373 lines
9.3 KiB
Nix
373 lines
9.3 KiB
Nix
{
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cachyConfig,
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fetchFromGitHub,
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fetchurl,
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lib,
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stdenv,
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kernel,
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ogKernelConfigfile,
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commonMakeFlags,
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}:
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let
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inherit (cachyConfig.versions.linux) version;
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majorMinor = lib.versions.majorMinor version;
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patches-src = fetchFromGitHub {
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owner = "CachyOS";
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repo = "kernel-patches";
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inherit (cachyConfig.versions.patches) rev hash;
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};
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config-src = fetchFromGitHub {
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owner = "CachyOS";
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repo = "linux-cachyos";
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inherit (cachyConfig.versions.config) rev hash;
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};
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src =
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if cachyConfig.taste == "linux-cachyos-rc" then
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fetchurl {
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url = "https://git.kernel.org/torvalds/t/linux-${version}.tar.gz";
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inherit (cachyConfig.versions.linux) hash;
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}
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else
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fetchurl {
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url = "mirror://kernel/linux/kernel/v${lib.versions.major version}.x/linux-${
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if version == "${majorMinor}.0" then majorMinor else version
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}.tar.xz";
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inherit (cachyConfig.versions.linux) hash;
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};
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schedPatches =
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if cachyConfig.cpuSched == "eevdf" then
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[ ]
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else if cachyConfig.cpuSched == "hardened" then
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[ ] # BORE disabled in CachyOS/linux-cachyos/commit/4ffae8ab9947f35495dfa7b62b7a22f023488dfb
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else if (cachyConfig.cpuSched == "cachyos" || cachyConfig.cpuSched == "sched-ext") then
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lib.optionals (lib.strings.versionOlder majorMinor "6.12") [
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"${patches-src}/${majorMinor}/sched/0001-sched-ext.patch"
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]
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++ lib.optionals (cachyConfig.cpuSched == "cachyos" && version != "6.17-rc1") [
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"${patches-src}/${majorMinor}/sched/0001-bore-cachy.patch"
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]
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else
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throw "Unsupported cachyos _cpu_sched=${toString cachyConfig.cpuSched}";
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patches = [
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"${patches-src}/${majorMinor}/all/0001-cachyos-base-all.patch"
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]
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++ schedPatches
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++ lib.optional (
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cachyConfig.cpuSched == "hardened"
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) "${patches-src}/${majorMinor}/misc/0001-hardened.patch";
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# There are some configurations set by the PKGBUILD
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pkgbuildConfig =
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with cachyConfig;
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basicCachyConfig
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++ mArchConfig
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++ cpuSchedConfig
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++ [
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# _nr_cpus, defaults to empty, which later set this
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"--set-val NR_CPUS 320"
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# _per_gov, defaults to empty [but PERSONAL CHANGE to "y"]
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"-d CPU_FREQ_DEFAULT_GOV_SCHEDUTIL"
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"-e CPU_FREQ_DEFAULT_GOV_PERFORMANCE"
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# _tcp_bbr3, defaults to "y"
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"-m TCP_CONG_CUBIC"
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"-d DEFAULT_CUBIC"
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"-e TCP_CONG_BBR"
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"-e DEFAULT_BBR"
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"--set-str DEFAULT_TCP_CONG bbr"
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"-m NET_SCH_FQ_CODEL"
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"-e NET_SCH_FQ"
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"-d DEFAULT_FQ_CODEL"
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"-e DEFAULT_FQ"
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"--set-str DEFAULT_NET_SCH fq"
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# Nixpkgs don't support this
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"-d CONFIG_SECURITY_TOMOYO"
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]
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++ ltoConfig
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++ ticksHzConfig
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++ tickRateConfig
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++ preemptConfig
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++ [
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# _cc_harder, defaults to "y"
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"-d CC_OPTIMIZE_FOR_PERFORMANCE"
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"-e CC_OPTIMIZE_FOR_PERFORMANCE_O3"
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# _lru_config, defaults to "standard"
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"-e LRU_GEN"
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"-e LRU_GEN_ENABLED"
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"-d LRU_GEN_STATS"
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# _vma_config, defaults to "standard"
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"-e PER_VMA_LOCK"
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"-d PER_VMA_LOCK_STATS"
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]
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++ hugePagesConfig
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++ damonConfig
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++ ntSyncConfig
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++ hdrConfig
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++ disableDebug
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++ pageSizeConfig;
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# _cachy_config, defaults to "y"
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basicCachyConfig = lib.optional cachyConfig.basicCachy "-e CACHY";
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# _processor_opt config, defaults to ""
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mArchConfig =
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if cachyConfig.mArch == null then
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[ ]
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else if cachyConfig.mArch == "NATIVE" then
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[
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"-d GENERIC_CPU"
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"-d MZEN4"
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"-e X86_NATIVE_CPU"
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]
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else if cachyConfig.mArch == "ZEN4" then
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[
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"-d GENERIC_CPU"
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"-e MZEN4"
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"-d X86_NATIVE_CPU"
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]
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else if builtins.match "GENERIC_V[1-4]" cachyConfig.mArch != null then
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let
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v = lib.strings.removePrefix "GENERIC_V" cachyConfig.mArch;
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in
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[
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"-e GENERIC_CPU"
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"-d MZEN4"
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"-d X86_NATIVE_CPU"
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"--set-val X86_64_VERSION ${v}"
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]
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else
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throw "Unsuppoted cachyos mArch";
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# _cpusched, defaults to "cachyos"
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cpuSchedConfig =
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if cachyConfig.cpuSched == "eevdf" then
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[ ]
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else if cachyConfig.cpuSched == "hardened" then
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[ "-e SCHED_BORE" ]
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else if cachyConfig.cpuSched == "sched-ext" then
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[ "-e SCHED_CLASS_EXT" ]
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else if cachyConfig.cpuSched == "cachyos" then
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[
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"-e SCHED_BORE"
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"-e SCHED_CLASS_EXT"
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]
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else
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throw "Unsupported cachyos scheduler";
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# _HZ_ticks, defaults to "500"
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ticksHzConfig =
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if cachyConfig.ticksHz == 300 then
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[
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"-e HZ_300"
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"--set-val HZ 300"
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]
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else
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[
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"-d HZ_300"
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"--set-val HZ ${toString cachyConfig.ticksHz}"
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"-e HZ_${toString cachyConfig.ticksHz}"
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];
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# _use_llvm_lto, defaults to "none"
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ltoConfig =
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if cachyConfig.useLTO == "thin" then
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[
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"-e LTO"
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"-e LTO_CLANG"
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"-e ARCH_SUPPORTS_LTO_CLANG"
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"-e ARCH_SUPPORTS_LTO_CLANG_THIN"
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"-d LTO_NONE"
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"-e HAS_LTO_CLANG"
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"-d LTO_CLANG_FULL"
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"-e LTO_CLANG_THIN"
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"-e HAVE_GCC_PLUGINS"
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]
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else if cachyConfig.useLTO == "full" then
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[
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"-e LTO"
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"-e LTO_CLANG"
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"-e ARCH_SUPPORTS_LTO_CLANG"
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"-e ARCH_SUPPORTS_LTO_CLANG_THIN"
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"-d LTO_NONE"
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"-e HAS_LTO_CLANG"
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"-e LTO_CLANG_FULL"
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"-d LTO_CLANG_THIN"
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"-e HAVE_GCC_PLUGINS"
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]
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else if cachyConfig.useLTO == "none" then
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[ ]
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else
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throw "Unsupported cachyos _use_llvm_lto";
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# _tickrate defaults to "full"
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tickRateConfig =
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if cachyConfig.tickRate == "idle" then
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[
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"-d HZ_PERIODIC"
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"-d NO_HZ_FULL"
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"-e NO_HZ_IDLE"
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"-e NO_HZ"
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"-e NO_HZ_COMMON"
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]
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else if cachyConfig.tickRate == "full" then
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[
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"-d HZ_PERIODIC"
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"-d NO_HZ_IDLE"
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"-d CONTEXT_TRACKING_FORCE"
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"-e NO_HZ_FULL_NODEF"
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"-e NO_HZ_FULL"
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"-e NO_HZ"
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"-e NO_HZ_COMMON"
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"-e CONTEXT_TRACKING"
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]
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else
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throw "Unsupported cachyos _tickrate";
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# _preempt, defaults to "full"
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preemptConfig =
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if cachyConfig.preempt == "full" then
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[
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"-e PREEMPT_BUILD"
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"-d PREEMPT_NONE"
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"-d PREEMPT_VOLUNTARY"
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"-e PREEMPT"
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"-e PREEMPT_COUNT"
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"-e PREEMPTION"
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"-e PREEMPT_DYNAMIC"
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]
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else if cachyConfig.preempt == "server" then
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[
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"-e PREEMPT_NONE_BUILD"
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"-e PREEMPT_NONE"
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"-d PREEMPT_VOLUNTARY"
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"-d PREEMPT"
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"-d PREEMPTION"
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"-d PREEMPT_DYNAMIC"
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]
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else
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throw "Unsupported cachyos _preempt";
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# _hugepage, defaults to "always"
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hugePagesConfig =
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if cachyConfig.hugePages == "always" then
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[
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"-d TRANSPARENT_HUGEPAGE_MADVISE"
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"-e TRANSPARENT_HUGEPAGE_ALWAYS"
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]
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else if cachyConfig.hugePages == "madvise" then
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[
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"-d TRANSPARENT_HUGEPAGE_ALWAYS"
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"-e TRANSPARENT_HUGEPAGE_MADVISE"
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]
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else
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throw "Unsupported cachyos _hugepage";
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pageSizeConfig =
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if cachyConfig.pageSize == "16k" then
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[
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"-d CONFIG_ARM64_4K_PAGES"
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"-e CONFIG_ARM64_16K_PAGES"
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]
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else if cachyConfig.pageSize == "4k" then
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[ ]
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else
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throw "Unsupported cachyos _hugepage";
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# _damon, defaults to empty
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damonConfig = lib.optionals cachyConfig.withDAMON [
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"-e DAMON"
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"-e DAMON_VADDR"
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"-e DAMON_DBGFS"
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"-e DAMON_SYSFS"
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"-e DAMON_PADDR"
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"-e DAMON_RECLAIM"
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"-e DAMON_LRU_SORT"
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];
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# _ntsync, defaults to empty
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ntSyncConfig = lib.optionals cachyConfig.withNTSync [ "-m NTSYNC" ];
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# custom made
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hdrConfig = lib.optionals cachyConfig.withHDR [ "-e AMD_PRIVATE_COLOR" ];
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# https://github.com/CachyOS/linux-cachyos/issues/187
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disableDebug =
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lib.optionals
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(
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cachyConfig.withoutDebug && cachyConfig.cpuSched != "sched-ext" && cachyConfig.cpuSched != "cachyos"
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)
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[
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"-d DEBUG_INFO"
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"-d DEBUG_INFO_BTF"
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"-d DEBUG_INFO_DWARF4"
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"-d DEBUG_INFO_DWARF5"
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"-d PAHOLE_HAS_SPLIT_BTF"
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"-d DEBUG_INFO_BTF_MODULES"
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"-d SLUB_DEBUG"
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"-d PM_DEBUG"
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"-d PM_ADVANCED_DEBUG"
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"-d PM_SLEEP_DEBUG"
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"-d ACPI_DEBUG"
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"-d SCHED_DEBUG"
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"-d LATENCYTOP"
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"-d DEBUG_PREEMPT"
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];
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in
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stdenv.mkDerivation (finalAttrs: {
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inherit src patches;
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name = "linux-cachyos-config";
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nativeBuildInputs = kernel.nativeBuildInputs ++ kernel.buildInputs;
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makeFlags = commonMakeFlags;
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postPhase = ''
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${finalAttrs.passthru.extraVerPatch}
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'';
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buildPhase = ''
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runHook preBuild
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echo ${cachyConfig.taste}
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cp "${config-src}/${cachyConfig.taste}/config" ".config"
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make $makeFlags olddefconfig
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patchShebangs scripts/config
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scripts/config ${lib.concatStringsSep " " pkgbuildConfig}
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make $makeFlags olddefconfig
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runHook postBuild
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'';
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installPhase = ''
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runHook preInstall
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cp .config $out
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runHook postInstall
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'';
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meta = ogKernelConfigfile.meta // {
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# at the time of this writing, they don't have config files for aarch64
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platforms = [
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"x86_64-linux"
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"aarch64-linux"
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];
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};
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passthru = {
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inherit cachyConfig commonMakeFlags stdenv;
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kernelPatches = patches;
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extraVerPatch = ''
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sed -Ei"" 's/EXTRAVERSION = ?(.*)$/EXTRAVERSION = \1${cachyConfig.versions.suffix}/g' Makefile
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'';
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};
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})
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