[PATCH i-g-t v4 4/5] tests/pm_dc: Added test for DC5 during DPMS

Anshuman Gupta
2019-02-01T16:14:08Z

From: Jyoti Yadav <jyoti.r.yadav@intel.com>

Added new subtest for DC5 entry during DPMS on/off cycle.
During DPMS on/off cycle DC5 counter is incremented.

v2: Rename the subtest with meaningful name.
v3: Rebased.
v4: Addressed review comments.

Signed-off-by: Jyoti Yadav <jyoti.r.yadav@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
---
tests/pm_dc.c | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)

diff --git a/tests/pm_dc.c b/tests/pm_dc.c
index ea612a7..05f1363 100644
--- a/tests/pm_dc.c
+++ b/tests/pm_dc.c
@@ -164,6 +164,29 @@ static void test_dc_state_psr(data_t *data, int dc_flag)
check_dc_counter(data->drm_fd, dc_flag, dc_counter_before_psr);
}

+static void dpms_off_on(data_t *data)
+{
+ for (int i = 0; i < data->display.n_outputs; i++) {
+ kmstest_set_connector_dpms(data->drm_fd, data->display.outputs[i].config.connector,
+ DRM_MODE_DPMS_OFF);
+ }
+ igt_assert(igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_SUSPENDED));
+ for (int i = 0; i < data->display.n_outputs; i++) {
+ kmstest_set_connector_dpms(data->drm_fd, data->display.outputs[i].config.connector,
+ DRM_MODE_DPMS_ON);
+ }
+ igt_assert(igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_ACTIVE));
+}
+
+static void test_dc_state_dpms(data_t *data, int dc_flag)
+{
+ uint32_t dc_counter;
+
+ dc_counter = read_dc_counter(data->drm_fd, dc_flag);
+ dpms_off_on(data);
+ check_dc_counter(data->drm_fd, dc_flag, dc_counter);
+}
+
int main(int argc, char *argv[])
{
bool has_runtime_pm;
@@ -209,6 +232,15 @@ int main(int argc, char *argv[])
test_dc_state_psr(&data, CHECK_DC6);
cleanup(&data);
}
+
+ igt_subtest("dc5-dpms") {
+ /* Check DC5 counter is available for the platform.
+ * Skip the test if counter is not available.
+ */
+ read_dc_counter(data.drm_fd, CHECK_DC5);
+ test_dc_state_dpms(&data, CHECK_DC5);
+ }
+
igt_fixture {
close(data.debugfs_fd);
display_fini(&data);
--
2.7.4