Verify if an additional address space associated with an open device
file descriptor is cleaned up correctly on device hotunplug.
Signed-off-by: Janusz Krzysztofik <janusz.krzyszto...@linux.intel.com>
---
tests/core_hotunplug.c | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index f736a991f..6d9f530b1 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -34,6 +34,8 @@
#include "igt_kmod.h"
#include "igt_sysfs.h"
+#include "i915/gem_vm.h"
+
IGT_TEST_DESCRIPTION("Examine behavior of a driver on device hot unplug");
struct hotunplug {
@@ -330,6 +332,29 @@ static void hotreplug_lateclose(void)
healthcheck();
}
+static void vm_hotunplug_lateclose(void)
+{
+ struct hotunplug priv;
+
+ prepare_for_rescan(&priv);
+
+ gem_require_vm(priv.fd.drm);
+
+ local_debug("creating additional GEM user address space");
+ igt_ignore_warn(gem_vm_create(priv.fd.drm));
+
+ 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
@@ -402,4 +427,11 @@ igt_main
igt_fixture
igt_abort_on_f(failure, "%s\n", failure);
+
+ igt_describe("Check if a still open device with extra GEM address space
can be cleanly unplugged, then released and recovered");
+ igt_subtest("vm-hotunplug-lateclose")
+ vm_hotunplug_lateclose();
+
+ igt_fixture
+ igt_abort_on_f(failure, "%s\n", failure);
}
--
2.21.1
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