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 X86_IRQ_ALLOC_LEGACY = 0x1, 11 }; 12 13 extern int x86_fwspec_is_ioapic(struct irq_fwspec *fwspec); 14 extern int x86_fwspec_is_hpet(struct irq_fwspec *fwspec); 15 16 extern struct irq_domain *x86_vector_domain; 17 18 extern void init_irq_alloc_info(struct irq_alloc_info *info, 19 const struct cpumask *mask); 20 extern 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 25 struct device_node; 26 struct irq_data; 27 28 enum ioapic_domain_type { 29 IOAPIC_DOMAIN_INVALID, 30 IOAPIC_DOMAIN_LEGACY, 31 IOAPIC_DOMAIN_STRICT, 32 IOAPIC_DOMAIN_DYNAMIC, 33 }; 34 35 struct ioapic_domain_cfg { 36 enum ioapic_domain_type type; 37 const struct irq_domain_ops *ops; 38 struct device_node *dev; 39 }; 40 41 extern const struct irq_domain_ops mp_ioapic_irqdomain_ops; 42 43 extern int mp_irqdomain_alloc(struct irq_domain *domain, unsigned int virq, 44 unsigned int nr_irqs, void *arg); 45 extern void mp_irqdomain_free(struct irq_domain *domain, unsigned int virq, 46 unsigned int nr_irqs); 47 extern int mp_irqdomain_activate(struct irq_domain *domain, 48 struct irq_data *irq_data, bool reserve); 49 extern void mp_irqdomain_deactivate(struct irq_domain *domain, 50 struct irq_data *irq_data); 51 extern int mp_irqdomain_ioapic_idx(struct irq_domain *domain); 52 #endif /* CONFIG_X86_IO_APIC */ 53 54 #ifdef CONFIG_PCI_MSI 55 void x86_create_pci_msi_domain(void); 56 struct irq_domain *native_create_pci_msi_domain(void); 57 extern struct irq_domain *x86_pci_msi_default_domain; 58 #else x86_create_pci_msi_domain(void)59 static 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