![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to exception.h CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Apple XNU] / XNU / osfmk / ppc|
Return to exception.h CVS log | Up to [Apple XNU] / XNU / osfmk / ppc |
1.1 ! root 1: /* ! 2: * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. ! 3: * ! 4: * @APPLE_LICENSE_HEADER_START@ ! 5: * ! 6: * The contents of this file constitute Original Code as defined in and ! 7: * are subject to the Apple Public Source License Version 1.1 (the ! 8: * "License"). You may not use this file except in compliance with the ! 9: * License. Please obtain a copy of the License at ! 10: * http://www.apple.com/publicsource and read it before using this file. ! 11: * ! 12: * This Original Code and all software distributed under the License are ! 13: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER ! 14: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, ! 15: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, ! 16: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the ! 17: * License for the specific language governing rights and limitations ! 18: * under the License. ! 19: * ! 20: * @APPLE_LICENSE_HEADER_END@ ! 21: */ ! 22: /* ! 23: * @OSF_COPYRIGHT@ ! 24: */ ! 25: ! 26: /* Miscellaneous constants and structures used by the exception ! 27: * handlers ! 28: */ ! 29: ! 30: #ifndef _PPC_EXCEPTION_H_ ! 31: #define _PPC_EXCEPTION_H_ ! 32: ! 33: #ifndef ASSEMBLER ! 34: ! 35: #include <cpus.h> ! 36: #include <mach_kdb.h> ! 37: #include <mach_kdp.h> ! 38: ! 39: #include <mach/machine/vm_types.h> ! 40: #include <mach/boolean.h> ! 41: #include <pexpert/pexpert.h> ! 42: #include <IOKit/IOInterrupts.h> ! 43: ! 44: /* When an exception is taken, this info is accessed via sprg0 */ ! 45: /* We should always have this one on a cache line boundary */ ! 46: struct per_proc_info { ! 47: unsigned short cpu_number; ! 48: unsigned short cpu_flags; /* Various low-level flags */ ! 49: vm_offset_t istackptr; ! 50: vm_offset_t intstack_top_ss; ! 51: ! 52: #if MACH_KDP || MACH_KDB ! 53: vm_offset_t debstackptr; ! 54: vm_offset_t debstack_top_ss; ! 55: #else ! 56: unsigned int ppigas1[2]; /* Take up some space if no KDP or KDB */ ! 57: #endif ! 58: ! 59: unsigned int tempwork1; /* Temp work area - monitor use carefully */ ! 60: unsigned int CPUflags; /* Temporary CPU flags */ ! 61: unsigned int userspace; /* Last loaded user memory space ID */ ! 62: ! 63: /* PPC cache line boundary here - 020 */ ! 64: ! 65: unsigned int save_exception_type; ! 66: unsigned int phys_exception_handlers; ! 67: unsigned int virt_per_proc_info; /* virt addr for our CPU */ ! 68: unsigned int active_kloaded; /* pointer to active_kloaded[CPU_NO] */ ! 69: unsigned int cpu_data; /* pointer to cpu_data[CPU_NO] */ ! 70: unsigned int active_stacks; /* pointer to active_stacks[CPU_NO] */ ! 71: unsigned int need_ast; /* pointer to need_ast[CPU_NO] */ ! 72: unsigned int FPU_thread; /* Thread owning the FPU on this cpu */ ! 73: ! 74: /* PPC cache line boundary here - 040 */ ! 75: unsigned int VMX_thread; /* Thread owning the VMX on this cpu */ ! 76: unsigned int quickfret; /* Pointer to savearea for exception exit to free */ ! 77: unsigned int BlueBoxDesc; /* Pointer to Blue Box description area */ ! 78: unsigned int LastSpace; /* Last user space loaded into segment registers */ ! 79: unsigned int Uassist; /* User Assist Word */ ! 80: unsigned int liveVRSave; /* VRSave assiciated with live vector registers */ ! 81: unsigned int spcFlags; /* Special thread flags */ ! 82: unsigned int ppigas2; ! 83: ! 84: /* PPC cache line boundary here - 060 */ ! 85: boolean_t (*set_interrupts_enabled)(boolean_t); ! 86: boolean_t (*get_interrupts_enabled)(void); ! 87: IOInterruptHandler interrupt_handler; ! 88: void * interrupt_nub; ! 89: unsigned int interrupt_source; ! 90: void * interrupt_target; ! 91: void * interrupt_refCon; ! 92: unsigned int ppigas3; ! 93: ! 94: /* PPC cache line boundary here - 080 */ ! 95: unsigned int MPsigpStat; /* Signal Processor status (interlocked update for this one) */ ! 96: #define MPsigpMsgp 0xC0000000 /* Message pending (busy + pass) */ ! 97: #define MPsigpBusy 0x80000000 /* Processor area busy, i.e., locked */ ! 98: #define MPsigpPass 0x40000000 /* Busy lock passed to receiving processor */ ! 99: #define MPsigpSrc 0x000000FF /* Processor that owns busy, i.e., the ID of */ ! 100: /* whomever set busy. When a busy is passed, */ ! 101: /* this is the requestor of the function. */ ! 102: #define MPsigpFunc 0x0000FF00 /* Current function */ ! 103: #define MPsigpIdle 0x00 /* No function pending */ ! 104: #define MPsigpSigp 0x04 /* Signal a processor */ ! 105: #define SIGPast 0 /* Requests an ast on target processor */ ! 106: #define SIGPdebug 2 /* Requests a debugger entry */ ! 107: #define SIGPwake 3 /* Wake up a sleeping processor */ ! 108: unsigned int MPsigpParm0; /* SIGP parm 0 */ ! 109: unsigned int MPsigpParm1; /* SIGP parm 1 */ ! 110: unsigned int MPsigpParm2; /* SIGP parm 2 */ ! 111: cpu_id_t cpu_id; ! 112: vm_offset_t start_paddr; ! 113: unsigned int ppigas4[2]; ! 114: ! 115: /* PPC cache line boundary here - 0A0 */ ! 116: double emfp0; /* Copies of floating point registers */ ! 117: double emfp1; /* Used for emulation purposes */ ! 118: double emfp2; ! 119: double emfp3; ! 120: ! 121: double emfp4; ! 122: double emfp5; ! 123: double emfp6; ! 124: double emfp7; ! 125: ! 126: double emfp8; ! 127: double emfp9; ! 128: double emfp10; ! 129: double emfp11; ! 130: ! 131: double emfp12; ! 132: double emfp13; ! 133: double emfp14; ! 134: double emfp15; ! 135: ! 136: double emfp16; ! 137: double emfp17; ! 138: double emfp18; ! 139: double emfp19; ! 140: ! 141: double emfp20; ! 142: double emfp21; ! 143: double emfp22; ! 144: double emfp23; ! 145: ! 146: double emfp24; ! 147: double emfp25; ! 148: double emfp26; ! 149: double emfp27; ! 150: ! 151: double emfp28; ! 152: double emfp29; ! 153: double emfp30; ! 154: double emfp31; ! 155: ! 156: /* - 1A0 */ ! 157: unsigned int emfpscr_pad; ! 158: unsigned int emfpscr; ! 159: unsigned int empadfp[6]; ! 160: ! 161: /* - 1C0 */ ! 162: unsigned int emvr0[4]; /* Copies of vector registers used both */ ! 163: unsigned int emvr1[4]; /* for full vector emulation or */ ! 164: unsigned int emvr2[4]; /* as saveareas while assisting denorms */ ! 165: unsigned int emvr3[4]; ! 166: unsigned int emvr4[4]; ! 167: unsigned int emvr5[4]; ! 168: unsigned int emvr6[4]; ! 169: unsigned int emvr7[4]; ! 170: unsigned int emvr8[4]; ! 171: unsigned int emvr9[4]; ! 172: unsigned int emvr10[4]; ! 173: unsigned int emvr11[4]; ! 174: unsigned int emvr12[4]; ! 175: unsigned int emvr13[4]; ! 176: unsigned int emvr14[4]; ! 177: unsigned int emvr15[4]; ! 178: unsigned int emvr16[4]; ! 179: unsigned int emvr17[4]; ! 180: unsigned int emvr18[4]; ! 181: unsigned int emvr19[4]; ! 182: unsigned int emvr20[4]; ! 183: unsigned int emvr21[4]; ! 184: unsigned int emvr22[4]; ! 185: unsigned int emvr23[4]; ! 186: unsigned int emvr24[4]; ! 187: unsigned int emvr25[4]; ! 188: unsigned int emvr26[4]; ! 189: unsigned int emvr27[4]; ! 190: unsigned int emvr28[4]; ! 191: unsigned int emvr29[4]; ! 192: unsigned int emvr30[4]; ! 193: unsigned int emvr31[4]; ! 194: unsigned int emvscr[4]; ! 195: unsigned int empadvr[4]; ! 196: /* - 3E0 */ ! 197: ! 198: }; ! 199: ! 200: ! 201: extern struct per_proc_info *per_proc_info; ! 202: /* extern struct per_proc_info per_proc_info[NCPUS]; */ ! 203: ! 204: typedef struct savearea { ! 205: ! 206: /* The following area corresponds to ppc_saved_state and ppc_thread_state */ ! 207: ! 208: /* offset 0x0000 */ ! 209: unsigned int save_srr0; ! 210: unsigned int save_srr1; ! 211: unsigned int save_r0; ! 212: unsigned int save_r1; ! 213: unsigned int save_r2; ! 214: unsigned int save_r3; ! 215: unsigned int save_r4; ! 216: unsigned int save_r5; ! 217: ! 218: unsigned int save_r6; ! 219: unsigned int save_r7; ! 220: unsigned int save_r8; ! 221: unsigned int save_r9; ! 222: unsigned int save_r10; ! 223: unsigned int save_r11; ! 224: unsigned int save_r12; ! 225: unsigned int save_r13; ! 226: ! 227: unsigned int save_r14; ! 228: unsigned int save_r15; ! 229: unsigned int save_r16; ! 230: unsigned int save_r17; ! 231: unsigned int save_r18; ! 232: unsigned int save_r19; ! 233: unsigned int save_r20; ! 234: unsigned int save_r21; ! 235: ! 236: unsigned int save_r22; ! 237: unsigned int save_r23; ! 238: unsigned int save_r24; ! 239: unsigned int save_r25; ! 240: unsigned int save_r26; ! 241: unsigned int save_r27; ! 242: unsigned int save_r28; ! 243: unsigned int save_r29; ! 244: ! 245: unsigned int save_r30; ! 246: unsigned int save_r31; ! 247: unsigned int save_cr; ! 248: unsigned int save_xer; ! 249: unsigned int save_lr; ! 250: unsigned int save_ctr; ! 251: unsigned int save_mq; ! 252: unsigned int save_vrsave; ! 253: ! 254: unsigned int save_sr_copyin; ! 255: unsigned int save_space; ! 256: unsigned int save_pad2[6]; ! 257: ! 258: ! 259: /* The following corresponds to ppc_exception_state */ ! 260: ! 261: /* offset 0x00C0 */ ! 262: unsigned int save_dar; ! 263: unsigned int save_dsisr; ! 264: unsigned int save_exception; ! 265: unsigned int save_pad3[5]; ! 266: ! 267: /* The following corresponds to ppc_float_state */ ! 268: ! 269: /* offset 0x00E0 */ ! 270: double save_fp0; ! 271: double save_fp1; ! 272: double save_fp2; ! 273: double save_fp3; ! 274: ! 275: double save_fp4; ! 276: double save_fp5; ! 277: double save_fp6; ! 278: double save_fp7; ! 279: ! 280: double save_fp8; ! 281: double save_fp9; ! 282: double save_fp10; ! 283: double save_fp11; ! 284: ! 285: double save_fp12; ! 286: double save_fp13; ! 287: double save_fp14; ! 288: double save_fp15; ! 289: ! 290: double save_fp16; ! 291: double save_fp17; ! 292: double save_fp18; ! 293: double save_fp19; ! 294: ! 295: double save_fp20; ! 296: double save_fp21; ! 297: double save_fp22; ! 298: double save_fp23; ! 299: ! 300: double save_fp24; ! 301: double save_fp25; ! 302: double save_fp26; ! 303: double save_fp27; ! 304: ! 305: double save_fp28; ! 306: double save_fp29; ! 307: double save_fp30; ! 308: double save_fp31; ! 309: ! 310: unsigned int save_fpscr_pad; ! 311: unsigned int save_fpscr; ! 312: unsigned int save_pad4[6]; ! 313: ! 314: /* The following is the save area for the VMX registers */ ! 315: ! 316: /* offset 0x0200 */ ! 317: unsigned int save_vr0[4]; ! 318: unsigned int save_vr1[4]; ! 319: unsigned int save_vr2[4]; ! 320: unsigned int save_vr3[4]; ! 321: unsigned int save_vr4[4]; ! 322: unsigned int save_vr5[4]; ! 323: unsigned int save_vr6[4]; ! 324: unsigned int save_vr7[4]; ! 325: unsigned int save_vr8[4]; ! 326: unsigned int save_vr9[4]; ! 327: unsigned int save_vr10[4]; ! 328: unsigned int save_vr11[4]; ! 329: unsigned int save_vr12[4]; ! 330: unsigned int save_vr13[4]; ! 331: unsigned int save_vr14[4]; ! 332: unsigned int save_vr15[4]; ! 333: unsigned int save_vr16[4]; ! 334: unsigned int save_vr17[4]; ! 335: unsigned int save_vr18[4]; ! 336: unsigned int save_vr19[4]; ! 337: unsigned int save_vr20[4]; ! 338: unsigned int save_vr21[4]; ! 339: unsigned int save_vr22[4]; ! 340: unsigned int save_vr23[4]; ! 341: unsigned int save_vr24[4]; ! 342: unsigned int save_vr25[4]; ! 343: unsigned int save_vr26[4]; ! 344: unsigned int save_vr27[4]; ! 345: unsigned int save_vr28[4]; ! 346: unsigned int save_vr29[4]; ! 347: unsigned int save_vr30[4]; ! 348: unsigned int save_vr31[4]; ! 349: unsigned int save_vscr[4]; /* Note that this is always valid if VMX has been used */ ! 350: unsigned int save_pad5[4]; /* Insures that vrvalid is on a cache line */ ! 351: unsigned int save_vrvalid; /* VRs that have been saved */ ! 352: unsigned int save_pad6[7]; ! 353: ! 354: /* The following is the save area for the segment registers */ ! 355: ! 356: /* offset 0x0440 */ ! 357: ! 358: unsigned int save_sr0; ! 359: unsigned int save_sr1; ! 360: unsigned int save_sr2; ! 361: unsigned int save_sr3; ! 362: unsigned int save_sr4; ! 363: unsigned int save_sr5; ! 364: unsigned int save_sr6; ! 365: unsigned int save_sr7; ! 366: ! 367: unsigned int save_sr8; ! 368: unsigned int save_sr9; ! 369: unsigned int save_sr10; ! 370: unsigned int save_sr11; ! 371: unsigned int save_sr12; ! 372: unsigned int save_sr13; ! 373: unsigned int save_sr14; ! 374: unsigned int save_sr15; ! 375: ! 376: ! 377: ! 378: /* The following are the control area for this save area */ ! 379: ! 380: /* offset 0x0480 */ ! 381: ! 382: struct savearea *save_prev; /* The address of the previous normal savearea */ ! 383: struct savearea *save_prev_float; /* The address of the previous floating point savearea */ ! 384: struct savearea *save_prev_vector; /* The address of the previous vector savearea */ ! 385: struct savearea *save_qfret; /* The "quick release" chain */ ! 386: struct savearea *save_phys; /* The physical address of this savearea */ ! 387: struct thread_activation *save_act; /* Pointer to the associated activation */ ! 388: unsigned int save_flags; /* Various flags */ ! 389: #define save_perm 0x80000000 /* Permanent area, cannot be released */ ! 390: unsigned int save_level_fp; /* Level that floating point state belongs to */ ! 391: unsigned int save_level_vec; /* Level that vector state belongs to */ ! 392: ! 393: } savearea; ! 394: ! 395: typedef struct savectl { /* Savearea control */ ! 396: ! 397: unsigned int *sac_next; /* Points to next savearea page that has a free slot - real */ ! 398: unsigned int sac_vrswap; /* XOR mask to swap V to R or vice versa */ ! 399: unsigned int sac_alloc; /* Bitmap of allocated slots */ ! 400: unsigned int sac_flags; /* Various flags */ ! 401: } savectl; ! 402: ! 403: struct Saveanchor { ! 404: unsigned int savelock; /* Lock word for savearea manipulation */ ! 405: int savecount; /* The total number of save areas allocated */ ! 406: int saveinuse; /* Number of areas in use */ ! 407: int savemin; /* We abend if lower than this */ ! 408: int saveneghyst; /* The negative hysteresis value */ ! 409: int savetarget; /* The target point for free save areas */ ! 410: int saveposhyst; /* The positive hysteresis value */ ! 411: unsigned int savefree; /* Anchor for the freelist queue */ ! 412: /* Cache line (32-byte) boundary */ ! 413: int savextnd; /* Free list extention count */ ! 414: int saveneed; /* Number of savearea's needed. So far, we assume we need 3 per activation */ ! 415: int savespare[6]; /* Spare */ ! 416: }; ! 417: ! 418: ! 419: extern char *trap_type[]; ! 420: ! 421: #endif /* ndef ASSEMBLER */ ! 422: ! 423: #define sac_empty 0xC0000000 /* Mask with all entries empty */ ! 424: #define sac_cnt 2 /* Number of entries per page */ ! 425: #define sac_busy 0x80000000 /* This page is busy - used during initial allocation */ ! 426: #define sac_perm 0x40000000 /* Page permanently assigned */ ! 427: ! 428: #define SAVattach 0x80000000 /* Savearea is attached to a thread */ ! 429: #define SAVfpuvalid 0x40000000 /* Savearea contains FPU context */ ! 430: #define SAVvmxvalid 0x20000000 /* Savearea contains VMX context */ ! 431: #define SAVinuse 0xE0000000 /* Save area is inuse */ ! 432: #define SAVrststk 0x00010000 /* Indicates that the current stack should be reset to empty */ ! 433: #define SAVsyscall 0x00020000 /* Indicates that the savearea is associated with a syscall */ ! 434: #define SAVredrive 0x00040000 /* Indicates that the low-level fault handler associated */ ! 435: /* with this savearea should be redriven */ ! 436: #define SIGPactive 0x8000 ! 437: #define needSRload 0x4000 ! 438: #define turnEEon 0x2000 ! 439: #define T_VECTOR_SIZE 4 /* function pointer size */ ! 440: #define InitialSaveMin 4 /* The initial value for the minimum number of saveareas */ ! 441: #define InitialNegHysteresis 5 /* The number off from target before we adjust upwards */ ! 442: #define InitialPosHysteresis 10 /* The number off from target before we adjust downwards */ ! 443: #define InitialSaveTarget 20 /* The number of saveareas for an initial target */ ! 444: #define InitialSaveAreas 20 /* The number of saveareas to allocate at boot */ ! 445: #define InitialSaveBloks (InitialSaveAreas+sac_cnt-1)/sac_cnt /* The number of savearea blocks to allocate at boot */ ! 446: ! 447: /* Hardware exceptions */ ! 448: ! 449: #define T_IN_VAIN (0x00 * T_VECTOR_SIZE) ! 450: #define T_RESET (0x01 * T_VECTOR_SIZE) ! 451: #define T_MACHINE_CHECK (0x02 * T_VECTOR_SIZE) ! 452: #define T_DATA_ACCESS (0x03 * T_VECTOR_SIZE) ! 453: #define T_INSTRUCTION_ACCESS (0x04 * T_VECTOR_SIZE) ! 454: #define T_INTERRUPT (0x05 * T_VECTOR_SIZE) ! 455: #define T_ALIGNMENT (0x06 * T_VECTOR_SIZE) ! 456: #define T_PROGRAM (0x07 * T_VECTOR_SIZE) ! 457: #define T_FP_UNAVAILABLE (0x08 * T_VECTOR_SIZE) ! 458: #define T_DECREMENTER (0x09 * T_VECTOR_SIZE) ! 459: #define T_IO_ERROR (0x0a * T_VECTOR_SIZE) ! 460: #define T_RESERVED (0x0b * T_VECTOR_SIZE) ! 461: #define T_SYSTEM_CALL (0x0c * T_VECTOR_SIZE) ! 462: #define T_TRACE (0x0d * T_VECTOR_SIZE) ! 463: #define T_FP_ASSIST (0x0e * T_VECTOR_SIZE) ! 464: #define T_PERF_MON (0x0f * T_VECTOR_SIZE) ! 465: #define T_VMX (0x10 * T_VECTOR_SIZE) ! 466: #define T_INVALID_EXCP0 (0x11 * T_VECTOR_SIZE) ! 467: #define T_INVALID_EXCP1 (0x12 * T_VECTOR_SIZE) ! 468: #define T_INVALID_EXCP2 (0x13 * T_VECTOR_SIZE) ! 469: #define T_INSTRUCTION_BKPT (0x14 * T_VECTOR_SIZE) ! 470: #define T_SYSTEM_MANAGEMENT (0x15 * T_VECTOR_SIZE) ! 471: #define T_ALTIVEC_ASSIST (0x16 * T_VECTOR_SIZE) ! 472: #define T_INVALID_EXCP4 (0x17 * T_VECTOR_SIZE) ! 473: #define T_INVALID_EXCP5 (0x18 * T_VECTOR_SIZE) ! 474: #define T_INVALID_EXCP6 (0x19 * T_VECTOR_SIZE) ! 475: #define T_INVALID_EXCP7 (0x1A * T_VECTOR_SIZE) ! 476: #define T_INVALID_EXCP8 (0x1B * T_VECTOR_SIZE) ! 477: #define T_INVALID_EXCP9 (0x1C * T_VECTOR_SIZE) ! 478: #define T_INVALID_EXCP10 (0x1D * T_VECTOR_SIZE) ! 479: #define T_INVALID_EXCP11 (0x1E * T_VECTOR_SIZE) ! 480: #define T_INVALID_EXCP12 (0x1F * T_VECTOR_SIZE) ! 481: #define T_INVALID_EXCP13 (0x20 * T_VECTOR_SIZE) ! 482: ! 483: #define T_RUNMODE_TRACE (0x21 * T_VECTOR_SIZE) /* 601 only */ ! 484: ! 485: #define T_SIGP (0x22 * T_VECTOR_SIZE) ! 486: #define T_PREEMPT (0x23 * T_VECTOR_SIZE) ! 487: #define T_CSWITCH (0x24 * T_VECTOR_SIZE) ! 488: ! 489: #define T_AST (0x100 * T_VECTOR_SIZE) ! 490: #define T_MAX T_CSWITCH /* Maximum exception no */ ! 491: ! 492: #define EXCEPTION_VECTOR(exception) (exception * 0x100 /T_VECTOR_SIZE ) ! 493: ! 494: #ifndef ASSEMBLER ! 495: ! 496: typedef struct resethandler { ! 497: unsigned int type; ! 498: vm_offset_t call_paddr; ! 499: vm_offset_t arg__paddr; ! 500: } resethandler_t; ! 501: ! 502: extern resethandler_t ResetHandler; ! 503: ! 504: #endif ! 505: ! 506: #define RESET_HANDLER_NULL 0x0 ! 507: #define RESET_HANDLER_START 0x1 ! 508: ! 509: #endif /* _PPC_EXCEPTION_H_ */
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.