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1/*2 * Copyright 2021 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR20 * OTHER DEALINGS IN THE SOFTWARE.21 */22#include "priv.h"23 24void25ga100_flcn_intr_retrigger(struct nvkm_falcon *falcon)26{27 nvkm_falcon_wr32(falcon, 0x3e8, 0x00000001);28}29 30int31ga100_flcn_fw_signature(struct nvkm_falcon_fw *fw, u32 *src_base_src)32{33 struct nvkm_falcon *falcon = fw->falcon;34 struct nvkm_device *device = falcon->owner->device;35 u32 reg_fuse_version;36 int idx;37 38 FLCN_DBG(falcon, "brom: %08x %08x", fw->engine_id, fw->ucode_id);39 FLCN_DBG(falcon, "fuse_version: %d", fw->fuse_ver);40 41 if (fw->engine_id & 0x00000001) {42 reg_fuse_version = nvkm_rd32(device, 0x824140 + (fw->ucode_id - 1) * 4);43 } else44 if (fw->engine_id & 0x00000004) {45 reg_fuse_version = nvkm_rd32(device, 0x824100 + (fw->ucode_id - 1) * 4);46 } else47 if (fw->engine_id & 0x00000400) {48 reg_fuse_version = nvkm_rd32(device, 0x8241c0 + (fw->ucode_id - 1) * 4);49 } else {50 WARN_ON(1);51 return -ENOSYS;52 }53 54 FLCN_DBG(falcon, "reg_fuse_version: %08x", reg_fuse_version);55 if (reg_fuse_version) {56 reg_fuse_version = fls(reg_fuse_version);57 FLCN_DBG(falcon, "reg_fuse_version: %d", reg_fuse_version);58 59 if (WARN_ON(fw->fuse_ver < reg_fuse_version))60 return -EINVAL;61 62 idx = fw->fuse_ver - reg_fuse_version;63 } else {64 idx = fw->sig_nr - 1;65 }66 67 return idx;68}69