iosapic.h

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#ifndef __ASM_IA64_IOSAPIC_H
#define __ASM_IA64_IOSAPIC_H

#define	IOSAPIC_DEFAULT_ADDR	0xFEC00000

#define	IOSAPIC_REG_SELECT	0x0
#define	IOSAPIC_WINDOW		0x10
#define	IOSAPIC_EOI		0x40

#define	IOSAPIC_VERSION	0x1

/*
 * Redirection table entry
 */
#define	IOSAPIC_RTE_LOW(i)	(0x10+i*2)
#define	IOSAPIC_RTE_HIGH(i)	(0x11+i*2)

#define	IOSAPIC_DEST_SHIFT		16

/*
 * Delivery mode
 */
#define	IOSAPIC_DELIVERY_SHIFT		8
#define	IOSAPIC_FIXED			0x0
#define	IOSAPIC_LOWEST_PRIORITY	0x1
#define	IOSAPIC_PMI			0x2
#define	IOSAPIC_NMI			0x4
#define	IOSAPIC_INIT			0x5
#define	IOSAPIC_EXTINT			0x7

/*
 * Interrupt polarity
 */
#define	IOSAPIC_POLARITY_SHIFT		13
#define	IOSAPIC_POL_HIGH		0
#define	IOSAPIC_POL_LOW		1

/*
 * Trigger mode
 */
#define	IOSAPIC_TRIGGER_SHIFT		15
#define	IOSAPIC_EDGE			0
#define	IOSAPIC_LEVEL			1

/*
 * Mask bit
 */
#define	IOSAPIC_MASK_SHIFT		16
#define	IOSAPIC_UNMASK			0
#define	IOSAPIC_MSAK			1

#ifndef __ASSEMBLY__

extern void __init iosapic_init (unsigned long address, unsigned int base_irq);
extern void iosapic_register_legacy_irq (unsigned long irq, unsigned long pin,
					 unsigned long polarity, unsigned long trigger);
extern void iosapic_pci_fixup (int);

# endif /* !__ASSEMBLY__ */
#endif /* __ASM_IA64_IOSAPIC_H */