System, apparatus and method for providing a fabric for an accelerator

A non-transitory machine-readable medium having stored thereon instructions, which if performed by a machine cause the machine to perform a method comprising:

• receiving a request from an accelerator in an accelerator request decoder of an accelerator die coupled to the accelerator, the accelerator die comprising the accelerator;
• performing a first level decode of the request in the accelerator request decoder;
• based on the first level decode, directing the request to a local memory associated with the accelerator if the request is a coherent request;
• and
• based on the first level decode, directing the request to a non-coherent request router of the accelerator die if the request is a non-coherent request.

A system comprising:

• a computing die including one or more cores;
• a system memory coupled to the computing die, the system memory to be maintained coherently with the computing die;
• an accelerator die coupled to the computing die, the accelerator die including at least one accelerator, an accelerator request decoder to perform a first level decode of requests from the at least one accelerator and direct the requests based on the first level decode, the accelerator request decoder including a memory map to identify a first address range associated with a local memory and a second address range associated with the system memory, and a non-coherent request router to receive non-coherent requests from the accelerator request decoder and perform a second level decode of the non-coherent requests;
• and
• a local memory coupled to the accelerator die, the local memory to be maintained coherently with the accelerator die and non-coherently with the computing die and the system memory.