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

source code of linux/arch/x86/include/asm/irqdomain.h