1 #ifndef _PLATFORMS_ISERIES_PCI_H
2 #define _PLATFORMS_ISERIES_PCI_H
3
4 /*
5 * Created by Allan Trautman on Tue Feb 20, 2001.
6 *
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 */
32
33 /*
34 * 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 */
37
38 #define ISERIES_PCI_AGENTID(idsel, func) \
39 (((idsel & 0x0F) << 4) | (func & 0x07))
40 #define ISERIES_ENCODE_DEVICE(agentid) \
41 ((0x10) | ((agentid & 0x20) >> 2) | (agentid & 0x07))
42
43 #define ISERIES_GET_DEVICE_FROM_SUBBUS(subbus) ((subbus >> 5) & 0x7)
44 #define ISERIES_GET_FUNCTION_FROM_SUBBUS(subbus) ((subbus >> 2) & 0x7)
45
46 struct pci_dev;
47
48 #ifdef CONFIG_PCI
49 extern void iSeries_pcibios_init(void);
50 extern void iSeries_pci_final_fixup(void);
51 extern void iSeries_pcibios_fixup_resources(struct pci_dev *dev);
52 #else
iSeries_pcibios_init(void)53 static inline void iSeries_pcibios_init(void) { }
iSeries_pci_final_fixup(void)54 static inline void iSeries_pci_final_fixup(void) { }
iSeries_pcibios_fixup_resources(struct pci_dev * dev)55 static inline void iSeries_pcibios_fixup_resources(struct pci_dev *dev) {}
56 #endif
57
58 #endif /* _PLATFORMS_ISERIES_PCI_H */
59