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Stephen Rothwell426c1a12005-10-14 14:51:42 +10001#ifndef _PLATFORMS_ISERIES_PCI_H
2#define _PLATFORMS_ISERIES_PCI_H
Linus Torvalds1da177e2005-04-16 15:20:36 -07003
Stephen Rothwellfcee3892005-06-21 17:15:34 -07004/*
Stephen Rothwell426c1a12005-10-14 14:51:42 +10005 * Created by Allan Trautman on Tue Feb 20, 2001.
Stephen Rothwellfcee3892005-06-21 17:15:34 -07006 *
7 * Define some useful macros for the iSeries pci routines.
8 * Copyright (C) 2001 Allan H Trautman, IBM Corporation
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the:
22 * Free Software Foundation, Inc.,
23 * 59 Temple Place, Suite 330,
24 * Boston, MA 02111-1307 USA
25 *
26 * Change Activity:
27 * Created Feb 20, 2001
28 * Added device reset, March 22, 2001
29 * Ported to ppc64, May 25, 2001
30 * End Change Activity
31 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070032
Stephen Rothwellfcee3892005-06-21 17:15:34 -070033/*
Stephen Rothwellfcee3892005-06-21 17:15:34 -070034 * Decodes Linux DevFn to iSeries DevFn, bridge device, or function.
35 * For Linux, see PCI_SLOT and PCI_FUNC in include/linux/pci.h
36 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070037
Stephen Rothwellfcee3892005-06-21 17:15:34 -070038#define ISERIES_PCI_AGENTID(idsel, func) \
Stephen Rothwell6b7feec2005-06-21 17:15:35 -070039 (((idsel & 0x0F) << 4) | (func & 0x07))
Stephen Rothwellfcee3892005-06-21 17:15:34 -070040#define ISERIES_ENCODE_DEVICE(agentid) \
41 ((0x10) | ((agentid & 0x20) >> 2) | (agentid & 0x07))
Linus Torvalds1da177e2005-04-16 15:20:36 -070042
Stephen Rothwellfcee3892005-06-21 17:15:34 -070043#define ISERIES_GET_DEVICE_FROM_SUBBUS(subbus) ((subbus >> 5) & 0x7)
44#define ISERIES_GET_FUNCTION_FROM_SUBBUS(subbus) ((subbus >> 2) & 0x7)
Linus Torvalds1da177e2005-04-16 15:20:36 -070045
Benjamin Herrenschmidt50c9bc22007-12-20 14:54:55 +110046struct pci_dev;
47
Stephen Rothwell26b6d5b2007-11-19 17:06:56 +110048#ifdef CONFIG_PCI
Stephen Rothwellcb993022007-12-07 02:00:45 +110049extern void iSeries_pcibios_init(void);
Stephen Rothwell26b6d5b2007-11-19 17:06:56 +110050extern void iSeries_pci_final_fixup(void);
Benjamin Herrenschmidt50c9bc22007-12-20 14:54:55 +110051extern void iSeries_pcibios_fixup_resources(struct pci_dev *dev);
Stephen Rothwell26b6d5b2007-11-19 17:06:56 +110052#else
Stephen Rothwellcb993022007-12-07 02:00:45 +110053static inline void iSeries_pcibios_init(void) { }
54static inline void iSeries_pci_final_fixup(void) { }
Benjamin Herrenschmidt50c9bc22007-12-20 14:54:55 +110055static inline void iSeries_pcibios_fixup_resources(struct pci_dev *dev) {}
Stephen Rothwell26b6d5b2007-11-19 17:06:56 +110056#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070057
Stephen Rothwell426c1a12005-10-14 14:51:42 +100058#endif /* _PLATFORMS_ISERIES_PCI_H */