1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (c) 2019 HiSilicon Limited. */ 3 4 #include <linux/acpi.h> 5 #include <linux/bitops.h> 6 #include <linux/debugfs.h> 7 #include <linux/init.h> 8 #include <linux/io.h> 9 #include <linux/iommu.h> 10 #include <linux/kernel.h> 11 #include <linux/module.h> 12 #include <linux/pci.h> 13 #include <linux/pm_runtime.h> 14 #include <linux/seq_file.h> 15 #include <linux/topology.h> 16 #include <linux/uacce.h> 17 18 #include "sec.h" 19 20 #define SEC_VF_NUM 63 21 #define SEC_QUEUE_NUM_V1 4096 22 #define PCI_DEVICE_ID_HUAWEI_SEC_PF 0xa255 23 24 #define SEC_BD_ERR_CHK_EN0 0xEFFFFFFF 25 #define SEC_BD_ERR_CHK_EN1 0x7ffff7fd 26 #define SEC_BD_ERR_CHK_EN3 0xffffbfff 27 28 #define SEC_SQE_SIZE 128 29 #define SEC_PF_DEF_Q_NUM 256 30 #define SEC_PF_DEF_Q_BASE 0 31 #define SEC_CTX_Q_NUM_DEF 2 32 #define SEC_CTX_Q_NUM_MAX 32 33 34 #define SEC_CTRL_CNT_CLR_CE 0x301120 35 #define SEC_CTRL_CNT_CLR_CE_BIT BIT(0) 36 #define SEC_CORE_INT_SOURCE 0x301010 37 #define SEC_CORE_INT_MASK 0x301000 38 #define SEC_CORE_INT_STATUS 0x301008 39 #define SEC_CORE_SRAM_ECC_ERR_INFO 0x301C14 40 #define SEC_ECC_NUM 16 41 #define SEC_ECC_MASH 0xFF 42 #define SEC_CORE_INT_DISABLE 0x0 43 44 #define SEC_RAS_CE_REG 0x301050 45 #define SEC_RAS_FE_REG 0x301054 46 #define SEC_RAS_NFE_REG 0x301058 47 #define SEC_RAS_FE_ENB_MSK 0x0 48 #define SEC_OOO_SHUTDOWN_SEL 0x301014 49 #define SEC_RAS_DISABLE 0x0 50 #define SEC_MEM_START_INIT_REG 0x301100 51 #define SEC_MEM_INIT_DONE_REG 0x301104 52 53 /* clock gating */ 54 #define SEC_CONTROL_REG 0x301200 55 #define SEC_DYNAMIC_GATE_REG 0x30121c 56 #define SEC_CORE_AUTO_GATE 0x30212c 57 #define SEC_DYNAMIC_GATE_EN 0x7fff 58 #define SEC_CORE_AUTO_GATE_EN GENMASK(3, 0) 59 #define SEC_CLK_GATE_ENABLE BIT(3) 60 #define SEC_CLK_GATE_DISABLE (~BIT(3)) 61 62 #define SEC_TRNG_EN_SHIFT 8 63 #define SEC_AXI_SHUTDOWN_ENABLE BIT(12) 64 #define SEC_AXI_SHUTDOWN_DISABLE 0xFFFFEFFF 65 66 #define SEC_INTERFACE_USER_CTRL0_REG 0x301220 67 #define SEC_INTERFACE_USER_CTRL1_REG 0x301224 68 #define SEC_SAA_EN_REG 0x301270 69 #define SEC_BD_ERR_CHK_EN_REG0 0x301380 70 #define SEC_BD_ERR_CHK_EN_REG1 0x301384 71 #define SEC_BD_ERR_CHK_EN_REG3 0x30138c 72 73 #define SEC_USER0_SMMU_NORMAL (BIT(23) | BIT(15)) 74 #define SEC_USER1_SMMU_NORMAL (BIT(31) | BIT(23) | BIT(15) | BIT(7)) 75 #define SEC_USER1_ENABLE_CONTEXT_SSV BIT(24) 76 #define SEC_USER1_ENABLE_DATA_SSV BIT(16) 77 #define SEC_USER1_WB_CONTEXT_SSV BIT(8) 78 #define SEC_USER1_WB_DATA_SSV BIT(0) 79 #define SEC_USER1_SVA_SET (SEC_USER1_ENABLE_CONTEXT_SSV | \ 80 SEC_USER1_ENABLE_DATA_SSV | \ 81 SEC_USER1_WB_CONTEXT_SSV | \ 82 SEC_USER1_WB_DATA_SSV) 83 #define SEC_USER1_SMMU_SVA (SEC_USER1_SMMU_NORMAL | SEC_USER1_SVA_SET) 84 #define SEC_USER1_SMMU_MASK (~SEC_USER1_SVA_SET) 85 #define SEC_INTERFACE_USER_CTRL0_REG_V3 0x302220 86 #define SEC_INTERFACE_USER_CTRL1_REG_V3 0x302224 87 #define SEC_USER1_SMMU_NORMAL_V3 (BIT(23) | BIT(17) | BIT(11) | BIT(5)) 88 #define SEC_USER1_SMMU_MASK_V3 0xFF79E79E 89 #define SEC_CORE_INT_STATUS_M_ECC BIT(2) 90 91 #define SEC_PREFETCH_CFG 0x301130 92 #define SEC_SVA_TRANS 0x301EC4 93 #define SEC_PREFETCH_ENABLE (~(BIT(0) | BIT(1) | BIT(11))) 94 #define SEC_PREFETCH_DISABLE BIT(1) 95 #define SEC_SVA_DISABLE_READY (BIT(7) | BIT(11)) 96 97 #define SEC_DELAY_10_US 10 98 #define SEC_POLL_TIMEOUT_US 1000 99 #define SEC_DBGFS_VAL_MAX_LEN 20 100 #define SEC_SINGLE_PORT_MAX_TRANS 0x2060 101 102 #define SEC_SQE_MASK_OFFSET 64 103 #define SEC_SQE_MASK_LEN 48 104 #define SEC_SHAPER_TYPE_RATE 400 105 106 #define SEC_DFX_BASE 0x301000 107 #define SEC_DFX_CORE 0x302100 108 #define SEC_DFX_COMMON1 0x301600 109 #define SEC_DFX_COMMON2 0x301C00 110 #define SEC_DFX_BASE_LEN 0x9D 111 #define SEC_DFX_CORE_LEN 0x32B 112 #define SEC_DFX_COMMON1_LEN 0x45 113 #define SEC_DFX_COMMON2_LEN 0xBA 114 115 #define SEC_ALG_BITMAP_SHIFT 32 116 117 #define SEC_CIPHER_BITMAP (GENMASK_ULL(5, 0) | GENMASK_ULL(16, 12) | \ 118 GENMASK(24, 21)) 119 #define SEC_DIGEST_BITMAP (GENMASK_ULL(11, 8) | GENMASK_ULL(20, 19) | \ 120 GENMASK_ULL(42, 25)) 121 #define SEC_AEAD_BITMAP (GENMASK_ULL(7, 6) | GENMASK_ULL(18, 17) | \ 122 GENMASK_ULL(45, 43)) 123 124 struct sec_hw_error { 125 u32 int_msk; 126 const char *msg; 127 }; 128 129 struct sec_dfx_item { 130 const char *name; 131 u32 offset; 132 }; 133 134 static const char sec_name[] = "hisi_sec2"; 135 static struct dentry *sec_debugfs_root; 136 137 static struct hisi_qm_list sec_devices = { 138 .register_to_crypto = sec_register_to_crypto, 139 .unregister_from_crypto = sec_unregister_from_crypto, 140 }; 141 142 static const struct hisi_qm_cap_info sec_basic_info[] = { 143 {SEC_QM_NFE_MASK_CAP, 0x3124, 0, GENMASK(31, 0), 0x0, 0x1C77, 0x7C77}, 144 {SEC_QM_RESET_MASK_CAP, 0x3128, 0, GENMASK(31, 0), 0x0, 0xC77, 0x6C77}, 145 {SEC_QM_OOO_SHUTDOWN_MASK_CAP, 0x3128, 0, GENMASK(31, 0), 0x0, 0x4, 0x6C77}, 146 {SEC_QM_CE_MASK_CAP, 0x312C, 0, GENMASK(31, 0), 0x0, 0x8, 0x8}, 147 {SEC_NFE_MASK_CAP, 0x3130, 0, GENMASK(31, 0), 0x0, 0x177, 0x60177}, 148 {SEC_RESET_MASK_CAP, 0x3134, 0, GENMASK(31, 0), 0x0, 0x177, 0x177}, 149 {SEC_OOO_SHUTDOWN_MASK_CAP, 0x3134, 0, GENMASK(31, 0), 0x0, 0x4, 0x177}, 150 {SEC_CE_MASK_CAP, 0x3138, 0, GENMASK(31, 0), 0x0, 0x88, 0xC088}, 151 {SEC_CLUSTER_NUM_CAP, 0x313c, 20, GENMASK(3, 0), 0x1, 0x1, 0x1}, 152 {SEC_CORE_TYPE_NUM_CAP, 0x313c, 16, GENMASK(3, 0), 0x1, 0x1, 0x1}, 153 {SEC_CORE_NUM_CAP, 0x313c, 8, GENMASK(7, 0), 0x4, 0x4, 0x4}, 154 {SEC_CORES_PER_CLUSTER_NUM_CAP, 0x313c, 0, GENMASK(7, 0), 0x4, 0x4, 0x4}, 155 {SEC_CORE_ENABLE_BITMAP, 0x3140, 32, GENMASK(31, 0), 0x17F, 0x17F, 0xF}, 156 {SEC_DRV_ALG_BITMAP_LOW, 0x3144, 0, GENMASK(31, 0), 0x18050CB, 0x18050CB, 0x18670CF}, 157 {SEC_DRV_ALG_BITMAP_HIGH, 0x3148, 0, GENMASK(31, 0), 0x395C, 0x395C, 0x395C}, 158 {SEC_DEV_ALG_BITMAP_LOW, 0x314c, 0, GENMASK(31, 0), 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF}, 159 {SEC_DEV_ALG_BITMAP_HIGH, 0x3150, 0, GENMASK(31, 0), 0x3FFF, 0x3FFF, 0x3FFF}, 160 {SEC_CORE1_ALG_BITMAP_LOW, 0x3154, 0, GENMASK(31, 0), 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF}, 161 {SEC_CORE1_ALG_BITMAP_HIGH, 0x3158, 0, GENMASK(31, 0), 0x3FFF, 0x3FFF, 0x3FFF}, 162 {SEC_CORE2_ALG_BITMAP_LOW, 0x315c, 0, GENMASK(31, 0), 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF}, 163 {SEC_CORE2_ALG_BITMAP_HIGH, 0x3160, 0, GENMASK(31, 0), 0x3FFF, 0x3FFF, 0x3FFF}, 164 {SEC_CORE3_ALG_BITMAP_LOW, 0x3164, 0, GENMASK(31, 0), 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF}, 165 {SEC_CORE3_ALG_BITMAP_HIGH, 0x3168, 0, GENMASK(31, 0), 0x3FFF, 0x3FFF, 0x3FFF}, 166 {SEC_CORE4_ALG_BITMAP_LOW, 0x316c, 0, GENMASK(31, 0), 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF}, 167 {SEC_CORE4_ALG_BITMAP_HIGH, 0x3170, 0, GENMASK(31, 0), 0x3FFF, 0x3FFF, 0x3FFF}, 168 }; 169 170 static const u32 sec_pre_store_caps[] = { 171 SEC_DRV_ALG_BITMAP_LOW, 172 SEC_DRV_ALG_BITMAP_HIGH, 173 SEC_DEV_ALG_BITMAP_LOW, 174 SEC_DEV_ALG_BITMAP_HIGH, 175 }; 176 177 static const struct qm_dev_alg sec_dev_algs[] = { { 178 .alg_msk = SEC_CIPHER_BITMAP, 179 .alg = "cipher\n", 180 }, { 181 .alg_msk = SEC_DIGEST_BITMAP, 182 .alg = "digest\n", 183 }, { 184 .alg_msk = SEC_AEAD_BITMAP, 185 .alg = "aead\n", 186 }, 187 }; 188 189 static const struct sec_hw_error sec_hw_errors[] = { 190 { 191 .int_msk = BIT(0), 192 .msg = "sec_axi_rresp_err_rint" 193 }, 194 { 195 .int_msk = BIT(1), 196 .msg = "sec_axi_bresp_err_rint" 197 }, 198 { 199 .int_msk = BIT(2), 200 .msg = "sec_ecc_2bit_err_rint" 201 }, 202 { 203 .int_msk = BIT(3), 204 .msg = "sec_ecc_1bit_err_rint" 205 }, 206 { 207 .int_msk = BIT(4), 208 .msg = "sec_req_trng_timeout_rint" 209 }, 210 { 211 .int_msk = BIT(5), 212 .msg = "sec_fsm_hbeat_rint" 213 }, 214 { 215 .int_msk = BIT(6), 216 .msg = "sec_channel_req_rng_timeout_rint" 217 }, 218 { 219 .int_msk = BIT(7), 220 .msg = "sec_bd_err_rint" 221 }, 222 { 223 .int_msk = BIT(8), 224 .msg = "sec_chain_buff_err_rint" 225 }, 226 { 227 .int_msk = BIT(14), 228 .msg = "sec_no_secure_access" 229 }, 230 { 231 .int_msk = BIT(15), 232 .msg = "sec_wrapping_key_auth_err" 233 }, 234 { 235 .int_msk = BIT(16), 236 .msg = "sec_km_key_crc_fail" 237 }, 238 { 239 .int_msk = BIT(17), 240 .msg = "sec_axi_poison_err" 241 }, 242 { 243 .int_msk = BIT(18), 244 .msg = "sec_sva_err" 245 }, 246 {} 247 }; 248 249 static const char * const sec_dbg_file_name[] = { 250 [SEC_CLEAR_ENABLE] = "clear_enable", 251 }; 252 253 static struct sec_dfx_item sec_dfx_labels[] = { 254 {"send_cnt", offsetof(struct sec_dfx, send_cnt)}, 255 {"recv_cnt", offsetof(struct sec_dfx, recv_cnt)}, 256 {"send_busy_cnt", offsetof(struct sec_dfx, send_busy_cnt)}, 257 {"recv_busy_cnt", offsetof(struct sec_dfx, recv_busy_cnt)}, 258 {"err_bd_cnt", offsetof(struct sec_dfx, err_bd_cnt)}, 259 {"invalid_req_cnt", offsetof(struct sec_dfx, invalid_req_cnt)}, 260 {"done_flag_cnt", offsetof(struct sec_dfx, done_flag_cnt)}, 261 }; 262 263 static const struct debugfs_reg32 sec_dfx_regs[] = { 264 {"SEC_PF_ABNORMAL_INT_SOURCE ", 0x301010}, 265 {"SEC_SAA_EN ", 0x301270}, 266 {"SEC_BD_LATENCY_MIN ", 0x301600}, 267 {"SEC_BD_LATENCY_MAX ", 0x301608}, 268 {"SEC_BD_LATENCY_AVG ", 0x30160C}, 269 {"SEC_BD_NUM_IN_SAA0 ", 0x301670}, 270 {"SEC_BD_NUM_IN_SAA1 ", 0x301674}, 271 {"SEC_BD_NUM_IN_SEC ", 0x301680}, 272 {"SEC_ECC_1BIT_CNT ", 0x301C00}, 273 {"SEC_ECC_1BIT_INFO ", 0x301C04}, 274 {"SEC_ECC_2BIT_CNT ", 0x301C10}, 275 {"SEC_ECC_2BIT_INFO ", 0x301C14}, 276 {"SEC_BD_SAA0 ", 0x301C20}, 277 {"SEC_BD_SAA1 ", 0x301C24}, 278 {"SEC_BD_SAA2 ", 0x301C28}, 279 {"SEC_BD_SAA3 ", 0x301C2C}, 280 {"SEC_BD_SAA4 ", 0x301C30}, 281 {"SEC_BD_SAA5 ", 0x301C34}, 282 {"SEC_BD_SAA6 ", 0x301C38}, 283 {"SEC_BD_SAA7 ", 0x301C3C}, 284 {"SEC_BD_SAA8 ", 0x301C40}, 285 {"SEC_RAS_CE_ENABLE ", 0x301050}, 286 {"SEC_RAS_FE_ENABLE ", 0x301054}, 287 {"SEC_RAS_NFE_ENABLE ", 0x301058}, 288 {"SEC_REQ_TRNG_TIME_TH ", 0x30112C}, 289 {"SEC_CHANNEL_RNG_REQ_THLD ", 0x302110}, 290 }; 291 292 /* define the SEC's dfx regs region and region length */ 293 static struct dfx_diff_registers sec_diff_regs[] = { 294 { 295 .reg_offset = SEC_DFX_BASE, 296 .reg_len = SEC_DFX_BASE_LEN, 297 }, { 298 .reg_offset = SEC_DFX_COMMON1, 299 .reg_len = SEC_DFX_COMMON1_LEN, 300 }, { 301 .reg_offset = SEC_DFX_COMMON2, 302 .reg_len = SEC_DFX_COMMON2_LEN, 303 }, { 304 .reg_offset = SEC_DFX_CORE, 305 .reg_len = SEC_DFX_CORE_LEN, 306 }, 307 }; 308 309 static int sec_diff_regs_show(struct seq_file *s, void *unused) 310 { 311 struct hisi_qm *qm = s->private; 312 313 hisi_qm_acc_diff_regs_dump(qm, s, qm->debug.acc_diff_regs, 314 ARRAY_SIZE(sec_diff_regs)); 315 316 return 0; 317 } 318 DEFINE_SHOW_ATTRIBUTE(sec_diff_regs); 319 320 static bool pf_q_num_flag; 321 static int sec_pf_q_num_set(const char *val, const struct kernel_param *kp) 322 { 323 pf_q_num_flag = true; 324 325 return q_num_set(val, kp, PCI_DEVICE_ID_HUAWEI_SEC_PF); 326 } 327 328 static const struct kernel_param_ops sec_pf_q_num_ops = { 329 .set = sec_pf_q_num_set, 330 .get = param_get_int, 331 }; 332 333 static u32 pf_q_num = SEC_PF_DEF_Q_NUM; 334 module_param_cb(pf_q_num, &sec_pf_q_num_ops, &pf_q_num, 0444); 335 MODULE_PARM_DESC(pf_q_num, "Number of queues in PF(v1 2-4096, v2 2-1024)"); 336 337 static int sec_ctx_q_num_set(const char *val, const struct kernel_param *kp) 338 { 339 u32 ctx_q_num; 340 int ret; 341 342 if (!val) 343 return -EINVAL; 344 345 ret = kstrtou32(val, 10, &ctx_q_num); 346 if (ret) 347 return -EINVAL; 348 349 if (!ctx_q_num || ctx_q_num > SEC_CTX_Q_NUM_MAX || ctx_q_num & 0x1) { 350 pr_err("ctx queue num[%u] is invalid!\n", ctx_q_num); 351 return -EINVAL; 352 } 353 354 return param_set_int(val, kp); 355 } 356 357 static const struct kernel_param_ops sec_ctx_q_num_ops = { 358 .set = sec_ctx_q_num_set, 359 .get = param_get_int, 360 }; 361 static u32 ctx_q_num = SEC_CTX_Q_NUM_DEF; 362 module_param_cb(ctx_q_num, &sec_ctx_q_num_ops, &ctx_q_num, 0444); 363 MODULE_PARM_DESC(ctx_q_num, "Queue num in ctx (2 default, 2, 4, ..., 32)"); 364 365 static const struct kernel_param_ops vfs_num_ops = { 366 .set = vfs_num_set, 367 .get = param_get_int, 368 }; 369 370 static u32 vfs_num; 371 module_param_cb(vfs_num, &vfs_num_ops, &vfs_num, 0444); 372 MODULE_PARM_DESC(vfs_num, "Number of VFs to enable(1-63), 0(default)"); 373 374 void sec_destroy_qps(struct hisi_qp **qps, int qp_num) 375 { 376 hisi_qm_free_qps(qps, qp_num); 377 kfree(qps); 378 } 379 380 struct hisi_qp **sec_create_qps(void) 381 { 382 int node = cpu_to_node(raw_smp_processor_id()); 383 u32 ctx_num = ctx_q_num; 384 struct hisi_qp **qps; 385 int ret; 386 387 qps = kcalloc(ctx_num, sizeof(struct hisi_qp *), GFP_KERNEL); 388 if (!qps) 389 return NULL; 390 391 ret = hisi_qm_alloc_qps_node(&sec_devices, ctx_num, 0, node, qps); 392 if (!ret) 393 return qps; 394 395 kfree(qps); 396 return NULL; 397 } 398 399 u64 sec_get_alg_bitmap(struct hisi_qm *qm, u32 high, u32 low) 400 { 401 u32 cap_val_h, cap_val_l; 402 403 cap_val_h = qm->cap_tables.dev_cap_table[high].cap_val; 404 cap_val_l = qm->cap_tables.dev_cap_table[low].cap_val; 405 406 return ((u64)cap_val_h << SEC_ALG_BITMAP_SHIFT) | (u64)cap_val_l; 407 } 408 409 static const struct kernel_param_ops sec_uacce_mode_ops = { 410 .set = uacce_mode_set, 411 .get = param_get_int, 412 }; 413 414 /* 415 * uacce_mode = 0 means sec only register to crypto, 416 * uacce_mode = 1 means sec both register to crypto and uacce. 417 */ 418 static u32 uacce_mode = UACCE_MODE_NOUACCE; 419 module_param_cb(uacce_mode, &sec_uacce_mode_ops, &uacce_mode, 0444); 420 MODULE_PARM_DESC(uacce_mode, UACCE_MODE_DESC); 421 422 static const struct pci_device_id sec_dev_ids[] = { 423 { PCI_DEVICE(PCI_VENDOR_ID_HUAWEI, PCI_DEVICE_ID_HUAWEI_SEC_PF) }, 424 { PCI_DEVICE(PCI_VENDOR_ID_HUAWEI, PCI_DEVICE_ID_HUAWEI_SEC_VF) }, 425 { 0, } 426 }; 427 MODULE_DEVICE_TABLE(pci, sec_dev_ids); 428 429 static void sec_set_endian(struct hisi_qm *qm) 430 { 431 u32 reg; 432 433 reg = readl_relaxed(qm->io_base + SEC_CONTROL_REG); 434 reg &= ~(BIT(1) | BIT(0)); 435 if (!IS_ENABLED(CONFIG_64BIT)) 436 reg |= BIT(1); 437 438 if (!IS_ENABLED(CONFIG_CPU_LITTLE_ENDIAN)) 439 reg |= BIT(0); 440 441 writel_relaxed(reg, qm->io_base + SEC_CONTROL_REG); 442 } 443 444 static void sec_engine_sva_config(struct hisi_qm *qm) 445 { 446 u32 reg; 447 448 if (qm->ver > QM_HW_V2) { 449 reg = readl_relaxed(qm->io_base + 450 SEC_INTERFACE_USER_CTRL0_REG_V3); 451 reg |= SEC_USER0_SMMU_NORMAL; 452 writel_relaxed(reg, qm->io_base + 453 SEC_INTERFACE_USER_CTRL0_REG_V3); 454 455 reg = readl_relaxed(qm->io_base + 456 SEC_INTERFACE_USER_CTRL1_REG_V3); 457 reg &= SEC_USER1_SMMU_MASK_V3; 458 reg |= SEC_USER1_SMMU_NORMAL_V3; 459 writel_relaxed(reg, qm->io_base + 460 SEC_INTERFACE_USER_CTRL1_REG_V3); 461 } else { 462 reg = readl_relaxed(qm->io_base + 463 SEC_INTERFACE_USER_CTRL0_REG); 464 reg |= SEC_USER0_SMMU_NORMAL; 465 writel_relaxed(reg, qm->io_base + 466 SEC_INTERFACE_USER_CTRL0_REG); 467 reg = readl_relaxed(qm->io_base + 468 SEC_INTERFACE_USER_CTRL1_REG); 469 reg &= SEC_USER1_SMMU_MASK; 470 if (qm->use_sva) 471 reg |= SEC_USER1_SMMU_SVA; 472 else 473 reg |= SEC_USER1_SMMU_NORMAL; 474 writel_relaxed(reg, qm->io_base + 475 SEC_INTERFACE_USER_CTRL1_REG); 476 } 477 } 478 479 static void sec_open_sva_prefetch(struct hisi_qm *qm) 480 { 481 u32 val; 482 int ret; 483 484 if (!test_bit(QM_SUPPORT_SVA_PREFETCH, &qm->caps)) 485 return; 486 487 /* Enable prefetch */ 488 val = readl_relaxed(qm->io_base + SEC_PREFETCH_CFG); 489 val &= SEC_PREFETCH_ENABLE; 490 writel(val, qm->io_base + SEC_PREFETCH_CFG); 491 492 ret = readl_relaxed_poll_timeout(qm->io_base + SEC_PREFETCH_CFG, 493 val, !(val & SEC_PREFETCH_DISABLE), 494 SEC_DELAY_10_US, SEC_POLL_TIMEOUT_US); 495 if (ret) 496 pci_err(qm->pdev, "failed to open sva prefetch\n"); 497 } 498 499 static void sec_close_sva_prefetch(struct hisi_qm *qm) 500 { 501 u32 val; 502 int ret; 503 504 if (!test_bit(QM_SUPPORT_SVA_PREFETCH, &qm->caps)) 505 return; 506 507 val = readl_relaxed(qm->io_base + SEC_PREFETCH_CFG); 508 val |= SEC_PREFETCH_DISABLE; 509 writel(val, qm->io_base + SEC_PREFETCH_CFG); 510 511 ret = readl_relaxed_poll_timeout(qm->io_base + SEC_SVA_TRANS, 512 val, !(val & SEC_SVA_DISABLE_READY), 513 SEC_DELAY_10_US, SEC_POLL_TIMEOUT_US); 514 if (ret) 515 pci_err(qm->pdev, "failed to close sva prefetch\n"); 516 } 517 518 static void sec_enable_clock_gate(struct hisi_qm *qm) 519 { 520 u32 val; 521 522 if (qm->ver < QM_HW_V3) 523 return; 524 525 val = readl_relaxed(qm->io_base + SEC_CONTROL_REG); 526 val |= SEC_CLK_GATE_ENABLE; 527 writel_relaxed(val, qm->io_base + SEC_CONTROL_REG); 528 529 val = readl(qm->io_base + SEC_DYNAMIC_GATE_REG); 530 val |= SEC_DYNAMIC_GATE_EN; 531 writel(val, qm->io_base + SEC_DYNAMIC_GATE_REG); 532 533 val = readl(qm->io_base + SEC_CORE_AUTO_GATE); 534 val |= SEC_CORE_AUTO_GATE_EN; 535 writel(val, qm->io_base + SEC_CORE_AUTO_GATE); 536 } 537 538 static void sec_disable_clock_gate(struct hisi_qm *qm) 539 { 540 u32 val; 541 542 /* Kunpeng920 needs to close clock gating */ 543 val = readl_relaxed(qm->io_base + SEC_CONTROL_REG); 544 val &= SEC_CLK_GATE_DISABLE; 545 writel_relaxed(val, qm->io_base + SEC_CONTROL_REG); 546 } 547 548 static int sec_engine_init(struct hisi_qm *qm) 549 { 550 int ret; 551 u32 reg; 552 553 /* disable clock gate control before mem init */ 554 sec_disable_clock_gate(qm); 555 556 writel_relaxed(0x1, qm->io_base + SEC_MEM_START_INIT_REG); 557 558 ret = readl_relaxed_poll_timeout(qm->io_base + SEC_MEM_INIT_DONE_REG, 559 reg, reg & 0x1, SEC_DELAY_10_US, 560 SEC_POLL_TIMEOUT_US); 561 if (ret) { 562 pci_err(qm->pdev, "fail to init sec mem\n"); 563 return ret; 564 } 565 566 reg = readl_relaxed(qm->io_base + SEC_CONTROL_REG); 567 reg |= (0x1 << SEC_TRNG_EN_SHIFT); 568 writel_relaxed(reg, qm->io_base + SEC_CONTROL_REG); 569 570 sec_engine_sva_config(qm); 571 572 writel(SEC_SINGLE_PORT_MAX_TRANS, 573 qm->io_base + AM_CFG_SINGLE_PORT_MAX_TRANS); 574 575 reg = hisi_qm_get_hw_info(qm, sec_basic_info, SEC_CORE_ENABLE_BITMAP, qm->cap_ver); 576 writel(reg, qm->io_base + SEC_SAA_EN_REG); 577 578 if (qm->ver < QM_HW_V3) { 579 /* HW V2 enable sm4 extra mode, as ctr/ecb */ 580 writel_relaxed(SEC_BD_ERR_CHK_EN0, 581 qm->io_base + SEC_BD_ERR_CHK_EN_REG0); 582 583 /* HW V2 enable sm4 xts mode multiple iv */ 584 writel_relaxed(SEC_BD_ERR_CHK_EN1, 585 qm->io_base + SEC_BD_ERR_CHK_EN_REG1); 586 writel_relaxed(SEC_BD_ERR_CHK_EN3, 587 qm->io_base + SEC_BD_ERR_CHK_EN_REG3); 588 } 589 590 /* config endian */ 591 sec_set_endian(qm); 592 593 sec_enable_clock_gate(qm); 594 595 return 0; 596 } 597 598 static int sec_set_user_domain_and_cache(struct hisi_qm *qm) 599 { 600 /* qm user domain */ 601 writel(AXUSER_BASE, qm->io_base + QM_ARUSER_M_CFG_1); 602 writel(ARUSER_M_CFG_ENABLE, qm->io_base + QM_ARUSER_M_CFG_ENABLE); 603 writel(AXUSER_BASE, qm->io_base + QM_AWUSER_M_CFG_1); 604 writel(AWUSER_M_CFG_ENABLE, qm->io_base + QM_AWUSER_M_CFG_ENABLE); 605 writel(WUSER_M_CFG_ENABLE, qm->io_base + QM_WUSER_M_CFG_ENABLE); 606 607 /* qm cache */ 608 writel(AXI_M_CFG, qm->io_base + QM_AXI_M_CFG); 609 writel(AXI_M_CFG_ENABLE, qm->io_base + QM_AXI_M_CFG_ENABLE); 610 611 /* disable FLR triggered by BME(bus master enable) */ 612 writel(PEH_AXUSER_CFG, qm->io_base + QM_PEH_AXUSER_CFG); 613 writel(PEH_AXUSER_CFG_ENABLE, qm->io_base + QM_PEH_AXUSER_CFG_ENABLE); 614 615 /* enable sqc,cqc writeback */ 616 writel(SQC_CACHE_ENABLE | CQC_CACHE_ENABLE | SQC_CACHE_WB_ENABLE | 617 CQC_CACHE_WB_ENABLE | FIELD_PREP(SQC_CACHE_WB_THRD, 1) | 618 FIELD_PREP(CQC_CACHE_WB_THRD, 1), qm->io_base + QM_CACHE_CTL); 619 620 return sec_engine_init(qm); 621 } 622 623 /* sec_debug_regs_clear() - clear the sec debug regs */ 624 static void sec_debug_regs_clear(struct hisi_qm *qm) 625 { 626 int i; 627 628 /* clear sec dfx regs */ 629 writel(0x1, qm->io_base + SEC_CTRL_CNT_CLR_CE); 630 for (i = 0; i < ARRAY_SIZE(sec_dfx_regs); i++) 631 readl(qm->io_base + sec_dfx_regs[i].offset); 632 633 /* clear rdclr_en */ 634 writel(0x0, qm->io_base + SEC_CTRL_CNT_CLR_CE); 635 636 hisi_qm_debug_regs_clear(qm); 637 } 638 639 static void sec_master_ooo_ctrl(struct hisi_qm *qm, bool enable) 640 { 641 u32 val1, val2; 642 643 val1 = readl(qm->io_base + SEC_CONTROL_REG); 644 if (enable) { 645 val1 |= SEC_AXI_SHUTDOWN_ENABLE; 646 val2 = hisi_qm_get_hw_info(qm, sec_basic_info, 647 SEC_OOO_SHUTDOWN_MASK_CAP, qm->cap_ver); 648 } else { 649 val1 &= SEC_AXI_SHUTDOWN_DISABLE; 650 val2 = 0x0; 651 } 652 653 if (qm->ver > QM_HW_V2) 654 writel(val2, qm->io_base + SEC_OOO_SHUTDOWN_SEL); 655 656 writel(val1, qm->io_base + SEC_CONTROL_REG); 657 } 658 659 static void sec_hw_error_enable(struct hisi_qm *qm) 660 { 661 u32 ce, nfe; 662 663 if (qm->ver == QM_HW_V1) { 664 writel(SEC_CORE_INT_DISABLE, qm->io_base + SEC_CORE_INT_MASK); 665 pci_info(qm->pdev, "V1 not support hw error handle\n"); 666 return; 667 } 668 669 ce = hisi_qm_get_hw_info(qm, sec_basic_info, SEC_CE_MASK_CAP, qm->cap_ver); 670 nfe = hisi_qm_get_hw_info(qm, sec_basic_info, SEC_NFE_MASK_CAP, qm->cap_ver); 671 672 /* clear SEC hw error source if having */ 673 writel(ce | nfe | SEC_RAS_FE_ENB_MSK, qm->io_base + SEC_CORE_INT_SOURCE); 674 675 /* enable RAS int */ 676 writel(ce, qm->io_base + SEC_RAS_CE_REG); 677 writel(SEC_RAS_FE_ENB_MSK, qm->io_base + SEC_RAS_FE_REG); 678 writel(nfe, qm->io_base + SEC_RAS_NFE_REG); 679 680 /* enable SEC block master OOO when nfe occurs on Kunpeng930 */ 681 sec_master_ooo_ctrl(qm, true); 682 683 /* enable SEC hw error interrupts */ 684 writel(ce | nfe | SEC_RAS_FE_ENB_MSK, qm->io_base + SEC_CORE_INT_MASK); 685 } 686 687 static void sec_hw_error_disable(struct hisi_qm *qm) 688 { 689 /* disable SEC hw error interrupts */ 690 writel(SEC_CORE_INT_DISABLE, qm->io_base + SEC_CORE_INT_MASK); 691 692 /* disable SEC block master OOO when nfe occurs on Kunpeng930 */ 693 sec_master_ooo_ctrl(qm, false); 694 695 /* disable RAS int */ 696 writel(SEC_RAS_DISABLE, qm->io_base + SEC_RAS_CE_REG); 697 writel(SEC_RAS_DISABLE, qm->io_base + SEC_RAS_FE_REG); 698 writel(SEC_RAS_DISABLE, qm->io_base + SEC_RAS_NFE_REG); 699 } 700 701 static u32 sec_clear_enable_read(struct hisi_qm *qm) 702 { 703 return readl(qm->io_base + SEC_CTRL_CNT_CLR_CE) & 704 SEC_CTRL_CNT_CLR_CE_BIT; 705 } 706 707 static int sec_clear_enable_write(struct hisi_qm *qm, u32 val) 708 { 709 u32 tmp; 710 711 if (val != 1 && val) 712 return -EINVAL; 713 714 tmp = (readl(qm->io_base + SEC_CTRL_CNT_CLR_CE) & 715 ~SEC_CTRL_CNT_CLR_CE_BIT) | val; 716 writel(tmp, qm->io_base + SEC_CTRL_CNT_CLR_CE); 717 718 return 0; 719 } 720 721 static ssize_t sec_debug_read(struct file *filp, char __user *buf, 722 size_t count, loff_t *pos) 723 { 724 struct sec_debug_file *file = filp->private_data; 725 char tbuf[SEC_DBGFS_VAL_MAX_LEN]; 726 struct hisi_qm *qm = file->qm; 727 u32 val; 728 int ret; 729 730 ret = hisi_qm_get_dfx_access(qm); 731 if (ret) 732 return ret; 733 734 spin_lock_irq(&file->lock); 735 736 switch (file->index) { 737 case SEC_CLEAR_ENABLE: 738 val = sec_clear_enable_read(qm); 739 break; 740 default: 741 goto err_input; 742 } 743 744 spin_unlock_irq(&file->lock); 745 746 hisi_qm_put_dfx_access(qm); 747 ret = snprintf(tbuf, SEC_DBGFS_VAL_MAX_LEN, "%u\n", val); 748 return simple_read_from_buffer(buf, count, pos, tbuf, ret); 749 750 err_input: 751 spin_unlock_irq(&file->lock); 752 hisi_qm_put_dfx_access(qm); 753 return -EINVAL; 754 } 755 756 static ssize_t sec_debug_write(struct file *filp, const char __user *buf, 757 size_t count, loff_t *pos) 758 { 759 struct sec_debug_file *file = filp->private_data; 760 char tbuf[SEC_DBGFS_VAL_MAX_LEN]; 761 struct hisi_qm *qm = file->qm; 762 unsigned long val; 763 int len, ret; 764 765 if (*pos != 0) 766 return 0; 767 768 if (count >= SEC_DBGFS_VAL_MAX_LEN) 769 return -ENOSPC; 770 771 len = simple_write_to_buffer(tbuf, SEC_DBGFS_VAL_MAX_LEN - 1, 772 pos, buf, count); 773 if (len < 0) 774 return len; 775 776 tbuf[len] = '\0'; 777 if (kstrtoul(tbuf, 0, &val)) 778 return -EFAULT; 779 780 ret = hisi_qm_get_dfx_access(qm); 781 if (ret) 782 return ret; 783 784 spin_lock_irq(&file->lock); 785 786 switch (file->index) { 787 case SEC_CLEAR_ENABLE: 788 ret = sec_clear_enable_write(qm, val); 789 if (ret) 790 goto err_input; 791 break; 792 default: 793 ret = -EINVAL; 794 goto err_input; 795 } 796 797 ret = count; 798 799 err_input: 800 spin_unlock_irq(&file->lock); 801 hisi_qm_put_dfx_access(qm); 802 return ret; 803 } 804 805 static const struct file_operations sec_dbg_fops = { 806 .owner = THIS_MODULE, 807 .open = simple_open, 808 .read = sec_debug_read, 809 .write = sec_debug_write, 810 }; 811 812 static int sec_debugfs_atomic64_get(void *data, u64 *val) 813 { 814 *val = atomic64_read((atomic64_t *)data); 815 816 return 0; 817 } 818 819 static int sec_debugfs_atomic64_set(void *data, u64 val) 820 { 821 if (val) 822 return -EINVAL; 823 824 atomic64_set((atomic64_t *)data, 0); 825 826 return 0; 827 } 828 829 DEFINE_DEBUGFS_ATTRIBUTE(sec_atomic64_ops, sec_debugfs_atomic64_get, 830 sec_debugfs_atomic64_set, "%lld\n"); 831 832 static int sec_regs_show(struct seq_file *s, void *unused) 833 { 834 hisi_qm_regs_dump(s, s->private); 835 836 return 0; 837 } 838 839 DEFINE_SHOW_ATTRIBUTE(sec_regs); 840 841 static int sec_core_debug_init(struct hisi_qm *qm) 842 { 843 struct dfx_diff_registers *sec_regs = qm->debug.acc_diff_regs; 844 struct sec_dev *sec = container_of(qm, struct sec_dev, qm); 845 struct device *dev = &qm->pdev->dev; 846 struct sec_dfx *dfx = &sec->debug.dfx; 847 struct debugfs_regset32 *regset; 848 struct dentry *tmp_d; 849 int i; 850 851 tmp_d = debugfs_create_dir("sec_dfx", qm->debug.debug_root); 852 853 regset = devm_kzalloc(dev, sizeof(*regset), GFP_KERNEL); 854 if (!regset) 855 return -ENOMEM; 856 857 regset->regs = sec_dfx_regs; 858 regset->nregs = ARRAY_SIZE(sec_dfx_regs); 859 regset->base = qm->io_base; 860 regset->dev = dev; 861 862 if (qm->pdev->device == PCI_DEVICE_ID_HUAWEI_SEC_PF) 863 debugfs_create_file("regs", 0444, tmp_d, regset, &sec_regs_fops); 864 if (qm->fun_type == QM_HW_PF && sec_regs) 865 debugfs_create_file("diff_regs", 0444, tmp_d, 866 qm, &sec_diff_regs_fops); 867 868 for (i = 0; i < ARRAY_SIZE(sec_dfx_labels); i++) { 869 atomic64_t *data = (atomic64_t *)((uintptr_t)dfx + 870 sec_dfx_labels[i].offset); 871 debugfs_create_file(sec_dfx_labels[i].name, 0644, 872 tmp_d, data, &sec_atomic64_ops); 873 } 874 875 return 0; 876 } 877 878 static int sec_debug_init(struct hisi_qm *qm) 879 { 880 struct sec_dev *sec = container_of(qm, struct sec_dev, qm); 881 int i; 882 883 if (qm->pdev->device == PCI_DEVICE_ID_HUAWEI_SEC_PF) { 884 for (i = SEC_CLEAR_ENABLE; i < SEC_DEBUG_FILE_NUM; i++) { 885 spin_lock_init(&sec->debug.files[i].lock); 886 sec->debug.files[i].index = i; 887 sec->debug.files[i].qm = qm; 888 889 debugfs_create_file(sec_dbg_file_name[i], 0600, 890 qm->debug.debug_root, 891 sec->debug.files + i, 892 &sec_dbg_fops); 893 } 894 } 895 896 return sec_core_debug_init(qm); 897 } 898 899 static int sec_debugfs_init(struct hisi_qm *qm) 900 { 901 struct device *dev = &qm->pdev->dev; 902 int ret; 903 904 qm->debug.debug_root = debugfs_create_dir(dev_name(dev), 905 sec_debugfs_root); 906 qm->debug.sqe_mask_offset = SEC_SQE_MASK_OFFSET; 907 qm->debug.sqe_mask_len = SEC_SQE_MASK_LEN; 908 909 ret = hisi_qm_regs_debugfs_init(qm, sec_diff_regs, ARRAY_SIZE(sec_diff_regs)); 910 if (ret) { 911 dev_warn(dev, "Failed to init SEC diff regs!\n"); 912 goto debugfs_remove; 913 } 914 915 hisi_qm_debug_init(qm); 916 917 ret = sec_debug_init(qm); 918 if (ret) 919 goto failed_to_create; 920 921 return 0; 922 923 failed_to_create: 924 hisi_qm_regs_debugfs_uninit(qm, ARRAY_SIZE(sec_diff_regs)); 925 debugfs_remove: 926 debugfs_remove_recursive(sec_debugfs_root); 927 return ret; 928 } 929 930 static void sec_debugfs_exit(struct hisi_qm *qm) 931 { 932 hisi_qm_regs_debugfs_uninit(qm, ARRAY_SIZE(sec_diff_regs)); 933 934 debugfs_remove_recursive(qm->debug.debug_root); 935 } 936 937 static int sec_show_last_regs_init(struct hisi_qm *qm) 938 { 939 struct qm_debug *debug = &qm->debug; 940 int i; 941 942 debug->last_words = kcalloc(ARRAY_SIZE(sec_dfx_regs), 943 sizeof(unsigned int), GFP_KERNEL); 944 if (!debug->last_words) 945 return -ENOMEM; 946 947 for (i = 0; i < ARRAY_SIZE(sec_dfx_regs); i++) 948 debug->last_words[i] = readl_relaxed(qm->io_base + 949 sec_dfx_regs[i].offset); 950 951 return 0; 952 } 953 954 static void sec_show_last_regs_uninit(struct hisi_qm *qm) 955 { 956 struct qm_debug *debug = &qm->debug; 957 958 if (qm->fun_type == QM_HW_VF || !debug->last_words) 959 return; 960 961 kfree(debug->last_words); 962 debug->last_words = NULL; 963 } 964 965 static void sec_show_last_dfx_regs(struct hisi_qm *qm) 966 { 967 struct qm_debug *debug = &qm->debug; 968 struct pci_dev *pdev = qm->pdev; 969 u32 val; 970 int i; 971 972 if (qm->fun_type == QM_HW_VF || !debug->last_words) 973 return; 974 975 /* dumps last word of the debugging registers during controller reset */ 976 for (i = 0; i < ARRAY_SIZE(sec_dfx_regs); i++) { 977 val = readl_relaxed(qm->io_base + sec_dfx_regs[i].offset); 978 if (val != debug->last_words[i]) 979 pci_info(pdev, "%s \t= 0x%08x => 0x%08x\n", 980 sec_dfx_regs[i].name, debug->last_words[i], val); 981 } 982 } 983 984 static void sec_log_hw_error(struct hisi_qm *qm, u32 err_sts) 985 { 986 const struct sec_hw_error *errs = sec_hw_errors; 987 struct device *dev = &qm->pdev->dev; 988 u32 err_val; 989 990 while (errs->msg) { 991 if (errs->int_msk & err_sts) { 992 dev_err(dev, "%s [error status=0x%x] found\n", 993 errs->msg, errs->int_msk); 994 995 if (SEC_CORE_INT_STATUS_M_ECC & errs->int_msk) { 996 err_val = readl(qm->io_base + 997 SEC_CORE_SRAM_ECC_ERR_INFO); 998 dev_err(dev, "multi ecc sram num=0x%x\n", 999 ((err_val) >> SEC_ECC_NUM) & 1000 SEC_ECC_MASH); 1001 } 1002 } 1003 errs++; 1004 } 1005 } 1006 1007 static u32 sec_get_hw_err_status(struct hisi_qm *qm) 1008 { 1009 return readl(qm->io_base + SEC_CORE_INT_STATUS); 1010 } 1011 1012 static void sec_clear_hw_err_status(struct hisi_qm *qm, u32 err_sts) 1013 { 1014 u32 nfe; 1015 1016 writel(err_sts, qm->io_base + SEC_CORE_INT_SOURCE); 1017 nfe = hisi_qm_get_hw_info(qm, sec_basic_info, SEC_NFE_MASK_CAP, qm->cap_ver); 1018 writel(nfe, qm->io_base + SEC_RAS_NFE_REG); 1019 } 1020 1021 static void sec_open_axi_master_ooo(struct hisi_qm *qm) 1022 { 1023 u32 val; 1024 1025 val = readl(qm->io_base + SEC_CONTROL_REG); 1026 writel(val & SEC_AXI_SHUTDOWN_DISABLE, qm->io_base + SEC_CONTROL_REG); 1027 writel(val | SEC_AXI_SHUTDOWN_ENABLE, qm->io_base + SEC_CONTROL_REG); 1028 } 1029 1030 static void sec_err_info_init(struct hisi_qm *qm) 1031 { 1032 struct hisi_qm_err_info *err_info = &qm->err_info; 1033 1034 err_info->fe = SEC_RAS_FE_ENB_MSK; 1035 err_info->ce = hisi_qm_get_hw_info(qm, sec_basic_info, SEC_QM_CE_MASK_CAP, qm->cap_ver); 1036 err_info->nfe = hisi_qm_get_hw_info(qm, sec_basic_info, SEC_QM_NFE_MASK_CAP, qm->cap_ver); 1037 err_info->ecc_2bits_mask = SEC_CORE_INT_STATUS_M_ECC; 1038 err_info->qm_shutdown_mask = hisi_qm_get_hw_info(qm, sec_basic_info, 1039 SEC_QM_OOO_SHUTDOWN_MASK_CAP, qm->cap_ver); 1040 err_info->dev_shutdown_mask = hisi_qm_get_hw_info(qm, sec_basic_info, 1041 SEC_OOO_SHUTDOWN_MASK_CAP, qm->cap_ver); 1042 err_info->qm_reset_mask = hisi_qm_get_hw_info(qm, sec_basic_info, 1043 SEC_QM_RESET_MASK_CAP, qm->cap_ver); 1044 err_info->dev_reset_mask = hisi_qm_get_hw_info(qm, sec_basic_info, 1045 SEC_RESET_MASK_CAP, qm->cap_ver); 1046 err_info->msi_wr_port = BIT(0); 1047 err_info->acpi_rst = "SRST"; 1048 } 1049 1050 static const struct hisi_qm_err_ini sec_err_ini = { 1051 .hw_init = sec_set_user_domain_and_cache, 1052 .hw_err_enable = sec_hw_error_enable, 1053 .hw_err_disable = sec_hw_error_disable, 1054 .get_dev_hw_err_status = sec_get_hw_err_status, 1055 .clear_dev_hw_err_status = sec_clear_hw_err_status, 1056 .log_dev_hw_err = sec_log_hw_error, 1057 .open_axi_master_ooo = sec_open_axi_master_ooo, 1058 .open_sva_prefetch = sec_open_sva_prefetch, 1059 .close_sva_prefetch = sec_close_sva_prefetch, 1060 .show_last_dfx_regs = sec_show_last_dfx_regs, 1061 .err_info_init = sec_err_info_init, 1062 }; 1063 1064 static int sec_pf_probe_init(struct sec_dev *sec) 1065 { 1066 struct hisi_qm *qm = &sec->qm; 1067 int ret; 1068 1069 qm->err_ini = &sec_err_ini; 1070 qm->err_ini->err_info_init(qm); 1071 1072 ret = sec_set_user_domain_and_cache(qm); 1073 if (ret) 1074 return ret; 1075 1076 sec_open_sva_prefetch(qm); 1077 hisi_qm_dev_err_init(qm); 1078 sec_debug_regs_clear(qm); 1079 ret = sec_show_last_regs_init(qm); 1080 if (ret) 1081 pci_err(qm->pdev, "Failed to init last word regs!\n"); 1082 1083 return ret; 1084 } 1085 1086 static int sec_pre_store_cap_reg(struct hisi_qm *qm) 1087 { 1088 struct hisi_qm_cap_record *sec_cap; 1089 struct pci_dev *pdev = qm->pdev; 1090 size_t i, size; 1091 1092 size = ARRAY_SIZE(sec_pre_store_caps); 1093 sec_cap = devm_kzalloc(&pdev->dev, sizeof(*sec_cap) * size, GFP_KERNEL); 1094 if (!sec_cap) 1095 return -ENOMEM; 1096 1097 for (i = 0; i < size; i++) { 1098 sec_cap[i].type = sec_pre_store_caps[i]; 1099 sec_cap[i].cap_val = hisi_qm_get_hw_info(qm, sec_basic_info, 1100 sec_pre_store_caps[i], qm->cap_ver); 1101 } 1102 1103 qm->cap_tables.dev_cap_table = sec_cap; 1104 1105 return 0; 1106 } 1107 1108 static int sec_qm_init(struct hisi_qm *qm, struct pci_dev *pdev) 1109 { 1110 u64 alg_msk; 1111 int ret; 1112 1113 qm->pdev = pdev; 1114 qm->ver = pdev->revision; 1115 qm->mode = uacce_mode; 1116 qm->sqe_size = SEC_SQE_SIZE; 1117 qm->dev_name = sec_name; 1118 1119 qm->fun_type = (pdev->device == PCI_DEVICE_ID_HUAWEI_SEC_PF) ? 1120 QM_HW_PF : QM_HW_VF; 1121 if (qm->fun_type == QM_HW_PF) { 1122 qm->qp_base = SEC_PF_DEF_Q_BASE; 1123 qm->qp_num = pf_q_num; 1124 qm->debug.curr_qm_qp_num = pf_q_num; 1125 qm->qm_list = &sec_devices; 1126 if (pf_q_num_flag) 1127 set_bit(QM_MODULE_PARAM, &qm->misc_ctl); 1128 } else if (qm->fun_type == QM_HW_VF && qm->ver == QM_HW_V1) { 1129 /* 1130 * have no way to get qm configure in VM in v1 hardware, 1131 * so currently force PF to uses SEC_PF_DEF_Q_NUM, and force 1132 * to trigger only one VF in v1 hardware. 1133 * v2 hardware has no such problem. 1134 */ 1135 qm->qp_base = SEC_PF_DEF_Q_NUM; 1136 qm->qp_num = SEC_QUEUE_NUM_V1 - SEC_PF_DEF_Q_NUM; 1137 } 1138 1139 ret = hisi_qm_init(qm); 1140 if (ret) { 1141 pci_err(qm->pdev, "Failed to init sec qm configures!\n"); 1142 return ret; 1143 } 1144 1145 /* Fetch and save the value of capability registers */ 1146 ret = sec_pre_store_cap_reg(qm); 1147 if (ret) { 1148 pci_err(qm->pdev, "Failed to pre-store capability registers!\n"); 1149 hisi_qm_uninit(qm); 1150 return ret; 1151 } 1152 1153 alg_msk = sec_get_alg_bitmap(qm, SEC_DEV_ALG_BITMAP_HIGH_IDX, SEC_DEV_ALG_BITMAP_LOW_IDX); 1154 ret = hisi_qm_set_algs(qm, alg_msk, sec_dev_algs, ARRAY_SIZE(sec_dev_algs)); 1155 if (ret) { 1156 pci_err(qm->pdev, "Failed to set sec algs!\n"); 1157 hisi_qm_uninit(qm); 1158 } 1159 1160 return ret; 1161 } 1162 1163 static void sec_qm_uninit(struct hisi_qm *qm) 1164 { 1165 hisi_qm_uninit(qm); 1166 } 1167 1168 static int sec_probe_init(struct sec_dev *sec) 1169 { 1170 u32 type_rate = SEC_SHAPER_TYPE_RATE; 1171 struct hisi_qm *qm = &sec->qm; 1172 int ret; 1173 1174 if (qm->fun_type == QM_HW_PF) { 1175 ret = sec_pf_probe_init(sec); 1176 if (ret) 1177 return ret; 1178 /* enable shaper type 0 */ 1179 if (qm->ver >= QM_HW_V3) { 1180 type_rate |= QM_SHAPER_ENABLE; 1181 qm->type_rate = type_rate; 1182 } 1183 } 1184 1185 return 0; 1186 } 1187 1188 static void sec_probe_uninit(struct hisi_qm *qm) 1189 { 1190 hisi_qm_dev_err_uninit(qm); 1191 } 1192 1193 static void sec_iommu_used_check(struct sec_dev *sec) 1194 { 1195 struct iommu_domain *domain; 1196 struct device *dev = &sec->qm.pdev->dev; 1197 1198 domain = iommu_get_domain_for_dev(dev); 1199 1200 /* Check if iommu is used */ 1201 sec->iommu_used = false; 1202 if (domain) { 1203 if (domain->type & __IOMMU_DOMAIN_PAGING) 1204 sec->iommu_used = true; 1205 dev_info(dev, "SMMU Opened, the iommu type = %u\n", 1206 domain->type); 1207 } 1208 } 1209 1210 static int sec_probe(struct pci_dev *pdev, const struct pci_device_id *id) 1211 { 1212 struct sec_dev *sec; 1213 struct hisi_qm *qm; 1214 int ret; 1215 1216 sec = devm_kzalloc(&pdev->dev, sizeof(*sec), GFP_KERNEL); 1217 if (!sec) 1218 return -ENOMEM; 1219 1220 qm = &sec->qm; 1221 ret = sec_qm_init(qm, pdev); 1222 if (ret) { 1223 pci_err(pdev, "Failed to init SEC QM (%d)!\n", ret); 1224 return ret; 1225 } 1226 1227 sec->ctx_q_num = ctx_q_num; 1228 sec_iommu_used_check(sec); 1229 1230 ret = sec_probe_init(sec); 1231 if (ret) { 1232 pci_err(pdev, "Failed to probe!\n"); 1233 goto err_qm_uninit; 1234 } 1235 1236 ret = hisi_qm_start(qm); 1237 if (ret) { 1238 pci_err(pdev, "Failed to start sec qm!\n"); 1239 goto err_probe_uninit; 1240 } 1241 1242 ret = sec_debugfs_init(qm); 1243 if (ret) 1244 pci_warn(pdev, "Failed to init debugfs!\n"); 1245 1246 hisi_qm_add_list(qm, &sec_devices); 1247 ret = hisi_qm_alg_register(qm, &sec_devices, ctx_q_num); 1248 if (ret < 0) { 1249 pr_err("Failed to register driver to crypto.\n"); 1250 goto err_qm_del_list; 1251 } 1252 1253 if (qm->uacce) { 1254 ret = uacce_register(qm->uacce); 1255 if (ret) { 1256 pci_err(pdev, "failed to register uacce (%d)!\n", ret); 1257 goto err_alg_unregister; 1258 } 1259 } 1260 1261 if (qm->fun_type == QM_HW_PF && vfs_num) { 1262 ret = hisi_qm_sriov_enable(pdev, vfs_num); 1263 if (ret < 0) 1264 goto err_alg_unregister; 1265 } 1266 1267 hisi_qm_pm_init(qm); 1268 1269 return 0; 1270 1271 err_alg_unregister: 1272 hisi_qm_alg_unregister(qm, &sec_devices, ctx_q_num); 1273 err_qm_del_list: 1274 hisi_qm_del_list(qm, &sec_devices); 1275 sec_debugfs_exit(qm); 1276 hisi_qm_stop(qm, QM_NORMAL); 1277 err_probe_uninit: 1278 sec_show_last_regs_uninit(qm); 1279 sec_probe_uninit(qm); 1280 err_qm_uninit: 1281 sec_qm_uninit(qm); 1282 return ret; 1283 } 1284 1285 static void sec_remove(struct pci_dev *pdev) 1286 { 1287 struct hisi_qm *qm = pci_get_drvdata(pdev); 1288 1289 hisi_qm_pm_uninit(qm); 1290 hisi_qm_wait_task_finish(qm, &sec_devices); 1291 hisi_qm_alg_unregister(qm, &sec_devices, ctx_q_num); 1292 hisi_qm_del_list(qm, &sec_devices); 1293 1294 if (qm->fun_type == QM_HW_PF && qm->vfs_num) 1295 hisi_qm_sriov_disable(pdev, true); 1296 1297 sec_debugfs_exit(qm); 1298 1299 (void)hisi_qm_stop(qm, QM_NORMAL); 1300 1301 if (qm->fun_type == QM_HW_PF) 1302 sec_debug_regs_clear(qm); 1303 sec_show_last_regs_uninit(qm); 1304 1305 sec_probe_uninit(qm); 1306 1307 sec_qm_uninit(qm); 1308 } 1309 1310 static const struct dev_pm_ops sec_pm_ops = { 1311 SET_RUNTIME_PM_OPS(hisi_qm_suspend, hisi_qm_resume, NULL) 1312 }; 1313 1314 static const struct pci_error_handlers sec_err_handler = { 1315 .error_detected = hisi_qm_dev_err_detected, 1316 .slot_reset = hisi_qm_dev_slot_reset, 1317 .reset_prepare = hisi_qm_reset_prepare, 1318 .reset_done = hisi_qm_reset_done, 1319 }; 1320 1321 static struct pci_driver sec_pci_driver = { 1322 .name = "hisi_sec2", 1323 .id_table = sec_dev_ids, 1324 .probe = sec_probe, 1325 .remove = sec_remove, 1326 .err_handler = &sec_err_handler, 1327 .sriov_configure = hisi_qm_sriov_configure, 1328 .shutdown = hisi_qm_dev_shutdown, 1329 .driver.pm = &sec_pm_ops, 1330 }; 1331 1332 struct pci_driver *hisi_sec_get_pf_driver(void) 1333 { 1334 return &sec_pci_driver; 1335 } 1336 EXPORT_SYMBOL_GPL(hisi_sec_get_pf_driver); 1337 1338 static void sec_register_debugfs(void) 1339 { 1340 if (!debugfs_initialized()) 1341 return; 1342 1343 sec_debugfs_root = debugfs_create_dir("hisi_sec2", NULL); 1344 } 1345 1346 static void sec_unregister_debugfs(void) 1347 { 1348 debugfs_remove_recursive(sec_debugfs_root); 1349 } 1350 1351 static int __init sec_init(void) 1352 { 1353 int ret; 1354 1355 hisi_qm_init_list(&sec_devices); 1356 sec_register_debugfs(); 1357 1358 ret = pci_register_driver(&sec_pci_driver); 1359 if (ret < 0) { 1360 sec_unregister_debugfs(); 1361 pr_err("Failed to register pci driver.\n"); 1362 return ret; 1363 } 1364 1365 return 0; 1366 } 1367 1368 static void __exit sec_exit(void) 1369 { 1370 pci_unregister_driver(&sec_pci_driver); 1371 sec_unregister_debugfs(); 1372 } 1373 1374 module_init(sec_init); 1375 module_exit(sec_exit); 1376 1377 MODULE_LICENSE("GPL v2"); 1378 MODULE_AUTHOR("Zaibo Xu <xuzaibo@huawei.com>"); 1379 MODULE_AUTHOR("Longfang Liu <liulongfang@huawei.com>"); 1380 MODULE_AUTHOR("Kai Ye <yekai13@huawei.com>"); 1381 MODULE_AUTHOR("Wei Zhang <zhangwei375@huawei.com>"); 1382 MODULE_DESCRIPTION("Driver for HiSilicon SEC accelerator"); 1383