[igt-dev] [PATCH i-g-t] perf_pmu: Dump i915_runtime_pm_status

[Anshuman Gupta <anshuman.gupta@intel.com>]

Dump i915_pm_runtime_status in case of i915 device failed to runtime
suspend, it will dump the rpm wakeref tracking information which
will useful to debug the runtime pm issues.

Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
---
 tests/i915/perf_pmu.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tests/i915/perf_pmu.c b/tests/i915/perf_pmu.c
index c1779fc9d0..567b2fa5cf 100644
--- a/tests/i915/perf_pmu.c
+++ b/tests/i915/perf_pmu.c
@@ -1709,6 +1709,7 @@ test_rc6(int gem_fd, unsigned int flags)
 	int64_t duration_ns = 2e9;
 	uint64_t idle, busy, prev, ts[2];
 	unsigned long slept;
+	bool suspended;
 	int fd, fw;
 
 	gem_quiescent_gpu(gem_fd);
@@ -1727,7 +1728,12 @@ test_rc6(int gem_fd, unsigned int flags)
 		drmModeFreeResources(res);
 
 		igt_require(igt_setup_runtime_pm(gem_fd));
-		igt_require(igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_SUSPENDED));
+		suspended = igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_SUSPENDED);
+
+		if (!suspended)
+			__igt_debugfs_dump(gem_fd, "i915_runtime_pm_status", IGT_LOG_INFO);
+
+		igt_require(suspended);
 
 		/*
 		 * Sleep for a bit to see if once woken up estimated RC6 hasn't
-- 
2.25.1