By Matlab you can implement any algorithm you need to solve via the Matlab functions or by designing you program via the Matlab programming language or via the Simulik  environment. In your case the proper method is  via the Simulik environment.

thanks

but the native simulink blocks are not available for xilinx system generator.

if it is? can you please tell me how to  do that?

Look at this

http://www.xilinx.com/support/documentation/xcell_articles/ultraScale-architecture-wireless.pdf

you can implement PMSM as in the following paper

then you can integrate the speed to obtain position

then the resolver model can be implemented as the following

input   : High frequency sinusoidal 

              motor position

output  : cos wsupplyt *coswrotort

               sinwsupplyt *coswrotort

The supply frequency between 7 to 10 kHz