iommu/amd: Set AMD iommu callbacks for amba bus
AMD Uart DMA belongs to ACPI HID type device, and its driver
is basing on AMBA Bus, need also IOMMU support.
This patch is just to set the AMD iommu callbacks for amba bus.
Signed-off-by: Wan Zongshun <Vincent.Wan@amd.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 713e7ea..c430c10 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -20,6 +20,7 @@
#include <linux/ratelimit.h>
#include <linux/pci.h>
#include <linux/acpi.h>
+#include <linux/amba/bus.h>
#include <linux/pci-ats.h>
#include <linux/bitmap.h>
#include <linux/slab.h>
@@ -2969,7 +2970,17 @@
int __init amd_iommu_init_api(void)
{
- return bus_set_iommu(&pci_bus_type, &amd_iommu_ops);
+ int err = 0;
+
+ err = bus_set_iommu(&pci_bus_type, &amd_iommu_ops);
+ if (err)
+ return err;
+#ifdef CONFIG_ARM_AMBA
+ err = bus_set_iommu(&amba_bustype, &amd_iommu_ops);
+ if (err)
+ return err;
+#endif
+ return 0;
}
int __init amd_iommu_init_dma_ops(void)