iommu/arm-smmu-v3: Realize sync_dirty_log iommu ops

virt inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I3ZUKK
CVE: NA

------------------------------

This realizes sync_dirty_log iommu ops based on sync_dirty_log
io-pgtable ops.
Co-developed-by: NKeqian Zhu <zhukeqian1@huawei.com>
Signed-off-by: NKunkun Jiang <jiangkunkun@huawei.com>
Reviewed-by: NKeqian Zhu <zhukeqian1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c

@@ -3154,6 +3154,35 @@ static int arm_smmu_switch_dirty_log(struct iommu_domain *domain, bool enable,
 	return 0;
 }
 
+static int arm_smmu_sync_dirty_log(struct iommu_domain *domain,
+				   unsigned long iova, size_t size,
+				   unsigned long *bitmap,
+				   unsigned long base_iova,
+				   unsigned long bitmap_pgshift)
+{
+	struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);
+	struct io_pgtable_ops *ops = smmu_domain->pgtbl_ops;
+	struct arm_smmu_device *smmu = smmu_domain->smmu;
+
+	if (!(smmu->features & ARM_SMMU_FEAT_HD))
+		return -ENODEV;
+	if (smmu_domain->stage != ARM_SMMU_DOMAIN_S1)
+		return -EINVAL;
+
+	if (!ops || !ops->sync_dirty_log) {
+		pr_err("io-pgtable don't realize sync dirty log\n");
+		return -ENODEV;
+	}
+
+	/*
+	 * Flush iotlb to ensure all inflight transactions are completed.
+	 * See doc IHI0070Da 3.13.4 "HTTU behavior summary".
+	 */
+	arm_smmu_flush_iotlb_all(domain);
+	return ops->sync_dirty_log(ops, iova, size, bitmap, base_iova,
+				   bitmap_pgshift);
+}
+
 static int arm_smmu_of_xlate(struct device *dev, struct of_phandle_args *args)
 {
 	return iommu_fwspec_add_ids(dev, args->args, 1);
@@ -3392,6 +3421,7 @@ static struct iommu_ops arm_smmu_ops = {
 	.domain_get_attr	= arm_smmu_domain_get_attr,
 	.domain_set_attr	= arm_smmu_domain_set_attr,
 	.switch_dirty_log	= arm_smmu_switch_dirty_log,
+	.sync_dirty_log		= arm_smmu_sync_dirty_log,
 	.of_xlate		= arm_smmu_of_xlate,
 	.get_resv_regions	= arm_smmu_get_resv_regions,
 	.put_resv_regions	= generic_iommu_put_resv_regions,