Installing man 9 pages for section kernel-api

Hi I am trying to install manual pages for linux kernel apis. I have downloaded source file of version 4.12.1. I tried to install with the below commands make mandocs. But i am unable to see man pages for kernel-api. With some searching i found that i don't see kernel-api.tmpl in the source file. Can some one help to get that file or please provide instructions in installing man pages for kernel api. Thanks Saketh