[libre-riscv-dev] wishbone does not have byte-enable (but it does have user-tags)

Cole Poirier colepoirier at gmail.com
Tue Jun 9 20:18:15 BST 2020

On Jun 9 2020, at 10:10 am, Luke Kenneth Casson Leighton <lkcl at lkcl.net> wrote:
> also i've noticed that there is the concept of user and cycle "tags"
> which can be optionally added.  this would give us a way to do
> cache-line tagging and many other things.

I have an ignorant question about wishbone. Is it possible that there is
functionality in OpenCAPI that would be beneficial to extend wishbone
with, and not time prohibitive (not for Oct 2020 tapeout but for the
quad-core gpu capable version)? This is assuming that implementing a
part of OpenCAPI in wishbone is legally permitted, which I am also
ignorant of.


More information about the libre-riscv-dev mailing list