The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 28, 2021
Filed:
Dec. 20, 2019
Advanced Micro Devices, Inc., Santa Clara, CA (US);
Vydhyanathan Kalyanasundharam, Santa Clara, CA (US);
Narendra Kamat, Santa Clara, CA (US);
Advanced Micro Devices, Inc., Santa Clara, CA (US);
Abstract
Systems, devices, and methods for direct memory access. A system direct memory access (SDMA) device disposed on a processor die sends a message which includes physical addresses of a source buffer and a destination buffer, and a size of a data transfer, to a data fabric device. The data fabric device sends an instruction which includes the physical addresses of the source and destination buffer, and the size of the data transfer, to first agent devices. Each of the first agent devices reads a portion of the source buffer from a memory device at the physical address of the source buffer. Each of the first agent devices sends the portion of the source buffer to one of second agent devices. Each of the second agent devices writes the portion of the source buffer to the destination buffer.