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US Patent 11372777 Memory interface between physical and virtual address spaces

Patent 11372777 was granted and assigned to Imagination Technologies on June, 2022 by the United States Patent and Trademark Office.

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Is a
Patent
Patent
1

Patent attributes

Patent Applicant
Imagination Technologies
Imagination Technologies
1
Current Assignee
Imagination Technologies
Imagination Technologies
1
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
113727771
Patent Inventor Names
Mark Landers1
Martin John Robinson1
Date of Patent
June 28, 2022
1
Patent Application Number
171613411
Date Filed
January 28, 2021
1
Patent Primary Examiner
‌
Aracelis Ruiz
1
CPC Code
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G06F 12/0833
1
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G06F 12/1009
1
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G06F 12/1018
1
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G06F 12/1063
1
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G06F 12/0831
1
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G06F 12/0828
1

A memory interface for interfacing between a memory bus addressable using a physical address space and a cache memory addressable using a virtual address space, the memory interface comprising: a memory management unit configured to maintain a mapping from the virtual address space to the physical address space; and a coherency manager comprising a reverse translation module configured to maintain a mapping from the physical address space to the virtual address space; wherein the memory interface is configured to: receive a memory read request from the cache memory, the memory read request being addressed in the virtual address space; translate the memory read request, at the memory management unit, to a translated memory read request addressed in the physical address space for transmission on the memory bus; receive a snoop request from the memory bus, the snoop request being addressed in the physical address space; and translate the snoop request, at the coherency manager, to a translated snoop request addressed in the virtual address space for processing in connection with the cache memory.

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