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Tuesday, April 29 • 11:30am - 12:20pm
Mastering the DMA and IOMMU APIs - Laurent Pinchart, Renesas Linux Kernel Team

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The DMA and IOMMU APIs receive too little love. Developers usually expect DMA memory management to just work and are not aware of the crucial importance of handling all details correctly. This results in reliability, portability, maintainability and performance issues, especially in embedded systems. This talk will describe the problems that the DMA API addresses and explain how to solve them with practical examples. Cache management, device tree support, CMA and IOMMU integration will be explained, and tips to address performance issues will be presented. If the audience shows interest for the topic the shortcomings of the APIs will also be discussed and attendees' feedback be recorded to serve as a base to develop future enhancements.
Speakers
avatar for Laurent Pinchart

Laurent Pinchart

Linux Kernel Developer, Renesas Linux Kernel Team
Laurent Pinchart has been a Linux kernel developer since 2001. He has written media-related Linux drivers for consumer and embedded devices and is one of the Video4Linux core developers. Laurent is the founder and owner of Ideas on board, a company specialized in embedded Linux design and development. He has given Linux media-related talks at the FOSDEM, LPC and ELC. He currently works with the Renesas Linux kernel team where he develops a wide... Read More →

Tuesday April 29, 2014 11:30am - 12:20pm
Salon I/II

Attendees (38)

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