63 lines
2.2 KiB
C
63 lines
2.2 KiB
C
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/*
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* Copyright 2021 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "priv.h"
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int
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ga100_flcn_fw_signature(struct nvkm_falcon_fw *fw, u32 *src_base_src)
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{
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struct nvkm_falcon *falcon = fw->falcon;
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struct nvkm_device *device = falcon->owner->device;
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u32 reg_fuse_version;
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int idx;
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FLCN_DBG(falcon, "brom: %08x %08x", fw->engine_id, fw->ucode_id);
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FLCN_DBG(falcon, "fuse_version: %d", fw->fuse_ver);
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if (fw->engine_id & 0x00000001) {
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reg_fuse_version = nvkm_rd32(device, 0x824140 + (fw->ucode_id - 1) * 4);
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} else
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if (fw->engine_id & 0x00000004) {
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reg_fuse_version = nvkm_rd32(device, 0x824100 + (fw->ucode_id - 1) * 4);
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} else
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if (fw->engine_id & 0x00000400) {
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reg_fuse_version = nvkm_rd32(device, 0x8241c0 + (fw->ucode_id - 1) * 4);
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} else {
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WARN_ON(1);
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return -ENOSYS;
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}
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FLCN_DBG(falcon, "reg_fuse_version: %08x", reg_fuse_version);
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if (reg_fuse_version) {
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reg_fuse_version = fls(reg_fuse_version);
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FLCN_DBG(falcon, "reg_fuse_version: %d", reg_fuse_version);
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if (WARN_ON(fw->fuse_ver < reg_fuse_version))
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return -EINVAL;
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idx = fw->fuse_ver - reg_fuse_version;
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} else {
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idx = fw->sig_nr - 1;
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}
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return idx;
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}
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