// 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);
}