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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 <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8400/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Markos Chandras 2014-11-12 09:22:42 +00:00 committed by Ralf Baechle
parent 314727fe5c
commit 31ec86b854
1 changed files with 5 additions and 0 deletions
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5
arch/mips/kernel/traps.c
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@ -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();
}