Subversion Repositories planix.SVN

typedef struct Conf	Conf;

typedef struct Confmem	Confmem;

typedef struct FPsave	FPsave;

typedef struct ISAConf	ISAConf;

typedef struct Label	Label;

typedef struct Lock	Lock;

typedef struct Mach	Mach;

typedef struct Notsave	Notsave;

typedef struct Page	Page;

typedef struct PCArch	PCArch;

typedef struct Pcidev	Pcidev;

typedef struct PMMU	PMMU;

typedef struct Proc	Proc;

typedef struct Sys	Sys;

typedef struct Ureg	Ureg;

typedef struct Vctl	Vctl;

typedef long		Tval;

#pragma incomplete Ureg

#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;

	ulong	sr;

	ulong	pc;

	Proc	*p;

	Mach	*m;

	ushort	isilock;

};

struct Label

{

	ulong	sp;

	ulong	pc;

};

/*

 * Proc.fpstate

 */

enum

{

	FPinit,

	FPactive,

	FPinactive,

	/* bit or'd with the state */

	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 Confmem

{

	ulong	base;

	ulong	npage;

	ulong	kbase;

	ulong	klimit;

};

struct Conf

{

	ulong	nmach;		/* processors */

	ulong	nproc;		/* processes */

	Confmem	mem[1];

	ulong	npage;		/* total physical pages of memory */

	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;

};

/*

 *  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 */

	int	machno;			/* physical id of processor */

	ulong	splpc;			/* pc that called splhi() */

	Proc	*proc;			/* current process on this processor */

	/* ordering from here on irrelevant */

	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;

	Proc*	readied;		/* for runproc */

	ulong	schedticks;	/* next forced context switch */

	vlong	cpuhz;

	ulong	bushz;

	ulong	dechz;

	ulong	tbhz;

	uvlong	cyclefreq;		/* Frequency of user readable cycle counter */

	ulong	pcclast;

	uvlong	fastclock;

	Perf	perf;			/* performance counters */

	int	tlbfault;		/* only used by devproc; no access to tlb */

	int	tlbpurge;		/* ... */

	int	pfault;

	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;

	short	machs;

	short	exiting;

	short	ispanic;

}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];

};

#define	MACHP(n)	((Mach *)((int)&mach0+n*BY2PG))

extern Mach		mach0;

extern register Mach	*m;

extern register Proc	*up;

extern FPsave initfp;