crypto: qat - introduce chip info structure

Introduce the chip info structure which contains device specific
information. The initialization path has been split between common and
hardware specific in order to facilitate the introduction of the next
generation hardware.
Signed-off-by: Jack Xu <jack.xu@intel.com>
Co-developed-by: Wojciech Ziemba <wojciech.ziemba@intel.com>
Signed-off-by: Wojciech Ziemba <wojciech.ziemba@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/qat/qat_common/icp_qat_fw_loader_handle.h

@@ -22,13 +22,18 @@ struct icp_qat_fw_loader_hal_handle {
 	unsigned int max_ustore;
 };
 
+struct icp_qat_fw_loader_chip_info {
+	bool sram_visible;
+	bool fw_auth;
+};
+
 struct icp_qat_fw_loader_handle {
 	struct icp_qat_fw_loader_hal_handle *hal_handle;
+	struct icp_qat_fw_loader_chip_info *chip_info;
 	struct pci_dev *pci_dev;
 	void *obj_handle;
 	void *sobj_handle;
 	void *mobj_handle;
-	bool fw_auth;
 	void __iomem *hal_sram_addr_v;
 	void __iomem *hal_cap_g_ctl_csr_addr_v;
 	void __iomem *hal_cap_ae_xfer_csr_addr_v;

drivers/crypto/qat/qat_common/qat_hal.c

@@ -646,23 +646,41 @@ static int qat_hal_clear_gpr(struct icp_qat_fw_loader_handle *handle)
 	return 0;
 }
 
-int qat_hal_init(struct adf_accel_dev *accel_dev)
+static int qat_hal_chip_init(struct icp_qat_fw_loader_handle *handle,
+			     struct adf_accel_dev *accel_dev)
 {
-	unsigned char ae;
-	unsigned int max_en_ae_id = 0;
-	struct icp_qat_fw_loader_handle *handle;
 	struct adf_accel_pci *pci_info = &accel_dev->accel_pci_dev;
 	struct adf_hw_device_data *hw_data = accel_dev->hw_device;
 	struct adf_bar *misc_bar =
 			&pci_info->pci_bars[hw_data->get_misc_bar_id(hw_data)];
-	unsigned long ae_mask = hw_data->ae_mask;
-	unsigned int csr_val = 0;
+	unsigned int max_en_ae_id = 0;
 	struct adf_bar *sram_bar;
+	unsigned int csr_val = 0;
+	unsigned long ae_mask;
+	unsigned char ae = 0;
+	int ret = 0;
 
-	handle = kzalloc(sizeof(*handle), GFP_KERNEL);
-	if (!handle)
-		return -ENOMEM;
+	handle->pci_dev = pci_info->pci_dev;
+	switch (handle->pci_dev->device) {
+	case PCI_DEVICE_ID_INTEL_QAT_C62X:
+	case PCI_DEVICE_ID_INTEL_QAT_C3XXX:
+		handle->chip_info->sram_visible = false;
+		handle->chip_info->fw_auth = true;
+		break;
+	case PCI_DEVICE_ID_INTEL_QAT_DH895XCC:
+		handle->chip_info->sram_visible = true;
+		handle->chip_info->fw_auth = false;
+		break;
+	default:
+		ret = -EINVAL;
+		goto out_err;
+	}
 
+	if (handle->chip_info->sram_visible) {
+		sram_bar =
+			&pci_info->pci_bars[hw_data->get_sram_bar_id(hw_data)];
+		handle->hal_sram_addr_v = sram_bar->virt_addr;
+	}
 	handle->hal_cap_g_ctl_csr_addr_v =
 		(void __iomem *)((uintptr_t)misc_bar->virt_addr +
 				 ICP_QAT_CAP_OFFSET);
@@ -676,22 +694,14 @@ int qat_hal_init(struct adf_accel_dev *accel_dev)
 		(void __iomem *)((uintptr_t)handle->hal_cap_ae_xfer_csr_addr_v +
 				 LOCAL_TO_XFER_REG_OFFSET);
 	handle->pci_dev = pci_info->pci_dev;
-	if (handle->pci_dev->device == PCI_DEVICE_ID_INTEL_QAT_DH895XCC) {
-		sram_bar =
-			&pci_info->pci_bars[hw_data->get_sram_bar_id(hw_data)];
-		handle->hal_sram_addr_v = sram_bar->virt_addr;
-	}
-	handle->fw_auth = (handle->pci_dev->device ==
-			   PCI_DEVICE_ID_INTEL_QAT_DH895XCC) ? false : true;
-	handle->hal_handle = kzalloc(sizeof(*handle->hal_handle), GFP_KERNEL);
-	if (!handle->hal_handle)
-		goto out_hal_handle;
 	handle->hal_handle->revision_id = accel_dev->accel_pci_dev.revid;
 	handle->hal_handle->ae_mask = hw_data->ae_mask;
 	handle->hal_handle->slice_mask = hw_data->accel_mask;
 	/* create AE objects */
 	handle->hal_handle->upc_mask = 0x1ffff;
 	handle->hal_handle->max_ustore = 0x4000;
+
+	ae_mask = handle->hal_handle->ae_mask;
 	for_each_set_bit(ae, &ae_mask, ICP_QAT_UCLO_MAX_AE) {
 		handle->hal_handle->aes[ae].free_addr = 0;
 		handle->hal_handle->aes[ae].free_size =
@@ -703,37 +713,75 @@ int qat_hal_init(struct adf_accel_dev *accel_dev)
 		max_en_ae_id = ae;
 	}
 	handle->hal_handle->ae_max_num = max_en_ae_id + 1;
+
+	/* Set SIGNATURE_ENABLE[0] to 0x1 in order to enable ALU_OUT csr */
+	for_each_set_bit(ae, &ae_mask, handle->hal_handle->ae_max_num) {
+		csr_val = qat_hal_rd_ae_csr(handle, ae, SIGNATURE_ENABLE);
+		csr_val |= 0x1;
+		qat_hal_wr_ae_csr(handle, ae, SIGNATURE_ENABLE, csr_val);
+	}
+out_err:
+	return ret;
+}
+
+int qat_hal_init(struct adf_accel_dev *accel_dev)
+{
+	struct icp_qat_fw_loader_handle *handle;
+	int ret = 0;
+
+	handle = kzalloc(sizeof(*handle), GFP_KERNEL);
+	if (!handle)
+		return -ENOMEM;
+
+	handle->hal_handle = kzalloc(sizeof(*handle->hal_handle), GFP_KERNEL);
+	if (!handle->hal_handle) {
+		ret = -ENOMEM;
+		goto out_hal_handle;
+	}
+
+	handle->chip_info = kzalloc(sizeof(*handle->chip_info), GFP_KERNEL);
+	if (!handle->chip_info) {
+		ret = -ENOMEM;
+		goto out_chip_info;
+	}
+
+	ret = qat_hal_chip_init(handle, accel_dev);
+	if (ret) {
+		dev_err(&GET_DEV(accel_dev), "qat_hal_chip_init error\n");
+		goto out_err;
+	}
+
 	/* take all AEs out of reset */
-	if (qat_hal_clr_reset(handle)) {
+	ret = qat_hal_clr_reset(handle);
+	if (ret) {
 		dev_err(&GET_DEV(accel_dev), "qat_hal_clr_reset error\n");
 		goto out_err;
 	}
+
 	qat_hal_clear_xfer(handle);
-	if (!handle->fw_auth) {
-		if (qat_hal_clear_gpr(handle))
+	if (!handle->chip_info->fw_auth) {
+		ret = qat_hal_clear_gpr(handle);
+		if (ret)
 			goto out_err;
 	}
 
-	/* Set SIGNATURE_ENABLE[0] to 0x1 in order to enable ALU_OUT csr */
-	for_each_set_bit(ae, &ae_mask, handle->hal_handle->ae_max_num) {
-		csr_val = qat_hal_rd_ae_csr(handle, ae, SIGNATURE_ENABLE);
-		csr_val |= 0x1;
-		qat_hal_wr_ae_csr(handle, ae, SIGNATURE_ENABLE, csr_val);
-	}
 	accel_dev->fw_loader->fw_loader = handle;
 	return 0;
 
 out_err:
+	kfree(handle->chip_info);
+out_chip_info:
 	kfree(handle->hal_handle);
 out_hal_handle:
 	kfree(handle);
-	return -EFAULT;
+	return ret;
 }
 
 void qat_hal_deinit(struct icp_qat_fw_loader_handle *handle)
 {
 	if (!handle)
 		return;
+	kfree(handle->chip_info);
 	kfree(handle->hal_handle);
 	kfree(handle);
 }
@@ -746,7 +794,7 @@ int qat_hal_start(struct icp_qat_fw_loader_handle *handle)
 	u32 ae_ctr = 0;
 	int retry = 0;
 
-	if (handle->fw_auth) {
+	if (handle->chip_info->fw_auth) {
 		ae_ctr = hweight32(ae_mask);
 		SET_CAP_CSR(handle, FCU_CONTROL, FCU_CTRL_CMD_START);
 		do {
@@ -770,7 +818,7 @@ int qat_hal_start(struct icp_qat_fw_loader_handle *handle)
 void qat_hal_stop(struct icp_qat_fw_loader_handle *handle, unsigned char ae,
 		  unsigned int ctx_mask)
 {
-	if (!handle->fw_auth)
+	if (!handle->chip_info->fw_auth)
 		qat_hal_disable_ctx(handle, ae, ctx_mask);
 }
 

drivers/crypto/qat/qat_common/qat_uclo.c

@@ -1405,7 +1405,7 @@ int qat_uclo_wr_mimage(struct icp_qat_fw_loader_handle *handle,
 	struct icp_qat_fw_auth_desc *desc = NULL;
 	int status = 0;
 
-	if (handle->fw_auth) {
+	if (handle->chip_info->fw_auth) {
 		if (!qat_uclo_map_auth_fw(handle, addr_ptr, mem_size, &desc))
 			status = qat_uclo_auth_fw(handle, desc);
 		qat_uclo_ummap_auth_fw(handle, &desc);
@@ -1718,7 +1718,7 @@ int qat_uclo_map_obj(struct icp_qat_fw_loader_handle *handle,
 		obj_size = mem_size;
 	}
 
-	return (handle->fw_auth) ?
+	return (handle->chip_info->fw_auth) ?
 			qat_uclo_map_suof_obj(handle, obj_addr, obj_size) :
 			qat_uclo_map_uof_obj(handle, obj_addr, obj_size);
 }
@@ -1909,6 +1909,6 @@ static int qat_uclo_wr_uof_img(struct icp_qat_fw_loader_handle *handle)
 
 int qat_uclo_wr_all_uimage(struct icp_qat_fw_loader_handle *handle)
 {
-	return (handle->fw_auth) ? qat_uclo_wr_suof_img(handle) :
+	return (handle->chip_info->fw_auth) ? qat_uclo_wr_suof_img(handle) :
 				   qat_uclo_wr_uof_img(handle);
 }