diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c
index 97c44c431ada9bcd737a8784461c63e725c3a515..f358ced827f2b5f3a21b95634e6e2ebc0f04d62b 100644
--- a/drivers/mailbox/pcc.c
+++ b/drivers/mailbox/pcc.c
@@ -67,11 +67,13 @@ static struct mbox_chan *pcc_mbox_channels;
 /**
  * struct pcc_chan_info - PCC channel specific information
  *
+ * @chan: PCC channel information with Shared Memory Region info
  * @db_vaddr: cached virtual address for doorbell register
  * @db_ack_vaddr: cached virtual address for doorbell ack register
  * @db_irq: doorbell interrupt
  */
 struct pcc_chan_info {
+	struct pcc_mbox_chan chan;
 	void __iomem *db_vaddr;
 	void __iomem *db_ack_vaddr;
 	int db_irq;
@@ -470,6 +472,27 @@ static void pcc_parse_subspace_db_reg(struct pcc_chan_info *pchan,
 						  db_reg->bit_width / 8);
 }
 
+/**
+ * pcc_parse_subspace_shmem - Parse the PCC Shared Memory Region information
+ *
+ * @pchan: Pointer to the PCC channel info structure.
+ * @pcct_entry: Pointer to the ACPI subtable header.
+ *
+ */
+static void pcc_parse_subspace_shmem(struct pcc_chan_info *pchan,
+				     struct acpi_subtable_header *pcct_entry)
+{
+	struct acpi_pcct_subspace *pcct_ss;
+
+	pcct_ss = (struct acpi_pcct_subspace *)pcct_entry;
+
+	pchan->chan.shmem_base_addr = pcct_ss->base_address;
+	pchan->chan.shmem_size = pcct_ss->length;
+	pchan->chan.latency = pcct_ss->latency;
+	pchan->chan.max_access_rate = pcct_ss->max_access_rate;
+	pchan->chan.min_turnaround_time = pcct_ss->min_turnaround_time;
+}
+
 /**
  * acpi_pcc_probe - Parse the ACPI tree for the PCCT.
  *
@@ -537,6 +560,8 @@ static int __init acpi_pcc_probe(void)
 		struct pcc_chan_info *pchan = chan_info + i;
 		pcc_mbox_channels[i].con_priv = pcct_entry;
 
+		pchan->chan.mchan = &pcc_mbox_channels[i];
+
 		if (pcc_mbox_ctrl.txdone_irq) {
 			rc = pcc_parse_subspace_irq(pchan, pcct_entry);
 			if (rc < 0)
@@ -544,6 +569,8 @@ static int __init acpi_pcc_probe(void)
 		}
 		pcc_parse_subspace_db_reg(pchan, pcct_entry);
 
+		pcc_parse_subspace_shmem(pchan, pcct_entry);
+
 		pcct_entry = (struct acpi_subtable_header *)
 			((unsigned long) pcct_entry + pcct_entry->length);
 	}
diff --git a/include/acpi/pcc.h b/include/acpi/pcc.h
index 4dec4ed138cd7fdc8a7f5fb74a55b6c708e29528..5e510a6b80521cae80c80f5c80124d845c5a685d 100644
--- a/include/acpi/pcc.h
+++ b/include/acpi/pcc.h
@@ -9,6 +9,15 @@
 #include <linux/mailbox_controller.h>
 #include <linux/mailbox_client.h>
 
+struct pcc_mbox_chan {
+	struct mbox_chan *mchan;
+	u64 shmem_base_addr;
+	u64 shmem_size;
+	u32 latency;
+	u32 max_access_rate;
+	u16 min_turnaround_time;
+};
+
 #define MAX_PCC_SUBSPACES	256
 #ifdef CONFIG_PCC
 extern struct mbox_chan *pcc_mbox_request_channel(struct mbox_client *cl,