From 8c173dc41d38dcd286f92d75a56f8e927612150e Mon Sep 17 00:00:00 2001 From: Oded Gabbay Date: Wed, 8 May 2019 09:55:23 +0300 Subject: habanalabs: remove dead code in habanalabs_drv.c This patch removes some dead code that performs checks about variables with hard-coded values. The patch also moves the initialization of those variables to a separate function, that will possibly have different values per ASIC. Signed-off-by: Oded Gabbay --- drivers/misc/habanalabs/habanalabs_drv.c | 56 +++++++++++++++----------------- 1 file changed, 26 insertions(+), 30 deletions(-) diff --git a/drivers/misc/habanalabs/habanalabs_drv.c b/drivers/misc/habanalabs/habanalabs_drv.c index 42a8c0b7279a..6f6dbe93f1df 100644 --- a/drivers/misc/habanalabs/habanalabs_drv.c +++ b/drivers/misc/habanalabs/habanalabs_drv.c @@ -172,6 +172,17 @@ close_device: return rc; } +static void set_driver_behavior_per_device(struct hl_device *hdev) +{ + hdev->mmu_enable = 1; + hdev->cpu_enable = 1; + hdev->fw_loading = 1; + hdev->cpu_queues_enable = 1; + hdev->heartbeat = 1; + + hdev->reset_pcilink = 0; +} + /* * create_hdev - create habanalabs device instance * @@ -196,29 +207,25 @@ int create_hdev(struct hl_device **dev, struct pci_dev *pdev, if (!hdev) return -ENOMEM; + /* First, we must find out which ASIC are we handling. This is needed + * to configure the behavior of the driver (kernel parameters) + */ + if (pdev) { + hdev->asic_type = get_asic_type(pdev->device); + if (hdev->asic_type == ASIC_INVALID) { + dev_err(&pdev->dev, "Unsupported ASIC\n"); + rc = -ENODEV; + goto free_hdev; + } + } else { + hdev->asic_type = asic_type; + } + hdev->major = hl_major; hdev->reset_on_lockup = reset_on_lockup; - - /* Parameters for bring-up - set them to defaults */ - hdev->mmu_enable = 1; - hdev->cpu_enable = 1; - hdev->reset_pcilink = 0; - hdev->cpu_queues_enable = 1; - hdev->fw_loading = 1; hdev->pldm = 0; - hdev->heartbeat = 1; - - /* If CPU is disabled, no point in loading FW */ - if (!hdev->cpu_enable) - hdev->fw_loading = 0; - /* If we don't load FW, no need to initialize CPU queues */ - if (!hdev->fw_loading) - hdev->cpu_queues_enable = 0; - - /* If CPU queues not enabled, no way to do heartbeat */ - if (!hdev->cpu_queues_enable) - hdev->heartbeat = 0; + set_driver_behavior_per_device(hdev); if (timeout_locked) hdev->timeout_jiffies = msecs_to_jiffies(timeout_locked * 1000); @@ -228,17 +235,6 @@ int create_hdev(struct hl_device **dev, struct pci_dev *pdev, hdev->disabled = true; hdev->pdev = pdev; /* can be NULL in case of simulator device */ - if (pdev) { - hdev->asic_type = get_asic_type(pdev->device); - if (hdev->asic_type == ASIC_INVALID) { - dev_err(&pdev->dev, "Unsupported ASIC\n"); - rc = -ENODEV; - goto free_hdev; - } - } else { - hdev->asic_type = asic_type; - } - /* Set default DMA mask to 32 bits */ hdev->dma_mask = 32; -- cgit v1.2.3