diff options
Diffstat (limited to 'drivers/misc/habanalabs/device.c')
| -rw-r--r-- | drivers/misc/habanalabs/device.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/misc/habanalabs/device.c b/drivers/misc/habanalabs/device.c index 65a5a5c52a48..df709767c7ea 100644 --- a/drivers/misc/habanalabs/device.c +++ b/drivers/misc/habanalabs/device.c @@ -838,6 +838,22 @@ int hl_device_reset(struct hl_device *hdev, bool hard_reset, if (rc) return 0; + if (hard_reset) { + /* Disable PCI access from device F/W so he won't send + * us additional interrupts. We disable MSI/MSI-X at + * the halt_engines function and we can't have the F/W + * sending us interrupts after that. We need to disable + * the access here because if the device is marked + * disable, the message won't be send. Also, in case + * of heartbeat, the device CPU is marked as disable + * so this message won't be sent + */ + if (hl_fw_send_pci_access_msg(hdev, + ARMCP_PACKET_DISABLE_PCI_ACCESS)) + dev_warn(hdev->dev, + "Failed to disable PCI access by F/W\n"); + } + /* This also blocks future CS/VM/JOB completion operations */ hdev->disabled = true; |