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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/tools/testing/selftests/kvm/include/arm64/gic.h
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/* SPDX-License-Identifier: GPL-2.0 */

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/*

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 * ARM Generic Interrupt Controller (GIC) specific defines

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 */

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#ifndef SELFTEST_KVM_GIC_H

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#define SELFTEST_KVM_GIC_H

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#include <asm/kvm.h>

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enum gic_type {

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	GIC_V3,

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	GIC_TYPE_MAX,

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};

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/*

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 * Note that the redistributor frames are at the end, as the range scales

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 * with the number of vCPUs in the VM.

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 */

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#define GITS_BASE_GPA		0x8000000ULL

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#define GICD_BASE_GPA		(GITS_BASE_GPA + KVM_VGIC_V3_ITS_SIZE)

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#define GICR_BASE_GPA		(GICD_BASE_GPA + KVM_VGIC_V3_DIST_SIZE)

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/* The GIC is identity-mapped into the guest at the time of setup. */

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#define GITS_BASE_GVA		((volatile void *)GITS_BASE_GPA)

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#define GICD_BASE_GVA		((volatile void *)GICD_BASE_GPA)

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#define GICR_BASE_GVA		((volatile void *)GICR_BASE_GPA)

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#define MIN_SGI			0

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#define MIN_PPI			16

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#define MIN_SPI			32

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#define MAX_SPI			1019

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#define IAR_SPURIOUS		1023

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#define INTID_IS_SGI(intid)	(0       <= (intid) && (intid) < MIN_PPI)

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#define INTID_IS_PPI(intid)	(MIN_PPI <= (intid) && (intid) < MIN_SPI)

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#define INTID_IS_SPI(intid)	(MIN_SPI <= (intid) && (intid) <= MAX_SPI)

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void gic_init(enum gic_type type, unsigned int nr_cpus);

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void gic_irq_enable(unsigned int intid);

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void gic_irq_disable(unsigned int intid);

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unsigned int gic_get_and_ack_irq(void);

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void gic_set_eoi(unsigned int intid);

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void gic_set_dir(unsigned int intid);

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/*

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 * Sets the EOI mode. When split is false, EOI just drops the priority. When

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 * split is true, EOI drops the priority and deactivates the interrupt.

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 */

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void gic_set_eoi_split(bool split);

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void gic_set_priority_mask(uint64_t mask);

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void gic_set_priority(uint32_t intid, uint32_t prio);

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void gic_irq_set_active(unsigned int intid);

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void gic_irq_clear_active(unsigned int intid);

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bool gic_irq_get_active(unsigned int intid);

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void gic_irq_set_pending(unsigned int intid);

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void gic_irq_clear_pending(unsigned int intid);

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bool gic_irq_get_pending(unsigned int intid);

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void gic_irq_set_config(unsigned int intid, bool is_edge);

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void gic_irq_set_group(unsigned int intid, bool group);

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void gic_rdist_enable_lpis(vm_paddr_t cfg_table, size_t cfg_table_size,

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			   vm_paddr_t pend_table);

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#endif /* SELFTEST_KVM_GIC_H */

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