shithub: riscv

ref: e684b2a3fbd7d077ba4dabbd7fb4c7d1ff09c30c
dir: /sys/src/9/

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