1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * include/linux/irqchip/arm-gic.h 4 * 5 * Copyright (C) 2002 ARM Limited, All Rights Reserved. 6 */ 7 #ifndef __LINUX_IRQCHIP_ARM_GIC_H 8 #define __LINUX_IRQCHIP_ARM_GIC_H 9 10 #define GIC_CPU_CTRL 0x00 11 #define GIC_CPU_PRIMASK 0x04 12 #define GIC_CPU_BINPOINT 0x08 13 #define GIC_CPU_INTACK 0x0c 14 #define GIC_CPU_EOI 0x10 15 #define GIC_CPU_RUNNINGPRI 0x14 16 #define GIC_CPU_HIGHPRI 0x18 17 #define GIC_CPU_ALIAS_BINPOINT 0x1c 18 #define GIC_CPU_ACTIVEPRIO 0xd0 19 #define GIC_CPU_IDENT 0xfc 20 #define GIC_CPU_DEACTIVATE 0x1000 21 22 #define GICC_ENABLE 0x1 23 #define GICC_INT_PRI_THRESHOLD 0xf0 24 25 #define GIC_CPU_CTRL_EnableGrp0_SHIFT 0 26 #define GIC_CPU_CTRL_EnableGrp0 (1 << GIC_CPU_CTRL_EnableGrp0_SHIFT) 27 #define GIC_CPU_CTRL_EnableGrp1_SHIFT 1 28 #define GIC_CPU_CTRL_EnableGrp1 (1 << GIC_CPU_CTRL_EnableGrp1_SHIFT) 29 #define GIC_CPU_CTRL_AckCtl_SHIFT 2 30 #define GIC_CPU_CTRL_AckCtl (1 << GIC_CPU_CTRL_AckCtl_SHIFT) 31 #define GIC_CPU_CTRL_FIQEn_SHIFT 3 32 #define GIC_CPU_CTRL_FIQEn (1 << GIC_CPU_CTRL_FIQEn_SHIFT) 33 #define GIC_CPU_CTRL_CBPR_SHIFT 4 34 #define GIC_CPU_CTRL_CBPR (1 << GIC_CPU_CTRL_CBPR_SHIFT) 35 #define GIC_CPU_CTRL_EOImodeNS_SHIFT 9 36 #define GIC_CPU_CTRL_EOImodeNS (1 << GIC_CPU_CTRL_EOImodeNS_SHIFT) 37 38 #define GICC_IAR_INT_ID_MASK 0x3ff 39 #define GICC_INT_SPURIOUS 1023 40 #define GICC_DIS_BYPASS_MASK 0x1e0 41 42 #define GIC_DIST_CTRL 0x000 43 #define GIC_DIST_CTR 0x004 44 #define GIC_DIST_IIDR 0x008 45 #define GIC_DIST_IGROUP 0x080 46 #define GIC_DIST_ENABLE_SET 0x100 47 #define GIC_DIST_ENABLE_CLEAR 0x180 48 #define GIC_DIST_PENDING_SET 0x200 49 #define GIC_DIST_PENDING_CLEAR 0x280 50 #define GIC_DIST_ACTIVE_SET 0x300 51 #define GIC_DIST_ACTIVE_CLEAR 0x380 52 #define GIC_DIST_PRI 0x400 53 #define GIC_DIST_TARGET 0x800 54 #define GIC_DIST_CONFIG 0xc00 55 #define GIC_DIST_SOFTINT 0xf00 56 #define GIC_DIST_SGI_PENDING_CLEAR 0xf10 57 #define GIC_DIST_SGI_PENDING_SET 0xf20 58 59 #define GICD_ENABLE 0x1 60 #define GICD_DISABLE 0x0 61 #define GICD_INT_ACTLOW_LVLTRIG 0x0 62 #define GICD_INT_EN_CLR_X32 0xffffffff 63 #define GICD_INT_EN_SET_SGI 0x0000ffff 64 #define GICD_INT_EN_CLR_PPI 0xffff0000 65 66 #define GICD_IIDR_IMPLEMENTER_SHIFT 0 67 #define GICD_IIDR_IMPLEMENTER_MASK (0xfff << GICD_IIDR_IMPLEMENTER_SHIFT) 68 #define GICD_IIDR_REVISION_SHIFT 12 69 #define GICD_IIDR_REVISION_MASK (0xf << GICD_IIDR_REVISION_SHIFT) 70 #define GICD_IIDR_VARIANT_SHIFT 16 71 #define GICD_IIDR_VARIANT_MASK (0xf << GICD_IIDR_VARIANT_SHIFT) 72 #define GICD_IIDR_PRODUCT_ID_SHIFT 24 73 #define GICD_IIDR_PRODUCT_ID_MASK (0xff << GICD_IIDR_PRODUCT_ID_SHIFT) 74 75 76 #define GICH_HCR 0x0 77 #define GICH_VTR 0x4 78 #define GICH_VMCR 0x8 79 #define GICH_MISR 0x10 80 #define GICH_EISR0 0x20 81 #define GICH_EISR1 0x24 82 #define GICH_ELRSR0 0x30 83 #define GICH_ELRSR1 0x34 84 #define GICH_APR 0xf0 85 #define GICH_LR0 0x100 86 87 #define GICH_HCR_EN (1 << 0) 88 #define GICH_HCR_UIE (1 << 1) 89 #define GICH_HCR_NPIE (1 << 3) 90 91 #define GICH_LR_VIRTUALID (0x3ff << 0) 92 #define GICH_LR_PHYSID_CPUID_SHIFT (10) 93 #define GICH_LR_PHYSID_CPUID (0x3ff << GICH_LR_PHYSID_CPUID_SHIFT) 94 #define GICH_LR_PRIORITY_SHIFT 23 95 #define GICH_LR_STATE (3 << 28) 96 #define GICH_LR_PENDING_BIT (1 << 28) 97 #define GICH_LR_ACTIVE_BIT (1 << 29) 98 #define GICH_LR_EOI (1 << 19) 99 #define GICH_LR_GROUP1 (1 << 30) 100 #define GICH_LR_HW (1 << 31) 101 102 #define GICH_VMCR_ENABLE_GRP0_SHIFT 0 103 #define GICH_VMCR_ENABLE_GRP0_MASK (1 << GICH_VMCR_ENABLE_GRP0_SHIFT) 104 #define GICH_VMCR_ENABLE_GRP1_SHIFT 1 105 #define GICH_VMCR_ENABLE_GRP1_MASK (1 << GICH_VMCR_ENABLE_GRP1_SHIFT) 106 #define GICH_VMCR_ACK_CTL_SHIFT 2 107 #define GICH_VMCR_ACK_CTL_MASK (1 << GICH_VMCR_ACK_CTL_SHIFT) 108 #define GICH_VMCR_FIQ_EN_SHIFT 3 109 #define GICH_VMCR_FIQ_EN_MASK (1 << GICH_VMCR_FIQ_EN_SHIFT) 110 #define GICH_VMCR_CBPR_SHIFT 4 111 #define GICH_VMCR_CBPR_MASK (1 << GICH_VMCR_CBPR_SHIFT) 112 #define GICH_VMCR_EOI_MODE_SHIFT 9 113 #define GICH_VMCR_EOI_MODE_MASK (1 << GICH_VMCR_EOI_MODE_SHIFT) 114 115 #define GICH_VMCR_PRIMASK_SHIFT 27 116 #define GICH_VMCR_PRIMASK_MASK (0x1f << GICH_VMCR_PRIMASK_SHIFT) 117 #define GICH_VMCR_BINPOINT_SHIFT 21 118 #define GICH_VMCR_BINPOINT_MASK (0x7 << GICH_VMCR_BINPOINT_SHIFT) 119 #define GICH_VMCR_ALIAS_BINPOINT_SHIFT 18 120 #define GICH_VMCR_ALIAS_BINPOINT_MASK (0x7 << GICH_VMCR_ALIAS_BINPOINT_SHIFT) 121 122 #define GICH_MISR_EOI (1 << 0) 123 #define GICH_MISR_U (1 << 1) 124 125 #define GICV_PMR_PRIORITY_SHIFT 3 126 #define GICV_PMR_PRIORITY_MASK (0x1f << GICV_PMR_PRIORITY_SHIFT) 127 128 #ifndef __ASSEMBLY__ 129 130 #include <linux/irqdomain.h> 131 132 struct device_node; 133 struct gic_chip_data; 134 135 void gic_cascade_irq(unsigned int gic_nr, unsigned int irq); 136 int gic_cpu_if_down(unsigned int gic_nr); 137 void gic_cpu_save(struct gic_chip_data *gic); 138 void gic_cpu_restore(struct gic_chip_data *gic); 139 void gic_dist_save(struct gic_chip_data *gic); 140 void gic_dist_restore(struct gic_chip_data *gic); 141 142 /* 143 * Subdrivers that need some preparatory work can initialize their 144 * chips and call this to register their GICs. 145 */ 146 int gic_of_init(struct device_node *node, struct device_node *parent); 147 148 /* 149 * Initialises and registers a non-root or child GIC chip. Memory for 150 * the gic_chip_data structure is dynamically allocated. 151 */ 152 int gic_of_init_child(struct device *dev, struct gic_chip_data **gic, int irq); 153 154 /* 155 * Legacy platforms not converted to DT yet must use this to init 156 * their GIC 157 */ 158 void gic_init(void __iomem *dist , void __iomem *cpu); 159 160 void gic_send_sgi(unsigned int cpu_id, unsigned int irq); 161 int gic_get_cpu_id(unsigned int cpu); 162 void gic_migrate_target(unsigned int new_cpu_id); 163 unsigned long gic_get_sgir_physaddr(void); 164 165 #endif /* __ASSEMBLY */ 166 #endif 167