runner: Dump GPU state on timeout

As well as the task and cpu state we show, include the GPU state now
available via sysrq upon a runner abort (typically a timeout for an
unresponsive driver).

Cc: Petri Latvala <adrinael@adrinael.net>
Signed-off-by: Chris Wilson <chris.p.wilson@intel.com>
Signed-off-by: Kamil Konieczny <kamil.konieczny@linux.intel.com>
Reviewed-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>

runner/executor.c

@@ -748,6 +748,7 @@ static void kmsg_log(int severity, const char *msg)
 static const char *show_kernel_task_state(const char *msg)
 {
 	kmsg_log(KMSG_WARN, msg);
+	sysrq('G'); /* GPU state */
 	sysrq('t'); /* task state, stack traces and cpu run lists */
 	sysrq('m'); /* task memory usage */