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#ifndef ARCH_PIRQ_ROUTING_H
#define ARCH_PIRQ_ROUTING_H
#include <types.h>
#define PIRQ_SIGNATURE (('$' << 0) + ('P' << 8) + ('I' << 16) + ('R' << 24))
#define PIRQ_VERSION 0x0100
struct irq_info {
u8 bus, devfn; /* Bus, device and function */
struct {
u8 link; /* IRQ line ID, chipset dependent, 0=not routed */
u16 bitmap; /* Available IRQs */
} __attribute__((packed)) irq[4];
u8 slot; /* Slot number, 0=onboard */
u8 rfu;
} __attribute__((packed));
#if defined(CONFIG_IRQ_SLOT_COUNT)
#define IRQ_SLOTS_COUNT CONFIG_IRQ_SLOT_COUNT
#elif (__GNUC__ < 3)
#define IRQ_SLOTS_COUNT 1
#else
#define IRQ_SLOTS_COUNT
#endif
struct irq_routing_table {
u32 signature; /* PIRQ_SIGNATURE should be here */
u16 version; /* PIRQ_VERSION */
u16 size; /* Table size in bytes */
u8 rtr_bus, rtr_devfn; /* Where the interrupt router lies */
u16 exclusive_irqs; /* IRQs devoted exclusively to PCI usage */
u16 rtr_vendor, rtr_device; /* Vendor and device ID of interrupt router */
u32 miniport_data; /* Crap */
u8 rfu[11];
u8 checksum; /* Modulo 256 checksum must give zero */
struct irq_info slots[IRQ_SLOTS_COUNT];
} __attribute__((packed));
extern const struct irq_routing_table intel_irq_routing_table;
#if defined(CONFIG_DEBUG) && defined(CONFIG_HAVE_PIRQ_TABLE)
void check_pirq_routing_table(void);
#else
#define check_pirq_routing_table() do {} while(0)
#endif
#if defined(CONFIG_HAVE_PIRQ_TABLE)
unsigned long copy_pirq_routing_table(unsigned long start);
#else
#define copy_pirq_routing_table(start) (start)
#endif
#endif /* ARCH_PIRQ_ROUTING_H */
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