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Diffstat (limited to 'arch/x86/kernel/pci-swiotlb.c')
-rw-r--r--arch/x86/kernel/pci-swiotlb.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
index c2cfa5e7c152..814ab46a0dad 100644
--- a/arch/x86/kernel/pci-swiotlb.c
+++ b/arch/x86/kernel/pci-swiotlb.c
@@ -6,7 +6,7 @@
#include <linux/swiotlb.h>
#include <linux/memblock.h>
#include <linux/dma-direct.h>
-#include <linux/mem_encrypt.h>
+#include <linux/cc_platform.h>
#include <asm/iommu.h>
#include <asm/swiotlb.h>
@@ -45,11 +45,10 @@ int __init pci_swiotlb_detect_4gb(void)
swiotlb = 1;
/*
- * If SME is active then swiotlb will be set to 1 so that bounce
- * buffers are allocated and used for devices that do not support
- * the addressing range required for the encryption mask.
+ * Set swiotlb to 1 so that bounce buffers are allocated and used for
+ * devices that can't support DMA to encrypted memory.
*/
- if (sme_active())
+ if (cc_platform_has(CC_ATTR_HOST_MEM_ENCRYPT))
swiotlb = 1;
return swiotlb;