Memory controller partitioning for hybrid memory system

A hybrid controller to manage memory transactions between a memory controller and volatile memory and to schedule cache-maintenance operations between the volatile memory and nonvolatile memory, the hybrid controller comprising:

• control logic to:
• pass a block address of a block of the volatile memory to the memory controller;
• receive, responsive to the block address, a cache-line address within the block and timing information specifying an access time slot;
• and
• copy a cache line from the nonvolatile memory to the cache-line address during the access time slot.

A memory module comprising:

• nonvolatile memory defining a nonvolatile address space, the nonvolatile address space to store data at nonvolatile-memory addresses;
• volatile memory defining a volatile address space, the volatile address space to cache the data stored in the nonvolatile address space;
• and
• a hybrid controller linked to the nonvolatile memory and the volatile memory, the hybrid controller to:
• transmit a block address of a block of the volatile memory;
• receive, responsive to the block address, a cache-line address within the block and timing information specifying an access time slot;
• and
• copy a cache line from the nonvolatile memory to the cache-line address during the access time slot.

A compute system comprising:

• nonvolatile memory having a nonvolatile address space, the nonvolatile address space to store data at nonvolatile-memory addresses;
• volatile memory having a faster response time than the nonvolatile memory and a volatile address space providing less storage than the nonvolatile address space, the volatile address space to cache a portion of the data stored in the nonvolatile address space;
• a hybrid controller linked to the nonvolatile memory and the volatile memory, the hybrid controller to:
• pass a block address of a block of the volatile memory;
• receive, responsive to the block address, a cache-line address within the block and timing information specifying an access time slot;
• and
• copy a cache line from the nonvolatile memory to the cache-line address during the access time slot;
• and
• a memory controller linked to the hybrid controller to receive the block address and transmit the cache-line address and the timing information specifying the access time slot to the hybrid controller responsive to the block address.