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8#include <linux/device.h>
9#include <linux/slab.h>
10#include <linux/uuid.h>
11#include "../common/sst-dsp.h"
12#include "../common/sst-dsp-priv.h"
13#include "skl.h"
14
15#define DEFAULT_HASH_SHA256_LEN 32
16
17
18#define SKL_EXT_MANIFEST_HEADER_MAGIC 0x31454124
19
20union seg_flags {
21 u32 ul;
22 struct {
23 u32 contents : 1;
24 u32 alloc : 1;
25 u32 load : 1;
26 u32 read_only : 1;
27 u32 code : 1;
28 u32 data : 1;
29 u32 _rsvd0 : 2;
30 u32 type : 4;
31 u32 _rsvd1 : 4;
32 u32 length : 16;
33 } r;
34} __packed;
35
36struct segment_desc {
37 union seg_flags flags;
38 u32 v_base_addr;
39 u32 file_offset;
40};
41
42struct module_type {
43 u32 load_type : 4;
44 u32 auto_start : 1;
45 u32 domain_ll : 1;
46 u32 domain_dp : 1;
47 u32 rsvd : 25;
48} __packed;
49
50struct adsp_module_entry {
51 u32 struct_id;
52 u8 name[8];
53 u8 uuid[16];
54 struct module_type type;
55 u8 hash1[DEFAULT_HASH_SHA256_LEN];
56 u32 entry_point;
57 u16 cfg_offset;
58 u16 cfg_count;
59 u32 affinity_mask;
60 u16 instance_max_count;
61 u16 instance_bss_size;
62 struct segment_desc segments[3];
63} __packed;
64
65struct adsp_fw_hdr {
66 u32 id;
67 u32 len;
68 u8 name[8];
69 u32 preload_page_count;
70 u32 fw_image_flags;
71 u32 feature_mask;
72 u16 major;
73 u16 minor;
74 u16 hotfix;
75 u16 build;
76 u32 num_modules;
77 u32 hw_buf_base;
78 u32 hw_buf_length;
79 u32 load_offset;
80} __packed;
81
82struct skl_ext_manifest_hdr {
83 u32 id;
84 u32 len;
85 u16 version_major;
86 u16 version_minor;
87 u32 entries;
88};
89
90static int skl_get_pvtid_map(struct uuid_module *module, int instance_id)
91{
92 int pvt_id;
93
94 for (pvt_id = 0; pvt_id < module->max_instance; pvt_id++) {
95 if (module->instance_id[pvt_id] == instance_id)
96 return pvt_id;
97 }
98 return -EINVAL;
99}
100
101int skl_get_pvt_instance_id_map(struct skl_dev *skl,
102 int module_id, int instance_id)
103{
104 struct uuid_module *module;
105
106 list_for_each_entry(module, &skl->uuid_list, list) {
107 if (module->id == module_id)
108 return skl_get_pvtid_map(module, instance_id);
109 }
110
111 return -EINVAL;
112}
113EXPORT_SYMBOL_GPL(skl_get_pvt_instance_id_map);
114
115static inline int skl_getid_32(struct uuid_module *module, u64 *val,
116 int word1_mask, int word2_mask)
117{
118 int index, max_inst, pvt_id;
119 u32 mask_val;
120
121 max_inst = module->max_instance;
122 mask_val = (u32)(*val >> word1_mask);
123
124 if (mask_val != 0xffffffff) {
125 index = ffz(mask_val);
126 pvt_id = index + word1_mask + word2_mask;
127 if (pvt_id <= (max_inst - 1)) {
128 *val |= 1ULL << (index + word1_mask);
129 return pvt_id;
130 }
131 }
132
133 return -EINVAL;
134}
135
136static inline int skl_pvtid_128(struct uuid_module *module)
137{
138 int j, i, word1_mask, word2_mask = 0, pvt_id;
139
140 for (j = 0; j < MAX_INSTANCE_BUFF; j++) {
141 word1_mask = 0;
142
143 for (i = 0; i < 2; i++) {
144 pvt_id = skl_getid_32(module, &module->pvt_id[j],
145 word1_mask, word2_mask);
146 if (pvt_id >= 0)
147 return pvt_id;
148
149 word1_mask += 32;
150 if ((word1_mask + word2_mask) >= module->max_instance)
151 return -EINVAL;
152 }
153
154 word2_mask += 64;
155 if (word2_mask >= module->max_instance)
156 return -EINVAL;
157 }
158
159 return -EINVAL;
160}
161
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171
172int skl_get_pvt_id(struct skl_dev *skl, guid_t *uuid_mod, int instance_id)
173{
174 struct uuid_module *module;
175 int pvt_id;
176
177 list_for_each_entry(module, &skl->uuid_list, list) {
178 if (guid_equal(uuid_mod, &module->uuid)) {
179
180 pvt_id = skl_pvtid_128(module);
181 if (pvt_id >= 0) {
182 module->instance_id[pvt_id] = instance_id;
183
184 return pvt_id;
185 }
186 }
187 }
188
189 return -EINVAL;
190}
191EXPORT_SYMBOL_GPL(skl_get_pvt_id);
192
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200
201
202int skl_put_pvt_id(struct skl_dev *skl, guid_t *uuid_mod, int *pvt_id)
203{
204 int i;
205 struct uuid_module *module;
206
207 list_for_each_entry(module, &skl->uuid_list, list) {
208 if (guid_equal(uuid_mod, &module->uuid)) {
209
210 if (*pvt_id != 0)
211 i = (*pvt_id) / 64;
212 else
213 i = 0;
214
215 module->pvt_id[i] &= ~(1 << (*pvt_id));
216 *pvt_id = -1;
217 return 0;
218 }
219 }
220
221 return -EINVAL;
222}
223EXPORT_SYMBOL_GPL(skl_put_pvt_id);
224
225
226
227
228
229int snd_skl_parse_uuids(struct sst_dsp *ctx, const struct firmware *fw,
230 unsigned int offset, int index)
231{
232 struct adsp_fw_hdr *adsp_hdr;
233 struct adsp_module_entry *mod_entry;
234 int i, num_entry, size;
235 const char *buf;
236 struct skl_dev *skl = ctx->thread_context;
237 struct uuid_module *module;
238 struct firmware stripped_fw;
239 unsigned int safe_file;
240 int ret;
241
242
243 stripped_fw.data = fw->data;
244 stripped_fw.size = fw->size;
245
246 skl_dsp_strip_extended_manifest(&stripped_fw);
247
248 buf = stripped_fw.data;
249
250
251 safe_file = sizeof(*adsp_hdr) + offset;
252 if (stripped_fw.size <= safe_file) {
253 dev_err(ctx->dev, "Small fw file size, No space for hdr\n");
254 return -EINVAL;
255 }
256
257 adsp_hdr = (struct adsp_fw_hdr *)(buf + offset);
258
259
260 safe_file += adsp_hdr->len + sizeof(*mod_entry);
261 if (stripped_fw.size <= safe_file) {
262 dev_err(ctx->dev, "Small fw file size, No module entry\n");
263 return -EINVAL;
264 }
265
266 mod_entry = (struct adsp_module_entry *)(buf + offset + adsp_hdr->len);
267
268 num_entry = adsp_hdr->num_modules;
269
270
271 safe_file += num_entry * sizeof(*mod_entry);
272 if (stripped_fw.size <= safe_file) {
273 dev_err(ctx->dev, "Small fw file size, No modules\n");
274 return -EINVAL;
275 }
276
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283
284
285
286 for (i = 0; i < num_entry; i++, mod_entry++) {
287 module = kzalloc(sizeof(*module), GFP_KERNEL);
288 if (!module) {
289 ret = -ENOMEM;
290 goto free_uuid_list;
291 }
292
293 import_guid(&module->uuid, mod_entry->uuid);
294
295 module->id = (i | (index << 12));
296 module->is_loadable = mod_entry->type.load_type;
297 module->max_instance = mod_entry->instance_max_count;
298 size = sizeof(int) * mod_entry->instance_max_count;
299 module->instance_id = devm_kzalloc(ctx->dev, size, GFP_KERNEL);
300 if (!module->instance_id) {
301 ret = -ENOMEM;
302 goto free_uuid_list;
303 }
304
305 list_add_tail(&module->list, &skl->uuid_list);
306
307 dev_dbg(ctx->dev,
308 "Adding uuid :%pUL mod id: %d Loadable: %d\n",
309 &module->uuid, module->id, module->is_loadable);
310 }
311
312 return 0;
313
314free_uuid_list:
315 skl_freeup_uuid_list(skl);
316 return ret;
317}
318
319void skl_freeup_uuid_list(struct skl_dev *skl)
320{
321 struct uuid_module *uuid, *_uuid;
322
323 list_for_each_entry_safe(uuid, _uuid, &skl->uuid_list, list) {
324 list_del(&uuid->list);
325 kfree(uuid);
326 }
327}
328
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332
333
334
335
336int skl_dsp_strip_extended_manifest(struct firmware *fw)
337{
338 struct skl_ext_manifest_hdr *hdr;
339
340
341 if (fw->size < sizeof(hdr)) {
342 pr_err("%s: Firmware file small, no hdr\n", __func__);
343 return -EINVAL;
344 }
345
346 hdr = (struct skl_ext_manifest_hdr *)fw->data;
347
348 if (hdr->id == SKL_EXT_MANIFEST_HEADER_MAGIC) {
349 fw->size -= hdr->len;
350 fw->data += hdr->len;
351 }
352
353 return 0;
354}
355
356int skl_sst_ctx_init(struct device *dev, int irq, const char *fw_name,
357 struct skl_dsp_loader_ops dsp_ops, struct skl_dev **dsp,
358 struct sst_dsp_device *skl_dev)
359{
360 struct skl_dev *skl = *dsp;
361 struct sst_dsp *sst;
362
363 skl->dev = dev;
364 skl_dev->thread_context = skl;
365 INIT_LIST_HEAD(&skl->uuid_list);
366 skl->dsp = skl_dsp_ctx_init(dev, skl_dev, irq);
367 if (!skl->dsp) {
368 dev_err(skl->dev, "%s: no device\n", __func__);
369 return -ENODEV;
370 }
371
372 sst = skl->dsp;
373 sst->fw_name = fw_name;
374 sst->dsp_ops = dsp_ops;
375 init_waitqueue_head(&skl->mod_load_wait);
376 INIT_LIST_HEAD(&sst->module_list);
377
378 skl->is_first_boot = true;
379
380 return 0;
381}
382
383int skl_prepare_lib_load(struct skl_dev *skl, struct skl_lib_info *linfo,
384 struct firmware *stripped_fw,
385 unsigned int hdr_offset, int index)
386{
387 int ret;
388 struct sst_dsp *dsp = skl->dsp;
389
390 if (linfo->fw == NULL) {
391 ret = request_firmware(&linfo->fw, linfo->name,
392 skl->dev);
393 if (ret < 0) {
394 dev_err(skl->dev, "Request lib %s failed:%d\n",
395 linfo->name, ret);
396 return ret;
397 }
398 }
399
400 if (skl->is_first_boot) {
401 ret = snd_skl_parse_uuids(dsp, linfo->fw, hdr_offset, index);
402 if (ret < 0)
403 return ret;
404 }
405
406 stripped_fw->data = linfo->fw->data;
407 stripped_fw->size = linfo->fw->size;
408 skl_dsp_strip_extended_manifest(stripped_fw);
409
410 return 0;
411}
412
413void skl_release_library(struct skl_lib_info *linfo, int lib_count)
414{
415 int i;
416
417
418 for (i = 1; i < lib_count; i++) {
419 if (linfo[i].fw) {
420 release_firmware(linfo[i].fw);
421 linfo[i].fw = NULL;
422 }
423 }
424}
425
