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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;
char machs[MAXMACH];
int exiting;
}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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