qcacmn: Support WLAN IPA WDI 3.0 SMMU

Support WLAN IPA WDI 3.0 with SMMU-S1 enabled. Key design
considerations are captured below.

- ring base addresses are passed as struct sg_table and IPA
driver will do the IOVA mapping to IPA domain.
- ring doorbell addresses are passed as physical address and
IPA driver will do the IOVA mapping to IPA domain.
- TX/RX buffers need to be mapped to IPA domain by WLAN driver
via ipa_wdi_create|release_smmu_mapping API.
- IPA doorbell addresses returned from ipa_wdi_conn_pipes are
DDR addresses and WLAN driver needs to do the IOVA mapping
to WLAN domain.

Change-Id: I2398df58c9a9d002af7035f239eda37a86f5d00f
CRs-Fixed: 2422155

dp/wifi3.0/dp_ipa.h

@@ -90,6 +90,9 @@ int dp_ipa_uc_detach(struct dp_soc *soc, struct dp_pdev *pdev);
 int dp_ipa_uc_attach(struct dp_soc *soc, struct dp_pdev *pdev);
 int dp_ipa_ring_resource_setup(struct dp_soc *soc,
 		struct dp_pdev *pdev);
+QDF_STATUS dp_ipa_handle_rx_buf_smmu_mapping(struct dp_soc *soc,
+					     qdf_nbuf_t nbuf,
+					     bool create);
 #else
 static inline int dp_ipa_uc_detach(struct dp_soc *soc, struct dp_pdev *pdev)
 {
@@ -106,5 +109,12 @@ static inline int dp_ipa_ring_resource_setup(struct dp_soc *soc,
 {
 	return 0;
 }
+
+static inline QDF_STATUS dp_ipa_handle_rx_buf_smmu_mapping(struct dp_soc *soc,
+							   qdf_nbuf_t nbuf,
+							   bool create)
+{
+	return QDF_STATUS_SUCCESS;
+}
 #endif
 #endif /* _DP_IPA_H_ */