According to the article Nvidia has updated their Nvapi for Shader Intrinsics, which can be used Kepler, Maxwell and Pascal.
https://developer.nvidia.com/unlocking-gpu-intrinsics-hlsl
https://developer.nvidia.com/reading-between-threads-shader-intrinsics
https://developer.nvidia.com/unlocking-gpu-intrinsics-hlsl
https://developer.nvidia.com/reading-between-threads-shader-intrinsics