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path: root/drivers/gpu/drm/i915/display/skl_universal_plane.c
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Diffstat (limited to 'drivers/gpu/drm/i915/display/skl_universal_plane.c')
-rw-r--r--drivers/gpu/drm/i915/display/skl_universal_plane.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c
index 511dc1544854..392d93e97bf8 100644
--- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
+++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
@@ -2624,3 +2624,31 @@ skl_get_initial_plane_config(struct intel_crtc *crtc,
error:
kfree(intel_fb);
}
+
+bool skl_fixup_initial_plane_config(struct intel_crtc *crtc,
+ const struct intel_initial_plane_config *plane_config)
+{
+ struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+ struct intel_plane *plane = to_intel_plane(crtc->base.primary);
+ const struct intel_plane_state *plane_state =
+ to_intel_plane_state(plane->base.state);
+ enum plane_id plane_id = plane->id;
+ enum pipe pipe = crtc->pipe;
+ u32 base;
+
+ if (!plane_state->uapi.visible)
+ return false;
+
+ base = intel_plane_ggtt_offset(plane_state);
+
+ /*
+ * We may have moved the surface to a different
+ * part of ggtt, make the plane aware of that.
+ */
+ if (plane_config->base == base)
+ return false;
+
+ intel_de_write(i915, PLANE_SURF(pipe, plane_id), base);
+
+ return true;
+}