MIPS: Add SysRq operation to dump TLBs on all CPUs

Add a MIPS specific SysRq operation to dump the TLB entries on all CPUs,
using the 'x' trigger key.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10072/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index 843f2cdc280b..8ba52e56bb8b 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -463,6 +463,7 @@ static struct sysrq_key_op *sysrq_key_table[36] = {
         /* v: May be registered for frame buffer console restore */
         NULL,                           /* v */
         &sysrq_showstate_blocked_op,    /* w */
+        /* x: May be registered on mips for TLB dump */
         /* x: May be registered on ppc/powerpc for xmon */
         /* x: May be registered on sparc64 for global PMU dump */
         NULL,                           /* x */