marcan changed the topic of #asahi to: Asahi Linux: porting Linux to Apple Silicon macs | Not ready for end users / self contained install yet. Soon. | General project discussion | GitHub: https://alx.sh/g | Wiki: https://alx.sh/w | Topics: #asahi-dev #asahi-re #asahi-gpu #asahi-stream #asahi-offtopic | Keep things on topic | Logs: https://alx.sh/l/asahi
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<M0x8FF[m]>
hello
<marcan>
streaming in a bit on #asahi-stream
<M0x8FF[m]>
okay!
<M0x8FF[m]>
@marcan is there an asahi matrix space?
<marcan>
matrix is bridged to IRC
<marcan>
we don't have matrix-native channels
<M0x8FF[m]>
i see
<Glanzmann>
jannau: Nice.
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<caleb010[m]>
caleb010: The linux kernel doesn't load, i get a giant asahi logo and nothing else. Did i forget something?
<landscape15[m]>
caleb010: Regarding your doubts about kernel modules, the following is the simplest definition I found:
<landscape15[m]>
“Modules are pieces of code that can be loaded and unloaded into the kernel upon demand. They extend the functionality of the kernel without the need to reboot the system. For example, one type of module is the device driver, which allows the kernel to access hardware connected to the system.“
<landscape15[m]>
“Without modules, we would have to build monolithic kernels and add new functionality directly into the kernel image. Besides having larger kernels, this has the disadvantage of requiring us to rebuild and reboot the kernel every time we want new functionality.”
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<caleb010[m]>
landscape15: wow thanks! This seems to be clear.
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<marcan>
pushed the battery management stuff to smc/work, if anyone wants to poke around (CONFIG_CHARGER_MACSMC)
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<marcan>
the basics mostly done, might just add manual charge control (I think I found the key) and I might make the AC charger bit a separate PS device from the battery
<mps>
marcan: \o/
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<joske>
Woohoo 🎉
<j`ey>
marcan: sweet of you to put the co-authored :)
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<ChaosPrincess>
booting from u-boot, should i use the dtb from that or from linux kernel?
<mps>
ChaosPrincess: I had to add DTB from kernel to get rtc working
<mps>
I mean, DTS and rebuild u-boot
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<kettenis>
at this point, if you want to test kernel diffs that add stuff to the dts with u-boot, my recommendation is to take the diffs from the relevant dts commits and apply them to the u-boot dts
<kettenis>
if you don't know how to do that, wait for things to show up on the asahi branch and ask me to update the u-boot dts
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<Glanzmann>
jannau: With your u-boot variant, does the internal keyboard work? Is it good for the pro/max. I'm asking because I sent Jens Axboe some instructions and he ends up with black screen, asahi logo and no output. He is on a pro/max with untethered m1n1 kernel options dtb, kernel. I think the current issue is that the kernel config I sent him has CONFIG_DRM_SIMPLEDRM=m and he does not have the kernel module
<Glanzmann>
inside the rootfs.
<j`ey>
marcan: oh neat you added notification support in smc
<Glanzmann>
marcan: Nice job on the smc, but I just read the wrap up in irc.
<axboe>
Glanzmann: trying with =y for DRM_SIMPLEDRM now
<mps>
nice, battery works
<mps>
thanks marcan \o/
<Glanzmann>
axboe: Perfect.
<mps>
what else to check
<Glanzmann>
axboe: I just sent you another email.
<Glanzmann>
axboe: If that does not work, I build a new rootfs containing your kernel.
<axboe>
got it, thanks
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<axboe>
Glanzmann: yep that was it!
<Glanzmann>
Perfect. :-)
<axboe>
oh boy
<Glanzmann>
I'll fix the config.
<jannau>
Glanzmann: the keyboard does not work in u-boot but works for me in linux with SPI_HID_APPLE_OF + HID-APPLE + HID-MAGICMOUSE
<axboe>
kbd seems to throw a bunch of "spi-hid-apple-of spi1.0: Read package crc mismatch"
<j`ey>
axboe: thats "normal", it should still work?
<axboe>
yep it works
<Glanzmann>
axboe: Personally I use 'fvwm2' and 'lightdm', but apt isntall gnome with wayland also works.
<axboe>
perfect, should be pretty straight forward from here - will get the fw over and wifi up so it can get setup
<mps>
works fine `/sys/class/power_supply/macsmc-battery > egrep . * | tpaste` => https://tpaste.us/9P64
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<Glanzmann>
axboe: Easiest way is usb stick, if you have the drivers, if you don't just use the efi partition with vfat to transfer files in.
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<Glanzmann>
axboe: If the wifi does not come up, reboot, or rmmod brcmfmac and brcmutil and load them again. I sometimes had to do that twice in order to get wifi.
<Glanzmann>
mps: I had today my macbook air accidently with a closed lid for 12 hours when the screen was on. No heat. So maybe the last time it was something different.
<axboe>
I'll move it to the efi partition, usb stick not being probed
<Glanzmann>
also build a kernel deb for the modules
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<Glanzmann>
axboe: make -j $(( 2* `nproc`)) V=0 bindeb-pkg
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<axboe>
got modules in the image, and moved fw to the efi partition - lets see if that does it :)
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<Glanzmann>
either reboot or multiple unloading loading should do the trick
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<Glanzmann>
axboe: consult quickstart.txt in /root for details
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<axboe>
nice, wifi works
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<mps>
Glanzmann: heh, 'Heisenberg' in action. good it doesn't overheat now
<Glanzmann>
axboe: Perfect. :-)
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<mps>
axboe: hi, and welcome (we worked on fixing io_uring libs to work on musl about year or two ago, if you remember)
<axboe>
mps: thanks - and I remember, wanting to make sure io_uring works as well as it can on arm is part of the reason why I'm here ;)
<mps>
axboe: it works fine on armv7 and aarch64, I tested it on alpine linux
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<m1-axboe>
now live ;)
* mps
going to make awesome wm battery applet
<axboe>
mps: I figured it would, mainly just curious on whether we have the right load acquire / store release in terms of best performance
<j`ey>
axboe: then I look foward to your X MOPS on AArch64 tweets :P
<axboe>
j`ey: hah, we'll see what it can do ;)
<axboe>
hard to stuff optane into it, but will be interesting to see how fast the builtin nvme is
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<j`ey>
axboe: you already know about the 'flush problem' (from twitter)
<axboe>
yep
<axboe>
once u-boot works I'll try and get into the kernel a bit more. seems a bit of a hassle even with the untethered boot now
<axboe>
but tons of thanks to Glanzmann for writing these guides and helping me get this going, would've waited a bit otherwise
<j`ey>
tethered boot makes trying kernel changes really easy!
<sven>
ugh.. the random-write-flush problem. someone confirmed the same thing also happens on the T2 macs fwiw (i.e. those who also need NVME_QUIRK_SKIP_CID_GEN)
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<axboe>
j`ey: but a pita for other reasons :)
<j`ey>
axboe: I dont know your setup, I just use an rpi as the otherside of the tethering and it works great!
<Glanzmann>
axboe: You're welcome. I'll fix the CONFIG_DRM_SIMPLEDRM=y thing. I also begun to write a poor mans debian installer: https://tg.st/u/pmdi.pl It works but is not ready for end users. :-)
<axboe>
j`ey: a couple of laptops and build boxes, so anything I can do on a build host and copy over. rpi sounds pretty handy, but don't really have a monitor setup...
<Glanzmann>
If you install lots of debian packages, it might help if you prepend it with 'eaymydata' which eats sync and similiar system calls.
<axboe>
install is super slow indeed
<axboe>
I discussed this with sven and others on twitter
<axboe>
something to look into
<Glanzmann>
j`ey: Wait for the m1n1 chainload from disk support. But yes, after doing that yesterday only 3 times, I already got sick of the tethered m1n1 and thankful for m1n1/u-boot/grub boot chain.
<sven>
and it looks like it's indeed the controller which just hates flushes :(
<Glanzmann>
axboe: I always run litteray: eatmydata apt-get install ...
<axboe>
sven: remind me, it's random if a flush takes a long time or not?
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<axboe>
or are they consistently very slow
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<sven>
consistently if you first write random blocks and then issue the flush
<axboe>
ok, flush with unacked writes
<axboe>
I seem to recall you said that osx does issue flushes
<sven>
yes, but much less frequent when using fio with the same settings
<Glanzmann>
ChaosPrincess: We wait for the spi patches to be pulled in for a month or so. But I really look forward to the next asahi branch now with the smc.
<axboe>
Glanzmann: glad to see fio still works with openbsd :)
<axboe>
sven: ok
<sven>
i've brought up the controller inside m1n1 as well and it also happens there
<ChaosPrincess>
Glanzmann: i was talking about the fixes in jannau's branch that makes the spi keyboard work when booting from u-boot
<axboe>
I'm assuming you checked on osx doing some non-standard setup bits?
<sven>
yes, it issues two or three vendor specific commands. one of them sends the current time and the others read some information about the actual flash storage layout
<sven>
but doing those in linux didn't change any behavior
<Glanzmann>
ChaosPrincess: I see.
<ChaosPrincess>
commit hash 9ce9060dea91951a330feeeda3ad636bc88c642c is very very missing from asahi :P
<axboe>
sven: ok
<axboe>
Glanzmann: nice
<mps>
marcan: /sys/class/power_supply/$bat_name dir usually have 'present' file
<sven>
the T2 macs have the exact same controller fwiw. those just have that T2 chip that proxies it to the x86 core over pcie. i can actually flip a bit in a undocumented register and then the M1 controller disables its weird IOMMU and instead also needs that quirk to increase the sq entry size to 128 bytes
<mps>
marcan: did you forgot it or I missed something when building kernel and u-boot
<j`ey>
mps: just missing from the driver
<mps>
j`ey: thanks for info (I'm not in a hurry, just noted this)
<j`ey>
there's quite a few properties the driver can report, so maybe a few others missing
<mps>
j`ey: most are there as I see, got awesome wm battery status widget working fine
<Glanzmann>
mps: What did you do to get u-boot working with the smc kernel?
<mps>
Glanzmann: copied t8103.dtsi and t8103-jxxx.dtsi to u-boot tree, rebuilt u-boot and created payload as usual
<Glanzmann>
I see, thanks.
<axboe>
quick test looks like ~160K ops/sec limit, ~6GB/sec reads
<axboe>
that's pretty low IOPS
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<mps>
though I added terminus fonts to u-boot, but this is irrelevant
<Glanzmann>
mps: I see. Font is fine for me.
<axboe>
~36M nop ops/sec through io_uring
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<j`ey>
axboe: what does that 36M compare to on another machine?
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<axboe>
my intel laptop does about 55M - but not necessarily an apples to apples since I haven't even checked the kernel config
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<j`ey>
not a bad figure to just start with at least
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<axboe>
not at all
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<j`ey>
is it multithreaded?
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<axboe>
can be, but this is just single thread
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<j`ey>
currently the m1s have a fixed frequency.. I think it's 2.X GHz, so that could improve already with a cpufreq driver
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