I am making a project in ARM Cortex-M4 based TI Tiva C series launch pad.. I want to know how to use CMSIS for the board

I have created a project code in C for Texas C series TM4C123G launchpad. Now I want to convert my C code into CMSIS.

I don't know how to start with converting my code to CMSIS code.

How to do it in Code Composer Studio IDE.

If anybody knows please reply..

Thank you