Some systems, e.g., HiSilicon KunPeng920 and KunPeng930, have devices that
appear as PCI but are actually on the AMBA bus.  Some of these fake PCI
devices support a PASID-like feature and they do have a working PASID
capability even though they do not use the PCIe Transport Layer Protocol
and do not support TLP prefixes.

Add a pasid_no_tlp bit for this "PASID works without TLP prefixes" case and
update pci_enable_pasid() so it can enable PASID on these devices.

Set this bit for HiSilicon KunPeng920 and KunPeng930.

[bhelgaas: squashed, commit log]
Suggested-by: NBjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/1626144876-11352-2-git-send-email-zhangfei.gao@linaro.org
Link: https://lore.kernel.org/r/1626144876-11352-3-git-send-email-zhangfei.gao@linaro.orgSigned-off-by: NZhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: NJean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: NZhou Wang <wangzhou1@hisilicon.com>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>