dgilmore changed the topic of #fedora-riscv to: Fedora on RISC-V https://fedoraproject.org/wiki/Architectures/RISC-V || Logs: https://libera.irclog.whitequark.org/fedora-riscv || Alt Arch discussions are welcome in #fedora-alt-arches
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<davidlt[m]> conchuod: how cpuinfo works on arm64? Does it show features per core or common only?
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<davidlt[m]> I just hope no apps are using cpuinfo for making decissions.
<davidlt[m]> Lost the kernel build this morning (ech..) stupid me. I rushed so much last night that forgot the filters for riscv64 modules.
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<conchuod> davidlt[m]: I don't know how it works on arm.
<conchuod> And yes, people do parse it.
<davidlt[m]> Yeah, but I recall from arm64 days that you should never trust cpuinfo.
<davidlt[m]> It's more for the users, but apps shouldn't parse it and make decisions from it.
<davidlt[m]> Pretty much over many years (if not decades) folks want to modify cpuinfo, which sometimes even shows a wrong info.
<davidlt[m]> Pretty much a lot (if not all) folks agree that cpuinfo is used in a wrong way a lot, and because of that no one wants to change it as they assume it's ABI.
<conchuod> I like Evan's patch, but it is too late.
<davidlt[m]> Yeah, some apps will break, but they should not have used cpuinfo in the 1st place.
<davidlt[m]> There should be a path torwards v1, v2, etc. like it happened with cgroups.
<davidlt[m]> Formats should never be permanently fixed.
<davidlt[m]> Just a personal opinion.
<conchuod> What else were they supposed to use?
<davidlt[m]> On ARM recommended things were hwcaps, there are some SDK APIs, etc.
<davidlt[m]> Don't recall the details.
<davidlt[m]> From x86 kernel docs, this line is interesting: In general, /proc/cpuinfo shows features which the kernel supports.
<davidlt[m]> And way too long articles explaining why feature might be missing in the list.
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