/* * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ typedef struct BIOS32si BIOS32si;typedef struct BIOS32ci BIOS32ci;typedef struct Conf Conf;typedef struct Confmem Confmem;typedef struct FPsave FPsave;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 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) */ /* * Where configuration info is left for the loaded programme. * There are 3584 bytes available at CONFADDR. */#define BOOTLINE ((char*)CONFADDR)#define BOOTLINELEN 64#define BOOTARGS ((char*)(CONFADDR+BOOTLINELEN))#define BOOTARGSLEN (3584-0x200-BOOTLINELEN)#define MAXCONF 100 enum { Promptsecs = 60,}; char *confname[MAXCONF];char *confval[MAXCONF];int nconf; #define KMESGSIZE 64#define PCICONSSIZE 64#define STAGESIZE 64 #define NAMELEN 28 #define GSHORT(p) (((p)[1]<<8)|(p)[0])#define GLSHORT(p) (((p)[0]<<8)|(p)[1]) #define GLONG(p) ((GSHORT(p+2)<<16)|GSHORT(p))#define GLLONG(p) (((ulong)GLSHORT(p)<<16)|GLSHORT(p+2))#define PLLONG(p,v) (p)[3]=(v);(p)[2]=(v)>>8;(p)[1]=(v)>>16;(p)[0]=(v)>>24 #define PLVLONG(p,v) (p)[7]=(v);(p)[6]=(v)>>8;(p)[5]=(v)>>16;(p)[4]=(v)>>24;\ (p)[3]=(v)>>32; (p)[2]=(v)>>40;\ (p)[1]=(v)>>48; (p)[0]=(v)>>56; enum { Stkpat = 0,}; /* * parameters for sysproc.c */#define AOUT_MAGIC (I_MAGIC) struct Lock{ ulong magic; ulong key; ulong sr; ulong pc; Proc *p; Mach *m; ushort isilock; long lockcycles;}; struct Label{ ulong sp; ulong pc;}; /* * FPsave.status */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 FPsave{ ushort control; ushort r1; ushort status; ushort r2; ushort tag; ushort r3; ulong pc; ushort selector; ushort r4; ulong operand; ushort oselector; ushort r5; uchar regs[80]; /* floating point registers */}; 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 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 */}; /* * MMU stuff in proc */#define NCOLOR 1struct 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 */}; /* * things saved in the Proc structure during a notify */struct Notsave{ ulong svflags; ulong svcs; ulong svss;}; #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 Segdesc{ ulong d0; ulong d1;}; 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; 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; int pdballoc; int pdbfree; vlong mtrrcap; vlong mtrrdef; vlong mtrrfix[11]; vlong mtrrvar[32]; /* 256 max. */ 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*); 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 */ int rebooting; /* just idle cpus > 0 */}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); void (*resetothers)(void); /* put other cpus into reset */}; /* cpuid instruction result register bits */enum { /* dx */ Fpuonchip = 1<<0, 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 */ Pse2 = 1<<17, /* more page size extensions */ Clflush = 1<<19, Mmx = 1<<23, Fxsr = 1<<24, /* have SSE FXSAVE/FXRSTOR */ Sse = 1<<25, /* thus sfence instr. */ Sse2 = 1<<26, /* thus mfence & lfence instr.s */}; /* * 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;#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; /* misc. */extern int v_flag; /* APM goo */typedef struct Apminfo { int haveinfo; int ax; int cx; int dx; int di; int ebx; int esi;} Apminfo;extern Apminfo apm; /* * Multiboot grot. */typedef struct Mbi Mbi;struct Mbi { u32int flags; u32int memlower; u32int memupper; u32int bootdevice; u32int cmdline; u32int modscount; u32int modsaddr; u32int syms[4]; u32int mmaplength; u32int mmapaddr; u32int driveslength; u32int drivesaddr; u32int configtable; u32int bootloadername; u32int apmtable; u32int vbe[6];}; enum { /* flags */ Fmem = 0x00000001, /* mem* valid */ Fbootdevice = 0x00000002, /* bootdevice valid */ Fcmdline = 0x00000004, /* cmdline valid */ Fmods = 0x00000008, /* mod* valid */ Fsyms = 0x00000010, /* syms[] has a.out info */ Felf = 0x00000020, /* syms[] has ELF info */ Fmmap = 0x00000040, /* mmap* valid */ Fdrives = 0x00000080, /* drives* valid */ Fconfigtable = 0x00000100, /* configtable* valid */ Fbootloadername = 0x00000200, /* bootloadername* valid */ Fapmtable = 0x00000400, /* apmtable* valid */ Fvbe = 0x00000800, /* vbe[] valid */}; typedef struct Mod Mod;struct Mod { u32int modstart; u32int modend; u32int string; u32int reserved;}; typedef struct MMap MMap;struct MMap { u32int size; u32int base[2]; u32int length[2]; u32int type;}; MMap mmap[32+1];int nmmap; Mbi *multibootheader; enum { Maxfile = 4096,}; /* from 9load */ enum { /* returned by bootpass */ MORE, ENOUGH, FAIL};enum { INITKERNEL, READEXEC, READ9TEXT, READ9DATA, READGZIP, READEHDR, /* elf states ... */ READPHDR, READEPAD, READEDATA, /* through here */ READE64HDR, /* elf64 states ... */ READ64PHDR, READE64PAD,Lines 1–500 of 554. 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/* * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ typedef struct BIOS32si BIOS32si; typedef struct BIOS32ci BIOS32ci; typedef struct Conf Conf; typedef struct Confmem Confmem; typedef struct FPsave FPsave; 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 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) */ /* * Where configuration info is left for the loaded programme. * There are 3584 bytes available at CONFADDR. */ #define BOOTLINE ((char*)CONFADDR) #define BOOTLINELEN 64 #define BOOTARGS ((char*)(CONFADDR+BOOTLINELEN)) #define BOOTARGSLEN (3584-0x200-BOOTLINELEN) #define MAXCONF 100 enum { Promptsecs = 60, }; char *confname[MAXCONF]; char *confval[MAXCONF]; int nconf; #define KMESGSIZE 64 #define PCICONSSIZE 64 #define STAGESIZE 64 #define NAMELEN 28 #define GSHORT(p) (((p)[1]<<8)|(p)[0]) #define GLSHORT(p) (((p)[0]<<8)|(p)[1]) #define GLONG(p) ((GSHORT(p+2)<<16)|GSHORT(p)) #define GLLONG(p) (((ulong)GLSHORT(p)<<16)|GLSHORT(p+2)) #define PLLONG(p,v) (p)[3]=(v);(p)[2]=(v)>>8;(p)[1]=(v)>>16;(p)[0]=(v)>>24 #define PLVLONG(p,v) (p)[7]=(v);(p)[6]=(v)>>8;(p)[5]=(v)>>16;(p)[4]=(v)>>24;\ (p)[3]=(v)>>32; (p)[2]=(v)>>40;\ (p)[1]=(v)>>48; (p)[0]=(v)>>56; enum { Stkpat = 0, }; /* * parameters for sysproc.c */ #define AOUT_MAGIC (I_MAGIC) struct Lock { ulong magic; ulong key; ulong sr; ulong pc; Proc *p; Mach *m; ushort isilock; long lockcycles; }; struct Label { ulong sp; ulong pc; }; /* * FPsave.status */ 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 FPsave { ushort control; ushort r1; ushort status; ushort r2; ushort tag; ushort r3; ulong pc; ushort selector; ushort r4; ulong operand; ushort oselector; ushort r5; uchar regs[80]; /* floating point registers */ }; 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 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 */ }; /* * 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 */ }; /* * things saved in the Proc structure during a notify */ struct Notsave { ulong svflags; ulong svcs; ulong svss; }; #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 Segdesc { ulong d0; ulong d1; }; 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; 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; int pdballoc; int pdbfree; vlong mtrrcap; vlong mtrrdef; vlong mtrrfix[11]; vlong mtrrvar[32]; /* 256 max. */ 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*); 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 */ int rebooting; /* just idle cpus > 0 */ }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); void (*resetothers)(void); /* put other cpus into reset */ }; /* cpuid instruction result register bits */ enum { /* dx */ Fpuonchip = 1<<0, 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 */ Pse2 = 1<<17, /* more page size extensions */ Clflush = 1<<19, Mmx = 1<<23, Fxsr = 1<<24, /* have SSE FXSAVE/FXRSTOR */ Sse = 1<<25, /* thus sfence instr. */ Sse2 = 1<<26, /* thus mfence & lfence instr.s */ }; /* * 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; #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; /* misc. */ extern int v_flag; /* APM goo */ typedef struct Apminfo { int haveinfo; int ax; int cx; int dx; int di; int ebx; int esi; } Apminfo; extern Apminfo apm; /* * Multiboot grot. */ typedef struct Mbi Mbi; struct Mbi { u32int flags; u32int memlower; u32int memupper; u32int bootdevice; u32int cmdline; u32int modscount; u32int modsaddr; u32int syms[4]; u32int mmaplength; u32int mmapaddr; u32int driveslength; u32int drivesaddr; u32int configtable; u32int bootloadername; u32int apmtable; u32int vbe[6]; }; enum { /* flags */ Fmem = 0x00000001, /* mem* valid */ Fbootdevice = 0x00000002, /* bootdevice valid */ Fcmdline = 0x00000004, /* cmdline valid */ Fmods = 0x00000008, /* mod* valid */ Fsyms = 0x00000010, /* syms[] has a.out info */ Felf = 0x00000020, /* syms[] has ELF info */ Fmmap = 0x00000040, /* mmap* valid */ Fdrives = 0x00000080, /* drives* valid */ Fconfigtable = 0x00000100, /* configtable* valid */ Fbootloadername = 0x00000200, /* bootloadername* valid */ Fapmtable = 0x00000400, /* apmtable* valid */ Fvbe = 0x00000800, /* vbe[] valid */ }; typedef struct Mod Mod; struct Mod { u32int modstart; u32int modend; u32int string; u32int reserved; }; typedef struct MMap MMap; struct MMap { u32int size; u32int base[2]; u32int length[2]; u32int type; }; MMap mmap[32+1]; int nmmap; Mbi *multibootheader; enum { Maxfile = 4096, }; /* from 9load */ enum { /* returned by bootpass */ MORE, ENOUGH, FAIL }; enum { INITKERNEL, READEXEC, READ9TEXT, READ9DATA, READGZIP, READEHDR, /* elf states ... */ READPHDR, READEPAD, READEDATA, /* through here */ READE64HDR, /* elf64 states ... */ READ64PHDR, READE64PAD,