3 ms·
> Qualcomm didn't implement TSO in the chips they made I’m not sure they can do that. Under Technology License Agreement, Qualcomm can build chips using ARM-d
by Const-me 2y ago
> Qualcomm didn't implement TSO in the chips they made
I’m not sure they can do that.
Under Technology License Agreement, Qualcomm can build chips using ARM-designed CPU cores. Specifically, Qualcomm SQ1 uses ARM Cortex A76/A55 for the fast/slow CPU cores.
I don’t think using ARM designed cores is enough to implement TSO, need custom ARM cores instead of the stock ones. To design custom ARM cores, Qualcomm needs architecture license from ARM which was recently been cancelled.
- jsheard 2y agoSQ1/SQ2 was their previous attempt, the recently released Snapdragon Elite chips use the fully custom Oryon ARM cores they got from the Nuvia acquisition. That acquisition is what caused the current licensing drama with ARM, but for the time being they do have custom cores.
- Const-me 2y ago> custom Oryon ARM cores they got from the Nuvia acquisition Nuvia was developing server CPUs. By now, I believe backward compatibility with x86 and AMD64 is rather unimportant for servers. Hosting providers and public clouds have been offering ARM64 Linux servers for quite a few years now, all important server-running software already has native ARM64 builds.