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typedef struct Lock Lock;
typedef struct Label Label;
typedef struct Ureg Ureg;
typedef struct Mach Mach;
typedef struct FPsave FPsave;
typedef struct Notsave Notsave;
typedef struct PMMU PMMU;
typedef struct Confmem Confmem;
typedef struct Conf Conf;
typedef struct Proc Proc;
typedef struct ISAConf ISAConf;
typedef uvlong Tval;
typedef void KMap;
#define VA(k) ((uintptr)(k))
#define kmap(p) (KMap*)((p)->pa|kseg0)
#define kunmap(k)
#pragma incomplete Ureg
struct Lock
{
ulong key;
u32int sr;
uintptr pc;
Proc* p;
Mach* m;
int isilock;
};
struct Label
{
ulong sp;
ulong pc;
};
struct FPsave
{
ulong status;
ulong control;
ulong regs[8][3];
int fpstate;
};
enum
{
FPinit,
FPactive,
FPinactive,
};
struct Notsave
{
int emptiness;
};
struct PMMU
{
ulong l1[USTKTOP / MiB];
};
#include "../port/portdat.h"
struct Mach
{
int machno; /* physical id of processor */
uintptr splpc; /* pc of last caller to splhi */
Proc* proc; /* current process */
Proc* externup;
int flushmmu; /* flush current proc mmu state */
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;
Proc* readied; /* for runproc */
ulong schedticks; /* next forced context switch */
int cputype;
ulong delayloop;
/* stats */
int tlbfault;
int tlbpurge;
int pfault;
int cs;
int syscall;
int load;
int intr;
uvlong fastclock; /* last sampled value */
uvlong inidle; /* time spent in idlehands() */
ulong spuriousintr;
int lastintr;
int ilockdepth;
Perf perf;
uvlong cyclefreq; /* Frequency of user readable cycle counter */
};
struct Confmem
{
uintptr base;
usize npage;
uintptr limit;
uintptr kbase;
uintptr klimit;
};
struct Conf
{
ulong nmach; /* processors */
ulong nproc; /* processes */
Confmem mem[1]; /* physical memory */
ulong npage; /* total physical pages of memory */
usize upages; /* user page pool */
ulong copymode; /* 0 is copy on write, 1 is copy on reference */
ulong ialloc; /* max interrupt time allocation in bytes */
ulong pipeqsize; /* size in bytes of pipe queues */
ulong nimage; /* number of page cache image headers */
ulong nswap; /* number of swap pages */
int nswppo; /* max # of pageouts per segment pass */
ulong hz; /* processor cycle freq */
ulong mhz;
int monitor; /* flag */
};
struct
{
Lock;
int machs; /* bitmap of active CPUs */
int exiting; /* shutdown */
int ispanic; /* shutdown in response to a panic */
}active;
extern Mach *m;
#define up (((Mach*)MACHADDR)->externup)
extern Mach* machaddr[MAXMACH];
#define MACHP(n) (machaddr[n])
extern uintptr kseg0;
#define AOUT_MAGIC (E_MAGIC)
#define NCOLOR 1
struct ISAConf
{
char *type;
ulong port, irq;
};
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