iommu/vt-d: Move domain helper to header

Move domain helper to header to be used by SVA code. Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Link: https://lore.kernel.org/r/20200516062101.29541-2-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
mariux64 · May 18, 2020 · 3db9983 · 3db9983
1 parent 69cf449
commit 3db9983
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Showing 2 changed files with 6 additions and 6 deletions.
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
@@ -441,12 +441,6 @@ static void init_translation_status(struct intel_iommu *iommu)
 		iommu->flags |= VTD_FLAG_TRANS_PRE_ENABLED;
 }
 
-/* Convert generic 'struct iommu_domain to private struct dmar_domain */
-static struct dmar_domain *to_dmar_domain(struct iommu_domain *dom)
-{
-	return container_of(dom, struct dmar_domain, domain);
-}
-
 static int __init intel_iommu_setup(char *str)
 {
 	if (!str)

diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
@@ -595,6 +595,12 @@ static inline void __iommu_flush_cache(
 		clflush_cache_range(addr, size);
 }
 
+/* Convert generic struct iommu_domain to private struct dmar_domain */
+static inline struct dmar_domain *to_dmar_domain(struct iommu_domain *dom)
+{
+	return container_of(dom, struct dmar_domain, domain);
+}
+
 /*
  * 0: readable
  * 1: writable