arch/sparc/include/asm/pbm.h

   1 /*
   2  *
   3  * pbm.h: PCI bus module pseudo driver software state
   4  *        Adopted from sparc64 by V. Roganov and G. Raiko
   5  *
   6  * Original header:
   7  * pbm.h: U2P PCI bus module pseudo driver software state.
   8  *
   9  * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
  10  *
  11  * To put things into perspective, consider sparc64 with a few PCI controllers.
  12  * Each type would have an own structure, with instances related one to one.
  13  * We have only pcic on sparc, but we want to be compatible with sparc64 pbm.h.
  14  * All three represent different abstractions.
  15  *   pci_bus  - Linux PCI subsystem view of a PCI bus (including bridged buses)
  16  *   pbm      - Arch-specific view of a PCI bus (sparc or sparc64)
  17  *   pcic     - Chip-specific information for PCIC.
  18  */
  19
  20 #ifndef __SPARC_PBM_H
  21 #define __SPARC_PBM_H
  22
  23 #include <linux/pci.h>
  24 #include <asm/oplib.h>
  25 #include <asm/prom.h>
  26
  27 struct linux_pbm_info {
  28         int             prom_node;
  29         char            prom_name[64];
  30         /* struct linux_prom_pci_ranges pbm_ranges[PROMREG_MAX]; */
  31         /* int          num_pbm_ranges; */
  32
  33         /* Now things for the actual PCI bus probes. */
  34         unsigned int    pci_first_busno;        /* Can it be nonzero? */
  35         struct pci_bus  *pci_bus;               /* Was inline, MJ allocs now */
  36 };
  37
  38 /* PCI devices which are not bridges have this placed in their pci_dev
  39  * sysdata member.  This makes OBP aware PCI device drivers easier to
  40  * code.
  41  */
  42 struct pcidev_cookie {
  43         struct linux_pbm_info           *pbm;
  44         struct device_node              *prom_node;
  45 };
  46
  47 #endif /* !(__SPARC_PBM_H) */