release/src-rt-6.x.4708/linux/linux-2.6.36/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  */
  18 struct 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
  55 struct 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
  69 extern void sn_irq_fixup(struct pci_dev *pci_dev,
  70                          struct sn_irq_info *sn_irq_info);
  71 extern void sn_irq_unfixup(struct pci_dev *pci_dev);
  72 extern struct pcidev_info * sn_pcidev_info_get(struct pci_dev *);
  73 extern void sn_bus_fixup(struct pci_bus *);
  74 extern void sn_acpi_bus_fixup(struct pci_bus *);
  75 extern void sn_common_bus_fixup(struct pci_bus *, struct pcibus_bussoft *);
  76 extern void sn_bus_store_sysdata(struct pci_dev *dev);
  77 extern void sn_bus_free_sysdata(void);
  78 extern void sn_generate_path(struct pci_bus *pci_bus, char *address);
  79 extern void sn_io_slot_fixup(struct pci_dev *);
  80 extern void sn_acpi_slot_fixup(struct pci_dev *);
  81 extern void sn_pci_fixup_slot(struct pci_dev *dev, struct pcidev_info *,
  82                               struct sn_irq_info *);
  83 extern void sn_pci_unfixup_slot(struct pci_dev *dev);
  84 extern void sn_irq_lh_init(void);
  85 #endif                          /* _ASM_IA64_SN_PCI_PCIDEV_H */