drm/i915: Adding dbuf support for skl nv12 format.
Skylake nv12 format requires dbuf (aka. ddb) calculations
and programming for each of y and uv sub-planes. Made minor
changes to reuse current dbuf calculations and programming
for uv plane. i.e., with this change, existing computation
is used for either packed format or uv portion of nv12
depending on incoming format. Added new code for dbuf
computation and programming for y plane.
This patch is a pre-requisite for adding NV12 format support.
Actual nv12 support is coming in later patches.
Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@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 58627a3..344d132 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -5167,6 +5167,8 @@
#define _PLANE_KEYMAX_2_A 0x702a0
#define _PLANE_BUF_CFG_1_A 0x7027c
#define _PLANE_BUF_CFG_2_A 0x7037c
+#define _PLANE_NV12_BUF_CFG_1_A 0x70278
+#define _PLANE_NV12_BUF_CFG_2_A 0x70378
#define _PLANE_CTL_1_B 0x71180
#define _PLANE_CTL_2_B 0x71280
@@ -5253,6 +5255,15 @@
#define PLANE_BUF_CFG(pipe, plane) \
_PLANE(plane, _PLANE_BUF_CFG_1(pipe), _PLANE_BUF_CFG_2(pipe))
+#define _PLANE_NV12_BUF_CFG_1_B 0x71278
+#define _PLANE_NV12_BUF_CFG_2_B 0x71378
+#define _PLANE_NV12_BUF_CFG_1(pipe) \
+ _PIPE(pipe, _PLANE_NV12_BUF_CFG_1_A, _PLANE_NV12_BUF_CFG_1_B)
+#define _PLANE_NV12_BUF_CFG_2(pipe) \
+ _PIPE(pipe, _PLANE_NV12_BUF_CFG_2_A, _PLANE_NV12_BUF_CFG_2_B)
+#define PLANE_NV12_BUF_CFG(pipe, plane) \
+ _PLANE(plane, _PLANE_NV12_BUF_CFG_1(pipe), _PLANE_NV12_BUF_CFG_2(pipe))
+
/* SKL new cursor registers */
#define _CUR_BUF_CFG_A 0x7017c
#define _CUR_BUF_CFG_B 0x7117c
