drm/i915/bdw: display stuff

Just enough to make the code not barf...

Init BDW display to look like HSW. For the simulator this should be
fine, but this will probably require more work.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
[danvet: Add a FIXME comment about RCS flips being untested on bdw.
Also add a note that hblank events are reserved on bdw+ in DERRMR.]
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index f897a70..48c3aef 100644 (file)
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -743,6 +743,7 @@
 #define   FPGA_DBG_RM_NOCLAIM  (1<<31)
 
 #define DERRMR         0x44050
+/* Note that HBLANK events are reserved on bdw+ */
 #define   DERRMR_PIPEA_SCANLINE                (1<<0)
 #define   DERRMR_PIPEA_PRI_FLIP_DONE   (1<<1)
 #define   DERRMR_PIPEA_SPR_FLIP_DONE   (1<<2)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index f34252d..d5eb5a4 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -10309,7 +10309,7 @@ static void intel_init_display(struct drm_device *dev)
                        dev_priv->display.write_eld = ironlake_write_eld;
                        dev_priv->display.modeset_global_resources =
                                ivb_modeset_global_resources;
-               } else if (IS_HASWELL(dev)) {
+               } else if (IS_HASWELL(dev) || IS_GEN8(dev)) {
                        dev_priv->display.fdi_link_train = hsw_fdi_link_train;
                        dev_priv->display.write_eld = haswell_write_eld;
                        dev_priv->display.modeset_global_resources =
@@ -10340,6 +10340,7 @@ static void intel_init_display(struct drm_device *dev)
                dev_priv->display.queue_flip = intel_gen6_queue_flip;
                break;
        case 7:
+       case 8: /* FIXME(BDW): Check that the gen8 RCS flip works. */
                dev_priv->display.queue_flip = intel_gen7_queue_flip;
                break;
        }

diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index 8afaad6..f8b265c 100644 (file)
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -1092,6 +1092,7 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane)
                break;
 
        case 7:
+       case 8:
                if (IS_IVYBRIDGE(dev)) {
                        intel_plane->can_scale = true;
                        intel_plane->max_downscale = 2;