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
11 enum 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
39 void gic_init(enum gic_type type, unsigned int nr_cpus);
40 void gic_irq_enable(unsigned int intid);
41 void gic_irq_disable(unsigned int intid);
42 unsigned int gic_get_and_ack_irq(void);
43 void gic_set_eoi(unsigned int intid);
44 void 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 */
50 void gic_set_eoi_split(bool split);
51 void gic_set_priority_mask(uint64_t mask);
52 void gic_set_priority(uint32_t intid, uint32_t prio);
53 void gic_irq_set_active(unsigned int intid);
54 void gic_irq_clear_active(unsigned int intid);
55 bool gic_irq_get_active(unsigned int intid);
56 void gic_irq_set_pending(unsigned int intid);
57 void gic_irq_clear_pending(unsigned int intid);
58 bool gic_irq_get_pending(unsigned int intid);
59 void gic_irq_set_config(unsigned int intid, bool is_edge);
60
61 void 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 */
65
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.