1#ifndef _ISERIES_64_PCI_H
2#define _ISERIES_64_PCI_H
3/************************************************************************/
4/* File iSeries_pci.h created by Allan Trautman on Tue Feb 20, 2001.    */
5/************************************************************************/
6/* Define some useful macros for the iSeries pci routines.              */
7/* Copyright (C) 20yy  Allan H Trautman, IBM Corporation                */
8/*                                                                      */
9/* This program is free software; you can redistribute it and/or modify */
10/* it under the terms of the GNU General Public License as published by */
11/* the Free Software Foundation; either version 2 of the License, or    */
12/* (at your option) any later version.                                  */
13/*                                                                      */
14/* This program is distributed in the hope that it will be useful,      */
15/* but WITHOUT ANY WARRANTY; without even the implied warranty of       */
16/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        */
17/* GNU General Public License for more details.                         */
18/*                                                                      */
19/* You should have received a copy of the GNU General Public License    */
20/* along with this program; if not, write to the:                       */
21/* Free Software Foundation, Inc.,                                      */
22/* 59 Temple Place, Suite 330,                                          */
23/* Boston, MA  02111-1307  USA                                          */
24/************************************************************************/
25/* Change Activity:                                                     */
26/*   Created Feb 20, 2001                                               */
27/*   Added device reset, March 22, 2001                                 */
28/*   Ported to ppc64, May 25, 2001                                      */
29/* End Change Activity                                                  */
30/************************************************************************/
31#include <asm/iSeries/HvCallPci.h>
32
33struct pci_dev;				/* For Forward Reference        */
34struct iSeries_Device_Node;
35/************************************************************************/
36/* Gets iSeries Bus, SubBus, of DevFn using pci_dev* structure          */
37/************************************************************************/
38#define ISERIES_BUS(DevPtr)    DevPtr->DsaAddr.busNumber
39#define ISERIES_SUBBUS(DevPtr) DevPtr->DsaAddr.subBusNumber
40#define ISERIES_DEVICE(DevPtr) DevPtr->DsaAddr.deviceId
41#define ISERIES_DEVFUN(DevPtr) DevPtr->DevFn
42#define ISERIES_DSA(DevPtr)   (*(u64*)&DevPtr->DsaAddr)
43#define ISERIES_DEVNODE(PciDev) ((struct iSeries_Device_Node*)PciDev->sysdata)
44
45#define EADsMaxAgents 7
46/************************************************************************************/
47/* Decodes Linux DevFn to iSeries DevFn, bridge device, or function.                */
48/* For Linux, see PCI_SLOT and PCI_FUNC in include/linux/pci.h                      */
49/************************************************************************************/
50#define ISERIES_DECODE_DEVFN(linuxdevfn)  (((linuxdevfn & 0x71) << 1) | (linuxdevfn & 0x07))
51#define ISERIES_DECODE_DEVICE(linuxdevfn) (((linuxdevfn & 0x38) >> 3) |(((linuxdevfn & 0x40) >> 2) + 0x10))
52#define ISERIES_DECODE_FUNCTION(linuxdevfn) (linuxdevfn & 0x07)
53#define ISERIES_PCI_AGENTID(idsel,func)	((idsel & 0x0F) << 4) | (func  & 0x07)
54
55#define ISERIES_GET_DEVICE_FROM_SUBBUS(subbus)   ((subbus >> 5) & 0x7)
56#define ISERIES_GET_FUNCTION_FROM_SUBBUS(subbus) ((subbus >> 2) & 0x7)
57
58#define ISERIES_ENCODE_DEVICE(agentid)	((0x10) | ((agentid&0x20)>>2) | (agentid&07))
59/************************************************************************************/
60/* Converts Virtual Address to Real Address for Hypervisor calls                    */
61/************************************************************************************/
62#define REALADDR(virtaddr)  (0x8000000000000000 | (virt_to_absolute((u64)virtaddr) ))
63
64/************************************************************************************/
65/* Define TRUE and FALSE Values for Al                                              */
66/************************************************************************************/
67#ifndef TRUE
68#define TRUE 1
69#endif
70#ifndef FALSE
71#define FALSE 0
72#endif
73
74/************************************************************************/
75/* iSeries Device Information                                           */
76/************************************************************************/
77struct iSeries_Device_Node {
78	struct list_head Device_List;    /* Must be first for cast to wo*/
79	struct pci_dev*  PciDev;         /* Pointer to pci_dev structure*/
80        struct HvCallPci_DsaAddr DsaAddr;/* Direct Select Address       */
81                                         /* busNumber,subBusNumber,     */
82	                                 /* deviceId, barNumber         */
83	HvAgentId        AgentId;	 /* Hypervisor DevFn            */
84	int              DevFn;          /* Linux devfn                 */
85	int              BarOffset;
86	int              Irq;            /* Assigned IRQ                */
87	int              ReturnCode;	 /* Return Code Holder          */
88	int              IoRetry;        /* Current Retry Count         */
89	int              Flags;          /* Possible flags(disable/bist)*/
90	u16              Vendor;         /* Vendor ID                   */
91	u8               LogicalSlot;    /* Hv Slot Index for Tces      */
92	struct TceTable* DevTceTable;    /* Device TCE Table            */
93	spinlock_t       IoLock;	 /* Lock to single thread device*/
94	u8               PhbId;          /* Phb Card is on.             */
95	u16              Board;          /* Board Number                */
96	u8               FrameId;	 /* iSeries spcn Frame Id       */
97	char             CardLocation[4];/* Char format of planar vpd   */
98	char             Location[20];   /* Frame  1, Card C10          */
99};
100/************************************************************************/
101/* Location Data extracted from the VPD list and device info.           */
102/************************************************************************/
103struct LocationDataStruct { 	/* Location data structure for device  */
104	u16  Bus;               /* iSeries Bus Number              0x00*/
105	u16  Board;             /* iSeries Board                   0x02*/
106	u8   FrameId;           /* iSeries spcn Frame Id           0x04*/
107	u8   PhbId;             /* iSeries Phb Location            0x05*/
108	u8   AgentId;           /* iSeries AgentId                 0x06*/
109	u8   Card;
110	char CardLocation[4];
111};
112typedef struct LocationDataStruct  LocationData;
113#define LOCATION_DATA_SIZE      48
114/************************************************************************/
115/* Flight Recorder tracing                                              */
116/************************************************************************/
117extern int  iSeries_Set_PciTraceFlag(int TraceFlag);
118extern int  iSeries_Get_PciTraceFlag(void);
119
120/************************************************************************/
121/* Functions                                                            */
122/************************************************************************/
123extern LocationData* iSeries_GetLocationData(struct pci_dev* PciDev);
124extern int           iSeries_Device_Information(struct pci_dev*,char*, int);
125extern void          iSeries_Get_Location_Code(struct iSeries_Device_Node*);
126extern int           iSeries_Device_ToggleReset(struct pci_dev* PciDev, int AssertTime, int DelayTime);
127
128#endif /* _ISERIES_64_PCI_H */
129