ChanServ changed the topic of #asahi-dev to: Asahi Linux: porting Linux to Apple Silicon macs | General development | GitHub: https://alx.sh/g | Wiki: https://alx.sh/w | Logs: https://alx.sh/l/asahi-dev
<alyssa> marcan: is there code for PMP in m1n1?
<alyssa> re mapping pile of MMIO ranges for the coproc, isn't the DCP effectively the same?
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<marcan> alyssa: DCP has those largely in the DAPF
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<marcan> https://mrcn.st/p/tGRDY4yE I really do mean a pile for PMP
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<marcan> er, sorry, wrong prop
<marcan> https://mrcn.st/p/NQfWjZ7o this one
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<povik> marcan: ^ does those writes look like anything to you?
<povik> it's pmgr[23]+0xc000 from the point of view of ADT
<povik> *do those writes
<povik> i have been picturing them as bringing up some voltage rail on the board
<marcan> hm, are those pwrstate registers? let's see
<marcan> or rather perfstate
<marcan> povik: that's reg[0] in admac-sio
<marcan> wait sorry
<marcan> misread
<marcan> ... reg[1] in dockchannel-uart? really?
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<marcan> povik: oh wow, that init happens first thing after cpu init, must be something important
<marcan> ... why on earth would this have anything to do with the speaker amp :S
<povik> what about that power rail conjecture
<povik> AIUI you have one mini disassembled... :D
<marcan> not quite yet
<marcan> but it's not a rail
<marcan> the speaker amp is hooked up directly to the active rail
<marcan> there *is* a reset line, but it's just a gpio...
<marcan> povik: pop over to -re
<povik> i remeber there were voltage translaters/buffers of some sort on the connection between the speaker amp and the soc
<j_ey> (#asahi-re)
<povik> reluctantly, but okay
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<sven> some of the existing mappings for DCP are also in the ADT i think. it's just called segment-ranges there
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