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 <linux/unaligned.h>
  21
  22 #include <dt-bindings/arm/qcom,ids.h>
  23
  24 /* Helper macros to create soc_id table */
  25 #define qcom_board_id(id) QCOM_ID_ ## id, __stringify(id)
  26 #define qcom_board_id_named(id, name) QCOM_ID_ ## id, (name)
  27
  28 #ifdef CONFIG_DEBUG_FS
  29 #define SMEM_IMAGE_VERSION_BLOCKS_COUNT        32
  30 #define SMEM_IMAGE_VERSION_SIZE                4096
  31 #define SMEM_IMAGE_VERSION_NAME_SIZE           75
  32 #define SMEM_IMAGE_VERSION_VARIANT_SIZE        20
  33 #define SMEM_IMAGE_VERSION_OEM_SIZE            32
  34
  35 /*
  36  * SMEM Image table indices
  37  */
  38 #define SMEM_IMAGE_TABLE_BOOT_INDEX     0
  39 #define SMEM_IMAGE_TABLE_TZ_INDEX       1
  40 #define SMEM_IMAGE_TABLE_RPM_INDEX      3
  41 #define SMEM_IMAGE_TABLE_APPS_INDEX     10
  42 #define SMEM_IMAGE_TABLE_MPSS_INDEX     11
  43 #define SMEM_IMAGE_TABLE_ADSP_INDEX     12
  44 #define SMEM_IMAGE_TABLE_CNSS_INDEX     13
  45 #define SMEM_IMAGE_TABLE_VIDEO_INDEX    14
  46 #define SMEM_IMAGE_TABLE_DSPS_INDEX     15
  47 #define SMEM_IMAGE_TABLE_CDSP_INDEX     16
  48 #define SMEM_IMAGE_TABLE_CDSP1_INDEX    19
  49 #define SMEM_IMAGE_TABLE_GPDSP_INDEX    20
  50 #define SMEM_IMAGE_TABLE_GPDSP1_INDEX   21
  51 #define SMEM_IMAGE_VERSION_TABLE       469
  52
  53 /*
  54  * SMEM Image table names
  55  */
  56 static const char *const socinfo_image_names[] = {
  57         [SMEM_IMAGE_TABLE_ADSP_INDEX] = "adsp",
  58         [SMEM_IMAGE_TABLE_APPS_INDEX] = "apps",
  59         [SMEM_IMAGE_TABLE_BOOT_INDEX] = "boot",
  60         [SMEM_IMAGE_TABLE_CNSS_INDEX] = "cnss",
  61         [SMEM_IMAGE_TABLE_MPSS_INDEX] = "mpss",
  62         [SMEM_IMAGE_TABLE_RPM_INDEX] = "rpm",
  63         [SMEM_IMAGE_TABLE_TZ_INDEX] = "tz",
  64         [SMEM_IMAGE_TABLE_VIDEO_INDEX] = "video",
  65         [SMEM_IMAGE_TABLE_DSPS_INDEX] = "dsps",
  66         [SMEM_IMAGE_TABLE_CDSP_INDEX] = "cdsp",
  67         [SMEM_IMAGE_TABLE_CDSP1_INDEX] = "cdsp1",
  68         [SMEM_IMAGE_TABLE_GPDSP_INDEX] = "gpdsp",
  69         [SMEM_IMAGE_TABLE_GPDSP1_INDEX] = "gpdsp1",
  70 };
  71
  72 static const char *const pmic_models[] = {
  73         [0]  = "Unknown PMIC model",
  74         [1]  = "PM8941",
  75         [2]  = "PM8841",
  76         [3]  = "PM8019",
  77         [4]  = "PM8226",
  78         [5]  = "PM8110",
  79         [6]  = "PMA8084",
  80         [7]  = "PMI8962",
  81         [8]  = "PMD9635",
  82         [9]  = "PM8994",
  83         [10] = "PMI8994",
  84         [11] = "PM8916",
  85         [12] = "PM8004",
  86         [13] = "PM8909/PM8058",
  87         [14] = "PM8028",
  88         [15] = "PM8901",
  89         [16] = "PM8950/PM8027",
  90         [17] = "PMI8950/ISL9519",
  91         [18] = "PMK8001/PM8921",
  92         [19] = "PMI8996/PM8018",
  93         [20] = "PM8998/PM8015",
  94         [21] = "PMI8998/PM8014",
  95         [22] = "PM8821",
  96         [23] = "PM8038",
  97         [24] = "PM8005/PM8922",
  98         [25] = "PM8917/PM8937",
  99         [26] = "PM660L",
 100         [27] = "PM660",
 101         [30] = "PM8150",
 102         [31] = "PM8150L",
 103         [32] = "PM8150B",
 104         [33] = "PMK8002",
 105         [36] = "PM8009",
 106         [37] = "PMI632",
 107         [38] = "PM8150C",
 108         [40] = "PM6150",
 109         [41] = "SMB2351",
 110         [44] = "PM8008",
 111         [45] = "PM6125",
 112         [46] = "PM7250B",
 113         [47] = "PMK8350",
 114         [48] = "PM8350",
 115         [49] = "PM8350C",
 116         [50] = "PM8350B",
 117         [51] = "PMR735A",
 118         [52] = "PMR735B",
 119         [54] = "PM6350",
 120         [55] = "PM4125",
 121         [58] = "PM8450",
 122         [65] = "PM8010",
 123         [69] = "PM8550VS",
 124         [70] = "PM8550VE",
 125         [71] = "PM8550B",
 126         [72] = "PMR735D",
 127         [73] = "PM8550",
 128         [74] = "PMK8550",
 129         [82] = "PMC8380",
 130         [83] = "SMB2360",
 131 };
 132
 133 struct socinfo_params {
 134         u32 raw_device_family;
 135         u32 hw_plat_subtype;
 136         u32 accessory_chip;
 137         u32 raw_device_num;
 138         u32 chip_family;
 139         u32 foundry_id;
 140         u32 plat_ver;
 141         u32 raw_ver;
 142         u32 hw_plat;
 143         u32 fmt;
 144         u32 nproduct_id;
 145         u32 num_clusters;
 146         u32 ncluster_array_offset;
 147         u32 num_subset_parts;
 148         u32 nsubset_parts_array_offset;
 149         u32 nmodem_supported;
 150         u32 feature_code;
 151         u32 pcode;
 152         u32 oem_variant;
 153         u32 num_func_clusters;
 154         u32 boot_cluster;
 155         u32 boot_core;
 156 };
 157
 158 struct smem_image_version {
 159         char name[SMEM_IMAGE_VERSION_NAME_SIZE];
 160         char variant[SMEM_IMAGE_VERSION_VARIANT_SIZE];
 161         char pad;
 162         char oem[SMEM_IMAGE_VERSION_OEM_SIZE];
 163 };
 164 #endif /* CONFIG_DEBUG_FS */
 165
 166 struct qcom_socinfo {
 167         struct soc_device *soc_dev;
 168         struct soc_device_attribute attr;
 169 #ifdef CONFIG_DEBUG_FS
 170         struct dentry *dbg_root;
 171         struct socinfo_params info;
 172 #endif /* CONFIG_DEBUG_FS */
 173 };
 174
 175 struct soc_id {
 176         unsigned int id;
 177         const char *name;
 178 };
 179
 180 static const struct soc_id soc_id[] = {
 181         { qcom_board_id(MSM8260) },
 182         { qcom_board_id(MSM8660) },
 183         { qcom_board_id(APQ8060) },
 184         { qcom_board_id(MSM8960) },
 185         { qcom_board_id(APQ8064) },
 186         { qcom_board_id(MSM8930) },
 187         { qcom_board_id(MSM8630) },
 188         { qcom_board_id(MSM8230) },
 189         { qcom_board_id(APQ8030) },
 190         { qcom_board_id(MSM8627) },
 191         { qcom_board_id(MSM8227) },
 192         { qcom_board_id(MSM8660A) },
 193         { qcom_board_id(MSM8260A) },
 194         { qcom_board_id(APQ8060A) },
 195         { qcom_board_id(MSM8974) },
 196         { qcom_board_id(MSM8225) },
 197         { qcom_board_id(MSM8625) },
 198         { qcom_board_id(MPQ8064) },
 199         { qcom_board_id(MSM8960AB) },
 200         { qcom_board_id(APQ8060AB) },
 201         { qcom_board_id(MSM8260AB) },
 202         { qcom_board_id(MSM8660AB) },
 203         { qcom_board_id(MSM8930AA) },
 204         { qcom_board_id(MSM8630AA) },
 205         { qcom_board_id(MSM8230AA) },
 206         { qcom_board_id(MSM8626) },
 207         { qcom_board_id(MSM8610) },
 208         { qcom_board_id(APQ8064AB) },
 209         { qcom_board_id(MSM8930AB) },
 210         { qcom_board_id(MSM8630AB) },
 211         { qcom_board_id(MSM8230AB) },
 212         { qcom_board_id(APQ8030AB) },
 213         { qcom_board_id(MSM8226) },
 214         { qcom_board_id(MSM8526) },
 215         { qcom_board_id(APQ8030AA) },
 216         { qcom_board_id(MSM8110) },
 217         { qcom_board_id(MSM8210) },
 218         { qcom_board_id(MSM8810) },
 219         { qcom_board_id(MSM8212) },
 220         { qcom_board_id(MSM8612) },
 221         { qcom_board_id(MSM8112) },
 222         { qcom_board_id(MSM8125) },
 223         { qcom_board_id(MSM8225Q) },
 224         { qcom_board_id(MSM8625Q) },
 225         { qcom_board_id(MSM8125Q) },
 226         { qcom_board_id(APQ8064AA) },
 227         { qcom_board_id(APQ8084) },
 228         { qcom_board_id(MSM8130) },
 229         { qcom_board_id(MSM8130AA) },
 230         { qcom_board_id(MSM8130AB) },
 231         { qcom_board_id(MSM8627AA) },
 232         { qcom_board_id(MSM8227AA) },
 233         { qcom_board_id(APQ8074) },
 234         { qcom_board_id(MSM8274) },
 235         { qcom_board_id(MSM8674) },
 236         { qcom_board_id(MDM9635) },
 237         { qcom_board_id_named(MSM8974PRO_AC, "MSM8974PRO-AC") },
 238         { qcom_board_id(MSM8126) },
 239         { qcom_board_id(APQ8026) },
 240         { qcom_board_id(MSM8926) },
 241         { qcom_board_id(IPQ8062) },
 242         { qcom_board_id(IPQ8064) },
 243         { qcom_board_id(IPQ8066) },
 244         { qcom_board_id(IPQ8068) },
 245         { qcom_board_id(MSM8326) },
 246         { qcom_board_id(MSM8916) },
 247         { qcom_board_id(MSM8994) },
 248         { qcom_board_id_named(APQ8074PRO_AA, "APQ8074PRO-AA") },
 249         { qcom_board_id_named(APQ8074PRO_AB, "APQ8074PRO-AB") },
 250         { qcom_board_id_named(APQ8074PRO_AC, "APQ8074PRO-AC") },
 251         { qcom_board_id_named(MSM8274PRO_AA, "MSM8274PRO-AA") },
 252         { qcom_board_id_named(MSM8274PRO_AB, "MSM8274PRO-AB") },
 253         { qcom_board_id_named(MSM8274PRO_AC, "MSM8274PRO-AC") },
 254         { qcom_board_id_named(MSM8674PRO_AA, "MSM8674PRO-AA") },
 255         { qcom_board_id_named(MSM8674PRO_AB, "MSM8674PRO-AB") },
 256         { qcom_board_id_named(MSM8674PRO_AC, "MSM8674PRO-AC") },
 257         { qcom_board_id_named(MSM8974PRO_AA, "MSM8974PRO-AA") },
 258         { qcom_board_id_named(MSM8974PRO_AB, "MSM8974PRO-AB") },
 259         { qcom_board_id(APQ8028) },
 260         { qcom_board_id(MSM8128) },
 261         { qcom_board_id(MSM8228) },
 262         { qcom_board_id(MSM8528) },
 263         { qcom_board_id(MSM8628) },
 264         { qcom_board_id(MSM8928) },
 265         { qcom_board_id(MSM8510) },
 266         { qcom_board_id(MSM8512) },
 267         { qcom_board_id(MSM8936) },
 268         { qcom_board_id(MDM9640) },
 269         { qcom_board_id(MSM8939) },
 270         { qcom_board_id(APQ8036) },
 271         { qcom_board_id(APQ8039) },
 272         { qcom_board_id(MSM8236) },
 273         { qcom_board_id(MSM8636) },
 274         { qcom_board_id(MSM8909) },
 275         { qcom_board_id(MSM8996) },
 276         { qcom_board_id(APQ8016) },
 277         { qcom_board_id(MSM8216) },
 278         { qcom_board_id(MSM8116) },
 279         { qcom_board_id(MSM8616) },
 280         { qcom_board_id(MSM8992) },
 281         { qcom_board_id(APQ8092) },
 282         { qcom_board_id(APQ8094) },
 283         { qcom_board_id(MSM8209) },
 284         { qcom_board_id(MSM8208) },
 285         { qcom_board_id(MDM9209) },
 286         { qcom_board_id(MDM9309) },
 287         { qcom_board_id(MDM9609) },
 288         { qcom_board_id(MSM8239) },
 289         { qcom_board_id(MSM8952) },
 290         { qcom_board_id(APQ8009) },
 291         { qcom_board_id(MSM8956) },
 292         { qcom_board_id(MSM8929) },
 293         { qcom_board_id(MSM8629) },
 294         { qcom_board_id(MSM8229) },
 295         { qcom_board_id(APQ8029) },
 296         { qcom_board_id(APQ8056) },
 297         { qcom_board_id(MSM8609) },
 298         { qcom_board_id(APQ8076) },
 299         { qcom_board_id(MSM8976) },
 300         { qcom_board_id(IPQ8065) },
 301         { qcom_board_id(IPQ8069) },
 302         { qcom_board_id(MDM9650) },
 303         { qcom_board_id(MDM9655) },
 304         { qcom_board_id(MDM9250) },
 305         { qcom_board_id(MDM9255) },
 306         { qcom_board_id(MDM9350) },
 307         { qcom_board_id(APQ8052) },
 308         { qcom_board_id(MDM9607) },
 309         { qcom_board_id(APQ8096) },
 310         { qcom_board_id(MSM8998) },
 311         { qcom_board_id(MSM8953) },
 312         { qcom_board_id(MSM8937) },
 313         { qcom_board_id(APQ8037) },
 314         { qcom_board_id(MDM8207) },
 315         { qcom_board_id(MDM9207) },
 316         { qcom_board_id(MDM9307) },
 317         { qcom_board_id(MDM9628) },
 318         { qcom_board_id(MSM8909W) },
 319         { qcom_board_id(APQ8009W) },
 320         { qcom_board_id(MSM8996L) },
 321         { qcom_board_id(MSM8917) },
 322         { qcom_board_id(APQ8053) },
 323         { qcom_board_id(MSM8996SG) },
 324         { qcom_board_id(APQ8017) },
 325         { qcom_board_id(MSM8217) },
 326         { qcom_board_id(MSM8617) },
 327         { qcom_board_id(MSM8996AU) },
 328         { qcom_board_id(APQ8096AU) },
 329         { qcom_board_id(APQ8096SG) },
 330         { qcom_board_id(MSM8940) },
 331         { qcom_board_id(SDX201) },
 332         { qcom_board_id(SDM660) },
 333         { qcom_board_id(SDM630) },
 334         { qcom_board_id(APQ8098) },
 335         { qcom_board_id(MSM8920) },
 336         { qcom_board_id(SDM845) },
 337         { qcom_board_id(MDM9206) },
 338         { qcom_board_id(IPQ8074) },
 339         { qcom_board_id(SDA660) },
 340         { qcom_board_id(SDM658) },
 341         { qcom_board_id(SDA658) },
 342         { qcom_board_id(SDA630) },
 343         { qcom_board_id(MSM8905) },
 344         { qcom_board_id(SDX202) },
 345         { qcom_board_id(SDM670) },
 346         { qcom_board_id(SDM450) },
 347         { qcom_board_id(SM8150) },
 348         { qcom_board_id(SDA845) },
 349         { qcom_board_id(IPQ8072) },
 350         { qcom_board_id(IPQ8076) },
 351         { qcom_board_id(IPQ8078) },
 352         { qcom_board_id(SDM636) },
 353         { qcom_board_id(SDA636) },
 354         { qcom_board_id(SDM632) },
 355         { qcom_board_id(SDA632) },
 356         { qcom_board_id(SDA450) },
 357         { qcom_board_id(SDM439) },
 358         { qcom_board_id(SDM429) },
 359         { qcom_board_id(SM8250) },
 360         { qcom_board_id(SA8155) },
 361         { qcom_board_id(SDA439) },
 362         { qcom_board_id(SDA429) },
 363         { qcom_board_id(SM7150) },
 364         { qcom_board_id(SM7150P) },
 365         { qcom_board_id(IPQ8070) },
 366         { qcom_board_id(IPQ8071) },
 367         { qcom_board_id(QM215) },
 368         { qcom_board_id(IPQ8072A) },
 369         { qcom_board_id(IPQ8074A) },
 370         { qcom_board_id(IPQ8076A) },
 371         { qcom_board_id(IPQ8078A) },
 372         { qcom_board_id(SM6125) },
 373         { qcom_board_id(IPQ8070A) },
 374         { qcom_board_id(IPQ8071A) },
 375         { qcom_board_id(IPQ8172) },
 376         { qcom_board_id(IPQ8173) },
 377         { qcom_board_id(IPQ8174) },
 378         { qcom_board_id(IPQ6018) },
 379         { qcom_board_id(IPQ6028) },
 380         { qcom_board_id(SDM429W) },
 381         { qcom_board_id(SM4250) },
 382         { qcom_board_id(IPQ6000) },
 383         { qcom_board_id(IPQ6010) },
 384         { qcom_board_id(SC7180) },
 385         { qcom_board_id(SM6350) },
 386         { qcom_board_id(QCM2150) },
 387         { qcom_board_id(SDA429W) },
 388         { qcom_board_id(SM8350) },
 389         { qcom_board_id(QCM2290) },
 390         { qcom_board_id(SM7125) },
 391         { qcom_board_id(SM6115) },
 392         { qcom_board_id(IPQ5010) },
 393         { qcom_board_id(IPQ5018) },
 394         { qcom_board_id(IPQ5028) },
 395         { qcom_board_id(SC8280XP) },
 396         { qcom_board_id(IPQ6005) },
 397         { qcom_board_id(QRB5165) },
 398         { qcom_board_id(SM8450) },
 399         { qcom_board_id(SM7225) },
 400         { qcom_board_id(SA8295P) },
 401         { qcom_board_id(SA8540P) },
 402         { qcom_board_id(QCM4290) },
 403         { qcom_board_id(QCS4290) },
 404         { qcom_board_id(SM7325) },
 405         { qcom_board_id_named(SM8450_2, "SM8450") },
 406         { qcom_board_id_named(SM8450_3, "SM8450") },
 407         { qcom_board_id(SC7280) },
 408         { qcom_board_id(SC7180P) },
 409         { qcom_board_id(QCM6490) },
 410         { qcom_board_id(SM7325P) },
 411         { qcom_board_id(IPQ5000) },
 412         { qcom_board_id(IPQ0509) },
 413         { qcom_board_id(IPQ0518) },
 414         { qcom_board_id(SM6375) },
 415         { qcom_board_id(IPQ9514) },
 416         { qcom_board_id(IPQ9550) },
 417         { qcom_board_id(IPQ9554) },
 418         { qcom_board_id(IPQ9570) },
 419         { qcom_board_id(IPQ9574) },
 420         { qcom_board_id(SM8550) },
 421         { qcom_board_id(IPQ5016) },
 422         { qcom_board_id(IPQ9510) },
 423         { qcom_board_id(QRB4210) },
 424         { qcom_board_id(QRB2210) },
 425         { qcom_board_id(SAR2130P) },
 426         { qcom_board_id(SM8475) },
 427         { qcom_board_id(SM8475P) },
 428         { qcom_board_id(SA8255P) },
 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(X1E80100) },
 434         { qcom_board_id(SM8650) },
 435         { qcom_board_id(SM4450) },
 436         { qcom_board_id(SAR1130P) },
 437         { qcom_board_id(QDU1010) },
 438         { qcom_board_id(QRU1032) },
 439         { qcom_board_id(QRU1052) },
 440         { qcom_board_id(QRU1062) },
 441         { qcom_board_id(IPQ5332) },
 442         { qcom_board_id(IPQ5322) },
 443         { qcom_board_id(IPQ5312) },
 444         { qcom_board_id(IPQ5302) },
 445         { qcom_board_id(QCS8550) },
 446         { qcom_board_id(QCM8550) },
 447         { qcom_board_id(IPQ5300) },
 448         { qcom_board_id(IPQ5321) },
 449         { qcom_board_id(IPQ5424) },
 450         { qcom_board_id(IPQ5404) },
 451         { qcom_board_id(QCS9100) },
 452         { qcom_board_id(QCS8300) },
 453         { qcom_board_id(QCS8275) },
 454         { qcom_board_id(QCS615) },
 455 };
 456
 457 static const char *socinfo_machine(struct device *dev, unsigned int id)
 458 {
 459         int idx;
 460
 461         for (idx = 0; idx < ARRAY_SIZE(soc_id); idx++) {
 462                 if (soc_id[idx].id == id)
 463                         return soc_id[idx].name;
 464         }
 465
 466         return NULL;
 467 }
 468
 469 #ifdef CONFIG_DEBUG_FS
 470
 471 #define QCOM_OPEN(name, _func)                                          \
 472 static int qcom_open_##name(struct inode *inode, struct file *file)     \
 473 {                                                                       \
 474         return single_open(file, _func, inode->i_private);              \
 475 }                                                                       \
 476                                                                         \
 477 static const struct file_operations qcom_ ##name## _ops = {             \
 478         .open = qcom_open_##name,                                       \
 479         .read = seq_read,                                               \
 480         .llseek = seq_lseek,                                            \
 481         .release = single_release,                                      \
 482 }
 483
 484 #define DEBUGFS_ADD(info, name)                                         \
 485         debugfs_create_file(__stringify(name), 0444,                    \
 486                             qcom_socinfo->dbg_root,                     \
 487                             info, &qcom_ ##name## _ops)
 488
 489
 490 static int qcom_show_build_id(struct seq_file *seq, void *p)
 491 {
 492         struct socinfo *socinfo = seq->private;
 493
 494         seq_printf(seq, "%s\n", socinfo->build_id);
 495
 496         return 0;
 497 }
 498
 499 static int qcom_show_pmic_model(struct seq_file *seq, void *p)
 500 {
 501         struct socinfo *socinfo = seq->private;
 502         int model = SOCINFO_MINOR(le32_to_cpu(socinfo->pmic_model));
 503
 504         if (model < 0)
 505                 return -EINVAL;
 506
 507         if (model < ARRAY_SIZE(pmic_models) && pmic_models[model])
 508                 seq_printf(seq, "%s\n", pmic_models[model]);
 509         else
 510                 seq_printf(seq, "unknown (%d)\n", model);
 511
 512         return 0;
 513 }
 514
 515 static int qcom_show_pmic_model_array(struct seq_file *seq, void *p)
 516 {
 517         struct socinfo *socinfo = seq->private;
 518         unsigned int num_pmics = le32_to_cpu(socinfo->num_pmics);
 519         unsigned int pmic_array_offset = le32_to_cpu(socinfo->pmic_array_offset);
 520         int i;
 521         void *ptr = socinfo;
 522
 523         ptr += pmic_array_offset;
 524
 525         /* No need for bounds checking, it happened at socinfo_debugfs_init */
 526         for (i = 0; i < num_pmics; i++) {
 527                 unsigned int model = SOCINFO_MINOR(get_unaligned_le32(ptr + 2 * i * sizeof(u32)));
 528                 unsigned int die_rev = get_unaligned_le32(ptr + (2 * i + 1) * sizeof(u32));
 529
 530                 if (model < ARRAY_SIZE(pmic_models) && pmic_models[model])
 531                         seq_printf(seq, "%s %u.%u\n", pmic_models[model],
 532                                    SOCINFO_MAJOR(die_rev),
 533                                    SOCINFO_MINOR(die_rev));
 534                 else
 535                         seq_printf(seq, "unknown (%d)\n", model);
 536         }
 537
 538         return 0;
 539 }
 540
 541 static int qcom_show_pmic_die_revision(struct seq_file *seq, void *p)
 542 {
 543         struct socinfo *socinfo = seq->private;
 544
 545         seq_printf(seq, "%u.%u\n",
 546                    SOCINFO_MAJOR(le32_to_cpu(socinfo->pmic_die_rev)),
 547                    SOCINFO_MINOR(le32_to_cpu(socinfo->pmic_die_rev)));
 548
 549         return 0;
 550 }
 551
 552 static int qcom_show_chip_id(struct seq_file *seq, void *p)
 553 {
 554         struct socinfo *socinfo = seq->private;
 555
 556         seq_printf(seq, "%s\n", socinfo->chip_id);
 557
 558         return 0;
 559 }
 560
 561 QCOM_OPEN(build_id, qcom_show_build_id);
 562 QCOM_OPEN(pmic_model, qcom_show_pmic_model);
 563 QCOM_OPEN(pmic_model_array, qcom_show_pmic_model_array);
 564 QCOM_OPEN(pmic_die_rev, qcom_show_pmic_die_revision);
 565 QCOM_OPEN(chip_id, qcom_show_chip_id);
 566
 567 #define DEFINE_IMAGE_OPS(type)                                  \
 568 static int show_image_##type(struct seq_file *seq, void *p)               \
 569 {                                                                 \
 570         struct smem_image_version *image_version = seq->private;  \
 571         if (image_version->type[0] != '\0')                       \
 572                 seq_printf(seq, "%s\n", image_version->type);     \
 573         return 0;                                                 \
 574 }                                                                 \
 575 static int open_image_##type(struct inode *inode, struct file *file)      \
 576 {                                                                         \
 577         return single_open(file, show_image_##type, inode->i_private); \
 578 }                                                                         \
 579                                                                           \
 580 static const struct file_operations qcom_image_##type##_ops = {   \
 581         .open = open_image_##type,                                        \
 582         .read = seq_read,                                                 \
 583         .llseek = seq_lseek,                                              \
 584         .release = single_release,                                        \
 585 }
 586
 587 DEFINE_IMAGE_OPS(name);
 588 DEFINE_IMAGE_OPS(variant);
 589 DEFINE_IMAGE_OPS(oem);
 590
 591 static void socinfo_debugfs_init(struct qcom_socinfo *qcom_socinfo,
 592                                  struct socinfo *info, size_t info_size)
 593 {
 594         struct smem_image_version *versions;
 595         struct dentry *dentry;
 596         size_t size;
 597         int i;
 598         unsigned int num_pmics;
 599         unsigned int pmic_array_offset;
 600
 601         qcom_socinfo->dbg_root = debugfs_create_dir("qcom_socinfo", NULL);
 602
 603         qcom_socinfo->info.fmt = __le32_to_cpu(info->fmt);
 604
 605         debugfs_create_x32("info_fmt", 0444, qcom_socinfo->dbg_root,
 606                            &qcom_socinfo->info.fmt);
 607
 608         switch (qcom_socinfo->info.fmt) {
 609         case SOCINFO_VERSION(0, 19):
 610                 qcom_socinfo->info.num_func_clusters = __le32_to_cpu(info->num_func_clusters);
 611                 qcom_socinfo->info.boot_cluster = __le32_to_cpu(info->boot_cluster);
 612                 qcom_socinfo->info.boot_core = __le32_to_cpu(info->boot_core);
 613
 614                 debugfs_create_u32("num_func_clusters", 0444, qcom_socinfo->dbg_root,
 615                                    &qcom_socinfo->info.num_func_clusters);
 616                 debugfs_create_u32("boot_cluster", 0444, qcom_socinfo->dbg_root,
 617                                    &qcom_socinfo->info.boot_cluster);
 618                 debugfs_create_u32("boot_core", 0444, qcom_socinfo->dbg_root,
 619                                    &qcom_socinfo->info.boot_core);
 620                 fallthrough;
 621         case SOCINFO_VERSION(0, 18):
 622         case SOCINFO_VERSION(0, 17):
 623                 qcom_socinfo->info.oem_variant = __le32_to_cpu(info->oem_variant);
 624                 debugfs_create_u32("oem_variant", 0444, qcom_socinfo->dbg_root,
 625                                    &qcom_socinfo->info.oem_variant);
 626                 fallthrough;
 627         case SOCINFO_VERSION(0, 16):
 628                 qcom_socinfo->info.feature_code = __le32_to_cpu(info->feature_code);
 629                 qcom_socinfo->info.pcode = __le32_to_cpu(info->pcode);
 630
 631                 debugfs_create_u32("feature_code", 0444, qcom_socinfo->dbg_root,
 632                                    &qcom_socinfo->info.feature_code);
 633                 debugfs_create_u32("pcode", 0444, qcom_socinfo->dbg_root,
 634                                    &qcom_socinfo->info.pcode);
 635                 fallthrough;
 636         case SOCINFO_VERSION(0, 15):
 637                 qcom_socinfo->info.nmodem_supported = __le32_to_cpu(info->nmodem_supported);
 638
 639                 debugfs_create_u32("nmodem_supported", 0444, qcom_socinfo->dbg_root,
 640                                    &qcom_socinfo->info.nmodem_supported);
 641                 fallthrough;
 642         case SOCINFO_VERSION(0, 14):
 643                 qcom_socinfo->info.num_clusters = __le32_to_cpu(info->num_clusters);
 644                 qcom_socinfo->info.ncluster_array_offset = __le32_to_cpu(info->ncluster_array_offset);
 645                 qcom_socinfo->info.num_subset_parts = __le32_to_cpu(info->num_subset_parts);
 646                 qcom_socinfo->info.nsubset_parts_array_offset =
 647                         __le32_to_cpu(info->nsubset_parts_array_offset);
 648
 649                 debugfs_create_u32("num_clusters", 0444, qcom_socinfo->dbg_root,
 650                                    &qcom_socinfo->info.num_clusters);
 651                 debugfs_create_u32("ncluster_array_offset", 0444, qcom_socinfo->dbg_root,
 652                                    &qcom_socinfo->info.ncluster_array_offset);
 653                 debugfs_create_u32("num_subset_parts", 0444, qcom_socinfo->dbg_root,
 654                                    &qcom_socinfo->info.num_subset_parts);
 655                 debugfs_create_u32("nsubset_parts_array_offset", 0444, qcom_socinfo->dbg_root,
 656                                    &qcom_socinfo->info.nsubset_parts_array_offset);
 657                 fallthrough;
 658         case SOCINFO_VERSION(0, 13):
 659                 qcom_socinfo->info.nproduct_id = __le32_to_cpu(info->nproduct_id);
 660
 661                 debugfs_create_u32("nproduct_id", 0444, qcom_socinfo->dbg_root,
 662                                    &qcom_socinfo->info.nproduct_id);
 663                 DEBUGFS_ADD(info, chip_id);
 664                 fallthrough;
 665         case SOCINFO_VERSION(0, 12):
 666                 qcom_socinfo->info.chip_family =
 667                         __le32_to_cpu(info->chip_family);
 668                 qcom_socinfo->info.raw_device_family =
 669                         __le32_to_cpu(info->raw_device_family);
 670                 qcom_socinfo->info.raw_device_num =
 671                         __le32_to_cpu(info->raw_device_num);
 672
 673                 debugfs_create_x32("chip_family", 0444, qcom_socinfo->dbg_root,
 674                                    &qcom_socinfo->info.chip_family);
 675                 debugfs_create_x32("raw_device_family", 0444,
 676                                    qcom_socinfo->dbg_root,
 677                                    &qcom_socinfo->info.raw_device_family);
 678                 debugfs_create_x32("raw_device_number", 0444,
 679                                    qcom_socinfo->dbg_root,
 680                                    &qcom_socinfo->info.raw_device_num);
 681                 fallthrough;
 682         case SOCINFO_VERSION(0, 11):
 683                 num_pmics = le32_to_cpu(info->num_pmics);
 684                 pmic_array_offset = le32_to_cpu(info->pmic_array_offset);
 685                 if (pmic_array_offset + 2 * num_pmics * sizeof(u32) <= info_size)
 686                         DEBUGFS_ADD(info, pmic_model_array);
 687                 fallthrough;
 688         case SOCINFO_VERSION(0, 10):
 689         case SOCINFO_VERSION(0, 9):
 690                 qcom_socinfo->info.foundry_id = __le32_to_cpu(info->foundry_id);
 691
 692                 debugfs_create_u32("foundry_id", 0444, qcom_socinfo->dbg_root,
 693                                    &qcom_socinfo->info.foundry_id);
 694                 fallthrough;
 695         case SOCINFO_VERSION(0, 8):
 696         case SOCINFO_VERSION(0, 7):
 697                 DEBUGFS_ADD(info, pmic_model);
 698                 DEBUGFS_ADD(info, pmic_die_rev);
 699                 fallthrough;
 700         case SOCINFO_VERSION(0, 6):
 701                 qcom_socinfo->info.hw_plat_subtype =
 702                         __le32_to_cpu(info->hw_plat_subtype);
 703
 704                 debugfs_create_u32("hardware_platform_subtype", 0444,
 705                                    qcom_socinfo->dbg_root,
 706                                    &qcom_socinfo->info.hw_plat_subtype);
 707                 fallthrough;
 708         case SOCINFO_VERSION(0, 5):
 709                 qcom_socinfo->info.accessory_chip =
 710                         __le32_to_cpu(info->accessory_chip);
 711
 712                 debugfs_create_u32("accessory_chip", 0444,
 713                                    qcom_socinfo->dbg_root,
 714                                    &qcom_socinfo->info.accessory_chip);
 715                 fallthrough;
 716         case SOCINFO_VERSION(0, 4):
 717                 qcom_socinfo->info.plat_ver = __le32_to_cpu(info->plat_ver);
 718
 719                 debugfs_create_u32("platform_version", 0444,
 720                                    qcom_socinfo->dbg_root,
 721                                    &qcom_socinfo->info.plat_ver);
 722                 fallthrough;
 723         case SOCINFO_VERSION(0, 3):
 724                 qcom_socinfo->info.hw_plat = __le32_to_cpu(info->hw_plat);
 725
 726                 debugfs_create_u32("hardware_platform", 0444,
 727                                    qcom_socinfo->dbg_root,
 728                                    &qcom_socinfo->info.hw_plat);
 729                 fallthrough;
 730         case SOCINFO_VERSION(0, 2):
 731                 qcom_socinfo->info.raw_ver  = __le32_to_cpu(info->raw_ver);
 732
 733                 debugfs_create_u32("raw_version", 0444, qcom_socinfo->dbg_root,
 734                                    &qcom_socinfo->info.raw_ver);
 735                 fallthrough;
 736         case SOCINFO_VERSION(0, 1):
 737                 DEBUGFS_ADD(info, build_id);
 738                 break;
 739         }
 740
 741         versions = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_IMAGE_VERSION_TABLE,
 742                                  &size);
 743
 744         for (i = 0; i < ARRAY_SIZE(socinfo_image_names); i++) {
 745                 if (!socinfo_image_names[i])
 746                         continue;
 747
 748                 dentry = debugfs_create_dir(socinfo_image_names[i],
 749                                             qcom_socinfo->dbg_root);
 750                 debugfs_create_file("name", 0444, dentry, &versions[i],
 751                                     &qcom_image_name_ops);
 752                 debugfs_create_file("variant", 0444, dentry, &versions[i],
 753                                     &qcom_image_variant_ops);
 754                 debugfs_create_file("oem", 0444, dentry, &versions[i],
 755                                     &qcom_image_oem_ops);
 756         }
 757 }
 758
 759 static void socinfo_debugfs_exit(struct qcom_socinfo *qcom_socinfo)
 760 {
 761         debugfs_remove_recursive(qcom_socinfo->dbg_root);
 762 }
 763 #else
 764 static void socinfo_debugfs_init(struct qcom_socinfo *qcom_socinfo,
 765                                  struct socinfo *info, size_t info_size)
 766 {
 767 }
 768 static void socinfo_debugfs_exit(struct qcom_socinfo *qcom_socinfo) {  }
 769 #endif /* CONFIG_DEBUG_FS */
 770
 771 static int qcom_socinfo_probe(struct platform_device *pdev)
 772 {
 773         struct qcom_socinfo *qs;
 774         struct socinfo *info;
 775         size_t item_size;
 776
 777         info = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_HW_SW_BUILD_ID,
 778                               &item_size);
 779         if (IS_ERR(info)) {
 780                 dev_err(&pdev->dev, "Couldn't find socinfo\n");
 781                 return PTR_ERR(info);
 782         }
 783
 784         qs = devm_kzalloc(&pdev->dev, sizeof(*qs), GFP_KERNEL);
 785         if (!qs)
 786                 return -ENOMEM;
 787
 788         qs->attr.family = "Snapdragon";
 789         qs->attr.machine = socinfo_machine(&pdev->dev,
 790                                            le32_to_cpu(info->id));
 791         qs->attr.soc_id = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%u",
 792                                          le32_to_cpu(info->id));
 793         qs->attr.revision = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%u.%u",
 794                                            SOCINFO_MAJOR(le32_to_cpu(info->ver)),
 795                                            SOCINFO_MINOR(le32_to_cpu(info->ver)));
 796         if (!qs->attr.soc_id || !qs->attr.revision)
 797                 return -ENOMEM;
 798
 799         if (offsetof(struct socinfo, serial_num) <= item_size) {
 800                 qs->attr.serial_number = devm_kasprintf(&pdev->dev, GFP_KERNEL,
 801                                                         "%u",
 802                                                         le32_to_cpu(info->serial_num));
 803                 if (!qs->attr.serial_number)
 804                         return -ENOMEM;
 805         }
 806
 807         qs->soc_dev = soc_device_register(&qs->attr);
 808         if (IS_ERR(qs->soc_dev))
 809                 return PTR_ERR(qs->soc_dev);
 810
 811         socinfo_debugfs_init(qs, info, item_size);
 812
 813         /* Feed the soc specific unique data into entropy pool */
 814         add_device_randomness(info, item_size);
 815
 816         platform_set_drvdata(pdev, qs);
 817
 818         return 0;
 819 }
 820
 821 static void qcom_socinfo_remove(struct platform_device *pdev)
 822 {
 823         struct qcom_socinfo *qs = platform_get_drvdata(pdev);
 824
 825         soc_device_unregister(qs->soc_dev);
 826
 827         socinfo_debugfs_exit(qs);
 828 }
 829
 830 static struct platform_driver qcom_socinfo_driver = {
 831         .probe = qcom_socinfo_probe,
 832         .remove = qcom_socinfo_remove,
 833         .driver  = {
 834                 .name = "qcom-socinfo",
 835         },
 836 };
 837
 838 module_platform_driver(qcom_socinfo_driver);
 839
 840 MODULE_DESCRIPTION("Qualcomm SoCinfo driver");
 841 MODULE_LICENSE("GPL v2");
 842 MODULE_ALIAS("platform:qcom-socinfo");