Paul Berry
ccae1b1cd7
To implement Gen7's CMS MSAA layout, we need an extra buffer, the MCS (Multisample Control Surface) buffer. This patch introduces code for allocating and deallocating the buffer, and storing a pointer to it in the intel_mipmap_tree struct. No functional change, since the CMS layout is not enabled yet. Reviewed-by: Chad Versace <chad.versace@linux.intel.com>