LXR linux/arch/sparc/include/asm/pbm.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 *
   4 * pbm.h: PCI bus module pseudo driver software state
   5 *        Adopted from sparc64 by V. Roganov and G. Raiko
   6 *
   7 * Original header:
   8 * pbm.h: U2P PCI bus module pseudo driver software state.
   9 *
  10 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
  11 *
  12 * To put things into perspective, consider sparc64 with a few PCI controllers.
  13 * Each type would have an own structure, with instances related one to one.
  14 * We have only pcic on sparc, but we want to be compatible with sparc64 pbm.h.
  15 * All three represent different abstractions.
  16 *   pci_bus  - Linux PCI subsystem view of a PCI bus (including bridged buses)
  17 *   pbm      - Arch-specific view of a PCI bus (sparc or sparc64)
  18 *   pcic     - Chip-specific information for PCIC.
  19 */
  20
  21#ifndef __SPARC_PBM_H
  22#define __SPARC_PBM_H
  23
  24#include <linux/pci.h>
  25#include <asm/oplib.h>
  26#include <asm/prom.h>
  27
  28struct linux_pbm_info {
  29        int             prom_node;
  30        char            prom_name[64];
  31        /* struct linux_prom_pci_ranges pbm_ranges[PROMREG_MAX]; */
  32        /* int          num_pbm_ranges; */
  33
  34        /* Now things for the actual PCI bus probes. */
  35        unsigned int    pci_first_busno;        /* Can it be nonzero? */
  36        struct pci_bus  *pci_bus;               /* Was inline, MJ allocs now */
  37};
  38
  39/* PCI devices which are not bridges have this placed in their pci_dev
  40 * sysdata member.  This makes OBP aware PCI device drivers easier to
  41 * code.
  42 */
  43struct pcidev_cookie {
  44        struct linux_pbm_info           *pbm;
  45        struct device_node              *prom_node;
  46};
  47
  48#endif /* !(__SPARC_PBM_H) */
  49