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This article provides a comprehensive overview of China's leading domestic CPU vendors—including HaiGuang, Kunpeng, Loongson, Shenwei, Feiteng, and Zhaoxin—detailing their architectures, performance characteristics, market positioning, and the national initiatives that support their development.
Linux kernel version 5.19 has entered its fifth release candidate (RC5), with Linus Torvalds noting a low patch count focused on driver fixes, architecture updates, and filesystem and networking improvements, and introducing support for LoongArch CPUs, Apple NVMe, Zstd-compressed firmware, and FAT32 creation timestamps, with the stable release slated for late July.
The article introduces LoongArch, Loongson's self‑defined RISC instruction set architecture, detailing its evaluation approval, instruction count, format extensions, binary translation compatibility with MIPS, x86, ARM and RISC‑V, ecosystem plans, IP core updates, and the company’s strategy to build a domestic CPU ecosystem.
Loongson, a leading Chinese chip maker, has announced it will drop all US‑origin technology and create a fully domestic instruction set called LoongArch—compatible with MIPS yet independent—while the article also details the complex history of MIPS licensing, US export restrictions, and the geopolitical pressures shaping China’s push for self‑reliant processor architectures.