iommu/amd: Re-define amd_iommu_domain_encode_pgtable as inline

Move the function to header file to allow inclusion in other files.
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Link: https://lore.kernel.org/r/20201215073705.123786-2-suravee.suthikulpanit@amd.comSigned-off-by: Joerg Roedel <jroedel@suse.de>

drivers/iommu/amd/amd_iommu.h

@@ -102,6 +102,19 @@ static inline void *iommu_phys_to_virt(unsigned long paddr)
 	return phys_to_virt(__sme_clr(paddr));
 }
 
+static inline
+void amd_iommu_domain_set_pt_root(struct protection_domain *domain, u64 root)
+{
+	atomic64_set(&domain->pt_root, root);
+}
+
+static inline
+void amd_iommu_domain_clr_pt_root(struct protection_domain *domain)
+{
+	amd_iommu_domain_set_pt_root(domain, 0);
+}
+
+
 extern bool translation_pre_enabled(struct amd_iommu *iommu);
 extern bool amd_iommu_is_attach_deferred(struct iommu_domain *domain,
 					 struct device *dev);

drivers/iommu/amd/iommu.c

@@ -160,16 +160,6 @@ static void amd_iommu_domain_get_pgtable(struct protection_domain *domain,
 	pgtable->mode = pt_root & 7; /* lowest 3 bits encode pgtable mode */
 }
 
-static void amd_iommu_domain_set_pt_root(struct protection_domain *domain, u64 root)
-{
-	atomic64_set(&domain->pt_root, root);
-}
-
-static void amd_iommu_domain_clr_pt_root(struct protection_domain *domain)
-{
-	amd_iommu_domain_set_pt_root(domain, 0);
-}
-
 static void amd_iommu_domain_set_pgtable(struct protection_domain *domain,
 					 u64 *root, int mode)
 {