1 /*
2  * Copyright 2019 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 #include <core/falcon.h>
24 #include <core/firmware.h>
25 #include <nvfw/fw.h>
26 #include <nvfw/ls.h>
27 
28 void
nvkm_acr_lsfw_del(struct nvkm_acr_lsfw * lsfw)29 nvkm_acr_lsfw_del(struct nvkm_acr_lsfw *lsfw)
30 {
31 	nvkm_blob_dtor(&lsfw->img);
32 	kfree(lsfw->sigs);
33 	nvkm_firmware_put(lsfw->sig);
34 	list_del(&lsfw->head);
35 	kfree(lsfw);
36 }
37 
38 void
nvkm_acr_lsfw_del_all(struct nvkm_acr * acr)39 nvkm_acr_lsfw_del_all(struct nvkm_acr *acr)
40 {
41 	struct nvkm_acr_lsfw *lsfw, *lsft;
42 	list_for_each_entry_safe(lsfw, lsft, &acr->lsfw, head) {
43 		nvkm_acr_lsfw_del(lsfw);
44 	}
45 }
46 
47 static struct nvkm_acr_lsfw *
nvkm_acr_lsfw_get(struct nvkm_acr * acr,enum nvkm_acr_lsf_id id)48 nvkm_acr_lsfw_get(struct nvkm_acr *acr, enum nvkm_acr_lsf_id id)
49 {
50 	struct nvkm_acr_lsfw *lsfw;
51 	list_for_each_entry(lsfw, &acr->lsfw, head) {
52 		if (lsfw->id == id)
53 			return lsfw;
54 	}
55 	return NULL;
56 }
57 
58 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)59 nvkm_acr_lsfw_add(const struct nvkm_acr_lsf_func *func, struct nvkm_acr *acr,
60 		 struct nvkm_falcon *falcon, enum nvkm_acr_lsf_id id)
61 {
62 	struct nvkm_acr_lsfw *lsfw;
63 
64 	if (!acr || list_empty(&acr->hsfw))
65 		return ERR_PTR(-ENOSYS);
66 
67 	lsfw = nvkm_acr_lsfw_get(acr, id);
68 	if (lsfw && lsfw->func) {
69 		nvkm_error(&acr->subdev, "LSFW %d redefined\n", id);
70 		return ERR_PTR(-EEXIST);
71 	}
72 
73 	if (!lsfw) {
74 		if (!(lsfw = kzalloc(sizeof(*lsfw), GFP_KERNEL)))
75 			return ERR_PTR(-ENOMEM);
76 
77 		lsfw->id = id;
78 		list_add_tail(&lsfw->head, &acr->lsfw);
79 	}
80 
81 	lsfw->func = func;
82 	lsfw->falcon = falcon;
83 	return lsfw;
84 }
85 
86 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)87 nvkm_acr_lsfw_load_sig_image_desc_(struct nvkm_subdev *subdev,
88 				   struct nvkm_falcon *falcon,
89 				   enum nvkm_acr_lsf_id id,
90 				   const char *path, int ver,
91 				   const struct nvkm_acr_lsf_func *func,
92 				   const struct firmware **pdesc)
93 {
94 	struct nvkm_acr *acr = subdev->device->acr;
95 	struct nvkm_acr_lsfw *lsfw;
96 	int ret;
97 
98 	if (IS_ERR((lsfw = nvkm_acr_lsfw_add(func, acr, falcon, id))))
99 		return lsfw;
100 
101 	ret = nvkm_firmware_load_name(subdev, path, "sig", ver, &lsfw->sig);
102 	if (ret)
103 		goto done;
104 
105 	ret = nvkm_firmware_load_blob(subdev, path, "image", ver, &lsfw->img);
106 	if (ret)
107 		goto done;
108 
109 	ret = nvkm_firmware_load_name(subdev, path, "desc", ver, pdesc);
110 done:
111 	if (ret) {
112 		nvkm_acr_lsfw_del(lsfw);
113 		return ERR_PTR(ret);
114 	}
115 
116 	return lsfw;
117 }
118 
119 static void
nvkm_acr_lsfw_from_desc(const struct nvfw_ls_desc_head * desc,struct nvkm_acr_lsfw * lsfw)120 nvkm_acr_lsfw_from_desc(const struct nvfw_ls_desc_head *desc,
121 			struct nvkm_acr_lsfw *lsfw)
122 {
123 	lsfw->bootloader_size = ALIGN(desc->bootloader_size, 256);
124 	lsfw->bootloader_imem_offset = desc->bootloader_imem_offset;
125 
126 	lsfw->app_size = ALIGN(desc->app_size, 256);
127 	lsfw->app_start_offset = desc->app_start_offset;
128 	lsfw->app_imem_entry = desc->app_imem_entry;
129 	lsfw->app_resident_code_offset = desc->app_resident_code_offset;
130 	lsfw->app_resident_code_size = desc->app_resident_code_size;
131 	lsfw->app_resident_data_offset = desc->app_resident_data_offset;
132 	lsfw->app_resident_data_size = desc->app_resident_data_size;
133 
134 	lsfw->ucode_size = ALIGN(lsfw->app_resident_data_offset, 256) +
135 			   lsfw->bootloader_size;
136 	lsfw->data_size = lsfw->app_size + lsfw->bootloader_size -
137 			  lsfw->ucode_size;
138 }
139 
140 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)141 nvkm_acr_lsfw_load_sig_image_desc(struct nvkm_subdev *subdev,
142 				  struct nvkm_falcon *falcon,
143 				  enum nvkm_acr_lsf_id id,
144 				  const char *path, int ver,
145 				  const struct nvkm_acr_lsf_func *func)
146 {
147 	const struct firmware *fw;
148 	struct nvkm_acr_lsfw *lsfw;
149 
150 	lsfw = nvkm_acr_lsfw_load_sig_image_desc_(subdev, falcon, id, path, ver,
151 						  func, &fw);
152 	if (IS_ERR(lsfw))
153 		return PTR_ERR(lsfw);
154 
155 	nvkm_acr_lsfw_from_desc(&nvfw_ls_desc(subdev, fw->data)->head, lsfw);
156 	nvkm_firmware_put(fw);
157 	return 0;
158 }
159 
160 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)161 nvkm_acr_lsfw_load_sig_image_desc_v1(struct nvkm_subdev *subdev,
162 				     struct nvkm_falcon *falcon,
163 				     enum nvkm_acr_lsf_id id,
164 				     const char *path, int ver,
165 				     const struct nvkm_acr_lsf_func *func)
166 {
167 	const struct firmware *fw;
168 	struct nvkm_acr_lsfw *lsfw;
169 
170 	lsfw = nvkm_acr_lsfw_load_sig_image_desc_(subdev, falcon, id, path, ver,
171 						  func, &fw);
172 	if (IS_ERR(lsfw))
173 		return PTR_ERR(lsfw);
174 
175 	nvkm_acr_lsfw_from_desc(&nvfw_ls_desc_v1(subdev, fw->data)->head, lsfw);
176 	nvkm_firmware_put(fw);
177 	return 0;
178 }
179 
180 int
nvkm_acr_lsfw_load_sig_image_desc_v2(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)181 nvkm_acr_lsfw_load_sig_image_desc_v2(struct nvkm_subdev *subdev,
182 				     struct nvkm_falcon *falcon,
183 				     enum nvkm_acr_lsf_id id,
184 				     const char *path, int ver,
185 				     const struct nvkm_acr_lsf_func *func)
186 {
187 	const struct firmware *fw;
188 	struct nvkm_acr_lsfw *lsfw;
189 	const struct nvfw_ls_desc_v2 *desc;
190 	int ret = 0;
191 
192 	lsfw = nvkm_acr_lsfw_load_sig_image_desc_(subdev, falcon, id, path, ver, func, &fw);
193 	if (IS_ERR(lsfw))
194 		return PTR_ERR(lsfw);
195 
196 	desc = nvfw_ls_desc_v2(subdev, fw->data);
197 
198 	lsfw->secure_bootloader = desc->secure_bootloader;
199 	lsfw->bootloader_size = ALIGN(desc->bootloader_size, 256);
200 	lsfw->bootloader_imem_offset = desc->bootloader_imem_offset;
201 
202 	lsfw->app_size = ALIGN(desc->app_size, 256);
203 	lsfw->app_start_offset = desc->app_start_offset;
204 	lsfw->app_imem_entry = desc->app_imem_entry;
205 	lsfw->app_resident_code_offset = desc->app_resident_code_offset;
206 	lsfw->app_resident_code_size = desc->app_resident_code_size;
207 	lsfw->app_resident_data_offset = desc->app_resident_data_offset;
208 	lsfw->app_resident_data_size = desc->app_resident_data_size;
209 	lsfw->app_imem_offset = desc->app_imem_offset;
210 	lsfw->app_dmem_offset = desc->app_dmem_offset;
211 
212 	lsfw->ucode_size = ALIGN(lsfw->app_resident_data_offset, 256) + lsfw->bootloader_size;
213 	lsfw->data_size = lsfw->app_size + lsfw->bootloader_size - lsfw->ucode_size;
214 
215 	nvkm_firmware_put(fw);
216 
217 	if (lsfw->secure_bootloader) {
218 		const struct firmware *hsbl;
219 		const struct nvfw_ls_hsbl_bin_hdr *hdr;
220 		const struct nvfw_ls_hsbl_hdr *hshdr;
221 		u32 loc, sig, cnt, *meta;
222 
223 		ret = nvkm_firmware_load_name(subdev, path, "hs_bl_sig", ver, &hsbl);
224 		if (ret)
225 			return ret;
226 
227 		hdr = nvfw_ls_hsbl_bin_hdr(subdev, hsbl->data);
228 		hshdr = nvfw_ls_hsbl_hdr(subdev, hsbl->data + hdr->header_offset);
229 		meta = (u32 *)(hsbl->data + hshdr->meta_data_offset);
230 		loc = *(u32 *)(hsbl->data + hshdr->patch_loc);
231 		sig = *(u32 *)(hsbl->data + hshdr->patch_sig);
232 		cnt = *(u32 *)(hsbl->data + hshdr->num_sig);
233 
234 		lsfw->fuse_ver = meta[0];
235 		lsfw->engine_id = meta[1];
236 		lsfw->ucode_id = meta[2];
237 		lsfw->sig_size = hshdr->sig_prod_size / cnt;
238 		lsfw->sig_nr = cnt;
239 		lsfw->sigs = kmemdup(hsbl->data + hshdr->sig_prod_offset + sig,
240 				     lsfw->sig_nr * lsfw->sig_size, GFP_KERNEL);
241 		nvkm_firmware_put(hsbl);
242 		if (!lsfw->sigs)
243 			ret = -ENOMEM;
244 	}
245 
246 	return ret;
247 }
248 
249 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)250 nvkm_acr_lsfw_load_bl_inst_data_sig(struct nvkm_subdev *subdev,
251 				    struct nvkm_falcon *falcon,
252 				    enum nvkm_acr_lsf_id id,
253 				    const char *path, int ver,
254 				    const struct nvkm_acr_lsf_func *func)
255 {
256 	struct nvkm_acr *acr = subdev->device->acr;
257 	struct nvkm_acr_lsfw *lsfw;
258 	const struct firmware *bl = NULL, *inst = NULL, *data = NULL;
259 	const struct nvfw_bin_hdr *hdr;
260 	const struct nvfw_bl_desc *desc;
261 	u32 *bldata;
262 	int ret;
263 
264 	if (IS_ERR((lsfw = nvkm_acr_lsfw_add(func, acr, falcon, id))))
265 		return PTR_ERR(lsfw);
266 
267 	ret = nvkm_firmware_load_name(subdev, path, "bl", ver, &bl);
268 	if (ret)
269 		goto done;
270 
271 	hdr = nvfw_bin_hdr(subdev, bl->data);
272 	desc = nvfw_bl_desc(subdev, bl->data + hdr->header_offset);
273 	bldata = (void *)(bl->data + hdr->data_offset);
274 
275 	ret = nvkm_firmware_load_name(subdev, path, "inst", ver, &inst);
276 	if (ret)
277 		goto done;
278 
279 	ret = nvkm_firmware_load_name(subdev, path, "data", ver, &data);
280 	if (ret)
281 		goto done;
282 
283 	ret = nvkm_firmware_load_name(subdev, path, "sig", ver, &lsfw->sig);
284 	if (ret)
285 		goto done;
286 
287 	lsfw->bootloader_size = ALIGN(desc->code_size, 256);
288 	lsfw->bootloader_imem_offset = desc->start_tag << 8;
289 
290 	lsfw->app_start_offset = lsfw->bootloader_size;
291 	lsfw->app_imem_entry = 0;
292 	lsfw->app_resident_code_offset = 0;
293 	lsfw->app_resident_code_size = ALIGN(inst->size, 256);
294 	lsfw->app_resident_data_offset = lsfw->app_resident_code_size;
295 	lsfw->app_resident_data_size = ALIGN(data->size, 256);
296 	lsfw->app_size = lsfw->app_resident_code_size +
297 			 lsfw->app_resident_data_size;
298 
299 	lsfw->img.size = lsfw->bootloader_size + lsfw->app_size;
300 	if (!(lsfw->img.data = kzalloc(lsfw->img.size, GFP_KERNEL))) {
301 		ret = -ENOMEM;
302 		goto done;
303 	}
304 
305 	memcpy(lsfw->img.data, bldata, lsfw->bootloader_size);
306 	memcpy(lsfw->img.data + lsfw->app_start_offset +
307 	       lsfw->app_resident_code_offset, inst->data, inst->size);
308 	memcpy(lsfw->img.data + lsfw->app_start_offset +
309 	       lsfw->app_resident_data_offset, data->data, data->size);
310 
311 	lsfw->ucode_size = ALIGN(lsfw->app_resident_data_offset, 256) +
312 			   lsfw->bootloader_size;
313 	lsfw->data_size = lsfw->app_size + lsfw->bootloader_size -
314 			  lsfw->ucode_size;
315 
316 done:
317 	if (ret)
318 		nvkm_acr_lsfw_del(lsfw);
319 	nvkm_firmware_put(data);
320 	nvkm_firmware_put(inst);
321 	nvkm_firmware_put(bl);
322 	return ret;
323 }
324 
325 int
nvkm_acr_lsfw_load_bl_sig_net(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 void * inst_data,u32 inst_size,const void * data_data,u32 data_size)326 nvkm_acr_lsfw_load_bl_sig_net(struct nvkm_subdev *subdev,
327 			      struct nvkm_falcon *falcon,
328 			      enum nvkm_acr_lsf_id id,
329 			      const char *path, int ver,
330 			      const struct nvkm_acr_lsf_func *func,
331 			      const void *inst_data, u32 inst_size,
332 			      const void *data_data, u32 data_size)
333 {
334 	struct nvkm_acr *acr = subdev->device->acr;
335 	struct nvkm_acr_lsfw *lsfw;
336 	const struct firmware _inst = { .data = inst_data, .size = inst_size };
337 	const struct firmware _data = { .data = data_data, .size = data_size };
338 	const struct firmware *bl = NULL, *inst = &_inst, *data = &_data;
339 	const struct {
340 	    int bin_magic;
341 	    int bin_version;
342 	    int bin_size;
343 	    int header_offset;
344 	    int header_size;
345 	} *hdr;
346 	u32 *bldata;
347 	int ret;
348 
349 	if (IS_ERR((lsfw = nvkm_acr_lsfw_add(func, acr, falcon, id))))
350 		return PTR_ERR(lsfw);
351 
352 	ret = nvkm_firmware_load_name(subdev, path, "bl", ver, &bl);
353 	if (ret)
354 		goto done;
355 
356 	hdr = (const void *)bl->data;
357 	bldata = (void *)(bl->data + hdr->header_offset);
358 
359 	ret = nvkm_firmware_load_name(subdev, path, "sig", ver, &lsfw->sig);
360 	if (ret)
361 		goto done;
362 
363 	lsfw->bootloader_size = ALIGN(hdr->header_size, 256);
364 	lsfw->bootloader_imem_offset = func->bl_entry;
365 
366 	lsfw->app_start_offset = lsfw->bootloader_size;
367 	lsfw->app_imem_entry = 0;
368 	lsfw->app_resident_code_offset = 0;
369 	lsfw->app_resident_code_size = ALIGN(inst->size, 256);
370 	lsfw->app_resident_data_offset = lsfw->app_resident_code_size;
371 	lsfw->app_resident_data_size = ALIGN(data->size, 256);
372 	lsfw->app_imem_offset = 0;
373 	lsfw->app_dmem_offset = 0;
374 	lsfw->app_size = lsfw->app_resident_code_size + lsfw->app_resident_data_size;
375 
376 	lsfw->img.size = lsfw->bootloader_size + lsfw->app_size;
377 	if (!(lsfw->img.data = kzalloc(lsfw->img.size, GFP_KERNEL))) {
378 		ret = -ENOMEM;
379 		goto done;
380 	}
381 
382 	memcpy(lsfw->img.data, bldata, lsfw->bootloader_size);
383 	memcpy(lsfw->img.data + lsfw->app_start_offset +
384 	       lsfw->app_resident_code_offset, inst->data, inst->size);
385 	memcpy(lsfw->img.data + lsfw->app_start_offset +
386 	       lsfw->app_resident_data_offset, data->data, data->size);
387 
388 	lsfw->ucode_size = ALIGN(lsfw->app_resident_data_offset, 256) +
389 			   lsfw->bootloader_size;
390 	lsfw->data_size = lsfw->app_size + lsfw->bootloader_size -
391 			  lsfw->ucode_size;
392 
393 done:
394 	if (ret)
395 		nvkm_acr_lsfw_del(lsfw);
396 	nvkm_firmware_put(bl);
397 	return ret;
398 }
399