mirror of
https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
synced 2024-09-21 20:04:01 +00:00
Blackfin arch: Add optional verbose debug
Add optional verbose debug - which when turned off, quiets down userspace errors. Saves ~8k of code/data for production systems Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
This commit is contained in:
Robin Getz
Bryan Wu
parent
a88c71e436
commit
9f06c38fb2
2 changed files with 143 additions and 100 deletions
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@ -5,6 +5,19 @@ source "lib/Kconfig.debug"
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config HAVE_ARCH_KGDB
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def_bool y
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config DEBUG_VERBOSE
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bool "Verbose fault messages"
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default y
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select PRINTK
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help
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When a program crashes due to an exception, or the kernel detects
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an internal error, the kernel can print a not so brief message
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explaining what the problem was. This debugging information is
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useful to developers and kernel hackers when tracking down problems,
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but mostly meaningless to other people. This is always helpful for
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debugging but serves no purpose on a production system.
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Most people should say N here.
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config DEBUG_MMRS
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bool "Generate Blackfin MMR tree"
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select DEBUG_FS
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@ -58,6 +58,15 @@
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# define CHK_DEBUGGER_TRAP_MAYBE() do { } while (0)
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#endif
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#ifdef CONFIG_VERBOSE_DEBUG
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#define verbose_printk(fmt, arg...) \
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printk(fmt, ##arg)
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#else
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#define verbose_printk(fmt, arg...) \
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({ if (0) printk(fmt, ##arg); 0; })
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#endif
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/* Initiate the event table handler */
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void __init trap_init(void)
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{
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@ -78,6 +87,7 @@ unsigned long saved_retx, saved_seqstat,
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static void decode_address(char *buf, unsigned long address)
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{
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#ifdef CONFIG_DEBUG_VERBOSE
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struct vm_list_struct *vml;
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struct task_struct *p;
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struct mm_struct *mm;
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@ -185,12 +195,16 @@ static void decode_address(char *buf, unsigned long address)
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done:
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write_unlock_irqrestore(&tasklist_lock, flags);
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#else
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sprintf(buf, " ");
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#endif
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}
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asmlinkage void double_fault_c(struct pt_regs *fp)
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{
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console_verbose();
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oops_in_progress = 1;
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#ifdef CONFIG_DEBUG_VERBOSE
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printk(KERN_EMERG "\n" KERN_EMERG "Double Fault\n");
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#ifdef CONFIG_DEBUG_DOUBLEFAULT_PRINT
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if (((long)fp->seqstat & SEQSTAT_EXCAUSE) == VEC_UNCOV) {
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@ -213,6 +227,7 @@ asmlinkage void double_fault_c(struct pt_regs *fp)
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dump_bfin_mem(fp);
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show_regs(fp);
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}
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#endif
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panic("Double Fault - unrecoverable event\n");
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}
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@ -288,7 +303,7 @@ asmlinkage void trap_c(struct pt_regs *fp)
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case VEC_EXCPT03:
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info.si_code = SEGV_STACKFLOW;
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sig = SIGSEGV;
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printk(KERN_NOTICE EXC_0x03(KERN_NOTICE));
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verbose_printk(KERN_NOTICE EXC_0x03(KERN_NOTICE));
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CHK_DEBUGGER_TRAP_MAYBE();
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break;
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/* 0x02 - KGDB initial connection and break signal trap */
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@ -317,7 +332,7 @@ asmlinkage void trap_c(struct pt_regs *fp)
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case VEC_EXCPT04 ... VEC_EXCPT15:
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info.si_code = ILL_ILLPARAOP;
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sig = SIGILL;
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printk(KERN_NOTICE EXC_0x04(KERN_NOTICE));
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verbose_printk(KERN_NOTICE EXC_0x04(KERN_NOTICE));
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CHK_DEBUGGER_TRAP_MAYBE();
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break;
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/* 0x10 HW Single step, handled here */
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@ -334,7 +349,7 @@ asmlinkage void trap_c(struct pt_regs *fp)
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case VEC_OVFLOW:
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info.si_code = TRAP_TRACEFLOW;
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sig = SIGTRAP;
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printk(KERN_NOTICE EXC_0x11(KERN_NOTICE));
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verbose_printk(KERN_NOTICE EXC_0x11(KERN_NOTICE));
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CHK_DEBUGGER_TRAP_MAYBE();
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break;
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/* 0x12 - Reserved, Caught by default */
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@ -356,35 +371,35 @@ asmlinkage void trap_c(struct pt_regs *fp)
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case VEC_UNDEF_I:
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info.si_code = ILL_ILLOPC;
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sig = SIGILL;
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printk(KERN_NOTICE EXC_0x21(KERN_NOTICE));
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verbose_printk(KERN_NOTICE EXC_0x21(KERN_NOTICE));
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CHK_DEBUGGER_TRAP_MAYBE();
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break;
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/* 0x22 - Illegal Instruction Combination, handled here */
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case VEC_ILGAL_I:
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info.si_code = ILL_ILLPARAOP;
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sig = SIGILL;
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printk(KERN_NOTICE EXC_0x22(KERN_NOTICE));
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verbose_printk(KERN_NOTICE EXC_0x22(KERN_NOTICE));
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CHK_DEBUGGER_TRAP_MAYBE();
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break;
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/* 0x23 - Data CPLB protection violation, handled here */
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case VEC_CPLB_VL:
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info.si_code = ILL_CPLB_VI;
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sig = SIGBUS;
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printk(KERN_NOTICE EXC_0x23(KERN_NOTICE));
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verbose_printk(KERN_NOTICE EXC_0x23(KERN_NOTICE));
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CHK_DEBUGGER_TRAP_MAYBE();
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break;
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/* 0x24 - Data access misaligned, handled here */
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case VEC_MISALI_D:
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info.si_code = BUS_ADRALN;
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sig = SIGBUS;
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printk(KERN_NOTICE EXC_0x24(KERN_NOTICE));
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verbose_printk(KERN_NOTICE EXC_0x24(KERN_NOTICE));
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CHK_DEBUGGER_TRAP_MAYBE();
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break;
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/* 0x25 - Unrecoverable Event, handled here */
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case VEC_UNCOV:
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info.si_code = ILL_ILLEXCPT;
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sig = SIGILL;
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printk(KERN_NOTICE EXC_0x25(KERN_NOTICE));
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verbose_printk(KERN_NOTICE EXC_0x25(KERN_NOTICE));
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CHK_DEBUGGER_TRAP_MAYBE();
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break;
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/* 0x26 - Data CPLB Miss, normal case is handled in _cplb_hdr,
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@ -392,7 +407,7 @@ asmlinkage void trap_c(struct pt_regs *fp)
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case VEC_CPLB_M:
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info.si_code = BUS_ADRALN;
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sig = SIGBUS;
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printk(KERN_NOTICE EXC_0x26(KERN_NOTICE));
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verbose_printk(KERN_NOTICE EXC_0x26(KERN_NOTICE));
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break;
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/* 0x27 - Data CPLB Multiple Hits - Linux Trap Zero, handled here */
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case VEC_CPLB_MHIT:
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@ -400,10 +415,10 @@ asmlinkage void trap_c(struct pt_regs *fp)
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sig = SIGSEGV;
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#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
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if (saved_dcplb_fault_addr < FIXED_CODE_START)
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printk(KERN_NOTICE "NULL pointer access\n");
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verbose_printk(KERN_NOTICE "NULL pointer access\n");
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else
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#endif
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printk(KERN_NOTICE EXC_0x27(KERN_NOTICE));
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verbose_printk(KERN_NOTICE EXC_0x27(KERN_NOTICE));
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CHK_DEBUGGER_TRAP_MAYBE();
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break;
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/* 0x28 - Emulation Watchpoint, handled here */
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@ -422,7 +437,7 @@ asmlinkage void trap_c(struct pt_regs *fp)
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case VEC_ISTRU_VL: /* ADSP-BF535 only (MH) */
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info.si_code = BUS_OPFETCH;
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sig = SIGBUS;
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printk(KERN_NOTICE "BF535: VEC_ISTRU_VL\n");
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verbose_printk(KERN_NOTICE "BF535: VEC_ISTRU_VL\n");
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CHK_DEBUGGER_TRAP_MAYBE();
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break;
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#else
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@ -432,21 +447,21 @@ asmlinkage void trap_c(struct pt_regs *fp)
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case VEC_MISALI_I:
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info.si_code = BUS_ADRALN;
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sig = SIGBUS;
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printk(KERN_NOTICE EXC_0x2A(KERN_NOTICE));
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verbose_printk(KERN_NOTICE EXC_0x2A(KERN_NOTICE));
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CHK_DEBUGGER_TRAP_MAYBE();
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break;
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/* 0x2B - Instruction CPLB protection violation, handled here */
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case VEC_CPLB_I_VL:
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info.si_code = ILL_CPLB_VI;
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sig = SIGBUS;
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printk(KERN_NOTICE EXC_0x2B(KERN_NOTICE));
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verbose_printk(KERN_NOTICE EXC_0x2B(KERN_NOTICE));
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CHK_DEBUGGER_TRAP_MAYBE();
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break;
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/* 0x2C - Instruction CPLB miss, handled in _cplb_hdr */
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case VEC_CPLB_I_M:
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info.si_code = ILL_CPLB_MISS;
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sig = SIGBUS;
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printk(KERN_NOTICE EXC_0x2C(KERN_NOTICE));
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verbose_printk(KERN_NOTICE EXC_0x2C(KERN_NOTICE));
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break;
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/* 0x2D - Instruction CPLB Multiple Hits, handled here */
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case VEC_CPLB_I_MHIT:
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@ -454,17 +469,17 @@ asmlinkage void trap_c(struct pt_regs *fp)
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sig = SIGSEGV;
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#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
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if (saved_icplb_fault_addr < FIXED_CODE_START)
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printk(KERN_NOTICE "Jump to NULL address\n");
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verbose_printk(KERN_NOTICE "Jump to NULL address\n");
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else
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#endif
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printk(KERN_NOTICE EXC_0x2D(KERN_NOTICE));
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verbose_printk(KERN_NOTICE EXC_0x2D(KERN_NOTICE));
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CHK_DEBUGGER_TRAP_MAYBE();
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break;
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/* 0x2E - Illegal use of Supervisor Resource, handled here */
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case VEC_ILL_RES:
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info.si_code = ILL_PRVOPC;
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sig = SIGILL;
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printk(KERN_NOTICE EXC_0x2E(KERN_NOTICE));
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verbose_printk(KERN_NOTICE EXC_0x2E(KERN_NOTICE));
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CHK_DEBUGGER_TRAP_MAYBE();
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break;
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/* 0x2F - Reserved, Caught by default */
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@ -492,17 +507,17 @@ asmlinkage void trap_c(struct pt_regs *fp)
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case (SEQSTAT_HWERRCAUSE_SYSTEM_MMR):
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info.si_code = BUS_ADRALN;
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sig = SIGBUS;
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printk(KERN_NOTICE HWC_x2(KERN_NOTICE));
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verbose_printk(KERN_NOTICE HWC_x2(KERN_NOTICE));
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break;
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/* External Memory Addressing Error */
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case (SEQSTAT_HWERRCAUSE_EXTERN_ADDR):
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info.si_code = BUS_ADRERR;
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sig = SIGBUS;
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printk(KERN_NOTICE HWC_x3(KERN_NOTICE));
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verbose_printk(KERN_NOTICE HWC_x3(KERN_NOTICE));
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break;
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/* Performance Monitor Overflow */
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case (SEQSTAT_HWERRCAUSE_PERF_FLOW):
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printk(KERN_NOTICE HWC_x12(KERN_NOTICE));
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verbose_printk(KERN_NOTICE HWC_x12(KERN_NOTICE));
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break;
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/* RAISE 5 instruction */
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case (SEQSTAT_HWERRCAUSE_RAISE_5):
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@ -522,7 +537,7 @@ asmlinkage void trap_c(struct pt_regs *fp)
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oops_in_progress = 1;
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info.si_code = ILL_ILLPARAOP;
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sig = SIGILL;
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printk(KERN_EMERG "Caught Unhandled Exception, code = %08lx\n",
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verbose_printk(KERN_EMERG "Caught Unhandled Exception, code = %08lx\n",
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(fp->seqstat & SEQSTAT_EXCAUSE));
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CHK_DEBUGGER_TRAP_MAYBE();
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break;
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@ -531,7 +546,6 @@ asmlinkage void trap_c(struct pt_regs *fp)
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BUG_ON(sig == 0);
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if (sig != SIGTRAP) {
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unsigned long *stack;
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dump_bfin_process(fp);
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dump_bfin_mem(fp);
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show_regs(fp);
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@ -539,7 +553,7 @@ asmlinkage void trap_c(struct pt_regs *fp)
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/* Print out the trace buffer if it makes sense */
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#ifndef CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE
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if (trapnr == VEC_CPLB_I_M || trapnr == VEC_CPLB_M)
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printk(KERN_NOTICE "No trace since you do not have "
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verbose_printk(KERN_NOTICE "No trace since you do not have "
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"CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE enabled\n"
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KERN_NOTICE "\n");
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else
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@ -548,20 +562,22 @@ asmlinkage void trap_c(struct pt_regs *fp)
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if (oops_in_progress) {
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/* Dump the current kernel stack */
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printk(KERN_NOTICE "\n" KERN_NOTICE "Kernel Stack\n");
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verbose_printk(KERN_NOTICE "\n" KERN_NOTICE "Kernel Stack\n");
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show_stack(current, NULL);
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print_modules();
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#ifndef CONFIG_ACCESS_CHECK
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printk(KERN_EMERG "Please turn on "
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verbose_printk(KERN_EMERG "Please turn on "
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"CONFIG_ACCESS_CHECK\n");
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#endif
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panic("Kernel exception");
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} else {
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#ifdef CONFIG_VERBOSE_DEBUG
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unsigned long *stack;
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/* Dump the user space stack */
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stack = (unsigned long *)rdusp();
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printk(KERN_NOTICE "Userspace Stack\n");
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verbose_printk(KERN_NOTICE "Userspace Stack\n");
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show_stack(NULL, stack);
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#endif
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}
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}
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@ -582,7 +598,7 @@ asmlinkage void trap_c(struct pt_regs *fp)
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* Similar to get_user, do some address checking, then dereference
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* Return true on sucess, false on bad address
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*/
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bool get_instruction(unsigned short *val, unsigned short *address)
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static bool get_instruction(unsigned short *val, unsigned short *address)
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{
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unsigned long addr;
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@ -643,45 +659,48 @@ bool get_instruction(unsigned short *val, unsigned short *address)
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* These are the normal instructions which cause change of flow, which
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* would be at the source of the trace buffer
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*/
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void decode_instruction(unsigned short *address)
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#ifdef CONFIG_DEBUG_VERBOSE
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static void decode_instruction(unsigned short *address)
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{
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unsigned short opcode;
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if (get_instruction(&opcode, address)) {
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if (opcode == 0x0010)
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printk("RTS");
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verbose_printk("RTS");
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else if (opcode == 0x0011)
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printk("RTI");
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verbose_printk("RTI");
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else if (opcode == 0x0012)
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printk("RTX");
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verbose_printk("RTX");
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else if (opcode >= 0x0050 && opcode <= 0x0057)
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printk("JUMP (P%i)", opcode & 7);
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verbose_printk("JUMP (P%i)", opcode & 7);
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else if (opcode >= 0x0060 && opcode <= 0x0067)
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printk("CALL (P%i)", opcode & 7);
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verbose_printk("CALL (P%i)", opcode & 7);
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else if (opcode >= 0x0070 && opcode <= 0x0077)
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printk("CALL (PC+P%i)", opcode & 7);
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verbose_printk("CALL (PC+P%i)", opcode & 7);
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else if (opcode >= 0x0080 && opcode <= 0x0087)
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printk("JUMP (PC+P%i)", opcode & 7);
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verbose_printk("JUMP (PC+P%i)", opcode & 7);
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else if ((opcode >= 0x1000 && opcode <= 0x13FF) || (opcode >= 0x1800 && opcode <= 0x1BFF))
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printk("IF !CC JUMP");
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verbose_printk("IF !CC JUMP");
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else if ((opcode >= 0x1400 && opcode <= 0x17ff) || (opcode >= 0x1c00 && opcode <= 0x1fff))
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printk("IF CC JUMP");
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verbose_printk("IF CC JUMP");
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else if (opcode >= 0x2000 && opcode <= 0x2fff)
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printk("JUMP.S");
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verbose_printk("JUMP.S");
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else if (opcode >= 0xe080 && opcode <= 0xe0ff)
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printk("LSETUP");
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verbose_printk("LSETUP");
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else if (opcode >= 0xe200 && opcode <= 0xe2ff)
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printk("JUMP.L");
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verbose_printk("JUMP.L");
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else if (opcode >= 0xe300 && opcode <= 0xe3ff)
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printk("CALL pcrel");
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verbose_printk("CALL pcrel");
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else
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printk("0x%04x", opcode);
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verbose_printk("0x%04x", opcode);
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}
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}
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#endif
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void dump_bfin_trace_buffer(void)
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{
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#ifdef CONFIG_DEBUG_VERBOSE
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#ifdef CONFIG_DEBUG_BFIN_HWTRACE_ON
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int tflags, i = 0;
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char buf[150];
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@ -737,6 +756,7 @@ void dump_bfin_trace_buffer(void)
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trace_buffer_restore(tflags);
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#endif
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#endif
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}
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EXPORT_SYMBOL(dump_bfin_trace_buffer);
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@ -744,7 +764,7 @@ EXPORT_SYMBOL(dump_bfin_trace_buffer);
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* Checks to see if the address pointed to is either a
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* 16-bit CALL instruction, or a 32-bit CALL instruction
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*/
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bool is_bfin_call(unsigned short *addr)
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static bool is_bfin_call(unsigned short *addr)
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{
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unsigned short opcode = 0, *ins_addr;
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ins_addr = (unsigned short *)addr;
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@ -766,8 +786,10 @@ bool is_bfin_call(unsigned short *addr)
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return false;
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}
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void show_stack(struct task_struct *task, unsigned long *stack)
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{
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#ifdef CONFIG_PRINTK
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unsigned int *addr, *endstack, *fp = 0, *frame;
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unsigned short *ins_addr;
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char buf[150];
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@ -792,8 +814,10 @@ void show_stack(struct task_struct *task, unsigned long *stack)
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} else
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endstack = (unsigned int *)PAGE_ALIGN((unsigned int)stack);
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printk(KERN_NOTICE "Stack info:\n");
|
||||
decode_address(buf, (unsigned int)stack);
|
||||
printk(KERN_NOTICE "Stack info:\n" KERN_NOTICE " SP: [0x%p] %s\n", stack, buf);
|
||||
printk(KERN_NOTICE " SP: [0x%p] %s\n", stack, buf);
|
||||
|
||||
addr = (unsigned int *)((unsigned int)stack & ~0x3F);
|
||||
|
||||
/* First thing is to look for a frame pointer */
|
||||
|
|
@ -884,7 +908,7 @@ void show_stack(struct task_struct *task, unsigned long *stack)
|
|||
if (!j)
|
||||
printk("\n");
|
||||
}
|
||||
|
||||
#endif
|
||||
}
|
||||
|
||||
void dump_stack(void)
|
||||
|
|
@ -902,38 +926,39 @@ EXPORT_SYMBOL(dump_stack);
|
|||
|
||||
void dump_bfin_process(struct pt_regs *fp)
|
||||
{
|
||||
#ifdef CONFIG_DEBUG_VERBOSE
|
||||
/* We should be able to look at fp->ipend, but we don't push it on the
|
||||
* stack all the time, so do this until we fix that */
|
||||
unsigned int context = bfin_read_IPEND();
|
||||
|
||||
if (oops_in_progress)
|
||||
printk(KERN_EMERG "Kernel OOPS in progress\n");
|
||||
verbose_printk(KERN_EMERG "Kernel OOPS in progress\n");
|
||||
|
||||
if (context & 0x0020 && (fp->seqstat & SEQSTAT_EXCAUSE) == VEC_HWERR)
|
||||
printk(KERN_NOTICE "HW Error context\n");
|
||||
verbose_printk(KERN_NOTICE "HW Error context\n");
|
||||
else if (context & 0x0020)
|
||||
printk(KERN_NOTICE "Deferred Exception context\n");
|
||||
verbose_printk(KERN_NOTICE "Deferred Exception context\n");
|
||||
else if (context & 0x3FC0)
|
||||
printk(KERN_NOTICE "Interrupt context\n");
|
||||
verbose_printk(KERN_NOTICE "Interrupt context\n");
|
||||
else if (context & 0x4000)
|
||||
printk(KERN_NOTICE "Deferred Interrupt context\n");
|
||||
verbose_printk(KERN_NOTICE "Deferred Interrupt context\n");
|
||||
else if (context & 0x8000)
|
||||
printk(KERN_NOTICE "Kernel process context\n");
|
||||
verbose_printk(KERN_NOTICE "Kernel process context\n");
|
||||
|
||||
/* Because we are crashing, and pointers could be bad, we check things
|
||||
* pretty closely before we use them
|
||||
*/
|
||||
if ((unsigned long)current >= FIXED_CODE_START &&
|
||||
!((unsigned long)current & 0x3) && current->pid) {
|
||||
printk(KERN_NOTICE "CURRENT PROCESS:\n");
|
||||
verbose_printk(KERN_NOTICE "CURRENT PROCESS:\n");
|
||||
if (current->comm >= (char *)FIXED_CODE_START)
|
||||
printk(KERN_NOTICE "COMM=%s PID=%d\n",
|
||||
verbose_printk(KERN_NOTICE "COMM=%s PID=%d\n",
|
||||
current->comm, current->pid);
|
||||
else
|
||||
printk(KERN_NOTICE "COMM= invalid\n");
|
||||
verbose_printk(KERN_NOTICE "COMM= invalid\n");
|
||||
|
||||
if (!((unsigned long)current->mm & 0x3) && (unsigned long)current->mm >= FIXED_CODE_START)
|
||||
printk(KERN_NOTICE "TEXT = 0x%p-0x%p DATA = 0x%p-0x%p\n"
|
||||
verbose_printk(KERN_NOTICE "TEXT = 0x%p-0x%p DATA = 0x%p-0x%p\n"
|
||||
KERN_NOTICE " BSS = 0x%p-0x%p USER-STACK = 0x%p\n"
|
||||
KERN_NOTICE "\n",
|
||||
(void *)current->mm->start_code,
|
||||
|
|
@ -944,26 +969,28 @@ void dump_bfin_process(struct pt_regs *fp)
|
|||
(void *)current->mm->brk,
|
||||
(void *)current->mm->start_stack);
|
||||
else
|
||||
printk(KERN_NOTICE "invalid mm\n");
|
||||
verbose_printk(KERN_NOTICE "invalid mm\n");
|
||||
} else
|
||||
printk(KERN_NOTICE "\n" KERN_NOTICE
|
||||
verbose_printk(KERN_NOTICE "\n" KERN_NOTICE
|
||||
"No Valid process in current context\n");
|
||||
#endif
|
||||
}
|
||||
|
||||
void dump_bfin_mem(struct pt_regs *fp)
|
||||
{
|
||||
#ifdef CONFIG_DEBUG_VERBOSE
|
||||
unsigned short *addr, *erraddr, val = 0, err = 0;
|
||||
char sti = 0, buf[6];
|
||||
|
||||
erraddr = (void *)fp->pc;
|
||||
|
||||
printk(KERN_NOTICE "return address: [0x%p]; contents of:", erraddr);
|
||||
verbose_printk(KERN_NOTICE "return address: [0x%p]; contents of:", erraddr);
|
||||
|
||||
for (addr = (unsigned short *)((unsigned long)erraddr & ~0xF) - 0x10;
|
||||
addr < (unsigned short *)((unsigned long)erraddr & ~0xF) + 0x10;
|
||||
addr++) {
|
||||
if (!((unsigned long)addr & 0xF))
|
||||
printk("\n" KERN_NOTICE "0x%p: ", addr);
|
||||
verbose_printk("\n" KERN_NOTICE "0x%p: ", addr);
|
||||
|
||||
if (!get_instruction(&val, addr)) {
|
||||
val = 0;
|
||||
|
|
@ -972,10 +999,10 @@ void dump_bfin_mem(struct pt_regs *fp)
|
|||
sprintf(buf, "%04x", val);
|
||||
|
||||
if (addr == erraddr) {
|
||||
printk("[%s]", buf);
|
||||
verbose_printk("[%s]", buf);
|
||||
err = val;
|
||||
} else
|
||||
printk(" %s ", buf);
|
||||
verbose_printk(" %s ", buf);
|
||||
|
||||
/* Do any previous instructions turn on interrupts? */
|
||||
if (addr <= erraddr && /* in the past */
|
||||
|
|
@ -984,14 +1011,14 @@ void dump_bfin_mem(struct pt_regs *fp)
|
|||
sti = 1;
|
||||
}
|
||||
|
||||
printk("\n");
|
||||
verbose_printk("\n");
|
||||
|
||||
/* Hardware error interrupts can be deferred */
|
||||
if (unlikely(sti && (fp->seqstat & SEQSTAT_EXCAUSE) == VEC_HWERR &&
|
||||
oops_in_progress)){
|
||||
printk(KERN_NOTICE "Looks like this was a deferred error - sorry\n");
|
||||
verbose_printk(KERN_NOTICE "Looks like this was a deferred error - sorry\n");
|
||||
#ifndef CONFIG_DEBUG_HWERR
|
||||
printk(KERN_NOTICE "The remaining message may be meaningless\n"
|
||||
verbose_printk(KERN_NOTICE "The remaining message may be meaningless\n"
|
||||
KERN_NOTICE "You should enable CONFIG_DEBUG_HWERR to get a"
|
||||
" better idea where it came from\n");
|
||||
#else
|
||||
|
|
@ -1005,45 +1032,47 @@ void dump_bfin_mem(struct pt_regs *fp)
|
|||
/* And the last RETI points to the current userspace context */
|
||||
if ((fp + 1)->pc >= current->mm->start_code &&
|
||||
(fp + 1)->pc <= current->mm->end_code) {
|
||||
printk(KERN_NOTICE "It might be better to look around here : \n");
|
||||
printk(KERN_NOTICE "-------------------------------------------\n");
|
||||
verbose_printk(KERN_NOTICE "It might be better to look around here : \n");
|
||||
verbose_printk(KERN_NOTICE "-------------------------------------------\n");
|
||||
show_regs(fp + 1);
|
||||
printk(KERN_NOTICE "-------------------------------------------\n");
|
||||
verbose_printk(KERN_NOTICE "-------------------------------------------\n");
|
||||
}
|
||||
}
|
||||
#endif
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
void show_regs(struct pt_regs *fp)
|
||||
{
|
||||
#ifdef CONFIG_DEBUG_VERBOSE
|
||||
char buf [150];
|
||||
struct irqaction *action;
|
||||
unsigned int i;
|
||||
unsigned long flags;
|
||||
|
||||
printk(KERN_NOTICE "\n" KERN_NOTICE "SEQUENCER STATUS:\t\t%s\n", print_tainted());
|
||||
printk(KERN_NOTICE " SEQSTAT: %08lx IPEND: %04lx SYSCFG: %04lx\n",
|
||||
verbose_printk(KERN_NOTICE "\n" KERN_NOTICE "SEQUENCER STATUS:\t\t%s\n", print_tainted());
|
||||
verbose_printk(KERN_NOTICE " SEQSTAT: %08lx IPEND: %04lx SYSCFG: %04lx\n",
|
||||
(long)fp->seqstat, fp->ipend, fp->syscfg);
|
||||
if ((fp->seqstat & SEQSTAT_EXCAUSE) == VEC_HWERR) {
|
||||
printk(KERN_NOTICE " HWERRCAUSE: 0x%lx\n",
|
||||
verbose_printk(KERN_NOTICE " HWERRCAUSE: 0x%lx\n",
|
||||
(fp->seqstat & SEQSTAT_HWERRCAUSE) >> 14);
|
||||
#ifdef EBIU_ERRMST
|
||||
/* If the error was from the EBIU, print it out */
|
||||
if (bfin_read_EBIU_ERRMST() & CORE_ERROR) {
|
||||
printk(KERN_NOTICE " EBIU Error Reason : 0x%04x\n",
|
||||
verbose_printk(KERN_NOTICE " EBIU Error Reason : 0x%04x\n",
|
||||
bfin_read_EBIU_ERRMST());
|
||||
printk(KERN_NOTICE " EBIU Error Address : 0x%08x\n",
|
||||
verbose_printk(KERN_NOTICE " EBIU Error Address : 0x%08x\n",
|
||||
bfin_read_EBIU_ERRADD());
|
||||
}
|
||||
#endif
|
||||
}
|
||||
printk(KERN_NOTICE " EXCAUSE : 0x%lx\n",
|
||||
verbose_printk(KERN_NOTICE " EXCAUSE : 0x%lx\n",
|
||||
fp->seqstat & SEQSTAT_EXCAUSE);
|
||||
for (i = 6; i <= 15 ; i++) {
|
||||
if (fp->ipend & (1 << i)) {
|
||||
decode_address(buf, bfin_read32(EVT0 + 4*i));
|
||||
printk(KERN_NOTICE " physical IVG%i asserted : %s\n", i, buf);
|
||||
verbose_printk(KERN_NOTICE " physical IVG%i asserted : %s\n", i, buf);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -1056,64 +1085,65 @@ void show_regs(struct pt_regs *fp)
|
|||
goto unlock;
|
||||
|
||||
decode_address(buf, (unsigned int)action->handler);
|
||||
printk(KERN_NOTICE " logical irq %3d mapped : %s", i, buf);
|
||||
verbose_printk(KERN_NOTICE " logical irq %3d mapped : %s", i, buf);
|
||||
for (action = action->next; action; action = action->next) {
|
||||
decode_address(buf, (unsigned int)action->handler);
|
||||
printk(", %s", buf);
|
||||
verbose_printk(", %s", buf);
|
||||
}
|
||||
printk("\n");
|
||||
verbose_printk("\n");
|
||||
unlock:
|
||||
spin_unlock_irqrestore(&irq_desc[i].lock, flags);
|
||||
}
|
||||
}
|
||||
|
||||
decode_address(buf, fp->rete);
|
||||
printk(KERN_NOTICE " RETE: %s\n", buf);
|
||||
verbose_printk(KERN_NOTICE " RETE: %s\n", buf);
|
||||
decode_address(buf, fp->retn);
|
||||
printk(KERN_NOTICE " RETN: %s\n", buf);
|
||||
verbose_printk(KERN_NOTICE " RETN: %s\n", buf);
|
||||
decode_address(buf, fp->retx);
|
||||
printk(KERN_NOTICE " RETX: %s\n", buf);
|
||||
verbose_printk(KERN_NOTICE " RETX: %s\n", buf);
|
||||
decode_address(buf, fp->rets);
|
||||
printk(KERN_NOTICE " RETS: %s\n", buf);
|
||||
verbose_printk(KERN_NOTICE " RETS: %s\n", buf);
|
||||
decode_address(buf, fp->pc);
|
||||
printk(KERN_NOTICE " PC : %s\n", buf);
|
||||
verbose_printk(KERN_NOTICE " PC : %s\n", buf);
|
||||
|
||||
if (((long)fp->seqstat & SEQSTAT_EXCAUSE) &&
|
||||
(((long)fp->seqstat & SEQSTAT_EXCAUSE) != VEC_HWERR)) {
|
||||
decode_address(buf, saved_dcplb_fault_addr);
|
||||
printk(KERN_NOTICE "DCPLB_FAULT_ADDR: %s\n", buf);
|
||||
verbose_printk(KERN_NOTICE "DCPLB_FAULT_ADDR: %s\n", buf);
|
||||
decode_address(buf, saved_icplb_fault_addr);
|
||||
printk(KERN_NOTICE "ICPLB_FAULT_ADDR: %s\n", buf);
|
||||
verbose_printk(KERN_NOTICE "ICPLB_FAULT_ADDR: %s\n", buf);
|
||||
}
|
||||
|
||||
printk(KERN_NOTICE "\n" KERN_NOTICE "PROCESSOR STATE:\n");
|
||||
printk(KERN_NOTICE " R0 : %08lx R1 : %08lx R2 : %08lx R3 : %08lx\n",
|
||||
verbose_printk(KERN_NOTICE "\n" KERN_NOTICE "PROCESSOR STATE:\n");
|
||||
verbose_printk(KERN_NOTICE " R0 : %08lx R1 : %08lx R2 : %08lx R3 : %08lx\n",
|
||||
fp->r0, fp->r1, fp->r2, fp->r3);
|
||||
printk(KERN_NOTICE " R4 : %08lx R5 : %08lx R6 : %08lx R7 : %08lx\n",
|
||||
verbose_printk(KERN_NOTICE " R4 : %08lx R5 : %08lx R6 : %08lx R7 : %08lx\n",
|
||||
fp->r4, fp->r5, fp->r6, fp->r7);
|
||||
printk(KERN_NOTICE " P0 : %08lx P1 : %08lx P2 : %08lx P3 : %08lx\n",
|
||||
verbose_printk(KERN_NOTICE " P0 : %08lx P1 : %08lx P2 : %08lx P3 : %08lx\n",
|
||||
fp->p0, fp->p1, fp->p2, fp->p3);
|
||||
printk(KERN_NOTICE " P4 : %08lx P5 : %08lx FP : %08lx SP : %08lx\n",
|
||||
verbose_printk(KERN_NOTICE " P4 : %08lx P5 : %08lx FP : %08lx SP : %08lx\n",
|
||||
fp->p4, fp->p5, fp->fp, (long)fp);
|
||||
printk(KERN_NOTICE " LB0: %08lx LT0: %08lx LC0: %08lx\n",
|
||||
verbose_printk(KERN_NOTICE " LB0: %08lx LT0: %08lx LC0: %08lx\n",
|
||||
fp->lb0, fp->lt0, fp->lc0);
|
||||
printk(KERN_NOTICE " LB1: %08lx LT1: %08lx LC1: %08lx\n",
|
||||
verbose_printk(KERN_NOTICE " LB1: %08lx LT1: %08lx LC1: %08lx\n",
|
||||
fp->lb1, fp->lt1, fp->lc1);
|
||||
printk(KERN_NOTICE " B0 : %08lx L0 : %08lx M0 : %08lx I0 : %08lx\n",
|
||||
verbose_printk(KERN_NOTICE " B0 : %08lx L0 : %08lx M0 : %08lx I0 : %08lx\n",
|
||||
fp->b0, fp->l0, fp->m0, fp->i0);
|
||||
printk(KERN_NOTICE " B1 : %08lx L1 : %08lx M1 : %08lx I1 : %08lx\n",
|
||||
verbose_printk(KERN_NOTICE " B1 : %08lx L1 : %08lx M1 : %08lx I1 : %08lx\n",
|
||||
fp->b1, fp->l1, fp->m1, fp->i1);
|
||||
printk(KERN_NOTICE " B2 : %08lx L2 : %08lx M2 : %08lx I2 : %08lx\n",
|
||||
verbose_printk(KERN_NOTICE " B2 : %08lx L2 : %08lx M2 : %08lx I2 : %08lx\n",
|
||||
fp->b2, fp->l2, fp->m2, fp->i2);
|
||||
printk(KERN_NOTICE " B3 : %08lx L3 : %08lx M3 : %08lx I3 : %08lx\n",
|
||||
verbose_printk(KERN_NOTICE " B3 : %08lx L3 : %08lx M3 : %08lx I3 : %08lx\n",
|
||||
fp->b3, fp->l3, fp->m3, fp->i3);
|
||||
printk(KERN_NOTICE "A0.w: %08lx A0.x: %08lx A1.w: %08lx A1.x: %08lx\n",
|
||||
verbose_printk(KERN_NOTICE "A0.w: %08lx A0.x: %08lx A1.w: %08lx A1.x: %08lx\n",
|
||||
fp->a0w, fp->a0x, fp->a1w, fp->a1x);
|
||||
|
||||
printk(KERN_NOTICE "USP : %08lx ASTAT: %08lx\n",
|
||||
verbose_printk(KERN_NOTICE "USP : %08lx ASTAT: %08lx\n",
|
||||
rdusp(), fp->astat);
|
||||
|
||||
printk(KERN_NOTICE "\n");
|
||||
verbose_printk(KERN_NOTICE "\n");
|
||||
#endif
|
||||
}
|
||||
|
||||
#ifdef CONFIG_SYS_BFIN_SPINLOCK_L1
|
||||
|
|
|
|||
Loading…
Reference in a new issue