Discussion Future ARM Cortex + Neoverse µArchs Discussion

[Ghostsonplanets]

Huh. What's a Lingxi?

Huawei own self-developed ISA. Currently deployed on smaller scale electronics. It's basically a second option in case US is successful at disallowing Huawei of developing Arm designs.

 

[SarahKerrigan]

Huawei own self-developed ISA. Currently deployed on smaller scale electronics. It's basically a second option in case US is successful at disallowing Huawei of developing Arm designs.

Do you know if there are any docs available? I looked it up and only saw stuff from what seemed like very dubious blogs and "news" sites. One claimed it was a VLIW (and also insisted this was somehow revolutionary.)

 

[Henry swagger]

https://wccftech.com/mediatek-dimensity-9400-new-arm-blackhawk-cpu-architecture/ arm is looking good

 

[Nothingness]

Do you know if there are any docs available? I looked it up and only saw stuff from what seemed like very dubious blogs and "news" sites. One claimed it was a VLIW (and also insisted this was somehow revolutionary.)

I'm not sure what you found, so I'll post what I did, sorry if that's already known and I don't assume responsibility for site errors

Rattibha

en.rattibha.com

compatible chipset ecosystem for ARM and future Lingxi (Loongson LoongArch model of binaries) with Kernel Abstract Layer

Could it mean it's a derivative of Loongson?

LoongArch leads to this: https://docs.kernel.org/arch/loongarch/introduction.html
So it's supported by the Linux kernel. I also had hits with LLVM and gcc. At this point I became lazy and didn't look any further if there were pipeline models.

There are also mentions of LoongArch in An Instruction Inflation Analyzing Framework for Dynamic Binary Translators.

 

[Shivansps]

As you can see there, things arent looking too good for Mali.

 

[SarahKerrigan]

I'm not sure what you found, so I'll post what I did, sorry if that's already known and I don't assume responsibility for site errors

Rattibha

en.rattibha.com

Could it mean it's a derivative of Loongson?

LoongArch leads to this: https://docs.kernel.org/arch/loongarch/introduction.html
So it's supported by the Linux kernel. I also had hits with LLVM and gcc. At this point I became lazy and didn't look any further if there were pipeline models.

There are also mentions of LoongArch in An Instruction Inflation Analyzing Framework for Dynamic Binary Translators.

Yeah, Loongarch is the current ISA of Loongson - it looks like a de-legacied MIPS without a lot of the nastiness (delayed braches, hi/lo); from what I've seen it's not a bad ISA design. There are available manuals. The current-gen Loongson, which uses it, is also a very reasonable microarchitecture with decent performance numbers. Chipsandcheese had an overview recently with benchmarks here.

It seems like the amount of solid info around Lingxi is small - there's a awful lot of speculation on clickbaity sites that seems to extend from "Huawei filed a trademark."