qcacld-3.0: Provide PLD APIs for SMMU operations

Proivde PLD wrapper APIs for getting SMMU mapping
context and mapping SMMU to a specific physical address.

Change-Id: I3feb61b26c839547e4d050f62963e64f5ca062a7
CRs-Fixed: 1057714

core/pld/inc/pld_common.h

@@ -394,5 +394,7 @@ int pld_athdiag_read(struct device *dev, uint32_t offset, uint32_t memtype,
 		     uint32_t datalen, uint8_t *output);
 int pld_athdiag_write(struct device *dev, uint32_t offset, uint32_t memtype,
 		      uint32_t datalen, uint8_t *input);
-
+void *pld_smmu_get_mapping(struct device *dev);
+int pld_smmu_map(struct device *dev, phys_addr_t paddr,
+		 uint32_t *iova_addr, size_t size);
 #endif

core/pld/src/pld_common.c

@@ -1490,3 +1490,62 @@ int pld_athdiag_write(struct device *dev, uint32_t offset,
 
 	return ret;
 }
+
+/**
+ * pld_smmu_get_mapping() - Get SMMU mapping context
+ * @dev: device
+ *
+ * Return: Pointer to the mapping context
+ */
+void *pld_smmu_get_mapping(struct device *dev)
+{
+	void *ptr = NULL;
+	enum pld_bus_type type = pld_get_bus_type(dev);
+
+	switch (type) {
+	case PLD_BUS_TYPE_SNOC:
+		ptr = pld_snoc_smmu_get_mapping(dev);
+		break;
+	case PLD_BUS_TYPE_PCIE:
+		pr_err("Not supported on type %d\n", type);
+		break;
+	default:
+		pr_err("Invalid device type %d\n", type);
+		break;
+	}
+
+	return ptr;
+}
+
+/**
+ * pld_smmu_map() - Map SMMU
+ * @dev: device
+ * @paddr: physical address that needs to map to
+ * @iova_addr: IOVA address
+ * @size: size to be mapped
+ *
+ * Return: 0 for success
+ *         Non zero failure code for errors
+ */
+int pld_smmu_map(struct device *dev, phys_addr_t paddr,
+		 uint32_t *iova_addr, size_t size)
+{
+	int ret = 0;
+	enum pld_bus_type type = pld_get_bus_type(dev);
+
+	switch (type) {
+	case PLD_BUS_TYPE_SNOC:
+		ret = pld_snoc_smmu_map(dev, paddr, iova_addr, size);
+		break;
+	case PLD_BUS_TYPE_PCIE:
+		pr_err("Not supported on type %d\n", type);
+		ret = -ENODEV;
+		break;
+	default:
+		pr_err("Invalid device type %d\n", type);
+		ret = -EINVAL;
+		break;
+	}
+
+	return ret;
+}

core/pld/src/pld_snoc.h

@@ -121,6 +121,15 @@ static inline int pld_snoc_athdiag_write(struct device *dev, uint32_t offset,
 {
 	return 0;
 }
+static inline void *pld_snoc_smmu_get_mapping(struct device *dev)
+{
+	return NULL;
+}
+static inline int pld_snoc_smmu_map(struct device *dev, phys_addr_t paddr,
+				    uint32_t *iova_addr, size_t size)
+{
+	return 0;
+}
 #else
 int pld_snoc_register_driver(void);
 void pld_snoc_unregister_driver(void);
@@ -155,5 +164,14 @@ static inline int pld_snoc_athdiag_write(struct device *dev, uint32_t offset,
 {
 	return icnss_athdiag_write(dev, offset, memtype, datalen, input);
 }
+static inline void *pld_snoc_smmu_get_mapping(struct device *dev)
+{
+	return icnss_smmu_get_mapping(dev);
+}
+static inline int pld_snoc_smmu_map(struct device *dev, phys_addr_t paddr,
+				    uint32_t *iova_addr, size_t size)
+{
+	return icnss_smmu_map(dev, paddr, iova_addr, size);
+}
 #endif
 #endif