drm/i915: fix tiling on IGDNG

It seems that on IGDNG the same swizzling setup always applys.
And front buffer tiling needs to set address swizzle in display
arb control too.

Fix plane tricle feed setting in v1 which should be disable bit,
and always setup address swizzle to let hardware care for buffer
tiling in all cases.

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 884757ce5b6..e38cd21161c 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -1864,6 +1864,7 @@
 #define   DISPPLANE_NO_LINE_DOUBLE              0
 #define   DISPPLANE_STEREO_POLARITY_FIRST       0
 #define   DISPPLANE_STEREO_POLARITY_SECOND      (1<<18)
+#define   DISPPLANE_TRICKLE_FEED_DISABLE        (1<<14) /* IGDNG */
 #define   DISPPLANE_TILED                       (1<<10)
 #define DSPAADDR                0x70184
 #define DSPASTRIDE              0x70188
@@ -2044,6 +2045,9 @@
 #define GTIIR   0x44018
 #define GTIER   0x4401c
 
+#define DISP_ARB_CTL    0x45000
+#define  DISP_TILE_SURFACE_SWIZZLING    (1<<13)
+
 /* PCH */
 
 /* south display engine interrupt */