diff options
Diffstat (limited to 'arch/blackfin/kernel')
| -rw-r--r-- | arch/blackfin/kernel/bfin_dma_5xx.c | 1 | ||||
| -rw-r--r-- | arch/blackfin/kernel/bfin_ksyms.c | 7 | ||||
| -rw-r--r-- | arch/blackfin/kernel/cplbinit.c | 73 | ||||
| -rw-r--r-- | arch/blackfin/kernel/early_printk.c | 3 | ||||
| -rw-r--r-- | arch/blackfin/kernel/process.c | 66 | ||||
| -rw-r--r-- | arch/blackfin/kernel/setup.c | 9 | ||||
| -rw-r--r-- | arch/blackfin/kernel/traps.c | 147 |
7 files changed, 136 insertions, 170 deletions
diff --git a/arch/blackfin/kernel/bfin_dma_5xx.c b/arch/blackfin/kernel/bfin_dma_5xx.c index 503eef4c7fec..b54446055a43 100644 --- a/arch/blackfin/kernel/bfin_dma_5xx.c +++ b/arch/blackfin/kernel/bfin_dma_5xx.c @@ -436,6 +436,7 @@ unsigned long get_dma_curr_desc_ptr(unsigned int channel) return dma_ch[channel].regs->curr_desc_ptr; } +EXPORT_SYMBOL(get_dma_curr_desc_ptr); unsigned long get_dma_curr_addr(unsigned int channel) { diff --git a/arch/blackfin/kernel/bfin_ksyms.c b/arch/blackfin/kernel/bfin_ksyms.c index 2198afe40f33..0bfbb269e350 100644 --- a/arch/blackfin/kernel/bfin_ksyms.c +++ b/arch/blackfin/kernel/bfin_ksyms.c @@ -37,9 +37,6 @@ /* platform dependent support */ EXPORT_SYMBOL(__ioremap); -EXPORT_SYMBOL(strcmp); -EXPORT_SYMBOL(strncmp); -EXPORT_SYMBOL(dump_thread); EXPORT_SYMBOL(ip_fast_csum); @@ -51,6 +48,7 @@ EXPORT_SYMBOL(__down_trylock); EXPORT_SYMBOL(__down_interruptible); EXPORT_SYMBOL(is_in_rom); +EXPORT_SYMBOL(bfin_return_from_exception); /* Networking helper routines. */ EXPORT_SYMBOL(csum_partial_copy); @@ -60,13 +58,11 @@ EXPORT_SYMBOL(csum_partial_copy); * their interface isn't gonna change any time soon now, so * it's OK to leave it out of version control. */ -EXPORT_SYMBOL(strcpy); EXPORT_SYMBOL(memcpy); EXPORT_SYMBOL(memset); EXPORT_SYMBOL(memcmp); EXPORT_SYMBOL(memmove); EXPORT_SYMBOL(memchr); -EXPORT_SYMBOL(get_wchan); /* * libgcc functions - functions that are used internally by the @@ -102,6 +98,7 @@ EXPORT_SYMBOL(outsw); EXPORT_SYMBOL(insw); EXPORT_SYMBOL(outsl); EXPORT_SYMBOL(insl); +EXPORT_SYMBOL(insl_16); EXPORT_SYMBOL(irq_flags); EXPORT_SYMBOL(iounmap); EXPORT_SYMBOL(blackfin_dcache_invalidate_range); diff --git a/arch/blackfin/kernel/cplbinit.c b/arch/blackfin/kernel/cplbinit.c index f2db6a5e2b5b..6320bc45fbba 100644 --- a/arch/blackfin/kernel/cplbinit.c +++ b/arch/blackfin/kernel/cplbinit.c @@ -26,29 +26,22 @@ #include <asm/cplb.h> #include <asm/cplbinit.h> -u_long icplb_table[MAX_CPLBS+1]; -u_long dcplb_table[MAX_CPLBS+1]; +u_long icplb_table[MAX_CPLBS + 1]; +u_long dcplb_table[MAX_CPLBS + 1]; #ifdef CONFIG_CPLB_SWITCH_TAB_L1 -u_long ipdt_table[MAX_SWITCH_I_CPLBS+1]__attribute__((l1_data)); -u_long dpdt_table[MAX_SWITCH_D_CPLBS+1]__attribute__((l1_data)); - -#ifdef CONFIG_CPLB_INFO -u_long ipdt_swapcount_table[MAX_SWITCH_I_CPLBS]__attribute__((l1_data)); -u_long dpdt_swapcount_table[MAX_SWITCH_D_CPLBS]__attribute__((l1_data)); -#endif /* CONFIG_CPLB_INFO */ - +# define PDT_ATTR __attribute__((l1_data)) #else +# define PDT_ATTR +#endif -u_long ipdt_table[MAX_SWITCH_I_CPLBS+1]; -u_long dpdt_table[MAX_SWITCH_D_CPLBS+1]; +u_long ipdt_table[MAX_SWITCH_I_CPLBS + 1] PDT_ATTR; +u_long dpdt_table[MAX_SWITCH_D_CPLBS + 1] PDT_ATTR; #ifdef CONFIG_CPLB_INFO -u_long ipdt_swapcount_table[MAX_SWITCH_I_CPLBS]; -u_long dpdt_swapcount_table[MAX_SWITCH_D_CPLBS]; -#endif /* CONFIG_CPLB_INFO */ - -#endif /*CONFIG_CPLB_SWITCH_TAB_L1*/ +u_long ipdt_swapcount_table[MAX_SWITCH_I_CPLBS] PDT_ATTR; +u_long dpdt_swapcount_table[MAX_SWITCH_D_CPLBS] PDT_ATTR; +#endif struct s_cplb { struct cplb_tab init_i; @@ -71,7 +64,7 @@ static struct cplb_desc cplb_data[] = { #else .valid = 0, #endif - .name = "ZERO Pointer Saveguard", + .name = "Zero Pointer Guard Page", }, { .start = L1_CODE_START, @@ -102,20 +95,20 @@ static struct cplb_desc cplb_data[] = { .end = 0, /* dynamic */ .psize = 0, .attr = INITIAL_T | SWITCH_T | I_CPLB | D_CPLB, - .i_conf = SDRAM_IGENERIC, - .d_conf = SDRAM_DGENERIC, + .i_conf = SDRAM_IGENERIC, + .d_conf = SDRAM_DGENERIC, .valid = 1, - .name = "SDRAM Kernel", + .name = "Kernel Memory", }, { .start = 0, /* dynamic */ .end = 0, /* dynamic */ .psize = 0, .attr = INITIAL_T | SWITCH_T | D_CPLB, - .i_conf = SDRAM_IGENERIC, - .d_conf = SDRAM_DNON_CHBL, + .i_conf = SDRAM_IGENERIC, + .d_conf = SDRAM_DNON_CHBL, .valid = 1, - .name = "SDRAM RAM MTD", + .name = "uClinux MTD Memory", }, { .start = 0, /* dynamic */ @@ -124,7 +117,7 @@ static struct cplb_desc cplb_data[] = { .attr = INITIAL_T | SWITCH_T | D_CPLB, .d_conf = SDRAM_DNON_CHBL, .valid = 1, - .name = "SDRAM Uncached DMA ZONE", + .name = "Uncached DMA Zone", }, { .start = 0, /* dynamic */ @@ -134,7 +127,7 @@ static struct cplb_desc cplb_data[] = { .i_conf = 0, /* dynamic */ .d_conf = 0, /* dynamic */ .valid = 1, - .name = "SDRAM Reserved Memory", + .name = "Reserved Memory", }, { .start = ASYNC_BANK0_BASE, @@ -143,14 +136,14 @@ static struct cplb_desc cplb_data[] = { .attr = SWITCH_T | D_CPLB, .d_conf = SDRAM_EBIU, .valid = 1, - .name = "ASYNC Memory", + .name = "Asynchronous Memory Banks", }, { -#if defined(CONFIG_BF561) - .start = L2_SRAM, - .end = L2_SRAM_END, +#ifdef L2_START + .start = L2_START, + .end = L2_START + L2_LENGTH, .psize = SIZE_1M, - .attr = SWITCH_T | D_CPLB, + .attr = SWITCH_T | I_CPLB | D_CPLB, .i_conf = L2_MEMORY, .d_conf = L2_MEMORY, .valid = 1, @@ -158,13 +151,23 @@ static struct cplb_desc cplb_data[] = { .valid = 0, #endif .name = "L2 Memory", - } + }, + { + .start = BOOT_ROM_START, + .end = BOOT_ROM_START + BOOT_ROM_LENGTH, + .psize = SIZE_1M, + .attr = SWITCH_T | I_CPLB | D_CPLB, + .i_conf = SDRAM_IGENERIC, + .d_conf = SDRAM_DGENERIC, + .valid = 1, + .name = "On-Chip BootROM", + }, }; static u16 __init lock_kernel_check(u32 start, u32 end) { - if ((start <= (u32) _stext && end >= (u32) _end) - || (start >= (u32) _stext && end <= (u32) _end)) + if ((end <= (u32) _end && end >= (u32)_stext) || + (start <= (u32) _end && start >= (u32)_stext)) return IN_KERNEL; return 0; } @@ -350,7 +353,7 @@ void __init generate_cpl_tables(void) else cplb_data[RES_MEM].i_conf = SDRAM_INON_CHBL; - for (i = ZERO_P; i <= L2_MEM; i++) { + for (i = ZERO_P; i < ARRAY_SIZE(cplb_data); ++i) { if (!cplb_data[i].valid) continue; diff --git a/arch/blackfin/kernel/early_printk.c b/arch/blackfin/kernel/early_printk.c index 6ec518a81113..724f4a5a1d46 100644 --- a/arch/blackfin/kernel/early_printk.c +++ b/arch/blackfin/kernel/early_printk.c @@ -205,7 +205,8 @@ asmlinkage void __init early_trap_c(struct pt_regs *fp, void *retaddr) if (likely(early_console == NULL)) setup_early_printk(DEFAULT_EARLY_PORT); - dump_bfin_regs(fp, retaddr); + dump_bfin_mem((void *)fp->retx); + show_regs(fp); dump_bfin_trace_buffer(); panic("Died early"); diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c index 9124467651c4..5bf15125f0d6 100644 --- a/arch/blackfin/kernel/process.c +++ b/arch/blackfin/kernel/process.c @@ -134,27 +134,6 @@ void cpu_idle(void) } } -void show_regs(struct pt_regs *regs) -{ - printk(KERN_NOTICE "\n"); - printk(KERN_NOTICE - "PC: %08lu Status: %04lu SysStatus: %04lu RETS: %08lu\n", - regs->pc, regs->astat, regs->seqstat, regs->rets); - printk(KERN_NOTICE - "A0.x: %08lx A0.w: %08lx A1.x: %08lx A1.w: %08lx\n", - regs->a0x, regs->a0w, regs->a1x, regs->a1w); - printk(KERN_NOTICE "P0: %08lx P1: %08lx P2: %08lx P3: %08lx\n", - regs->p0, regs->p1, regs->p2, regs->p3); - printk(KERN_NOTICE "P4: %08lx P5: %08lx\n", regs->p4, regs->p5); - printk(KERN_NOTICE "R0: %08lx R1: %08lx R2: %08lx R3: %08lx\n", - regs->r0, regs->r1, regs->r2, regs->r3); - printk(KERN_NOTICE "R4: %08lx R5: %08lx R6: %08lx R7: %08lx\n", - regs->r4, regs->r5, regs->r6, regs->r7); - - if (!regs->ipend) - printk(KERN_NOTICE "USP: %08lx\n", rdusp()); -} - /* Fill in the fpu structure for a core dump. */ int dump_fpu(struct pt_regs *regs, elf_fpregset_t * fpregs) @@ -239,51 +218,6 @@ copy_thread(int nr, unsigned long clone_flags, } /* - * fill in the user structure for a core dump.. - */ -void dump_thread(struct pt_regs *regs, struct user *dump) -{ - dump->magic = CMAGIC; - dump->start_code = 0; - dump->start_stack = rdusp() & ~(PAGE_SIZE - 1); - dump->u_tsize = ((unsigned long)current->mm->end_code) >> PAGE_SHIFT; - dump->u_dsize = ((unsigned long)(current->mm->brk + - (PAGE_SIZE - 1))) >> PAGE_SHIFT; - dump->u_dsize -= dump->u_tsize; - dump->u_ssize = 0; - - if (dump->start_stack < TASK_SIZE) - dump->u_ssize = - ((unsigned long)(TASK_SIZE - - dump->start_stack)) >> PAGE_SHIFT; - - dump->u_ar0 = (struct user_regs_struct *)((int)&dump->regs - (int)dump); - - dump->regs.r0 = regs->r0; - dump->regs.r1 = regs->r1; - dump->regs.r2 = regs->r2; - dump->regs.r3 = regs->r3; - dump->regs.r4 = regs->r4; - dump->regs.r5 = regs->r5; - dump->regs.r6 = regs->r6; - dump->regs.r7 = regs->r7; - dump->regs.p0 = regs->p0; - dump->regs.p1 = regs->p1; - dump->regs.p2 = regs->p2; - dump->regs.p3 = regs->p3; - dump->regs.p4 = regs->p4; - dump->regs.p5 = regs->p5; - dump->regs.orig_p0 = regs->orig_p0; - dump->regs.a0w = regs->a0w; - dump->regs.a1w = regs->a1w; - dump->regs.a0x = regs->a0x; - dump->regs.a1x = regs->a1x; - dump->regs.rets = regs->rets; - dump->regs.astat = regs->astat; - dump->regs.pc = regs->pc; -} - -/* * sys_execve() executes a new program. */ diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c index 934234f43839..d2822010b7ce 100644 --- a/arch/blackfin/kernel/setup.c +++ b/arch/blackfin/kernel/setup.c @@ -43,6 +43,7 @@ #include <asm/cacheflush.h> #include <asm/blackfin.h> #include <asm/cplbinit.h> +#include <asm/div64.h> #include <asm/fixed_code.h> #include <asm/early_printk.h> @@ -504,13 +505,17 @@ EXPORT_SYMBOL(get_sclk); unsigned long sclk_to_usecs(unsigned long sclk) { - return (USEC_PER_SEC * (u64)sclk) / get_sclk(); + u64 tmp = USEC_PER_SEC * (u64)sclk; + do_div(tmp, get_sclk()); + return tmp; } EXPORT_SYMBOL(sclk_to_usecs); unsigned long usecs_to_sclk(unsigned long usecs) { - return (get_sclk() * (u64)usecs) / USEC_PER_SEC; + u64 tmp = get_sclk() * (u64)usecs; + do_div(tmp, USEC_PER_SEC); + return tmp; } EXPORT_SYMBOL(usecs_to_sclk); diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c index cfa05436c972..21a55ef19cbd 100644 --- a/arch/blackfin/kernel/traps.c +++ b/arch/blackfin/kernel/traps.c @@ -158,7 +158,7 @@ static void decode_address(char *buf, unsigned long address) } /* we were unable to find this address anywhere */ - sprintf(buf, "[<0x%p>]", (void *)address); + sprintf(buf, "<0x%p> /* unknown address */", (void *)address); done: write_unlock_irqrestore(&tasklist_lock, flags); @@ -169,7 +169,9 @@ asmlinkage void double_fault_c(struct pt_regs *fp) console_verbose(); oops_in_progress = 1; printk(KERN_EMERG "\n" KERN_EMERG "Double Fault\n"); - dump_bfin_regs(fp, (void *)fp->retx); + dump_bfin_process(fp); + dump_bfin_mem((void *)fp->retx); + show_regs(fp); panic("Double Fault - unrecoverable event\n"); } @@ -250,7 +252,7 @@ asmlinkage void trap_c(struct pt_regs *fp) case VEC_EXCPT03: info.si_code = SEGV_STACKFLOW; sig = SIGSEGV; - printk(KERN_NOTICE EXC_0x03); + printk(KERN_NOTICE EXC_0x03(KERN_NOTICE)); CHK_DEBUGGER_TRAP(); break; /* 0x04 - User Defined, Caught by default */ @@ -279,7 +281,7 @@ asmlinkage void trap_c(struct pt_regs *fp) case VEC_OVFLOW: info.si_code = TRAP_TRACEFLOW; sig = SIGTRAP; - printk(KERN_NOTICE EXC_0x11); + printk(KERN_NOTICE EXC_0x11(KERN_NOTICE)); CHK_DEBUGGER_TRAP(); break; /* 0x12 - Reserved, Caught by default */ @@ -301,36 +303,35 @@ asmlinkage void trap_c(struct pt_regs *fp) case VEC_UNDEF_I: info.si_code = ILL_ILLOPC; sig = SIGILL; - printk(KERN_NOTICE EXC_0x21); + printk(KERN_NOTICE EXC_0x21(KERN_NOTICE)); CHK_DEBUGGER_TRAP(); break; /* 0x22 - Illegal Instruction Combination, handled here */ case VEC_ILGAL_I: info.si_code = ILL_ILLPARAOP; sig = SIGILL; - printk(KERN_NOTICE EXC_0x22); + printk(KERN_NOTICE EXC_0x22(KERN_NOTICE)); CHK_DEBUGGER_TRAP(); break; - /* 0x23 - Data CPLB Protection Violation, - normal case is handled in _cplb_hdr */ + /* 0x23 - Data CPLB protection violation, handled here */ case VEC_CPLB_VL: info.si_code = ILL_CPLB_VI; - sig = SIGILL; - printk(KERN_NOTICE EXC_0x23); + sig = SIGBUS; + printk(KERN_NOTICE EXC_0x23(KERN_NOTICE)); CHK_DEBUGGER_TRAP(); break; /* 0x24 - Data access misaligned, handled here */ case VEC_MISALI_D: info.si_code = BUS_ADRALN; sig = SIGBUS; - printk(KERN_NOTICE EXC_0x24); + printk(KERN_NOTICE EXC_0x24(KERN_NOTICE)); CHK_DEBUGGER_TRAP(); break; /* 0x25 - Unrecoverable Event, handled here */ case VEC_UNCOV: info.si_code = ILL_ILLEXCPT; sig = SIGILL; - printk(KERN_NOTICE EXC_0x25); + printk(KERN_NOTICE EXC_0x25(KERN_NOTICE)); CHK_DEBUGGER_TRAP(); break; /* 0x26 - Data CPLB Miss, normal case is handled in _cplb_hdr, @@ -338,7 +339,7 @@ asmlinkage void trap_c(struct pt_regs *fp) case VEC_CPLB_M: info.si_code = BUS_ADRALN; sig = SIGBUS; - printk(KERN_NOTICE EXC_0x26); + printk(KERN_NOTICE EXC_0x26(KERN_NOTICE)); CHK_DEBUGGER_TRAP(); break; /* 0x27 - Data CPLB Multiple Hits - Linux Trap Zero, handled here */ @@ -349,7 +350,7 @@ asmlinkage void trap_c(struct pt_regs *fp) printk(KERN_NOTICE "NULL pointer access (probably)\n"); #else sig = SIGILL; - printk(KERN_NOTICE EXC_0x27); + printk(KERN_NOTICE EXC_0x27(KERN_NOTICE)); #endif CHK_DEBUGGER_TRAP(); break; @@ -357,7 +358,7 @@ asmlinkage void trap_c(struct pt_regs *fp) case VEC_WATCH: info.si_code = TRAP_WATCHPT; sig = SIGTRAP; - pr_debug(EXC_0x28); + pr_debug(EXC_0x28(KERN_DEBUG)); CHK_DEBUGGER_TRAP_MAYBE(); /* Check if this is a watchpoint in kernel space */ if (fp->ipend & 0xffc0) @@ -379,22 +380,21 @@ asmlinkage void trap_c(struct pt_regs *fp) case VEC_MISALI_I: info.si_code = BUS_ADRALN; sig = SIGBUS; - printk(KERN_NOTICE EXC_0x2A); + printk(KERN_NOTICE EXC_0x2A(KERN_NOTICE)); CHK_DEBUGGER_TRAP(); break; - /* 0x2B - Instruction CPLB protection Violation, - handled in _cplb_hdr */ + /* 0x2B - Instruction CPLB protection violation, handled here */ case VEC_CPLB_I_VL: info.si_code = ILL_CPLB_VI; - sig = SIGILL; - printk(KERN_NOTICE EXC_0x2B); + sig = SIGBUS; + printk(KERN_NOTICE EXC_0x2B(KERN_NOTICE)); CHK_DEBUGGER_TRAP(); break; /* 0x2C - Instruction CPLB miss, handled in _cplb_hdr */ case VEC_CPLB_I_M: info.si_code = ILL_CPLB_MISS; sig = SIGBUS; - printk(KERN_NOTICE EXC_0x2C); + printk(KERN_NOTICE EXC_0x2C(KERN_NOTICE)); CHK_DEBUGGER_TRAP(); break; /* 0x2D - Instruction CPLB Multiple Hits, handled here */ @@ -405,7 +405,7 @@ asmlinkage void trap_c(struct pt_regs *fp) printk(KERN_NOTICE "Jump to address 0 - 0x0fff\n"); #else sig = SIGILL; - printk(KERN_NOTICE EXC_0x2D); + printk(KERN_NOTICE EXC_0x2D(KERN_NOTICE)); #endif CHK_DEBUGGER_TRAP(); break; @@ -413,7 +413,7 @@ asmlinkage void trap_c(struct pt_regs *fp) case VEC_ILL_RES: info.si_code = ILL_PRVOPC; sig = SIGILL; - printk(KERN_NOTICE EXC_0x2E); + printk(KERN_NOTICE EXC_0x2E(KERN_NOTICE)); CHK_DEBUGGER_TRAP(); break; /* 0x2F - Reserved, Caught by default */ @@ -446,7 +446,9 @@ asmlinkage void trap_c(struct pt_regs *fp) if (sig != SIGTRAP) { unsigned long stack; - dump_bfin_regs(fp, (void *)fp->retx); + dump_bfin_process(fp); + dump_bfin_mem((void *)fp->retx); + show_regs(fp); /* Print out the trace buffer if it makes sense */ #ifndef CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE @@ -460,22 +462,25 @@ asmlinkage void trap_c(struct pt_regs *fp) show_stack(current, &stack); if (oops_in_progress) { #ifndef CONFIG_ACCESS_CHECK - printk(KERN_EMERG "Hey - dork - please turn on " - "CONFIG_ACCESS_CHECK\n"); + printk(KERN_EMERG "Please turn on " + "CONFIG_ACCESS_CHECK\n"); #endif panic("Kernel exception"); } - - /* Ensure that bad return addresses don't end up in an infinite - * loop, due to speculative loads/reads - */ - fp->pc = SAFE_USER_INSTRUCTION; } + info.si_signo = sig; info.si_errno = 0; info.si_addr = (void *)fp->pc; force_sig_info(sig, &info, current); + /* Ensure that bad return addresses don't end up in an infinite + * loop, due to speculative loads/reads. This needs to be done after + * the signal has been sent. + */ + if (trapnr == VEC_CPLB_I_M && sig != SIGTRAP) + fp->pc = SAFE_USER_INSTRUCTION; + trace_buffer_restore(j); return; } @@ -600,37 +605,48 @@ void dump_stack(void) show_stack(current, &stack); trace_buffer_restore(tflags); } - EXPORT_SYMBOL(dump_stack); -void dump_bfin_regs(struct pt_regs *fp, void *retaddr) +void dump_bfin_process(struct pt_regs *fp) { - char buf [150]; + /* 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"); + + if (context & 0x0020) + printk(KERN_NOTICE "Deferred excecption or HW Error context\n"); + else if (context & 0x3FC0) + printk(KERN_NOTICE "Interrupt context\n"); + else if (context & 0x4000) + printk(KERN_NOTICE "Deferred Interrupt context\n"); + else if (context & 0x8000) + printk(KERN_NOTICE "Kernel process context\n"); + + if (current->pid && current->mm) { + printk(KERN_NOTICE "CURRENT PROCESS:\n"); + printk(KERN_NOTICE "COMM=%s PID=%d\n", + current->comm, current->pid); + + 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, + (void *)current->mm->end_code, + (void *)current->mm->start_data, + (void *)current->mm->end_data, + (void *)current->mm->end_data, + (void *)current->mm->brk, + (void *)current->mm->start_stack); + } else + printk(KERN_NOTICE "\n" KERN_NOTICE + "No Valid process in current context\n"); +} - if (!oops_in_progress) { - if (current->pid && current->mm) { - printk(KERN_NOTICE "\n" KERN_NOTICE "CURRENT PROCESS:\n"); - printk(KERN_NOTICE "COMM=%s PID=%d\n", - current->comm, current->pid); - - 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, - (void *)current->mm->end_code, - (void *)current->mm->start_data, - (void *)current->mm->end_data, - (void *)current->mm->end_data, - (void *)current->mm->brk, - (void *)current->mm->start_stack); - } else { - printk (KERN_NOTICE "\n" KERN_NOTICE - "No Valid pid - Either things are really messed up," - " or you are in the kernel\n"); - } - } else { - printk(KERN_NOTICE "Kernel or interrupt exception\n"); - } +void dump_bfin_mem(void *retaddr) +{ if (retaddr >= (void *)FIXED_CODE_START && retaddr < (void *)physical_mem_end #if L1_CODE_LENGTH != 0 @@ -671,8 +687,13 @@ void dump_bfin_regs(struct pt_regs *fp, void *retaddr) printk("\n"); } else printk("\n" KERN_NOTICE - "Cannot look at the [PC] for it is" - " in unreadable memory - sorry\n"); + "Cannot look at the [PC] <%p> for it is" + " in unreadable memory - sorry\n", retaddr); +} + +void show_regs(struct pt_regs *fp) +{ + char buf [150]; printk(KERN_NOTICE "\n" KERN_NOTICE "SEQUENCER STATUS:\n"); printk(KERN_NOTICE " SEQSTAT: %08lx IPEND: %04lx SYSCFG: %04lx\n", @@ -686,6 +707,8 @@ void dump_bfin_regs(struct pt_regs *fp, void *retaddr) printk(KERN_NOTICE " RETX: %s\n", buf); decode_address(buf, fp->rets); printk(KERN_NOTICE " RETS: %s\n", buf); + decode_address(buf, fp->pc); + printk(KERN_NOTICE " PC: %s\n", buf); if ((long)fp->seqstat & SEQSTAT_EXCAUSE) { decode_address(buf, bfin_read_DCPLB_FAULT_ADDR()); @@ -800,7 +823,9 @@ void panic_cplb_error(int cplb_panic, struct pt_regs *fp) printk(KERN_EMERG "DCPLB_FAULT_ADDR=%p\n", (void *)bfin_read_DCPLB_FAULT_ADDR()); printk(KERN_EMERG "ICPLB_FAULT_ADDR=%p\n", (void *)bfin_read_ICPLB_FAULT_ADDR()); - dump_bfin_regs(fp, (void *)fp->retx); + dump_bfin_process(fp); + dump_bfin_mem((void *)fp->retx); + show_regs(fp); dump_stack(); panic("Unrecoverable event\n"); } |