HIP09 uses new address space to map SQ doorbell registers, the doorbell of
each QP is isolated based on the size of 64KB, which can improve the
performance in concurrency scenarios.

Link: https://lore.kernel.org/r/1614082833-23130-1-git-send-email-liweihang@huawei.comSigned-off-by: NLang Cheng <chenglang@huawei.com>
Signed-off-by: NWeihang Li <liweihang@huawei.com>
Signed-off-by: NJason Gunthorpe <jgg@nvidia.com>