{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10489881","patent":{"patent_number":"US-10489881","title":"Direct memory access for co-processor memory","assignee":null,"inventors":[],"filing_date":"2017-11-09T00:00:00.000Z","publication_date":"2019-11-26T00:00:00.000Z","cpc_codes":["G06T","B60W","G05D","G06F","G06F","G06F","G06F","G06F","G06F","G06T","B60W","G06F","G06F"],"num_claims":58,"abstract":"Direct memory access (DMA) is provided in a computing system that includes a central processing unit (CPU), CPU memory associated with the CPU, a graphics processing unit (GPU), GPU memory associated with the GPU, a storage device capable of direct memory access, and a peer-to-peer host bus to which the other components are electrically coupled, directly or indirectly. For each page of the GPU physical memory, a data structure representing the page of GPU physical memory is generated, a GPU virtual memory space is allocated, the GPU virtual memory space is mapped to a GPU physical memory space. Based on the data structure representing the page of GPU physical memory, the GPU physical memory space is mapped to a CPU virtual address associated with a user-space process. A direct input/output operation on the storage device is initiated using the CPU virtual address, which is mapped to the GPU physical memory, at least a bus address is generated based on the data structure representing the page of GPU physical memory, and a DMA operation is initiated based on the bus address to transfer data between the storage device and the GPU physical memory space through the peer-to-peer host bus without copying the data to the CPU memory."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Direct memory access for co-processor memory","description":"Direct memory access (DMA) is provided in a computing system that includes a central processing unit (CPU), CPU memory associated with the CPU, a graphics processing unit (GPU), GPU memory associated ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10489881","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-10489881","citation_suggestion":"Patentable. \"Direct memory access for co-processor memory\" (US-10489881). https://patentable.app/patents/US-10489881","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10489881","json":"https://patentable.app/api/llm-context/US-10489881","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T20:36:44.921Z"}