diff options
| author | Oded Gabbay <ogabbay@kernel.org> | 2021-04-12 09:52:05 +0300 |
|---|---|---|
| committer | Oded Gabbay <ogabbay@kernel.org> | 2021-05-08 11:21:57 +0300 |
| commit | 27a9e35daad080f3770401a1a11eda2f9f7732dd (patch) | |
| tree | 6dddd20d44aa5c95ff04f1373e11f963eee6c083 /drivers/misc/habanalabs/common/habanalabs_drv.c | |
| parent | b5fd82a7af198db04408e218f64dc3d4178d585a (diff) | |
| download | linux-27a9e35daad080f3770401a1a11eda2f9f7732dd.tar.gz | |
habanalabs: ignore f/w status error
In case firmware has a bug and erroneously reports a status error
(e.g. device unusable) during boot, allow the user to tell the driver
to continue the boot regardless of the error status.
This will be done via kernel parameter which exposes a mask. The
user that loads the driver can decide exactly which status error to
ignore and which to take into account. The bitmask is according to
defines in hl_boot_if.h
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Diffstat (limited to 'drivers/misc/habanalabs/common/habanalabs_drv.c')
| -rw-r--r-- | drivers/misc/habanalabs/common/habanalabs_drv.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/misc/habanalabs/common/habanalabs_drv.c b/drivers/misc/habanalabs/common/habanalabs_drv.c index 7135f1e03864..64d1530db985 100644 --- a/drivers/misc/habanalabs/common/habanalabs_drv.c +++ b/drivers/misc/habanalabs/common/habanalabs_drv.c @@ -30,6 +30,7 @@ static DEFINE_MUTEX(hl_devs_idr_lock); static int timeout_locked = 30; static int reset_on_lockup = 1; static int memory_scrub = 1; +static ulong boot_error_status_mask = ULONG_MAX; module_param(timeout_locked, int, 0444); MODULE_PARM_DESC(timeout_locked, @@ -43,6 +44,10 @@ module_param(memory_scrub, int, 0444); MODULE_PARM_DESC(memory_scrub, "Scrub device memory in various states (0 = no, 1 = yes, default yes)"); +module_param(boot_error_status_mask, ulong, 0444); +MODULE_PARM_DESC(boot_error_status_mask, + "Mask of the error status during device CPU boot (If bitX is cleared then error X is masked. Default all 1's)"); + #define PCI_VENDOR_ID_HABANALABS 0x1da3 #define PCI_IDS_GOYA 0x0001 @@ -319,6 +324,8 @@ int create_hdev(struct hl_device **dev, struct pci_dev *pdev, hdev->major = hl_major; hdev->reset_on_lockup = reset_on_lockup; hdev->memory_scrub = memory_scrub; + hdev->boot_error_status_mask = boot_error_status_mask; + hdev->pldm = 0; set_driver_behavior_per_device(hdev); |