/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_IRQDOMAIN_H #define _ASM_IRQDOMAIN_H #include <linux/irqdomain.h> #include <asm/hw_irq.h> #ifdef CONFIG_X86_LOCAL_APIC enum { /* Allocate contiguous CPU vectors */ X86_IRQ_ALLOC_CONTIGUOUS_VECTORS = 0x1, X86_IRQ_ALLOC_LEGACY = 0x2, }; extern struct irq_domain *x86_vector_domain; extern void init_irq_alloc_info(struct irq_alloc_info *info, const struct cpumask *mask); extern void copy_irq_alloc_info(struct irq_alloc_info *dst, struct irq_alloc_info *src); #endif /* CONFIG_X86_LOCAL_APIC */ #ifdef CONFIG_X86_IO_APIC struct device_node; struct irq_data; enum ioapic_domain_type { IOAPIC_DOMAIN_INVALID, IOAPIC_DOMAIN_LEGACY, IOAPIC_DOMAIN_STRICT, IOAPIC_DOMAIN_DYNAMIC, }; struct ioapic_domain_cfg { enum ioapic_domain_type type; const struct irq_domain_ops *ops; struct device_node *dev; }; extern const struct irq_domain_ops mp_ioapic_irqdomain_ops; extern int mp_irqdomain_alloc(struct irq_domain *domain, unsigned int virq, unsigned int nr_irqs, void *arg); extern void mp_irqdomain_free(struct irq_domain *domain, unsigned int virq, unsigned int nr_irqs); extern int mp_irqdomain_activate(struct irq_domain *domain, struct irq_data *irq_data, bool reserve); extern void mp_irqdomain_deactivate(struct irq_domain *domain, struct irq_data *irq_data); extern int mp_irqdomain_ioapic_idx(struct irq_domain *domain); #endif /* CONFIG_X86_IO_APIC */ #ifdef CONFIG_PCI_MSI extern void arch_init_msi_domain(struct irq_domain *domain); #else static inline void arch_init_msi_domain(struct irq_domain *domain) { } #endif #endif