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Diffstat (limited to 'arch/mips/kernel/traps.c')
-rw-r--r--arch/mips/kernel/traps.c20
1 files changed, 18 insertions, 2 deletions
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 4901f0a37fca..a7564b08eb4d 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -819,15 +819,30 @@ asmlinkage void do_watch(struct pt_regs *regs)
819 819
820asmlinkage void do_mcheck(struct pt_regs *regs) 820asmlinkage void do_mcheck(struct pt_regs *regs)
821{ 821{
822 const int field = 2 * sizeof(unsigned long);
823 int multi_match = regs->cp0_status & ST0_TS;
824
822 show_regs(regs); 825 show_regs(regs);
823 dump_tlb_all(); 826
827 if (multi_match) {
828 printk("Index : %0x\n", read_c0_index());
829 printk("Pagemask: %0x\n", read_c0_pagemask());
830 printk("EntryHi : %0*lx\n", field, read_c0_entryhi());
831 printk("EntryLo0: %0*lx\n", field, read_c0_entrylo0());
832 printk("EntryLo1: %0*lx\n", field, read_c0_entrylo1());
833 printk("\n");
834 dump_tlb_all();
835 }
836
837 show_code((unsigned int *) regs->cp0_epc);
838
824 /* 839 /*
825 * Some chips may have other causes of machine check (e.g. SB1 840 * Some chips may have other causes of machine check (e.g. SB1
826 * graduation timer) 841 * graduation timer)
827 */ 842 */
828 panic("Caught Machine Check exception - %scaused by multiple " 843 panic("Caught Machine Check exception - %scaused by multiple "
829 "matching entries in the TLB.", 844 "matching entries in the TLB.",
830 (regs->cp0_status & ST0_TS) ? "" : "not "); 845 (multi_match) ? "" : "not ");
831} 846}
832 847
833asmlinkage void do_mt(struct pt_regs *regs) 848asmlinkage void do_mt(struct pt_regs *regs)
@@ -902,6 +917,7 @@ static inline void parity_protection_init(void)
902{ 917{
903 switch (current_cpu_data.cputype) { 918 switch (current_cpu_data.cputype) {
904 case CPU_24K: 919 case CPU_24K:
920 case CPU_34K:
905 case CPU_5KC: 921 case CPU_5KC:
906 write_c0_ecc(0x80000000); 922 write_c0_ecc(0x80000000);
907 back_to_back_c0_hazard(); 923 back_to_back_c0_hazard();