/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ 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 1struct 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;