| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 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 | X86_IRQ_ALLOC_LEGACY = 0x2, |
| 13 | }; |
| 14 | |
| 15 | extern struct irq_domain *x86_vector_domain; |
| 16 | |
| 17 | extern void init_irq_alloc_info(struct irq_alloc_info *info, |
| 18 | const struct cpumask *mask); |
| 19 | extern void copy_irq_alloc_info(struct irq_alloc_info *dst, |
| 20 | struct irq_alloc_info *src); |
| 21 | #endif /* CONFIG_X86_LOCAL_APIC */ |
| 22 | |
| 23 | #ifdef CONFIG_X86_IO_APIC |
| 24 | struct device_node; |
| 25 | struct irq_data; |
| 26 | |
| 27 | enum ioapic_domain_type { |
| 28 | IOAPIC_DOMAIN_INVALID, |
| 29 | IOAPIC_DOMAIN_LEGACY, |
| 30 | IOAPIC_DOMAIN_STRICT, |
| 31 | IOAPIC_DOMAIN_DYNAMIC, |
| 32 | }; |
| 33 | |
| 34 | struct ioapic_domain_cfg { |
| 35 | enum ioapic_domain_type type; |
| 36 | const struct irq_domain_ops *ops; |
| 37 | struct device_node *dev; |
| 38 | }; |
| 39 | |
| 40 | extern const struct irq_domain_ops mp_ioapic_irqdomain_ops; |
| 41 | |
| 42 | extern int mp_irqdomain_alloc(struct irq_domain *domain, unsigned int virq, |
| 43 | unsigned int nr_irqs, void *arg); |
| 44 | extern void mp_irqdomain_free(struct irq_domain *domain, unsigned int virq, |
| 45 | unsigned int nr_irqs); |
| 46 | extern int mp_irqdomain_activate(struct irq_domain *domain, |
| 47 | struct irq_data *irq_data, bool reserve); |
| 48 | extern void mp_irqdomain_deactivate(struct irq_domain *domain, |
| 49 | struct irq_data *irq_data); |
| 50 | extern int mp_irqdomain_ioapic_idx(struct irq_domain *domain); |
| 51 | #endif /* CONFIG_X86_IO_APIC */ |
| 52 | |
| 53 | #ifdef CONFIG_PCI_MSI |
| 54 | extern void arch_init_msi_domain(struct irq_domain *domain); |
| 55 | #else |
| 56 | static inline void arch_init_msi_domain(struct irq_domain *domain) { } |
| 57 | #endif |
| 58 | |
| 59 | #endif |