pbm.h 1.5 KB

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  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 ([email protected])
  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. #ifndef __SPARC_PBM_H
  21. #define __SPARC_PBM_H
  22. #include <linux/pci.h>
  23. #include <asm/oplib.h>
  24. #include <asm/prom.h>
  25. struct linux_pbm_info {
  26. int prom_node;
  27. char prom_name[64];
  28. /* struct linux_prom_pci_ranges pbm_ranges[PROMREG_MAX]; */
  29. /* int num_pbm_ranges; */
  30. /* Now things for the actual PCI bus probes. */
  31. unsigned int pci_first_busno; /* Can it be nonzero? */
  32. struct pci_bus *pci_bus; /* Was inline, MJ allocs now */
  33. };
  34. /* PCI devices which are not bridges have this placed in their pci_dev
  35. * sysdata member. This makes OBP aware PCI device drivers easier to
  36. * code.
  37. */
  38. struct pcidev_cookie {
  39. struct linux_pbm_info *pbm;
  40. struct device_node *prom_node;
  41. };
  42. #endif /* !(__SPARC_PBM_H) */