[PATCH i-g-t v2] tests/intel/xe_pm_residency: Add an assertion on MI_STORE execution time

[Karthik Poosa <karthik.poosa@intel.com>]

MI_STORE_DWORD generally completes within couple of ms.
Assert if it takes more than 1.2 seconds, as it will cause
IGT test to timeout due to sleep of 120 seconds which is
the current per test timeout.

v2: Correct couple of typos in patch and commit message.

Signed-off-by: Karthik Poosa <karthik.poosa@intel.com>
Reviewed-by: Riana Tauro <riana.tauro@intel.com>
---
 tests/intel/xe_pm_residency.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tests/intel/xe_pm_residency.c b/tests/intel/xe_pm_residency.c
index 0e687558b..75cdeeeee 100644
--- a/tests/intel/xe_pm_residency.c
+++ b/tests/intel/xe_pm_residency.c
@@ -144,6 +144,15 @@ static void exec_load(int fd, struct drm_xe_engine_class_instance *hwe, unsigned
 			  1e-3 * submit,
 			  1e-3 * (elapsed - submit));
 
+		/*
+		 * MI_STORE_DWORD generally completes within couple of ms.
+		 * Assert if it takes more than 1.2 seconds, as it will cause
+		 * IGT test to timeout due to sleep of 120 seconds which is
+		 * the current per test timeout. Currently there is no way to
+		 * read this timeout from IGT test.
+		 */
+		igt_assert((uint64_t)elapsed < (uint64_t)(1.2 * NSEC_PER_SEC));
+
 		syncobj_reset(fd, &syncobj, 1);
 
 		/*
-- 
2.25.1