From 31ec86b8549992923c2639fa1841a02e48b93310 Mon Sep 17 00:00:00 2001 From: Markos Chandras Date: Wed, 12 Nov 2014 09:22:42 +0000 Subject: [PATCH] MIPS: traps: Dump the HTW registers on a MC exception The HTW registers can be useful to debug a MC exception. Signed-off-by: Markos Chandras Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/8400/ Signed-off-by: Ralf Baechle --- arch/mips/kernel/traps.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index dde5d8f6c491..807def5ab5ed 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -1432,6 +1432,11 @@ asmlinkage void do_mcheck(struct pt_regs *regs) pr_err("EntryHi : %0*lx\n", field, read_c0_entryhi()); pr_err("EntryLo0: %0*lx\n", field, read_c0_entrylo0()); pr_err("EntryLo1: %0*lx\n", field, read_c0_entrylo1()); + if (cpu_has_htw) { + pr_err("PWField : %0*lx\n", field, read_c0_pwfield()); + pr_err("PWSize : %0*lx\n", field, read_c0_pwsize()); + pr_err("PWCtl : %0x\n", read_c0_pwctl()); + } pr_err("\n"); dump_tlb_all(); } -- 2.20.1