arch/x86/include/asm/irqdomain.h

   1 #ifndef _ASM_IRQDOMAIN_H
   2 #define _ASM_IRQDOMAIN_H
   3
   4 #include <linux/irqdomain.h>
   5 #include <asm/hw_irq.h>
   6
   7 #ifdef CONFIG_X86_LOCAL_APIC
   8 enum {
   9         /* Allocate contiguous CPU vectors */
  10         X86_IRQ_ALLOC_CONTIGUOUS_VECTORS                = 0x1,
  11 };
  12
  13 extern struct irq_domain *x86_vector_domain;
  14
  15 extern void init_irq_alloc_info(struct irq_alloc_info *info,
  16                                 const struct cpumask *mask);
  17 extern void copy_irq_alloc_info(struct irq_alloc_info *dst,
  18                                 struct irq_alloc_info *src);
  19 #endif /* CONFIG_X86_LOCAL_APIC */
  20
  21 #ifdef CONFIG_X86_IO_APIC
  22 struct device_node;
  23 struct irq_data;
  24
  25 enum ioapic_domain_type {
  26         IOAPIC_DOMAIN_INVALID,
  27         IOAPIC_DOMAIN_LEGACY,
  28         IOAPIC_DOMAIN_STRICT,
  29         IOAPIC_DOMAIN_DYNAMIC,
  30 };
  31
  32 struct ioapic_domain_cfg {
  33         enum ioapic_domain_type         type;
  34         const struct irq_domain_ops     *ops;
  35         struct device_node              *dev;
  36 };
  37
  38 extern const struct irq_domain_ops mp_ioapic_irqdomain_ops;
  39
  40 extern int mp_irqdomain_alloc(struct irq_domain *domain, unsigned int virq,
  41                               unsigned int nr_irqs, void *arg);
  42 extern void mp_irqdomain_free(struct irq_domain *domain, unsigned int virq,
  43                               unsigned int nr_irqs);
  44 extern void mp_irqdomain_activate(struct irq_domain *domain,
  45                                   struct irq_data *irq_data);
  46 extern void mp_irqdomain_deactivate(struct irq_domain *domain,
  47                                     struct irq_data *irq_data);
  48 extern int mp_irqdomain_ioapic_idx(struct irq_domain *domain);
  49 #endif /* CONFIG_X86_IO_APIC */
  50
  51 #ifdef CONFIG_PCI_MSI
  52 extern void arch_init_msi_domain(struct irq_domain *domain);
  53 #else
  54 static inline void arch_init_msi_domain(struct irq_domain *domain) { }
  55 #endif
  56
  57 #ifdef CONFIG_HT_IRQ
  58 extern void arch_init_htirq_domain(struct irq_domain *domain);
  59 #else
  60 static inline void arch_init_htirq_domain(struct irq_domain *domain) { }
  61 #endif
  62
  63 #endif