dat.h

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    1 typedef struct Conf     Conf;
    2 typedef struct Confmem  Confmem;
    3 typedef struct FPsave   FPsave;
    4 typedef struct ISAConf  ISAConf;
    5 typedef struct Label    Label;
    6 typedef struct Lock     Lock;
    7 typedef struct Mach     Mach;
    8 typedef struct Notsave  Notsave;
    9 typedef struct Page     Page;
   10 typedef struct PCArch   PCArch;
   11 typedef struct PCB      PCB;
   12 typedef struct Pcidev   Pcidev;
   13 typedef struct PMMU     PMMU;
   14 typedef struct Proc     Proc;
   15 typedef struct Sys      Sys;
   16 typedef struct Ureg     Ureg;
   17 typedef struct Vctl     Vctl;
   18 typedef vlong           Tval;
   19 
   20 #define MAXSYSARG       6       /* for mount(fd, mpt, flag, arg, srv) */
   21 
   22 /*
   23  *  parameters for sysproc.c
   24  */
   25 #define AOUT_MAGIC      L_MAGIC
   26 
   27 /*
   28  *  machine dependent definitions used by ../port/dat.h
   29  */
   30 
   31 struct Lock
   32 {
   33         ulong   key;                    /* semaphore (non-zero = locked) */
   34         ulong   sr;
   35         ulong   pc;
   36         Proc    *p;
   37         Mach    *m;
   38         ulong   pid;
   39         ushort  isilock;
   40 };
   41 
   42 struct Label
   43 {
   44         ulong   sp;
   45         ulong   pc;
   46 };
   47 
   48 /*
   49  * Proc.fpstate
   50  */
   51 enum
   52 {
   53         /* floating point states */
   54         FPinit,
   55         FPactive,
   56         FPinactive,
   57 
   58         /* bit or'd with the state */
   59         FPillegal= 0x100,
   60 };
   61 
   62 struct  FPsave
   63 {
   64         long    fpreg[2*32];
   65         long    dummy;          /* lower bits of FPCR, useless */
   66         long    fpstatus;
   67 };
   68 
   69 struct Confmem
   70 {
   71         ulong   base;
   72         ulong   npage;
   73         ulong   kbase;
   74         ulong   klimit;
   75 };
   76 
   77 struct Conf
   78 {
   79         ulong   nmach;          /* processors */
   80         ulong   nproc;          /* processes */
   81         Confmem mem[2];
   82         ulong   npage;          /* total physical pages of memory */
   83         ulong   upages;         /* user page pool */
   84         ulong   nimage;         /* number of page cache image headers */
   85         ulong   nswap;          /* number of swap pages */
   86         int     nswppo;         /* max # of pageouts per segment pass */
   87         ulong   copymode;       /* 0 is copy on write, 1 is copy on reference */
   88         int     monitor;                /* has display? */
   89         ulong   ialloc;         /* bytes available for interrupt time allocation */
   90         ulong   pipeqsize;      /* size in bytes of pipe queues */
   91 };
   92 
   93 /*
   94  *  mmu goo in the Proc structure
   95  */
   96 struct PMMU
   97 {
   98         Page    *mmutop;        /* 1st level table */
   99         Page    *mmulvl2;       /* 2nd level table */
  100         Page    *mmufree;       /* unused page table pages */
  101         Page    *mmuused;       /* used page table pages, except for mmustk */
  102 };
  103 
  104 /*
  105  *  things saved in the Proc structure during a notify
  106  */
  107 struct Notsave
  108 {
  109         ulong   UNUSED;
  110 };
  111 
  112 #include "../port/portdat.h"
  113 
  114 /*
  115  *  machine dependent definitions not used by ../port/dat.h
  116  */
  117 /*
  118  * Fake kmap
  119  */
  120 typedef void            KMap;
  121 #define VA(k)           ((ulong)(k))
  122 #define kmap(p)         (KMap*)((p)->pa|KZERO)
  123 #define kunmap(k)
  124 
  125 /*
  126  *      Process Control Block, used by PALcode
  127  */
  128 struct PCB {
  129         uvlong  ksp;
  130         uvlong  usp;
  131         uvlong  ptbr;
  132         ulong   asn;
  133         ulong   pcc;
  134         uvlong  unique;
  135         ulong   fen;
  136         ulong   dummy;
  137         uvlong  rsrv1;
  138         uvlong  rsrv2;
  139 };
  140 
  141 struct Mach
  142 {
  143         /* OFFSETS OF THE FOLLOWING KNOWN BY l.s */
  144         int     machno;                 /* physical id of processor */
  145         ulong   splpc;                  /* pc that called splhi() */
  146         Proc    *proc;                  /* current process on this processor */
  147 
  148         /* ordering from here on irrelevant */
  149 
  150         ulong   ticks;                  /* of the clock since boot time */
  151         Label   sched;                  /* scheduler wakeup */
  152         Lock    alarmlock;              /* access to alarm list */
  153         void    *alarm;                 /* alarms bound to this clock */
  154         int     inclockintr;
  155 
  156         Proc*   readied;                /* for runproc */
  157         ulong   schedticks;     /* next forced context switch */
  158 
  159         vlong   cpuhz;                  /* hwrpb->cfreq */
  160         uvlong  cyclefreq;              /* Frequency of user readable cycle counter */
  161         ulong   pcclast;
  162         uvlong  fastclock;
  163         Perf    perf;                   /* performance counters */
  164 
  165         int     tlbfault;               /* only used by devproc; no access to tlb */
  166         int     tlbpurge;               /* ... */
  167         int     pfault;
  168         int     cs;
  169         int     syscall;
  170         int     load;
  171         int     intr;
  172         int     flushmmu;               /* make current proc flush it's mmu state */
  173         int     ilockdepth;
  174 
  175         ulong   spuriousintr;
  176         int     lastintr;
  177 
  178         PCB;
  179 
  180         /* MUST BE LAST */
  181         int     stack[1];
  182 };
  183 
  184 struct
  185 {
  186         Lock;
  187         short   machs;
  188         short   exiting;
  189         short   ispanic;
  190 }active;
  191 
  192 /*
  193  *      Implementation-dependant functions (outside of Alpha architecture proper).
  194  *      Called PCArch because that's what mkdevc calls it (for the PC).
  195  */
  196 struct PCArch
  197 {
  198         char*   id;
  199         int     (*ident)(void);
  200 
  201         void    (*coreinit)(void);              /* set up core logic, PCI mappings etc */
  202         void    (*corehello)(void);             /* identify core logic to user */
  203         void    (*coredetach)(void);            /* restore core logic before return to console */
  204         void    *(*pcicfg)(int, int);           /* map and point to PCI cfg space */
  205         void    *(*pcimem)(int, int);           /* map and point to PCI memory space */
  206         int     (*intrenable)(Vctl*);
  207         int     (*intrvecno)(int);
  208         int     (*intrdisable)(int);
  209 
  210         int     (*_inb)(int);
  211         ushort  (*_ins)(int);
  212         ulong   (*_inl)(int);
  213         void    (*_outb)(int, int);
  214         void    (*_outs)(int, ushort);
  215         void    (*_outl)(int, ulong);
  216         void    (*_insb)(int, void*, int);
  217         void    (*_inss)(int, void*, int);
  218         void    (*_insl)(int, void*, int);
  219         void    (*_outsb)(int, void*, int);
  220         void    (*_outss)(int, void*, int);
  221         void    (*_outsl)(int, void*, int);
  222 };
  223 
  224 /*
  225  *  a parsed plan9.ini line
  226  */
  227 #define NISAOPT         8
  228 
  229 struct ISAConf {
  230         char    *type;
  231         ulong   port;
  232         int     irq;
  233         ulong   dma;
  234         ulong   mem;
  235         ulong   size;
  236         ulong   freq;
  237 
  238         int     nopt;
  239         char    *opt[NISAOPT];
  240 };
  241 
  242 extern PCArch   *arch;
  243 
  244 #define MACHP(n)        ((Mach *)((int)&mach0+n*BY2PG))
  245 extern Mach             mach0;
  246 
  247 extern register Mach    *m;
  248 extern register Proc    *up;
  249 
  250 /*
  251  *  hardware info about a device
  252  */
  253 typedef struct {
  254         ulong   port;   
  255         int     size;
  256 } Devport;
  257 
  258 struct DevConf
  259 {
  260         ulong   intnum; /* interrupt number */
  261         char    *type;  /* card type, malloced */
  262         int     nports; /* Number of ports */
  263         Devport *ports; /* The ports themselves */
  264 };
  265 
  266 extern FPsave initfp;

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sys/alphapc/dat.h