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