SAFE public projects git trees. - safe/jmp/linux-2.6/blob - arch/blackfin/kernel/trace.c

   1 /* provide some functions which dump the trace buffer, in a nice way for people
   2  * to read it, and understand what is going on
   3  *
   4  * Copyright 2004-2010 Analog Devices Inc.
   5  *
   6  * Licensed under the GPL-2 or later
   7  */
   8
   9 #include <linux/kernel.h>
  10 #include <linux/hardirq.h>
  11 #include <linux/thread_info.h>
  12 #include <linux/mm.h>
  13 #include <linux/uaccess.h>
  14 #include <linux/module.h>
  15 #include <linux/kallsyms.h>
  16 #include <linux/err.h>
  17 #include <linux/fs.h>
  18 #include <asm/dma.h>
  19 #include <asm/trace.h>
  20 #include <asm/fixed_code.h>
  21 #include <asm/traps.h>
  22
  23 void decode_address(char *buf, unsigned long address)
  24 {
  25         struct task_struct *p;
  26         struct mm_struct *mm;
  27         unsigned long flags, offset;
  28         unsigned char in_atomic = (bfin_read_IPEND() & 0x10) || in_atomic();
  29         struct rb_node *n;
  30
  31 #ifdef CONFIG_KALLSYMS
  32         unsigned long symsize;
  33         const char *symname;
  34         char *modname;
  35         char *delim = ":";
  36         char namebuf[128];
  37 #endif
  38
  39         buf += sprintf(buf, "<0x%08lx> ", address);
  40
  41 #ifdef CONFIG_KALLSYMS
  42         /* look up the address and see if we are in kernel space */
  43         symname = kallsyms_lookup(address, &symsize, &offset, &modname, namebuf);
  44
  45         if (symname) {
  46                 /* yeah! kernel space! */
  47                 if (!modname)
  48                         modname = delim = "";
  49                 sprintf(buf, "{ %s%s%s%s + 0x%lx }",
  50                         delim, modname, delim, symname,
  51                         (unsigned long)offset);
  52                 return;
  53         }
  54 #endif
  55
  56         if (address >= FIXED_CODE_START && address < FIXED_CODE_END) {
  57                 /* Problem in fixed code section? */
  58                 strcat(buf, "/* Maybe fixed code section */");
  59                 return;
  60
  61         } else if (address < CONFIG_BOOT_LOAD) {
  62                 /* Problem somewhere before the kernel start address */
  63                 strcat(buf, "/* Maybe null pointer? */");
  64                 return;
  65
  66         } else if (address >= COREMMR_BASE) {
  67                 strcat(buf, "/* core mmrs */");
  68                 return;
  69
  70         } else if (address >= SYSMMR_BASE) {
  71                 strcat(buf, "/* system mmrs */");
  72                 return;
  73
  74         } else if (address >= L1_ROM_START && address < L1_ROM_START + L1_ROM_LENGTH) {
  75                 strcat(buf, "/* on-chip L1 ROM */");
  76                 return;
  77         }
  78
  79         /*
  80          * Don't walk any of the vmas if we are oopsing, it has been known
  81          * to cause problems - corrupt vmas (kernel crashes) cause double faults
  82          */
  83         if (oops_in_progress) {
  84                 strcat(buf, "/* kernel dynamic memory (maybe user-space) */");
  85                 return;
  86         }
  87
  88         /* looks like we're off in user-land, so let's walk all the
  89          * mappings of all our processes and see if we can't be a whee
  90          * bit more specific
  91          */
  92         write_lock_irqsave(&tasklist_lock, flags);
  93         for_each_process(p) {
  94                 mm = (in_atomic ? p->mm : get_task_mm(p));
  95                 if (!mm)
  96                         continue;
  97
  98                 if (!down_read_trylock(&mm->mmap_sem)) {
  99                         if (!in_atomic)
 100                                 mmput(mm);
 101                         continue;
 102                 }
 103
 104                 for (n = rb_first(&mm->mm_rb); n; n = rb_next(n)) {
 105                         struct vm_area_struct *vma;
 106
 107                         vma = rb_entry(n, struct vm_area_struct, vm_rb);
 108
 109                         if (address >= vma->vm_start && address < vma->vm_end) {
 110                                 char _tmpbuf[256];
 111                                 char *name = p->comm;
 112                                 struct file *file = vma->vm_file;
 113
 114                                 if (file) {
 115                                         char *d_name = d_path(&file->f_path, _tmpbuf,
 116                                                       sizeof(_tmpbuf));
 117                                         if (!IS_ERR(d_name))
 118                                                 name = d_name;
 119                                 }
 120
 121                                 /* FLAT does not have its text aligned to the start of
 122                                  * the map while FDPIC ELF does ...
 123                                  */
 124
 125                                 /* before we can check flat/fdpic, we need to
 126                                  * make sure current is valid
 127                                  */
 128                                 if ((unsigned long)current >= FIXED_CODE_START &&
 129                                     !((unsigned long)current & 0x3)) {
 130                                         if (current->mm &&
 131                                             (address > current->mm->start_code) &&
 132                                             (address < current->mm->end_code))
 133                                                 offset = address - current->mm->start_code;
 134                                         else
 135                                                 offset = (address - vma->vm_start) +
 136                                                          (vma->vm_pgoff << PAGE_SHIFT);
 137
 138                                         sprintf(buf, "[ %s + 0x%lx ]", name, offset);
 139                                 } else
 140                                         sprintf(buf, "[ %s vma:0x%lx-0x%lx]",
 141                                                 name, vma->vm_start, vma->vm_end);
 142
 143                                 up_read(&mm->mmap_sem);
 144                                 if (!in_atomic)
 145                                         mmput(mm);
 146
 147                                 if (buf[0] == '\0')
 148                                         sprintf(buf, "[ %s ] dynamic memory", name);
 149
 150                                 goto done;
 151                         }
 152                 }
 153
 154                 up_read(&mm->mmap_sem);
 155                 if (!in_atomic)
 156                         mmput(mm);
 157         }
 158
 159         /*
 160          * we were unable to find this address anywhere,
 161          * or some MMs were skipped because they were in use.
 162          */
 163         sprintf(buf, "/* kernel dynamic memory */");
 164
 165 done:
 166         write_unlock_irqrestore(&tasklist_lock, flags);
 167 }
 168
 169 #define EXPAND_LEN ((1 << CONFIG_DEBUG_BFIN_HWTRACE_EXPAND_LEN) * 256 - 1)
 170
 171 /*
 172  * Similar to get_user, do some address checking, then dereference
 173  * Return true on success, false on bad address
 174  */
 175 bool get_instruction(unsigned short *val, unsigned short *address)
 176 {
 177         unsigned long addr = (unsigned long)address;
 178
 179         /* Check for odd addresses */
 180         if (addr & 0x1)
 181                 return false;
 182
 183         /* MMR region will never have instructions */
 184         if (addr >= SYSMMR_BASE)
 185                 return false;
 186
 187         switch (bfin_mem_access_type(addr, 2)) {
 188         case BFIN_MEM_ACCESS_CORE:
 189         case BFIN_MEM_ACCESS_CORE_ONLY:
 190                 *val = *address;
 191                 return true;
 192         case BFIN_MEM_ACCESS_DMA:
 193                 dma_memcpy(val, address, 2);
 194                 return true;
 195         case BFIN_MEM_ACCESS_ITEST:
 196                 isram_memcpy(val, address, 2);
 197                 return true;
 198         default: /* invalid access */
 199                 return false;
 200         }
 201 }
 202
 203 /*
 204  * decode the instruction if we are printing out the trace, as it
 205  * makes things easier to follow, without running it through objdump
 206  * These are the normal instructions which cause change of flow, which
 207  * would be at the source of the trace buffer
 208  */
 209 #if defined(CONFIG_DEBUG_BFIN_HWTRACE_ON)
 210 static void decode_instruction(unsigned short *address)
 211 {
 212         unsigned short opcode;
 213
 214         if (get_instruction(&opcode, address)) {
 215                 if (opcode == 0x0010)
 216                         pr_cont("RTS");
 217                 else if (opcode == 0x0011)
 218                         pr_cont("RTI");
 219                 else if (opcode == 0x0012)
 220                         pr_cont("RTX");
 221                 else if (opcode == 0x0013)
 222                         pr_cont("RTN");
 223                 else if (opcode == 0x0014)
 224                         pr_cont("RTE");
 225                 else if (opcode == 0x0025)
 226                         pr_cont("EMUEXCPT");
 227                 else if (opcode >= 0x0040 && opcode <= 0x0047)
 228                         pr_cont("STI R%i", opcode & 7);
 229                 else if (opcode >= 0x0050 && opcode <= 0x0057)
 230                         pr_cont("JUMP (P%i)", opcode & 7);
 231                 else if (opcode >= 0x0060 && opcode <= 0x0067)
 232                         pr_cont("CALL (P%i)", opcode & 7);
 233                 else if (opcode >= 0x0070 && opcode <= 0x0077)
 234                         pr_cont("CALL (PC+P%i)", opcode & 7);
 235                 else if (opcode >= 0x0080 && opcode <= 0x0087)
 236                         pr_cont("JUMP (PC+P%i)", opcode & 7);
 237                 else if (opcode >= 0x0090 && opcode <= 0x009F)
 238                         pr_cont("RAISE 0x%x", opcode & 0xF);
 239                 else if (opcode >= 0x00A0 && opcode <= 0x00AF)
 240                         pr_cont("EXCPT 0x%x", opcode & 0xF);
 241                 else if ((opcode >= 0x1000 && opcode <= 0x13FF) || (opcode >= 0x1800 && opcode <= 0x1BFF))
 242                         pr_cont("IF !CC JUMP");
 243                 else if ((opcode >= 0x1400 && opcode <= 0x17ff) || (opcode >= 0x1c00 && opcode <= 0x1fff))
 244                         pr_cont("IF CC JUMP");
 245                 else if (opcode >= 0x2000 && opcode <= 0x2fff)
 246                         pr_cont("JUMP.S");
 247                 else if (opcode >= 0xe080 && opcode <= 0xe0ff)
 248                         pr_cont("LSETUP");
 249                 else if (opcode >= 0xe200 && opcode <= 0xe2ff)
 250                         pr_cont("JUMP.L");
 251                 else if (opcode >= 0xe300 && opcode <= 0xe3ff)
 252                         pr_cont("CALL pcrel");
 253                 else
 254                         pr_cont("0x%04x", opcode);
 255         }
 256
 257 }
 258 #endif
 259
 260 void dump_bfin_trace_buffer(void)
 261 {
 262 #ifdef CONFIG_DEBUG_BFIN_HWTRACE_ON
 263         int tflags, i = 0;
 264         char buf[150];
 265         unsigned short *addr;
 266 #ifdef CONFIG_DEBUG_BFIN_HWTRACE_EXPAND
 267         int j, index;
 268 #endif
 269
 270         trace_buffer_save(tflags);
 271
 272         pr_notice("Hardware Trace:\n");
 273
 274 #ifdef CONFIG_DEBUG_BFIN_HWTRACE_EXPAND
 275         pr_notice("WARNING: Expanded trace turned on - can not trace exceptions\n");
 276 #endif
 277
 278         if (likely(bfin_read_TBUFSTAT() & TBUFCNT)) {
 279                 for (; bfin_read_TBUFSTAT() & TBUFCNT; i++) {
 280                         decode_address(buf, (unsigned long)bfin_read_TBUF());
 281                         pr_notice("%4i Target : %s\n", i, buf);
 282                         addr = (unsigned short *)bfin_read_TBUF();
 283                         decode_address(buf, (unsigned long)addr);
 284                         pr_notice("     Source : %s ", buf);
 285                         decode_instruction(addr);
 286                         pr_cont("\n");
 287                 }
 288         }
 289
 290 #ifdef CONFIG_DEBUG_BFIN_HWTRACE_EXPAND
 291         if (trace_buff_offset)
 292                 index = trace_buff_offset / 4;
 293         else
 294                 index = EXPAND_LEN;
 295
 296         j = (1 << CONFIG_DEBUG_BFIN_HWTRACE_EXPAND_LEN) * 128;
 297         while (j) {
 298                 decode_address(buf, software_trace_buff[index]);
 299                 pr_notice("%4i Target : %s\n", i, buf);
 300                 index -= 1;
 301                 if (index < 0)
 302                         index = EXPAND_LEN;
 303                 decode_address(buf, software_trace_buff[index]);
 304                 pr_notice("     Source : %s ", buf);
 305                 decode_instruction((unsigned short *)software_trace_buff[index]);
 306                 pr_cont("\n");
 307                 index -= 1;
 308                 if (index < 0)
 309                         index = EXPAND_LEN;
 310                 j--;
 311                 i++;
 312         }
 313 #endif
 314
 315         trace_buffer_restore(tflags);
 316 #endif
 317 }
 318 EXPORT_SYMBOL(dump_bfin_trace_buffer);
 319
 320 void dump_bfin_process(struct pt_regs *fp)
 321 {
 322         /* We should be able to look at fp->ipend, but we don't push it on the
 323          * stack all the time, so do this until we fix that */
 324         unsigned int context = bfin_read_IPEND();
 325
 326         if (oops_in_progress)
 327                 pr_emerg("Kernel OOPS in progress\n");
 328
 329         if (context & 0x0020 && (fp->seqstat & SEQSTAT_EXCAUSE) == VEC_HWERR)
 330                 pr_notice("HW Error context\n");
 331         else if (context & 0x0020)
 332                 pr_notice("Deferred Exception context\n");
 333         else if (context & 0x3FC0)
 334                 pr_notice("Interrupt context\n");
 335         else if (context & 0x4000)
 336                 pr_notice("Deferred Interrupt context\n");
 337         else if (context & 0x8000)
 338                 pr_notice("Kernel process context\n");
 339
 340         /* Because we are crashing, and pointers could be bad, we check things
 341          * pretty closely before we use them
 342          */
 343         if ((unsigned long)current >= FIXED_CODE_START &&
 344             !((unsigned long)current & 0x3) && current->pid) {
 345                 pr_notice("CURRENT PROCESS:\n");
 346                 if (current->comm >= (char *)FIXED_CODE_START)
 347                         pr_notice("COMM=%s PID=%d",
 348                                 current->comm, current->pid);
 349                 else
 350                         pr_notice("COMM= invalid");
 351
 352                 pr_cont("  CPU=%d\n", current_thread_info()->cpu);
 353                 if (!((unsigned long)current->mm & 0x3) &&
 354                         (unsigned long)current->mm >= FIXED_CODE_START) {
 355                         pr_notice("TEXT = 0x%p-0x%p        DATA = 0x%p-0x%p\n",
 356                                 (void *)current->mm->start_code,
 357                                 (void *)current->mm->end_code,
 358                                 (void *)current->mm->start_data,
 359                                 (void *)current->mm->end_data);
 360                         pr_notice(" BSS = 0x%p-0x%p  USER-STACK = 0x%p\n\n",
 361                                 (void *)current->mm->end_data,
 362                                 (void *)current->mm->brk,
 363                                 (void *)current->mm->start_stack);
 364                 } else
 365                         pr_notice("invalid mm\n");
 366         } else
 367                 pr_notice("No Valid process in current context\n");
 368 }
 369
 370 void dump_bfin_mem(struct pt_regs *fp)
 371 {
 372         unsigned short *addr, *erraddr, val = 0, err = 0;
 373         char sti = 0, buf[6];
 374
 375         erraddr = (void *)fp->pc;
 376
 377         pr_notice("return address: [0x%p]; contents of:", erraddr);
 378
 379         for (addr = (unsigned short *)((unsigned long)erraddr & ~0xF) - 0x10;
 380              addr < (unsigned short *)((unsigned long)erraddr & ~0xF) + 0x10;
 381              addr++) {
 382                 if (!((unsigned long)addr & 0xF))
 383                         pr_notice("0x%p: ", addr);
 384
 385                 if (!get_instruction(&val, addr)) {
 386                                 val = 0;
 387                                 sprintf(buf, "????");
 388                 } else
 389                         sprintf(buf, "%04x", val);
 390
 391                 if (addr == erraddr) {
 392                         pr_cont("[%s]", buf);
 393                         err = val;
 394                 } else
 395                         pr_cont(" %s ", buf);
 396
 397                 /* Do any previous instructions turn on interrupts? */
 398                 if (addr <= erraddr &&                          /* in the past */
 399                     ((val >= 0x0040 && val <= 0x0047) ||        /* STI instruction */
 400                       val == 0x017b))                           /* [SP++] = RETI */
 401                         sti = 1;
 402         }
 403
 404         pr_cont("\n");
 405
 406         /* Hardware error interrupts can be deferred */
 407         if (unlikely(sti && (fp->seqstat & SEQSTAT_EXCAUSE) == VEC_HWERR &&
 408             oops_in_progress)){
 409                 pr_notice("Looks like this was a deferred error - sorry\n");
 410 #ifndef CONFIG_DEBUG_HWERR
 411                 pr_notice("The remaining message may be meaningless\n");
 412                 pr_notice("You should enable CONFIG_DEBUG_HWERR to get a better idea where it came from\n");
 413 #else
 414                 /* If we are handling only one peripheral interrupt
 415                  * and current mm and pid are valid, and the last error
 416                  * was in that user space process's text area
 417                  * print it out - because that is where the problem exists
 418                  */
 419                 if ((!(((fp)->ipend & ~0x30) & (((fp)->ipend & ~0x30) - 1))) &&
 420                      (current->pid && current->mm)) {
 421                         /* And the last RETI points to the current userspace context */
 422                         if ((fp + 1)->pc >= current->mm->start_code &&
 423                             (fp + 1)->pc <= current->mm->end_code) {
 424                                 pr_notice("It might be better to look around here :\n");
 425                                 pr_notice("-------------------------------------------\n");
 426                                 show_regs(fp + 1);
 427                                 pr_notice("-------------------------------------------\n");
 428                         }
 429                 }
 430 #endif
 431         }
 432 }
 433
 434 void show_regs(struct pt_regs *fp)
 435 {
 436         char buf[150];
 437         struct irqaction *action;
 438         unsigned int i;
 439         unsigned long flags = 0;
 440         unsigned int cpu = raw_smp_processor_id();
 441         unsigned char in_atomic = (bfin_read_IPEND() & 0x10) || in_atomic();
 442
 443         pr_notice("\n");
 444         if (CPUID != bfin_cpuid())
 445                 pr_notice("Compiled for cpu family 0x%04x (Rev %d), "
 446                         "but running on:0x%04x (Rev %d)\n",
 447                         CPUID, bfin_compiled_revid(), bfin_cpuid(), bfin_revid());
 448
 449         pr_notice("ADSP-%s-0.%d",
 450                 CPU, bfin_compiled_revid());
 451
 452         if (bfin_compiled_revid() !=  bfin_revid())
 453                 pr_cont("(Detected 0.%d)", bfin_revid());
 454
 455         pr_cont(" %lu(MHz CCLK) %lu(MHz SCLK) (%s)\n",
 456                 get_cclk()/1000000, get_sclk()/1000000,
 457 #ifdef CONFIG_MPU
 458                 "mpu on"
 459 #else
 460                 "mpu off"
 461 #endif
 462                 );
 463
 464         pr_notice("%s", linux_banner);
 465
 466         pr_notice("\nSEQUENCER STATUS:\t\t%s\n", print_tainted());
 467         pr_notice(" SEQSTAT: %08lx  IPEND: %04lx  IMASK: %04lx  SYSCFG: %04lx\n",
 468                 (long)fp->seqstat, fp->ipend, cpu_pda[raw_smp_processor_id()].ex_imask, fp->syscfg);
 469         if (fp->ipend & EVT_IRPTEN)
 470                 pr_notice("  Global Interrupts Disabled (IPEND[4])\n");
 471         if (!(cpu_pda[raw_smp_processor_id()].ex_imask & (EVT_IVG13 | EVT_IVG12 | EVT_IVG11 |
 472                         EVT_IVG10 | EVT_IVG9 | EVT_IVG8 | EVT_IVG7 | EVT_IVTMR)))
 473                 pr_notice("  Peripheral interrupts masked off\n");
 474         if (!(cpu_pda[raw_smp_processor_id()].ex_imask & (EVT_IVG15 | EVT_IVG14)))
 475                 pr_notice("  Kernel interrupts masked off\n");
 476         if ((fp->seqstat & SEQSTAT_EXCAUSE) == VEC_HWERR) {
 477                 pr_notice("  HWERRCAUSE: 0x%lx\n",
 478                         (fp->seqstat & SEQSTAT_HWERRCAUSE) >> 14);
 479 #ifdef EBIU_ERRMST
 480                 /* If the error was from the EBIU, print it out */
 481                 if (bfin_read_EBIU_ERRMST() & CORE_ERROR) {
 482                         pr_notice("  EBIU Error Reason  : 0x%04x\n",
 483                                 bfin_read_EBIU_ERRMST());
 484                         pr_notice("  EBIU Error Address : 0x%08x\n",
 485                                 bfin_read_EBIU_ERRADD());
 486                 }
 487 #endif
 488         }
 489         pr_notice("  EXCAUSE   : 0x%lx\n",
 490                 fp->seqstat & SEQSTAT_EXCAUSE);
 491         for (i = 2; i <= 15 ; i++) {
 492                 if (fp->ipend & (1 << i)) {
 493                         if (i != 4) {
 494                                 decode_address(buf, bfin_read32(EVT0 + 4*i));
 495                                 pr_notice("  physical IVG%i asserted : %s\n", i, buf);
 496                         } else
 497                                 pr_notice("  interrupts disabled\n");
 498                 }
 499         }
 500
 501         /* if no interrupts are going off, don't print this out */
 502         if (fp->ipend & ~0x3F) {
 503                 for (i = 0; i < (NR_IRQS - 1); i++) {
 504                         if (!in_atomic)
 505                                 raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
 506
 507                         action = irq_desc[i].action;
 508                         if (!action)
 509                                 goto unlock;
 510
 511                         decode_address(buf, (unsigned int)action->handler);
 512                         pr_notice("  logical irq %3d mapped  : %s", i, buf);
 513                         for (action = action->next; action; action = action->next) {
 514                                 decode_address(buf, (unsigned int)action->handler);
 515                                 pr_cont(", %s", buf);
 516                         }
 517                         pr_cont("\n");
 518 unlock:
 519                         if (!in_atomic)
 520                                 raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
 521                 }
 522         }
 523
 524         decode_address(buf, fp->rete);
 525         pr_notice(" RETE: %s\n", buf);
 526         decode_address(buf, fp->retn);
 527         pr_notice(" RETN: %s\n", buf);
 528         decode_address(buf, fp->retx);
 529         pr_notice(" RETX: %s\n", buf);
 530         decode_address(buf, fp->rets);
 531         pr_notice(" RETS: %s\n", buf);
 532         decode_address(buf, fp->pc);
 533         pr_notice(" PC  : %s\n", buf);
 534
 535         if (((long)fp->seqstat &  SEQSTAT_EXCAUSE) &&
 536             (((long)fp->seqstat & SEQSTAT_EXCAUSE) != VEC_HWERR)) {
 537                 decode_address(buf, cpu_pda[cpu].dcplb_fault_addr);
 538                 pr_notice("DCPLB_FAULT_ADDR: %s\n", buf);
 539                 decode_address(buf, cpu_pda[cpu].icplb_fault_addr);
 540                 pr_notice("ICPLB_FAULT_ADDR: %s\n", buf);
 541         }
 542
 543         pr_notice("PROCESSOR STATE:\n");
 544         pr_notice(" R0 : %08lx    R1 : %08lx    R2 : %08lx    R3 : %08lx\n",
 545                 fp->r0, fp->r1, fp->r2, fp->r3);
 546         pr_notice(" R4 : %08lx    R5 : %08lx    R6 : %08lx    R7 : %08lx\n",
 547                 fp->r4, fp->r5, fp->r6, fp->r7);
 548         pr_notice(" P0 : %08lx    P1 : %08lx    P2 : %08lx    P3 : %08lx\n",
 549                 fp->p0, fp->p1, fp->p2, fp->p3);
 550         pr_notice(" P4 : %08lx    P5 : %08lx    FP : %08lx    SP : %08lx\n",
 551                 fp->p4, fp->p5, fp->fp, (long)fp);
 552         pr_notice(" LB0: %08lx    LT0: %08lx    LC0: %08lx\n",
 553                 fp->lb0, fp->lt0, fp->lc0);
 554         pr_notice(" LB1: %08lx    LT1: %08lx    LC1: %08lx\n",
 555                 fp->lb1, fp->lt1, fp->lc1);
 556         pr_notice(" B0 : %08lx    L0 : %08lx    M0 : %08lx    I0 : %08lx\n",
 557                 fp->b0, fp->l0, fp->m0, fp->i0);
 558         pr_notice(" B1 : %08lx    L1 : %08lx    M1 : %08lx    I1 : %08lx\n",
 559                 fp->b1, fp->l1, fp->m1, fp->i1);
 560         pr_notice(" B2 : %08lx    L2 : %08lx    M2 : %08lx    I2 : %08lx\n",
 561                 fp->b2, fp->l2, fp->m2, fp->i2);
 562         pr_notice(" B3 : %08lx    L3 : %08lx    M3 : %08lx    I3 : %08lx\n",
 563                 fp->b3, fp->l3, fp->m3, fp->i3);
 564         pr_notice("A0.w: %08lx   A0.x: %08lx   A1.w: %08lx   A1.x: %08lx\n",
 565                 fp->a0w, fp->a0x, fp->a1w, fp->a1x);
 566
 567         pr_notice("USP : %08lx  ASTAT: %08lx\n",
 568                 rdusp(), fp->astat);
 569
 570         pr_notice("\n");
 571 }