diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 3839010273130c4be13cfdfe7c0387470da7881d..e2b0b47f66b9c581f7022535a68c318120b6e7b5 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -10,6 +10,9 @@
 #include <linux/blk-mq.h>
 #include <linux/blk-mq-pci.h>
 #include <linux/blk-integrity.h>
+#ifdef CONFIG_LOONGARCH
+#include <linux/delay.h>
+#endif
 #include <linux/dmi.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
@@ -1079,6 +1082,11 @@ static irqreturn_t nvme_irq(int irq, void *data)
 	struct nvme_queue *nvmeq = data;
 	DEFINE_IO_COMP_BATCH(iob);
 
+#ifdef CONFIG_LOONGARCH
+	/* Ensure that the data is completely in place */
+	udelay(30);
+#endif
+
 	if (nvme_poll_cq(nvmeq, &iob)) {
 		if (!rq_list_empty(iob.req_list))
 			nvme_pci_complete_batch(&iob);
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index 5ebcb582cf0c7fa505cee520631c576eae3fde23..2a820ed04c1ef295caa94a1f24a61c0a2e4cb06d 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -3876,7 +3876,13 @@ static irqreturn_t megasas_isr_fusion(int irq, void *devp)
 		instance->instancet->clear_intr(instance);
 		return IRQ_HANDLED;
 	}
-
+#ifdef CONFIG_LOONGARCH
+	/*
+	 * There is no guarantee of sequence between DMA
+	 * and interrupts on the Loongson platform.
+	 */
+	udelay(30);
+#endif
 	return complete_cmd_fusion(instance, irq_context->MSIxIndex, irq_context)
 			? IRQ_HANDLED : IRQ_NONE;
 }