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