[PATCH i-g-t 2/3] tests/intel/xe_eudebug: Add basic-vm-bind-drop-debugger-before-ufence-ack test

[Dominik Karol Piątkowski]

Add a test that gives user fence in application, holds it, drops the
debugger connection and checks if anything breaks. It is expected that
held acks are released when connection is dropped.

Signed-off-by: Dominik Karol Piątkowski <dominik.karol.piatkowski at intel.com>
---
 tests/intel/xe_eudebug.c | 50 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

diff --git a/tests/intel/xe_eudebug.c b/tests/intel/xe_eudebug.c
index 1853dee40..0a4bebf1e 100644
--- a/tests/intel/xe_eudebug.c
+++ b/tests/intel/xe_eudebug.c
@@ -2171,6 +2171,53 @@ static void test_basic_ufence(int fd, unsigned int flags)
 	ufence_priv_destroy(priv);
 }
 
+/**
+ * SUBTEST: basic-vm-bind-drop-debugger-before-ufence-ack
+ * Description:
+ *	Give user fence in application, hold it, drop the debugger connection and check if anything
+ *	breaks. Expect that held acks are released when connection is dropped.
+ */
+static void test_ufence_drop_debugger_before_ack(int fd)
+{
+	struct xe_eudebug_debugger *d;
+	struct xe_eudebug_session *s;
+	struct xe_eudebug_client *c;
+	struct ufence_priv *priv;
+
+	priv = ufence_priv_create();
+	s = xe_eudebug_session_create(fd, basic_ufence_client, 0, priv);
+	c = s->client;
+	d = s->debugger;
+
+	xe_eudebug_debugger_add_trigger(d,
+					DRM_XE_EUDEBUG_EVENT_VM_BIND_UFENCE,
+					basic_ufence_trigger);
+
+	igt_assert_eq(xe_eudebug_debugger_attach(d, c), 0);
+	xe_eudebug_debugger_start_worker(d);
+	xe_eudebug_client_start(c);
+
+	xe_eudebug_debugger_wait_stage(s, STAGE_CLIENT_WAIT_ON_UFENCE_DONE);
+	xe_eudebug_assert_f(d, wait_for_ufence_events(priv, XE_EUDEBUG_DEFAULT_TIMEOUT_SEC * MSEC_PER_SEC) == 0,
+			    "missing ufence events\n");
+
+	xe_eudebug_debugger_detach(d);
+	sleep(1);
+	igt_assert_eq(xe_eudebug_debugger_attach(d, c), 0);
+
+	xe_eudebug_client_wait_done(c);
+	xe_eudebug_debugger_stop_worker(d, 1);
+
+	xe_eudebug_event_log_print(d->log, true);
+	xe_eudebug_event_log_print(c->log, true);
+
+	xe_eudebug_session_check(s, true, XE_EUDEBUG_FILTER_EVENT_VM_BIND |
+				 XE_EUDEBUG_FILTER_EVENT_VM | XE_EUDEBUG_FILTER_EVENT_OPEN);
+
+	xe_eudebug_session_destroy(s);
+	ufence_priv_destroy(priv);
+}
+
 struct vm_bind_clear_thread_priv {
 	struct drm_xe_engine_class_instance *hwe;
 	struct xe_eudebug_client *c;
@@ -2825,6 +2872,9 @@ igt_main
 	igt_subtest("basic-vm-bind-ufence-delay-ack")
 		test_basic_ufence(fd, VM_BIND_DELAY_UFENCE_ACK);
 
+	igt_subtest("basic-vm-bind-drop-debugger-before-ufence-ack")
+		test_ufence_drop_debugger_before_ack(fd);
+
 	igt_subtest("vma-ufence")
 		test_vma_ufence(fd, 0);
 
-- 
2.34.1