arch/x86/include/asm/irqdomain.h

   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 };
  13
  14 extern struct irq_domain *x86_vector_domain;
  15
  16 extern void init_irq_alloc_info(struct irq_alloc_info *info,
  17                                 const struct cpumask *mask);
  18 extern void copy_irq_alloc_info(struct irq_alloc_info *dst,
  19                                 struct irq_alloc_info *src);
  20 #endif /* CONFIG_X86_LOCAL_APIC */
  21
  22 #ifdef CONFIG_X86_IO_APIC
  23 struct device_node;
  24 struct irq_data;
  25
  26 enum ioapic_domain_type {
  27         IOAPIC_DOMAIN_INVALID,
  28         IOAPIC_DOMAIN_LEGACY,
  29         IOAPIC_DOMAIN_STRICT,
  30         IOAPIC_DOMAIN_DYNAMIC,
  31 };
  32
  33 struct ioapic_domain_cfg {
  34         enum ioapic_domain_type         type;
  35         const struct irq_domain_ops     *ops;
  36         struct device_node              *dev;
  37 };
  38
  39 extern const struct irq_domain_ops mp_ioapic_irqdomain_ops;
  40
  41 extern int mp_irqdomain_alloc(struct irq_domain *domain, unsigned int virq,
  42                               unsigned int nr_irqs, void *arg);
  43 extern void mp_irqdomain_free(struct irq_domain *domain, unsigned int virq,
  44                               unsigned int nr_irqs);
  45 extern void mp_irqdomain_activate(struct irq_domain *domain,
  46                                   struct irq_data *irq_data);
  47 extern void mp_irqdomain_deactivate(struct irq_domain *domain,
  48                                     struct irq_data *irq_data);
  49 extern int mp_irqdomain_ioapic_idx(struct irq_domain *domain);
  50 #endif /* CONFIG_X86_IO_APIC */
  51
  52 #ifdef CONFIG_PCI_MSI
  53 extern void arch_init_msi_domain(struct irq_domain *domain);
  54 #else
  55 static inline void arch_init_msi_domain(struct irq_domain *domain) { }
  56 #endif
  57
  58 #ifdef CONFIG_HT_IRQ
  59 extern void arch_init_htirq_domain(struct irq_domain *domain);
  60 #else
  61 static inline void arch_init_htirq_domain(struct irq_domain *domain) { }
  62 #endif
  63
  64 #endif