drivers/soc/qcom/socinfo.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2009-2017, The Linux Foundation. All rights reserved.
   4  * Copyright (c) 2017-2019, Linaro Ltd.
   5  */
   6
   7 #include <linux/debugfs.h>
   8 #include <linux/err.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/soc/qcom/socinfo.h>
  15 #include <linux/string.h>
  16 #include <linux/stringify.h>
  17 #include <linux/sys_soc.h>
  18 #include <linux/types.h>
  19
  20 #include <asm/unaligned.h>
  21
  22 #include <dt-bindings/arm/qcom,ids.h>
  23
  24 /*
  25  * SoC version type with major number in the upper 16 bits and minor
  26  * number in the lower 16 bits.
  27  */
  28 #define SOCINFO_MAJOR(ver) (((ver) >> 16) & 0xffff)
  29 #define SOCINFO_MINOR(ver) ((ver) & 0xffff)
  30 #define SOCINFO_VERSION(maj, min)  ((((maj) & 0xffff) << 16)|((min) & 0xffff))
  31
  32 /* Helper macros to create soc_id table */
  33 #define qcom_board_id(id) QCOM_ID_ ## id, __stringify(id)
  34 #define qcom_board_id_named(id, name) QCOM_ID_ ## id, (name)
  35
  36 #ifdef CONFIG_DEBUG_FS
  37 #define SMEM_IMAGE_VERSION_BLOCKS_COUNT        32
  38 #define SMEM_IMAGE_VERSION_SIZE                4096
  39 #define SMEM_IMAGE_VERSION_NAME_SIZE           75
  40 #define SMEM_IMAGE_VERSION_VARIANT_SIZE        20
  41 #define SMEM_IMAGE_VERSION_OEM_SIZE            32
  42
  43 /*
  44  * SMEM Image table indices
  45  */
  46 #define SMEM_IMAGE_TABLE_BOOT_INDEX     0
  47 #define SMEM_IMAGE_TABLE_TZ_INDEX       1
  48 #define SMEM_IMAGE_TABLE_RPM_INDEX      3
  49 #define SMEM_IMAGE_TABLE_APPS_INDEX     10
  50 #define SMEM_IMAGE_TABLE_MPSS_INDEX     11
  51 #define SMEM_IMAGE_TABLE_ADSP_INDEX     12
  52 #define SMEM_IMAGE_TABLE_CNSS_INDEX     13
  53 #define SMEM_IMAGE_TABLE_VIDEO_INDEX    14
  54 #define SMEM_IMAGE_TABLE_DSPS_INDEX     15
  55 #define SMEM_IMAGE_TABLE_CDSP_INDEX     16
  56 #define SMEM_IMAGE_TABLE_CDSP1_INDEX    19
  57 #define SMEM_IMAGE_TABLE_GPDSP_INDEX    20
  58 #define SMEM_IMAGE_TABLE_GPDSP1_INDEX   21
  59 #define SMEM_IMAGE_VERSION_TABLE       469
  60
  61 /*
  62  * SMEM Image table names
  63  */
  64 static const char *const socinfo_image_names[] = {
  65         [SMEM_IMAGE_TABLE_ADSP_INDEX] = "adsp",
  66         [SMEM_IMAGE_TABLE_APPS_INDEX] = "apps",
  67         [SMEM_IMAGE_TABLE_BOOT_INDEX] = "boot",
  68         [SMEM_IMAGE_TABLE_CNSS_INDEX] = "cnss",
  69         [SMEM_IMAGE_TABLE_MPSS_INDEX] = "mpss",
  70         [SMEM_IMAGE_TABLE_RPM_INDEX] = "rpm",
  71         [SMEM_IMAGE_TABLE_TZ_INDEX] = "tz",
  72         [SMEM_IMAGE_TABLE_VIDEO_INDEX] = "video",
  73         [SMEM_IMAGE_TABLE_DSPS_INDEX] = "dsps",
  74         [SMEM_IMAGE_TABLE_CDSP_INDEX] = "cdsp",
  75         [SMEM_IMAGE_TABLE_CDSP1_INDEX] = "cdsp1",
  76         [SMEM_IMAGE_TABLE_GPDSP_INDEX] = "gpdsp",
  77         [SMEM_IMAGE_TABLE_GPDSP1_INDEX] = "gpdsp1",
  78 };
  79
  80 static const char *const pmic_models[] = {
  81         [0]  = "Unknown PMIC model",
  82         [1]  = "PM8941",
  83         [2]  = "PM8841",
  84         [3]  = "PM8019",
  85         [4]  = "PM8226",
  86         [5]  = "PM8110",
  87         [6]  = "PMA8084",
  88         [7]  = "PMI8962",
  89         [8]  = "PMD9635",
  90         [9]  = "PM8994",
  91         [10] = "PMI8994",
  92         [11] = "PM8916",
  93         [12] = "PM8004",
  94         [13] = "PM8909/PM8058",
  95         [14] = "PM8028",
  96         [15] = "PM8901",
  97         [16] = "PM8950/PM8027",
  98         [17] = "PMI8950/ISL9519",
  99         [18] = "PMK8001/PM8921",
 100         [19] = "PMI8996/PM8018",
 101         [20] = "PM8998/PM8015",
 102         [21] = "PMI8998/PM8014",
 103         [22] = "PM8821",
 104         [23] = "PM8038",
 105         [24] = "PM8005/PM8922",
 106         [25] = "PM8917/PM8937",
 107         [26] = "PM660L",
 108         [27] = "PM660",
 109         [30] = "PM8150",
 110         [31] = "PM8150L",
 111         [32] = "PM8150B",
 112         [33] = "PMK8002",
 113         [36] = "PM8009",
 114         [37] = "PMI632",
 115         [38] = "PM8150C",
 116         [40] = "PM6150",
 117         [41] = "SMB2351",
 118         [44] = "PM8008",
 119         [45] = "PM6125",
 120         [46] = "PM7250B",
 121         [47] = "PMK8350",
 122         [48] = "PM8350",
 123         [49] = "PM8350C",
 124         [50] = "PM8350B",
 125         [51] = "PMR735A",
 126         [52] = "PMR735B",
 127         [55] = "PM4125",
 128         [58] = "PM8450",
 129         [65] = "PM8010",
 130         [69] = "PM8550VS",
 131         [70] = "PM8550VE",
 132         [71] = "PM8550B",
 133         [72] = "PMR735D",
 134         [73] = "PM8550",
 135         [74] = "PMK8550",
 136 };
 137
 138 struct socinfo_params {
 139         u32 raw_device_family;
 140         u32 hw_plat_subtype;
 141         u32 accessory_chip;
 142         u32 raw_device_num;
 143         u32 chip_family;
 144         u32 foundry_id;
 145         u32 plat_ver;
 146         u32 raw_ver;
 147         u32 hw_plat;
 148         u32 fmt;
 149         u32 nproduct_id;
 150         u32 num_clusters;
 151         u32 ncluster_array_offset;
 152         u32 num_subset_parts;
 153         u32 nsubset_parts_array_offset;
 154         u32 nmodem_supported;
 155         u32 feature_code;
 156         u32 pcode;
 157         u32 oem_variant;
 158         u32 num_func_clusters;
 159         u32 boot_cluster;
 160         u32 boot_core;
 161 };
 162
 163 struct smem_image_version {
 164         char name[SMEM_IMAGE_VERSION_NAME_SIZE];
 165         char variant[SMEM_IMAGE_VERSION_VARIANT_SIZE];
 166         char pad;
 167         char oem[SMEM_IMAGE_VERSION_OEM_SIZE];
 168 };
 169 #endif /* CONFIG_DEBUG_FS */
 170
 171 struct qcom_socinfo {
 172         struct soc_device *soc_dev;
 173         struct soc_device_attribute attr;
 174 #ifdef CONFIG_DEBUG_FS
 175         struct dentry *dbg_root;
 176         struct socinfo_params info;
 177 #endif /* CONFIG_DEBUG_FS */
 178 };
 179
 180 struct soc_id {
 181         unsigned int id;
 182         const char *name;
 183 };
 184
 185 static const struct soc_id soc_id[] = {
 186         { qcom_board_id(MSM8260) },
 187         { qcom_board_id(MSM8660) },
 188         { qcom_board_id(APQ8060) },
 189         { qcom_board_id(MSM8960) },
 190         { qcom_board_id(APQ8064) },
 191         { qcom_board_id(MSM8930) },
 192         { qcom_board_id(MSM8630) },
 193         { qcom_board_id(MSM8230) },
 194         { qcom_board_id(APQ8030) },
 195         { qcom_board_id(MSM8627) },
 196         { qcom_board_id(MSM8227) },
 197         { qcom_board_id(MSM8660A) },
 198         { qcom_board_id(MSM8260A) },
 199         { qcom_board_id(APQ8060A) },
 200         { qcom_board_id(MSM8974) },
 201         { qcom_board_id(MSM8225) },
 202         { qcom_board_id(MSM8625) },
 203         { qcom_board_id(MPQ8064) },
 204         { qcom_board_id(MSM8960AB) },
 205         { qcom_board_id(APQ8060AB) },
 206         { qcom_board_id(MSM8260AB) },
 207         { qcom_board_id(MSM8660AB) },
 208         { qcom_board_id(MSM8930AA) },
 209         { qcom_board_id(MSM8630AA) },
 210         { qcom_board_id(MSM8230AA) },
 211         { qcom_board_id(MSM8626) },
 212         { qcom_board_id(MSM8610) },
 213         { qcom_board_id(APQ8064AB) },
 214         { qcom_board_id(MSM8930AB) },
 215         { qcom_board_id(MSM8630AB) },
 216         { qcom_board_id(MSM8230AB) },
 217         { qcom_board_id(APQ8030AB) },
 218         { qcom_board_id(MSM8226) },
 219         { qcom_board_id(MSM8526) },
 220         { qcom_board_id(APQ8030AA) },
 221         { qcom_board_id(MSM8110) },
 222         { qcom_board_id(MSM8210) },
 223         { qcom_board_id(MSM8810) },
 224         { qcom_board_id(MSM8212) },
 225         { qcom_board_id(MSM8612) },
 226         { qcom_board_id(MSM8112) },
 227         { qcom_board_id(MSM8125) },
 228         { qcom_board_id(MSM8225Q) },
 229         { qcom_board_id(MSM8625Q) },
 230         { qcom_board_id(MSM8125Q) },
 231         { qcom_board_id(APQ8064AA) },
 232         { qcom_board_id(APQ8084) },
 233         { qcom_board_id(MSM8130) },
 234         { qcom_board_id(MSM8130AA) },
 235         { qcom_board_id(MSM8130AB) },
 236         { qcom_board_id(MSM8627AA) },
 237         { qcom_board_id(MSM8227AA) },
 238         { qcom_board_id(APQ8074) },
 239         { qcom_board_id(MSM8274) },
 240         { qcom_board_id(MSM8674) },
 241         { qcom_board_id(MDM9635) },
 242         { qcom_board_id_named(MSM8974PRO_AC, "MSM8974PRO-AC") },
 243         { qcom_board_id(MSM8126) },
 244         { qcom_board_id(APQ8026) },
 245         { qcom_board_id(MSM8926) },
 246         { qcom_board_id(IPQ8062) },
 247         { qcom_board_id(IPQ8064) },
 248         { qcom_board_id(IPQ8066) },
 249         { qcom_board_id(IPQ8068) },
 250         { qcom_board_id(MSM8326) },
 251         { qcom_board_id(MSM8916) },
 252         { qcom_board_id(MSM8994) },
 253         { qcom_board_id_named(APQ8074PRO_AA, "APQ8074PRO-AA") },
 254         { qcom_board_id_named(APQ8074PRO_AB, "APQ8074PRO-AB") },
 255         { qcom_board_id_named(APQ8074PRO_AC, "APQ8074PRO-AC") },
 256         { qcom_board_id_named(MSM8274PRO_AA, "MSM8274PRO-AA") },
 257         { qcom_board_id_named(MSM8274PRO_AB, "MSM8274PRO-AB") },
 258         { qcom_board_id_named(MSM8274PRO_AC, "MSM8274PRO-AC") },
 259         { qcom_board_id_named(MSM8674PRO_AA, "MSM8674PRO-AA") },
 260         { qcom_board_id_named(MSM8674PRO_AB, "MSM8674PRO-AB") },
 261         { qcom_board_id_named(MSM8674PRO_AC, "MSM8674PRO-AC") },
 262         { qcom_board_id_named(MSM8974PRO_AA, "MSM8974PRO-AA") },
 263         { qcom_board_id_named(MSM8974PRO_AB, "MSM8974PRO-AB") },
 264         { qcom_board_id(APQ8028) },
 265         { qcom_board_id(MSM8128) },
 266         { qcom_board_id(MSM8228) },
 267         { qcom_board_id(MSM8528) },
 268         { qcom_board_id(MSM8628) },
 269         { qcom_board_id(MSM8928) },
 270         { qcom_board_id(MSM8510) },
 271         { qcom_board_id(MSM8512) },
 272         { qcom_board_id(MSM8936) },
 273         { qcom_board_id(MDM9640) },
 274         { qcom_board_id(MSM8939) },
 275         { qcom_board_id(APQ8036) },
 276         { qcom_board_id(APQ8039) },
 277         { qcom_board_id(MSM8236) },
 278         { qcom_board_id(MSM8636) },
 279         { qcom_board_id(MSM8909) },
 280         { qcom_board_id(MSM8996) },
 281         { qcom_board_id(APQ8016) },
 282         { qcom_board_id(MSM8216) },
 283         { qcom_board_id(MSM8116) },
 284         { qcom_board_id(MSM8616) },
 285         { qcom_board_id(MSM8992) },
 286         { qcom_board_id(APQ8092) },
 287         { qcom_board_id(APQ8094) },
 288         { qcom_board_id(MSM8209) },
 289         { qcom_board_id(MSM8208) },
 290         { qcom_board_id(MDM9209) },
 291         { qcom_board_id(MDM9309) },
 292         { qcom_board_id(MDM9609) },
 293         { qcom_board_id(MSM8239) },
 294         { qcom_board_id(MSM8952) },
 295         { qcom_board_id(APQ8009) },
 296         { qcom_board_id(MSM8956) },
 297         { qcom_board_id(MSM8929) },
 298         { qcom_board_id(MSM8629) },
 299         { qcom_board_id(MSM8229) },
 300         { qcom_board_id(APQ8029) },
 301         { qcom_board_id(APQ8056) },
 302         { qcom_board_id(MSM8609) },
 303         { qcom_board_id(APQ8076) },
 304         { qcom_board_id(MSM8976) },
 305         { qcom_board_id(IPQ8065) },
 306         { qcom_board_id(IPQ8069) },
 307         { qcom_board_id(MDM9650) },
 308         { qcom_board_id(MDM9655) },
 309         { qcom_board_id(MDM9250) },
 310         { qcom_board_id(MDM9255) },
 311         { qcom_board_id(MDM9350) },
 312         { qcom_board_id(APQ8052) },
 313         { qcom_board_id(MDM9607) },
 314         { qcom_board_id(APQ8096) },
 315         { qcom_board_id(MSM8998) },
 316         { qcom_board_id(MSM8953) },
 317         { qcom_board_id(MSM8937) },
 318         { qcom_board_id(APQ8037) },
 319         { qcom_board_id(MDM8207) },
 320         { qcom_board_id(MDM9207) },
 321         { qcom_board_id(MDM9307) },
 322         { qcom_board_id(MDM9628) },
 323         { qcom_board_id(MSM8909W) },
 324         { qcom_board_id(APQ8009W) },
 325         { qcom_board_id(MSM8996L) },
 326         { qcom_board_id(MSM8917) },
 327         { qcom_board_id(APQ8053) },
 328         { qcom_board_id(MSM8996SG) },
 329         { qcom_board_id(APQ8017) },
 330         { qcom_board_id(MSM8217) },
 331         { qcom_board_id(MSM8617) },
 332         { qcom_board_id(MSM8996AU) },
 333         { qcom_board_id(APQ8096AU) },
 334         { qcom_board_id(APQ8096SG) },
 335         { qcom_board_id(MSM8940) },
 336         { qcom_board_id(SDX201) },
 337         { qcom_board_id(SDM660) },
 338         { qcom_board_id(SDM630) },
 339         { qcom_board_id(APQ8098) },
 340         { qcom_board_id(MSM8920) },
 341         { qcom_board_id(SDM845) },
 342         { qcom_board_id(MDM9206) },
 343         { qcom_board_id(IPQ8074) },
 344         { qcom_board_id(SDA660) },
 345         { qcom_board_id(SDM658) },
 346         { qcom_board_id(SDA658) },
 347         { qcom_board_id(SDA630) },
 348         { qcom_board_id(MSM8905) },
 349         { qcom_board_id(SDX202) },
 350         { qcom_board_id(SDM450) },
 351         { qcom_board_id(SM8150) },
 352         { qcom_board_id(SDA845) },
 353         { qcom_board_id(IPQ8072) },
 354         { qcom_board_id(IPQ8076) },
 355         { qcom_board_id(IPQ8078) },
 356         { qcom_board_id(SDM636) },
 357         { qcom_board_id(SDA636) },
 358         { qcom_board_id(SDM632) },
 359         { qcom_board_id(SDA632) },
 360         { qcom_board_id(SDA450) },
 361         { qcom_board_id(SDM439) },
 362         { qcom_board_id(SDM429) },
 363         { qcom_board_id(SM8250) },
 364         { qcom_board_id(SA8155) },
 365         { qcom_board_id(SDA439) },
 366         { qcom_board_id(SDA429) },
 367         { qcom_board_id(SM7150) },
 368         { qcom_board_id(SM7150P) },
 369         { qcom_board_id(IPQ8070) },
 370         { qcom_board_id(IPQ8071) },
 371         { qcom_board_id(QM215) },
 372         { qcom_board_id(IPQ8072A) },
 373         { qcom_board_id(IPQ8074A) },
 374         { qcom_board_id(IPQ8076A) },
 375         { qcom_board_id(IPQ8078A) },
 376         { qcom_board_id(SM6125) },
 377         { qcom_board_id(IPQ8070A) },
 378         { qcom_board_id(IPQ8071A) },
 379         { qcom_board_id(IPQ8172) },
 380         { qcom_board_id(IPQ8173) },
 381         { qcom_board_id(IPQ8174) },
 382         { qcom_board_id(IPQ6018) },
 383         { qcom_board_id(IPQ6028) },
 384         { qcom_board_id(SDM429W) },
 385         { qcom_board_id(SM4250) },
 386         { qcom_board_id(IPQ6000) },
 387         { qcom_board_id(IPQ6010) },
 388         { qcom_board_id(SC7180) },
 389         { qcom_board_id(SM6350) },
 390         { qcom_board_id(QCM2150) },
 391         { qcom_board_id(SDA429W) },
 392         { qcom_board_id(SM8350) },
 393         { qcom_board_id(QCM2290) },
 394         { qcom_board_id(SM7125) },
 395         { qcom_board_id(SM6115) },
 396         { qcom_board_id(IPQ5010) },
 397         { qcom_board_id(IPQ5018) },
 398         { qcom_board_id(IPQ5028) },
 399         { qcom_board_id(SC8280XP) },
 400         { qcom_board_id(IPQ6005) },
 401         { qcom_board_id(QRB5165) },
 402         { qcom_board_id(SM8450) },
 403         { qcom_board_id(SM7225) },
 404         { qcom_board_id(SA8295P) },
 405         { qcom_board_id(SA8540P) },
 406         { qcom_board_id(QCM4290) },
 407         { qcom_board_id(QCS4290) },
 408         { qcom_board_id_named(SM8450_2, "SM8450") },
 409         { qcom_board_id_named(SM8450_3, "SM8450") },
 410         { qcom_board_id(SC7280) },
 411         { qcom_board_id(SC7180P) },
 412         { qcom_board_id(QCM6490) },
 413         { qcom_board_id(IPQ5000) },
 414         { qcom_board_id(IPQ0509) },
 415         { qcom_board_id(IPQ0518) },
 416         { qcom_board_id(SM6375) },
 417         { qcom_board_id(IPQ9514) },
 418         { qcom_board_id(IPQ9550) },
 419         { qcom_board_id(IPQ9554) },
 420         { qcom_board_id(IPQ9570) },
 421         { qcom_board_id(IPQ9574) },
 422         { qcom_board_id(SM8550) },
 423         { qcom_board_id(IPQ5016) },
 424         { qcom_board_id(IPQ9510) },
 425         { qcom_board_id(QRB4210) },
 426         { qcom_board_id(QRB2210) },
 427         { qcom_board_id(SM8475) },
 428         { qcom_board_id(SM8475P) },
 429         { qcom_board_id(SA8775P) },
 430         { qcom_board_id(QRU1000) },
 431         { qcom_board_id(SM8475_2) },
 432         { qcom_board_id(QDU1000) },
 433         { qcom_board_id(SM8650) },
 434         { qcom_board_id(SM4450) },
 435         { qcom_board_id(QDU1010) },
 436         { qcom_board_id(QRU1032) },
 437         { qcom_board_id(QRU1052) },
 438         { qcom_board_id(QRU1062) },
 439         { qcom_board_id(IPQ5332) },
 440         { qcom_board_id(IPQ5322) },
 441         { qcom_board_id(IPQ5312) },
 442         { qcom_board_id(IPQ5302) },
 443         { qcom_board_id(QCS8550) },
 444         { qcom_board_id(QCM8550) },
 445         { qcom_board_id(IPQ5300) },
 446 };
 447
 448 static const char *socinfo_machine(struct device *dev, unsigned int id)
 449 {
 450         int idx;
 451
 452         for (idx = 0; idx < ARRAY_SIZE(soc_id); idx++) {
 453                 if (soc_id[idx].id == id)
 454                         return soc_id[idx].name;
 455         }
 456
 457         return NULL;
 458 }
 459
 460 #ifdef CONFIG_DEBUG_FS
 461
 462 #define QCOM_OPEN(name, _func)                                          \
 463 static int qcom_open_##name(struct inode *inode, struct file *file)     \
 464 {                                                                       \
 465         return single_open(file, _func, inode->i_private);              \
 466 }                                                                       \
 467                                                                         \
 468 static const struct file_operations qcom_ ##name## _ops = {             \
 469         .open = qcom_open_##name,                                       \
 470         .read = seq_read,                                               \
 471         .llseek = seq_lseek,                                            \
 472         .release = single_release,                                      \
 473 }
 474
 475 #define DEBUGFS_ADD(info, name)                                         \
 476         debugfs_create_file(__stringify(name), 0444,                    \
 477                             qcom_socinfo->dbg_root,                     \
 478                             info, &qcom_ ##name## _ops)
 479
 480
 481 static int qcom_show_build_id(struct seq_file *seq, void *p)
 482 {
 483         struct socinfo *socinfo = seq->private;
 484
 485         seq_printf(seq, "%s\n", socinfo->build_id);
 486
 487         return 0;
 488 }
 489
 490 static int qcom_show_pmic_model(struct seq_file *seq, void *p)
 491 {
 492         struct socinfo *socinfo = seq->private;
 493         int model = SOCINFO_MINOR(le32_to_cpu(socinfo->pmic_model));
 494
 495         if (model < 0)
 496                 return -EINVAL;
 497
 498         if (model < ARRAY_SIZE(pmic_models) && pmic_models[model])
 499                 seq_printf(seq, "%s\n", pmic_models[model]);
 500         else
 501                 seq_printf(seq, "unknown (%d)\n", model);
 502
 503         return 0;
 504 }
 505
 506 static int qcom_show_pmic_model_array(struct seq_file *seq, void *p)
 507 {
 508         struct socinfo *socinfo = seq->private;
 509         unsigned int num_pmics = le32_to_cpu(socinfo->num_pmics);
 510         unsigned int pmic_array_offset = le32_to_cpu(socinfo->pmic_array_offset);
 511         int i;
 512         void *ptr = socinfo;
 513
 514         ptr += pmic_array_offset;
 515
 516         /* No need for bounds checking, it happened at socinfo_debugfs_init */
 517         for (i = 0; i < num_pmics; i++) {
 518                 unsigned int model = SOCINFO_MINOR(get_unaligned_le32(ptr + 2 * i * sizeof(u32)));
 519                 unsigned int die_rev = get_unaligned_le32(ptr + (2 * i + 1) * sizeof(u32));
 520
 521                 if (model < ARRAY_SIZE(pmic_models) && pmic_models[model])
 522                         seq_printf(seq, "%s %u.%u\n", pmic_models[model],
 523                                    SOCINFO_MAJOR(die_rev),
 524                                    SOCINFO_MINOR(die_rev));
 525                 else
 526                         seq_printf(seq, "unknown (%d)\n", model);
 527         }
 528
 529         return 0;
 530 }
 531
 532 static int qcom_show_pmic_die_revision(struct seq_file *seq, void *p)
 533 {
 534         struct socinfo *socinfo = seq->private;
 535
 536         seq_printf(seq, "%u.%u\n",
 537                    SOCINFO_MAJOR(le32_to_cpu(socinfo->pmic_die_rev)),
 538                    SOCINFO_MINOR(le32_to_cpu(socinfo->pmic_die_rev)));
 539
 540         return 0;
 541 }
 542
 543 static int qcom_show_chip_id(struct seq_file *seq, void *p)
 544 {
 545         struct socinfo *socinfo = seq->private;
 546
 547         seq_printf(seq, "%s\n", socinfo->chip_id);
 548
 549         return 0;
 550 }
 551
 552 QCOM_OPEN(build_id, qcom_show_build_id);
 553 QCOM_OPEN(pmic_model, qcom_show_pmic_model);
 554 QCOM_OPEN(pmic_model_array, qcom_show_pmic_model_array);
 555 QCOM_OPEN(pmic_die_rev, qcom_show_pmic_die_revision);
 556 QCOM_OPEN(chip_id, qcom_show_chip_id);
 557
 558 #define DEFINE_IMAGE_OPS(type)                                  \
 559 static int show_image_##type(struct seq_file *seq, void *p)               \
 560 {                                                                 \
 561         struct smem_image_version *image_version = seq->private;  \
 562         if (image_version->type[0] != '\0')                       \
 563                 seq_printf(seq, "%s\n", image_version->type);     \
 564         return 0;                                                 \
 565 }                                                                 \
 566 static int open_image_##type(struct inode *inode, struct file *file)      \
 567 {                                                                         \
 568         return single_open(file, show_image_##type, inode->i_private); \
 569 }                                                                         \
 570                                                                           \
 571 static const struct file_operations qcom_image_##type##_ops = {   \
 572         .open = open_image_##type,                                        \
 573         .read = seq_read,                                                 \
 574         .llseek = seq_lseek,                                              \
 575         .release = single_release,                                        \
 576 }
 577
 578 DEFINE_IMAGE_OPS(name);
 579 DEFINE_IMAGE_OPS(variant);
 580 DEFINE_IMAGE_OPS(oem);
 581
 582 static void socinfo_debugfs_init(struct qcom_socinfo *qcom_socinfo,
 583                                  struct socinfo *info, size_t info_size)
 584 {
 585         struct smem_image_version *versions;
 586         struct dentry *dentry;
 587         size_t size;
 588         int i;
 589         unsigned int num_pmics;
 590         unsigned int pmic_array_offset;
 591
 592         qcom_socinfo->dbg_root = debugfs_create_dir("qcom_socinfo", NULL);
 593
 594         qcom_socinfo->info.fmt = __le32_to_cpu(info->fmt);
 595
 596         debugfs_create_x32("info_fmt", 0444, qcom_socinfo->dbg_root,
 597                            &qcom_socinfo->info.fmt);
 598
 599         switch (qcom_socinfo->info.fmt) {
 600         case SOCINFO_VERSION(0, 19):
 601                 qcom_socinfo->info.num_func_clusters = __le32_to_cpu(info->num_func_clusters);
 602                 qcom_socinfo->info.boot_cluster = __le32_to_cpu(info->boot_cluster);
 603                 qcom_socinfo->info.boot_core = __le32_to_cpu(info->boot_core);
 604
 605                 debugfs_create_u32("num_func_clusters", 0444, qcom_socinfo->dbg_root,
 606                                    &qcom_socinfo->info.num_func_clusters);
 607                 debugfs_create_u32("boot_cluster", 0444, qcom_socinfo->dbg_root,
 608                                    &qcom_socinfo->info.boot_cluster);
 609                 debugfs_create_u32("boot_core", 0444, qcom_socinfo->dbg_root,
 610                                    &qcom_socinfo->info.boot_core);
 611                 fallthrough;
 612         case SOCINFO_VERSION(0, 18):
 613         case SOCINFO_VERSION(0, 17):
 614                 qcom_socinfo->info.oem_variant = __le32_to_cpu(info->oem_variant);
 615                 debugfs_create_u32("oem_variant", 0444, qcom_socinfo->dbg_root,
 616                                    &qcom_socinfo->info.oem_variant);
 617                 fallthrough;
 618         case SOCINFO_VERSION(0, 16):
 619                 qcom_socinfo->info.feature_code = __le32_to_cpu(info->feature_code);
 620                 qcom_socinfo->info.pcode = __le32_to_cpu(info->pcode);
 621
 622                 debugfs_create_u32("feature_code", 0444, qcom_socinfo->dbg_root,
 623                                    &qcom_socinfo->info.feature_code);
 624                 debugfs_create_u32("pcode", 0444, qcom_socinfo->dbg_root,
 625                                    &qcom_socinfo->info.pcode);
 626                 fallthrough;
 627         case SOCINFO_VERSION(0, 15):
 628                 qcom_socinfo->info.nmodem_supported = __le32_to_cpu(info->nmodem_supported);
 629
 630                 debugfs_create_u32("nmodem_supported", 0444, qcom_socinfo->dbg_root,
 631                                    &qcom_socinfo->info.nmodem_supported);
 632                 fallthrough;
 633         case SOCINFO_VERSION(0, 14):
 634                 qcom_socinfo->info.num_clusters = __le32_to_cpu(info->num_clusters);
 635                 qcom_socinfo->info.ncluster_array_offset = __le32_to_cpu(info->ncluster_array_offset);
 636                 qcom_socinfo->info.num_subset_parts = __le32_to_cpu(info->num_subset_parts);
 637                 qcom_socinfo->info.nsubset_parts_array_offset =
 638                         __le32_to_cpu(info->nsubset_parts_array_offset);
 639
 640                 debugfs_create_u32("num_clusters", 0444, qcom_socinfo->dbg_root,
 641                                    &qcom_socinfo->info.num_clusters);
 642                 debugfs_create_u32("ncluster_array_offset", 0444, qcom_socinfo->dbg_root,
 643                                    &qcom_socinfo->info.ncluster_array_offset);
 644                 debugfs_create_u32("num_subset_parts", 0444, qcom_socinfo->dbg_root,
 645                                    &qcom_socinfo->info.num_subset_parts);
 646                 debugfs_create_u32("nsubset_parts_array_offset", 0444, qcom_socinfo->dbg_root,
 647                                    &qcom_socinfo->info.nsubset_parts_array_offset);
 648                 fallthrough;
 649         case SOCINFO_VERSION(0, 13):
 650                 qcom_socinfo->info.nproduct_id = __le32_to_cpu(info->nproduct_id);
 651
 652                 debugfs_create_u32("nproduct_id", 0444, qcom_socinfo->dbg_root,
 653                                    &qcom_socinfo->info.nproduct_id);
 654                 DEBUGFS_ADD(info, chip_id);
 655                 fallthrough;
 656         case SOCINFO_VERSION(0, 12):
 657                 qcom_socinfo->info.chip_family =
 658                         __le32_to_cpu(info->chip_family);
 659                 qcom_socinfo->info.raw_device_family =
 660                         __le32_to_cpu(info->raw_device_family);
 661                 qcom_socinfo->info.raw_device_num =
 662                         __le32_to_cpu(info->raw_device_num);
 663
 664                 debugfs_create_x32("chip_family", 0444, qcom_socinfo->dbg_root,
 665                                    &qcom_socinfo->info.chip_family);
 666                 debugfs_create_x32("raw_device_family", 0444,
 667                                    qcom_socinfo->dbg_root,
 668                                    &qcom_socinfo->info.raw_device_family);
 669                 debugfs_create_x32("raw_device_number", 0444,
 670                                    qcom_socinfo->dbg_root,
 671                                    &qcom_socinfo->info.raw_device_num);
 672                 fallthrough;
 673         case SOCINFO_VERSION(0, 11):
 674                 num_pmics = le32_to_cpu(info->num_pmics);
 675                 pmic_array_offset = le32_to_cpu(info->pmic_array_offset);
 676                 if (pmic_array_offset + 2 * num_pmics * sizeof(u32) <= info_size)
 677                         DEBUGFS_ADD(info, pmic_model_array);
 678                 fallthrough;
 679         case SOCINFO_VERSION(0, 10):
 680         case SOCINFO_VERSION(0, 9):
 681                 qcom_socinfo->info.foundry_id = __le32_to_cpu(info->foundry_id);
 682
 683                 debugfs_create_u32("foundry_id", 0444, qcom_socinfo->dbg_root,
 684                                    &qcom_socinfo->info.foundry_id);
 685                 fallthrough;
 686         case SOCINFO_VERSION(0, 8):
 687         case SOCINFO_VERSION(0, 7):
 688                 DEBUGFS_ADD(info, pmic_model);
 689                 DEBUGFS_ADD(info, pmic_die_rev);
 690                 fallthrough;
 691         case SOCINFO_VERSION(0, 6):
 692                 qcom_socinfo->info.hw_plat_subtype =
 693                         __le32_to_cpu(info->hw_plat_subtype);
 694
 695                 debugfs_create_u32("hardware_platform_subtype", 0444,
 696                                    qcom_socinfo->dbg_root,
 697                                    &qcom_socinfo->info.hw_plat_subtype);
 698                 fallthrough;
 699         case SOCINFO_VERSION(0, 5):
 700                 qcom_socinfo->info.accessory_chip =
 701                         __le32_to_cpu(info->accessory_chip);
 702
 703                 debugfs_create_u32("accessory_chip", 0444,
 704                                    qcom_socinfo->dbg_root,
 705                                    &qcom_socinfo->info.accessory_chip);
 706                 fallthrough;
 707         case SOCINFO_VERSION(0, 4):
 708                 qcom_socinfo->info.plat_ver = __le32_to_cpu(info->plat_ver);
 709
 710                 debugfs_create_u32("platform_version", 0444,
 711                                    qcom_socinfo->dbg_root,
 712                                    &qcom_socinfo->info.plat_ver);
 713                 fallthrough;
 714         case SOCINFO_VERSION(0, 3):
 715                 qcom_socinfo->info.hw_plat = __le32_to_cpu(info->hw_plat);
 716
 717                 debugfs_create_u32("hardware_platform", 0444,
 718                                    qcom_socinfo->dbg_root,
 719                                    &qcom_socinfo->info.hw_plat);
 720                 fallthrough;
 721         case SOCINFO_VERSION(0, 2):
 722                 qcom_socinfo->info.raw_ver  = __le32_to_cpu(info->raw_ver);
 723
 724                 debugfs_create_u32("raw_version", 0444, qcom_socinfo->dbg_root,
 725                                    &qcom_socinfo->info.raw_ver);
 726                 fallthrough;
 727         case SOCINFO_VERSION(0, 1):
 728                 DEBUGFS_ADD(info, build_id);
 729                 break;
 730         }
 731
 732         versions = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_IMAGE_VERSION_TABLE,
 733                                  &size);
 734
 735         for (i = 0; i < ARRAY_SIZE(socinfo_image_names); i++) {
 736                 if (!socinfo_image_names[i])
 737                         continue;
 738
 739                 dentry = debugfs_create_dir(socinfo_image_names[i],
 740                                             qcom_socinfo->dbg_root);
 741                 debugfs_create_file("name", 0444, dentry, &versions[i],
 742                                     &qcom_image_name_ops);
 743                 debugfs_create_file("variant", 0444, dentry, &versions[i],
 744                                     &qcom_image_variant_ops);
 745                 debugfs_create_file("oem", 0444, dentry, &versions[i],
 746                                     &qcom_image_oem_ops);
 747         }
 748 }
 749
 750 static void socinfo_debugfs_exit(struct qcom_socinfo *qcom_socinfo)
 751 {
 752         debugfs_remove_recursive(qcom_socinfo->dbg_root);
 753 }
 754 #else
 755 static void socinfo_debugfs_init(struct qcom_socinfo *qcom_socinfo,
 756                                  struct socinfo *info, size_t info_size)
 757 {
 758 }
 759 static void socinfo_debugfs_exit(struct qcom_socinfo *qcom_socinfo) {  }
 760 #endif /* CONFIG_DEBUG_FS */
 761
 762 static int qcom_socinfo_probe(struct platform_device *pdev)
 763 {
 764         struct qcom_socinfo *qs;
 765         struct socinfo *info;
 766         size_t item_size;
 767
 768         info = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_HW_SW_BUILD_ID,
 769                               &item_size);
 770         if (IS_ERR(info)) {
 771                 dev_err(&pdev->dev, "Couldn't find socinfo\n");
 772                 return PTR_ERR(info);
 773         }
 774
 775         qs = devm_kzalloc(&pdev->dev, sizeof(*qs), GFP_KERNEL);
 776         if (!qs)
 777                 return -ENOMEM;
 778
 779         qs->attr.family = "Snapdragon";
 780         qs->attr.machine = socinfo_machine(&pdev->dev,
 781                                            le32_to_cpu(info->id));
 782         qs->attr.soc_id = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%u",
 783                                          le32_to_cpu(info->id));
 784         qs->attr.revision = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%u.%u",
 785                                            SOCINFO_MAJOR(le32_to_cpu(info->ver)),
 786                                            SOCINFO_MINOR(le32_to_cpu(info->ver)));
 787         if (offsetof(struct socinfo, serial_num) <= item_size)
 788                 qs->attr.serial_number = devm_kasprintf(&pdev->dev, GFP_KERNEL,
 789                                                         "%u",
 790                                                         le32_to_cpu(info->serial_num));
 791
 792         qs->soc_dev = soc_device_register(&qs->attr);
 793         if (IS_ERR(qs->soc_dev))
 794                 return PTR_ERR(qs->soc_dev);
 795
 796         socinfo_debugfs_init(qs, info, item_size);
 797
 798         /* Feed the soc specific unique data into entropy pool */
 799         add_device_randomness(info, item_size);
 800
 801         platform_set_drvdata(pdev, qs);
 802
 803         return 0;
 804 }
 805
 806 static void qcom_socinfo_remove(struct platform_device *pdev)
 807 {
 808         struct qcom_socinfo *qs = platform_get_drvdata(pdev);
 809
 810         soc_device_unregister(qs->soc_dev);
 811
 812         socinfo_debugfs_exit(qs);
 813 }
 814
 815 static struct platform_driver qcom_socinfo_driver = {
 816         .probe = qcom_socinfo_probe,
 817         .remove_new = qcom_socinfo_remove,
 818         .driver  = {
 819                 .name = "qcom-socinfo",
 820         },
 821 };
 822
 823 module_platform_driver(qcom_socinfo_driver);
 824
 825 MODULE_DESCRIPTION("Qualcomm SoCinfo driver");
 826 MODULE_LICENSE("GPL v2");
 827 MODULE_ALIAS("platform:qcom-socinfo");