tree 032296314ad07c1732b0a02873604bbb99c5abee
parent dd1cd7080fd502441844ed375dffefff55352a98
author Sean Anderson <seanga2@gmail.com> 1600689099 -0400
committer Andes <uboot@andestech.com> 1601427292 +0800

riscv: Consolidate fences into AMOs for available_harts_lock

We can reduce the number of instructions needed to use available_harts_lock
by using the aq and rl suffixes for AMOs.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Rick Chen <rick@andestech.com>