1997/0327/pc/dat.h (diff list | history)

1996/0523/sys/src/9/pc/dat.h:1,5 – 1997/0327/sys/src/9/pc/dat.h:1,7 (short | long | prev | next)
PC architecture cleanup + initial SMP support. Structures: add Irq, Irqctl], Tss; rename PCIcfg to Pcidev; remove PCMmap. Change MACHP to use array of Mach structures; use VM trick for m. Remove unused entries from conf. Add CPU-specific entries to Mach. Add interrupt routines to PCArch. In PMMU, rename mmutop to mmupdb. In active: change machs and exiting from short to int. rsc Fri Mar 4 12:44:25 2005
1991/0612		typedef struct Conf Conf;
1991/0702		typedef struct FPsave FPsave;
1997/0327		typedef struct Irq Irq; typedef struct Irqctl Irqctl;
1993/0915		typedef struct ISAConf ISAConf;
1991/0612		typedef struct Label Label; typedef struct Lock Lock;
1996/0523/sys/src/9/pc/dat.h:7,13 – 1997/0327/sys/src/9/pc/dat.h:9,15
1991/0612		typedef struct Mach Mach;
1993/1013		typedef struct Notsave Notsave;
1992/0923		typedef struct PCArch PCArch;
1995/0517		typedef struct PCIcfg PCIcfg;
1997/0327		typedef struct Pcidev Pcidev;
1995/0225		typedef struct PCMmap PCMmap;
1991/0717		typedef struct Page Page;
1991/0612		typedef struct PMMU PMMU;
1996/0523/sys/src/9/pc/dat.h:14,24 – 1997/0327/sys/src/9/pc/dat.h:16,21
1991/0703		typedef struct Segdesc Segdesc;
1991/0612		typedef struct Ureg Ureg; #define MACHP(n) (n==0? &mach0 : *(Mach**)0)                  extern Mach mach0; extern void (*kprofp)(ulong);                  /* * parameters for sysproc.c */
1996/0523/sys/src/9/pc/dat.h:73,79 – 1997/0327/sys/src/9/pc/dat.h:70,75
1992/0807		ulong monitor; /* has monitor? */
1992/0625		ulong npage0; /* total physical pages of memory */ ulong npage1; /* total physical pages of memory */ ulong topofmem; /* highest physical address + 1 */
1991/0612		ulong npage; /* total physical pages of memory */
1992/0625		ulong upages; /* user page pool */
1991/0711		ulong nimage; /* number of page cache image headers */
1996/0523/sys/src/9/pc/dat.h:81,91 – 1997/0327/sys/src/9/pc/dat.h:77,82
1991/0711		ulong base0; /* base of bank 0 */ ulong base1; /* base of bank 1 */
1991/0702		ulong copymode; /* 0 is copy on write, 1 is copy on reference */
1991/0809		ulong nfloppy; /* number of floppy drives */ ulong nhard; /* number of hard drives */
1992/1105		ulong ldepth; /* screen depth */ ulong maxx; /* screen width */ ulong maxy; /* screen length */
1994/0322		ulong ialloc; /* max interrupt time allocation in bytes */
1994/0503		ulong pipeqsize; /* size in bytes of pipe queues */
1991/0612		};
1996/0523/sys/src/9/pc/dat.h:93,106 – 1997/0327/sys/src/9/pc/dat.h:84,95
1991/0612		/* * MMU stuff in proc */
1991/0717		#define MAXMMU 4
1991/0718		#define MAXSMMU 1
1993/0915		#define NCOLOR 1
1991/0612		struct PMMU {
1991/1004		Page *mmutop; /* 1st level table */ Page *mmufree; /* unused page table pages */ Page *mmuused; /* used page table pages */
1997/0327		Page* mmupdb; /* page directory base */ Page* mmufree; /* unused page table pages */ Page* mmuused; /* used page table pages */
1991/0612		};
1993/1013		/*
1996/0523/sys/src/9/pc/dat.h:115,135 – 1997/0327/sys/src/9/pc/dat.h:104,163
1993/1013
1991/0612		#include "../port/portdat.h" /* * machine dependent definitions not used by ../port/dat.h */
1997/0327		typedef struct { ulong link; /* link (old TSS selector) */ ulong esp0; /* privilege level 0 stack pointer */ ulong ss0; /* privilege level 0 stack selector */ ulong esp1; /* privilege level 1 stack pointer */ ulong ss1; /* privilege level 1 stack selector */ ulong esp2; /* privilege level 2 stack pointer */ ulong ss2; /* privilege level 2 stack selector */ ulong cr3; /* page directory base register */ ulong eip; /* instruction pointer */ ulong eflags; /* flags register */ ulong eax; /* general registers */ ulong ecx; ulong edx; ulong ebx; ulong esp; ulong ebp; ulong esi; ulong edi; ulong es; /* segment selectors */ ulong cs; ulong ss; ulong ds; ulong fs; ulong gs; ulong ldt; /* selector for task's LDT */ ulong iomap; /* I/O map base address + T-bit */ } Tss;
1991/0612
1997/0327		struct Segdesc { ulong d0; ulong d1; };
1991/0612		struct Mach { int machno; /* physical id of processor */ ulong splpc; /* pc of last caller to splhi */ int mmask; /* 1<<m->machno */
1997/0327		void* pdb; /* page directory base for this processor (va) */ Tss* tss; /* tss for this processor */ Segdesc gdt[6]; /* gdt for this processor */ Proc* proc; /* current process on this processor */ Proc* externup; /* extern register Proc *up */ Page* pdbpool; int pdbcnt;
1991/0612		ulong ticks; /* of the clock since boot time */ Proc *proc; /* current process on this processor */ Label sched; /* scheduler wakeup */ Lock alarmlock; /* access to alarm list */ void *alarm; /* alarms bound to this clock */
1994/0728		int nrdy;
1997/0327		void* alarm; /* alarms bound to this clock */
1994/0311
1991/0612		int tlbfault; int tlbpurge;
1996/0523/sys/src/9/pc/dat.h:139,144 – 1997/0327/sys/src/9/pc/dat.h:167,180
1991/1112		int load;
1991/0612		int intr;
1997/0327		int loopconst; int cpumhz; int cpuidax; int cpuiddx; char cpuidid[16]; char* cpuidtype;
1991/0612		int stack[1]; };
1996/0523/sys/src/9/pc/dat.h:150,169 – 1997/0327/sys/src/9/pc/dat.h:186,197
1991/0718		#define kmap(p) (KMap*)((p)->pa|KZERO)
1991/0612		#define kunmap(k)
1991/0703		/* * segment descriptor/gate */ struct Segdesc { ulong d0; ulong d1; };
1991/0612		struct { Lock; short machs; short exiting;
1997/0327		int machs; /* bitmap of active CPUs */ int exiting; /* shutdown */ int ispanic; /* shutdown in response to a panic */
1991/0612		}active;
1992/0923		/*
1996/0523/sys/src/9/pc/dat.h:171,184 – 1997/0327/sys/src/9/pc/dat.h:199,214
1992/0923		*/ struct PCArch { char *id;
1997/0327		char* id; int (*ident)(void); /* this should be in the model */
1992/0923		void (*reset)(void); /* this should be in the model */ int (*cpuspeed)(int); /* 0 = low, 1 = high */ void (*buzz)(int, int); /* make a noise */ void (*lights)(int); /* turn lights or icons on/off */ int (*serialpower)(int); /* 1 == on, 0 == off */ int (*modempower)(int); /* 1 == on, 0 == off */ int (*extvga)(int); /* 1 == external, 0 == internal */
1997/0327		void (*intrinit)(void); int (*intrenable)(int, int, Irqctl*); void (*clockenable)(void);
1992/0923		};
1995/0223		/*
1996/0523/sys/src/9/pc/dat.h:191,219 – 1997/0327/sys/src/9/pc/dat.h:221,249
1993/0915		char type[NAMELEN]; ulong port; ulong irq;
1995/0803		int dma;
1997/0327		ulong dma;
1993/0915		ulong mem; ulong size;
1994/0823		ulong freq;
1993/0915		uchar ea[6];
1995/0920		int nopt; char opt[NISAOPT][ISAOPTLEN];
1993/0915		};
1995/0225
1997/0327		extern PCArch *arch; /* PC architecture */
1995/0225		/* * maps between ISA memory space and PCMCIA card memory space
1997/0327		* 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).
1995/0225		*/ struct PCMmap { ulong ca; /* card address */ ulong cea; /* card end address */ ulong isa; /* ISA address */ int len; /* length of the ISA area */ int attr; /* attribute memory */ int ref; };
1997/0327		Mach* machp[MAXMACH]; #define MACHP(n) (machp[n])
1995/0225
1997/0327		extern Mach *m; #define up (((Mach*)MACHADDR)->externup)
1991/0801
1995/0223		/* * SCSI bus
1996/0523/sys/src/9/pc/dat.h:234,245 – 1997/0327/sys/src/9/pc/dat.h:264,280
1994/0908		}; typedef int (*Scsiio)(Target*, int, uchar*, int, void*, int*);
1993/0915		#define MAXPCMCIA 8 /* maximum number of PCMCIA cards */ #define BOOTLINE ((char *)0x80000100) /* bootline passed by boot program */
1997/0327		typedef struct Irq { void (*f)(Ureg*, void*); /* handler to call */ void* a; /* argument to call it with */
1991/1210
1993/0915		extern PCArch *arch; /* PC architecture */
1993/1013		extern int cpuflag; /* true if this is a CPU */
1997/0327		Irq* next; /* link to next handler */ } Irq;
1992/0918
1993/0915		extern Mach *m; extern Proc *up;
1994/0607		extern char filaddr[];
1997/0327		typedef struct Irqctl { int (*isr)(int); /* get isr bit for this irq */ int (*eoi)(int); /* eoi */ int isintr; Irq* irq; /* handlers on this IRQ */ } Irqctl;