shithub: riscv

ref: b3c1fa9ecfbaaacef40f6aa26199cdfd7f6cb9b1
dir: /sys/src/9/

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