[PATCH v3] tests/intel/xe_wedged: Read wedged_mode debugfs

[Pravalika Gurram <pravalika.gurram@intel.com>]

Added support to read the wedged_mode debugfs

Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Reviewed-by: Kamil Konieczny <kamil.konieczny@linux.intel.com>
Signed-off-by: Pravalika Gurram <pravalika.gurram@intel.com>
---
 tests/intel/xe_wedged.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/tests/intel/xe_wedged.c b/tests/intel/xe_wedged.c
index 613d571b4..22ff75367 100644
--- a/tests/intel/xe_wedged.c
+++ b/tests/intel/xe_wedged.c
@@ -203,6 +203,10 @@ simple_hang(int fd, struct drm_xe_sync *sync)
  * SUBTEST: wedged-mode-toggle
  * Description: Test wedged.mode=1 after testing wedged.mode=2
  */
+/**
+ * SUBTEST: basic-wedged-read
+ * Description: Read wedged_mode debugfs
+ */
 igt_main
 {
 	struct drm_xe_engine_class_instance *hwe;
@@ -279,6 +283,15 @@ igt_main
 		igt_assert_eq(simple_ioctl(fd), 0);
 	}
 
+	igt_subtest_f("basic-wedged-read") {
+		char str[150] = {0};
+
+		igt_require(igt_debugfs_exists(fd, "wedged_mode", O_RDONLY));
+
+		igt_debugfs_read(fd, "wedged_mode", str);
+		igt_assert_f(str[0] != '\0', "Failed to read wedged_mode from debugfs!\n");
+	}
+
 	igt_fixture {
 		if (igt_debugfs_exists(fd, "fail_gt_reset/probability", O_RDWR)) {
 			igt_debugfs_write(fd, "fail_gt_reset/probability", "0");
-- 
2.34.1