Invention Grant
- Patent Title: Providing flexible management of heterogeneous memory systems using spatial quality of service (QoS) tagging in processor-based systems
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Application No.: US15272951Application Date: 2016-09-22
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Publication No.: US10055158B2Publication Date: 2018-08-21
- Inventor: Colin Beaton Verrilli , Carl Alan Waldspurger , Natarajan Vaidhyanathan , Mattheus Cornelis Antonius Adrianus Heddes , Koustav Bhattacharya
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: W&T/Qualcomm
- Main IPC: G06F12/0891
- IPC: G06F12/0891 ; G06F3/06 ; G06F12/0802 ; G06F13/16

Abstract:
Providing flexible management of heterogeneous memory systems using spatial Quality of Service (QoS) tagging in processor-based systems is disclosed. In one aspect, a heterogeneous memory system of a processor-based system includes a first memory and a second memory. The heterogeneous memory system is divided into a plurality of memory regions, each associated with a QoS identifier (QoSID), which may be set and updated by software. A memory controller of the heterogeneous memory system provides a QoS policy table, which operates to associate each QoSID with a QoS policy state, and which also may be software-configurable. Upon receiving a memory access request including a memory address of a memory region, the memory controller identifies a software-configurable QoSID associated with the memory address, and associates the QoSID with a QoS policy state using the QoS policy table. The memory controller then applies the QoS policy state to perform the memory access operation.
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Information query
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