[igt-dev] [PATCH i-g-t v2 1/2] tests/xe_pm : Add support to disable all crtc

[Anshuman Gupta <anshuman.gupta@intel.com>]

xe_pm d3 test requires to disable all crtc in order to enter
to d3 state therefore, adding the support to disable all crtc.

Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
---
 tests/xe/xe_pm.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/tests/xe/xe_pm.c b/tests/xe/xe_pm.c
index 23b8246ed..c71fce892 100644
--- a/tests/xe/xe_pm.c
+++ b/tests/xe/xe_pm.c
@@ -34,6 +34,7 @@ typedef struct {
 	int fd_xe;
 	struct pci_device *pci_xe;
 	struct pci_device *pci_root;
+	igt_display_t display;
 } device_t;
 
 /* runtime_usage is only available if kernel build CONFIG_PM_ADVANCED_DEBUG */
@@ -150,6 +151,23 @@ static bool out_of_d3(device_t device, enum igt_acpi_d_state state)
 	return true;
 }
 
+static void disable_all_crtc(device_t *device)
+{
+	if (!drmModeGetResources(device->fd_xe))
+		return;
+
+	igt_display_require(&device->display, device->fd_xe);
+	igt_modeset_disable_all_outputs(&device->display);
+}
+
+static void display_fini(device_t *device)
+{
+	if (!drmModeGetResources(device->fd_xe))
+		return;
+
+	igt_display_fini(&device->display);
+}
+
 /**
  * SUBTEST: %s-basic
  * Description: set GPU state to %arg[1] and test suspend/autoresume
@@ -378,6 +396,7 @@ igt_main
 
 		get_d3cold_allowed(device.pci_xe, d3cold_allowed);
 		igt_assert(igt_setup_runtime_pm(device.fd_xe));
+		disable_all_crtc(&device);
 	}
 
 	for (const struct s_state *s = s_states; s->name; s++) {
@@ -438,6 +457,7 @@ igt_main
 	}
 
 	igt_fixture {
+		display_fini(&device);
 		set_d3cold_allowed(device.pci_xe, d3cold_allowed);
 		igt_restore_runtime_pm();
 		xe_device_put(device.fd_xe);
-- 
2.25.1