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LoongArch32 Support Begins Taking Shape In Linux 6.19, GCC 16 (www.phoronix.com)

submitted 16 hours ago by cm0002@suppo.fi to c/linux@programming.dev

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The LoongArch CPU architecture changes have been merged for the Linux 6.19 merge window. This domestic Chinese CPU architecture inspired by MIPS and RISC-V began with 64-bit LoongArch64 but with Linux 6.19 the foundation is being laid for LoongArch32 as a 32-bit variant.

While most CPU architectures went from a 32-bit to 64-bit world, Loongson is working back from 64-bit to 32-bit. They've been working on the LoongArch32 ABI and with Linux 6.19 that initial kernel port is being wired up.

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[–] Rekall_Incorporated@piefed.social 1 points 9 hours ago

Why does LoongArch even need a 32-bit variant? Is this for embedded? Is LoongArch even suitable for embedded use cases (versus say those micro-controller designs from ARM, RISC-V or some of those fully custom embedded architectures)?