@@ -2015,6 +2015,18 @@ static int arm_smmu_device_probe(struct platform_device *pdev)
}
smmu->dev = dev;
+ smmu->mc = memory_controller_get(dev, NULL);
+ if (IS_ERR(smmu->mc)) {
+ err = PTR_ERR(smmu->mc);
+
+ if (err != -ENODEV) {
+ dev_err(dev, "failed to get memory controller: %d\n", err);
+ return err;
+ }
+
+ smmu->mc = NULL;
+ }
+
if (dev->of_node)
err = arm_smmu_device_dt_probe(pdev, smmu);
else
@@ -17,6 +17,7 @@
#include <linux/io-64-nonatomic-hi-lo.h>
#include <linux/io-pgtable.h>
#include <linux/iommu.h>
+#include <linux/memory-controller.h>
#include <linux/mutex.h>
#include <linux/spinlock.h>
#include <linux/types.h>
@@ -224,6 +225,7 @@ enum arm_smmu_implementation {
struct arm_smmu_device {
struct device *dev;
+ struct memory_controller *mc;
void __iomem *base;
unsigned int numpage;