iommu/vt-d: Drain PRQs when domain removed from RID

iommu/vt-d: Drain PRQs when domain removed from RID

As this iommu driver now supports page faults for requests without
PASID, page requests should be drained when a domain is removed from
the RID2PASID entry.

This results in the intel_iommu_drain_pasid_prq() call being moved to
intel_pasid_tear_down_entry(). This indicates that when a translation
is removed from any PASID entry and the PRI has been enabled on the
device, page requests are drained in the domain detachment path.

The intel_iommu_drain_pasid_prq() helper has been modified to support
sending device TLB invalidation requests for both PASID and non-PASID
cases.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Yi Liu <yi.l.liu@intel.com>
Link: https://lore.kernel.org/r/20241101045543.70086-1-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>