drm/i915: Add 180 degree sprite rotation support
The sprite planes (in fact all display planes starting from gen4)
support 180 degree rotation. Add the relevant low level bits to the
sprite code to make use of that feature.
The upper layers are not yet plugged in.
v2: HSW handles the rotated buffer offset automagically
v3: BDW also handles the rotated buffer offset automagically
Testcase: igt/kms_rotation_crc
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Sagar Kamble <sagar.a.kamble@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
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 7f9a810..5ebac62 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4218,6 +4218,7 @@
#define DVS_YUV_ORDER_UYVY (1<<16)
#define DVS_YUV_ORDER_YVYU (2<<16)
#define DVS_YUV_ORDER_VYUY (3<<16)
+#define DVS_ROTATE_180 (1<<15)
#define DVS_DEST_KEY (1<<2)
#define DVS_TRICKLE_FEED_DISABLE (1<<14)
#define DVS_TILED (1<<10)
@@ -4288,6 +4289,7 @@
#define SPRITE_YUV_ORDER_UYVY (1<<16)
#define SPRITE_YUV_ORDER_YVYU (2<<16)
#define SPRITE_YUV_ORDER_VYUY (3<<16)
+#define SPRITE_ROTATE_180 (1<<15)
#define SPRITE_TRICKLE_FEED_DISABLE (1<<14)
#define SPRITE_INT_GAMMA_ENABLE (1<<13)
#define SPRITE_TILED (1<<10)
@@ -4361,6 +4363,7 @@
#define SP_YUV_ORDER_UYVY (1<<16)
#define SP_YUV_ORDER_YVYU (2<<16)
#define SP_YUV_ORDER_VYUY (3<<16)
+#define SP_ROTATE_180 (1<<15)
#define SP_TILED (1<<10)
#define _SPALINOFF (VLV_DISPLAY_BASE + 0x72184)
#define _SPASTRIDE (VLV_DISPLAY_BASE + 0x72188)