LoongArch With Linux 6.4 Lands Optimizations, New Functionality

[starbg]

RISC-V was only developed in 2010, but LoongArch + the Loongson processors have been arround since 2002.
I guess China mainly developed these processors to be independent from other manufacturers and have their own design + supply chain mainly for military applications.. You don´t need that much processing power to control a missile or a fighter jet.
Furthermore for national security critical applications you might not want to use a SoC or processor developed by you potentiel enemy which might have hardware / firmware backdoors.

They are developing RISC-V Cores as well b.t.w. they even OpenSourced them: https://github.com/OpenXiangShan/XiangShan
Alibaba / T-Head developes commercial RISC-V cores + SoCs as well, which are availiable already.

Any processor has a "back door". The founder of Godson said that the processor needs to have a way to debug during the design process, but for the complex system of the microprocessor, removing the debug interface in the finished product means changing The configuration of the processor does not have the potential to introduce new problems, so this interface is generally not removed. It is understandable that powerful countries will seek their sovereignty in key areas. What they are afraid of is not the back door left by hostile forces, but these inherent "back doors" that they cannot control in their own applications. The Nintendo switch was cracked because a strong security model cannot have its own supply chain, so the bottom layer of the system will be cracked through the debugging interface of the NVIDIA processor.

[aonix]

pre Loongson 3A5000 is the MIPS compatible processor

The 3A5000 loongarch architecture is not MiPs-compatible, except that it supports x86, arm, riscv, and mips instructions using binary translation technology.
As far as we can see, the mips program does not run on the 3a5000, and the compiled binary is different.
There are now some x86 linux programs that can run directly, while windows x86 can run under Wine. The most efficient, of course, is to run loongarch directly