Description

In the example design of the partial reconfiguration tutorial (UG947), when I run a DRC check for HDPR, I receive the critical DRC warning HDPR-45.

report_drc -checks [get_drc_checks HDPR*]

Critical warning message:

HDPR-45#1 Critical Warning
Reconfig Pblock should range all grid types covered by the Pblock rectangles 
The Pblock for Reconfigurable cell 'inst_shift' spans site types that are not included in the Pblock range. To ensure routability, it is strongly recommended that the following ranged sites to be included in the Pblock:
DSP48

However, the pblock in question does NOT span any DSP48 resource types, only CLB and BRAM. 

Even with an optimal pblock (one column each of CLB and BRAM) this critical warning is displayed.

Solution

This critical DRC warning is false and can be ignored safely.

This issue is fixed in the 2014.4 release of Vivado Design Suite.