include/asm-ia64/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, 2000-2005 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 extend the
  16  * definition of pci_controller, via sn_pci_controller, to include a list
  17  * of pcidev_info.
  18  */
  19 struct sn_pci_controller {
  20         struct pci_controller pci_controller;
  21         struct list_head pcidev_info;
  22 };
  23
  24 #define SN_PCI_CONTROLLER(dev) ((struct sn_pci_controller *) dev->sysdata)
  25
  26 #define SN_PCIDEV_INFO(dev)     sn_pcidev_info_get(dev)
  27
  28 #define SN_PCIBUS_BUSSOFT_INFO(pci_bus) \
  29         (struct pcibus_info *)((struct pcibus_bussoft *)(PCI_CONTROLLER((pci_bus))->platform_data))
  30 /*
  31  * Given a pci_bus, return the sn pcibus_bussoft struct.  Note that
  32  * this only works for root busses, not for busses represented by PPB's.
  33  */
  34
  35 #define SN_PCIBUS_BUSSOFT(pci_bus) \
  36         ((struct pcibus_bussoft *)(PCI_CONTROLLER((pci_bus))->platform_data))
  37
  38 #define SN_PCIBUS_BUSSOFT_INFO(pci_bus) \
  39         (struct pcibus_info *)((struct pcibus_bussoft *)(PCI_CONTROLLER((pci_bus))->platform_data))
  40 /*
  41  * Given a struct pci_dev, return the sn pcibus_bussoft struct.  Note
  42  * that this is not equivalent to SN_PCIBUS_BUSSOFT(pci_dev->bus) due
  43  * due to possible PPB's in the path.
  44  */
  45
  46 #define SN_PCIDEV_BUSSOFT(pci_dev) \
  47         (SN_PCIDEV_INFO(pci_dev)->pdi_host_pcidev_info->pdi_pcibus_info)
  48
  49 #define SN_PCIDEV_BUSPROVIDER(pci_dev) \
  50         (SN_PCIDEV_INFO(pci_dev)->pdi_provider)
  51
  52 #define PCIIO_BUS_NONE  255      /* bus 255 reserved */
  53 #define PCIIO_SLOT_NONE 255
  54 #define PCIIO_FUNC_NONE 255
  55 #define PCIIO_VENDOR_ID_NONE    (-1)
  56
  57 struct pcidev_info {
  58         u64             pdi_pio_mapped_addr[7]; /* 6 BARs PLUS 1 ROM */
  59         u64             pdi_slot_host_handle;   /* Bus and devfn Host pci_dev */
  60
  61         struct pcibus_bussoft   *pdi_pcibus_info;       /* Kernel common bus soft */
  62         struct pcidev_info      *pdi_host_pcidev_info;  /* Kernel Host pci_dev */
  63         struct pci_dev          *pdi_linux_pcidev;      /* Kernel pci_dev */
  64
  65         struct sn_irq_info      *pdi_sn_irq_info;
  66         struct sn_pcibus_provider *pdi_provider;        /* sn pci ops */
  67         struct pci_dev          *host_pci_dev;          /* host bus link */
  68         struct list_head        pdi_list;               /* List of pcidev_info */
  69 };
  70
  71 extern void sn_irq_fixup(struct pci_dev *pci_dev,
  72                          struct sn_irq_info *sn_irq_info);
  73 extern void sn_irq_unfixup(struct pci_dev *pci_dev);
  74 extern struct pcidev_info * sn_pcidev_info_get(struct pci_dev *);
  75 extern void sn_pci_controller_fixup(int segment, int busnum,
  76                                     struct pci_bus *bus);
  77 extern void sn_bus_store_sysdata(struct pci_dev *dev);
  78 extern void sn_bus_free_sysdata(void);
  79 extern void sn_generate_path(struct pci_bus *pci_bus, char *address);
  80 extern void sn_pci_fixup_slot(struct pci_dev *dev);
  81 extern void sn_pci_unfixup_slot(struct pci_dev *dev);
  82 extern void sn_irq_lh_init(void);
  83 #endif                          /* _ASM_IA64_SN_PCI_PCIDEV_H */