1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2009-2017, The Linux Foundation. All rights reserved.
4 * Copyright (c) 2017-2019, Linaro Ltd.
7 #include <linux/debugfs.h>
9 #include <linux/module.h>
10 #include <linux/platform_device.h>
11 #include <linux/random.h>
12 #include <linux/slab.h>
13 #include <linux/soc/qcom/smem.h>
14 #include <linux/string.h>
15 #include <linux/sys_soc.h>
16 #include <linux/types.h>
19 * SoC version type with major number in the upper 16 bits and minor
20 * number in the lower 16 bits.
22 #define SOCINFO_MAJOR(ver) (((ver) >> 16) & 0xffff)
23 #define SOCINFO_MINOR(ver) ((ver) & 0xffff)
24 #define SOCINFO_VERSION(maj, min) ((((maj) & 0xffff) << 16)|((min) & 0xffff))
26 #define SMEM_SOCINFO_BUILD_ID_LENGTH 32
27 #define SMEM_SOCINFO_CHIP_ID_LENGTH 32
30 * SMEM item id, used to acquire handles to respective
33 #define SMEM_HW_SW_BUILD_ID 137
35 #ifdef CONFIG_DEBUG_FS
36 #define SMEM_IMAGE_VERSION_BLOCKS_COUNT 32
37 #define SMEM_IMAGE_VERSION_SIZE 4096
38 #define SMEM_IMAGE_VERSION_NAME_SIZE 75
39 #define SMEM_IMAGE_VERSION_VARIANT_SIZE 20
40 #define SMEM_IMAGE_VERSION_OEM_SIZE 32
43 * SMEM Image table indices
45 #define SMEM_IMAGE_TABLE_BOOT_INDEX 0
46 #define SMEM_IMAGE_TABLE_TZ_INDEX 1
47 #define SMEM_IMAGE_TABLE_RPM_INDEX 3
48 #define SMEM_IMAGE_TABLE_APPS_INDEX 10
49 #define SMEM_IMAGE_TABLE_MPSS_INDEX 11
50 #define SMEM_IMAGE_TABLE_ADSP_INDEX 12
51 #define SMEM_IMAGE_TABLE_CNSS_INDEX 13
52 #define SMEM_IMAGE_TABLE_VIDEO_INDEX 14
53 #define SMEM_IMAGE_VERSION_TABLE 469
56 * SMEM Image table names
58 static const char *const socinfo_image_names[] = {
59 [SMEM_IMAGE_TABLE_ADSP_INDEX] = "adsp",
60 [SMEM_IMAGE_TABLE_APPS_INDEX] = "apps",
61 [SMEM_IMAGE_TABLE_BOOT_INDEX] = "boot",
62 [SMEM_IMAGE_TABLE_CNSS_INDEX] = "cnss",
63 [SMEM_IMAGE_TABLE_MPSS_INDEX] = "mpss",
64 [SMEM_IMAGE_TABLE_RPM_INDEX] = "rpm",
65 [SMEM_IMAGE_TABLE_TZ_INDEX] = "tz",
66 [SMEM_IMAGE_TABLE_VIDEO_INDEX] = "video",
69 static const char *const pmic_models[] = {
70 [0] = "Unknown PMIC model",
87 #endif /* CONFIG_DEBUG_FS */
89 /* Socinfo SMEM item structure */
94 char build_id[SMEM_SOCINFO_BUILD_ID_LENGTH];
103 __le32 accessory_chip;
105 __le32 hw_plat_subtype;
111 __le32 pmic_die_rev_1;
113 __le32 pmic_die_rev_2;
120 __le32 pmic_array_offset;
123 __le32 raw_device_family;
124 __le32 raw_device_num;
127 char chip_id[SMEM_SOCINFO_CHIP_ID_LENGTH];
130 __le32 ncluster_array_offset;
131 __le32 num_defective_parts;
132 __le32 ndefective_parts_array_offset;
134 __le32 nmodem_supported;
137 #ifdef CONFIG_DEBUG_FS
138 struct socinfo_params {
139 u32 raw_device_family;
151 u32 ncluster_array_offset;
152 u32 num_defective_parts;
153 u32 ndefective_parts_array_offset;
154 u32 nmodem_supported;
157 struct smem_image_version {
158 char name[SMEM_IMAGE_VERSION_NAME_SIZE];
159 char variant[SMEM_IMAGE_VERSION_VARIANT_SIZE];
161 char oem[SMEM_IMAGE_VERSION_OEM_SIZE];
163 #endif /* CONFIG_DEBUG_FS */
165 struct qcom_socinfo {
166 struct soc_device *soc_dev;
167 struct soc_device_attribute attr;
168 #ifdef CONFIG_DEBUG_FS
169 struct dentry *dbg_root;
170 struct socinfo_params info;
171 #endif /* CONFIG_DEBUG_FS */
179 static const struct soc_id soc_id[] = {
187 { 138, "MSM8960AB" },
188 { 139, "APQ8060AB" },
189 { 140, "MSM8260AB" },
190 { 141, "MSM8660AB" },
195 { 194, "MSM8974PRO" },
197 { 208, "APQ8074-AA" },
198 { 209, "APQ8074-AB" },
199 { 210, "APQ8074PRO" },
200 { 211, "MSM8274-AA" },
201 { 212, "MSM8274-AB" },
202 { 213, "MSM8274PRO" },
203 { 214, "MSM8674-AA" },
204 { 215, "MSM8674-AB" },
205 { 216, "MSM8674PRO" },
206 { 217, "MSM8974-AA" },
207 { 218, "MSM8974-AB" },
218 { 305, "MSM8996SG" },
219 { 310, "MSM8996AU" },
220 { 311, "APQ8096AU" },
221 { 312, "APQ8096SG" },
228 static const char *socinfo_machine(struct device *dev, unsigned int id)
232 for (idx = 0; idx < ARRAY_SIZE(soc_id); idx++) {
233 if (soc_id[idx].id == id)
234 return soc_id[idx].name;
240 #ifdef CONFIG_DEBUG_FS
242 #define QCOM_OPEN(name, _func) \
243 static int qcom_open_##name(struct inode *inode, struct file *file) \
245 return single_open(file, _func, inode->i_private); \
248 static const struct file_operations qcom_ ##name## _ops = { \
249 .open = qcom_open_##name, \
251 .llseek = seq_lseek, \
252 .release = single_release, \
255 #define DEBUGFS_ADD(info, name) \
256 debugfs_create_file(__stringify(name), 0400, \
257 qcom_socinfo->dbg_root, \
258 info, &qcom_ ##name## _ops)
261 static int qcom_show_build_id(struct seq_file *seq, void *p)
263 struct socinfo *socinfo = seq->private;
265 seq_printf(seq, "%s\n", socinfo->build_id);
270 static int qcom_show_pmic_model(struct seq_file *seq, void *p)
272 struct socinfo *socinfo = seq->private;
273 int model = SOCINFO_MINOR(le32_to_cpu(socinfo->pmic_model));
278 if (model <= ARRAY_SIZE(pmic_models) && pmic_models[model])
279 seq_printf(seq, "%s\n", pmic_models[model]);
281 seq_printf(seq, "unknown (%d)\n", model);
286 static int qcom_show_pmic_die_revision(struct seq_file *seq, void *p)
288 struct socinfo *socinfo = seq->private;
290 seq_printf(seq, "%u.%u\n",
291 SOCINFO_MAJOR(le32_to_cpu(socinfo->pmic_die_rev)),
292 SOCINFO_MINOR(le32_to_cpu(socinfo->pmic_die_rev)));
297 static int qcom_show_chip_id(struct seq_file *seq, void *p)
299 struct socinfo *socinfo = seq->private;
301 seq_printf(seq, "%s\n", socinfo->chip_id);
306 QCOM_OPEN(build_id, qcom_show_build_id);
307 QCOM_OPEN(pmic_model, qcom_show_pmic_model);
308 QCOM_OPEN(pmic_die_rev, qcom_show_pmic_die_revision);
309 QCOM_OPEN(chip_id, qcom_show_chip_id);
311 #define DEFINE_IMAGE_OPS(type) \
312 static int show_image_##type(struct seq_file *seq, void *p) \
314 struct smem_image_version *image_version = seq->private; \
315 seq_puts(seq, image_version->type); \
316 seq_putc(seq, '\n'); \
319 static int open_image_##type(struct inode *inode, struct file *file) \
321 return single_open(file, show_image_##type, inode->i_private); \
324 static const struct file_operations qcom_image_##type##_ops = { \
325 .open = open_image_##type, \
327 .llseek = seq_lseek, \
328 .release = single_release, \
331 DEFINE_IMAGE_OPS(name);
332 DEFINE_IMAGE_OPS(variant);
333 DEFINE_IMAGE_OPS(oem);
335 static void socinfo_debugfs_init(struct qcom_socinfo *qcom_socinfo,
336 struct socinfo *info)
338 struct smem_image_version *versions;
339 struct dentry *dentry;
343 qcom_socinfo->dbg_root = debugfs_create_dir("qcom_socinfo", NULL);
345 qcom_socinfo->info.fmt = __le32_to_cpu(info->fmt);
347 debugfs_create_x32("info_fmt", 0400, qcom_socinfo->dbg_root,
348 &qcom_socinfo->info.fmt);
350 switch (qcom_socinfo->info.fmt) {
351 case SOCINFO_VERSION(0, 15):
352 qcom_socinfo->info.nmodem_supported = __le32_to_cpu(info->nmodem_supported);
354 debugfs_create_u32("nmodem_supported", 0400, qcom_socinfo->dbg_root,
355 &qcom_socinfo->info.nmodem_supported);
357 case SOCINFO_VERSION(0, 14):
358 qcom_socinfo->info.num_clusters = __le32_to_cpu(info->num_clusters);
359 qcom_socinfo->info.ncluster_array_offset = __le32_to_cpu(info->ncluster_array_offset);
360 qcom_socinfo->info.num_defective_parts = __le32_to_cpu(info->num_defective_parts);
361 qcom_socinfo->info.ndefective_parts_array_offset = __le32_to_cpu(info->ndefective_parts_array_offset);
363 debugfs_create_u32("num_clusters", 0400, qcom_socinfo->dbg_root,
364 &qcom_socinfo->info.num_clusters);
365 debugfs_create_u32("ncluster_array_offset", 0400, qcom_socinfo->dbg_root,
366 &qcom_socinfo->info.ncluster_array_offset);
367 debugfs_create_u32("num_defective_parts", 0400, qcom_socinfo->dbg_root,
368 &qcom_socinfo->info.num_defective_parts);
369 debugfs_create_u32("ndefective_parts_array_offset", 0400, qcom_socinfo->dbg_root,
370 &qcom_socinfo->info.ndefective_parts_array_offset);
372 case SOCINFO_VERSION(0, 13):
373 qcom_socinfo->info.nproduct_id = __le32_to_cpu(info->nproduct_id);
375 debugfs_create_u32("nproduct_id", 0400, qcom_socinfo->dbg_root,
376 &qcom_socinfo->info.nproduct_id);
377 DEBUGFS_ADD(info, chip_id);
379 case SOCINFO_VERSION(0, 12):
380 qcom_socinfo->info.chip_family =
381 __le32_to_cpu(info->chip_family);
382 qcom_socinfo->info.raw_device_family =
383 __le32_to_cpu(info->raw_device_family);
384 qcom_socinfo->info.raw_device_num =
385 __le32_to_cpu(info->raw_device_num);
387 debugfs_create_x32("chip_family", 0400, qcom_socinfo->dbg_root,
388 &qcom_socinfo->info.chip_family);
389 debugfs_create_x32("raw_device_family", 0400,
390 qcom_socinfo->dbg_root,
391 &qcom_socinfo->info.raw_device_family);
392 debugfs_create_x32("raw_device_number", 0400,
393 qcom_socinfo->dbg_root,
394 &qcom_socinfo->info.raw_device_num);
396 case SOCINFO_VERSION(0, 11):
397 case SOCINFO_VERSION(0, 10):
398 case SOCINFO_VERSION(0, 9):
399 qcom_socinfo->info.foundry_id = __le32_to_cpu(info->foundry_id);
401 debugfs_create_u32("foundry_id", 0400, qcom_socinfo->dbg_root,
402 &qcom_socinfo->info.foundry_id);
404 case SOCINFO_VERSION(0, 8):
405 case SOCINFO_VERSION(0, 7):
406 DEBUGFS_ADD(info, pmic_model);
407 DEBUGFS_ADD(info, pmic_die_rev);
409 case SOCINFO_VERSION(0, 6):
410 qcom_socinfo->info.hw_plat_subtype =
411 __le32_to_cpu(info->hw_plat_subtype);
413 debugfs_create_u32("hardware_platform_subtype", 0400,
414 qcom_socinfo->dbg_root,
415 &qcom_socinfo->info.hw_plat_subtype);
417 case SOCINFO_VERSION(0, 5):
418 qcom_socinfo->info.accessory_chip =
419 __le32_to_cpu(info->accessory_chip);
421 debugfs_create_u32("accessory_chip", 0400,
422 qcom_socinfo->dbg_root,
423 &qcom_socinfo->info.accessory_chip);
425 case SOCINFO_VERSION(0, 4):
426 qcom_socinfo->info.plat_ver = __le32_to_cpu(info->plat_ver);
428 debugfs_create_u32("platform_version", 0400,
429 qcom_socinfo->dbg_root,
430 &qcom_socinfo->info.plat_ver);
432 case SOCINFO_VERSION(0, 3):
433 qcom_socinfo->info.hw_plat = __le32_to_cpu(info->hw_plat);
435 debugfs_create_u32("hardware_platform", 0400,
436 qcom_socinfo->dbg_root,
437 &qcom_socinfo->info.hw_plat);
439 case SOCINFO_VERSION(0, 2):
440 qcom_socinfo->info.raw_ver = __le32_to_cpu(info->raw_ver);
442 debugfs_create_u32("raw_version", 0400, qcom_socinfo->dbg_root,
443 &qcom_socinfo->info.raw_ver);
445 case SOCINFO_VERSION(0, 1):
446 DEBUGFS_ADD(info, build_id);
450 versions = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_IMAGE_VERSION_TABLE,
453 for (i = 0; i < ARRAY_SIZE(socinfo_image_names); i++) {
454 if (!socinfo_image_names[i])
457 dentry = debugfs_create_dir(socinfo_image_names[i],
458 qcom_socinfo->dbg_root);
459 debugfs_create_file("name", 0400, dentry, &versions[i],
460 &qcom_image_name_ops);
461 debugfs_create_file("variant", 0400, dentry, &versions[i],
462 &qcom_image_variant_ops);
463 debugfs_create_file("oem", 0400, dentry, &versions[i],
464 &qcom_image_oem_ops);
468 static void socinfo_debugfs_exit(struct qcom_socinfo *qcom_socinfo)
470 debugfs_remove_recursive(qcom_socinfo->dbg_root);
473 static void socinfo_debugfs_init(struct qcom_socinfo *qcom_socinfo,
474 struct socinfo *info)
477 static void socinfo_debugfs_exit(struct qcom_socinfo *qcom_socinfo) { }
478 #endif /* CONFIG_DEBUG_FS */
480 static int qcom_socinfo_probe(struct platform_device *pdev)
482 struct qcom_socinfo *qs;
483 struct socinfo *info;
486 info = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_HW_SW_BUILD_ID,
489 dev_err(&pdev->dev, "Couldn't find socinfo\n");
490 return PTR_ERR(info);
493 qs = devm_kzalloc(&pdev->dev, sizeof(*qs), GFP_KERNEL);
497 qs->attr.family = "Snapdragon";
498 qs->attr.machine = socinfo_machine(&pdev->dev,
499 le32_to_cpu(info->id));
500 qs->attr.soc_id = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%u",
501 le32_to_cpu(info->id));
502 qs->attr.revision = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%u.%u",
503 SOCINFO_MAJOR(le32_to_cpu(info->ver)),
504 SOCINFO_MINOR(le32_to_cpu(info->ver)));
505 if (offsetof(struct socinfo, serial_num) <= item_size)
506 qs->attr.serial_number = devm_kasprintf(&pdev->dev, GFP_KERNEL,
508 le32_to_cpu(info->serial_num));
510 qs->soc_dev = soc_device_register(&qs->attr);
511 if (IS_ERR(qs->soc_dev))
512 return PTR_ERR(qs->soc_dev);
514 socinfo_debugfs_init(qs, info);
516 /* Feed the soc specific unique data into entropy pool */
517 add_device_randomness(info, item_size);
519 platform_set_drvdata(pdev, qs->soc_dev);
524 static int qcom_socinfo_remove(struct platform_device *pdev)
526 struct qcom_socinfo *qs = platform_get_drvdata(pdev);
528 soc_device_unregister(qs->soc_dev);
530 socinfo_debugfs_exit(qs);
535 static struct platform_driver qcom_socinfo_driver = {
536 .probe = qcom_socinfo_probe,
537 .remove = qcom_socinfo_remove,
539 .name = "qcom-socinfo",
543 module_platform_driver(qcom_socinfo_driver);
545 MODULE_DESCRIPTION("Qualcomm SoCinfo driver");
546 MODULE_LICENSE("GPL v2");
547 MODULE_ALIAS("platform:qcom-socinfo");