qcacld-3.0: Add PLD APIs to get MSI information

These PLD APIs can be called to get PCIe MSI related information
from platform driver.

Change-Id: I2882f5c30d6f932c36af4503ac0bec9229ef35df
CRs-fixed: 1082183

core/pld/inc/pld_common.h

@@ -356,6 +356,12 @@ int pld_athdiag_write(struct device *dev, uint32_t offset, uint32_t memtype,
 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);
+int pld_get_user_msi_assignment(struct device *dev, char *user_name,
+				int *num_vectors, uint32_t *user_base_data,
+				uint32_t *base_vector);
+int pld_get_msi_irq(struct device *dev, unsigned int vector);
+void pld_get_msi_address(struct device *dev, uint32_t *msi_addr_low,
+			 uint32_t *msi_addr_high);
 unsigned int pld_socinfo_get_serial_number(struct device *dev);
 uint8_t *pld_common_get_wlan_mac_address(struct device *dev, uint32_t *num);
 int pld_is_qmi_disable(struct device *dev);

core/pld/src/pld_common.c

@@ -1501,6 +1501,107 @@ int pld_smmu_map(struct device *dev, phys_addr_t paddr,
 	return ret;
 }
 
+/**
+ * pld_get_user_msi_assignment() - Get MSI assignment information
+ * @dev: device structure
+ * @user_name: name of the user who requests the MSI assignment
+ * @num_vectors: number of the MSI vectors assigned for the user
+ * @user_base_data: MSI base data assigned for the user, this equals to
+ *                  endpoint base data from config space plus base vector
+ * @base_vector: base MSI vector (offset) number assigned for the user
+ *
+ * Return: 0 for success
+ *         Negative failure code for errors
+ */
+int pld_get_user_msi_assignment(struct device *dev, char *user_name,
+				int *num_vectors, uint32_t *user_base_data,
+				uint32_t *base_vector)
+{
+	int ret = 0;
+	enum pld_bus_type type = pld_get_bus_type(dev);
+
+	switch (type) {
+	case PLD_BUS_TYPE_PCIE:
+		ret = pld_pcie_get_user_msi_assignment(dev, user_name,
+						       num_vectors,
+						       user_base_data,
+						       base_vector);
+		break;
+	case PLD_BUS_TYPE_SNOC:
+	case PLD_BUS_TYPE_SDIO:
+	case PLD_BUS_TYPE_USB:
+		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;
+}
+
+/**
+ * pld_get_msi_irq() - Get MSI IRQ number used for request_irq()
+ * @dev: device structure
+ * @vector: MSI vector (offset) number
+ *
+ * Return: Positive IRQ number for success
+ *         Negative failure code for errors
+ */
+int pld_get_msi_irq(struct device *dev, unsigned int vector)
+{
+	int ret = 0;
+	enum pld_bus_type type = pld_get_bus_type(dev);
+
+	switch (type) {
+	case PLD_BUS_TYPE_PCIE:
+		ret = pld_pcie_get_msi_irq(dev, vector);
+		break;
+	case PLD_BUS_TYPE_SNOC:
+	case PLD_BUS_TYPE_SDIO:
+	case PLD_BUS_TYPE_USB:
+		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;
+}
+
+/**
+ * pld_get_msi_address() - Get the MSI address
+ * @dev: device structure
+ * @msi_addr_low: lower 32-bit of the address
+ * @msi_addr_high: higher 32-bit of the address
+ *
+ * Return: Void
+ */
+void pld_get_msi_address(struct device *dev, uint32_t *msi_addr_low,
+			 uint32_t *msi_addr_high)
+{
+	enum pld_bus_type type = pld_get_bus_type(dev);
+
+	switch (type) {
+	case PLD_BUS_TYPE_PCIE:
+		pld_pcie_get_msi_address(dev, msi_addr_low, msi_addr_high);
+		break;
+	case PLD_BUS_TYPE_SNOC:
+	case PLD_BUS_TYPE_SDIO:
+	case PLD_BUS_TYPE_USB:
+		pr_err("Not supported on type %d\n", type);
+		break;
+	default:
+		pr_err("Invalid device type %d\n", type);
+		break;
+	}
+}
+
 /**
  * pld_socinfo_get_serial_number() - Get SOC serial number
  * @dev: device

core/pld/src/pld_pcie.h

@@ -234,6 +234,24 @@ static inline uint8_t *pld_pcie_get_wlan_mac_address(struct device *dev,
 	*num = 0;
 	return NULL;
 }
+static inline int pld_pcie_get_user_msi_assignment(struct device *dev,
+						   char *user_name,
+						   int *num_vectors,
+						   uint32_t *user_base_data,
+						   uint32_t *base_vector)
+{
+	return 0;
+}
+static inline int pld_pcie_get_msi_irq(struct device *dev, unsigned int vector)
+{
+	return 0;
+}
+static inline void pld_pcie_get_msi_address(struct device *dev,
+					    uint32_t *msi_addr_low,
+					    uint32_t *msi_addr_high)
+{
+	return;
+}
 #else
 int pld_pcie_get_fw_files_for_target(struct pld_fw_files *pfw_files,
 				     u32 target_type, u32 target_version);
@@ -324,5 +342,24 @@ static inline uint8_t *pld_pcie_get_wlan_mac_address(struct device *dev,
 {
 	return cnss_common_get_wlan_mac_address(dev, num);
 }
+static inline int pld_pcie_get_user_msi_assignment(struct device *dev,
+						   char *user_name,
+						   int *num_vectors,
+						   uint32_t *user_base_data,
+						   uint32_t *base_vector)
+{
+	return cnss_get_user_msi_assignment(dev, user_name, num_vectors,
+					    user_base_data, base_vector);
+}
+static inline int pld_pcie_get_msi_irq(struct device *dev, unsigned int vector)
+{
+	return cnss_get_msi_irq(dev, vector);
+}
+static inline void pld_pcie_get_msi_address(struct device *dev,
+					    uint32_t *msi_addr_low,
+					    uint32_t *msi_addr_high)
+{
+	cnss_get_msi_address(dev, msi_addr_low, msi_addr_high);
+}
 #endif
 #endif