Memory tiering techniques in computing systems

A computing device, comprising:

• a processor;
• a first memory proximate to and configured as a cache for the processor;
• a second memory separate from and interfaced with the processor;
• and
• a memory controller configured to manage operations of the first and second memory, wherein the memory controller having instructions executable by the memory controller to:
• upon receiving a request from the processor to read data corresponding to a system memory section from the cache of the processor,
• retrieve, from a first section of the first memory, data from a data portion and metadata from a metadata portion of the first section of the first memory, the metadata from the metadata portion encoding data location information of multiple system memory sections in the first section of the first memory, a second section of the first memory, and one or more additional sections of the second memory;
• analyze the data location information in the retrieved metadata from the metadata portion of the first section in the first memory to determine whether the first section in the first memory currently contains data corresponding to the system memory section in the received request;
• and
• in response to determining that the first section in the first memory currently contains data corresponding to the system memory section in the received request, transmit the retrieved data from the data portion of the first section in the first memory to the processor in response to the received request.

A method of memory management in a computing device having a processor, a first memory proximate to and configured as a cache for the processor, a second memory separate from and interfaced with the processor, and a memory controller configured to manage operations of the first and second memory, the method comprising:

• receiving, at the memory controller, a request from the processor to write a block of data corresponding to a system memory section to the cache of the processor;
• and
• in response to receiving the request to write the block of data, with the memory controller,
• retrieving, from a first section of the first memory, metadata from a metadata portion of the first section in the first memory, the metadata from the metadata portion encoding data location information of multiple system memory sections in the first section of the first memory, a second section of the first memory, and one or more additional sections in the second memory;
• analyzing the data location information in the retrieved metadata from the metadata portion of the first section in the first memory to determine whether the first section in the first memory currently contains data corresponding to the system memory section in the received request;
• and
• in response to determining that the first section in the first memory currently contains data corresponding to the system memory section in the received request,
• writing the block of data corresponding to the system memory section to the first section in the first memory;
• and
• indicating, to the processor, a completion of writing the block of data.