A lot of code duplicates this, but it should be handled in the core.
Add it and use it after igt_display_init(), the tests have to be
converted one by one.

Signed-off-by: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
---
 lib/igt_kms.c | 162 +++++++++++++++++++++++++++++++++++++---------------------
 lib/igt_kms.h |   1 +
 2 files changed, 104 insertions(+), 59 deletions(-)

diff --git a/lib/igt_kms.c b/lib/igt_kms.c
index 1d26b8ddbf43..239f4f17d22e 100644
--- a/lib/igt_kms.c
+++ b/lib/igt_kms.c
@@ -1549,29 +1549,14 @@ static void igt_output_refresh(igt_output_t *output)
                               -1);
        }
 
-       if (output->config.connector) {
+       if (output->config.connector)
                igt_atomic_fill_connector_props(display, output,
                        IGT_NUM_CONNECTOR_PROPS, igt_connector_prop_names);
 
-               if (output->props[IGT_CONNECTOR_BROADCAST_RGB])
-                       igt_output_set_prop_value(output,
-                                                 IGT_CONNECTOR_BROADCAST_RGB,
-                                                 BROADCAST_RGB_FULL);
-       }
-
        LOG(display, "%s: Selecting pipe %s\n", output->name,
            kmstest_pipe_name(output->pending_pipe));
 }
 
-static bool
-get_plane_property(int drm_fd, uint32_t plane_id, const char *name,
-                  uint32_t *prop_id /* out */, uint64_t *value /* out */,
-                  drmModePropertyPtr *prop /* out */)
-{
-       return kmstest_get_property(drm_fd, plane_id, DRM_MODE_OBJECT_PLANE,
-                                   name, prop_id, value, prop);
-}
-
 static int
 igt_plane_set_property(igt_plane_t *plane, uint32_t prop_id, uint64_t value)
 {
@@ -1582,15 +1567,6 @@ igt_plane_set_property(igt_plane_t *plane, uint32_t 
prop_id, uint64_t value)
                                 DRM_MODE_OBJECT_PLANE, prop_id, value);
 }
 
-static bool
-get_crtc_property(int drm_fd, uint32_t crtc_id, const char *name,
-                  uint32_t *prop_id /* out */, uint64_t *value /* out */,
-                  drmModePropertyPtr *prop /* out */)
-{
-       return kmstest_get_property(drm_fd, crtc_id, DRM_MODE_OBJECT_CRTC,
-                                   name, prop_id, value, prop);
-}
-
 /*
  * Walk a plane's property list to determine its type.  If we don't
  * find a type property, then the kernel doesn't support universal
@@ -1601,14 +1577,110 @@ static int get_drm_plane_type(int drm_fd, uint32_t 
plane_id)
        uint64_t value;
        bool has_prop;
 
-       has_prop = get_plane_property(drm_fd, plane_id, "type",
-                                     NULL /* prop_id */, &value, NULL);
+       has_prop = kmstest_get_property(drm_fd, plane_id, DRM_MODE_OBJECT_PLANE,
+                                       "type", NULL, &value, NULL);
        if (has_prop)
                return (int)value;
 
        return DRM_PLANE_TYPE_OVERLAY;
 }
 
+static void igt_plane_reset(igt_plane_t *plane)
+{
+       /* Reset src coordinates. */
+       igt_plane_set_prop_value(plane, IGT_PLANE_SRC_X, 0);
+       igt_plane_set_prop_value(plane, IGT_PLANE_SRC_Y, 0);
+       igt_plane_set_prop_value(plane, IGT_PLANE_SRC_W, 0);
+       igt_plane_set_prop_value(plane, IGT_PLANE_SRC_H, 0);
+
+       /* Reset crtc coordinates. */
+       igt_plane_set_prop_value(plane, IGT_PLANE_CRTC_X, 0);
+       igt_plane_set_prop_value(plane, IGT_PLANE_CRTC_Y, 0);
+       igt_plane_set_prop_value(plane, IGT_PLANE_CRTC_W, 0);
+       igt_plane_set_prop_value(plane, IGT_PLANE_CRTC_H, 0);
+
+       /* Reset binding to fb and crtc. */
+       igt_plane_set_prop_value(plane, IGT_PLANE_FB_ID, 0);
+       igt_plane_set_prop_value(plane, IGT_PLANE_CRTC_ID, 0);
+
+       /* Use default rotation */
+       if (igt_plane_has_prop(plane, IGT_PLANE_ROTATION))
+               igt_plane_set_prop_value(plane, IGT_PLANE_ROTATION,
+                                        IGT_ROTATION_0);
+
+       igt_plane_clear_prop_changed(plane, IGT_PLANE_IN_FENCE_FD);
+       plane->values[IGT_PLANE_IN_FENCE_FD] = ~0ULL;
+}
+
+static void igt_pipe_reset(igt_pipe_t *pipe)
+{
+       igt_pipe_obj_set_prop_value(pipe, IGT_CRTC_MODE_ID, 0);
+       igt_pipe_obj_set_prop_value(pipe, IGT_CRTC_ACTIVE, 0);
+       igt_pipe_obj_clear_prop_changed(pipe, IGT_CRTC_OUT_FENCE_PTR);
+
+       pipe->out_fence_fd = -1;
+}
+
+static void igt_output_reset(igt_output_t *output)
+{
+       output->pending_pipe = PIPE_NONE;
+       output->use_override_mode = false;
+       memset(&output->override_mode, 0, sizeof(output->override_mode));
+
+       igt_output_set_prop_value(output, IGT_CONNECTOR_CRTC_ID, 0);
+
+       if (igt_output_has_prop(output, IGT_CONNECTOR_BROADCAST_RGB))
+               igt_output_set_prop_value(output, IGT_CONNECTOR_BROADCAST_RGB,
+                                         BROADCAST_RGB_FULL);
+}
+
+/**
+ * igt_display_reset:
+ * @display: a pointer to an #igt_display_t structure
+ *
+ * Reset basic pipes, connectors and planes on @display back to default values.
+ * In particular, the following properties will be reset:
+ *
+ * For outputs:
+ * - %IGT_CONNECTOR_CRTC_ID
+ * - %IGT_CONNECTOR_BROADCAST_RGB (if applicable)
+ * - igt_output_override_mode() to default.
+ *
+ * For pipes:
+ * - %IGT_CRTC_MODE_ID (leaked)
+ * - %IGT_CRTC_ACTIVE
+ * - %IGT_CRTC_OUT_FENCE_PTR
+ *
+ * For planes:
+ * - %IGT_PLANE_SRC_*
+ * - %IGT_PLANE_CRTC_*
+ * - %IGT_PLANE_FB_ID
+ * - %IGT_PLANE_CRTC_ID
+ * - %IGT_PLANE_ROTATION
+ * - %IGT_PLANE_IN_FENCE_FD
+ */
+void igt_display_reset(igt_display_t *display)
+{
+       enum pipe pipe;
+       int i;
+
+       for_each_pipe(display, pipe) {
+               igt_pipe_t *pipe_obj = &display->pipes[pipe];
+               igt_plane_t *plane;
+
+               for_each_plane_on_pipe(display, pipe, plane)
+                       igt_plane_reset(plane);
+
+               igt_pipe_reset(pipe_obj);
+       }
+
+       for (i = 0; i < display->n_outputs; i++) {
+               igt_output_t *output = &display->outputs[i];
+
+               igt_output_reset(output);
+       }
+}
+
 /**
  * igt_display_init:
  * @display: a pointer to an #igt_display_t structure
@@ -1648,7 +1720,7 @@ void igt_display_init(igt_display_t *display, int drm_fd)
        plane_resources = drmModeGetPlaneResources(display->drm_fd);
        igt_assert(plane_resources);
 
-       for (i = 0; i < display->n_pipes; i++) {
+       for_each_pipe(display, i) {
                igt_pipe_t *pipe = &display->pipes[i];
                igt_plane_t *plane;
                int p = 1;
@@ -1661,19 +1733,9 @@ void igt_display_init(igt_display_t *display, int drm_fd)
                pipe->plane_cursor = -1;
                pipe->plane_primary = -1;
                pipe->planes = NULL;
-               pipe->out_fence_fd = -1;
 
                igt_fill_pipe_props(display, pipe, IGT_NUM_CRTC_PROPS, 
igt_crtc_prop_names);
 
-               /* Force modeset disable on first commit */
-               igt_pipe_obj_set_prop_changed(pipe, IGT_CRTC_MODE_ID);
-               igt_pipe_obj_set_prop_changed(pipe, IGT_CRTC_ACTIVE);
-
-               get_crtc_property(display->drm_fd, pipe->crtc_id,
-                                   "background_color", NULL,
-                                   &pipe->values[IGT_CRTC_BACKGROUND],
-                                   NULL);
-
                /* count number of valid planes */
                for (j = 0; j < plane_resources->count_planes; j++) {
                        drmModePlane *drm_plane;
@@ -1730,24 +1792,6 @@ void igt_display_init(igt_display_t *display, int drm_fd)
                        plane->values[IGT_PLANE_IN_FENCE_FD] = ~0ULL;
 
                        igt_fill_plane_props(display, plane, 
IGT_NUM_PLANE_PROPS, igt_plane_prop_names);
-
-                       get_plane_property(display->drm_fd, drm_plane->plane_id,
-                                          "rotation",
-                                          &plane->props[IGT_PLANE_ROTATION],
-                                          &plane->values[IGT_PLANE_ROTATION],
-                                          NULL);
-
-                       /* Clear any residual framebuffer info on first commit. 
*/
-                       igt_plane_set_prop_changed(plane, IGT_PLANE_FB_ID);
-                       igt_plane_set_prop_changed(plane, IGT_PLANE_CRTC_ID);
-
-                       /*
-                        * CRTC_X/Y are not changed in igt_plane_set_fb, so
-                        * force them to be sanitized in case they contain
-                        * garbage.
-                        */
-                       igt_plane_set_prop_changed(plane, IGT_PLANE_CRTC_X);
-                       igt_plane_set_prop_changed(plane, IGT_PLANE_CRTC_Y);
                }
 
                /*
@@ -1782,18 +1826,18 @@ void igt_display_init(igt_display_t *display, int 
drm_fd)
                 * a pipe is set with igt_output_set_pipe().
                 */
                output->force_reprobe = true;
-               output->pending_pipe = PIPE_NONE;
                output->id = resources->connectors[i];
                output->display = display;
 
                igt_output_refresh(output);
-
-               igt_output_set_prop_changed(output, IGT_CONNECTOR_CRTC_ID);
        }
 
        drmModeFreePlaneResources(plane_resources);
        drmModeFreeResources(resources);
 
+       /* Set reasonable default values for every object in the display. */
+       igt_display_reset(display);
+
        LOG_UNINDENT(display);
 }
 
diff --git a/lib/igt_kms.h b/lib/igt_kms.h
index acc82913e0b7..e1883bf1b8a3 100644
--- a/lib/igt_kms.h
+++ b/lib/igt_kms.h
@@ -353,6 +353,7 @@ struct igt_display {
 
 void igt_display_init(igt_display_t *display, int drm_fd);
 void igt_display_fini(igt_display_t *display);
+void igt_display_reset(igt_display_t *display);
 int  igt_display_commit2(igt_display_t *display, enum igt_commit_style s);
 int  igt_display_commit(igt_display_t *display);
 int  igt_display_try_commit_atomic(igt_display_t *display, uint32_t flags, 
void *user_data);
-- 
2.15.0

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