shithub: riscv

ref: cd752a39f8b0b36378800740c0e5915beabfb56d
dir: /sys/src/9/

bcm/
boot/
ip/
kw/
mkfile
mtx/
omap/
pc/
pc64/
port/
ppc/
sgi/
teg2/
xen/
zynq/