公开(公告)号：US20250021478A1

公开(公告)日：2025-01-16

申请号：US18349206

申请日：2023-07-10

Applicant: QUALCOMM Incorporated

Inventor： Manish GARG ,  Pratibind Kumar JHA ,  Prakhar SRIVASTAVA ,  Santhosh Reddy AKAVARAM

IPC: G06F12/02

Abstract: Methods that may be performed by a host controller and a memory controller of a computing device. The method synchronizes memory tables between the storage device and a host device by modifying an indicator in a first memory table on the storage device in response to a change in a memory mapping, the first memory table mapping logical addresses to physical addresses of memory on the storage device, the indicator identifying one or more address mapping changes of the first memory table, notifying the host device that the first memory table has been modified, and transmitting to the host device at least a portion of the first memory table including the one or more address mapping changes. The storage device processes memory requests from the host device based on one or more addresses affected by the one or more address mapping changes.

公开(公告)号：US20250044945A1

公开(公告)日：2025-02-06

申请号：US18365700

申请日：2023-08-04

Applicant: QUALCOMM Incorporated

Inventor： Pratibind Kumar JHA ,  Manish GARG ,  Prakhar SRIVASTAVA ,  Santhosh Reddy AKAVARAM ,  Hung VUONG ,  Abhishek GHOSH ,  Shubham KANWAL

IPC: G06F3/06 ,  G06F12/0802 ,  G06F12/1009

Abstract: A host device includes system memory that includes a logical-to-physical (L2P) cache and a second cache. The host device also includes a host controller interface (HCI) configured to be coupled to a flash memory device. The HCI is configured to determine that a particular region of a L2P address mapping table is to be removed from the L2P cache. The L2P address mapping table is configured to include mappings between logical memory addresses and physical memory addresses of the flash memory device. The HCI is also configured to identify a particular sub-region of the particular region having an access metric that satisfies a retention criterion. The HCI is further configured to store the particular sub-region into the second cache. The HCI is also configured to remove the particular region from the L2P cache.