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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 <oded.gabbay@gmail.com>
This commit is contained in:
Oded Gabbay 2019-05-08 09:55:23 +03:00
parent 19734970c9
commit 8c173dc41d
1 changed files with 28 additions and 32 deletions
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60
drivers/misc/habanalabs/habanalabs_drv.c
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@ -172,6 +172,17 @@ close_device:
return rc; 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 * create_hdev - create habanalabs device instance
* *
@ -196,38 +207,9 @@ int create_hdev(struct hl_device **dev, struct pci_dev *pdev,
if (!hdev) if (!hdev)
return -ENOMEM; return -ENOMEM;
hdev->major = hl_major; /* First, we must find out which ASIC are we handling. This is needed
hdev->reset_on_lockup = reset_on_lockup; * to configure the behavior of the driver (kernel parameters)
*/
/* 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;
if (timeout_locked)
hdev->timeout_jiffies = msecs_to_jiffies(timeout_locked * 1000);
else
hdev->timeout_jiffies = MAX_SCHEDULE_TIMEOUT;
hdev->disabled = true;
hdev->pdev = pdev; /* can be NULL in case of simulator device */
if (pdev) { if (pdev) {
hdev->asic_type = get_asic_type(pdev->device); hdev->asic_type = get_asic_type(pdev->device);
if (hdev->asic_type == ASIC_INVALID) { if (hdev->asic_type == ASIC_INVALID) {
@ -239,6 +221,20 @@ int create_hdev(struct hl_device **dev, struct pci_dev *pdev,
hdev->asic_type = asic_type; hdev->asic_type = asic_type;
} }
hdev->major = hl_major;
hdev->reset_on_lockup = reset_on_lockup;
hdev->pldm = 0;
set_driver_behavior_per_device(hdev);
if (timeout_locked)
hdev->timeout_jiffies = msecs_to_jiffies(timeout_locked * 1000);
else
hdev->timeout_jiffies = MAX_SCHEDULE_TIMEOUT;
hdev->disabled = true;
hdev->pdev = pdev; /* can be NULL in case of simulator device */
/* Set default DMA mask to 32 bits */ /* Set default DMA mask to 32 bits */
hdev->dma_mask = 32; hdev->dma_mask = 32;