LoongArch Picks Up New CPU Capabilities With Linux 6.1

Written by Michael Larabel in Hardware on 13 October 2022 at 04:00 AM EDT. 1 Comment
HARDWARE
While initial LoongArch CPU support merged in Linux 5.19, it was still in an immature state and since then missing features and functionality continue to be ironed out. With Linux 6.0 came LoongArch PCI support and other changes while for Linux 6.1 come additional features for this Chinese CPU architecture derived from MIPS64 and some elements of RISC-V.

Linux 6.1 already landed EFI boot support for LoongArch while on Wednesday the main LoongArch CPU port updates were merged.


This cycle there is refactoring of the TLB/cache operations, qspinlock support, support for perf events, Kexec and Kdump handling, a generic BUG() handler implemented for the architecture, eBPF JIT support, an ACPI-based laptop driver, and updates to the default kernel configuration (defconfig).

Overall a busy feature cycle for LoongArch with Linux 6.1. The full list of changes can be found via this Git merge.
1 Comment
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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 20,000 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, LinkedIn, or contacted via MichaelLarabel.com.

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