drm/i915: Add explicit pipe src size to pipe config

Rather that mess about with hdisplay/vdisplay from requested_mode, add
explicit pipe src size information to pipe config.

Now requested_mode is only really relevant for dvo/sdvo output timings.
For everything else either adjusted_mode or pipe src size should be
used.

In many places where we end up using pipe source size, we should
actually use the primary plane size, but we don't currently store
that information explicitly. As long as we treat primaries as full
screen only, we can get away with this. Eventually when we move
primaries over to drm_plane, we need to fix it all up.

v2: Add a comment to explain what pipe_src_{w,h} are
    Add a note about primary planes to commit message

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 8306940f0ae7..3046e78f31eb 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -215,6 +215,12 @@ struct intel_crtc_config {
         /* Actual pipe timings ie. what we program into the pipe timing
          * registers. adjusted_mode.clock is the pipe pixel clock. */
         struct drm_display_mode adjusted_mode;
+
+        /* Pipe source size (ie. panel fitter input size)
+         * All planes will be positioned inside this space,
+         * and get clipped at the edges. */
+        int pipe_src_w, pipe_src_h;
+
         /* Whether to set up the PCH/FDI. Note that we never allow sharing
          * between pch encoders and cpu encoders. */
         bool has_pch_encoder;