1991/0427/power/dat.h (diff list | history)

power/dat.h on 1990/0227
1990/0227		typedef struct Alarm Alarm;
1990/0324		typedef struct Bit3msg Bit3msg;
1990/0227		typedef struct Blist Blist; typedef struct Block Block; typedef struct Chan Chan; typedef struct Conf Conf; typedef struct Dev Dev; typedef struct Dirtab Dirtab; typedef struct Env Env; typedef struct Envp Envp; typedef struct Envval Envval;
1990/1228		typedef struct Etherpkt Etherpkt;
1990/0227		typedef struct FPsave FPsave;
1991/0209		typedef struct Hotmsg Hotmsg;
1990/1231		typedef struct Lance Lance; typedef struct Lancemem Lancemem;
1990/0227		typedef struct Label Label; typedef struct List List; typedef struct Lock Lock; typedef struct Mach Mach;
1991/0425		typedef struct Softtlb Softtlb;
1990/0227		typedef struct Mount Mount; typedef struct Mtab Mtab; typedef struct Note Note; typedef struct Orig Orig; typedef struct PTE PTE; typedef struct Page Page; typedef struct Pgrp Pgrp; typedef struct Proc Proc; typedef struct QLock QLock; typedef struct Qinfo Qinfo; typedef struct Queue Queue; typedef struct Ref Ref; typedef struct Rendez Rendez; typedef struct Seg Seg;
1990/03091		typedef struct Stream Stream;
1990/0227		typedef struct Ureg Ureg; typedef struct User User; typedef int Devgen(Chan*, Dirtab*, int, int, Dir*); struct List { void *next; }; struct Lock { ulong *sbsem; /* addr of sync bus semaphore */ ulong pc; }; struct Ref { Lock; int ref; }; struct QLock { Proc *head; /* next process waiting for object */ Proc *tail; /* last process waiting for object */
1990/0324		Lock use; /* to use object */ Lock queue; /* to access list */
1990/0227		};
1991/0306		struct Rendez { Lock; Proc *p; };
1990/0227		struct Label { ulong pc; ulong sp; }; struct Alarm { List; Lock; int busy; long dt; /* may underflow in clock(); must be signed */ void (*f)(void*); void *arg; };
1990/0324		struct Bit3msg
1990/0306		{ ulong cmd; ulong addr; ulong count;
1990/03081		ulong rcount;
1990/0306		};
1991/0209		struct Hotmsg { ulong cmd; ulong param[5];
1991/0306		Rendez r;
1991/0402		uchar intr; /* flag: interrupt has occurred */ uchar abort; /* flag: don't interrupt */
1991/0403		ushort wlen; /* length of last message written */
1991/0209		};
1990/0227		#define CHDIR 0x80000000L struct Chan {
1991/0411		QLock rdl; /* read access */ QLock wrl; /* write access */
1990/0227		Ref; union{ Chan *next; /* allocation */ ulong offset; /* in file */ }; ushort type; ushort dev; ushort mode; /* read/write */ ushort flag;
1990/11211		Qid qid;
1990/0227		Mount *mnt; /* mount point that derived Chan */ ulong mountid; int fid; /* for devmnt */
1990/1002		union{ Stream *stream; /* for stream channels */ void *aux;
1990/11211		Qid pgrpid; /* for #p/notepg */
1991/0421		int mntindex; /* for devmnt */
1990/1002		};
1990/0303		Chan *mchan; /* channel to mounted server */
1990/11211		Qid mqid; /* qid of root of mount point */
1990/0227		}; struct FPsave { long fpreg[32]; long fpstatus; }; struct Conf {
1990/0504		ulong nmach; /* processors */ ulong nproc; /* processes */ ulong npgrp; /* process groups */
1990/0614		ulong npage0; /* total physical pages of memory */
1990/0227		ulong npage; /* total physical pages of memory */ ulong norig; /* origins */ ulong npte; /* contiguous page table entries */ ulong nmod; /* single (modifying) page table entries */
1990/0504		ulong nalarm; /* alarms */ ulong nchan; /* channels */ ulong nenv; /* distinct environment values */ ulong nenvchar; /* environment text storage */ ulong npgenv; /* environment files per process group */ ulong nmtab; /* mounted-upon channels per process group */ ulong nmount; /* mounts */ ulong nmntdev; /* mounted devices (devmnt.c) */ ulong nmntbuf; /* buffers for devmnt.c messages */ ulong nmnthdr; /* headers for devmnt.c messages */ ulong nstream; /* streams */ ulong nqueue; /* stream queues */ ulong nblock; /* stream blocks */ ulong nsrv; /* public servers (devsrv.c) */
1990/0629		ulong nnoifc; /* number of nonet interfaces */ ulong nnoconv; /* number of nonet conversations/ifc */
1990/0717		ulong nurp; /* max urp conversations */
1990/1009		ulong nasync; /* number of async protocol modules */ ulong npipe; /* number of pipes */
1990/1211		ulong maxialloc; /* maximum bytes used by ialloc */ ulong base0; /* base of bank 0 */ ulong base1; /* base of bank 1 */
1990/1212		ulong copymode; /* 0 is copy on write, 1 is copy on reference */
1991/0424		ulong ipif; /* Ip protocol interfaces */ ulong ip; /* Ip conversations per interface */ ulong arp; /* Arp table size */ ulong frag; /* Ip fragment assemble queue size */
1990/0227		}; struct Dev { void (*reset)(void); void (*init)(void); Chan *(*attach)(char*); Chan *(*clone)(Chan*, Chan*); int (*walk)(Chan*, char*); void (*stat)(Chan*, char*); Chan *(*open)(Chan*, int); void (*create)(Chan*, char*, int, ulong); void (*close)(Chan*);
1991/0411		long (*read)(Chan*, void*, long, ulong); long (*write)(Chan*, void*, long, ulong);
1990/0227		void (*remove)(Chan*); void (*wstat)(Chan*, char*); }; struct Dirtab { char name[NAMELEN];
1990/11211		Qid qid;
1990/0227		long length; long perm; }; struct Env { Lock; Envval *val; char name[NAMELEN]; Env *next; /* in chain of Envs for a pgrp */ int pgref; /* # pgrps pointing here */ }; struct Envp { Env *env; int chref; /* # chans from pgrp pointing here */ };
1991/0425		struct Softtlb { ulong virt; ulong phys; };
1990/0227		struct Mach {
1991/0425		int machno; /* physical id of processor NB. MUST BE FIRST */ Softtlb *stb; /* Software tlb simulation NB. MUST BE SECOND */
1990/0227		ulong ticks; /* of the clock since boot time */ Proc *proc; /* current process on this processor */ Label sched; /* scheduler wakeup */ Lock alarmlock; /* access to alarm list */ void *alarm; /* alarms bound to this clock */ char pidhere[NTLBPID]; /* is this pid possibly in this mmu? */ int lastpid; /* last pid allocated on this machine */ Proc *pidproc[NTLBPID]; /* process that owns this tlbpid on this mach */
1991/0425		int tlbfault; int tlbpurge; int pfault; int cs; int syscall; int spinlock; int intr;
1990/0227		int stack[1]; }; struct Mount { Ref; /* also used as a lock when playing lists */ short term; /* terminates list */ ulong mountid; Mount *next; Chan *c; /* channel replacing underlying channel */ }; struct Mtab { Chan *c; /* channel mounted upon */ Mount *mnt; /* what's mounted upon it */ }; enum{ NUser, /* note provided externally */ NExit, /* process should exit */ NDebug, /* process should hang */ }; struct Note { char msg[ERRLEN]; int flag; /* whether system posted it */ }; struct Orig { Lock; Orig *next; /* for allocation */ ushort nproc; /* processes using it */ ushort npage; /* sum of refs of pages in it */ ushort flag; ulong va; /* va of 0th pte */ ulong npte; /* #pte's in list */ PTE *pte; Chan *chan; /* channel deriving segment (if open) */ ushort type; /* of channel (which could be non-open) */
1990/11211		Qid qid;
1990/0303		Chan *mchan;
1990/11211		Qid mqid;
1990/0227		ulong minca; /* base of region in chan */ ulong maxca; /* end of region in chan */ }; struct Page { Orig *o; /* origin of segment owning page */ ulong va; /* virtual address */ ulong pa; /* physical address */ ushort ref; Page *next; Page *prev; }; struct Pgrp { Ref; /* also used as a lock when mounting */ Pgrp *next;
1990/1110		int index; /* index in pgrp table */
1990/0227		ulong pgrpid; char user[NAMELEN]; int nmtab; /* highest active mount table entry, +1 */ int nenv; /* highest active env table entry, +1 */
1991/0212		QLock debug; /* single access via devproc.c */
1990/0227		Mtab *mtab; Envp *etab; }; struct PTE { Proc *proc; /* process owning this PTE (0 in Orig) */ PTE *nextmod; /* next at this va */ PTE *nextva; /* next in this proc at higher va */ Page *page; }; struct Seg { Proc *proc; /* process owning this segment */ Orig *o; /* root list of pte's */ ulong minva; /* va of 0th pte (not necessarily Seg->o->va) */ ulong maxva; /* va of last pte */ PTE *mod; /* list of modified pte's */ ulong pad[3]; /**/ }; struct Proc { Label sched; Mach *mach; /* machine running this proc */ char text[NAMELEN]; Proc *rnext; /* next process in run queue */ Proc *qnext; /* next process on queue for a QLock */ int state; short pidonmach[MAXMACH]; /* TLB pid on each mmu */ Page *upage; /* BUG: should be unlinked from page list */ Seg seg[NSEG];
1990/1211		ulong bssend; /* initial top of bss seg */
1990/0227		ulong pid;
1990/0324		int nchild; QLock wait; /* exiting children to be waited for */
1991/0109		Waitmsg waitmsg; /* this is large but must be addressable */
1990/0227		Proc *child; Proc *parent; Pgrp *pgrp; ulong parentpid; ulong time[6]; /* User, Sys, Real; child U, S, R */ short exiting; short insyscall; int fpstate; Lock debug; /* to access debugging elements of User */ Rendez *r; /* rendezvous point slept on */ Rendez sleep; /* place for tsleep and syssleep */ int wokeup; /* whether sleep was interrupted */ ulong pc; /* DEBUG only */
1990/1212		int kp; /* true if kernel process */
1990/0227		};
1990/1124		#define NERR 20
1990/0227		#define NFD 100 #define NNOTE 5 struct User { Proc *p; Label errlab[NERR]; int nerrlab;
1990/11211		char error[ERRLEN];
1990/0227		FPsave fpsave; /* address of this is known by vdb */ char elem[NAMELEN]; /* last name element from namec */ Chan *slash; Chan *dot; Chan *fd[NFD]; int maxfd; /* highest fd in use */
1990/0306		/*
1991/0209		* I/O point for bit3 and hotrod interfaces. * This is the easiest way to allocate
1990/0306		* them, but not the prettiest or most general. */
1991/0306		union{ /* for i/o from kernel */
1991/0209		Bit3msg kbit3; Hotmsg khot; };
1991/0306		union{ /* for i/o from user */
1991/0209		Bit3msg ubit3; Hotmsg uhot;
1991/0306		}; union{ /* special location for Tflush */ Bit3msg fbit3; Hotmsg fhot;
1991/0209		};
1990/0227		/* * Rest of structure controlled by devproc.c and friends. * lock(&p->debug) to modify. */ Note note[NNOTE]; short nnote; short notified; /* sysnoted is due */ int (*notify)(void*, char*); void *ureg; };
1990/0614		/* * Fake kmap */ typedef void KMap; #define VA(k) ((ulong)(k)) #define kmap(p) (KMap*)(p->pa|KZERO) #define kunmap(k)
1990/1212		#define PPN(x) x
1990/0227		/* * operations available to a queue */ struct Qinfo { void (*iput)(Queue*, Block*); /* input routine */ void (*oput)(Queue*, Block*); /* output routine */ void (*open)(Queue*, Stream*); void (*close)(Queue*); char *name;
1990/0911		void (*reset)(void); Qinfo *next;
1990/0227		}; /* * We reference lance buffers via descriptors kept in host memory */ struct Block { Block *next; uchar *rptr; /* first unconsumed byte */ uchar *wptr; /* first empty byte */ uchar *lim; /* 1 past the end of the buffer */ uchar *base; /* start of the buffer */ uchar flags; uchar type;
1990/1228		ulong va; /* virtual address if mapped for a dev */
1990/0227		}; /* flag bits */ #define S_DELIM 0x80 #define S_CLASS 0x07 /* type values */ #define M_DATA 0 #define M_CTL 1 #define M_HANGUP 2 /* * a list of blocks */ struct Blist { Lock; Block *first; /* first data block */ Block *last; /* last data block */ long len; /* length of list in bytes */
1990/0406		int nb; /* number of blocks in list */
1990/0227		}; /* * a queue of blocks */ struct Queue { Blist; int flag; Qinfo *info; /* line discipline definition */ Queue *other; /* opposite direction, same line discipline */ Queue *next; /* next queue in the stream */ void (*put)(Queue*, Block*);
1990/1018		QLock rlock; /* mutex for r */
1990/1212		Rendez r; /* standard place to wait for flow control */ Rendez *rp; /* where flow control wakeups go to */
1990/0227		void *ptr; /* private info for the queue */ }; #define QHUNGUP 0x1 /* flag bit meaning the stream has been hung up */ #define QINUSE 0x2 #define QHIWAT 0x4 /* queue has gone past the high water mark */
1990/0721		#define QDEBUG 0x8
1990/0227		/* * a stream head */ struct Stream {
1990/11161		QLock; /* structure lock */
1990/1009		short inuse; /* number of processes in stream */ short opens; /* number of processes with stream open */ ushort hread; /* number of reads after hangup */ ushort type; /* correlation with Chan */ ushort dev; /* ... */ ushort id; /* ... */
1990/0227		QLock rdlock; /* read lock */ Queue *procq; /* write queue at process end */ Queue *devq; /* read queue at device end */
1991/0411		Block *err; /* error message from down stream */
1990/0227		}; #define RD(q) ((q)->other < (q) ? (q->other) : q) #define WR(q) ((q)->other > (q) ? (q->other) : q) #define GLOBAL(a) (((ulong)(a)) & 0x80000000) #define STREAMTYPE(x) ((x)&0x1f) #define STREAMID(x) (((x)&~CHDIR)>>5) #define STREAMQID(i,t) (((i)<<5)|(t))
1990/0312		#define PUTNEXT(q,b) (*(q)->next->put)((q)->next, b) #define BLEN(b) ((b)->wptr - (b)->rptr)
1990/0403		#define QFULL(q) ((q)->flag & QHIWAT)
1990/0406		#define FLOWCTL(q) { if(QFULL(q->next)) flowctl(q); }
1990/0227		/* * stream file qid's & high water mark */ enum { Shighqid = STREAMQID(1,0) - 1, Sdataqid = Shighqid, Sctlqid = Sdataqid-1, Slowqid = Sctlqid,
1990/0406		Streamhi= (17*1024), /* byte count high water mark */
1990/0905		Streambhi= 32, /* block count high water mark */
1990/1228		}; /* * Ethernet packet buffers. */ struct Etherpkt { uchar d[6]; uchar s[6]; uchar type[2]; uchar data[1500]; uchar crc[4];
1990/0629		};
1991/0407		#define ETHERMINTU 60 /* minimum transmit size */ #define ETHERMAXTU 1514 /* maximum transmit size */ #define ETHERHDRSIZE 14 /* size of an ethernet header */
1990/1231		/*
1991/0109		* LANCE CSR3 (bus control bits) */ #define BSWP 0x4 #define ACON 0x2 #define BCON 0x1 /*
1990/1231		* system dependent lance stuff * filled by lancesetup() */ struct Lance { ushort lognrrb; /* log2 number of receive ring buffers */ ushort logntrb; /* log2 number of xmit ring buffers */ ushort nrrb; /* number of receive ring buffers */ ushort ntrb; /* number of xmit ring buffers */ ushort *rap; /* lance address register */ ushort *rdp; /* lance data register */
1991/0109		ushort busctl; /* bus control bits */
1990/1231		uchar ea[6]; /* our ether addr */ int sep; /* separation between shorts in lance ram as seen by host */ ushort *lanceram; /* start of lance ram as seen by host */ Lancemem *lm; /* start of lance ram as seen by lance */ Etherpkt *rp; /* receive buffers (host address) */ Etherpkt *tp; /* transmit buffers (host address) */ Etherpkt *lrp; /* receive buffers (lance address) */ Etherpkt *ltp; /* transmit buffers (lance address) */
1990/0227		}; #define PRINTSIZE 256 struct { Lock; short machs; short exiting; }active; extern register Mach *m; extern register User *u; /* * Process states */ enum { Dead = 0, Moribund, Zombie, Ready, Scheding, Running, Queueing, MMUing, Exiting, Inwait, Wakeme, Broken, }; extern char *statename[];
1990/11211		extern char user[NAMELEN]; extern char *errstrtab[];
1990/0227		/* * Chan flags */ #define COPEN 1 /* for i/o */ #define CMOUNT 2 /* is result of a mount/bind */ #define CCREATE 4 /* permits creation if CMOUNT */
1990/08141		#define CCEXEC 8 /* close on exec */
1990/0907		#define CFREE 16 /* not in use */
1990/0227		/* * Proc.time */ enum { TUser, TSys, TReal, TCUser, TCSys, TCReal, }; /* * floating point registers */ enum { FPinit, FPactive,
1990/0820		FPinactive,
1990/0227		}; /* * Memory management */ #define SSEG 0 #define TSEG 1 #define DSEG 2 #define BSEG 3 #define ESEG 4 /* used by exec to build new stack */ #define OWRPERM 0x01 /* write permission */ #define OPURE 0x02 /* original data mustn't be written */ #define OCACHED 0x04 /* cached; don't discard on exit */ /* * Access types in namec */ enum { Aaccess, /* as in access, stat */ Atodir, /* as in chdir */ Aopen, /* for i/o */ Amount, /* to be mounted upon */ Acreate, /* file is to be created */ }; #define NUMSIZE 12 /* size of formatted number */ #define MACHP(n) ((Mach *)(MACHADDR+n*BY2PG)) extern Conf conf; extern ulong initcode[]; extern Dev devtab[]; extern char devchar[]; extern FPsave initfp;
1990/0718
1990/1211		/* * parameters for sysproc.c */ #define AOUT_MAGIC V_MAGIC