ChanServ changed the topic of #aarch64-laptops to: Linux support for AArch64 Laptops (Chrome OS Trogdor Devices - Asus NovaGo TP370QL - HP Envy x2 - Lenovo Mixx 630 - Lenovo Yoga C630 - Lenovo ThinkPad X13s - and various other snapdragon laptops) - https://oftc.irclog.whitequark.org/aarch64-laptops
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<travmurav[m]>
it was discussed briefly here, automotive platform uses completely different firmware so this would be of limited help to us
<travmurav[m]>
automotive platforms still give us iommu sids and afaiu mapping tables which is useful, but our iommu driver just sets stuff left by previous stage as PT so things work regardless
<steev>
ah
<travmurav[m]>
it's still interesting to follow I guess in case those changes later trickle down into compute platform too
<travmurav[m]>
x3e or w/e
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<maz>
sgerhold: no idea what does, but so far the CPU fan is only slowly spinning, and the PS fan is not running at all. Once I get an actual OS running, I expect to find out.
<maz>
JensGlathe[m]: my devkit doesn't scream. it takes some effort to get it to become noisy, but I have removed the cover once and for all.
<JensGlathe[m]>
ah
<JensGlathe[m]>
@sgerhold has a different cooler and no case
<travmurav[m]>
inb4 the "ec" mcu is on the other side of the board
<maz>
travmurav[m]: ah, that's a good point, I haven't lifted the board from the chassis, something might be lurking on the other side!
<maz>
OK, mini-x boots from EL2 to userspace, and resets. WAI.
<JensGlathe[m]>
new hardware fun
<maz>
yeah. and we don't seem to have an existing DT with that exact SoC.
<maz>
I'll give it a go with the x1p CRD DT to see if it is marginally better.
<JensGlathe[m]>
its x1-26-100
<JensGlathe[m]>
yeah probably
<travmurav[m]>
still just purwa I think, unless they disabled more things inside, but iirc only gpu was different meaningfully? and iirc freqs are firmware
<JensGlathe[m]>
x1p/x1 has some different thermal setup, but that should be defined now in x1p42100.dtsi
<maz>
spmi and pmic fail to probe, so no PCI (well, only a single root port, no devices)
<maz>
clocks are all over the shop
<mmediouni[m]>
<travmurav[m]> "still just purwa I think, unless..." <- A difference in Purwa as far as I remember is that it has integrated Wi-Fi (on Hamoa if you want that it's just a regular NIC over PCIe)
* travmurav[m]
thought no compute platforms include (semi-)integraded modem/wifi stuff and it's all pcie wifi
<Jasper[m]>
sc7280 doesn't
<travmurav[m]>
sc7280 is a rebranded mobile platform, it doesnt' count xD
<mmediouni[m]>
travmurav[m]: Varies sometimes. 8cx Gen 1/2 had integrated modem for LTE but external modem was often used to get that 5G label.
<travmurav[m]>
oh interesting, I guess it started being really different from 8c3
<travmurav[m]>
at least don't remember anyone talking about the modem hexagon that runs wifi firmware, as common on mobile platforms and 7c things
<mmediouni[m]>
btw the P at the end of the SoC name means no cellular modem
<mmediouni[m]>
Although for Snapdragon X they ended up reshuffling that naming convention
<mmediouni[m]>
travmurav[m]: think that it might be because Linux presumably doesn't support that config (yet?)
<travmurav[m]>
I mean, more like didn't even hear of any devices that would use that
<travmurav[m]>
I guess not like we're looking at every single one
<mmediouni[m]>
the SoC has it, whether OEMs would bother having a separate PCB (compared to Hamoa) to leverage it is another story
<travmurav[m]>
I guess makes sense
<travmurav[m]>
would be interesting to see if someone does, that should have some power savings I'd hope
<travmurav[m]>
(and even more if it's normal qcom's in-soc modem stuff, so cellular radio could've been attached too, instead of having a whole separate linux-capable soc for the modem)
<mmediouni[m]>
Purwa doesn't have cellular - it's strictly Wi-Fi + BT only on the radio side of things
<mmediouni[m]>
travmurav[m]: don't remember about the retail windows on arm devices but on the CRDs you had Linux running on the modem and you could login to it
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<travmurav[m]>
lol, my understanding is that pretty much all qcom modems run linux with OEM having some funny daemon that translates AT/MBIM into qmi for the hexagon
<mmediouni[m]>
Not quite, you can also choose a config where UEFI loads the modem FW and deals with those bits without jumping further to an OS. (and that's the configuration Apple uses)
<travmurav[m]>
interesting but makes sense if they only need to use the hexagon's qmi directly
<mmediouni[m]>
in a random note: on the newer modems they finally updated the AP away from a cortex-a7, it's aarch64 nowadays
<travmurav[m]>
yeah I've seen somewhere modern modems have like 4x a53 xD