ChanServ changed the topic of #asahi-dev to: Asahi Linux: porting Linux to Apple Silicon macs | Non-development talk: #asahi | General development | GitHub: https://alx.sh/g | Wiki: https://alx.sh/w | Logs: https://alx.sh/l/asahi-dev
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<nickchan>
proabbly would resend the a7-a11 perf support after -rc4
<nickchan>
a case of no one caring
<sven>
it might help to get some tested-by or reviewed-by tags by people who are using it to show that there's an active user base
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<fl0_id>
is there? (honestly curious)
<nickchan>
fl0_id: there are definitely some people writing github issue but i don't think they cared about performance counting
<nickchan>
like i make it work so i have a better idea of whether my capacity-dmips-mhz on a11 is apprioriate but really coremark itself is already enough
<nickchan>
also for spoofing ecore frequencies on a10/a10x/t2 appropriately
<nickchan>
and then the rest a7-a9 is just convenience since it is minimal effort to support those too
<nickchan>
so for the people that actually cared performance counting on those devices it would be me and the other person that's also doing some dev work (not in the way of kernel commits though)
<nickchan>
he is currenting working on hacking xnu for tracing and it's... kind of working? vbar and rvbar still points to m1n1 when xnu fully booted but the elephant in the room called pagetables are not solved yet
<nickchan>
and then the sysreg instructions are hooked by making them UNDEFINED
<nickchan>
for pagetables the idea current is to make some TLB maintance op UNDEFINED
<nickchan>
need to say hacking xnu like that obviously involves binary reverse enginnering and i will not pretend otherwise
<nickchan>
But it's all for less binary reverse enginnering later on
<nickchan>
currently relying on previous stages to load xnu though
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<nickchan>
currently the hacked up tracing bootchain looks like this: iboot loads xnu -> stage does seprom firmware load race and apply xnu security patches, passes xnu entry point to m1n1 -> m1n1 performed tracing patches, restored chcicken bits and branch to xnu as next stage
<nickchan>
ugh the details is probably not very suitable in this channel I will talk in #asahi-re
<fl0_id>
thanks for the explanation.
<fl0_id>
impressive for sure. was just wondering how man ppl were hacking on it or using it
<nickchan>
fl0_id: there are three github issues where people actually tried to compile things
<fl0_id>
nice
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<nickchan>
fl0_id: there is also one person that worked on postmarketOS that is intersted
<Tramtrist>
<3 postmarketOS
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