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Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * ARM Generic Interrupt Controller (GIC) specific defines
4 */
5
6#ifndef SELFTEST_KVM_GIC_H
7#define SELFTEST_KVM_GIC_H
8
9#include <asm/kvm.h>
10
11enum gic_type {
12 GIC_V3,
13 GIC_TYPE_MAX,
14};
15
16/*
17 * Note that the redistributor frames are at the end, as the range scales
18 * with the number of vCPUs in the VM.
19 */
20#define GITS_BASE_GPA 0x8000000ULL
21#define GICD_BASE_GPA (GITS_BASE_GPA + KVM_VGIC_V3_ITS_SIZE)
22#define GICR_BASE_GPA (GICD_BASE_GPA + KVM_VGIC_V3_DIST_SIZE)
23
24/* The GIC is identity-mapped into the guest at the time of setup. */
25#define GITS_BASE_GVA ((volatile void *)GITS_BASE_GPA)
26#define GICD_BASE_GVA ((volatile void *)GICD_BASE_GPA)
27#define GICR_BASE_GVA ((volatile void *)GICR_BASE_GPA)
28
29#define MIN_SGI 0
30#define MIN_PPI 16
31#define MIN_SPI 32
32#define MAX_SPI 1019
33#define IAR_SPURIOUS 1023
34
35#define INTID_IS_SGI(intid) (0 <= (intid) && (intid) < MIN_PPI)
36#define INTID_IS_PPI(intid) (MIN_PPI <= (intid) && (intid) < MIN_SPI)
37#define INTID_IS_SPI(intid) (MIN_SPI <= (intid) && (intid) <= MAX_SPI)
38
39void gic_init(enum gic_type type, unsigned int nr_cpus);
40void gic_irq_enable(unsigned int intid);
41void gic_irq_disable(unsigned int intid);
42unsigned int gic_get_and_ack_irq(void);
43void gic_set_eoi(unsigned int intid);
44void gic_set_dir(unsigned int intid);
45
46/*
47 * Sets the EOI mode. When split is false, EOI just drops the priority. When
48 * split is true, EOI drops the priority and deactivates the interrupt.
49 */
50void gic_set_eoi_split(bool split);
51void gic_set_priority_mask(uint64_t mask);
52void gic_set_priority(uint32_t intid, uint32_t prio);
53void gic_irq_set_active(unsigned int intid);
54void gic_irq_clear_active(unsigned int intid);
55bool gic_irq_get_active(unsigned int intid);
56void gic_irq_set_pending(unsigned int intid);
57void gic_irq_clear_pending(unsigned int intid);
58bool gic_irq_get_pending(unsigned int intid);
59void gic_irq_set_config(unsigned int intid, bool is_edge);
60
61void gic_rdist_enable_lpis(vm_paddr_t cfg_table, size_t cfg_table_size,
62 vm_paddr_t pend_table);
63
64#endif /* SELFTEST_KVM_GIC_H */