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 |
60 | |