ref: 03499e53ccf8391c5b5d4b9eca096abe5e9312c3
dir: /sys/src/9/pc/dat.h/
typedef struct BIOS32si BIOS32si;
typedef struct BIOS32ci BIOS32ci;
typedef struct Conf Conf;
typedef struct Confmem Confmem;
typedef union FPsave FPsave;
typedef struct FPx87state FPx87state;
typedef struct FPssestate FPssestate;
typedef struct PFPU PFPU;
typedef struct ISAConf ISAConf;
typedef struct Label Label;
typedef struct Lock Lock;
typedef struct MMU MMU;
typedef struct Mach Mach;
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 Proc Proc;
typedef struct Segdesc Segdesc;
typedef vlong Tval;
typedef struct Ureg Ureg;
typedef struct Vctl Vctl;
#pragma incomplete BIOS32si
#pragma incomplete Pcidev
#pragma incomplete Ureg
#define MAXSYSARG 5 /* for mount(fd, afd, mpt, flag, arg) */
/*
* parameters for sysproc.c
*/
#define AOUT_MAGIC (I_MAGIC)
struct Lock
{
ulong key;
ulong sr;
uintptr pc;
Proc *p;
Mach *m;
ushort isilock;
long 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 Confmem
{
ulong base;
ulong npage;
ulong kbase;
ulong klimit;
};
struct Conf
{
ulong nmach; /* processors */
ulong nproc; /* processes */
ulong monitor; /* has monitor? */
Confmem mem[4]; /* physical memory */
ulong npage; /* total physical pages of memory */
ulong upages; /* user page pool */
ulong nimage; /* number of page cache image headers */
ulong nswap; /* number of swap pages */
int nswppo; /* max # of pageouts per segment pass */
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
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 {
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 xcr3; /* page directory base register - not used because we don't use trap gates */
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;
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* proc; /* current process on this processor */
Proc* externup; /* extern register Proc *up */
Page* pdbpool;
int pdbcnt;
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 */
int tlbfault;
int tlbpurge;
int pfault;
int cs;
int syscall;
int load;
int intr;
int flushmmu; /* make current proc flush it's mmu state */
int ilockdepth;
Perf perf; /* performance counters */
ulong spuriousintr;
int lastintr;
int loopconst;
int cpumhz;
uvlong cyclefreq; /* Frequency of user readable cycle counter */
uvlong cpuhz;
int cpuidax;
int cpuidcx;
int cpuiddx;
char cpuidid[16];
char* cpuidtype;
uchar cpuidfamily;
uchar cpuidmodel;
uchar cpuidstepping;
int havetsc;
int havepge;
int havewatchpt8;
int havenx;
uvlong tscticks;
int pdballoc;
int pdbfree;
u32int dr7; /* shadow copy of dr7 */
void* vmx;
int stack[1];
};
/*
* KMap the structure doesn't exist, but the functions do.
*/
typedef struct KMap KMap;
#define VA(k) ((void*)(k))
KMap* kmap(Page*);
void kunmap(KMap*);
extern u32int MemMin;
struct
{
char machs[MAXMACH]; /* active CPUs */
int exiting; /* shutdown */
}active;
/*
* routines for things outside the PC model, like power management
*/
struct PCArch
{
char* id;
int (*ident)(void); /* this should be in the model */
void (*reset)(void); /* this should be in the model */
int (*serialpower)(int); /* 1 == on, 0 == off */
int (*modempower)(int); /* 1 == on, 0 == off */
void (*intrinit)(void);
int (*intrenable)(Vctl*);
int (*intrvecno)(int);
int (*intrdisable)(int);
void (*introff)(void);
void (*intron)(void);
void (*clockenable)(void);
uvlong (*fastclock)(uvlong*);
void (*timerset)(uvlong);
};
/* cpuid instruction result register bits */
enum {
/* cx */
Monitor = 1<<3,
/* dx */
Fpuonchip = 1<<0,
Vmex = 1<<1, /* virtual-mode extensions */
Pse = 1<<3, /* page size extensions */
Tsc = 1<<4, /* time-stamp counter */
Cpumsr = 1<<5, /* model-specific registers, rdmsr/wrmsr */
Pae = 1<<6, /* physical-addr extensions */
Mce = 1<<7, /* machine-check exception */
Cmpxchg8b = 1<<8,
Cpuapic = 1<<9,
Mtrr = 1<<12, /* memory-type range regs. */
Pge = 1<<13, /* page global extension */
Mca = 1<<14, /* machine-check architecture */
Pat = 1<<16, /* page attribute table */
Pse2 = 1<<17, /* more page size extensions */
Clflush = 1<<19,
Acpif = 1<<22, /* therm control msr */
Mmx = 1<<23,
Fxsr = 1<<24, /* have SSE FXSAVE/FXRSTOR */
Sse = 1<<25, /* thus sfence instr. */
Sse2 = 1<<26, /* thus mfence & lfence instr.s */
Rdrnd = 1<<30, /* RDRAND support bit */
};
/* model-specific registers, for compatibility with pc64 code */
enum {
Efer = 0xc0000080, /* Extended Feature Enable */
Star = 0xc0000081, /* Legacy Target IP and [CS]S */
Lstar = 0xc0000082, /* Long Mode Target IP */
Cstar = 0xc0000083, /* Compatibility Target IP */
Sfmask = 0xc0000084, /* SYSCALL Flags Mask */
FSbase = 0xc0000100, /* 64-bit FS Base Address */
GSbase = 0xc0000101, /* 64-bit GS Base Address */
KernelGSbase = 0xc0000102, /* SWAPGS instruction */
};
/*
* a parsed plan9.ini line
*/
#define NISAOPT 8
struct ISAConf {
char *type;
uvlong 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;
#define up (((Mach*)MACHADDR)->externup)
/*
* 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 */
u32int eax;
u32int ebx;
u32int ecx;
u32int edx;
u32int esi;
u32int edi;
} BIOS32ci;