LXR linux/arch/ia64/include/asm/sn/pcidev.h

   1/*
   2 * This file is subject to the terms and conditions of the GNU General Public
   3 * License.  See the file "COPYING" in the main directory of this archive
   4 * for more details.
   5 *
   6 * Copyright (C) 1992 - 1997, 2000-2006 Silicon Graphics, Inc. All rights reserved.
   7 */
   8#ifndef _ASM_IA64_SN_PCI_PCIDEV_H
   9#define _ASM_IA64_SN_PCI_PCIDEV_H
  10
  11#include <linux/pci.h>
  12
  13/*
  14 * In ia64, pci_dev->sysdata must be a *pci_controller. To provide access to
  15 * the pcidev_info structs for all devices under a controller, we keep a
  16 * list of pcidev_info under pci_controller->platform_data.
  17 */
  18struct sn_platform_data {
  19        void *provider_soft;
  20        struct list_head pcidev_info;
  21};
  22
  23#define SN_PLATFORM_DATA(busdev) \
  24        ((struct sn_platform_data *)(PCI_CONTROLLER(busdev)->platform_data))
  25
  26#define SN_PCIDEV_INFO(dev)     sn_pcidev_info_get(dev)
  27
  28/*
  29 * Given a pci_bus, return the sn pcibus_bussoft struct.  Note that
  30 * this only works for root busses, not for busses represented by PPB's.
  31 */
  32
  33#define SN_PCIBUS_BUSSOFT(pci_bus) \
  34        ((struct pcibus_bussoft *)(SN_PLATFORM_DATA(pci_bus)->provider_soft))
  35
  36#define SN_PCIBUS_BUSSOFT_INFO(pci_bus) \
  37        ((struct pcibus_info *)(SN_PLATFORM_DATA(pci_bus)->provider_soft))
  38/*
  39 * Given a struct pci_dev, return the sn pcibus_bussoft struct.  Note
  40 * that this is not equivalent to SN_PCIBUS_BUSSOFT(pci_dev->bus) due
  41 * due to possible PPB's in the path.
  42 */
  43
  44#define SN_PCIDEV_BUSSOFT(pci_dev) \
  45        (SN_PCIDEV_INFO(pci_dev)->pdi_host_pcidev_info->pdi_pcibus_info)
  46
  47#define SN_PCIDEV_BUSPROVIDER(pci_dev) \
  48        (SN_PCIDEV_INFO(pci_dev)->pdi_provider)
  49
  50#define PCIIO_BUS_NONE  255      /* bus 255 reserved */
  51#define PCIIO_SLOT_NONE 255
  52#define PCIIO_FUNC_NONE 255
  53#define PCIIO_VENDOR_ID_NONE    (-1)
  54
  55struct pcidev_info {
  56        u64             pdi_pio_mapped_addr[7]; /* 6 BARs PLUS 1 ROM */
  57        u64             pdi_slot_host_handle;   /* Bus and devfn Host pci_dev */
  58
  59        struct pcibus_bussoft   *pdi_pcibus_info;       /* Kernel common bus soft */
  60        struct pcidev_info      *pdi_host_pcidev_info;  /* Kernel Host pci_dev */
  61        struct pci_dev          *pdi_linux_pcidev;      /* Kernel pci_dev */
  62
  63        struct sn_irq_info      *pdi_sn_irq_info;
  64        struct sn_pcibus_provider *pdi_provider;        /* sn pci ops */
  65        struct pci_dev          *host_pci_dev;          /* host bus link */
  66        struct list_head        pdi_list;               /* List of pcidev_info */
  67};
  68
  69extern void sn_irq_fixup(struct pci_dev *pci_dev,
  70                         struct sn_irq_info *sn_irq_info);
  71extern void sn_irq_unfixup(struct pci_dev *pci_dev);
  72extern struct pcidev_info * sn_pcidev_info_get(struct pci_dev *);
  73extern void sn_bus_fixup(struct pci_bus *);
  74extern void sn_acpi_bus_fixup(struct pci_bus *);
  75extern void sn_common_bus_fixup(struct pci_bus *, struct pcibus_bussoft *);
  76extern void sn_bus_store_sysdata(struct pci_dev *dev);
  77extern void sn_bus_free_sysdata(void);
  78extern void sn_generate_path(struct pci_bus *pci_bus, char *address);
  79extern void sn_io_slot_fixup(struct pci_dev *);
  80extern void sn_acpi_slot_fixup(struct pci_dev *);
  81extern void sn_pci_fixup_slot(struct pci_dev *dev, struct pcidev_info *,
  82                              struct sn_irq_info *);
  83extern void sn_pci_unfixup_slot(struct pci_dev *dev);
  84extern void sn_irq_lh_init(void);
  85#endif                          /* _ASM_IA64_SN_PCI_PCIDEV_H */
  86