X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fsparc64%2Fkernel%2Ftraps.c;h=9eeda7805f882b0bbbe7f8aa07816f0ffc0a788d;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=563db528e031830cdcded747e7fa2ecae7e0ec31;hpb=43bc926fffd92024b46cafaf7350d669ba9ca884;p=linux-2.6.git diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c index 563db528e..9eeda7805 100644 --- a/arch/sparc64/kernel/traps.c +++ b/arch/sparc64/kernel/traps.c @@ -9,9 +9,8 @@ * I like traps on v9, :)))) */ -#include #include -#include /* for jiffies */ +#include #include #include #include @@ -42,6 +41,7 @@ #ifdef CONFIG_KMOD #include #endif +#include ATOMIC_NOTIFIER_HEAD(sparc64die_chain); @@ -87,6 +87,7 @@ static void dump_tl1_traplog(struct tl1_traplog *p) i + 1, p->trapstack[i].tstate, p->trapstack[i].tpc, p->trapstack[i].tnpc, p->trapstack[i].tt); + print_symbol("TRAPLOG: TPC<%s>\n", p->trapstack[i].tpc); } } @@ -807,7 +808,8 @@ extern unsigned int cheetah_deferred_trap_vector[], cheetah_deferred_trap_vector void __init cheetah_ecache_flush_init(void) { unsigned long largest_size, smallest_linesize, order, ver; - int node, i, instance; + struct device_node *dp; + int i, instance, sz; /* Scan all cpu device tree nodes, note two values: * 1) largest E-cache size @@ -817,14 +819,14 @@ void __init cheetah_ecache_flush_init(void) smallest_linesize = ~0UL; instance = 0; - while (!cpu_find_by_instance(instance, &node, NULL)) { + while (!cpu_find_by_instance(instance, &dp, NULL)) { unsigned long val; - val = prom_getintdefault(node, "ecache-size", - (2 * 1024 * 1024)); + val = of_getintprop_default(dp, "ecache-size", + (2 * 1024 * 1024)); if (val > largest_size) largest_size = val; - val = prom_getintdefault(node, "ecache-line-size", 64); + val = of_getintprop_default(dp, "ecache-line-size", 64); if (val < smallest_linesize) smallest_linesize = val; instance++; @@ -849,16 +851,16 @@ void __init cheetah_ecache_flush_init(void) } /* Now allocate error trap reporting scoreboard. */ - node = NR_CPUS * (2 * sizeof(struct cheetah_err_info)); + sz = NR_CPUS * (2 * sizeof(struct cheetah_err_info)); for (order = 0; order < MAX_ORDER; order++) { - if ((PAGE_SIZE << order) >= node) + if ((PAGE_SIZE << order) >= sz) break; } cheetah_error_log = (struct cheetah_err_info *) __get_free_pages(GFP_KERNEL, order); if (!cheetah_error_log) { prom_printf("cheetah_ecache_flush_init: Failed to allocate " - "error logging scoreboard (%d bytes).\n", node); + "error logging scoreboard (%d bytes).\n", sz); prom_halt(); } memset(cheetah_error_log, 0, PAGE_SIZE << order); @@ -1133,6 +1135,9 @@ static void cheetah_log_errors(struct pt_regs *regs, struct cheetah_err_info *in printk("%s" "ERROR(%d): TPC[%lx] TNPC[%lx] O7[%lx] TSTATE[%lx]\n", (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), regs->tpc, regs->tnpc, regs->u_regs[UREG_I7], regs->tstate); + printk("%s" "ERROR(%d): ", + (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id()); + print_symbol("TPC<%s>\n", regs->tpc); printk("%s" "ERROR(%d): M_SYND(%lx), E_SYND(%lx)%s%s\n", (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), (afsr & CHAFSR_M_SYNDROME) >> CHAFSR_M_SYNDROME_SHIFT, @@ -1740,6 +1745,7 @@ void cheetah_plus_parity_error(int type, struct pt_regs *regs) smp_processor_id(), (type & 0x1) ? 'I' : 'D', regs->tpc); + print_symbol(KERN_EMERG "TPC<%s>\n", regs->tpc); panic("Irrecoverable Cheetah+ parity error."); } @@ -1747,6 +1753,7 @@ void cheetah_plus_parity_error(int type, struct pt_regs *regs) smp_processor_id(), (type & 0x1) ? 'I' : 'D', regs->tpc); + print_symbol(KERN_WARNING "TPC<%s>\n", regs->tpc); } struct sun4v_error_entry { @@ -1866,6 +1873,16 @@ void sun4v_resum_error(struct pt_regs *regs, unsigned long offset) put_cpu(); + if (ent->err_type == SUN4V_ERR_TYPE_WARNING_RES) { + /* If err_type is 0x4, it's a powerdown request. Do + * not do the usual resumable error log because that + * makes it look like some abnormal error. + */ + printk(KERN_INFO "Power down request...\n"); + kill_cad_pid(SIGINT, 1); + return; + } + sun4v_log_error(regs, &local_copy, cpu, KERN_ERR "RESUMABLE ERROR", &sun4v_resum_oflow_cnt); @@ -1945,6 +1962,7 @@ void sun4v_itlb_error_report(struct pt_regs *regs, int tl) printk(KERN_EMERG "SUN4V-ITLB: Error at TPC[%lx], tl %d\n", regs->tpc, tl); + print_symbol(KERN_EMERG "SUN4V-ITLB: TPC<%s>\n", regs->tpc); printk(KERN_EMERG "SUN4V-ITLB: vaddr[%lx] ctx[%lx] " "pte[%lx] error[%lx]\n", sun4v_err_itlb_vaddr, sun4v_err_itlb_ctx, @@ -1965,6 +1983,7 @@ void sun4v_dtlb_error_report(struct pt_regs *regs, int tl) printk(KERN_EMERG "SUN4V-DTLB: Error at TPC[%lx], tl %d\n", regs->tpc, tl); + print_symbol(KERN_EMERG "SUN4V-DTLB: TPC<%s>\n", regs->tpc); printk(KERN_EMERG "SUN4V-DTLB: vaddr[%lx] ctx[%lx] " "pte[%lx] error[%lx]\n", sun4v_err_dtlb_vaddr, sun4v_err_dtlb_ctx, @@ -2214,7 +2233,8 @@ void die_if_kernel(char *str, struct pt_regs *regs) " /_| \\__/ |_\\\n" " \\__U_/\n"); - printk("%s(%d): %s [#%d]\n", current->comm, current->pid, str, ++die_counter); + printk("%s(%d[#%u]): %s [#%d]\n", current->comm, + current->pid, current->xid, str, ++die_counter); notify_die(DIE_OOPS, str, regs, 0, 255, SIGSEGV); __asm__ __volatile__("flushw"); __show_regs(regs); @@ -2252,8 +2272,12 @@ void die_if_kernel(char *str, struct pt_regs *regs) do_exit(SIGSEGV); } +#define VIS_OPCODE_MASK ((0x3 << 30) | (0x3f << 19)) +#define VIS_OPCODE_VAL ((0x2 << 30) | (0x36 << 19)) + extern int handle_popc(u32 insn, struct pt_regs *regs); extern int handle_ldf_stq(u32 insn, struct pt_regs *regs); +extern int vis_emul(struct pt_regs *, unsigned int); void do_illegal_instruction(struct pt_regs *regs) { @@ -2278,10 +2302,18 @@ void do_illegal_instruction(struct pt_regs *regs) if (handle_ldf_stq(insn, regs)) return; } else if (tlb_type == hypervisor) { - extern int vis_emul(struct pt_regs *, unsigned int); + if ((insn & VIS_OPCODE_MASK) == VIS_OPCODE_VAL) { + if (!vis_emul(regs, insn)) + return; + } else { + struct fpustate *f = FPUSTATE; - if (!vis_emul(regs, insn)) - return; + /* XXX maybe verify XFSR bits like + * XXX do_fpother() does? + */ + if (do_mathemu(regs, f)) + return; + } } } info.si_signo = SIGILL; @@ -2544,7 +2576,9 @@ void __init trap_init(void) (TRAP_PER_CPU_TSB_HUGE != offsetof(struct trap_per_cpu, tsb_huge)) || (TRAP_PER_CPU_TSB_HUGE_TEMP != - offsetof(struct trap_per_cpu, tsb_huge_temp))) + offsetof(struct trap_per_cpu, tsb_huge_temp)) || + (TRAP_PER_CPU_IRQ_WORKLIST != + offsetof(struct trap_per_cpu, irq_worklist))) trap_per_cpu_offsets_are_bolixed_dave(); if ((TSB_CONFIG_TSB !=