3 files changed, 6 insertions, 3 deletions
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c
index 1722bb161841..9e5da037d949 100644
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -31,6 +31,7 @@
 #include <linux/irqdomain.h>
 #include <linux/percpu.h>
 #include <linux/io-pgtable.h>
+#include <linux/cc_platform.h>
 #include <asm/irq_remapping.h>
 #include <asm/io_apic.h>
 #include <asm/apic.h>
@@ -2238,7 +2239,7 @@ static int amd_iommu_def_domain_type(struct device *dev)
 	 * active, because some of those devices (AMD GPUs) don't have the
 	 * encryption bit in their DMA-mask and require remapping.
 	 */
-	if (!mem_encrypt_active() && dev_data->iommu_v2)
+	if (!cc_platform_has(CC_ATTR_MEM_ENCRYPT) && dev_data->iommu_v2)
 		return IOMMU_DOMAIN_IDENTITY;
 
 	return 0;
diff --git a/drivers/iommu/amd/iommu_v2.c b/drivers/iommu/amd/iommu_v2.c
index a9e568276c99..13cbeb997cc1 100644
--- a/drivers/iommu/amd/iommu_v2.c
+++ b/drivers/iommu/amd/iommu_v2.c
@@ -17,6 +17,7 @@
 #include <linux/wait.h>
 #include <linux/pci.h>
 #include <linux/gfp.h>
+#include <linux/cc_platform.h>
 
 #include "amd_iommu.h"
 
@@ -742,7 +743,7 @@ int amd_iommu_init_device(struct pci_dev *pdev, int pasids)
 	 * When memory encryption is active the device is likely not in a
 	 * direct-mapped domain. Forbid using IOMMUv2 functionality for now.
 	 */
-	if (mem_encrypt_active())
+	if (cc_platform_has(CC_ATTR_MEM_ENCRYPT))
 		return -ENODEV;
 
 	if (!amd_iommu_v2_supported())
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 3303d707bab4..e80261d17a49 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -25,6 +25,7 @@
 #include <linux/property.h>
 #include <linux/fsl/mc.h>
 #include <linux/module.h>
+#include <linux/cc_platform.h>
 #include <trace/events/iommu.h>
 
 static struct kset *iommu_group_kset;
@@ -130,7 +131,7 @@ static int __init iommu_subsys_init(void)
 		else
 			iommu_set_default_translated(false);
 
-		if (iommu_default_passthrough() && mem_encrypt_active()) {
+		if (iommu_default_passthrough() && cc_platform_has(CC_ATTR_MEM_ENCRYPT)) {
 			pr_info("Memory encryption detected - Disabling default IOMMU Passthrough\n");
 			iommu_set_default_translated(false);
 		}