diff options
author | Alyssa Ross <hi@alyssa.is> | 2022-05-31 09:59:33 +0000 |
---|---|---|
committer | Alyssa Ross <hi@alyssa.is> | 2022-05-31 09:59:57 +0000 |
commit | 9ff36293d1e428cd7bf03e8d4b03611b6d361c28 (patch) | |
tree | 1ab51a42b868c55b83f6ccdb80371b9888739dd9 /lib/systems/architectures.nix | |
parent | 1c4fcd0d4b0541e674ee56ace1053e23e562cc80 (diff) | |
parent | ddc3c396a51918043bb0faa6f676abd9562be62c (diff) | |
download | nixpkgs-9ff36293d1e428cd7bf03e8d4b03611b6d361c28.tar nixpkgs-9ff36293d1e428cd7bf03e8d4b03611b6d361c28.tar.gz nixpkgs-9ff36293d1e428cd7bf03e8d4b03611b6d361c28.tar.bz2 nixpkgs-9ff36293d1e428cd7bf03e8d4b03611b6d361c28.tar.lz nixpkgs-9ff36293d1e428cd7bf03e8d4b03611b6d361c28.tar.xz nixpkgs-9ff36293d1e428cd7bf03e8d4b03611b6d361c28.tar.zst nixpkgs-9ff36293d1e428cd7bf03e8d4b03611b6d361c28.zip |
Last good Nixpkgs for Weston+nouveau? archive
I came this commit hash to terwiz[m] on IRC, who is trying to figure out what the last version of Spectrum that worked on their NUC with Nvidia graphics is.
Diffstat (limited to 'lib/systems/architectures.nix')
-rw-r--r-- | lib/systems/architectures.nix | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/lib/systems/architectures.nix b/lib/systems/architectures.nix new file mode 100644 index 00000000000..ddc320d24e0 --- /dev/null +++ b/lib/systems/architectures.nix @@ -0,0 +1,107 @@ +{ lib }: + +rec { + # gcc.arch to its features (as in /proc/cpuinfo) + features = { + default = [ ]; + # x86_64 Intel + westmere = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" ]; + sandybridge = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" ]; + ivybridge = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" ]; + haswell = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" "avx2" "fma" ]; + broadwell = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" "avx2" "fma" ]; + skylake = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" "avx2" "fma" ]; + skylake-avx512 = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" "avx2" "avx512" "fma" ]; + cannonlake = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" "avx2" "avx512" "fma" ]; + icelake-client = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" "avx2" "avx512" "fma" ]; + icelake-server = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" "avx2" "avx512" "fma" ]; + cascadelake = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" "avx2" "avx512" "fma" ]; + cooperlake = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" "avx2" "avx512" "fma" ]; + tigerlake = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" "avx2" "avx512" "fma" ]; + # x86_64 AMD + btver1 = [ "sse3" "ssse3" "sse4_1" "sse4_2" ]; + btver2 = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" ]; + bdver1 = [ "sse3" "ssse3" "sse4_1" "sse4_2" "sse4a" "aes" "avx" "fma" "fma4" ]; + bdver2 = [ "sse3" "ssse3" "sse4_1" "sse4_2" "sse4a" "aes" "avx" "fma" "fma4" ]; + bdver3 = [ "sse3" "ssse3" "sse4_1" "sse4_2" "sse4a" "aes" "avx" "fma" "fma4" ]; + bdver4 = [ "sse3" "ssse3" "sse4_1" "sse4_2" "sse4a" "aes" "avx" "avx2" "fma" "fma4" ]; + znver1 = [ "sse3" "ssse3" "sse4_1" "sse4_2" "sse4a" "aes" "avx" "avx2" "fma" ]; + znver2 = [ "sse3" "ssse3" "sse4_1" "sse4_2" "sse4a" "aes" "avx" "avx2" "fma" ]; + znver3 = [ "sse3" "ssse3" "sse4_1" "sse4_2" "sse4a" "aes" "avx" "avx2" "fma" ]; + # other + armv5te = [ ]; + armv6 = [ ]; + armv7-a = [ ]; + armv8-a = [ ]; + mips32 = [ ]; + loongson2f = [ ]; + }; + + # a superior CPU has all the features of an inferior and is able to build and test code for it + inferiors = { + # x86_64 Intel + default = [ ]; + westmere = [ ]; + sandybridge = [ "westmere" ] ++ inferiors.westmere; + ivybridge = [ "sandybridge" ] ++ inferiors.sandybridge; + haswell = [ "ivybridge" ] ++ inferiors.ivybridge; + broadwell = [ "haswell" ] ++ inferiors.haswell; + skylake = [ "broadwell" ] ++ inferiors.broadwell; + skylake-avx512 = [ "skylake" ] ++ inferiors.skylake; + + # x86_64 AMD + # TODO: fill this (need testing) + btver1 = [ ]; + btver2 = [ ]; + bdver1 = [ ]; + bdver2 = [ ]; + bdver3 = [ ]; + bdver4 = [ ]; + # Regarding `skylake` as inferior of `znver1`, there are reports of + # successful usage by Gentoo users and Phoronix benchmarking of different + # `-march` targets. + # + # The GCC documentation on extensions used and wikichip documentation + # regarding supperted extensions on znver1 and skylake was used to create + # this partial order. + # + # Note: + # + # - The succesors of `skylake` (`cannonlake`, `icelake`, etc) use `avx512` + # which no current AMD Zen michroarch support. + # - `znver1` uses `ABM`, `CLZERO`, `CX16`, `MWAITX`, and `SSE4A` which no + # current Intel microarch support. + # + # https://www.phoronix.com/scan.php?page=article&item=amd-znver3-gcc11&num=1 + # https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html + # https://en.wikichip.org/wiki/amd/microarchitectures/zen + # https://en.wikichip.org/wiki/intel/microarchitectures/skylake + znver1 = [ "skylake" ] ++ inferiors.skylake; + znver2 = [ "znver1" ] ++ inferiors.znver1; + znver3 = [ "znver2" ] ++ inferiors.znver2; + + # other + armv5te = [ ]; + armv6 = [ ]; + armv7-a = [ ]; + armv8-a = [ ]; + mips32 = [ ]; + loongson2f = [ ]; + }; + + predicates = let + featureSupport = feature: x: builtins.elem feature features.${x} or []; + in { + sse3Support = featureSupport "sse3"; + ssse3Support = featureSupport "ssse3"; + sse4_1Support = featureSupport "sse4_1"; + sse4_2Support = featureSupport "sse4_2"; + sse4_aSupport = featureSupport "sse4a"; + avxSupport = featureSupport "avx"; + avx2Support = featureSupport "avx2"; + avx512Support = featureSupport "avx512"; + aesSupport = featureSupport "aes"; + fmaSupport = featureSupport "fma"; + fma4Support = featureSupport "fma4"; + }; +} |