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
9enum {
10 /* Allocate contiguous CPU vectors */
11 X86_IRQ_ALLOC_CONTIGUOUS_VECTORS = 0x1,
12 X86_IRQ_ALLOC_LEGACY = 0x2,
13};
14
15extern struct irq_domain *x86_vector_domain;
16
17extern void init_irq_alloc_info(struct irq_alloc_info *info,
18 const struct cpumask *mask);
19extern 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
24struct device_node;
25struct irq_data;
26
27enum ioapic_domain_type {
28 IOAPIC_DOMAIN_INVALID,
29 IOAPIC_DOMAIN_LEGACY,
30 IOAPIC_DOMAIN_STRICT,
31 IOAPIC_DOMAIN_DYNAMIC,
32};
33
34struct ioapic_domain_cfg {
35 enum ioapic_domain_type type;
36 const struct irq_domain_ops *ops;
37 struct device_node *dev;
38};
39
40extern const struct irq_domain_ops mp_ioapic_irqdomain_ops;
41
42extern int mp_irqdomain_alloc(struct irq_domain *domain, unsigned int virq,
43 unsigned int nr_irqs, void *arg);
44extern void mp_irqdomain_free(struct irq_domain *domain, unsigned int virq,
45 unsigned int nr_irqs);
46extern int mp_irqdomain_activate(struct irq_domain *domain,
47 struct irq_data *irq_data, bool reserve);
48extern void mp_irqdomain_deactivate(struct irq_domain *domain,
49 struct irq_data *irq_data);
50extern int mp_irqdomain_ioapic_idx(struct irq_domain *domain);
51#endif /* CONFIG_X86_IO_APIC */
52
53#ifdef CONFIG_PCI_MSI
54extern void arch_init_msi_domain(struct irq_domain *domain);
55#else
56static inline void arch_init_msi_domain(struct irq_domain *domain) { }
57#endif
58
59#endif
60