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kernel/linux-rt-4.4.41/arch/ia64/include/asm/sn/pcidev.h 3.05 KB
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  /*
   * This file is subject to the terms and conditions of the GNU General Public
   * License.  See the file "COPYING" in the main directory of this archive
   * for more details.
   *
   * Copyright (C) 1992 - 1997, 2000-2006 Silicon Graphics, Inc. All rights reserved.
   */
  #ifndef _ASM_IA64_SN_PCI_PCIDEV_H
  #define _ASM_IA64_SN_PCI_PCIDEV_H
  
  #include <linux/pci.h>
  
  /*
   * In ia64, pci_dev->sysdata must be a *pci_controller. To provide access to
   * the pcidev_info structs for all devices under a controller, we keep a
   * list of pcidev_info under pci_controller->platform_data.
   */
  struct sn_platform_data {
  	void *provider_soft;
  	struct list_head pcidev_info;
  };
  
  #define SN_PLATFORM_DATA(busdev) \
  	((struct sn_platform_data *)(PCI_CONTROLLER(busdev)->platform_data))
  
  #define SN_PCIDEV_INFO(dev)	sn_pcidev_info_get(dev)
  
  /*
   * Given a pci_bus, return the sn pcibus_bussoft struct.  Note that
   * this only works for root busses, not for busses represented by PPB's.
   */
  
  #define SN_PCIBUS_BUSSOFT(pci_bus) \
  	((struct pcibus_bussoft *)(SN_PLATFORM_DATA(pci_bus)->provider_soft))
  
  #define SN_PCIBUS_BUSSOFT_INFO(pci_bus) \
  	((struct pcibus_info *)(SN_PLATFORM_DATA(pci_bus)->provider_soft))
  /*
   * Given a struct pci_dev, return the sn pcibus_bussoft struct.  Note
   * that this is not equivalent to SN_PCIBUS_BUSSOFT(pci_dev->bus) due
   * due to possible PPB's in the path.
   */
  
  #define SN_PCIDEV_BUSSOFT(pci_dev) \
  	(SN_PCIDEV_INFO(pci_dev)->pdi_host_pcidev_info->pdi_pcibus_info)
  
  #define SN_PCIDEV_BUSPROVIDER(pci_dev) \
  	(SN_PCIDEV_INFO(pci_dev)->pdi_provider)
  
  #define PCIIO_BUS_NONE	255      /* bus 255 reserved */
  #define PCIIO_SLOT_NONE 255
  #define PCIIO_FUNC_NONE 255
  #define PCIIO_VENDOR_ID_NONE	(-1)
  
  struct pcidev_info {
  	u64		pdi_pio_mapped_addr[7]; /* 6 BARs PLUS 1 ROM */
  	u64		pdi_slot_host_handle;	/* Bus and devfn Host pci_dev */
  
  	struct pcibus_bussoft	*pdi_pcibus_info;	/* Kernel common bus soft */
  	struct pcidev_info	*pdi_host_pcidev_info;	/* Kernel Host pci_dev */
  	struct pci_dev		*pdi_linux_pcidev;	/* Kernel pci_dev */
  
  	struct sn_irq_info	*pdi_sn_irq_info;
  	struct sn_pcibus_provider *pdi_provider;	/* sn pci ops */
  	struct pci_dev 		*host_pci_dev;		/* host bus link */
  	struct list_head	pdi_list;		/* List of pcidev_info */
  };
  
  extern void sn_irq_fixup(struct pci_dev *pci_dev,
  			 struct sn_irq_info *sn_irq_info);
  extern void sn_irq_unfixup(struct pci_dev *pci_dev);
  extern struct pcidev_info * sn_pcidev_info_get(struct pci_dev *);
  extern void sn_bus_fixup(struct pci_bus *);
  extern void sn_acpi_bus_fixup(struct pci_bus *);
  extern void sn_common_bus_fixup(struct pci_bus *, struct pcibus_bussoft *);
  extern void sn_bus_store_sysdata(struct pci_dev *dev);
  extern void sn_bus_free_sysdata(void);
  extern void sn_generate_path(struct pci_bus *pci_bus, char *address);
  extern void sn_io_slot_fixup(struct pci_dev *);
  extern void sn_acpi_slot_fixup(struct pci_dev *);
  extern void sn_pci_fixup_slot(struct pci_dev *dev, struct pcidev_info *,
  			      struct sn_irq_info *);
  extern void sn_pci_unfixup_slot(struct pci_dev *dev);
  extern void sn_irq_lh_init(void);
  #endif				/* _ASM_IA64_SN_PCI_PCIDEV_H */