Funtoo ARM64 CPU WIKI

https://www.funtoo.org/Funtoo_CPU_Database

Unfortunately This page has nil for Arm64 CPU's and documentation however THIS page below Will hopefully grow till added to above.

https://wiki.gentoo.org/wiki/Safe_CFLAGS#ARM still has older Settings , included for reference and or adding in.

RPI4/Rock64 Rock64pro and Pinebookpro laptop.

filename=/etc/portage/make.conf

COMMON_FLAGS="-O2 -pipe -march=armv8-a+crc+crypto -mcpu=cortex-a72.cortex-a53 ${GRAPHITE} ${CPU_FLAGS_ARM64}"

CPU_FLAGS_ARM64="edsp neon thumb vfp vfpv3 vfpv4 vfp-d32 crc32 v4 v5 v6 v7 v8 thumb2"

https://raw.githubusercontent.com/necrose99/arm64-portage/master/package.use/00cpu-flags (app-portage/cpuid2cpuflags output)

For Rpi4 soon Vulkan-vc? gpu for now Vc4 , Odroid-X4 ? Rock64/Pine64/Pinebook varriants also mali/bifrost panfrost kernel mode drivers , Panfrost being opensource. https://raw.githubusercontent.com/necrose99/arm64-portage/master/mesa template ...

Thunder X2 Server/Workstation

on Necrose99 (talk) 06:14, November 22, 2020 (UTC)Necrose99's shopping list https://www.asacomputers.com/Cavium-ThunderX-ARM.html No settings for this ATM... but i might have in a few weeks . 48 cores upto x2 up to 90 in some server chassis. Thunder x3 or successor is planed.

Ampere® Altra™ Server/Workstation

(offers up to 80 cores at up to 3.0 GHz speed with sustained turbo) https://www.anandtech.com/show/15733/ampere-emag-system-a-32core-arm64-workstation/7 No settings for this ATM...