RISC-V Changes Merged For Linux 4.18, Early Perf Subsystem Work
Written by Michael Larabel in Hardware on 16 June 2018 at 12:06 AM EDT. 6 Comments
HARDWARE --
Initial RISC-V architecture support was added to the Linux 4.15 kernel and in succeeding kernel releases have been mostly modest updates. With Linux 4.18 the RISC-V changes are on the small side still, but with a few notable additions for this open-source, royalty-free processor ISA.

The most prominent change for RISC-V in Linux 4.18 appears to be that enough support for the perf subsystem has now been implemented that this performance profiling kernel code can begin to work with RISC-V's ISA-defined performance counters.

Aside from that early work on perf support, it's mostly small additions as outlined via the Git pull.

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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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