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typedef struct Conf Conf;
typedef struct Confmem Confmem;
typedef struct FPsave FPsave;
typedef struct L1 L1;
typedef struct Label Label;
typedef struct Lock Lock;
typedef struct KMap KMap;
typedef struct MMMU MMMU;
typedef struct Mach Mach;
typedef struct Notsave Notsave;
typedef struct Page Page;
typedef struct Proc Proc;
typedef struct PMMU PMMU;
typedef struct Ureg Ureg;
typedef struct ISAConf ISAConf;
typedef uvlong Tval;
#pragma incomplete Ureg
#define MAXSYSARG 5 /* for mount(fd, mpt, flag, arg, srv) */
#define AOUT_MAGIC (E_MAGIC)
struct Lock
{
ulong key;
u32int sr;
uintptr pc;
Proc* p;
Mach* m;
int isilock;
};
struct Label
{
uintptr sp;
uintptr pc;
};
struct FPsave
{
ulong exc, scr;
uchar regs[256];
};
/*
* FPsave.status
*/
enum
{
FPinit,
FPactive,
FPinactive,
FPillegal = 0x100
};
struct Confmem
{
uintptr base;
uintptr limit;
usize npage;
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 */
int monitor;
};
/*
* things saved in the Proc structure during a notify
*/
struct Notsave {
int emptiness;
};
/*
* MMU stuff in proc
*/
#define NCOLOR 1
struct PMMU
{
L1 *l1;
Page *mmuused, *mmufree;
int nkmap;
Page *kmaptable;
};
#include "../port/portdat.h"
struct L1
{
Ref;
uintptr pa;
ulong *va;
L1 *next;
};
struct MMMU
{
L1 l1;
L1 *l1free;
int nfree;
uchar asid;
};
struct Mach
{
/* known to assembly */
int machno; /* physical id of processor */
uintptr splpc; /* pc of last caller to splhi */
Proc* proc; /* current process */
ulong excregs[3];
ulong cycleshi;
/* end of known to assembly */
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 */
ulong delayloop;
/* stats */
int tlbfault;
int tlbpurge;
int pfault;
int cs;
int syscall;
int load;
int intr;
int lastintr;
int ilockdepth;
Perf perf; /* performance counters */
int cpumhz;
uvlong cpuhz; /* speed of cpu */
uvlong cyclefreq; /* Frequency of user readable cycle counter */
MMMU;
int stack[1];
};
struct ISAConf
{
int dummy;
char *type;
ulong port;
int irq;
};
#define BUSUNKNOWN -1
struct
{
Lock;
int machs; /* bitmap of active CPUs */
int exiting; /* shutdown */
int ispanic; /* shutdown in response to a panic */
}active;
extern register Mach* m; /* R10 */
extern register Proc* up; /* R9 */
extern int normalprint;
extern ulong *mpcore, *slcr;
void nope(void);
#define NOPE nope();
/*
* hardware info about a device
*/
typedef struct {
ulong port;
int size;
} Devport;
struct DevConf
{
ulong intnum; /* interrupt number */
char *type; /* card type, malloced */
int nports; /* Number of ports */
Devport *ports; /* The ports themselves */
};
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