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 9 enum { 10 /* Allocate contiguous CPU vectors */ 11 X86_IRQ_ALLOC_CONTIGUOUS_VECTORS = 0x1, 12 }; 13 14 extern struct irq_domain *x86_vector_domain; 15 16 extern void init_irq_alloc_info(struct irq_alloc_info *info, 17 const struct cpumask *mask); 18 extern void copy_irq_alloc_info(struct irq_alloc_info *dst, 19 struct irq_alloc_info *src); 20 #endif /* CONFIG_X86_LOCAL_APIC */ 21 22 #ifdef CONFIG_X86_IO_APIC 23 struct device_node; 24 struct irq_data; 25 26 enum ioapic_domain_type { 27 IOAPIC_DOMAIN_INVALID, 28 IOAPIC_DOMAIN_LEGACY, 29 IOAPIC_DOMAIN_STRICT, 30 IOAPIC_DOMAIN_DYNAMIC, 31 }; 32 33 struct ioapic_domain_cfg { 34 enum ioapic_domain_type type; 35 const struct irq_domain_ops *ops; 36 struct device_node *dev; 37 }; 38 39 extern const struct irq_domain_ops mp_ioapic_irqdomain_ops; 40 41 extern int mp_irqdomain_alloc(struct irq_domain *domain, unsigned int virq, 42 unsigned int nr_irqs, void *arg); 43 extern void mp_irqdomain_free(struct irq_domain *domain, unsigned int virq, 44 unsigned int nr_irqs); 45 extern void mp_irqdomain_activate(struct irq_domain *domain, 46 struct irq_data *irq_data); 47 extern void mp_irqdomain_deactivate(struct irq_domain *domain, 48 struct irq_data *irq_data); 49 extern int mp_irqdomain_ioapic_idx(struct irq_domain *domain); 50 #endif /* CONFIG_X86_IO_APIC */ 51 52 #ifdef CONFIG_PCI_MSI 53 extern void arch_init_msi_domain(struct irq_domain *domain); 54 #else 55 static inline void arch_init_msi_domain(struct irq_domain *domain) { } 56 #endif 57 58 #ifdef CONFIG_HT_IRQ 59 extern void arch_init_htirq_domain(struct irq_domain *domain); 60 #else 61 static inline void arch_init_htirq_domain(struct irq_domain *domain) { } 62 #endif 63 64 #endif 65