Controlling a paging policy based on a requestor characteristic
AssigneeMicron Technology, Inc.
InventorJoseph M. Jeddeloh
Life of this patent
Estimating the term…
Abstract
A memory access control technique includes receiving a memory access request indication, performing a memory access operation in accordance with the memory access request (the memory access operation directed to a page of memory), determining a characteristic of a memory access requestor based on the memory access request indication, and executing a paging policy based on the determined characteristic. Requestor characteristics may include the requestor specifying a paging policy, identification of the particular requestor, and identification of the type of requestor. The paging policy may be to maintain the accessed page of memory in an open state, or to close the accessed page following completion of the memory access operation.
Claims25
A memory access control device, comprising:
- a receiver to receive a memory access request indication from a memory access requestor having a page selection portion, a command portion, and a requestor characteristic portion;
- and
- a control circuit, operatively coupled to the receiver, to generate signals to perform a memory access operation corresponding to the command portion, the control circuit further indicating a page of memory, corresponding the to page selection portion, is to be kept in an open state based on whether the memory access requestor is a block-oriented transfer block.
A computer system, comprising:
- a memory;
- and
- a bridge circuit having a memory controller circuit, the memory controller circuit operatively coupled to the memory and including
- a receiver to receive a memory access request indication from a memory access requestor having a page selection portion, a command portion, and a requestor characteristic portion, and
- a control circuit, operatively coupled to the receiver, to generate signals to perform a memory access operation corresponding to the command portion, the control circuit further indicating a page of memory, corresponding the to page selection portion, is to be kept in an open state based on whether the memory access requestor is a block-oriented transfer device.
A memory access control device, comprising:
- a receiver to receive a memory access request indication from a memory access requestor;
- and
- a control circuit to:
- perform a memory access operation in accordance with the memory access request indication, the memory access operation directed to a page of memory;
- determine a characteristic of the memory access requestor based on the memory access request indication;
- and
- execute a paging policy based on whether the memory access requestor is a block-oriented transfer device.
Dependencies are inferred from the claim text.