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#include <asm/pci-bridge.h> 34 35struct pci_dev; /* For Forward Reference */ 36 37/* 38 * Decodes Linux DevFn to iSeries DevFn, bridge device, or function. 39 * For Linux, see PCI_SLOT and PCI_FUNC in include/linux/pci.h 40 */ 41 42#define ISERIES_PCI_AGENTID(idsel, func) \ 43 (((idsel & 0x0F) << 4) | (func & 0x07)) 44#define ISERIES_ENCODE_DEVICE(agentid) \ 45 ((0x10) | ((agentid & 0x20) >> 2) | (agentid & 0x07)) 46 47#define ISERIES_GET_DEVICE_FROM_SUBBUS(subbus) ((subbus >> 5) & 0x7) 48#define ISERIES_GET_FUNCTION_FROM_SUBBUS(subbus) ((subbus >> 2) & 0x7) 49 50/* 51 * Generate a Direct Select Address for the Hypervisor 52 */ 53static inline u64 iseries_ds_addr(struct device_node *node) 54{ 55 struct pci_dn *pdn = PCI_DN(node); 56 57 return ((u64)pdn->busno << 48) + ((u64)pdn->bussubno << 40) 58 + ((u64)0x10 << 32); 59} 60 61extern void iSeries_Device_Information(struct pci_dev*, int); 62 63#endif /* _PLATFORMS_ISERIES_PCI_H */ 64