@@ -378,6 +378,35 @@ static void gem_hotunplug_lateclose(void)
healthcheck();
}
+static void prime_hotunplug_lateclose(void)
+{
+ struct hotunplug priv;
+ uint32_t handle;
+ int dmabuf;
+
+ prepare_for_rescan(&priv);
+
+ igt_require_gem(priv.fd.drm);
+
+ local_debug("creating and PRIME-exporting a GEM object");
+ handle = gem_create(priv.fd.drm, 4096);
+ dmabuf = prime_handle_to_fd(priv.fd.drm, handle);
+
+ local_debug("closing the device");
+ close(priv.fd.drm);
+
+ local_debug("hot unplugging the device");
+ device_unplug(priv.fd.sysfs_dev);
+
+ local_debug("late closing the PRIME file handle");
+ close(dmabuf);
+
+ local_debug("recovering the device");
+ bus_rescan(priv.fd.sysfs_bus);
+
+ healthcheck();
+}
+
/* Main */
igt_main
@@ -464,4 +493,11 @@ igt_main
igt_fixture
igt_abort_on_f(failure, "%s\n", failure);
+
+ igt_describe("Check if a device with a still open PRIME-exported object can be cleanly unplugged, then released and recovered");
+ igt_subtest("prime-hotunplug-lateclose")
+ prime_hotunplug_lateclose();
+
+ igt_fixture
+ igt_abort_on_f(failure, "%s\n", failure);
}
Even if all device file descriptors are closed on device hotunplug, PRIME exported objects may still exists, referenced by still open dma-buf file handles. Add a subtest that keeps such handle open on device hotunplug. Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com> --- tests/core_hotunplug.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+)