# Copyright 2023-2024 Gentoo Authors # Distributed under the terms of the GNU General Public License v3 EAPI="8" ETYPE="sources" EXTRAVERSION="-cachyos-lts" # Not used in kernel-2, just due to most ebuilds have it K_USEPV="1" K_WANT_GENPATCHES="base extras experimental" K_GENPATCHES_VER="60" # make sure kernel-2 know right version without guess CKV="$(ver_cut 1-3)" inherit kernel-2 optfeature detect_version # disable all patch from kernel-2 UNIPATCH_LIST_DEFAULT="" DESCRIPTION="Linux SCHED-EXT + BORE + Cachy Sauce Kernel by CachyOS with other patches and improvements" HOMEPAGE="https://github.com/CachyOS/linux-cachyos" SRC_URI=" ${KERNEL_URI} ${GENPATCHES_URI} " LICENSE="GPL-3" KEYWORDS="amd64" IUSE=" experimental +bore-sched bore rt rt-bore eevdf sched-ext hardened +auto-cpu-optimization kcfi bcachefs llvm-lto-thin llvm-lto-full hz_ticks_100 hz_ticks_250 hz_ticks_300 hz_ticks_500 hz_ticks_600 hz_ticks_750 +hz_ticks_1000 +per-gov tickrate_perodic tickrate_idle +tickrate_full preempt_full preempt_voluntary preempt_server +hugepage_always hugepage_madvise +o3 os debug +bbr3 +hugepage_always hugepage_madvise mgeneric mgeneric_v1 mgeneric_v2 mgeneric_v3 mgeneric_v4 mnative_amd mnative_intel mk8 mk8sse3 mk10 mbarcelona mbobcat mjaguar mbulldozer mpiledriver msteamroller mexcavator mzen mzen2 mzen3 mzen4 mmpsc matom mcore2 mnehalem mwestmere msilvermont msandybridge mivybridge mhaswell mbroadwell mskylake mskylakex mcannonlake micelake mgoldmont mgoldmontplus mcascadelake mcooperlake mtigerlake msapphirerapids mrocketlake malderlake damon +lru_standard lru_stats +vma_standard vma_stats disable_debug " REQUIRED_USE=" ^^ ( bore-sched bore rt rt-bore eevdf sched-ext ) ?? ( llvm-lto-thin llvm-lto-full ) ^^ ( hz_ticks_100 hz_ticks_250 hz_ticks_300 hz_ticks_500 hz_ticks_600 hz_ticks_750 hz_ticks_1000 ) ^^ ( tickrate_perodic tickrate_idle tickrate_full ) rt? ( ^^ ( preempt_full preempt_voluntary preempt_server ) ) rt-bore? ( ^^ ( preempt_full preempt_voluntary preempt_server ) ) ?? ( o3 os ) ^^ ( hugepage_always hugepage_madvise ) ?? ( lru_standard lru_stats ) ?? ( vma_standard vma_stats ) sched-ext? ( !disable_debug ) ?? ( debug disable_debug ) ?? ( mnative_amd mnative_intel mk8 mk8sse3 mk10 mbarcelona mbobcat mjaguar mbulldozer mpiledriver msteamroller mexcavator mzen mzen2 mzen3 mzen4 mmpsc matom mcore2 mnehalem mwestmere msilvermont msandybridge mivybridge mhaswell mbroadwell mskylake mskylakex mcannonlake micelake mgoldmont mgoldmontplus mcascadelake mcooperlake mtigerlake msapphirerapids mrocketlake malderlake ) " _set_hztick_rate() { local _HZ_ticks=$1 if [[ $_HZ_ticks == 300 ]]; then scripts/config -e HZ_300 --set-val HZ 300 || die else scripts/config -d HZ_300 -e "HZ_${_HZ_ticks}" --set-val HZ "${_HZ_ticks}" || die fi } src_prepare() { files_dir="${FILESDIR}/${PV}" eapply "${files_dir}/all/0001-cachyos-base-all.patch" cp "${files_dir}/config-lts" .config || die if use bore-sched; then eapply "${files_dir}/sched/0001-bore-cachy.patch" fi if use bore; then eapply "${files_dir}/sched/0001-bore-cachy.patch" fi if use rt; then eapply "${files_dir}/misc/0001-rt.patch" fi if use rt-bore; then eapply "${files_dir}/misc/0001-rt.patch" eapply "${files_dir}/sched/0001-bore-cachy-rt.patch" fi if use sched-ext; then eapply "${files_dir}/sched/0001-sched-ext.patch" eapply "${files_dir}/sched/0001-bore-cachy-ext.patch" fi if use hardened; then eapply "${files_dir}/sched/0001-bore-cachy.patch" eapply "${files_dir}/misc/0001-hardened.patch" fi if use bcachefs; then eapply "${files_dir}/misc/0001-bcachefs.patch" fi if use bore || use hardened || use bore-sched; then scripts/config -e SCHED_BORE || die fi eapply_user if use auto-cpu-optimization; then sh "${files_dir}/auto-cpu-optimization.sh" || die fi # Remove CachyOS's localversion #find . -name "localversion*" -delete || die #scripts/config -u LOCALVERSION || die ### Selecting CachyOS config scripts/config -e CACHY || die ### Selecting the CPU scheduler if use bore; then scripts/config -e SCHED_BORE || die fi if use rt; then scripts/config -e PREEMPT_COUNT -e PREEMPTION -d PREEMPT_VOLUNTARY -d PREEMPT -d PREEMPT_NONE -e PREEMPT_RT -d PREEMPT_DYNAMIC -d PREEMPT_BUILD || die fi if use rt-bore; then scripts/config -e SCHED_BORE -e PREEMPT_COUNT -e PREEMPTION -d PREEMPT_VOLUNTARY -d PREEMPT -d PREEMPT_NONE -e PREEMPT_RT -d PREEMPT_DYNAMIC -d PREEMPT_BUILD || die fi if use sched-ext; then scripts/config -e SCHED_BORE -e SCHED_CLASS_EXT || die fi ### Enable KCFI if use kcfi; then scripts/config -e ARCH_SUPPORTS_CFI_CLANG -e CFI_CLANG || die fi ### Select LLVM level if use llvm-lto-thin; then scripts/config -e LTO -e LTO_CLANG -e ARCH_SUPPORTS_LTO_CLANG -e ARCH_SUPPORTS_LTO_CLANG_THIN -d LTO_NONE -e HAS_LTO_CLANG -d LTO_CLANG_FULL -e LTO_CLANG_THIN -e HAVE_GCC_PLUGINS || die elif use llvm-lto-full; then scripts/config -e LTO -e LTO_CLANG -e ARCH_SUPPORTS_LTO_CLANG -e ARCH_SUPPORTS_LTO_CLANG_THIN -d LTO_NONE -e HAS_LTO_CLANG -e LTO_CLANG_FULL -d LTO_CLANG_THIN -e HAVE_GCC_PLUGINS || die else scripts/config -e LTO_NONE || die fi ## LLVM patch if use kcfi || use llvm-lto-thin || use llvm-lto-full; then eapply "${files_dir}/misc/dkms-clang.patch" fi ### Select tick rate if use hz_ticks_100; then _set_hztick_rate 100 elif use hz_ticks_250; then _set_hztick_rate 250 elif use hz_ticks_300; then _set_hztick_rate 300 elif use hz_ticks_500; then _set_hztick_rate 500 elif use hz_ticks_600; then _set_hztick_rate 600 elif use hz_ticks_750; then _set_hztick_rate 750 elif use hz_ticks_1000; then _set_hztick_rate 1000 else die "Invalid HZ_TICKS use flag. Please select a valid option." fi ### Select LRU config if use lru_standard; then scripts/config -e LRU_GEN -e LRU_GEN_ENABLED -d LRU_GEN_STATS || die elif use lru_stats; then scripts/config -e LRU_GEN -e LRU_GEN_ENABLED -e LRU_GEN_STATS || die else scripts/config -d LRU_GEN || die fi ### Select VMA config if use vma_standard; then scripts/config -e PER_VMA_LOCK -d PER_VMA_LOCK_STATS || die elif use vma_stats; then scripts/config -e PER_VMA_LOCK -e PER_VMA_LOCK_STATS || die else scripts/config -d PER_VMA_LOCK || die fi ### Disable DEBUG if use disable_debug; then scripts/config -d DEBUG_INFO \ -d DEBUG_INFO_BTF \ -d DEBUG_INFO_DWARF4 \ -d DEBUG_INFO_DWARF5 \ -d PAHOLE_HAS_SPLIT_BTF \ -d DEBUG_INFO_BTF_MODULES \ -d SLUB_DEBUG \ -d PM_DEBUG \ -d PM_ADVANCED_DEBUG \ -d PM_SLEEP_DEBUG \ -d ACPI_DEBUG \ -d SCHED_DEBUG \ -d LATENCYTOP \ -d DEBUG_PREEMPT || die fi ### Select performance governor if use per-gov; then scripts/config -d CPU_FREQ_DEFAULT_GOV_SCHEDUTIL -e CPU_FREQ_DEFAULT_GOV_PERFORMANCE || die fi ### Select tick type if use tickrate_perodic; then scripts/config -d NO_HZ_IDLE -d NO_HZ_FULL -d NO_HZ -d NO_HZ_COMMON -e HZ_PERIODIC || die fi if use tickrate_idle; then scripts/config -d HZ_PERIODIC -d NO_HZ_FULL -e NO_HZ_IDLE -e NO_HZ -e NO_HZ_COMMON || die fi if use tickrate_full; then scripts/config -d HZ_PERIODIC -d NO_HZ_IDLE -d CONTEXT_TRACKING_FORCE -e NO_HZ_FULL_NODEF -e NO_HZ_FULL -e NO_HZ -e NO_HZ_COMMON -e CONTEXT_TRACKING || die fi ### Select preempt type if use preempt_full; then scripts/config -e PREEMPT_BUILD -d PREEMPT_NONE -d PREEMPT_VOLUNTARY -e PREEMPT -e PREEMPT_COUNT -e PREEMPTION -e PREEMPT_DYNAMIC || die fi if use preempt_voluntary; then scripts/config -e PREEMPT_BUILD -d PREEMPT_NONE -e PREEMPT_VOLUNTARY -d PREEMPT -e PREEMPT_COUNT -e PREEMPTION -d PREEMPT_DYNAMIC || die fi if use preempt_server; then scripts/config -e PREEMPT_NONE_BUILD -e PREEMPT_NONE -d PREEMPT_VOLUNTARY -d PREEMPT -d PREEMPTION -d PREEMPT_DYNAMIC || die fi ### Enable O3 if use o3; then scripts/config -d CC_OPTIMIZE_FOR_PERFORMANCE -e CC_OPTIMIZE_FOR_PERFORMANCE_O3 || die fi if use os; then scripts/config -d CC_OPTIMIZE_FOR_PERFORMANCE -e CONFIG_CC_OPTIMIZE_FOR_SIZE || die fi if use debug; then scripts/config -d CC_OPTIMIZE_FOR_PERFORMANCE \ -d CC_OPTIMIZE_FOR_PERFORMANCE_O3 \ -e CONFIG_CC_OPTIMIZE_FOR_SIZE \ -d SLUB_DEBUG \ -d PM_DEBUG \ -d PM_ADVANCED_DEBUG \ -d PM_SLEEP_DEBUG \ -d ACPI_DEBUG \ -d LATENCYTOP \ -d SCHED_DEBUG \ -d DEBUG_PREEMPT fi ### Enable BBR3 if use bbr3; then scripts/config -m TCP_CONG_CUBIC \ -d DEFAULT_CUBIC \ -e TCP_CONG_BBR \ -e DEFAULT_BBR \ --set-str DEFAULT_TCP_CONG bbr || die fi ### Select THP if use hugepage_always; then scripts/config -d TRANSPARENT_HUGEPAGE_MADVISE -e TRANSPARENT_HUGEPAGE_ALWAYS || die fi if use hugepage_madvise; then scripts/config -d TRANSPARENT_HUGEPAGE_ALWAYS -e TRANSPARENT_HUGEPAGE_MADVISE || die fi ### Enable DAMON if use damon; then scripts/config -e DAMON \ -e DAMON_VADDR \ -e DAMON_DBGFS \ -e DAMON_SYSFS \ -e DAMON_PADDR \ -e DAMON_RECLAIM \ -e DAMON_LRU_SORT || die fi ### Select CPU optimization march_list=(mgeneric mgeneric_v1 mgeneric_v2 mgeneric_v3 mgeneric_v4 mnative_amd mnative_intel mk8 mk8sse3 mk10 mbarcelona mbobcat mjaguar mbulldozer mpiledriver msteamroller mexcavator mzen mzen2 mzen3 mzen4 mmpsc matom mcore2 mnehalem mwestmere msilvermont msandybridge mivybridge mhaswell mbroadwell mskylake mskylakex mcannonlake micelake mgoldmont mgoldmontplus mcascadelake mcooperlake mtigerlake msapphirerapids mrocketlake malderlake) for MMARCH in "${march_list[@]}"; do if use "${MMARCH}"; then MARCH_TRIMMED=${MMARCH:1} MARCH=$(echo "$MARCH_TRIMMED" | tr '[:lower:]' '[:upper:]') if [ "$MARCH" != "GENERIC" ]; then if [[ "$MARCH" =~ GENERIC_V[1-4] ]]; then X86_64_LEVEL="${MARCH//GENERIC_V}" scripts/config --set-val X86_64_VERSION "${X86_64_LEVEL}" else scripts/config -k -d CONFIG_GENERIC_CPU scripts/config -k -e "CONFIG_M${MARCH}" fi fi break fi done ### Enable USER_NS_UNPRIVILEGED scripts/config -e USER_NS || die ### Change hostname scripts/config --set-str DEFAULT_HOSTNAME "gentoo" || die ### Set LOCALVERSION #scripts/config --set-str LOCALVERSION "${PV}" || die } pkg_postinst() { kernel-2_pkg_postinst optfeature "userspace KSM helper" sys-process/uksmd optfeature "auto nice daemon" app-admin/ananicy-cpp optfeature "NVIDIA opensource module" "x11-drivers/nvidia-drivers[kernel-open]" optfeature "NVIDIA module" x11-drivers/nvidia-drivers optfeature "ZFS support" sys-fs/zfs-kmod ewarn "Install sys-kernel/scx to Enable sched_ext schedulers" ewarn "You can find it in xarblu-overlay" ewarn "Then enable/start scx service." } pkg_postrm() { kernel-2_pkg_postrm } # 9de83922742a57a1c23c0e0533076a20e88999fd