include/asm-ppc64/iSeries/iSeries_pci.h

   1 #ifndef _ISERIES_64_PCI_H
   2 #define _ISERIES_64_PCI_H
   3
   4 /*
   5  * File iSeries_pci.h 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/iSeries/HvCallPci.h>
  34 #include <asm/abs_addr.h>
  35
  36 struct pci_dev;                         /* For Forward Reference */
  37 struct iSeries_Device_Node;
  38
  39 /*
  40  * Gets iSeries Bus, SubBus, DevFn using iSeries_Device_Node structure
  41  */
  42
  43 #define ISERIES_BUS(DevPtr)     DevPtr->DsaAddr.Dsa.busNumber
  44 #define ISERIES_SUBBUS(DevPtr)  DevPtr->DsaAddr.Dsa.subBusNumber
  45 #define ISERIES_DEVICE(DevPtr)  DevPtr->DsaAddr.Dsa.deviceId
  46 #define ISERIES_DSA(DevPtr)     DevPtr->DsaAddr.DsaAddr
  47 #define ISERIES_DEVNODE(PciDev) ((struct iSeries_Device_Node *)PciDev->sysdata)
  48
  49 #define EADsMaxAgents 7
  50
  51 /*
  52  * Decodes Linux DevFn to iSeries DevFn, bridge device, or function.
  53  * For Linux, see PCI_SLOT and PCI_FUNC in include/linux/pci.h
  54  */
  55
  56 #define ISERIES_PCI_AGENTID(idsel, func)        \
  57         (((idsel & 0x0F) << 4) | (func & 0x07))
  58 #define ISERIES_ENCODE_DEVICE(agentid)          \
  59         ((0x10) | ((agentid & 0x20) >> 2) | (agentid & 0x07))
  60
  61 #define ISERIES_GET_DEVICE_FROM_SUBBUS(subbus)          ((subbus >> 5) & 0x7)
  62 #define ISERIES_GET_FUNCTION_FROM_SUBBUS(subbus)        ((subbus >> 2) & 0x7)
  63
  64 /*
  65  * Converts Virtual Address to Real Address for Hypervisor calls
  66  */
  67 #define ISERIES_HV_ADDR(virtaddr)       \
  68         (0x8000000000000000 | virt_to_abs(virtaddr))
  69
  70 /*
  71  * iSeries Device Information
  72  */
  73 struct iSeries_Device_Node {
  74         struct list_head Device_List;
  75         struct pci_dev  *PciDev;
  76         union HvDsaMap  DsaAddr;        /* Direct Select Address */
  77                                         /* busNumber, subBusNumber, */
  78                                         /* deviceId, barNumber */
  79         int             DevFn;          /* Linux devfn */
  80         int             Irq;            /* Assigned IRQ */
  81         int             Flags;          /* Possible flags(disable/bist)*/
  82         u8              LogicalSlot;    /* Hv Slot Index for Tces */
  83         struct iommu_table *iommu_table;/* Device TCE Table */
  84 };
  85
  86 extern void     iSeries_Device_Information(struct pci_dev*, int);
  87
  88 #endif /* _ISERIES_64_PCI_H */