ref: b548687a8ed1d0a159c9d3f3f921d93bbb56908e
dir: /os/pc/dat.h/
typedef struct BIOS32si BIOS32si;
typedef struct BIOS32ci BIOS32ci;
typedef struct Conf Conf;
typedef union FPsave FPsave;
typedef struct FPx87state FPx87state;
typedef struct FPssestate FPssestate;
typedef struct PFPU PFPU;
typedef ulong Instr;
typedef struct ISAConf ISAConf;
typedef struct Label Label;
typedef struct Lock Lock;
typedef struct MMU MMU;
typedef struct Mach Mach;
typedef struct Notsave Notsave;
typedef struct PCArch PCArch;
typedef struct Pcidev Pcidev;
typedef struct PCMmap PCMmap;
typedef struct PCMslot PCMslot;
typedef struct Page Page;
typedef struct PMMU PMMU;
typedef struct Segdesc Segdesc;
typedef struct Tss Tss;
typedef s64 Tval;
typedef struct Ureg Ureg;
typedef struct Vctl Vctl;
#pragma incomplete BIOS32si
#pragma incomplete Pcidev
#pragma incomplete Ureg
#pragma incomplete Vctl
struct Lock
{
u32 key;
u32 sr; /* value returned by splhi() */
uintptr pc; /* lock() caller */
u32 priority;
void *p; /* Proc */
Mach *m;
u16 isilock;
u32 lockcycles;
};
struct Label
{
ulong sp;
ulong pc;
};
struct FPx87state /* x87 fp state */
{
ushort control;
ushort r1;
ushort status;
ushort r2;
ushort tag;
ushort r3;
ulong pc;
ushort selector;
ushort opcode;
ulong operand;
ushort oselector;
ushort r4;
uchar regs[80]; /* floating point registers */
};
struct FPssestate /* SSE fp state */
{
ushort fcw; /* control */
ushort fsw; /* status */
ushort ftw; /* tag */
ushort fop; /* opcode */
ulong fpuip; /* pc */
ushort cs; /* pc segment */
ushort rsrvd1; /* reserved */
ulong fpudp; /* data pointer */
ushort ds; /* data pointer segment */
ushort rsrvd2;
ulong mxcsr; /* MXCSR register state */
ulong mxcsr_mask; /* MXCSR mask register */
uchar xregs[480]; /* extended registers */
};
union FPsave {
FPx87state;
FPssestate;
};
struct PFPU
{
int fpstate;
FPsave *fpsave;
};
enum
{
/* this is a state */
FPinit= 0,
FPactive= 1,
FPinactive= 2,
/* the following is a bit that can be or'd into the state */
FPillegal= 0x100,
};
struct Conf
{
ulong nmach; /* processors */
ulong nproc; /* processes */
ulong monitor; /* has monitor? */
ulong npage0; /* total physical pages of memory */
ulong npage1; /* total physical pages of memory */
ulong npage; /* total physical pages of memory */
ulong base0; /* base of bank 0 */
ulong base1; /* base of bank 1 */
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 */
int nuart; /* number of uart devices */
};
struct Segdesc
{
ulong d0;
ulong d1;
};
/*
* MMU stuff in proc
*/
#define NCOLOR 1
#define NPROCSEG 3 /* number of per process descriptors */
struct PMMU
{
Page* mmupdb; /* page directory base */
Page* mmufree; /* unused page table pages */
Page* mmuused; /* used page table pages */
Page* kmaptable; /* page table used by kmap */
uint lastkmap; /* last entry used by kmap */
int nkmap; /* number of current kmaps */
Segdesc gdt[NPROCSEG]; /* per process descriptors */
Segdesc *ldt; /* local descriptor table */
int nldt; /* number of ldt descriptors allocated */
u32int dr[8]; /* debug registers */
void *vmx;
};
#include "../port/portdat.h"
typedef struct Tss {
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 */
};
struct Mach
{
int machno; /* physical id of processor (KNOWN TO ASSEMBLY) */
ulong splpc; /* pc of last caller to splhi */
ulong* pdb; /* page directory base for this processor (va) */
Tss* tss; /* tss for this processor */
Segdesc *gdt; /* gdt for this processor */
Proc* externup; /* extern register Proc *up */
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 */
int inclockintr;
int nrdy;
int ilockdepth;
int loopconst;
Lock apictimerlock;
int cpumhz;
uvlong cyclefreq; /* Frequency of user readable cycle counter */
uvlong cpuhz;
int cpuidax;
int cpuiddx;
char cpuidid[16];
char* cpuidtype;
int havetsc;
int havepge;
uvlong tscticks;
uvlong tscoff;
int intr;
ulong spuriousintr;
int lastintr;
vlong mtrrcap;
vlong mtrrdef;
vlong mtrrfix[11];
vlong mtrrvar[32]; /* 256 max. */
int stack[1];
};
struct
{
Lock;
int machs; /* bitmap of active CPUs */
int exiting; /* shutdown */
int ispanic; /* shutdown in response to a panic */
int thunderbirdsarego; /* lets the added processors continue to schedinit */
}active;
/*
* routines for things outside the PC model, like power management
*/
struct PCArch
{
char* id;
s32 (*ident)(void); /* this should be in the model */
void (*reset)(void); /* this should be in the model */
s32 (*serialpower)(s32); /* 1 == on, 0 == off */
s32 (*modempower)(s32); /* 1 == on, 0 == off */
void (*intrinit)(void);
s32 (*intrassign)(Vctl*);
s32 (*intrirqno)(s32, s32);
s32 (*intrvecno)(s32);
s32 (*intrspurious)(s32);
void (*introff)(void);
void (*intron)(void);
void (*clockinit)(void);
void (*clockenable)(void);
u64 (*fastclock)(u64*);
void (*timerset)(u64);
};
/*
* a parsed plan9.ini line
*/
#define NISAOPT 8
struct ISAConf {
char *type;
ulong port;
int irq;
ulong dma;
ulong mem;
ulong size;
ulong freq;
int nopt;
char *opt[NISAOPT];
};
extern PCArch *arch; /* PC architecture */
/*
* 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).
*/
Mach* machp[MAXMACH];
#define MACHP(n) (machp[n])
extern Mach *m;
//extern Proc *up;
#define up (((Mach*)MACHADDR)->externup)
extern int swcursor;
/*
* 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 */
};
typedef struct BIOS32ci { /* BIOS32 Calling Interface */
u32 eax;
u32 ebx;
u32 ecx;
u32 edx;
u32 esi;
u32 edi;
} BIOS32ci;