c0d4498ab8
Remove unused fields and factor common fields into a new PMach struct in port/portdat.h. The fields machno, splpc and proc are not moved to PMach as they are part of the known offsets from assembly (l.s).
208 lines
3.9 KiB
C
208 lines
3.9 KiB
C
typedef struct Conf Conf;
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typedef struct Confmem Confmem;
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typedef struct FPsave FPsave;
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typedef struct PFPU PFPU;
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typedef struct ISAConf ISAConf;
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typedef struct Imap Imap;
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typedef struct Label Label;
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typedef struct Lock Lock;
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typedef struct Mach Mach;
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typedef struct PCArch PCArch;
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typedef struct PMMU PMMU;
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typedef struct Page Page;
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typedef struct Pcidev Pcidev;
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typedef struct Proc Proc;
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typedef struct Sys Sys;
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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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#pragma incomplete Imap
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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 Q_MAGIC
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/*
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* machine dependent definitions used by ../port/dat.h
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*/
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struct Lock
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{
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ulong key; /* semaphore (non-zero = locked) */
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ulong sr;
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ulong pc;
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Proc *p;
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ulong pid;
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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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* This structure must agree with fpsave and fprestore asm routines
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*/
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struct FPsave
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{
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double fpreg[32];
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union {
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double fpscrd;
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struct {
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ulong pad;
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ulong fpscr;
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};
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};
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};
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struct PFPU
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{
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int fpstate;
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FPsave fpsave[1];
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};
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enum
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{
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/* Floating point states */
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FPinit = 0,
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FPactive = 1,
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FPinactive = 2,
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/* Bit that's or-ed in during note handling (FP is illegal in note handlers) */
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FPillegal = 0x100,
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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 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; /* has display? */
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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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};
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/*
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* mmu goo in the Proc structure
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*/
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#define NCOLOR 1
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struct PMMU
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{
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int mmupid;
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Ureg *mmureg; /* pointer to ureg structure */
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};
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#include "../port/portdat.h"
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/*
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* machine dependent definitions not used by ../port/dat.h
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*/
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/*
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* Fake kmap
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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|KZERO)
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#define kunmap(k)
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struct Mach
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{
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/* OFFSETS OF THE FOLLOWING KNOWN BY l.s */
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/*0x00*/ int machno; /* physical id of processor */
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/*0x04*/ ulong splpc; /* pc that called splhi() */
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/*0x08*/ Proc *proc; /* current process on this processor */
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/* Debugging/statistics for software TLB in l.s (therefore, also known by l.s) */
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/*0x0c*/ ulong tlbfault; /* type of last miss */
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/*0x10*/ ulong imiss; /* number of instruction misses */
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/*0x14*/ ulong dmiss; /* number of data misses */
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/* ordering from here on irrelevant */
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PMach;
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Imap* imap;
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uintptr ptabbase; /* start of page table in kernel virtual space */
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int slotgen; /* next pte (byte offset) when pteg is full */
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int mmupid; /* next mmu pid to use */
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int sweepcolor;
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int trigcolor;
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Rendez sweepr;
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int cputype;
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ulong loopconst;
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ulong clkin; /* basic clock frequency */
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ulong vco_out;
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vlong cpuhz;
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ulong bushz;
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ulong dechz;
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ulong tbhz;
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ulong cpmhz; /* communications processor module frequency */
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ulong brghz; /* baud rate generator frequency */
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/* MUST BE LAST */
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uintptr stack[1];
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};
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struct
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{
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char machs[MAXMACH];
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int exiting;
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}active;
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/*
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* a parsed plan9.ini line
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*/
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#define NISAOPT 8
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struct ISAConf {
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char *type;
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ulong port;
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int irq;
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ulong dma;
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ulong mem;
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ulong size;
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ulong freq;
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int nopt;
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char *opt[NISAOPT];
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};
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struct Vctl {
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Vctl* next; /* handlers on this vector */
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char name[KNAMELEN]; /* of driver */
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int isintr; /* interrupt or fault/trap */
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int irq;
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void (*f)(Ureg*, void*); /* handler to call */
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void* a; /* argument to call it with */
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};
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extern Mach mach0;
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extern register Mach *m;
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extern register Proc *up;
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extern FPsave initfp;
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