[PATCH i-g-t v2] tests/kms_lease: Cache xe_device info for lease fd

[Mohammed Thasleem <mohammed.thasleem@intel.com>]

In case of xe device for lessor fd, the xe_device struct gets
created and cached during drm_open. But for the lessee fd,
the xe_device info struct is not created and cached.

This causes problem in prepare_crtc() for lessee with xe, which
needs the xe_device info struct. So, create and cache the xe_device
struct info for lease fd, when we make lease and remove it from
cache while terminating the lease.

v2: -Update description and move logic to make_lease call. (Ankit)
    -Add xe_device_put, while terminating the lease. (Ankit)

Signed-off-by: Mohammed Thasleem <mohammed.thasleem@intel.com>
---
 tests/kms_lease.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tests/kms_lease.c b/tests/kms_lease.c
index 8ac58af38..f7531c803 100644
--- a/tests/kms_lease.c
+++ b/tests/kms_lease.c
@@ -48,6 +48,8 @@
 
 #include <drm.h>
 #include "igt_device.h"
+#include "xe_drm.h"
+#include "xe/xe_query.h"
 
 /**
  * SUBTEST: atomic-implicit-crtc
@@ -267,12 +269,20 @@ static int make_lease(data_t *data)
 	if (ret)
 		return ret;
 
+	/* Cache xe_device struct */
+	if (is_xe_device(data->lease.fd))
+		xe_device_get(data->lease.fd);
+
 	data->lease.lessee_id = mcl.lessee_id;
 	return 0;
 }
 
 static void terminate_lease(int lease_fd)
 {
+	/* Remove xe_device from cache. */
+	if (is_xe_device(lease_fd))
+		xe_device_put(lease_fd);
+
 	close(lease_fd);
 }
 
-- 
2.25.1