Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/pc/dat.h
Version:
- FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
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1 typedef struct BIOS32si BIOS32si; 2 typedef struct BIOS32ci BIOS32ci; 3 typedef struct Conf Conf; 4 typedef struct Confmem Confmem; 5 typedef struct FPsave FPsave; 6 typedef struct ISAConf ISAConf; 7 typedef struct Label Label; 8 typedef struct Lock Lock; 9 typedef struct MMU MMU; 10 typedef struct Mach Mach; 11 typedef struct Notsave Notsave; 12 typedef struct PCArch PCArch; 13 typedef struct Pcidev Pcidev; 14 typedef struct PCMmap PCMmap; 15 typedef struct PCMslot PCMslot; 16 typedef struct Page Page; 17 typedef struct PMMU PMMU; 18 typedef struct Proc Proc; 19 typedef struct Segdesc Segdesc; 20 typedef vlong Tval; 21 typedef struct Ureg Ureg; 22 typedef struct Vctl Vctl; 23 24 #pragma incomplete BIOS32si 25 #pragma incomplete Pcidev 26 #pragma incomplete Ureg 27 28 #define MAXSYSARG 5 /* for mount(fd, afd, mpt, flag, arg) */ 29 30 /* 31 * parameters for sysproc.c 32 */ 33 #define AOUT_MAGIC (I_MAGIC) 34 35 struct Lock 36 { 37 ulong key; 38 ulong sr; 39 ulong pc; 40 Proc *p; 41 Mach *m; 42 ushort isilock; 43 long lockcycles; 44 }; 45 46 struct Label 47 { 48 ulong sp; 49 ulong pc; 50 }; 51 52 53 /* 54 * FPsave.status 55 */ 56 enum 57 { 58 /* this is a state */ 59 FPinit= 0, 60 FPactive= 1, 61 FPinactive= 2, 62 63 /* the following is a bit that can be or'd into the state */ 64 FPillegal= 0x100, 65 }; 66 67 struct FPsave 68 { 69 ushort control; 70 ushort r1; 71 ushort status; 72 ushort r2; 73 ushort tag; 74 ushort r3; 75 ulong pc; 76 ushort selector; 77 ushort r4; 78 ulong operand; 79 ushort oselector; 80 ushort r5; 81 uchar regs[80]; /* floating point registers */ 82 }; 83 84 struct Confmem 85 { 86 ulong base; 87 ulong npage; 88 ulong kbase; 89 ulong klimit; 90 }; 91 92 struct Conf 93 { 94 ulong nmach; /* processors */ 95 ulong nproc; /* processes */ 96 ulong monitor; /* has monitor? */ 97 Confmem mem[4]; /* physical memory */ 98 ulong npage; /* total physical pages of memory */ 99 ulong upages; /* user page pool */ 100 ulong nimage; /* number of page cache image headers */ 101 ulong nswap; /* number of swap pages */ 102 int nswppo; /* max # of pageouts per segment pass */ 103 ulong base0; /* base of bank 0 */ 104 ulong base1; /* base of bank 1 */ 105 ulong copymode; /* 0 is copy on write, 1 is copy on reference */ 106 ulong ialloc; /* max interrupt time allocation in bytes */ 107 ulong pipeqsize; /* size in bytes of pipe queues */ 108 int nuart; /* number of uart devices */ 109 }; 110 111 /* 112 * MMU stuff in proc 113 */ 114 #define NCOLOR 1 115 struct PMMU 116 { 117 Page* mmupdb; /* page directory base */ 118 Page* mmufree; /* unused page table pages */ 119 Page* mmuused; /* used page table pages */ 120 Page* kmaptable; /* page table used by kmap */ 121 uint lastkmap; /* last entry used by kmap */ 122 int nkmap; /* number of current kmaps */ 123 }; 124 125 /* 126 * things saved in the Proc structure during a notify 127 */ 128 struct Notsave 129 { 130 ulong svflags; 131 ulong svcs; 132 ulong svss; 133 }; 134 135 #include "../port/portdat.h" 136 137 typedef struct { 138 ulong link; /* link (old TSS selector) */ 139 ulong esp0; /* privilege level 0 stack pointer */ 140 ulong ss0; /* privilege level 0 stack selector */ 141 ulong esp1; /* privilege level 1 stack pointer */ 142 ulong ss1; /* privilege level 1 stack selector */ 143 ulong esp2; /* privilege level 2 stack pointer */ 144 ulong ss2; /* privilege level 2 stack selector */ 145 ulong xcr3; /* page directory base register - not used because we don't use trap gates */ 146 ulong eip; /* instruction pointer */ 147 ulong eflags; /* flags register */ 148 ulong eax; /* general registers */ 149 ulong ecx; 150 ulong edx; 151 ulong ebx; 152 ulong esp; 153 ulong ebp; 154 ulong esi; 155 ulong edi; 156 ulong es; /* segment selectors */ 157 ulong cs; 158 ulong ss; 159 ulong ds; 160 ulong fs; 161 ulong gs; 162 ulong ldt; /* selector for task's LDT */ 163 ulong iomap; /* I/O map base address + T-bit */ 164 } Tss; 165 166 struct Segdesc 167 { 168 ulong d0; 169 ulong d1; 170 }; 171 172 struct Mach 173 { 174 int machno; /* physical id of processor (KNOWN TO ASSEMBLY) */ 175 ulong splpc; /* pc of last caller to splhi */ 176 177 ulong* pdb; /* page directory base for this processor (va) */ 178 Tss* tss; /* tss for this processor */ 179 Segdesc *gdt; /* gdt for this processor */ 180 181 Proc* proc; /* current process on this processor */ 182 Proc* externup; /* extern register Proc *up */ 183 184 Page* pdbpool; 185 int pdbcnt; 186 187 ulong ticks; /* of the clock since boot time */ 188 Label sched; /* scheduler wakeup */ 189 Lock alarmlock; /* access to alarm list */ 190 void* alarm; /* alarms bound to this clock */ 191 int inclockintr; 192 193 Proc* readied; /* for runproc */ 194 ulong schedticks; /* next forced context switch */ 195 196 int tlbfault; 197 int tlbpurge; 198 int pfault; 199 int cs; 200 int syscall; 201 int load; 202 int intr; 203 int flushmmu; /* make current proc flush it's mmu state */ 204 int ilockdepth; 205 Perf perf; /* performance counters */ 206 207 ulong spuriousintr; 208 int lastintr; 209 210 int loopconst; 211 212 Lock apictimerlock; 213 int cpumhz; 214 uvlong cyclefreq; /* Frequency of user readable cycle counter */ 215 uvlong cpuhz; 216 int cpuidax; 217 int cpuiddx; 218 char cpuidid[16]; 219 char* cpuidtype; 220 int havetsc; 221 int havepge; 222 uvlong tscticks; 223 int pdballoc; 224 int pdbfree; 225 226 vlong mtrrcap; 227 vlong mtrrdef; 228 vlong mtrrfix[11]; 229 vlong mtrrvar[32]; /* 256 max. */ 230 231 int stack[1]; 232 }; 233 234 /* 235 * KMap the structure doesn't exist, but the functions do. 236 */ 237 typedef struct KMap KMap; 238 #define VA(k) ((void*)(k)) 239 KMap* kmap(Page*); 240 void kunmap(KMap*); 241 242 struct 243 { 244 Lock; 245 int machs; /* bitmap of active CPUs */ 246 int exiting; /* shutdown */ 247 int ispanic; /* shutdown in response to a panic */ 248 int thunderbirdsarego; /* lets the added processors continue to schedinit */ 249 }active; 250 251 /* 252 * routines for things outside the PC model, like power management 253 */ 254 struct PCArch 255 { 256 char* id; 257 int (*ident)(void); /* this should be in the model */ 258 void (*reset)(void); /* this should be in the model */ 259 int (*serialpower)(int); /* 1 == on, 0 == off */ 260 int (*modempower)(int); /* 1 == on, 0 == off */ 261 262 void (*intrinit)(void); 263 int (*intrenable)(Vctl*); 264 int (*intrvecno)(int); 265 int (*intrdisable)(int); 266 void (*introff)(void); 267 void (*intron)(void); 268 269 void (*clockenable)(void); 270 uvlong (*fastclock)(uvlong*); 271 void (*timerset)(uvlong); 272 }; 273 274 /* cpuid instruction result register bits */ 275 enum { 276 /* dx */ 277 Fpuonchip = 1<<0, 278 // Pse = 1<<3, /* page size extensions */ 279 Tsc = 1<<4, /* time-stamp counter */ 280 Cpumsr = 1<<5, /* model-specific registers, rdmsr/wrmsr */ 281 Pae = 1<<6, /* physical-addr extensions */ 282 Mce = 1<<7, /* machine-check exception */ 283 Cmpxchg8b = 1<<8, 284 Cpuapic = 1<<9, 285 Mtrr = 1<<12, /* memory-type range regs. */ 286 Pge = 1<<13, /* page global extension */ 287 // Pse2 = 1<<17, /* more page size extensions */ 288 Clflush = 1<<19, 289 Mmx = 1<<23, 290 Sse = 1<<25, /* thus sfence instr. */ 291 Sse2 = 1<<26, /* thus mfence & lfence instr.s */ 292 }; 293 294 /* 295 * a parsed plan9.ini line 296 */ 297 #define NISAOPT 8 298 299 struct ISAConf { 300 char *type; 301 ulong port; 302 int irq; 303 ulong dma; 304 ulong mem; 305 ulong size; 306 ulong freq; 307 308 int nopt; 309 char *opt[NISAOPT]; 310 }; 311 312 extern PCArch *arch; /* PC architecture */ 313 314 /* 315 * Each processor sees its own Mach structure at address MACHADDR. 316 * However, the Mach structures must also be available via the per-processor 317 * MMU information array machp, mainly for disambiguation and access to 318 * the clock which is only maintained by the bootstrap processor (0). 319 */ 320 Mach* machp[MAXMACH]; 321 322 #define MACHP(n) (machp[n]) 323 324 extern Mach *m; 325 #define up (((Mach*)MACHADDR)->externup) 326 327 /* 328 * hardware info about a device 329 */ 330 typedef struct { 331 ulong port; 332 int size; 333 } Devport; 334 335 struct DevConf 336 { 337 ulong intnum; /* interrupt number */ 338 char *type; /* card type, malloced */ 339 int nports; /* Number of ports */ 340 Devport *ports; /* The ports themselves */ 341 }; 342 343 typedef struct BIOS32ci { /* BIOS32 Calling Interface */ 344 u32int eax; 345 u32int ebx; 346 u32int ecx; 347 u32int edx; 348 u32int esi; 349 u32int edi; 350 } BIOS32ci;
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