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
28 struct 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 */
43 struct pcidev_cookie {
44 struct linux_pbm_info *pbm;
45 struct device_node *prom_node;
46 };
47
48 #endif /* !(__SPARC_PBM_H) */