2 * Copyright (C) 2013, 2014 ARM Limited, All Rights Reserved.
3 * Author: Marc Zyngier <marc.zyngier@arm.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 #ifndef __LINUX_IRQCHIP_ARM_GIC_V3_H
19 #define __LINUX_IRQCHIP_ARM_GIC_V3_H
21 #include <asm/sysreg.h>
24 * Distributor registers. We assume we're running non-secure, with ARE
25 * being set. Secure-only and non-ARE registers are not described.
27 #define GICD_CTLR 0x0000
28 #define GICD_TYPER 0x0004
29 #define GICD_IIDR 0x0008
30 #define GICD_STATUSR 0x0010
31 #define GICD_SETSPI_NSR 0x0040
32 #define GICD_CLRSPI_NSR 0x0048
33 #define GICD_SETSPI_SR 0x0050
34 #define GICD_CLRSPI_SR 0x0058
35 #define GICD_SEIR 0x0068
36 #define GICD_ISENABLER 0x0100
37 #define GICD_ICENABLER 0x0180
38 #define GICD_ISPENDR 0x0200
39 #define GICD_ICPENDR 0x0280
40 #define GICD_ISACTIVER 0x0300
41 #define GICD_ICACTIVER 0x0380
42 #define GICD_IPRIORITYR 0x0400
43 #define GICD_ICFGR 0x0C00
44 #define GICD_IROUTER 0x6000
45 #define GICD_PIDR2 0xFFE8
47 #define GICD_CTLR_RWP (1U << 31)
48 #define GICD_CTLR_ARE_NS (1U << 4)
49 #define GICD_CTLR_ENABLE_G1A (1U << 1)
50 #define GICD_CTLR_ENABLE_G1 (1U << 0)
52 #define GICD_TYPER_ID_BITS(typer) ((((typer) >> 19) & 0x1f) + 1)
53 #define GICD_TYPER_IRQS(typer) ((((typer) & 0x1f) + 1) * 32)
54 #define GICD_TYPER_LPIS (1U << 17)
56 #define GICD_IROUTER_SPI_MODE_ONE (0U << 31)
57 #define GICD_IROUTER_SPI_MODE_ANY (1U << 31)
59 #define GIC_PIDR2_ARCH_MASK 0xf0
60 #define GIC_PIDR2_ARCH_GICv3 0x30
61 #define GIC_PIDR2_ARCH_GICv4 0x40
64 * Re-Distributor registers, offsets from RD_base
66 #define GICR_CTLR GICD_CTLR
67 #define GICR_IIDR 0x0004
68 #define GICR_TYPER 0x0008
69 #define GICR_STATUSR GICD_STATUSR
70 #define GICR_WAKER 0x0014
71 #define GICR_SETLPIR 0x0040
72 #define GICR_CLRLPIR 0x0048
73 #define GICR_SEIR GICD_SEIR
74 #define GICR_PROPBASER 0x0070
75 #define GICR_PENDBASER 0x0078
76 #define GICR_INVLPIR 0x00A0
77 #define GICR_INVALLR 0x00B0
78 #define GICR_SYNCR 0x00C0
79 #define GICR_MOVLPIR 0x0100
80 #define GICR_MOVALLR 0x0110
81 #define GICR_PIDR2 GICD_PIDR2
83 #define GICR_WAKER_ProcessorSleep (1U << 1)
84 #define GICR_WAKER_ChildrenAsleep (1U << 2)
87 * Re-Distributor registers, offsets from SGI_base
89 #define GICR_ISENABLER0 GICD_ISENABLER
90 #define GICR_ICENABLER0 GICD_ICENABLER
91 #define GICR_ISPENDR0 GICD_ISPENDR
92 #define GICR_ICPENDR0 GICD_ICPENDR
93 #define GICR_ISACTIVER0 GICD_ISACTIVER
94 #define GICR_ICACTIVER0 GICD_ICACTIVER
95 #define GICR_IPRIORITYR0 GICD_IPRIORITYR
96 #define GICR_ICFGR0 GICD_ICFGR
98 #define GICR_TYPER_VLPIS (1U << 1)
99 #define GICR_TYPER_LAST (1U << 4)
102 * CPU interface registers
104 #define ICC_CTLR_EL1_EOImode_drop_dir (0U << 1)
105 #define ICC_CTLR_EL1_EOImode_drop (1U << 1)
106 #define ICC_SRE_EL1_SRE (1U << 0)
109 * Hypervisor interface registers (SRE only)
111 #define ICH_LR_VIRTUAL_ID_MASK ((1UL << 32) - 1)
113 #define ICH_LR_EOI (1UL << 41)
114 #define ICH_LR_GROUP (1UL << 60)
115 #define ICH_LR_STATE (3UL << 62)
116 #define ICH_LR_PENDING_BIT (1UL << 62)
117 #define ICH_LR_ACTIVE_BIT (1UL << 63)
119 #define ICH_MISR_EOI (1 << 0)
120 #define ICH_MISR_U (1 << 1)
122 #define ICH_HCR_EN (1 << 0)
123 #define ICH_HCR_UIE (1 << 1)
125 #define ICH_VMCR_CTLR_SHIFT 0
126 #define ICH_VMCR_CTLR_MASK (0x21f << ICH_VMCR_CTLR_SHIFT)
127 #define ICH_VMCR_BPR1_SHIFT 18
128 #define ICH_VMCR_BPR1_MASK (7 << ICH_VMCR_BPR1_SHIFT)
129 #define ICH_VMCR_BPR0_SHIFT 21
130 #define ICH_VMCR_BPR0_MASK (7 << ICH_VMCR_BPR0_SHIFT)
131 #define ICH_VMCR_PMR_SHIFT 24
132 #define ICH_VMCR_PMR_MASK (0xffUL << ICH_VMCR_PMR_SHIFT)
134 #define ICC_EOIR1_EL1 sys_reg(3, 0, 12, 12, 1)
135 #define ICC_IAR1_EL1 sys_reg(3, 0, 12, 12, 0)
136 #define ICC_SGI1R_EL1 sys_reg(3, 0, 12, 11, 5)
137 #define ICC_PMR_EL1 sys_reg(3, 0, 4, 6, 0)
138 #define ICC_CTLR_EL1 sys_reg(3, 0, 12, 12, 4)
139 #define ICC_SRE_EL1 sys_reg(3, 0, 12, 12, 5)
140 #define ICC_GRPEN1_EL1 sys_reg(3, 0, 12, 12, 7)
142 #define ICC_IAR1_EL1_SPURIOUS 0x3ff
144 #define ICC_SRE_EL2 sys_reg(3, 4, 12, 9, 5)
146 #define ICC_SRE_EL2_SRE (1 << 0)
147 #define ICC_SRE_EL2_ENABLE (1 << 3)
150 * System register definitions
152 #define ICH_VSEIR_EL2 sys_reg(3, 4, 12, 9, 4)
153 #define ICH_HCR_EL2 sys_reg(3, 4, 12, 11, 0)
154 #define ICH_VTR_EL2 sys_reg(3, 4, 12, 11, 1)
155 #define ICH_MISR_EL2 sys_reg(3, 4, 12, 11, 2)
156 #define ICH_EISR_EL2 sys_reg(3, 4, 12, 11, 3)
157 #define ICH_ELSR_EL2 sys_reg(3, 4, 12, 11, 5)
158 #define ICH_VMCR_EL2 sys_reg(3, 4, 12, 11, 7)
160 #define __LR0_EL2(x) sys_reg(3, 4, 12, 12, x)
161 #define __LR8_EL2(x) sys_reg(3, 4, 12, 13, x)
163 #define ICH_LR0_EL2 __LR0_EL2(0)
164 #define ICH_LR1_EL2 __LR0_EL2(1)
165 #define ICH_LR2_EL2 __LR0_EL2(2)
166 #define ICH_LR3_EL2 __LR0_EL2(3)
167 #define ICH_LR4_EL2 __LR0_EL2(4)
168 #define ICH_LR5_EL2 __LR0_EL2(5)
169 #define ICH_LR6_EL2 __LR0_EL2(6)
170 #define ICH_LR7_EL2 __LR0_EL2(7)
171 #define ICH_LR8_EL2 __LR8_EL2(0)
172 #define ICH_LR9_EL2 __LR8_EL2(1)
173 #define ICH_LR10_EL2 __LR8_EL2(2)
174 #define ICH_LR11_EL2 __LR8_EL2(3)
175 #define ICH_LR12_EL2 __LR8_EL2(4)
176 #define ICH_LR13_EL2 __LR8_EL2(5)
177 #define ICH_LR14_EL2 __LR8_EL2(6)
178 #define ICH_LR15_EL2 __LR8_EL2(7)
180 #define __AP0Rx_EL2(x) sys_reg(3, 4, 12, 8, x)
181 #define ICH_AP0R0_EL2 __AP0Rx_EL2(0)
182 #define ICH_AP0R1_EL2 __AP0Rx_EL2(1)
183 #define ICH_AP0R2_EL2 __AP0Rx_EL2(2)
184 #define ICH_AP0R3_EL2 __AP0Rx_EL2(3)
186 #define __AP1Rx_EL2(x) sys_reg(3, 4, 12, 9, x)
187 #define ICH_AP1R0_EL2 __AP1Rx_EL2(0)
188 #define ICH_AP1R1_EL2 __AP1Rx_EL2(1)
189 #define ICH_AP1R2_EL2 __AP1Rx_EL2(2)
190 #define ICH_AP1R3_EL2 __AP1Rx_EL2(3)
194 #include <linux/stringify.h>
198 void __iomem *rd_base;
199 struct page *pend_page;
200 phys_addr_t phys_base;
202 struct page *prop_page;
207 static inline void gic_write_eoir(u64 irq)
209 asm volatile("msr_s " __stringify(ICC_EOIR1_EL1) ", %0" : : "r" (irq));