| 3 Jul 2023 |
 raitobezarius | This was mentioned above | 09:33:30 |
| raitobezarius | I'm not sure it's a good idea to buy this right right now | 09:33:43 |
| 4 Jul 2023 |
 Alex | In reply to @alex:tunstall.xyz
Has anyone worked out how to get the VF2 to run at 1.5GHz?
I'm using a kernel with the AXP15060 enabled and all the patches for PMIC and CPU freq applied, but the system still runs at 1GHz (the boot clock rate).
[nixos@nixos:/etc/nixos/nixos-vf2]$ sudo cat /sys/devices/system/cpu/cpufreq/policy0/cpuinfo_{cur,max}_freq
1000000
1500000
[nixos@nixos:/etc/nixos/nixos-vf2]$ sudo cat /sys/devices/system/cpu/cpufreq/policy0/scaling_{driver,governor,cur_freq}
cpufreq-dt
performance
1500000
I've asked upstream because I couldn't work out what's wrong, inexperienced as I am at kernel hacking.
https://github.com/starfive-tech/VisionFive2/issues/55 | 08:02:34 |
 emilytrau | Any ideas on how to get an LLVM crossLibcStdenv with C++ support? SerenityOS needs it to bootstrap libc but I can't see a straightforward way to enable it like with GCC (https://github.com/NixOS/nixpkgs/pull/186484/files#diff-ab5748dc9567516fefba8344056b51ec1866adeace380f46e58a7af3d619ea22R15251) | 11:01:08 |
 fgaz | 
Download 2023-07-04-145913_786x410_scrot.png | 13:00:00 |
| fgaz | \o/ | 13:00:07 |
| Alex | In reply to @fgaz:matrix.org
sent an image. Is that the devel branch kernel?
The CPU frequency shown is the max frequency, but is that also what you get for /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_cur_freq?
Asking because I don't want to spend 10+ hours building the devel branch kernel (+ time needed to get it to build and work properly). | 15:24:53 |
| raitobezarius | you can also just cross compile :p | 15:26:09 |
| Alex | In reply to @raitobezarius:matrix.org
you can also just cross compile :p I'm not entirely sure how I'd then hook that into nixos-rebuild.
nix copy to the VF2 and then hardcode the store path (or a symlink to it) in place of the native kernel in the system config?
| 15:29:04 |
| raitobezarius | you want to mix native and cross compiled derivations? | 15:29:41 |
| raitobezarius | I'd cross compile an entire NixOS system, boot it, then pick up the rest with native derivation or just keep up with cross compiled stuff | 15:29:58 |
| Alex | I already have a running native system, so I'd rather stick to native. | 15:30:53 |
| raitobezarius | I see | 15:34:33 |
| Alex | That's how I know how long it takes to build the Linux kernel in the first place. 🙃
(I could probably disable a lot of unused modules to reduce the build times, but is it worth it?) | 15:39:16 |
| fgaz | In reply to @alex:tunstall.xyz
Is that the devel branch kernel?
The CPU frequency shown is the max frequency, but is that also what you get for /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_cur_freq?
Asking because I don't want to spend 10+ hours building the devel branch kernel (+ time needed to get it to build and work properly). It's this one (the board is a star64, not a vf2) https://github.com/Fishwaldo/Star64_linux/commit/765947eacb2408a3a232cbe8093bf28a991f3c35
Yes I get 1.5GHz | 15:58:44 |
