1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _ASM_IRQDOMAIN_H 3#define _ASM_IRQDOMAIN_H 4 5#include <linux/irqdomain.h> 6#include <asm/hw_irq.h> 7 8#ifdef CONFIG_X86_LOCAL_APIC 9enum { 10 X86_IRQ_ALLOC_LEGACY = 0x1, 11}; 12 13extern int x86_fwspec_is_ioapic(struct irq_fwspec *fwspec); 14extern int x86_fwspec_is_hpet(struct irq_fwspec *fwspec); 15 16extern struct irq_domain *x86_vector_domain; 17 18extern void init_irq_alloc_info(struct irq_alloc_info *info, 19 const struct cpumask *mask); 20extern void copy_irq_alloc_info(struct irq_alloc_info *dst, 21 struct irq_alloc_info *src); 22#endif /* CONFIG_X86_LOCAL_APIC */ 23 24#ifdef CONFIG_X86_IO_APIC 25struct device_node; 26struct irq_data; 27 28enum ioapic_domain_type { 29 IOAPIC_DOMAIN_INVALID, 30 IOAPIC_DOMAIN_LEGACY, 31 IOAPIC_DOMAIN_STRICT, 32 IOAPIC_DOMAIN_DYNAMIC, 33}; 34 35struct ioapic_domain_cfg { 36 enum ioapic_domain_type type; 37 const struct irq_domain_ops *ops; 38 struct device_node *dev; 39}; 40 41extern const struct irq_domain_ops mp_ioapic_irqdomain_ops; 42 43extern int mp_irqdomain_alloc(struct irq_domain *domain, unsigned int virq, 44 unsigned int nr_irqs, void *arg); 45extern void mp_irqdomain_free(struct irq_domain *domain, unsigned int virq, 46 unsigned int nr_irqs); 47extern int mp_irqdomain_activate(struct irq_domain *domain, 48 struct irq_data *irq_data, bool reserve); 49extern void mp_irqdomain_deactivate(struct irq_domain *domain, 50 struct irq_data *irq_data); 51extern int mp_irqdomain_ioapic_idx(struct irq_domain *domain); 52#endif /* CONFIG_X86_IO_APIC */ 53 54#ifdef CONFIG_PCI_MSI 55void x86_create_pci_msi_domain(void); 56struct irq_domain *native_create_pci_msi_domain(void); 57extern struct irq_domain *x86_pci_msi_default_domain; 58#else 59static inline void x86_create_pci_msi_domain(void) { } 60#define native_create_pci_msi_domain NULL 61#define x86_pci_msi_default_domain NULL 62#endif 63 64#endif 65