forked from Mirrors/opensbi
fccdf41d32
It's wrong to put the fence after setting the boot status flag because all relocation operations must be finished before setting the status flag. So, this fence must be put before the setting status flag, and there is no use in putting a fence between _start_warm and setting status flag. Also, nop can't delay other harts too much, so use div instead, just like Linux cpu_relax. Current opensbi force enables “M” Standard Extension, and mul instructions have been used in the fw_base.S. After the above two fixes, the boot hart index param of the fw_dynamic_info could be guaranteed properly for all platforms. Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Signed-off-by: Guo Ren <guoren@kernel.org> Reviewed-by: Anup Patel <anup@brainfault.org>