typedef struct Conf	Conf;
typedef struct FPsave	FPsave;
typedef struct Label	Label;
typedef struct Lock	Lock;
typedef struct MMU	MMU;
typedef struct Mach	Mach;
typedef struct Notsave	Notsave;
typedef struct Page	Page;
typedef struct PMMU	PMMU;
typedef struct Proc	Proc;
typedef struct Ureg	Ureg;
typedef struct Vctl	Vctl;

/*
 *  parameters for sysproc.c
 */
#define AOUT_MAGIC	(I_MAGIC)

struct Lock
{
	ulong	key;
	ulong	sr;
	ulong	pc;
	Proc	*p;
	ushort	isilock;
};

struct Label
{
	ulong	sp;
	ulong	pc;
};

/*
 *  no floating point, hence nothing to save
 */

/*
 * FPsave.status
 */
enum
{
	FPinit,
	FPinactive,
};
struct	FPsave
{
	int	dummy;
};

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	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	base0;		/* base of bank 0 */
	ulong	base1;		/* base of bank 1 */
	ulong	copymode;	/* 0 is copy on write, 1 is copy on reference */
	int	monitor;
	ulong	ialloc;		/* bytes available for interrupt time allocation */
	ulong	pipeqsize;	/* size in bytes of pipe queues */
};

/*
 *  MMU stuff in proc
 */
#define NCOLOR 1
struct PMMU
{
	int dummy;
};

/*
 *  things saved in the Proc structure during a notify
 */
struct Notsave
{
	int dummy;
};

#include "../port/portdat.h"

struct Mach
{
	int	machno;			/* physical id of processor */
	ulong	splpc;			/* pc of last caller to splhi */

	ulong*	pdb;			/* page directory base for this processor (va) */

	Proc*	proc;			/* current process on this processor */
	Proc*	externup;		/* extern register Proc *up */

	Page*	pdbpool;
	int	pdbcnt;

	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 */

	ulong	fairness;		/* for runproc */

	int	tlbfault;
	int	tlbpurge;
	int	pfault;
	int	cs;
	int	syscall;
	int	load;
	int	intr;
	vlong	fastclock;		/* last sampled value */
	vlong	intrts;			/* time stamp of last interrupt */
	int	flushmmu;		/* make current proc flush it's mmu state */

	ulong	spuriousintr;
	int	lastintr;

	int	loopconst;

	int	cpumhz;
	int	cpuhz;
	int	cpuidax;
	int	cpuiddx;
	char	cpuidid[16];
	char*	cpuidtype;

	vlong	mtrrcap;
	vlong	mtrrdef;
	vlong	mtrrfix[11];
	vlong	mtrrvar[32];		/* 256 max. */

	int	stack[1];
};

typedef struct Cycintr	Cycintr;

/*
 * fasttick timer interrupts
 */
struct Cycintr
{
	vlong	when;			/* fastticks when f should be called */
	void	(*f)(Ureg*, Cycintr*);
	void	*a;
	Cycintr	*next;
};

/*
 * Fake kmap
 */
typedef void		KMap;
#define	VA(k)		((ulong)(k))
#define	kmap(p)		(KMap*)((p)->pa|KZERO)
#define	kunmap(k)

struct
{
	Lock;
	int	machs;			/* bitmap of active CPUs */
	int	exiting;		/* shutdown */
	int	ispanic;		/* shutdown in response to a panic */
}active;

/*
 *  Each processor sees its own Mach structure at address MACHADDR.
 *  However, the Mach structures must also be available via the per-processor
 *  MMU information array machp, mainly for disambiguation and access to
 *  the clock which is only maintained by the bootstrap processor (0).
 */
Mach* machp[MAXMACH];
	
#define	MACHP(n)	(machp[n])

extern Mach	*m;
#define up	(((Mach*)MACHADDR)->externup)

enum
{
	OneMeg=	1024*1024,
};