static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { struct adf_accel_dev *accel_dev; struct adf_accel_pci *accel_pci_dev; struct adf_hw_device_data *hw_data; char name[ADF_DEVICE_NAME_LENGTH]; unsigned int i, bar_nr; int ret; switch (ent->device) { case ADF_DH895XCC_PCI_DEVICE_ID: break; default: dev_err(&pdev->dev, "Invalid device 0x%x.\n", ent->device); return -ENODEV; } if (num_possible_nodes() > 1 && dev_to_node(&pdev->dev) < 0) { /* If the accelerator is connected to a node with no memory * there is no point in using the accelerator since the remote * memory transaction will be very slow. */ dev_err(&pdev->dev, "Invalid NUMA configuration.\n"); return -EINVAL; } accel_dev = kzalloc_node(sizeof(*accel_dev), GFP_KERNEL, dev_to_node(&pdev->dev)); if (!accel_dev) return -ENOMEM; INIT_LIST_HEAD(&accel_dev->crypto_list); /* Add accel device to accel table. * This should be called before adf_cleanup_accel is called */ if (adf_devmgr_add_dev(accel_dev)) { dev_err(&pdev->dev, "Failed to add new accelerator device.\n"); kfree(accel_dev); return -EFAULT; } accel_dev->owner = THIS_MODULE; /* Allocate and configure device configuration structure */ hw_data = kzalloc_node(sizeof(*hw_data), GFP_KERNEL, dev_to_node(&pdev->dev)); if (!hw_data) { ret = -ENOMEM; goto out_err; } accel_dev->hw_device = hw_data; switch (ent->device) { case ADF_DH895XCC_PCI_DEVICE_ID: adf_init_hw_data_dh895xcc(accel_dev->hw_device); break; default: return -ENODEV; } accel_pci_dev = &accel_dev->accel_pci_dev; pci_read_config_byte(pdev, PCI_REVISION_ID, &accel_pci_dev->revid); pci_read_config_dword(pdev, ADF_DH895XCC_FUSECTL_OFFSET, &hw_data->fuses); /* Get Accelerators and Accelerators Engines masks */ hw_data->accel_mask = hw_data->get_accel_mask(hw_data->fuses); hw_data->ae_mask = hw_data->get_ae_mask(hw_data->fuses); accel_pci_dev->sku = hw_data->get_sku(hw_data); accel_pci_dev->pci_dev = pdev; /* If the device has no acceleration engines then ignore it. */ if (!hw_data->accel_mask || !hw_data->ae_mask || ((~hw_data->ae_mask) & 0x01)) { dev_err(&pdev->dev, "No acceleration units found"); ret = -EFAULT; goto out_err; } /* Create dev top level debugfs entry */ snprintf(name, sizeof(name), "%s%s_dev%d", ADF_DEVICE_NAME_PREFIX, hw_data->dev_class->name, hw_data->instance_id); accel_dev->debugfs_dir = debugfs_create_dir(name, NULL); if (!accel_dev->debugfs_dir) { dev_err(&pdev->dev, "Could not create debugfs dir\n"); ret = -EINVAL; goto out_err; } /* Create device configuration table */ ret = adf_cfg_dev_add(accel_dev); if (ret) goto out_err; pcie_set_readrq(pdev, 1024); /* enable PCI device */ if (pci_enable_device(pdev)) { ret = -EFAULT; goto out_err; } /* set dma identifier */ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))) { dev_err(&pdev->dev, "No usable DMA configuration\n"); ret = -EFAULT; goto out_err; } else { pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); } } else { pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); } if (pci_request_regions(pdev, adf_driver_name)) { ret = -EFAULT; goto out_err; } /* Read accelerator capabilities mask */ pci_read_config_dword(pdev, ADF_DH895XCC_LEGFUSE_OFFSET, &hw_data->accel_capabilities_mask); /* Find and map all the device's BARS */ for (i = 0; i < ADF_PCI_MAX_BARS; i++) { struct adf_bar *bar = &accel_pci_dev->pci_bars[i]; bar_nr = i * 2; bar->base_addr = pci_resource_start(pdev, bar_nr); if (!bar->base_addr) break; bar->size = pci_resource_len(pdev, bar_nr); bar->virt_addr = pci_iomap(accel_pci_dev->pci_dev, bar_nr, 0); if (!bar->virt_addr) { dev_err(&pdev->dev, "Failed to map BAR %d\n", i); ret = -EFAULT; goto out_err; } } pci_set_master(pdev); if (adf_enable_aer(accel_dev, &adf_driver)) { dev_err(&pdev->dev, "Failed to enable aer\n"); ret = -EFAULT; goto out_err; } if (pci_save_state(pdev)) { dev_err(&pdev->dev, "Failed to save pci state\n"); ret = -ENOMEM; goto out_err; } ret = adf_dev_configure(accel_dev); if (ret) goto out_err; ret = adf_dev_init(accel_dev); if (ret) goto out_err; ret = adf_dev_start(accel_dev); if (ret) { adf_dev_stop(accel_dev); goto out_err; } return 0; out_err: adf_cleanup_accel(accel_dev); return ret; }
/* TODO - Read fdt to get this info, add BCM65500 platform driver detection */ static int __init xlp_find_pci_dev(void) { uint16_t i, j, base_id, id, num_devices, maxdevice=0; int idx; uint64_t mmio; uint32_t val, devid, irt, irq; struct platform_device* pplatdev; struct resource pres[2] = { {0} }; int total=num_possible_nodes(); for(i=0; i<total; i++) { j=node_online(i); if(!j) continue; maxdevice += XLP_MAX_DEVICE; } printk(KERN_DEBUG "XLP platform devices:\n"); for (i=0; i<maxdevice; i++) { for (j=0; j<XLP_MAX_FUNC; j++) { mmio = nlm_hal_get_dev_base(0, 0, i, j); val = nlm_hal_read_32bit_reg(mmio, 0); if(val == 0xFFFFFFFF) continue; // No PCI device devid = (val & 0xFFFF0000) >> 16; // printk("PCI-e Device ID 0x%04X found at bus 0, device %d, function %d\n", devid, i, j); idx = get_dev2drv(devid); if(idx < 0) continue; // Not found in table /* Register NAND only for other nodes. * Remove if condition when other devices are supported on other nodes as well. * */ if(!((i>8 && (devid == XLP_DEVID_NAND) ) || (i<8))) continue; num_devices = 1; /* Handle PCI-e devices with multiple platform devices */ if (devid == XLP2XX_DEVID_I2C) { if (is_nlm_xlp108() || is_nlm_xlp104() || is_nlm_xlp101()) num_devices = 2; else num_devices = 4; } while(num_devices--) { // Handle multiple IDs per PCI device base_id = dev2drv_table[idx].id++; id = base_id; /* Funny UART exception */ if (devid == XLP_DEVID_UART) id += PLAT8250_DEV_PLATFORM; pplatdev = platform_device_alloc((const char*)dev2drv_table[idx].drvname, id); if (!pplatdev) { printk(KERN_WARNING "platform_device_alloc failed\n"); continue; } if(devid == XLP_DEVID_UART) { pplatdev->dev.platform_data = &xlp_uart_port[base_id]; xlp_init_uart(base_id); } irt = (nlm_hal_read_32bit_reg(mmio, DEV_IRT_INFO) & 0xFFFF); irq = xlp_irt_to_irq(0, irt); pres[0].start = irq; pres[0].end = irq; pres[0].flags = IORESOURCE_IRQ; /* XLP2xx I2C devices share I/O memory - so let the platform driver manage * it instead of each platform device (I2C bus). */ if(devid == XLP2XX_DEVID_I2C) { printk(KERN_DEBUG "%12s.%d (PCIe B/D/F = 0/0x%02X/%d), IRQ = %3d\n", dev2drv_table[idx].drvname, base_id, devid, j, irq); platform_device_add_resources(pplatdev, pres, 1); } else { pres[1].start = mmio; pres[1].end = mmio + 0xFFF; pres[1].flags = IORESOURCE_MEM; printk(KERN_DEBUG "%12s.%d (PCIe B/D/F = 0/0x%02X/%d), IRQ = %3d, " "mem = 0x%llX-0x%llX,\n", dev2drv_table[idx].drvname, base_id, devid, j, irq, mmio, mmio + 0xFFF); platform_device_add_resources(pplatdev, pres, 2); } if (devid == XLP_DEVID_MMC){ mmc_pplat_dev = pplatdev; } pplatdev->dev.dma_mask = &xlp_dev_dmamask; pplatdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); platform_device_add(pplatdev); } } } return 0; }