diff options
Diffstat (limited to 'drivers/misc/habanalabs/common/firmware_if.c')
| -rw-r--r-- | drivers/misc/habanalabs/common/firmware_if.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/drivers/misc/habanalabs/common/firmware_if.c b/drivers/misc/habanalabs/common/firmware_if.c index ce87053d4fde..2e4d04ec6b53 100644 --- a/drivers/misc/habanalabs/common/firmware_if.c +++ b/drivers/misc/habanalabs/common/firmware_if.c @@ -972,6 +972,47 @@ int hl_fw_cpucp_power_get(struct hl_device *hdev, u64 *power) return rc; } +void hl_fw_ask_hard_reset_without_linux(struct hl_device *hdev) +{ + struct static_fw_load_mgr *static_loader = + &hdev->fw_loader.static_loader; + int rc; + + if (hdev->asic_prop.dynamic_fw_load) { + rc = hl_fw_dynamic_send_protocol_cmd(hdev, &hdev->fw_loader, + COMMS_RST_DEV, 0, false, + hdev->fw_loader.cpu_timeout); + if (rc) + dev_warn(hdev->dev, "Failed sending COMMS_RST_DEV\n"); + } else { + WREG32(static_loader->kmd_msg_to_cpu_reg, KMD_MSG_RST_DEV); + } +} + +void hl_fw_ask_halt_machine_without_linux(struct hl_device *hdev) +{ + struct static_fw_load_mgr *static_loader = + &hdev->fw_loader.static_loader; + int rc; + + if (hdev->device_cpu_is_halted) + return; + + /* Stop device CPU to make sure nothing bad happens */ + if (hdev->asic_prop.dynamic_fw_load) { + rc = hl_fw_dynamic_send_protocol_cmd(hdev, &hdev->fw_loader, + COMMS_GOTO_WFE, 0, true, + hdev->fw_loader.cpu_timeout); + if (rc) + dev_warn(hdev->dev, "Failed sending COMMS_GOTO_WFE\n"); + } else { + WREG32(static_loader->kmd_msg_to_cpu_reg, KMD_MSG_GOTO_WFE); + msleep(static_loader->cpu_reset_wait_msec); + } + + hdev->device_cpu_is_halted = true; +} + static void detect_cpu_boot_status(struct hl_device *hdev, u32 status) { /* Some of the status codes below are deprecated in newer f/w |