On 04/16/2014 10:14 AM, Stefan Kristiansson wrote: > > Yeah, I wasn't claiming that the Block RAM usage would be suffering, > the trade-off I'm speaking about is that we have to save a copy of the > tag data from *all* the ways (instead of just the way we are > updating). > With two ways as a maximum, we could work-around it by only saving the > "other" way, but with increasing ways, the data to save increases > quite quickly. > It's not a huge issue, just wanted to make clear that I don't have any > strong feelings for keeping the "one tag RAM for all ways". Ah, okay, got it. Sounds reasonable. > That's cache size/ways to page size, so with e.g. 4 ways you get max > 32 KB cache (since we have 8KB pages). > That should be enough for everybody, right? =) > Joking aside, sure, why not? > If we can make it conditional on cache size/ways > page size, I think > it'd be a win-win situation. > Okay, perfect, I have it on my mid-term TODO list :)
Bye, Stefan
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