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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/mn10300/unit-asb2305/pci-asb2305.h
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/* ASB2305 Arch-specific PCI declarations

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 *

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 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.

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 * Written by David Howells ([email protected])

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 * Derived from: arch/i386/kernel/pci-i386.h: (c) 1999 Martin Mares <[email protected]>

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 *

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 * This program is free software; you can redistribute it and/or

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 * modify it under the terms of the GNU General Public Licence

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 * as published by the Free Software Foundation; either version

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 * 2 of the Licence, or (at your option) any later version.

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 */

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#ifndef _PCI_ASB2305_H

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#define _PCI_ASB2305_H

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#undef DEBUG

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#ifdef DEBUG

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#define DBG(x...) printk(x)

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#else

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#define DBG(x...)

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#endif

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#define PCI_PROBE_BIOS 1

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#define PCI_PROBE_CONF1 2

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#define PCI_PROBE_CONF2 4

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#define PCI_NO_CHECKS 0x400

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#define PCI_ASSIGN_ROMS 0x1000

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#define PCI_BIOS_IRQ_SCAN 0x2000

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extern unsigned int pci_probe;

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/* pci-asb2305.c */

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extern unsigned int pcibios_max_latency;

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extern void pcibios_resource_survey(void);

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/* pci.c */

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extern int pcibios_last_bus;

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extern struct pci_bus *pci_root_bus;

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extern struct pci_ops *pci_root_ops;

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extern struct irq_routing_table *pcibios_get_irq_routing_table(void);

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extern int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);

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/* pci-irq.c */

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struct irq_info {

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	u8 bus, devfn;			/* Bus, device and function */

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	struct {

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		u8 link;		/* IRQ line ID, chipset dependent,

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					 * 0=not routed */

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		u16 bitmap;		/* Available IRQs */

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	} __attribute__((packed)) irq[4];

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	u8 slot;			/* Slot number, 0=onboard */

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	u8 rfu;

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} __attribute__((packed));

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struct irq_routing_table {

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	u32 signature;			/* PIRQ_SIGNATURE should be here */

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	u16 version;			/* PIRQ_VERSION */

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	u16 size;			/* Table size in bytes */

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	u8 rtr_bus, rtr_devfn;		/* Where the interrupt router lies */

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	u16 exclusive_irqs;		/* IRQs devoted exclusively to PCI usage */

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	u16 rtr_vendor, rtr_device;	/* Vendor and device ID of interrupt router */

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	u32 miniport_data;		/* Crap */

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	u8 rfu[11];

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	u8 checksum;			/* Modulo 256 checksum must give zero */

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	struct irq_info slots[0];

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} __attribute__((packed));

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extern unsigned int pcibios_irq_mask;

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extern void pcibios_irq_init(void);

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extern void pcibios_fixup_irqs(void);

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extern void pcibios_enable_irq(struct pci_dev *dev);

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#endif /* PCI_ASB2305_H */

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