typedef struct Bit3msg Bit3msg;
typedef struct Conf Conf;
typedef struct FPsave FPsave;
typedef struct Hotmsg Hotmsg;
typedef struct Lance Lance;
typedef struct Lancemem Lancemem;
typedef struct Label Label;
typedef struct Lock Lock;
typedef struct Mach Mach;
typedef struct MMU MMU;
typedef struct PMMU PMMU;
typedef struct Softtlb Softtlb;
typedef struct Ureg Ureg;
typedef struct User User;
/*
* parameters for sysproc.c
*/
#define AOUT_MAGIC V_MAGIC
/*
* machine dependent definitions used by ../port/dat.h
*/
struct Lock
{
ulong *sbsem; /* addr of sync bus semaphore */
ulong pc;
};
struct Label
{
ulong pc;
ulong sp;
};
struct Conf
{
ulong nmach; /* processors */
ulong nproc; /* processes */
ulong npgrp; /* process groups */
ulong npage0; /* total physical pages of memory */
ulong npage1; /* total physical pages of memory */
ulong npage; /* total physical pages of memory */
ulong nseg; /* number of segments */
ulong nimage; /* number of page cache image headers */
ulong npagetab; /* number of pte tables */
ulong nswap; /* number of swap pages */
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) */
ulong nnoifc; /* number of nonet interfaces */
ulong nnoconv; /* number of nonet conversations/ifc */
ulong nurp; /* max urp conversations */
ulong nasync; /* number of async protocol modules */
ulong npipe; /* number of pipes */
ulong maxialloc; /* maximum bytes used by ialloc */
ulong base0; /* base of bank 0 */
ulong base1; /* base of bank 1 */
ulong copymode; /* 0 is copy on write, 1 is copy on reference */
ulong ipif; /* Ip protocol interfaces */
ulong ip; /* Ip conversations per interface */
ulong arp; /* Arp table size */
ulong frag; /* Ip fragment assemble queue size */
ulong cntrlp; /* panic on ^P */
ulong dkif; /* number of datakit interfaces */
};
/*
* floating point registers
*/
enum
{
FPinit,
FPactive,
FPinactive,
};
struct FPsave
{
long fpreg[32];
long fpstatus;
};
/*
* mmu goo in the Proc structure
*/
struct PMMU
{
int pidonmach[MAXMACH];
};
#include "../port/portdat.h"
/*
* machine dependent definitions not used by ../port/dat.h
*/
struct Bit3msg
{
ulong cmd;
ulong addr;
ulong count;
ulong rcount;
};
struct Hotmsg
{
ulong cmd;
ulong param[5];
Rendez r;
uchar intr; /* flag: interrupt has occurred */
uchar abort; /* flag: don't interrupt */
ushort wlen; /* length of last message written */
};
struct Mach
{
int machno; /* physical id of processor NB. MUST BE FIRST */
Softtlb *stb; /* Software tlb simulation NB. MUST BE SECOND */
ulong splpc; /* pc that called splhi() */
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 */
Page *ufreeme; /* address of upage of exited process */
int tlbfault; /* this offset known in l.s/utlbmiss() */
int tlbpurge;
int pfault;
int cs;
int syscall;
int load;
int intr;
int stack[1];
};
/*
* machine dependent definitions not used by ../port/dat.h
*/
struct Softtlb
{
ulong virt;
ulong phys;
};
/*
* Fake kmap
*/
typedef void KMap;
#define VA(k) ((ulong)(k))
#define kmap(p) (KMap*)((p)->pa|KZERO)
#define kunmap(k)
#define PPN(x) x
/*
* LANCE CSR3 (bus control bits)
*/
#define BSWP 0x4
#define ACON 0x2
#define BCON 0x1
/*
* 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 */
ushort busctl; /* bus control bits */
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) */
};
struct
{
Lock;
short machs;
short exiting;
}active;
#define MACHP(n) ((Mach *)(MACHADDR+n*BY2PG))
#define NERR 15
#define NNOTE 5
struct User
{
Proc *p;
FPsave fpsave; /* address of this is known by db */
int nerrlab;
Label errlab[NERR];
char error[ERRLEN];
char elem[NAMELEN]; /* last name element from namec */
Chan *slash;
Chan *dot;
/*
* Rest of structure controlled by devproc.c and friends.
* lock(&p->debug) to modify.
*/
Note note[NNOTE];
short nnote;
short notified; /* sysnoted is due */
Note lastnote;
int (*notify)(void*, char*);
void *ureg; /* User registers for notes */
void *dbgreg; /* User registers for debugging in proc */
ulong svstatus;
ulong svr1;
/*
* machine dependent User stuff
*/
/*
* I/O point for bit3 and hotrod interfaces.
* This is the easiest way to allocate
* them, but not the prettiest or most general.
*/
union{ /* for i/o from kernel */
Bit3msg kbit3;
Hotmsg khot;
};
union{ /* for i/o from user */
Bit3msg ubit3;
Hotmsg uhot;
};
union{ /* special location for Tflush */
Bit3msg fbit3;
Hotmsg fhot;
};
};
extern register Mach *m;
extern register User *u;