shithub: riscv

ref: 8a4a2dea70aa77475a50968f4c5bd6cdab5d2fb1
dir: /sys/src/9/

arm64/
bcm/
bcm64/
boot/
cycv/
imx8/
ip/
kw/
mkfile
mt7688/
mtx/
omap/
pc/
pc64/
port/
ppc/
sgi/
teg2/
xen/
zynq/