT_DEF_PRI << 16) |\
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(GICD_INT_DEF_PRI << 8) |\
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GICD_INT_DEF_PRI)
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#define GICH_HCR 0x0
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#define GICH_VTR 0x4
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#define GICH_VMCR 0x8
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#define GICH_MISR 0x10
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#define GICH_EISR0 0x20
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#define GICH_EISR1 0x24
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#define GICH_ELRSR0 0x30
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#define GICH_ELRSR1 0x34
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#define GICH_APR 0xf0
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#define GICH_LR0 0x100
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#define GICH_HCR_EN (1 << 0)
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#define GICH_HCR_UIE (1 << 1)
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#define GICH_LR_VIRTUALID (0x3ff << 0)
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#define GICH_LR_PHYSID_CPUID_SHIFT (10)
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#define GICH_LR_PHYSID_CPUID (0x3ff << GICH_LR_PHYSID_CPUID_SHIFT)
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#define GICH_LR_PRIORITY_SHIFT 23
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#define GICH_LR_STATE (3 << 28)
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#define GICH_LR_PENDING_BIT (1 << 28)
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#define GICH_LR_ACTIVE_BIT (1 << 29)
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#define GICH_LR_EOI (1 << 19)
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#define GICH_LR_HW (1 << 31)
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#define GICH_VMCR_CTRL_SHIFT 0
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#define GICH_VMCR_CTRL_MASK (0x21f << GICH_VMCR_CTRL_SHIFT)
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#define GICH_VMCR_PRIMASK_SHIFT 27
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#define GICH_VMCR_PRIMASK_MASK (0x1f << GICH_VMCR_PRIMASK_SHIFT)
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#define GICH_VMCR_BINPOINT_SHIFT 21
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#define GICH_VMCR_BINPOINT_MASK (0x7 << GICH_VMCR_BINPOINT_SHIFT)
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#define GICH_VMCR_ALIAS_BINPOINT_SHIFT 18
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#define GICH_VMCR_ALIAS_BINPOINT_MASK (0x7 << GICH_VMCR_ALIAS_BINPOINT_SHIFT)
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#define GICH_MISR_EOI (1 << 0)
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#define GICH_MISR_U (1 << 1)
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#ifndef __ASSEMBLY__
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#include <linux/irqdomain.h>
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struct device_node;
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struct gic_chip_data;
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struct gic_data {
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const struct gic_clk_data *clk_data;
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bool supports_routing;
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u32 num_interfaces;
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bool is_hv;
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};
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void gic_cascade_irq(unsigned int gic_nr, unsigned int irq);
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int gic_cpu_if_down(unsigned int gic_nr);
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void gic_cpu_save(struct gic_chip_data *gic);
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void gic_cpu_restore(struct gic_chip_data *gic);
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void gic_dist_save(struct gic_chip_data *gic);
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void gic_dist_restore(struct gic_chip_data *gic);
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bool gic_irq_is_pending(struct gic_chip_data *gic, int irq);
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bool gic_irq_is_active(struct gic_chip_data *gic, int irq);
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int gic_route_interrupt(struct gic_chip_data *gic, int irq, u32 cpu);
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void gic_clear_pending(struct gic_chip_data *gic, int irq);
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void gic_clear_active(struct gic_chip_data *gic, int irq);
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/*
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* Subdrivers that need some preparatory work can initialize their
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* chips and call this to register their GICs.
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*/
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int gic_of_init(struct device_node *node, struct device_node *parent);
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/*
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* Initialises and registers a non-root or child GIC chip. Memory for
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* the gic_chip_data structure is dynamically allocated.
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*/
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int gic_of_init_child(struct device *dev, struct gic_chip_data **gic, int irq);
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/*
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* Legacy platforms not converted to DT yet must use this to init
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* their GIC
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*/
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void gic_init(unsigned int nr, int start,
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void __iomem *dist , void __iomem *cpu);
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int gicv2m_init(struct fwnode_handle *parent_handle,
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struct irq_domain *parent);
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void gic_send_sgi(unsigned int cpu_id, unsigned int irq);
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int gic_get_cpu_id(unsigned int cpu);
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void gic_migrate_target(unsigned int new_cpu_id);
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unsigned long gic_get_sgir_physaddr(void);
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#endif /* __ASSEMBLY */
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#endif
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