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-rw-r--r--arch/arm/mm/blockops.c3
-rw-r--r--arch/arm/mm/fault.c75
-rw-r--r--arch/arm/mm/proc-arm1020.S4
-rw-r--r--arch/arm/mm/proc-arm1020e.S4
4 files changed, 46 insertions, 40 deletions
diff --git a/arch/arm/mm/blockops.c b/arch/arm/mm/blockops.c
index 806c6eeb1b0c..4f5ee2d08996 100644
--- a/arch/arm/mm/blockops.c
+++ b/arch/arm/mm/blockops.c
@@ -25,13 +25,14 @@ blk_flush_kern_dcache_page(void *kaddr)
25{ 25{
26 asm( 26 asm(
27 "add r1, r0, %0 \n\ 27 "add r1, r0, %0 \n\
28 sub r1, r1, %1 \n\
281: .word 0xec401f0e @ mcrr p15, 0, r0, r1, c14, 0 @ blocking \n\ 291: .word 0xec401f0e @ mcrr p15, 0, r0, r1, c14, 0 @ blocking \n\
29 mov r0, #0 \n\ 30 mov r0, #0 \n\
30 mcr p15, 0, r0, c7, c5, 0 \n\ 31 mcr p15, 0, r0, c7, c5, 0 \n\
31 mcr p15, 0, r0, c7, c10, 4 \n\ 32 mcr p15, 0, r0, c7, c10, 4 \n\
32 mov pc, lr" 33 mov pc, lr"
33 : 34 :
34 : "I" (PAGE_SIZE)); 35 : "I" (PAGE_SIZE), "I" (L1_CACHE_BYTES));
35} 36}
36 37
37/* 38/*
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index e25b4fd8412c..65bfe84b6d67 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -372,49 +372,50 @@ do_bad(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
372static struct fsr_info { 372static struct fsr_info {
373 int (*fn)(unsigned long addr, unsigned int fsr, struct pt_regs *regs); 373 int (*fn)(unsigned long addr, unsigned int fsr, struct pt_regs *regs);
374 int sig; 374 int sig;
375 int code;
375 const char *name; 376 const char *name;
376} fsr_info[] = { 377} fsr_info[] = {
377 /* 378 /*
378 * The following are the standard ARMv3 and ARMv4 aborts. ARMv5 379 * The following are the standard ARMv3 and ARMv4 aborts. ARMv5
379 * defines these to be "precise" aborts. 380 * defines these to be "precise" aborts.
380 */ 381 */
381 { do_bad, SIGSEGV, "vector exception" }, 382 { do_bad, SIGSEGV, 0, "vector exception" },
382 { do_bad, SIGILL, "alignment exception" }, 383 { do_bad, SIGILL, BUS_ADRALN, "alignment exception" },
383 { do_bad, SIGKILL, "terminal exception" }, 384 { do_bad, SIGKILL, 0, "terminal exception" },
384 { do_bad, SIGILL, "alignment exception" }, 385 { do_bad, SIGILL, BUS_ADRALN, "alignment exception" },
385 { do_bad, SIGBUS, "external abort on linefetch" }, 386 { do_bad, SIGBUS, 0, "external abort on linefetch" },
386 { do_translation_fault, SIGSEGV, "section translation fault" }, 387 { do_translation_fault, SIGSEGV, SEGV_MAPERR, "section translation fault" },
387 { do_bad, SIGBUS, "external abort on linefetch" }, 388 { do_bad, SIGBUS, 0, "external abort on linefetch" },
388 { do_page_fault, SIGSEGV, "page translation fault" }, 389 { do_page_fault, SIGSEGV, SEGV_MAPERR, "page translation fault" },
389 { do_bad, SIGBUS, "external abort on non-linefetch" }, 390 { do_bad, SIGBUS, 0, "external abort on non-linefetch" },
390 { do_bad, SIGSEGV, "section domain fault" }, 391 { do_bad, SIGSEGV, SEGV_ACCERR, "section domain fault" },
391 { do_bad, SIGBUS, "external abort on non-linefetch" }, 392 { do_bad, SIGBUS, 0, "external abort on non-linefetch" },
392 { do_bad, SIGSEGV, "page domain fault" }, 393 { do_bad, SIGSEGV, SEGV_ACCERR, "page domain fault" },
393 { do_bad, SIGBUS, "external abort on translation" }, 394 { do_bad, SIGBUS, 0, "external abort on translation" },
394 { do_sect_fault, SIGSEGV, "section permission fault" }, 395 { do_sect_fault, SIGSEGV, SEGV_ACCERR, "section permission fault" },
395 { do_bad, SIGBUS, "external abort on translation" }, 396 { do_bad, SIGBUS, 0, "external abort on translation" },
396 { do_page_fault, SIGSEGV, "page permission fault" }, 397 { do_page_fault, SIGSEGV, SEGV_ACCERR, "page permission fault" },
397 /* 398 /*
398 * The following are "imprecise" aborts, which are signalled by bit 399 * The following are "imprecise" aborts, which are signalled by bit
399 * 10 of the FSR, and may not be recoverable. These are only 400 * 10 of the FSR, and may not be recoverable. These are only
400 * supported if the CPU abort handler supports bit 10. 401 * supported if the CPU abort handler supports bit 10.
401 */ 402 */
402 { do_bad, SIGBUS, "unknown 16" }, 403 { do_bad, SIGBUS, 0, "unknown 16" },
403 { do_bad, SIGBUS, "unknown 17" }, 404 { do_bad, SIGBUS, 0, "unknown 17" },
404 { do_bad, SIGBUS, "unknown 18" }, 405 { do_bad, SIGBUS, 0, "unknown 18" },
405 { do_bad, SIGBUS, "unknown 19" }, 406 { do_bad, SIGBUS, 0, "unknown 19" },
406 { do_bad, SIGBUS, "lock abort" }, /* xscale */ 407 { do_bad, SIGBUS, 0, "lock abort" }, /* xscale */
407 { do_bad, SIGBUS, "unknown 21" }, 408 { do_bad, SIGBUS, 0, "unknown 21" },
408 { do_bad, SIGBUS, "imprecise external abort" }, /* xscale */ 409 { do_bad, SIGBUS, BUS_OBJERR, "imprecise external abort" }, /* xscale */
409 { do_bad, SIGBUS, "unknown 23" }, 410 { do_bad, SIGBUS, 0, "unknown 23" },
410 { do_bad, SIGBUS, "dcache parity error" }, /* xscale */ 411 { do_bad, SIGBUS, 0, "dcache parity error" }, /* xscale */
411 { do_bad, SIGBUS, "unknown 25" }, 412 { do_bad, SIGBUS, 0, "unknown 25" },
412 { do_bad, SIGBUS, "unknown 26" }, 413 { do_bad, SIGBUS, 0, "unknown 26" },
413 { do_bad, SIGBUS, "unknown 27" }, 414 { do_bad, SIGBUS, 0, "unknown 27" },
414 { do_bad, SIGBUS, "unknown 28" }, 415 { do_bad, SIGBUS, 0, "unknown 28" },
415 { do_bad, SIGBUS, "unknown 29" }, 416 { do_bad, SIGBUS, 0, "unknown 29" },
416 { do_bad, SIGBUS, "unknown 30" }, 417 { do_bad, SIGBUS, 0, "unknown 30" },
417 { do_bad, SIGBUS, "unknown 31" } 418 { do_bad, SIGBUS, 0, "unknown 31" }
418}; 419};
419 420
420void __init 421void __init
@@ -435,15 +436,19 @@ asmlinkage void
435do_DataAbort(unsigned long addr, unsigned int fsr, struct pt_regs *regs) 436do_DataAbort(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
436{ 437{
437 const struct fsr_info *inf = fsr_info + (fsr & 15) + ((fsr & (1 << 10)) >> 6); 438 const struct fsr_info *inf = fsr_info + (fsr & 15) + ((fsr & (1 << 10)) >> 6);
439 struct siginfo info;
438 440
439 if (!inf->fn(addr, fsr, regs)) 441 if (!inf->fn(addr, fsr, regs))
440 return; 442 return;
441 443
442 printk(KERN_ALERT "Unhandled fault: %s (0x%03x) at 0x%08lx\n", 444 printk(KERN_ALERT "Unhandled fault: %s (0x%03x) at 0x%08lx\n",
443 inf->name, fsr, addr); 445 inf->name, fsr, addr);
444 force_sig(inf->sig, current); 446
445 show_pte(current->mm, addr); 447 info.si_signo = inf->sig;
446 die_if_kernel("Oops", regs, 0); 448 info.si_errno = 0;
449 info.si_code = inf->code;
450 info.si_addr = (void __user *)addr;
451 notify_die("", regs, &info, fsr, 0);
447} 452}
448 453
449asmlinkage void 454asmlinkage void
diff --git a/arch/arm/mm/proc-arm1020.S b/arch/arm/mm/proc-arm1020.S
index 1f325231b9e4..5c0ae5260d1c 100644
--- a/arch/arm/mm/proc-arm1020.S
+++ b/arch/arm/mm/proc-arm1020.S
@@ -445,14 +445,14 @@ __arm1020_setup:
445 /* 445 /*
446 * R 446 * R
447 * .RVI ZFRS BLDP WCAM 447 * .RVI ZFRS BLDP WCAM
448 * .0.1 1001 ..11 0101 /* FIXME: why no V bit? */ 448 * .011 1001 ..11 0101
449 */ 449 */
450 .type arm1020_cr1_clear, #object 450 .type arm1020_cr1_clear, #object
451 .type arm1020_cr1_set, #object 451 .type arm1020_cr1_set, #object
452arm1020_cr1_clear: 452arm1020_cr1_clear:
453 .word 0x593f 453 .word 0x593f
454arm1020_cr1_set: 454arm1020_cr1_set:
455 .word 0x1935 455 .word 0x3935
456 456
457 __INITDATA 457 __INITDATA
458 458
diff --git a/arch/arm/mm/proc-arm1020e.S b/arch/arm/mm/proc-arm1020e.S
index 142a2c2d6f0b..d69389c4d4ba 100644
--- a/arch/arm/mm/proc-arm1020e.S
+++ b/arch/arm/mm/proc-arm1020e.S
@@ -427,14 +427,14 @@ __arm1020e_setup:
427 /* 427 /*
428 * R 428 * R
429 * .RVI ZFRS BLDP WCAM 429 * .RVI ZFRS BLDP WCAM
430 * .0.1 1001 ..11 0101 /* FIXME: why no V bit? */ 430 * .011 1001 ..11 0101
431 */ 431 */
432 .type arm1020e_cr1_clear, #object 432 .type arm1020e_cr1_clear, #object
433 .type arm1020e_cr1_set, #object 433 .type arm1020e_cr1_set, #object
434arm1020e_cr1_clear: 434arm1020e_cr1_clear:
435 .word 0x5f3f 435 .word 0x5f3f
436arm1020e_cr1_set: 436arm1020e_cr1_set:
437 .word 0x1935 437 .word 0x3935
438 438
439 __INITDATA 439 __INITDATA
440 440
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-18 13:09:16 -0500