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Thursday, August 21 • 3:30pm - 4:20pm
Linux Kernel Power Management (PM) Framework for ARM 64-bit Processors - Lorenzo Pieralisi, ARM

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The 32-bit ARM kernel supports a wide variety of processors harking back to ARM v4 architecture up to the latest v7 SMP processors. This huge legacy forced kernel developers to adapt the power management code for the newest processors (eg v7 multi-cluster systems) to an infrastructure that was developed to support simpler uniprocessor (UP) ARM architectures, resulting in code fragmentation and lack of unified drivers.
The brand new ARM v8 architecture provides kernel developers a clean slate to start developing new code, a nice opportunity to learn lessons from the past and bring about a kernel power management (PM) subsystem completely generic and up to the
latest standards. This talk will provide details of the undergoing effort carried out at ARM to develop a kernel PM framework for ARM v8 systems, with kernel design details of the respective DT and ACPI implementations.

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Speakers
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Lorenzo Pieralisi

Linux Kernel Developer, ARM
Lorenzo Pieralisi has worked at ARM Ltd since March 2010 as a Linux kernel developer. He obtained a Laurea degree (summa cum laude) in Microelectronics from the University of Ancona in March 2002. He carried out a PhD in Microelectronics at INP Grenoble where he defended his thesis in 2005 on on-chip interconnections for Advanced Computing. Prior to joining ARM, he worked at the AST (Advanced System Technology) Lab of STMicroelectronics in... Read More →


Thursday August 21, 2014 3:30pm - 4:20pm
Parlor C

Attendees (29)