291 lines
5.7 KiB
C
291 lines
5.7 KiB
C
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typedef struct Cisdat Cisdat;
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typedef struct Conf Conf;
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typedef struct Confmem Confmem;
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typedef struct FPU FPU;
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typedef struct FPenv FPenv;
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typedef struct FPsave FPsave;
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typedef struct DevConf DevConf;
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typedef struct Label Label;
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typedef struct Lock Lock;
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typedef struct MMU MMU;
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typedef struct Mach Mach;
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typedef struct Notsave Notsave;
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typedef struct Page Page;
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typedef struct PCMmap PCMmap;
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typedef struct PCMslot PCMslot;
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typedef struct PCMconftab PCMconftab;
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typedef struct PhysUart PhysUart;
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typedef struct PMMU PMMU;
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typedef struct Proc Proc;
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typedef struct Uart Uart;
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typedef struct Ureg Ureg;
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typedef struct Vctl Vctl;
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typedef long Tval;
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#pragma incomplete Ureg
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typedef void IntrHandler(Ureg*, void*);
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#define MAXSYSARG 5 /* for mount(fd, mpt, flag, arg, srv) */
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/*
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* parameters for sysproc.c
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*/
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#define AOUT_MAGIC (E_MAGIC)
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struct Lock
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{
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ulong key;
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ulong sr;
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ulong pc;
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Proc *p;
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Mach *m;
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ushort isilock;
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};
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struct Label
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{
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ulong sp;
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ulong pc;
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};
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/*
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* FPsave.status
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*/
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enum
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{
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FPinit,
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FPactive,
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FPinactive,
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};
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struct FPsave
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{
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ulong status;
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ulong control;
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ulong regs[8][3]; /* emulated fp */
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};
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struct Confmem
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{
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ulong base;
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ulong npage;
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ulong limit;
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ulong kbase;
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ulong klimit;
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};
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struct Conf
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{
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ulong nmach; /* processors */
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ulong nproc; /* processes */
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Confmem mem[2];
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ulong npage; /* total physical pages of memory */
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ulong upages; /* user page pool */
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ulong nimage; /* number of page cache image headers */
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ulong nswap; /* number of swap pages */
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int nswppo; /* max # of pageouts per segment pass */
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ulong copymode; /* 0 is copy on write, 1 is copy on reference */
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int monitor;
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ulong ialloc; /* bytes available for interrupt time allocation */
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ulong pipeqsize; /* size in bytes of pipe queues */
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ulong hz; /* processor cycle freq */
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ulong mhz;
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};
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/*
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* MMU stuff in proc
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*/
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enum
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{
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NCOLOR= 1, /* 1 level cache, don't worry about VCE's */
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Nmeg= 32, /* maximum size of user space */
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};
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struct PMMU
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{
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Page *l1page[Nmeg]; /* this's process' level 1 entries */
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ulong l1table[Nmeg]; /* ... */
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Page *mmufree; /* free mmu pages */
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};
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/*
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* things saved in the Proc structure during a notify
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*/
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struct Notsave
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{
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int dummy;
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};
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#include "../port/portdat.h"
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struct Mach
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{
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int machno; /* physical id of processor */
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ulong splpc; /* pc of last caller to splhi */
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Proc *proc; /* current process */
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ulong mmupid; /* process id currently in mmu & cache */
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ulong ticks; /* of the clock since boot time */
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Label sched; /* scheduler wakeup */
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Lock alarmlock; /* access to alarm list */
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void* alarm; /* alarms bound to this clock */
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int inclockintr;
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Proc* readied; /* for runproc */
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ulong schedticks; /* next forced context switch */
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/* stats */
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int tlbfault;
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int tlbpurge;
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int pfault;
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int cs;
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int syscall;
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int load;
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int intr;
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vlong fastclock; /* last sampled value */
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uvlong inidle; /* time spent in idlehands() */
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ulong spuriousintr;
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int lastintr;
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int ilockdepth;
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Perf perf; /* performance counters */
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int flushmmu; /* make current proc flush it's mmu state */
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Proc *pid2proc[31]; /* what proc holds what pid */
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int lastpid; /* highest assigned pid slot */
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int cpumhz; /* speed of cpu */
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vlong cpuhz; /* ... */
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uvlong cyclefreq; /* Frequency of user readable cycle counter */
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/* save areas for exceptions */
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ulong sfiq[5];
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ulong sirq[5];
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ulong sund[5];
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ulong sabt[5];
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int stack[1];
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};
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/*
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* Fake kmap since we direct map dram
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*/
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typedef void KMap;
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#define VA(k) ((ulong)(k))
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#define kmap(p) (KMap*)((p)->pa)
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#define kunmap(k)
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struct
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{
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Lock;
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int machs; /* bitmap of active CPUs */
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int exiting; /* shutdown */
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int ispanic; /* shutdown in response to a panic */
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}active;
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#define MACHP(n) ((Mach *)(MACHADDR+(n)*BY2PG))
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extern Mach *m;
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extern Proc *up;
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enum
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{
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OneMeg= 1024*1024,
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};
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/*
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* PCMCIA structures known by both port/cis.c and the pcmcia driver
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*/
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/*
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* Map between ISA memory space and PCMCIA card memory space.
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*/
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struct PCMmap {
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ulong ca; /* card address */
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ulong cea; /* card end address */
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ulong isa; /* local virtual address */
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int len; /* length of the ISA area */
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int attr; /* attribute memory */
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};
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/*
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* a PCMCIA configuration entry
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*/
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struct PCMconftab
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{
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int index;
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ushort irqs; /* legal irqs */
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uchar irqtype;
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uchar bit16; /* true for 16 bit access */
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struct {
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ulong start;
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ulong len;
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} io[16];
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int nio;
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uchar vpp1;
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uchar vpp2;
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uchar memwait;
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ulong maxwait;
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ulong readywait;
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ulong otherwait;
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};
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/*
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* PCMCIA card slot
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*/
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struct PCMslot
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{
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RWlock;
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Ref ref;
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long memlen; /* memory length */
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uchar slotno; /* slot number */
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void *regs; /* i/o registers */
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void *mem; /* memory */
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void *attr; /* attribute memory */
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/* status */
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uchar occupied; /* card in the slot */
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uchar configed; /* card configured */
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uchar inserted; /* card just inserted */
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Dev *dev; /* set in ctlwrite `configure' */
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/* cis info */
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int cisread; /* set when the cis has been read */
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char verstr[512]; /* version string */
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int ncfg; /* number of configurations */
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struct {
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ushort cpresent; /* config registers present */
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ulong caddr; /* relative address of config registers */
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} cfg[8];
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int nctab; /* number of config table entries */
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PCMconftab ctab[8];
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PCMconftab *def; /* default conftab */
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/* maps are fixed */
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PCMmap memmap;
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PCMmap attrmap;
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};
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/*
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* hardware info about a device
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*/
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typedef struct {
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ulong port;
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int size;
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} Devport;
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struct DevConf
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{
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RWlock; /* write: configure/unconfigure/suspend; read: normal access */
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ulong mem; /* mapped memory address */
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Devport *ports; /* ports[0]: mapped i/o regs, access size */
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int nports; /* always 1 for the bitsy */
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int itype; /* type of interrupt */
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ulong intnum; /* interrupt number */
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char *type; /* card type, mallocated */
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};
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