arch/powerpc/include/asm/residual.h

   1 /* 7/18/95                                                                    */
   2 /*----------------------------------------------------------------------------*/
   3 /*      Residual Data header definitions and prototypes                       */
   4 /*----------------------------------------------------------------------------*/
   5
   6 /* Structure map for RESIDUAL on PowerPC Reference Platform                   */
   7 /* residual.h - Residual data structure passed in r3.                         */
   8 /*              Load point passed in r4 to boot image.                        */
   9 /* For enum's: if given in hex then they are bit significant,                 */
  10 /*             i.e. only one bit is on for each enum                          */
  11 /* Reserved fields must be filled with zeros.                                */
  12
  13 #ifndef _RESIDUAL_
  14 #define _RESIDUAL_
  15
  16 #ifndef __ASSEMBLY__
  17
  18 #define MAX_CPUS 32                     /* These should be set to the maximum */
  19 #define MAX_MEMS 64                     /* number possible for this system.   */
  20 #define MAX_DEVICES 256                 /* Changing these will change the     */
  21 #define AVE_PNP_SIZE 32                 /* structure, hence the version of    */
  22 #define MAX_MEM_SEGS 64                 /* this header file.                  */
  23
  24 /*----------------------------------------------------------------------------*/
  25 /*               Public structures...                                         */
  26 /*----------------------------------------------------------------------------*/
  27
  28 #include "pnp.h"
  29
  30 typedef enum _L1CACHE_TYPE {
  31   NoneCAC = 0,
  32   SplitCAC = 1,
  33   CombinedCAC = 2
  34   } L1CACHE_TYPE;
  35
  36 typedef enum _TLB_TYPE {
  37   NoneTLB = 0,
  38   SplitTLB = 1,
  39   CombinedTLB = 2
  40   } TLB_TYPE;
  41
  42 typedef enum _FIRMWARE_SUPPORT {
  43   Conventional = 0x01,
  44   OpenFirmware = 0x02,
  45   Diagnostics = 0x04,
  46   LowDebug = 0x08,
  47   Multiboot = 0x10,
  48   LowClient = 0x20,
  49   Hex41 = 0x40,
  50   FAT = 0x80,
  51   ISO9660 = 0x0100,
  52   SCSI_InitiatorID_Override = 0x0200,
  53   Tape_Boot = 0x0400,
  54   FW_Boot_Path = 0x0800
  55   } FIRMWARE_SUPPORT;
  56
  57 typedef enum _FIRMWARE_SUPPLIERS {
  58   IBMFirmware = 0x00,
  59   MotoFirmware = 0x01,                  /* 7/18/95                            */
  60   FirmWorks = 0x02,                     /* 10/5/95                            */
  61   Bull = 0x03,                          /* 04/03/96                           */
  62   } FIRMWARE_SUPPLIERS;
  63
  64 typedef enum _ENDIAN_SWITCH_METHODS {
  65   UsePort92 = 0x01,
  66   UsePCIConfigA8 = 0x02,
  67   UseFF001030 = 0x03,
  68   } ENDIAN_SWITCH_METHODS;
  69
  70 typedef enum _SPREAD_IO_METHODS {
  71   UsePort850 = 0x00,
  72 /*UsePCIConfigA8 = 0x02,*/
  73   } SPREAD_IO_METHODS;
  74
  75 typedef struct _VPD {
  76
  77   /* Box dependent stuff */
  78   unsigned char PrintableModel[32];     /* Null terminated string.
  79                                            Must be of the form:
  80                                            vvv,<20h>,<model designation>,<0x0>
  81                                            where vvv is the vendor ID
  82                                            e.g. IBM PPS MODEL 6015<0x0>       */
  83   unsigned char Serial[16];             /* 12/94:
  84                                            Serial Number; must be of the form:
  85                                            vvv<serial number> where vvv is the
  86                                            vendor ID.
  87                                            e.g. IBM60151234567<20h><20h>      */
  88   unsigned char Reserved[48];
  89   unsigned long FirmwareSupplier;       /* See FirmwareSuppliers enum         */
  90   unsigned long FirmwareSupports;       /* See FirmwareSupport enum           */
  91   unsigned long NvramSize;              /* Size of nvram in bytes             */
  92   unsigned long NumSIMMSlots;
  93   unsigned short EndianSwitchMethod;    /* See EndianSwitchMethods enum       */
  94   unsigned short SpreadIOMethod;        /* See SpreadIOMethods enum           */
  95   unsigned long SmpIar;
  96   unsigned long RAMErrLogOffset;        /* Heap offset to error log           */
  97   unsigned long Reserved5;
  98   unsigned long Reserved6;
  99   unsigned long ProcessorHz;            /* Processor clock frequency in Hertz */
 100   unsigned long ProcessorBusHz;         /* Processor bus clock frequency      */
 101   unsigned long Reserved7;
 102   unsigned long TimeBaseDivisor;        /* (Bus clocks per timebase tic)*1000 */
 103   unsigned long WordWidth;              /* Word width in bits                 */
 104   unsigned long PageSize;               /* Page size in bytes                 */
 105   unsigned long CoherenceBlockSize;     /* Unit of transfer in/out of cache
 106                                            for which coherency is maintained;
 107                                            normally <= CacheLineSize.         */
 108   unsigned long GranuleSize;            /* Unit of lock allocation to avoid   */
 109                                         /*   false sharing of locks.          */
 110
 111   /* L1 Cache variables */
 112   unsigned long CacheSize;              /* L1 Cache size in KB. This is the   */
 113                                         /*   total size of the L1, whether    */
 114                                         /*   combined or split                */
 115   unsigned long CacheAttrib;            /* L1CACHE_TYPE                       */
 116   unsigned long CacheAssoc;             /* L1 Cache associativity. Use this
 117                                            for combined cache. If split, put
 118                                            zeros here.                        */
 119   unsigned long CacheLineSize;          /* L1 Cache line size in bytes. Use
 120                                            for combined cache. If split, put
 121                                            zeros here.                        */
 122   /* For split L1 Cache: (= combined if combined cache) */
 123   unsigned long I_CacheSize;
 124   unsigned long I_CacheAssoc;
 125   unsigned long I_CacheLineSize;
 126   unsigned long D_CacheSize;
 127   unsigned long D_CacheAssoc;
 128   unsigned long D_CacheLineSize;
 129
 130   /* Translation Lookaside Buffer variables */
 131   unsigned long TLBSize;                /* Total number of TLBs on the system */
 132   unsigned long TLBAttrib;              /* Combined I+D or split TLB          */
 133   unsigned long TLBAssoc;               /* TLB Associativity. Use this for
 134                                            combined TLB. If split, put zeros
 135                                            here.                              */
 136   /* For split TLB: (= combined if combined TLB) */
 137   unsigned long I_TLBSize;
 138   unsigned long I_TLBAssoc;
 139   unsigned long D_TLBSize;
 140   unsigned long D_TLBAssoc;
 141
 142   unsigned long ExtendedVPD;            /* Offset to extended VPD area;
 143                                            null if unused                     */
 144   } VPD;
 145
 146 typedef enum _DEVICE_FLAGS {
 147   Enabled = 0x4000,                     /* 1 - PCI device is enabled          */
 148   Integrated = 0x2000,
 149   Failed = 0x1000,                      /* 1 - device failed POST code tests  */
 150   Static = 0x0800,                      /* 0 - dynamically configurable
 151                                            1 - static                         */
 152   Dock = 0x0400,                        /* 0 - not a docking station device
 153                                            1 - is a docking station device    */
 154   Boot = 0x0200,                        /* 0 - device cannot be used for BOOT
 155                                            1 - can be a BOOT device           */
 156   Configurable = 0x0100,                /* 1 - device is configurable         */
 157   Disableable = 0x80,                   /* 1 - device can be disabled         */
 158   PowerManaged = 0x40,                  /* 0 - not managed; 1 - managed       */
 159   ReadOnly = 0x20,                      /* 1 - device is read only            */
 160   Removable = 0x10,                     /* 1 - device is removable            */
 161   ConsoleIn = 0x08,
 162   ConsoleOut = 0x04,
 163   Input = 0x02,
 164   Output = 0x01
 165   } DEVICE_FLAGS;
 166
 167 typedef enum _BUS_ID {
 168   ISADEVICE = 0x01,
 169   EISADEVICE = 0x02,
 170   PCIDEVICE = 0x04,
 171   PCMCIADEVICE = 0x08,
 172   PNPISADEVICE = 0x10,
 173   MCADEVICE = 0x20,
 174   MXDEVICE = 0x40,                      /* Devices on mezzanine bus           */
 175   PROCESSORDEVICE = 0x80,               /* Devices on processor bus           */
 176   VMEDEVICE = 0x100,
 177   } BUS_ID;
 178
 179 typedef struct _DEVICE_ID {
 180   unsigned long BusId;                  /* See BUS_ID enum above              */
 181   unsigned long DevId;                  /* Big Endian format                  */
 182   unsigned long SerialNum;              /* For multiple usage of a single
 183                                            DevId                              */
 184   unsigned long Flags;                  /* See DEVICE_FLAGS enum above        */
 185   unsigned char BaseType;               /* See pnp.h for bit definitions      */
 186   unsigned char SubType;                /* See pnp.h for bit definitions      */
 187   unsigned char Interface;              /* See pnp.h for bit definitions      */
 188   unsigned char Spare;
 189   } DEVICE_ID;
 190
 191 typedef union _BUS_ACCESS {
 192   struct _PnPAccess{
 193     unsigned char CSN;
 194     unsigned char LogicalDevNumber;
 195     unsigned short ReadDataPort;
 196     } PnPAccess;
 197   struct _ISAAccess{
 198     unsigned char SlotNumber;           /* ISA Slot Number generally not
 199                                            available; 0 if unknown            */
 200     unsigned char LogicalDevNumber;
 201     unsigned short ISAReserved;
 202     } ISAAccess;
 203   struct _MCAAccess{
 204     unsigned char SlotNumber;
 205     unsigned char LogicalDevNumber;
 206     unsigned short MCAReserved;
 207     } MCAAccess;
 208   struct _PCMCIAAccess{
 209     unsigned char SlotNumber;
 210     unsigned char LogicalDevNumber;
 211     unsigned short PCMCIAReserved;
 212     } PCMCIAAccess;
 213   struct _EISAAccess{
 214     unsigned char SlotNumber;
 215     unsigned char FunctionNumber;
 216     unsigned short EISAReserved;
 217     } EISAAccess;
 218   struct _PCIAccess{
 219     unsigned char BusNumber;
 220     unsigned char DevFuncNumber;
 221     unsigned short PCIReserved;
 222     } PCIAccess;
 223   struct _ProcBusAccess{
 224     unsigned char BusNumber;
 225     unsigned char BUID;
 226     unsigned short ProcBusReserved;
 227     } ProcBusAccess;
 228   } BUS_ACCESS;
 229
 230 /* Per logical device information */
 231 typedef struct _PPC_DEVICE {
 232   DEVICE_ID DeviceId;
 233   BUS_ACCESS BusAccess;
 234
 235   /* The following three are offsets into the DevicePnPHeap */
 236   /* All are in PnP compressed format                       */
 237   unsigned long AllocatedOffset;        /* Allocated resource description     */
 238   unsigned long PossibleOffset;         /* Possible resource description      */
 239   unsigned long CompatibleOffset;       /* Compatible device identifiers      */
 240   } PPC_DEVICE;
 241
 242 typedef enum _CPU_STATE {
 243   CPU_GOOD = 0,                         /* CPU is present, and active         */
 244   CPU_GOOD_FW = 1,                      /* CPU is present, and in firmware    */
 245   CPU_OFF = 2,                          /* CPU is present, but inactive       */
 246   CPU_FAILED = 3,                       /* CPU is present, but failed POST    */
 247   CPU_NOT_PRESENT = 255                 /* CPU not present                    */
 248   } CPU_STATE;
 249
 250 typedef struct _PPC_CPU {
 251   unsigned long CpuType;                /* Result of mfspr from Processor
 252                                            Version Register (PVR).
 253                                            PVR(0-15) = Version (e.g. 601)
 254                                            PVR(16-31 = EC Level               */
 255   unsigned char CpuNumber;              /* CPU Number for this processor      */
 256   unsigned char CpuState;               /* CPU State, see CPU_STATE enum      */
 257   unsigned short Reserved;
 258   } PPC_CPU;
 259
 260 typedef struct _PPC_MEM {
 261   unsigned long SIMMSize;               /* 0 - absent or bad
 262                                            8M, 32M (in MB)                    */
 263   } PPC_MEM;
 264
 265 typedef enum _MEM_USAGE {
 266   Other = 0x8000,
 267   ResumeBlock = 0x4000,                 /* for use by power management        */
 268   SystemROM = 0x2000,                   /* Flash memory (populated)           */
 269   UnPopSystemROM = 0x1000,              /* Unpopulated part of SystemROM area */
 270   IOMemory = 0x0800,
 271   SystemIO = 0x0400,
 272   SystemRegs = 0x0200,
 273   PCIAddr = 0x0100,
 274   PCIConfig = 0x80,
 275   ISAAddr = 0x40,
 276   Unpopulated = 0x20,                   /* Unpopulated part of System Memory  */
 277   Free = 0x10,                          /* Free part of System Memory         */
 278   BootImage = 0x08,                     /* BootImage part of System Memory    */
 279   FirmwareCode = 0x04,                  /* FirmwareCode part of System Memory */
 280   FirmwareHeap = 0x02,                  /* FirmwareHeap part of System Memory */
 281   FirmwareStack = 0x01                  /* FirmwareStack part of System Memory*/
 282   } MEM_USAGE;
 283
 284 typedef struct _MEM_MAP {
 285   unsigned long Usage;                  /* See MEM_USAGE above                */
 286   unsigned long BasePage;               /* Page number measured in 4KB pages  */
 287   unsigned long PageCount;              /* Page count measured in 4KB pages   */
 288   } MEM_MAP;
 289
 290 typedef struct _RESIDUAL {
 291   unsigned long ResidualLength;         /* Length of Residual                 */
 292   unsigned char Version;                /* of this data structure             */
 293   unsigned char Revision;               /* of this data structure             */
 294   unsigned short EC;                    /* of this data structure             */
 295   /* VPD */
 296   VPD VitalProductData;
 297   /* CPU */
 298   unsigned short MaxNumCpus;            /* Max CPUs in this system            */
 299   unsigned short ActualNumCpus;         /* ActualNumCpus < MaxNumCpus means   */
 300                                         /* that there are unpopulated or      */
 301                                         /* otherwise unusable cpu locations   */
 302   PPC_CPU Cpus[MAX_CPUS];
 303   /* Memory */
 304   unsigned long TotalMemory;            /* Total amount of memory installed   */
 305   unsigned long GoodMemory;             /* Total amount of good memory        */
 306   unsigned long ActualNumMemSegs;
 307   MEM_MAP Segs[MAX_MEM_SEGS];
 308   unsigned long ActualNumMemories;
 309   PPC_MEM Memories[MAX_MEMS];
 310   /* Devices */
 311   unsigned long ActualNumDevices;
 312   PPC_DEVICE Devices[MAX_DEVICES];
 313   unsigned char DevicePnPHeap[2*MAX_DEVICES*AVE_PNP_SIZE];
 314   } RESIDUAL;
 315
 316
 317 extern RESIDUAL *res;
 318 extern void print_residual_device_info(void);
 319 extern PPC_DEVICE *residual_find_device(unsigned long BusMask,
 320                                         unsigned char * DevID, int BaseType,
 321                                         int SubType, int Interface, int n);
 322 extern PnP_TAG_PACKET *PnP_find_packet(unsigned char *p, unsigned packet_tag,
 323                                        int n);
 324 extern PnP_TAG_PACKET *PnP_find_small_vendor_packet(unsigned char *p,
 325                                                     unsigned packet_type,
 326                                                     int n);
 327 extern PnP_TAG_PACKET *PnP_find_large_vendor_packet(unsigned char *p,
 328                                                     unsigned packet_type,
 329                                                     int n);
 330 #endif /* __ASSEMBLY__ */
 331 #endif  /* ndef _RESIDUAL_ */