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 <[email protected]> --- tests/core_hotunplug.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c index 309d4efef..35a4fb13c 100644 --- a/tests/core_hotunplug.c +++ b/tests/core_hotunplug.c @@ -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); } -- 2.21.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
