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I work with RISC-V these days.many AI chips are using RISC-V. A non-technical perspective about RISC-V: China is leading to some extent in RISC-V land(Sifive w

I work with RISC-V these days.many AI chips are using RISC-V. A non-technical perspective about RISC-V: China is leading to some extent in RISC-V land(Sifive works with Hifive in China, Alibaba released its RISC-V,etc). China could not license x86, could not acquire MIPS, tried to get part of ARM now(the China ARM company is fighting with ARM), but the big land needs to "own" a CPU core at will desperately, RISC-V fits perfectly well.

Qem 5y ago
Did they give up on Loongson? I thought they already had a domestic core architecture.
- hajile 5y ago
  That was just MIPS without paying licensing fees. MIPS has lost most support and I doubt China wants to foot the bill for maintaining everything. RISC-V allows them to offload most of the hard software parts to other countries.
  - userbinator 5y ago
    ...and RISC-V is almost a clone of MIPS anyway, so no surprise there.
    - hajile 5y ago
      In what way is RISC-V a clone of MIPS? There are VERY different ideas most notably using variable-length instructions rather than one instruction width (begging the question of whether RISC-V is actually RISC).
      - snvzz 5y ago
        An argument could be made that the instructions look similar. Very RISC. Their encoding is completely different, and that's what matters.
- pabs3 5y ago
  No, they are even working on upstreaming support for LoongArch and getting distros to support it. For eg: https://wiki.debian.org/LoongArch https://wiki.debian.org/LoongArch https://gcc.gnu.org/pipermail/gcc-patches/2021-November/585555.html https://gcc.gnu.org/pipermail/gcc-patches/2021-November/5855... https://lists.llvm.org/pipermail/llvm-dev/2021-December/154371.html https://lists.llvm.org/pipermail/llvm-dev/2021-December/1543...