1 // SPDX-License-Identifier: MIT 2 /* 3 * Copyright © 2014-2019 Intel Corporation 4 */ 5 6 #include "gt/intel_gt.h" 7 #include "intel_huc_fw.h" 8 #include "i915_drv.h" 9 10 /** 11 * intel_huc_fw_init_early() - initializes HuC firmware struct 12 * @huc: intel_huc struct 13 * 14 * On platforms with HuC selects firmware for uploading 15 */ 16 void intel_huc_fw_init_early(struct intel_huc *huc) 17 { 18 struct intel_gt *gt = huc_to_gt(huc); 19 struct intel_uc *uc = >->uc; 20 struct drm_i915_private *i915 = gt->i915; 21 22 intel_uc_fw_init_early(&huc->fw, INTEL_UC_FW_TYPE_HUC, 23 intel_uc_uses_guc(uc), 24 INTEL_INFO(i915)->platform, INTEL_REVID(i915)); 25 } 26 27 /** 28 * intel_huc_fw_upload() - load HuC uCode to device 29 * @huc: intel_huc structure 30 * 31 * Called from intel_uc_init_hw() during driver load, resume from sleep and 32 * after a GPU reset. Note that HuC must be loaded before GuC. 33 * 34 * The firmware image should have already been fetched into memory, so only 35 * check that fetch succeeded, and then transfer the image to the h/w. 36 * 37 * Return: non-zero code on error 38 */ 39 int intel_huc_fw_upload(struct intel_huc *huc) 40 { 41 /* HW doesn't look at destination address for HuC, so set it to 0 */ 42 return intel_uc_fw_upload(&huc->fw, 0, HUC_UKERNEL); 43 } 44