FreeBSD/Linux Kernel Cross Reference
sys/ppc/dat.h

     typedef struct Conf     Conf;
     typedef struct FPsave   FPsave;
     typedef struct ISAConf  ISAConf;
     typedef struct Imap     Imap;
     typedef struct Label    Label;
     typedef struct Lock     Lock;
     typedef struct Mach     Mach;
     typedef struct Notsave  Notsave;
     typedef struct PCArch   PCArch;
    typedef struct PMMU     PMMU;
    typedef struct Page     Page;
    typedef struct Pcidev   Pcidev;
    typedef struct Proc     Proc;
    typedef struct Sys      Sys;
    typedef struct Ureg     Ureg;
    typedef struct Vctl     Vctl;
    
    #pragma incomplete Ureg
    #pragma incomplete Imap
    
    #define MAXSYSARG       5       /* for mount(fd, mpt, flag, arg, srv) */
    
    /*
     *  parameters for sysproc.c
     */
    #define AOUT_MAGIC      Q_MAGIC
    
    /*
     *  machine dependent definitions used by ../port/dat.h
     */
    
    struct Lock
    {
            ulong   key;                    /* semaphore (non-zero = locked) */
            ulong   sr;
            ulong   pc;
            Proc    *p;
            ulong   pid;
            ushort  isilock;
    };
    
    struct Label
    {
            ulong   sp;
            ulong   pc;
    };
    
    /*
     * Proc.fpstate
     */
    enum
    {
            /* Floating point states */
            FPinit = 0,
            FPactive = 1,
            FPinactive = 2,
            /* Bit that's or-ed in during note handling (FP is illegal in note handlers) */
            FPillegal = 0x100,
    };
    
    /*
     * This structure must agree with fpsave and fprestore asm routines
     */
    struct FPsave
    {
            double  fpreg[32];
            union {
                    double  fpscrd;
                    struct {
                            ulong   pad;
                            ulong   fpscr;
                    };
            };
    };
    
    struct Conf
    {
            ulong   nmach;          /* processors */
            ulong   nproc;          /* processes */
            ulong   npage0;         /* total physical pages of memory */
            ulong   npage1;         /* total physical pages of memory */
            ulong   npage;          /* total physical pages of memory */
            ulong   base0;          /* base of bank 0 */
            ulong   base1;          /* base of bank 1 */
            ulong   upages;         /* user page pool */
            ulong   nimage;         /* number of page cache image headers */
            ulong   nswap;          /* number of swap pages */
            int     nswppo;         /* max # of pageouts per segment pass */
            ulong   copymode;       /* 0 is copy on write, 1 is copy on reference */
            int     monitor;        /* has display? */
            ulong   ialloc;         /* bytes available for interrupt time allocation */
            ulong   pipeqsize;      /* size in bytes of pipe queues */
    };
    
    /*
     *  mmu goo in the Proc structure
     */
    #define NCOLOR 1
    struct PMMU
   {
           int     mmupid;
           Ureg    *mmureg;                /* pointer to ureg structure */
   };
   
   /*
    *  things saved in the Proc structure during a notify
    */
   struct Notsave
   {
           ulong   UNUSED;
   };
   
   #include "../port/portdat.h"
   
   /*
    *  machine dependent definitions not used by ../port/dat.h
    */
   /*
    * Fake kmap
    */
   typedef void            KMap;
   #define VA(k)           ((ulong)(k))
   #define kmap(p)         (KMap*)((p)->pa|KZERO)
   #define kunmap(k)
   
   struct Mach
   {
           /* OFFSETS OF THE FOLLOWING KNOWN BY l.s */
   /*0x00*/        int     machno; /* physical id of processor */
   /*0x04*/        ulong   splpc;  /* pc that called splhi() */
   /*0x08*/        Proc    *proc;  /* current process on this processor */
           /* Debugging/statistics for software TLB in l.s (therefore, also known by l.s) */
   /*0x0c*/        ulong   tlbfault;       /* type of last miss */
   /*0x10*/        ulong   imiss;  /* number of instruction misses */
   /*0x14*/        ulong   dmiss;  /* number of data misses */
   
           /* ordering from here on irrelevant */
   
           Imap*   imap;
   
           ulong   ticks;          /* of the clock since boot time */
           Label   sched;          /* scheduler wakeup */
           Lock    alarmlock;      /* access to alarm list */
           void    *alarm;         /* alarms bound to this clock */
           int     inclockintr;
           int     cputype;
           ulong   loopconst;
           Perf    perf;           /* performance counters */
   
           Proc*   readied;        /* for runproc */
           ulong   schedticks;     /* next forced context switch */
   
           ulong   clkin;          /* basic clock frequency */
           ulong   vco_out;
           vlong   cpuhz;
           uvlong  cyclefreq;      /* Frequency of user readable cycle counter */
           ulong   bushz;
           ulong   dechz;
           ulong   tbhz;
           ulong   cpmhz;          /* communications processor module frequency */
           ulong   brghz;          /* baud rate generator frequency */
   
           ulong   pcclast;
           uvlong  fastclock;
   
           int     tlbpurge;       /* # of tlb purges */
           int     pfault;         /* # of page faults */
           int     cs;
           int     syscall;
           int     load;
           int     intr;
           int     flushmmu;       /* make current proc flush it's mmu state */
           int     ilockdepth;
   
           ulong   ptabbase;       /* start of page table in kernel virtual space */
           int     slotgen;        /* next pte (byte offset) when pteg is full */
           int     mmupid;         /* next mmu pid to use */
           int     sweepcolor;
           int     trigcolor;
           Rendez  sweepr;
   
           ulong   spuriousintr;
           int     lastintr;
   
           /* MUST BE LAST */
           int     stack[1];
   };
   
   struct
   {
           Lock;
           short   machs;
           short   exiting;
           short   ispanic;
   }active;
   
   /*
    *  a parsed plan9.ini line
    */
   #define NISAOPT         8
   
   struct ISAConf {
           char    *type;
           ulong   port;
           int     irq;
           ulong   dma;
           ulong   mem;
           ulong   size;
           ulong   freq;
   
           int     nopt;
           char    *opt[NISAOPT];
   };
   
   struct Vctl {
           Vctl*   next;           /* handlers on this vector */
   
           char    name[KNAMELEN]; /* of driver */
           int     isintr;         /* interrupt or fault/trap */
           int     irq;
   
           void    (*f)(Ureg*, void*);     /* handler to call */
           void*   a;              /* argument to call it with */
   };
   
   extern Mach mach0;
   
   extern register Mach *m;
   extern register Proc *up;
   
   extern FPsave initfp;

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