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" },
198 { 208, "APQ8074-AA" },
199 { 209, "APQ8074-AB" },
200 { 210, "APQ8074PRO" },
201 { 211, "MSM8274-AA" },
202 { 212, "MSM8274-AB" },
203 { 213, "MSM8274PRO" },
204 { 214, "MSM8674-AA" },
205 { 215, "MSM8674-AB" },
206 { 216, "MSM8674PRO" },
207 { 217, "MSM8974-AA" },
208 { 218, "MSM8974-AB" },
221 { 305, "MSM8996SG" },
222 { 310, "MSM8996AU" },
223 { 311, "APQ8096AU" },
224 { 312, "APQ8096SG" },
233 static const char *socinfo_machine(struct device *dev, unsigned int id)
237 for (idx = 0; idx < ARRAY_SIZE(soc_id); idx++) {
238 if (soc_id[idx].id == id)
239 return soc_id[idx].name;
245 #ifdef CONFIG_DEBUG_FS
247 #define QCOM_OPEN(name, _func) \
248 static int qcom_open_##name(struct inode *inode, struct file *file) \
250 return single_open(file, _func, inode->i_private); \
253 static const struct file_operations qcom_ ##name## _ops = { \
254 .open = qcom_open_##name, \
256 .llseek = seq_lseek, \
257 .release = single_release, \
260 #define DEBUGFS_ADD(info, name) \
261 debugfs_create_file(__stringify(name), 0400, \
262 qcom_socinfo->dbg_root, \
263 info, &qcom_ ##name## _ops)
266 static int qcom_show_build_id(struct seq_file *seq, void *p)
268 struct socinfo *socinfo = seq->private;
270 seq_printf(seq, "%s\n", socinfo->build_id);
275 static int qcom_show_pmic_model(struct seq_file *seq, void *p)
277 struct socinfo *socinfo = seq->private;
278 int model = SOCINFO_MINOR(le32_to_cpu(socinfo->pmic_model));
283 if (model < ARRAY_SIZE(pmic_models) && pmic_models[model])
284 seq_printf(seq, "%s\n", pmic_models[model]);
286 seq_printf(seq, "unknown (%d)\n", model);
291 static int qcom_show_pmic_die_revision(struct seq_file *seq, void *p)
293 struct socinfo *socinfo = seq->private;
295 seq_printf(seq, "%u.%u\n",
296 SOCINFO_MAJOR(le32_to_cpu(socinfo->pmic_die_rev)),
297 SOCINFO_MINOR(le32_to_cpu(socinfo->pmic_die_rev)));
302 static int qcom_show_chip_id(struct seq_file *seq, void *p)
304 struct socinfo *socinfo = seq->private;
306 seq_printf(seq, "%s\n", socinfo->chip_id);
311 QCOM_OPEN(build_id, qcom_show_build_id);
312 QCOM_OPEN(pmic_model, qcom_show_pmic_model);
313 QCOM_OPEN(pmic_die_rev, qcom_show_pmic_die_revision);
314 QCOM_OPEN(chip_id, qcom_show_chip_id);
316 #define DEFINE_IMAGE_OPS(type) \
317 static int show_image_##type(struct seq_file *seq, void *p) \
319 struct smem_image_version *image_version = seq->private; \
320 seq_puts(seq, image_version->type); \
321 seq_putc(seq, '\n'); \
324 static int open_image_##type(struct inode *inode, struct file *file) \
326 return single_open(file, show_image_##type, inode->i_private); \
329 static const struct file_operations qcom_image_##type##_ops = { \
330 .open = open_image_##type, \
332 .llseek = seq_lseek, \
333 .release = single_release, \
336 DEFINE_IMAGE_OPS(name);
337 DEFINE_IMAGE_OPS(variant);
338 DEFINE_IMAGE_OPS(oem);
340 static void socinfo_debugfs_init(struct qcom_socinfo *qcom_socinfo,
341 struct socinfo *info)
343 struct smem_image_version *versions;
344 struct dentry *dentry;
348 qcom_socinfo->dbg_root = debugfs_create_dir("qcom_socinfo", NULL);
350 qcom_socinfo->info.fmt = __le32_to_cpu(info->fmt);
352 debugfs_create_x32("info_fmt", 0400, qcom_socinfo->dbg_root,
353 &qcom_socinfo->info.fmt);
355 switch (qcom_socinfo->info.fmt) {
356 case SOCINFO_VERSION(0, 15):
357 qcom_socinfo->info.nmodem_supported = __le32_to_cpu(info->nmodem_supported);
359 debugfs_create_u32("nmodem_supported", 0400, qcom_socinfo->dbg_root,
360 &qcom_socinfo->info.nmodem_supported);
362 case SOCINFO_VERSION(0, 14):
363 qcom_socinfo->info.num_clusters = __le32_to_cpu(info->num_clusters);
364 qcom_socinfo->info.ncluster_array_offset = __le32_to_cpu(info->ncluster_array_offset);
365 qcom_socinfo->info.num_defective_parts = __le32_to_cpu(info->num_defective_parts);
366 qcom_socinfo->info.ndefective_parts_array_offset = __le32_to_cpu(info->ndefective_parts_array_offset);
368 debugfs_create_u32("num_clusters", 0400, qcom_socinfo->dbg_root,
369 &qcom_socinfo->info.num_clusters);
370 debugfs_create_u32("ncluster_array_offset", 0400, qcom_socinfo->dbg_root,
371 &qcom_socinfo->info.ncluster_array_offset);
372 debugfs_create_u32("num_defective_parts", 0400, qcom_socinfo->dbg_root,
373 &qcom_socinfo->info.num_defective_parts);
374 debugfs_create_u32("ndefective_parts_array_offset", 0400, qcom_socinfo->dbg_root,
375 &qcom_socinfo->info.ndefective_parts_array_offset);
377 case SOCINFO_VERSION(0, 13):
378 qcom_socinfo->info.nproduct_id = __le32_to_cpu(info->nproduct_id);
380 debugfs_create_u32("nproduct_id", 0400, qcom_socinfo->dbg_root,
381 &qcom_socinfo->info.nproduct_id);
382 DEBUGFS_ADD(info, chip_id);
384 case SOCINFO_VERSION(0, 12):
385 qcom_socinfo->info.chip_family =
386 __le32_to_cpu(info->chip_family);
387 qcom_socinfo->info.raw_device_family =
388 __le32_to_cpu(info->raw_device_family);
389 qcom_socinfo->info.raw_device_num =
390 __le32_to_cpu(info->raw_device_num);
392 debugfs_create_x32("chip_family", 0400, qcom_socinfo->dbg_root,
393 &qcom_socinfo->info.chip_family);
394 debugfs_create_x32("raw_device_family", 0400,
395 qcom_socinfo->dbg_root,
396 &qcom_socinfo->info.raw_device_family);
397 debugfs_create_x32("raw_device_number", 0400,
398 qcom_socinfo->dbg_root,
399 &qcom_socinfo->info.raw_device_num);
401 case SOCINFO_VERSION(0, 11):
402 case SOCINFO_VERSION(0, 10):
403 case SOCINFO_VERSION(0, 9):
404 qcom_socinfo->info.foundry_id = __le32_to_cpu(info->foundry_id);
406 debugfs_create_u32("foundry_id", 0400, qcom_socinfo->dbg_root,
407 &qcom_socinfo->info.foundry_id);
409 case SOCINFO_VERSION(0, 8):
410 case SOCINFO_VERSION(0, 7):
411 DEBUGFS_ADD(info, pmic_model);
412 DEBUGFS_ADD(info, pmic_die_rev);
414 case SOCINFO_VERSION(0, 6):
415 qcom_socinfo->info.hw_plat_subtype =
416 __le32_to_cpu(info->hw_plat_subtype);
418 debugfs_create_u32("hardware_platform_subtype", 0400,
419 qcom_socinfo->dbg_root,
420 &qcom_socinfo->info.hw_plat_subtype);
422 case SOCINFO_VERSION(0, 5):
423 qcom_socinfo->info.accessory_chip =
424 __le32_to_cpu(info->accessory_chip);
426 debugfs_create_u32("accessory_chip", 0400,
427 qcom_socinfo->dbg_root,
428 &qcom_socinfo->info.accessory_chip);
430 case SOCINFO_VERSION(0, 4):
431 qcom_socinfo->info.plat_ver = __le32_to_cpu(info->plat_ver);
433 debugfs_create_u32("platform_version", 0400,
434 qcom_socinfo->dbg_root,
435 &qcom_socinfo->info.plat_ver);
437 case SOCINFO_VERSION(0, 3):
438 qcom_socinfo->info.hw_plat = __le32_to_cpu(info->hw_plat);
440 debugfs_create_u32("hardware_platform", 0400,
441 qcom_socinfo->dbg_root,
442 &qcom_socinfo->info.hw_plat);
444 case SOCINFO_VERSION(0, 2):
445 qcom_socinfo->info.raw_ver = __le32_to_cpu(info->raw_ver);
447 debugfs_create_u32("raw_version", 0400, qcom_socinfo->dbg_root,
448 &qcom_socinfo->info.raw_ver);
450 case SOCINFO_VERSION(0, 1):
451 DEBUGFS_ADD(info, build_id);
455 versions = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_IMAGE_VERSION_TABLE,
458 for (i = 0; i < ARRAY_SIZE(socinfo_image_names); i++) {
459 if (!socinfo_image_names[i])
462 dentry = debugfs_create_dir(socinfo_image_names[i],
463 qcom_socinfo->dbg_root);
464 debugfs_create_file("name", 0400, dentry, &versions[i],
465 &qcom_image_name_ops);
466 debugfs_create_file("variant", 0400, dentry, &versions[i],
467 &qcom_image_variant_ops);
468 debugfs_create_file("oem", 0400, dentry, &versions[i],
469 &qcom_image_oem_ops);
473 static void socinfo_debugfs_exit(struct qcom_socinfo *qcom_socinfo)
475 debugfs_remove_recursive(qcom_socinfo->dbg_root);
478 static void socinfo_debugfs_init(struct qcom_socinfo *qcom_socinfo,
479 struct socinfo *info)
482 static void socinfo_debugfs_exit(struct qcom_socinfo *qcom_socinfo) { }
483 #endif /* CONFIG_DEBUG_FS */
485 static int qcom_socinfo_probe(struct platform_device *pdev)
487 struct qcom_socinfo *qs;
488 struct socinfo *info;
491 info = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_HW_SW_BUILD_ID,
494 dev_err(&pdev->dev, "Couldn't find socinfo\n");
495 return PTR_ERR(info);
498 qs = devm_kzalloc(&pdev->dev, sizeof(*qs), GFP_KERNEL);
502 qs->attr.family = "Snapdragon";
503 qs->attr.machine = socinfo_machine(&pdev->dev,
504 le32_to_cpu(info->id));
505 qs->attr.soc_id = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%u",
506 le32_to_cpu(info->id));
507 qs->attr.revision = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%u.%u",
508 SOCINFO_MAJOR(le32_to_cpu(info->ver)),
509 SOCINFO_MINOR(le32_to_cpu(info->ver)));
510 if (offsetof(struct socinfo, serial_num) <= item_size)
511 qs->attr.serial_number = devm_kasprintf(&pdev->dev, GFP_KERNEL,
513 le32_to_cpu(info->serial_num));
515 qs->soc_dev = soc_device_register(&qs->attr);
516 if (IS_ERR(qs->soc_dev))
517 return PTR_ERR(qs->soc_dev);
519 socinfo_debugfs_init(qs, info);
521 /* Feed the soc specific unique data into entropy pool */
522 add_device_randomness(info, item_size);
524 platform_set_drvdata(pdev, qs);
529 static int qcom_socinfo_remove(struct platform_device *pdev)
531 struct qcom_socinfo *qs = platform_get_drvdata(pdev);
533 soc_device_unregister(qs->soc_dev);
535 socinfo_debugfs_exit(qs);
540 static struct platform_driver qcom_socinfo_driver = {
541 .probe = qcom_socinfo_probe,
542 .remove = qcom_socinfo_remove,
544 .name = "qcom-socinfo",
548 module_platform_driver(qcom_socinfo_driver);
550 MODULE_DESCRIPTION("Qualcomm SoCinfo driver");
551 MODULE_LICENSE("GPL v2");
552 MODULE_ALIAS("platform:qcom-socinfo");