disp: msm: sde: add plane staging management for 4LM topologies

When a 4LM topology is used each plane attached to a CRTC
is tagged with a L/R layout value and an offset value
depending on where destination X coordinate lands on the display.
The layout information is used to determine SSPP to LM
pair mapping and local coordinate space.

This change also handles source-split and Z-order
validation checks for planes staged on different mixer
pairs.

Change-Id: I1b20223388e65fc36a8b379ad9df23a277fcd1a5
Signed-off-by: Amine Najahi <anajahi@codeaurora.org>

msm/sde/sde_rm.h

@@ -14,6 +14,12 @@
 #define SINGLE_CTL	1
 #define DUAL_CTL	2
 
+#define TOPOLOGY_QUADPIPE_MERGE_MODE(x) \
+	(x == SDE_RM_TOPOLOGY_QUADPIPE_3DMERGE ||\
+		x == SDE_RM_TOPOLOGY_QUADPIPE_3DMERGE_DSC ||\
+		x == SDE_RM_TOPOLOGY_QUADPIPE_DSCMERGE ||\
+		x == SDE_RM_TOPOLOGY_QUADPIPE_DSC4HSMERGE)
+
 /**
  * enum sde_rm_topology_name - HW resource use case in use by connector
  * @SDE_RM_TOPOLOGY_NONE:                 No topology in use currently
@@ -337,6 +343,16 @@ static inline int sde_rm_topology_get_num_lm(struct sde_rm *rm,
 	return rm->topology_tbl[topology].num_lm;
 }
 
+/**
+ * sde_rm_topology_is_quad_pipe - check if the topology used
+ *	is a quad-pipe mode one
+ * @rm: SDE Resource Manager handle
+ * @state: drm state of the crtc
+ * @return: true if attached connector is in quad-pipe mode
+ */
+bool sde_rm_topology_is_quad_pipe(struct sde_rm *rm,
+		struct drm_crtc_state *state);
+
 /**
  * sde_rm_ext_blk_create_reserve - Create external HW blocks
  *	in resource manager and reserve for specific encoder.