Kernel/arch/x86/include/mp.h

   1 /*
   2  */
   3 #ifndef _MP_H
   4 #define _MP_H
   5
   6 #define MPPTR_IDENT     ('_'|('M'<<8)|('P'<<16)|('_'<<24))
   7 #define MPTABLE_IDENT   ('P'|('C'<<8)|('M'<<16)|('P'<<24))
   8
   9 typedef struct sMPInfo {
  10         Uint32  Sig;    // '_MP_'
  11         Uint32  MPConfig;
  12         Uint8   Length;
  13         Uint8   Version;
  14         Uint8   Checksum;
  15         Uint8   Features[5];    // 2-4 are unused
  16 } tMPInfo;
  17
  18 typedef union uMPTable_Ent {
  19         Uint8   Type;
  20         struct {
  21                 Uint8   Type;
  22                 Uint8   APICID;
  23                 Uint8   APICVer;
  24                 Uint8   CPUFlags;       // bit 0: Enabled, bit 1: Boot Processor
  25                 Uint32  CPUSignature;   // Stepping, Model, Family
  26                 Uint32  FeatureFlags;
  27                 Uint32  Reserved[2];
  28         } __attribute__((packed))       Proc;   // 0x00
  29         struct {
  30                 Uint8   Type;
  31                 Uint8   ID;
  32                 char    TypeString[6];
  33         } __attribute__((packed))       Bus;    // 0x01
  34         struct {
  35                 Uint8   Type;
  36                 Uint8   ID;
  37                 Uint8   Version;
  38                 Uint8   Flags;  // bit 0: Enabled
  39                 Uint32  Addr;
  40         } __attribute__((packed))       IOAPIC; // 0x02
  41         struct {
  42                 Uint8   Type;
  43                 Uint8   IntType;
  44                 Uint16  Flags;  // 0,1: Polarity, 2,3: Trigger Mode
  45                 Uint8   SourceBusID;
  46                 Uint8   SourceBusIRQ;
  47                 Uint8   DestAPICID;
  48                 Uint8   DestAPICIRQ;
  49         } __attribute__((packed))       IOInt;
  50         struct {
  51                 Uint8   Type;
  52                 Uint8   IntType;
  53                 Uint16  Flags;  // 0,1: Polarity, 2,3: Trigger Mode
  54                 Uint8   SourceBusID;
  55                 Uint8   SourceBusIRQ;
  56                 Uint8   DestLocalAPICID;
  57                 Uint8   DestLocalAPICIRQ;
  58         } __attribute__((packed))       LocalInt;
  59 } __attribute__((packed)) tMPTable_Ent;
  60
  61 typedef struct sMPTable {
  62         Uint32  Sig;
  63         Uint16  BaseTableLength;
  64         Uint8   SpecRev;
  65         Uint8   Checksum;
  66
  67         char    OemID[8];
  68         char    ProductID[12];
  69
  70         Uint32  OEMTablePtr;
  71         Uint16  OEMTableSize;
  72         Uint16  EntryCount;
  73
  74         Uint32  LocalAPICMemMap;        //!< Address used to access the local APIC
  75         Uint16  ExtendedTableLen;
  76         Uint8   ExtendedTableChecksum;
  77         Uint8   Reserved;
  78
  79         tMPTable_Ent    Entries[];
  80 } tMPTable;
  81
  82 typedef volatile struct {
  83         Uint32  Addr;
  84         Uint32  Resvd1[3];
  85         union {
  86                 Uint8   Byte;
  87                 Uint16  Word;
  88                 Uint32  DWord;
  89         }       Value;
  90         Uint32  Resvd2[3];
  91 }       tIOAPIC;
  92
  93 typedef struct {
  94         Uint32  Val;
  95         Uint32  Padding[3];
  96 }       tReg;
  97
  98 typedef volatile struct {
  99         tReg    _unused;
 100         tReg    _unused2;
 101         tReg    ID;
 102         tReg    Version;
 103 }       tAPIC;
 104
 105 #endif