1*a51c69eeSBen Skeggs /*
2*a51c69eeSBen Skeggs * Copyright 2021 Red Hat Inc.
3*a51c69eeSBen Skeggs *
4*a51c69eeSBen Skeggs * Permission is hereby granted, free of charge, to any person obtaining a
5*a51c69eeSBen Skeggs * copy of this software and associated documentation files (the "Software"),
6*a51c69eeSBen Skeggs * to deal in the Software without restriction, including without limitation
7*a51c69eeSBen Skeggs * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8*a51c69eeSBen Skeggs * and/or sell copies of the Software, and to permit persons to whom the
9*a51c69eeSBen Skeggs * Software is furnished to do so, subject to the following conditions:
10*a51c69eeSBen Skeggs *
11*a51c69eeSBen Skeggs * The above copyright notice and this permission notice shall be included in
12*a51c69eeSBen Skeggs * all copies or substantial portions of the Software.
13*a51c69eeSBen Skeggs *
14*a51c69eeSBen Skeggs * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15*a51c69eeSBen Skeggs * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16*a51c69eeSBen Skeggs * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17*a51c69eeSBen Skeggs * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18*a51c69eeSBen Skeggs * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19*a51c69eeSBen Skeggs * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20*a51c69eeSBen Skeggs * OTHER DEALINGS IN THE SOFTWARE.
21*a51c69eeSBen Skeggs */
22*a51c69eeSBen Skeggs #include "priv.h"
23*a51c69eeSBen Skeggs
24*a51c69eeSBen Skeggs int
ga100_flcn_fw_signature(struct nvkm_falcon_fw * fw,u32 * src_base_src)25*a51c69eeSBen Skeggs ga100_flcn_fw_signature(struct nvkm_falcon_fw *fw, u32 *src_base_src)
26*a51c69eeSBen Skeggs {
27*a51c69eeSBen Skeggs struct nvkm_falcon *falcon = fw->falcon;
28*a51c69eeSBen Skeggs struct nvkm_device *device = falcon->owner->device;
29*a51c69eeSBen Skeggs u32 reg_fuse_version;
30*a51c69eeSBen Skeggs int idx;
31*a51c69eeSBen Skeggs
32*a51c69eeSBen Skeggs FLCN_DBG(falcon, "brom: %08x %08x", fw->engine_id, fw->ucode_id);
33*a51c69eeSBen Skeggs FLCN_DBG(falcon, "fuse_version: %d", fw->fuse_ver);
34*a51c69eeSBen Skeggs
35*a51c69eeSBen Skeggs if (fw->engine_id & 0x00000001) {
36*a51c69eeSBen Skeggs reg_fuse_version = nvkm_rd32(device, 0x824140 + (fw->ucode_id - 1) * 4);
37*a51c69eeSBen Skeggs } else
38*a51c69eeSBen Skeggs if (fw->engine_id & 0x00000004) {
39*a51c69eeSBen Skeggs reg_fuse_version = nvkm_rd32(device, 0x824100 + (fw->ucode_id - 1) * 4);
40*a51c69eeSBen Skeggs } else
41*a51c69eeSBen Skeggs if (fw->engine_id & 0x00000400) {
42*a51c69eeSBen Skeggs reg_fuse_version = nvkm_rd32(device, 0x8241c0 + (fw->ucode_id - 1) * 4);
43*a51c69eeSBen Skeggs } else {
44*a51c69eeSBen Skeggs WARN_ON(1);
45*a51c69eeSBen Skeggs return -ENOSYS;
46*a51c69eeSBen Skeggs }
47*a51c69eeSBen Skeggs
48*a51c69eeSBen Skeggs FLCN_DBG(falcon, "reg_fuse_version: %08x", reg_fuse_version);
49*a51c69eeSBen Skeggs if (reg_fuse_version) {
50*a51c69eeSBen Skeggs reg_fuse_version = fls(reg_fuse_version);
51*a51c69eeSBen Skeggs FLCN_DBG(falcon, "reg_fuse_version: %d", reg_fuse_version);
52*a51c69eeSBen Skeggs
53*a51c69eeSBen Skeggs if (WARN_ON(fw->fuse_ver < reg_fuse_version))
54*a51c69eeSBen Skeggs return -EINVAL;
55*a51c69eeSBen Skeggs
56*a51c69eeSBen Skeggs idx = fw->fuse_ver - reg_fuse_version;
57*a51c69eeSBen Skeggs } else {
58*a51c69eeSBen Skeggs idx = fw->sig_nr - 1;
59*a51c69eeSBen Skeggs }
60*a51c69eeSBen Skeggs
61*a51c69eeSBen Skeggs return idx;
62*a51c69eeSBen Skeggs }
63