ref: 83246e296ea433b65b9d295b5e08fedd39ff1ab7
dir: /os/pc64/dat.h/
typedef struct BIOS32si BIOS32si;
typedef struct BIOS32ci BIOS32ci;
typedef struct Conf Conf;
typedef struct Confmem Confmem;
typedef struct FPssestate FPssestate;
typedef struct FPavxstate FPavxstate;
typedef struct FPsave FPsave;
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;
uintptr pc;
u32 pri;
};
struct Label
{
uintptr sp;
uintptr pc;
};
struct FPssestate
{
u16int fcw; /* x87 control word */
u16int fsw; /* x87 status word */
u8int ftw; /* x87 tag word */
u8int zero; /* 0 */
u16int fop; /* last x87 opcode */
u64int rip; /* last x87 instruction pointer */
u64int rdp; /* last x87 data pointer */
u32 mxcsr; /* MMX control and status */
u32 mxcsrmask; /* supported MMX feature bits */
uchar st[128]; /* shared 64-bit media and x87 regs */
uchar xmm[256]; /* 128-bit media regs */
uchar ign[96]; /* reserved, ignored */
};
struct FPavxstate
{
FPssestate;
uchar header[64]; /* XSAVE header */
uchar ymm[256]; /* upper 128-bit regs (AVX) */
};
struct FPsave
{
FPavxstate;
};
enum
{
/* this is a state */
FPinit= 0,
FPactive= 1,
FPinactive= 2,
/*
* the following are bits that can be or'd into the state.
*
* this is biased so that FPinit, FPactive and FPinactive
* without any flags refer to user fp state in fpslot[0].
*/
FPillegal= 1<<8, /* fp forbidden in note handler */
FPpush= 2<<8, /* trap on use and initialize new fpslot */
FPnouser= 4<<8, /* fpslot[0] is kernel regs */
FPkernel= 8<<8, /* fp use in kernel (user in fpslot[0] when !FPnouser) */
FPindexs= 16,
FPindex1= 1<<FPindexs,
FPindexm= 3<<FPindexs,
};
struct PFPU
{
int fpstate;
FPsave *fpsave; /* fpslot[fpstate>>FPindexs] */
FPsave *fpslot[(FPindexm+1)>>FPindexs];
};
struct Confmem
{
uintptr base;
u32 npage;
};
struct Conf
{
u32 nmach; /* processors */
u32 nproc; /* processes */
u32 monitor; /* has monitor? */
Confmem mem[16]; /* physical memory */
u32 npage; /* total physical pages of memory */
u32 nswap; /* number of swap pages */
u32 copymode; /* 0 is copy on write, 1 is copy on reference */
u32 ialloc; /* max interrupt time allocation in bytes */
u32 pipeqsize; /* size in bytes of pipe queues */
u32 nuart; /* number of uart devices */
};
struct Segdesc
{
u32 d0;
u32 d1;
};
/*
* MMU structure for PDP, PD, PT pages.
*/
struct MMU
{
MMU *next;
uintptr *page;
int index;
int level;
};
/*
* MMU stuff in proc
*/
#define NCOLOR 1
struct PMMU
{
MMU* mmuhead;
MMU* mmutail;
MMU* kmaphead;
MMU* kmaptail;
ulong kmapcount;
ulong kmapindex;
ulong mmucount;
u64int dr[8];
void *vmx;
};
#include "../port/portdat.h"
struct Tss {
u32 _0_;
u32 rsp0[2];
u32 rsp1[2];
u32 rsp2[2];
u32 _28_[2];
u32 ist[14];
u16 _92_[5];
u16 iomap;
};
struct Mach
{
u32 machno; /* physical id of processor (KNOWN TO ASSEMBLY) */
uintptr splpc; /* pc of last caller to splhi */
u64* pml4; /* pml4 base for this processor (va) */
Tss* tss; /* tss for this processor */
Segdesc *gdt; /* gdt for this processor */
Proc* externup; /* extern register Proc *up */
u64 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 */
u32 inclockintr;
u32 nrdy;
u32 ilockdepth;
Perf perf; /* performance counters */
u32 loopconst;
int aalcycles;
Lock apictimerlock;
u32 cpumhz;
u64 cyclefreq; /* Frequency of user readable cycle counter */
u64 cpuhz;
u32 cpuidax;
u32 cpuidcx;
u32 cpuiddx;
char cpuidid[16];
char* cpuidtype;
uchar cpuidfamily;
uchar cpuidmodel;
uchar cpuidstepping;
u32 havetsc;
u32 havepge;
int havewatchpt8;
int havenx;
u64 tscticks;
u64 tscoff;
u32 intr;
u32 spuriousintr;
u32 lastintr;
u64 dr7; /* shadow copy of dr7 */
u64 xcr0;
s64 mtrrcap;
s64 mtrrdef;
s64 mtrrfix[11];
s64 mtrrvar[32]; /* 256 max. */
uintptr stack[1];
};
extern u64 MemMin;
struct
{
Lock;
char machs[MAXMACH]; /* bitmap of active CPUs */
s32 exiting; /* shutdown */
s32 ispanic; /* shutdown in response to a panic */
s32 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 (*intrspurious)(s32);
s32 (*intrenable)(Vctl*);
s32 (*intrvecno)(s32);
s32 (*intrdisable)(s32);
void (*clockinit)(void);
void (*clockenable)(void);
u64 (*fastclock)(u64*);
void (*timerset)(u64);
};
/* cpuid instruction result register bits */
enum {
/* ax */
Xsaveopt = 1<<0,
Xsaves = 1<<3,
/* cx */
Monitor = 1<<3,
Xsave = 1<<26,
Avx = 1<<28,
/* 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 */
};
enum { /* MSRs */
PerfEvtbase = 0xc0010000, /* Performance Event Select */
PerfCtrbase = 0xc0010004, /* Performance Counters */
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;
u32 port;
s32 irq;
u32 dma;
u32 mem;
u32 size;
u32 freq;
s32 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 register Mach* m; /* R15 */
extern register Proc* up; /* R14 */
extern s32 swcursor;
/*
* hardware info about a device
*/
typedef struct {
u32 port;
s32 size;
} Devport;
struct DevConf
{
u32 intnum; /* interrupt number */
char *type; /* card type, malloced */
s32 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;