dncq (dmcq.delete@this.fano.co.uk) on April 1, 2021 11:26 am wrote:
>
> I just checked back at the top of this thread and the bit about Transactional Memory
> was in a blog about future architectures, not in one about ARMv9. Is there a place where
> it is actually described as part of ARMv9 base? It isn't mentioned at Anandtech.

Hmm. I definitely saw other places mention transactional memory (and you can google it).

But I wonder if that was perhaps confusion because at least some announcement had a pointer to the SVE2 presentation from a few years ago at Linaro Connect (Bankok 2019), that had TME in the same "ARM new technologies" paper.

And I'm pretty sure I saw TME mentioned on that ARM page when I followed the link originally.

But you're right that it's not there now.

Oh, I think ARM has edited it. You can still see signs of it here:

https://developer.arm.com/architectures/cpu-architecture/a-profile?_ga=2.138589363.1871010264.1617133520-261482344.1617133520

and right now it still says that the "Architecture version" for "Transactional Memory Extension (TME)" is Armv9.0-A.

But it does seem like TME might have been a mistake for v9.0-A and that ARM is editing it out.

Linus