1 /*
2 * Copyright 2021 Red Hat Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * 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 OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 */
22 #include "priv.h"
23
24 void
ga100_flcn_intr_retrigger(struct nvkm_falcon * falcon)25 ga100_flcn_intr_retrigger(struct nvkm_falcon *falcon)
26 {
27 nvkm_falcon_wr32(falcon, 0x3e8, 0x00000001);
28 }
29
30 int
ga100_flcn_fw_signature(struct nvkm_falcon_fw * fw,u32 * src_base_src)31 ga100_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 } else
44 if (fw->engine_id & 0x00000004) {
45 reg_fuse_version = nvkm_rd32(device, 0x824100 + (fw->ucode_id - 1) * 4);
46 } else
47 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