// SPDX-License-Identifier: MIT /* * Copyright © 2014-2019 Intel Corporation */ #include "gt/intel_gt.h" #include "intel_huc_fw.h" #include "i915_drv.h" /** * intel_huc_fw_upload() - load HuC uCode to device via DMA transfer * @huc: intel_huc structure * * Called from intel_uc_init_hw() during driver load, resume from sleep and * after a GPU reset. Note that HuC must be loaded before GuC. * * The firmware image should have already been fetched into memory, so only * check that fetch succeeded, and then transfer the image to the h/w. * * Return: non-zero code on error */ int intel_huc_fw_upload(struct intel_huc *huc) { if (intel_huc_is_loaded_by_gsc(huc)) return -ENODEV; /* HW doesn't look at destination address for HuC, so set it to 0 */ return intel_uc_fw_upload(&huc->fw, 0, HUC_UKERNEL); }