Repository navigation
[FEATURE] support .xz compressed firmware #41
Description
Fedora 34 supports compressed firmware https://fedoraproject.org/wiki/Changes/CompressKernelFirmware. This is used for existing firmware released by Intel (atom and Skylake). This capability exists since 5.3, just before the SOF driver was upstream or usable.
Should the sof-bin installer optionally compress the .ri and .tplg files with the .xz format? We start having quite a few of them.
The default Kconfig for SOF development already support this capability.
Activity
perexg commentedon May 6, 2021
The alsa-sof-firmware package in Fedora does not use the sof-bin installer. I'll update the rpm spec file to compress the firmware files for 1.7 release.
marc-hb commentedon May 7, 2021
gitalready uses compression, so this would not make any significant git performance difference. As a sample datapoint I created two new, test git repo with the entire v1.7 release compressed withxzand not. The.git/size difference is less than 5%.The installer is now in
sof/installer/so any developer can use it, there's no installer code insof-binneeded any more at this moment. See #40. I use thesof/installer/to compile and deploy hundreds of times a day. "ktest-style" but much faster.You mean as an addition to #40 which is not reviewed yet? Seems doable, my only concern is that we already have symbolic links and https://fedoraproject.org/wiki/Changes/CompressKernelFirmware mentions more symlinks so I'm afraid about incompatibilities or that people might get lost.
marc-hb commentedon Oct 5, 2021
@perexg how did that go? As simple as running
xzon each.rifile, done?@plbossart I feel like this should be left to Linux distributions considering they own kernel configuration and considering the new sof-bin "installer" is now just a dumb recursive copy script that's not even required. Fedora does not seem to use it: #46 (comment)
plbossart commentedon Jan 18, 2022
will be left as an exercise for the distro package maintainer(s)