Verify if a device with a GEM batch job still running on a GPU can be
hot-unplugged cleanly and released, then recovered.
Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@xxxxxxxxxxxxxxx>
---
tests/core_hotunplug.c | 34 ++++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index 35a4fb13c..c8d7ec7e1 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -31,6 +31,7 @@
#include "igt.h"
#include "igt_device_scan.h"
+#include "igt_dummyload.h"
#include "igt_kmod.h"
#include "igt_sysfs.h"
@@ -407,6 +408,32 @@ static void prime_hotunplug_lateclose(void)
healthcheck();
}
+static void batch_hotunplug_lateclose(void)
+{
+ struct hotunplug priv;
+ igt_spin_t *spin;
+
+ prepare_for_rescan(&priv);
+
+ igt_require_gem(priv.fd.drm);
+
+ local_debug("running dummy load");
+ spin = __igt_spin_new(priv.fd.drm, .flags = IGT_SPIN_POLL_RUN |
+ IGT_SPIN_NO_PREEMPTION);
+ igt_spin_busywait_until_started(spin);
+
+ local_debug("hot unplugging the device");
+ device_unplug(priv.fd.sysfs_dev);
+
+ local_debug("late closing the removed device instance");
+ close(priv.fd.drm);
+
+ local_debug("recovering the device");
+ bus_rescan(priv.fd.sysfs_bus);
+
+ healthcheck();
+}
+
/* Main */
igt_main
@@ -500,4 +527,11 @@ igt_main
igt_fixture
igt_abort_on_f(failure, "%s\n", failure);
+
+ igt_describe("Check if a device with a still running batch can be cleanly unplugged, then released and recovered");
+ igt_subtest("batch-hotunplug-lateclose")
+ batch_hotunplug_lateclose();
+
+ igt_fixture
+ igt_abort_on_f(failure, "%s\n", failure);
}
--
2.21.1
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