1 /* $NetBSD: nouveau_nvkm_subdev_acr_lsfw.c,v 1.3 2021/12/19 10:51:58 riastradh Exp $ */
2
3 /*
4 * Copyright 2019 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 */
24 #include <sys/cdefs.h>
25 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_acr_lsfw.c,v 1.3 2021/12/19 10:51:58 riastradh Exp $");
26
27 #include "priv.h"
28 #include <core/falcon.h>
29 #include <core/firmware.h>
30 #include <nvfw/fw.h>
31 #include <nvfw/ls.h>
32
33 #include <linux/nbsd-namespace.h>
34
35 void
nvkm_acr_lsfw_del(struct nvkm_acr_lsfw * lsfw)36 nvkm_acr_lsfw_del(struct nvkm_acr_lsfw *lsfw)
37 {
38 nvkm_blob_dtor(&lsfw->img);
39 nvkm_firmware_put(lsfw->sig);
40 list_del(&lsfw->head);
41 kfree(lsfw);
42 }
43
44 void
nvkm_acr_lsfw_del_all(struct nvkm_acr * acr)45 nvkm_acr_lsfw_del_all(struct nvkm_acr *acr)
46 {
47 struct nvkm_acr_lsfw *lsfw, *lsft;
48 list_for_each_entry_safe(lsfw, lsft, &acr->lsfw, head) {
49 nvkm_acr_lsfw_del(lsfw);
50 }
51 }
52
53 static struct nvkm_acr_lsfw *
nvkm_acr_lsfw_get(struct nvkm_acr * acr,enum nvkm_acr_lsf_id id)54 nvkm_acr_lsfw_get(struct nvkm_acr *acr, enum nvkm_acr_lsf_id id)
55 {
56 struct nvkm_acr_lsfw *lsfw;
57 list_for_each_entry(lsfw, &acr->lsfw, head) {
58 if (lsfw->id == id)
59 return lsfw;
60 }
61 return NULL;
62 }
63
64 struct nvkm_acr_lsfw *
nvkm_acr_lsfw_add(const struct nvkm_acr_lsf_func * func,struct nvkm_acr * acr,struct nvkm_falcon * falcon,enum nvkm_acr_lsf_id id)65 nvkm_acr_lsfw_add(const struct nvkm_acr_lsf_func *func, struct nvkm_acr *acr,
66 struct nvkm_falcon *falcon, enum nvkm_acr_lsf_id id)
67 {
68 struct nvkm_acr_lsfw *lsfw;
69
70 if (!acr)
71 return ERR_PTR(-ENOSYS);
72
73 lsfw = nvkm_acr_lsfw_get(acr, id);
74 if (lsfw && lsfw->func) {
75 nvkm_error(&acr->subdev, "LSFW %d redefined\n", id);
76 return ERR_PTR(-EEXIST);
77 }
78
79 if (!lsfw) {
80 if (!(lsfw = kzalloc(sizeof(*lsfw), GFP_KERNEL)))
81 return ERR_PTR(-ENOMEM);
82
83 lsfw->id = id;
84 list_add_tail(&lsfw->head, &acr->lsfw);
85 }
86
87 lsfw->func = func;
88 lsfw->falcon = falcon;
89 return lsfw;
90 }
91
92 static struct nvkm_acr_lsfw *
nvkm_acr_lsfw_load_sig_image_desc_(struct nvkm_subdev * subdev,struct nvkm_falcon * falcon,enum nvkm_acr_lsf_id id,const char * path,int ver,const struct nvkm_acr_lsf_func * func,const struct firmware ** pdesc)93 nvkm_acr_lsfw_load_sig_image_desc_(struct nvkm_subdev *subdev,
94 struct nvkm_falcon *falcon,
95 enum nvkm_acr_lsf_id id,
96 const char *path, int ver,
97 const struct nvkm_acr_lsf_func *func,
98 const struct firmware **pdesc)
99 {
100 struct nvkm_acr *acr = subdev->device->acr;
101 struct nvkm_acr_lsfw *lsfw;
102 int ret;
103
104 if (IS_ERR((lsfw = nvkm_acr_lsfw_add(func, acr, falcon, id))))
105 return lsfw;
106
107 ret = nvkm_firmware_load_name(subdev, path, "sig", ver, &lsfw->sig);
108 if (ret)
109 goto done;
110
111 ret = nvkm_firmware_load_blob(subdev, path, "image", ver, &lsfw->img);
112 if (ret)
113 goto done;
114
115 ret = nvkm_firmware_load_name(subdev, path, "desc", ver, pdesc);
116 done:
117 if (ret) {
118 nvkm_acr_lsfw_del(lsfw);
119 return ERR_PTR(ret);
120 }
121
122 return lsfw;
123 }
124
125 static void
nvkm_acr_lsfw_from_desc(const struct nvfw_ls_desc_head * desc,struct nvkm_acr_lsfw * lsfw)126 nvkm_acr_lsfw_from_desc(const struct nvfw_ls_desc_head *desc,
127 struct nvkm_acr_lsfw *lsfw)
128 {
129 lsfw->bootloader_size = ALIGN(desc->bootloader_size, 256);
130 lsfw->bootloader_imem_offset = desc->bootloader_imem_offset;
131
132 lsfw->app_size = ALIGN(desc->app_size, 256);
133 lsfw->app_start_offset = desc->app_start_offset;
134 lsfw->app_imem_entry = desc->app_imem_entry;
135 lsfw->app_resident_code_offset = desc->app_resident_code_offset;
136 lsfw->app_resident_code_size = desc->app_resident_code_size;
137 lsfw->app_resident_data_offset = desc->app_resident_data_offset;
138 lsfw->app_resident_data_size = desc->app_resident_data_size;
139
140 lsfw->ucode_size = ALIGN(lsfw->app_resident_data_offset, 256) +
141 lsfw->bootloader_size;
142 lsfw->data_size = lsfw->app_size + lsfw->bootloader_size -
143 lsfw->ucode_size;
144 }
145
146 int
nvkm_acr_lsfw_load_sig_image_desc(struct nvkm_subdev * subdev,struct nvkm_falcon * falcon,enum nvkm_acr_lsf_id id,const char * path,int ver,const struct nvkm_acr_lsf_func * func)147 nvkm_acr_lsfw_load_sig_image_desc(struct nvkm_subdev *subdev,
148 struct nvkm_falcon *falcon,
149 enum nvkm_acr_lsf_id id,
150 const char *path, int ver,
151 const struct nvkm_acr_lsf_func *func)
152 {
153 const struct firmware *fw;
154 struct nvkm_acr_lsfw *lsfw;
155
156 lsfw = nvkm_acr_lsfw_load_sig_image_desc_(subdev, falcon, id, path, ver,
157 func, &fw);
158 if (IS_ERR(lsfw))
159 return PTR_ERR(lsfw);
160
161 nvkm_acr_lsfw_from_desc(&nvfw_ls_desc(subdev, fw->data)->head, lsfw);
162 nvkm_firmware_put(fw);
163 return 0;
164 }
165
166 int
nvkm_acr_lsfw_load_sig_image_desc_v1(struct nvkm_subdev * subdev,struct nvkm_falcon * falcon,enum nvkm_acr_lsf_id id,const char * path,int ver,const struct nvkm_acr_lsf_func * func)167 nvkm_acr_lsfw_load_sig_image_desc_v1(struct nvkm_subdev *subdev,
168 struct nvkm_falcon *falcon,
169 enum nvkm_acr_lsf_id id,
170 const char *path, int ver,
171 const struct nvkm_acr_lsf_func *func)
172 {
173 const struct firmware *fw;
174 struct nvkm_acr_lsfw *lsfw;
175
176 lsfw = nvkm_acr_lsfw_load_sig_image_desc_(subdev, falcon, id, path, ver,
177 func, &fw);
178 if (IS_ERR(lsfw))
179 return PTR_ERR(lsfw);
180
181 nvkm_acr_lsfw_from_desc(&nvfw_ls_desc_v1(subdev, fw->data)->head, lsfw);
182 nvkm_firmware_put(fw);
183 return 0;
184 }
185
186 int
nvkm_acr_lsfw_load_bl_inst_data_sig(struct nvkm_subdev * subdev,struct nvkm_falcon * falcon,enum nvkm_acr_lsf_id id,const char * path,int ver,const struct nvkm_acr_lsf_func * func)187 nvkm_acr_lsfw_load_bl_inst_data_sig(struct nvkm_subdev *subdev,
188 struct nvkm_falcon *falcon,
189 enum nvkm_acr_lsf_id id,
190 const char *path, int ver,
191 const struct nvkm_acr_lsf_func *func)
192 {
193 struct nvkm_acr *acr = subdev->device->acr;
194 struct nvkm_acr_lsfw *lsfw;
195 const struct firmware *bl = NULL, *inst = NULL, *data = NULL;
196 const struct nvfw_bin_hdr *hdr;
197 const struct nvfw_bl_desc *desc;
198 u32 *bldata;
199 int ret;
200
201 if (IS_ERR((lsfw = nvkm_acr_lsfw_add(func, acr, falcon, id))))
202 return PTR_ERR(lsfw);
203
204 ret = nvkm_firmware_load_name(subdev, path, "bl", ver, &bl);
205 if (ret)
206 goto done;
207
208 hdr = nvfw_bin_hdr(subdev, bl->data);
209 desc = nvfw_bl_desc(subdev, bl->data + hdr->header_offset);
210 bldata = (void *)(bl->data + hdr->data_offset);
211
212 ret = nvkm_firmware_load_name(subdev, path, "inst", ver, &inst);
213 if (ret)
214 goto done;
215
216 ret = nvkm_firmware_load_name(subdev, path, "data", ver, &data);
217 if (ret)
218 goto done;
219
220 ret = nvkm_firmware_load_name(subdev, path, "sig", ver, &lsfw->sig);
221 if (ret)
222 goto done;
223
224 lsfw->bootloader_size = ALIGN(desc->code_size, 256);
225 lsfw->bootloader_imem_offset = desc->start_tag << 8;
226
227 lsfw->app_start_offset = lsfw->bootloader_size;
228 lsfw->app_imem_entry = 0;
229 lsfw->app_resident_code_offset = 0;
230 lsfw->app_resident_code_size = ALIGN(inst->size, 256);
231 lsfw->app_resident_data_offset = lsfw->app_resident_code_size;
232 lsfw->app_resident_data_size = ALIGN(data->size, 256);
233 lsfw->app_size = lsfw->app_resident_code_size +
234 lsfw->app_resident_data_size;
235
236 lsfw->img.size = lsfw->bootloader_size + lsfw->app_size;
237 if (!(lsfw->img.data = kzalloc(lsfw->img.size, GFP_KERNEL))) {
238 ret = -ENOMEM;
239 goto done;
240 }
241
242 memcpy(lsfw->img.data, bldata, lsfw->bootloader_size);
243 memcpy(lsfw->img.data + lsfw->app_start_offset +
244 lsfw->app_resident_code_offset, inst->data, inst->size);
245 memcpy(lsfw->img.data + lsfw->app_start_offset +
246 lsfw->app_resident_data_offset, data->data, data->size);
247
248 lsfw->ucode_size = ALIGN(lsfw->app_resident_data_offset, 256) +
249 lsfw->bootloader_size;
250 lsfw->data_size = lsfw->app_size + lsfw->bootloader_size -
251 lsfw->ucode_size;
252
253 done:
254 if (ret)
255 nvkm_acr_lsfw_del(lsfw);
256 nvkm_firmware_put(data);
257 nvkm_firmware_put(inst);
258 nvkm_firmware_put(bl);
259 return ret;
260 }
261