The iommu->lock is used to protect the per-IOMMU pasid directory table
and pasid table. Move the spinlock acquisition/release into the helpers
to make the code self-contained.
Signed-off-by: NLu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: NKevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20220706025524.2904370-8-baolu.lu@linux.intel.comSigned-off-by: NJoerg Roedel <jroedel@suse.de>