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-rw-r--r--tests/core_hotunplug.c100
1 files changed, 74 insertions, 26 deletions
diff --git a/tests/core_hotunplug.c b/tests/core_hotunplug.c
index d51526029..7fc6df688 100644
--- a/tests/core_hotunplug.c
+++ b/tests/core_hotunplug.c
@@ -78,12 +78,18 @@ static int local_close(int fd, const char *warning)
static int close_device(int fd_drm, const char *when, const char *which)
{
+ if (fd_drm < 0) /* not open - return current status */
+ return fd_drm;
+
igt_debug("%sclosing %sdevice instance\n", when, which);
return local_close(fd_drm, "Device close failed");
}
static int close_sysfs(int fd_sysfs_dev)
{
+ if (fd_sysfs_dev < 0) /* not open - return current status */
+ return fd_sysfs_dev;
+
return local_close(fd_sysfs_dev, "Device sysfs node close failed");
}
@@ -117,24 +123,22 @@ static void prepare(struct hotunplug *priv)
static void driver_unbind(struct hotunplug *priv, const char *prefix)
{
igt_debug("%sunbinding the driver from the device\n", prefix);
+ priv->failure = "Driver unbind failure!";
- priv->failure = "Driver unbind timeout!";
- igt_set_timeout(60, priv->failure);
+ igt_set_timeout(60, "Driver unbind timeout!");
igt_sysfs_set(priv->fd.sysfs_drv, "unbind", priv->dev_bus_addr);
igt_reset_timeout();
- priv->failure = NULL;
}
/* Re-bind the driver to the device */
static void driver_bind(struct hotunplug *priv)
{
igt_debug("rebinding the driver to the device\n");
+ priv->failure = "Driver re-bind failure!";
- priv->failure = "Driver re-bind timeout!";
- igt_set_timeout(60, priv->failure);
+ igt_set_timeout(60, "Driver re-bind timeout!");
igt_sysfs_set(priv->fd.sysfs_drv, "bind", priv->dev_bus_addr);
igt_reset_timeout();
- priv->failure = NULL;
}
/* Remove (virtually unplug) the device from its bus */
@@ -147,12 +151,11 @@ static void device_unplug(struct hotunplug *priv, const char *prefix)
igt_assert_fd(priv->fd.sysfs_dev);
igt_debug("%sunplugging the device\n", prefix);
+ priv->failure = "Device unplug failure!";
- priv->failure = "Device unplug timeout!";
- igt_set_timeout(60, priv->failure);
+ igt_set_timeout(60, "Device unplug timeout!");
igt_sysfs_set(priv->fd.sysfs_dev, "remove", "1");
igt_reset_timeout();
- priv->failure = NULL;
priv->fd.sysfs_dev = close_sysfs(priv->fd.sysfs_dev);
}
@@ -161,12 +164,17 @@ static void device_unplug(struct hotunplug *priv, const char *prefix)
static void bus_rescan(struct hotunplug *priv)
{
igt_debug("rediscovering the device\n");
+ priv->failure = "Bus rescan failure!";
- priv->failure = "Bus rescan timeout!";
- igt_set_timeout(60, priv->failure);
+ igt_set_timeout(60, "Bus rescan timeout!");
igt_sysfs_set(priv->fd.sysfs_bus, "../rescan", "1");
igt_reset_timeout();
- priv->failure = NULL;
+}
+
+static void cleanup(struct hotunplug *priv)
+{
+ priv->fd.drm = close_device(priv->fd.drm, "post ", "failed ");
+ priv->fd.sysfs_dev = close_sysfs(priv->fd.sysfs_dev);
}
static void healthcheck(struct hotunplug *priv)
@@ -180,25 +188,45 @@ static void healthcheck(struct hotunplug *priv)
priv->failure = "Device reopen failure!";
fd_drm = local_drm_open_driver("re", " for health check");
- if (closed) /* store fd for post_healthcheck if not dirty */
+ if (closed) /* store fd for cleanup if not dirty */
priv->fd.drm = fd_drm;
- priv->failure = NULL;
if (is_i915_device(fd_drm)) {
priv->failure = "GEM failure";
igt_require_gem(fd_drm);
priv->failure = NULL;
+ } else {
+ /* no device specific healthcheck, rely on reopen result */
+ priv->failure = NULL;
}
fd_drm = close_device(fd_drm, "", "health checked ");
if (closed || fd_drm < -1) /* update status for post_healthcheck */
priv->fd.drm = fd_drm;
+
+ /* not only request igt_abort on failure, also fail the health check */
+ igt_fail_on_f(priv->failure, "%s\n", priv->failure);
+}
+
+static void recover(struct hotunplug *priv)
+{
+ cleanup(priv);
+
+ if (faccessat(priv->fd.sysfs_bus, priv->dev_bus_addr, F_OK, 0))
+ bus_rescan(priv);
+
+ else if (faccessat(priv->fd.sysfs_drv, priv->dev_bus_addr, F_OK, 0))
+ driver_bind(priv);
+
+ if (priv->failure)
+ healthcheck(priv);
}
static void post_healthcheck(struct hotunplug *priv)
{
igt_abort_on_f(priv->failure, "%s\n", priv->failure);
+ cleanup(priv);
igt_require(priv->fd.drm == -1);
}
@@ -297,30 +325,50 @@ igt_main
prepare(&priv);
}
- igt_describe("Check if the driver can be cleanly unbound from a device believed to be closed");
- igt_subtest("unbind-rebind")
- unbind_rebind(&priv);
+ igt_subtest_group {
+ igt_describe("Check if the driver can be cleanly unbound from a device believed to be closed");
+ igt_subtest("unbind-rebind")
+ unbind_rebind(&priv);
+
+ igt_fixture
+ recover(&priv);
+ }
igt_fixture
post_healthcheck(&priv);
- igt_describe("Check if a device believed to be closed can be cleanly unplugged");
- igt_subtest("unplug-rescan")
- unplug_rescan(&priv);
+ igt_subtest_group {
+ igt_describe("Check if a device believed to be closed can be cleanly unplugged");
+ igt_subtest("unplug-rescan")
+ unplug_rescan(&priv);
+
+ igt_fixture
+ recover(&priv);
+ }
igt_fixture
post_healthcheck(&priv);
- igt_describe("Check if the driver can be cleanly unbound from a still open device, then released");
- igt_subtest("hotunbind-lateclose")
- hotunbind_lateclose(&priv);
+ igt_subtest_group {
+ igt_describe("Check if the driver can be cleanly unbound from a still open device, then released");
+ igt_subtest("hotunbind-lateclose")
+ hotunbind_lateclose(&priv);
+
+ igt_fixture
+ recover(&priv);
+ }
igt_fixture
post_healthcheck(&priv);
- igt_describe("Check if a still open device can be cleanly unplugged, then released");
- igt_subtest("hotunplug-lateclose")
- hotunplug_lateclose(&priv);
+ igt_subtest_group {
+ igt_describe("Check if a still open device can be cleanly unplugged, then released");
+ igt_subtest("hotunplug-lateclose")
+ hotunplug_lateclose(&priv);
+
+ igt_fixture
+ recover(&priv);
+ }
igt_fixture {
post_healthcheck(&priv);