[PATCH v2 8/9] tests/intel/xe_exec_reset: add gt-stress-reset-pm-transition subtest

[nishit.sharma@intel.com]

From: Nishit Sharma <nishit.sharma@intel.com>

This test creates a short idle/transition window before VM/context
teardown-recreate, approximating PM transition timing while
reset+submit pressure is active.

Signed-off-by: Nishit Sharma <nishit.sharma@intel.com>
---
 tests/intel/xe_exec_reset.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/tests/intel/xe_exec_reset.c b/tests/intel/xe_exec_reset.c
index d818173c2..42c2a7efd 100644
--- a/tests/intel/xe_exec_reset.c
+++ b/tests/intel/xe_exec_reset.c
@@ -139,6 +139,7 @@ static void test_spin(int fd, struct drm_xe_engine_class_instance *eci,
 #define RAPID_RESET_STRESS		(0x1 << 19)
 #define DESTROY_VM_CTX_STRESS		(0x1 << 20)
 #define MIXED_ENGINE_STRESS		(0x1 << 21)
+#define PM_TRANSITION_STRESS		(0x1 << 22)
 
 /**
  * SUBTEST: %s-cat-error
@@ -804,7 +805,11 @@ static void submit_jobs(struct gt_thread_data *t)
 		}
 
 		if (((t->flags & INVALIDATE_BO_STRESS) && !(i % 96)) ||
-		    ((t->flags & DESTROY_VM_CTX_STRESS) && !(i % 128))) {
+		    ((t->flags & DESTROY_VM_CTX_STRESS) && !(i % 128)) ||
+		     ((t->flags & PM_TRANSITION_STRESS) && !(i % 160))) {
+			if (t->flags & PM_TRANSITION_STRESS)
+				usleep(20000);
+
 			if (t->flags & MEM_PRESSURE_STRESS) {
 				pressure_bo_destroy(fd, pressure_bos, pressure_count);
 				pressure_count = 0;
@@ -878,6 +883,10 @@ static void *gt_reset_thread(void *data)
  * Description: Stress concurrent GT resets and mixed-engine job submissions
  * Test category: stress test
  *
+ * SUBTEST: gt-stress-reset-pm-transition
+ * Description: Stress concurrent GT resets and job submissions during PM transition windows
+ * Test category: stress test
+ *
  */
 static void
 gt_reset(int fd, int gt, int n_threads, int n_sec, unsigned int flags)
@@ -1103,6 +1112,7 @@ int igt_main()
 		{ "reset-rapid-cycle", RAPID_RESET_STRESS },
 		{ "reset-destroy-vm-context", DESTROY_VM_CTX_STRESS },
 		{ "reset-mixed-engine-usage", MIXED_ENGINE_STRESS | RAPID_RESET_STRESS },
+		{ "reset-pm-transition", PM_TRANSITION_STRESS | DESTROY_VM_CTX_STRESS },
 		{ NULL },
 	};
 	int gt;
-- 
2.43.0