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 void x86_create_pci_msi_domain(void);
55 struct irq_domain *native_create_pci_msi_domain(void);
56 extern struct irq_domain *x86_pci_msi_default_domain;
57 #else
x86_create_pci_msi_domain(void)58 static inline void x86_create_pci_msi_domain(void) { }
59 #define native_create_pci_msi_domain NULL
60 #define x86_pci_msi_default_domain NULL
61 #endif
62
63 #endif
64