1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (c) 2018-2019 HiSilicon Limited. */ 3 #include <linux/acpi.h> 4 #include <linux/bitops.h> 5 #include <linux/debugfs.h> 6 #include <linux/init.h> 7 #include <linux/io.h> 8 #include <linux/kernel.h> 9 #include <linux/module.h> 10 #include <linux/pci.h> 11 #include <linux/pm_runtime.h> 12 #include <linux/topology.h> 13 #include <linux/uacce.h> 14 #include "hpre.h" 15 16 #define HPRE_QM_ABNML_INT_MASK 0x100004 17 #define HPRE_CTRL_CNT_CLR_CE_BIT BIT(0) 18 #define HPRE_COMM_CNT_CLR_CE 0x0 19 #define HPRE_CTRL_CNT_CLR_CE 0x301000 20 #define HPRE_FSM_MAX_CNT 0x301008 21 #define HPRE_VFG_AXQOS 0x30100c 22 #define HPRE_VFG_AXCACHE 0x301010 23 #define HPRE_RDCHN_INI_CFG 0x301014 24 #define HPRE_AWUSR_FP_CFG 0x301018 25 #define HPRE_BD_ENDIAN 0x301020 26 #define HPRE_ECC_BYPASS 0x301024 27 #define HPRE_RAS_WIDTH_CFG 0x301028 28 #define HPRE_POISON_BYPASS 0x30102c 29 #define HPRE_BD_ARUSR_CFG 0x301030 30 #define HPRE_BD_AWUSR_CFG 0x301034 31 #define HPRE_TYPES_ENB 0x301038 32 #define HPRE_RSA_ENB BIT(0) 33 #define HPRE_ECC_ENB BIT(1) 34 #define HPRE_DATA_RUSER_CFG 0x30103c 35 #define HPRE_DATA_WUSER_CFG 0x301040 36 #define HPRE_INT_MASK 0x301400 37 #define HPRE_INT_STATUS 0x301800 38 #define HPRE_HAC_INT_MSK 0x301400 39 #define HPRE_HAC_RAS_CE_ENB 0x301410 40 #define HPRE_HAC_RAS_NFE_ENB 0x301414 41 #define HPRE_HAC_RAS_FE_ENB 0x301418 42 #define HPRE_HAC_INT_SET 0x301500 43 #define HPRE_RNG_TIMEOUT_NUM 0x301A34 44 #define HPRE_CORE_INT_ENABLE 0 45 #define HPRE_CORE_INT_DISABLE GENMASK(21, 0) 46 #define HPRE_RDCHN_INI_ST 0x301a00 47 #define HPRE_CLSTR_BASE 0x302000 48 #define HPRE_CORE_EN_OFFSET 0x04 49 #define HPRE_CORE_INI_CFG_OFFSET 0x20 50 #define HPRE_CORE_INI_STATUS_OFFSET 0x80 51 #define HPRE_CORE_HTBT_WARN_OFFSET 0x8c 52 #define HPRE_CORE_IS_SCHD_OFFSET 0x90 53 54 #define HPRE_RAS_CE_ENB 0x301410 55 #define HPRE_RAS_NFE_ENB 0x301414 56 #define HPRE_RAS_FE_ENB 0x301418 57 #define HPRE_OOO_SHUTDOWN_SEL 0x301a3c 58 #define HPRE_HAC_RAS_FE_ENABLE 0 59 60 #define HPRE_CORE_ENB (HPRE_CLSTR_BASE + HPRE_CORE_EN_OFFSET) 61 #define HPRE_CORE_INI_CFG (HPRE_CLSTR_BASE + HPRE_CORE_INI_CFG_OFFSET) 62 #define HPRE_CORE_INI_STATUS (HPRE_CLSTR_BASE + HPRE_CORE_INI_STATUS_OFFSET) 63 #define HPRE_HAC_ECC1_CNT 0x301a04 64 #define HPRE_HAC_ECC2_CNT 0x301a08 65 #define HPRE_HAC_SOURCE_INT 0x301600 66 #define HPRE_CLSTR_ADDR_INTRVL 0x1000 67 #define HPRE_CLUSTER_INQURY 0x100 68 #define HPRE_CLSTR_ADDR_INQRY_RSLT 0x104 69 #define HPRE_TIMEOUT_ABNML_BIT 6 70 #define HPRE_PASID_EN_BIT 9 71 #define HPRE_REG_RD_INTVRL_US 10 72 #define HPRE_REG_RD_TMOUT_US 1000 73 #define HPRE_DBGFS_VAL_MAX_LEN 20 74 #define PCI_DEVICE_ID_HUAWEI_HPRE_PF 0xa258 75 #define HPRE_QM_USR_CFG_MASK GENMASK(31, 1) 76 #define HPRE_QM_AXI_CFG_MASK GENMASK(15, 0) 77 #define HPRE_QM_VFG_AX_MASK GENMASK(7, 0) 78 #define HPRE_BD_USR_MASK GENMASK(1, 0) 79 #define HPRE_PREFETCH_CFG 0x301130 80 #define HPRE_SVA_PREFTCH_DFX 0x30115C 81 #define HPRE_PREFETCH_ENABLE (~(BIT(0) | BIT(30))) 82 #define HPRE_PREFETCH_DISABLE BIT(30) 83 #define HPRE_SVA_DISABLE_READY (BIT(4) | BIT(8)) 84 85 /* clock gate */ 86 #define HPRE_CLKGATE_CTL 0x301a10 87 #define HPRE_PEH_CFG_AUTO_GATE 0x301a2c 88 #define HPRE_CLUSTER_DYN_CTL 0x302010 89 #define HPRE_CORE_SHB_CFG 0x302088 90 #define HPRE_CLKGATE_CTL_EN BIT(0) 91 #define HPRE_PEH_CFG_AUTO_GATE_EN BIT(0) 92 #define HPRE_CLUSTER_DYN_CTL_EN BIT(0) 93 #define HPRE_CORE_GATE_EN (BIT(30) | BIT(31)) 94 95 #define HPRE_AM_OOO_SHUTDOWN_ENB 0x301044 96 #define HPRE_AM_OOO_SHUTDOWN_ENABLE BIT(0) 97 #define HPRE_WR_MSI_PORT BIT(2) 98 99 #define HPRE_CORE_ECC_2BIT_ERR BIT(1) 100 #define HPRE_OOO_ECC_2BIT_ERR BIT(5) 101 102 #define HPRE_QM_BME_FLR BIT(7) 103 #define HPRE_QM_PM_FLR BIT(11) 104 #define HPRE_QM_SRIOV_FLR BIT(12) 105 106 #define HPRE_SHAPER_TYPE_RATE 640 107 #define HPRE_VIA_MSI_DSM 1 108 #define HPRE_SQE_MASK_OFFSET 8 109 #define HPRE_SQE_MASK_LEN 24 110 111 #define HPRE_DFX_BASE 0x301000 112 #define HPRE_DFX_COMMON1 0x301400 113 #define HPRE_DFX_COMMON2 0x301A00 114 #define HPRE_DFX_CORE 0x302000 115 #define HPRE_DFX_BASE_LEN 0x55 116 #define HPRE_DFX_COMMON1_LEN 0x41 117 #define HPRE_DFX_COMMON2_LEN 0xE 118 #define HPRE_DFX_CORE_LEN 0x43 119 120 static const char hpre_name[] = "hisi_hpre"; 121 static struct dentry *hpre_debugfs_root; 122 static const struct pci_device_id hpre_dev_ids[] = { 123 { PCI_DEVICE(PCI_VENDOR_ID_HUAWEI, PCI_DEVICE_ID_HUAWEI_HPRE_PF) }, 124 { PCI_DEVICE(PCI_VENDOR_ID_HUAWEI, PCI_DEVICE_ID_HUAWEI_HPRE_VF) }, 125 { 0, } 126 }; 127 128 MODULE_DEVICE_TABLE(pci, hpre_dev_ids); 129 130 struct hpre_hw_error { 131 u32 int_msk; 132 const char *msg; 133 }; 134 135 static const struct qm_dev_alg hpre_dev_algs[] = { 136 { 137 .alg_msk = BIT(0), 138 .alg = "rsa\n" 139 }, { 140 .alg_msk = BIT(1), 141 .alg = "dh\n" 142 }, { 143 .alg_msk = BIT(2), 144 .alg = "ecdh\n" 145 }, { 146 .alg_msk = BIT(3), 147 .alg = "ecdsa\n" 148 }, { 149 .alg_msk = BIT(4), 150 .alg = "sm2\n" 151 }, { 152 .alg_msk = BIT(5), 153 .alg = "x25519\n" 154 }, { 155 .alg_msk = BIT(6), 156 .alg = "x448\n" 157 }, { 158 /* sentinel */ 159 } 160 }; 161 162 static struct hisi_qm_list hpre_devices = { 163 .register_to_crypto = hpre_algs_register, 164 .unregister_from_crypto = hpre_algs_unregister, 165 }; 166 167 static const char * const hpre_debug_file_name[] = { 168 [HPRE_CLEAR_ENABLE] = "rdclr_en", 169 [HPRE_CLUSTER_CTRL] = "cluster_ctrl", 170 }; 171 172 enum hpre_cap_type { 173 HPRE_QM_NFE_MASK_CAP, 174 HPRE_QM_RESET_MASK_CAP, 175 HPRE_QM_OOO_SHUTDOWN_MASK_CAP, 176 HPRE_QM_CE_MASK_CAP, 177 HPRE_NFE_MASK_CAP, 178 HPRE_RESET_MASK_CAP, 179 HPRE_OOO_SHUTDOWN_MASK_CAP, 180 HPRE_CE_MASK_CAP, 181 HPRE_CLUSTER_NUM_CAP, 182 HPRE_CORE_TYPE_NUM_CAP, 183 HPRE_CORE_NUM_CAP, 184 HPRE_CLUSTER_CORE_NUM_CAP, 185 HPRE_CORE_ENABLE_BITMAP_CAP, 186 HPRE_DRV_ALG_BITMAP_CAP, 187 HPRE_DEV_ALG_BITMAP_CAP, 188 HPRE_CORE1_ALG_BITMAP_CAP, 189 HPRE_CORE2_ALG_BITMAP_CAP, 190 HPRE_CORE3_ALG_BITMAP_CAP, 191 HPRE_CORE4_ALG_BITMAP_CAP, 192 HPRE_CORE5_ALG_BITMAP_CAP, 193 HPRE_CORE6_ALG_BITMAP_CAP, 194 HPRE_CORE7_ALG_BITMAP_CAP, 195 HPRE_CORE8_ALG_BITMAP_CAP, 196 HPRE_CORE9_ALG_BITMAP_CAP, 197 HPRE_CORE10_ALG_BITMAP_CAP 198 }; 199 200 static const struct hisi_qm_cap_info hpre_basic_info[] = { 201 {HPRE_QM_NFE_MASK_CAP, 0x3124, 0, GENMASK(31, 0), 0x0, 0x1C37, 0x7C37}, 202 {HPRE_QM_RESET_MASK_CAP, 0x3128, 0, GENMASK(31, 0), 0x0, 0xC37, 0x6C37}, 203 {HPRE_QM_OOO_SHUTDOWN_MASK_CAP, 0x3128, 0, GENMASK(31, 0), 0x0, 0x4, 0x6C37}, 204 {HPRE_QM_CE_MASK_CAP, 0x312C, 0, GENMASK(31, 0), 0x0, 0x8, 0x8}, 205 {HPRE_NFE_MASK_CAP, 0x3130, 0, GENMASK(31, 0), 0x0, 0x3FFFFE, 0x1FFFFFE}, 206 {HPRE_RESET_MASK_CAP, 0x3134, 0, GENMASK(31, 0), 0x0, 0x3FFFFE, 0xBFFFFE}, 207 {HPRE_OOO_SHUTDOWN_MASK_CAP, 0x3134, 0, GENMASK(31, 0), 0x0, 0x22, 0xBFFFFE}, 208 {HPRE_CE_MASK_CAP, 0x3138, 0, GENMASK(31, 0), 0x0, 0x1, 0x1}, 209 {HPRE_CLUSTER_NUM_CAP, 0x313c, 20, GENMASK(3, 0), 0x0, 0x4, 0x1}, 210 {HPRE_CORE_TYPE_NUM_CAP, 0x313c, 16, GENMASK(3, 0), 0x0, 0x2, 0x2}, 211 {HPRE_CORE_NUM_CAP, 0x313c, 8, GENMASK(7, 0), 0x0, 0x8, 0xA}, 212 {HPRE_CLUSTER_CORE_NUM_CAP, 0x313c, 0, GENMASK(7, 0), 0x0, 0x2, 0xA}, 213 {HPRE_CORE_ENABLE_BITMAP_CAP, 0x3140, 0, GENMASK(31, 0), 0x0, 0xF, 0x3FF}, 214 {HPRE_DRV_ALG_BITMAP_CAP, 0x3144, 0, GENMASK(31, 0), 0x0, 0x03, 0x27}, 215 {HPRE_DEV_ALG_BITMAP_CAP, 0x3148, 0, GENMASK(31, 0), 0x0, 0x03, 0x7F}, 216 {HPRE_CORE1_ALG_BITMAP_CAP, 0x314c, 0, GENMASK(31, 0), 0x0, 0x7F, 0x7F}, 217 {HPRE_CORE2_ALG_BITMAP_CAP, 0x3150, 0, GENMASK(31, 0), 0x0, 0x7F, 0x7F}, 218 {HPRE_CORE3_ALG_BITMAP_CAP, 0x3154, 0, GENMASK(31, 0), 0x0, 0x7F, 0x7F}, 219 {HPRE_CORE4_ALG_BITMAP_CAP, 0x3158, 0, GENMASK(31, 0), 0x0, 0x7F, 0x7F}, 220 {HPRE_CORE5_ALG_BITMAP_CAP, 0x315c, 0, GENMASK(31, 0), 0x0, 0x7F, 0x7F}, 221 {HPRE_CORE6_ALG_BITMAP_CAP, 0x3160, 0, GENMASK(31, 0), 0x0, 0x7F, 0x7F}, 222 {HPRE_CORE7_ALG_BITMAP_CAP, 0x3164, 0, GENMASK(31, 0), 0x0, 0x7F, 0x7F}, 223 {HPRE_CORE8_ALG_BITMAP_CAP, 0x3168, 0, GENMASK(31, 0), 0x0, 0x7F, 0x7F}, 224 {HPRE_CORE9_ALG_BITMAP_CAP, 0x316c, 0, GENMASK(31, 0), 0x0, 0x10, 0x10}, 225 {HPRE_CORE10_ALG_BITMAP_CAP, 0x3170, 0, GENMASK(31, 0), 0x0, 0x10, 0x10} 226 }; 227 228 enum hpre_pre_store_cap_idx { 229 HPRE_CLUSTER_NUM_CAP_IDX = 0x0, 230 HPRE_CORE_ENABLE_BITMAP_CAP_IDX, 231 HPRE_DRV_ALG_BITMAP_CAP_IDX, 232 HPRE_DEV_ALG_BITMAP_CAP_IDX, 233 }; 234 235 static const u32 hpre_pre_store_caps[] = { 236 HPRE_CLUSTER_NUM_CAP, 237 HPRE_CORE_ENABLE_BITMAP_CAP, 238 HPRE_DRV_ALG_BITMAP_CAP, 239 HPRE_DEV_ALG_BITMAP_CAP, 240 }; 241 242 static const struct hpre_hw_error hpre_hw_errors[] = { 243 { 244 .int_msk = BIT(0), 245 .msg = "core_ecc_1bit_err_int_set" 246 }, { 247 .int_msk = BIT(1), 248 .msg = "core_ecc_2bit_err_int_set" 249 }, { 250 .int_msk = BIT(2), 251 .msg = "dat_wb_poison_int_set" 252 }, { 253 .int_msk = BIT(3), 254 .msg = "dat_rd_poison_int_set" 255 }, { 256 .int_msk = BIT(4), 257 .msg = "bd_rd_poison_int_set" 258 }, { 259 .int_msk = BIT(5), 260 .msg = "ooo_ecc_2bit_err_int_set" 261 }, { 262 .int_msk = BIT(6), 263 .msg = "cluster1_shb_timeout_int_set" 264 }, { 265 .int_msk = BIT(7), 266 .msg = "cluster2_shb_timeout_int_set" 267 }, { 268 .int_msk = BIT(8), 269 .msg = "cluster3_shb_timeout_int_set" 270 }, { 271 .int_msk = BIT(9), 272 .msg = "cluster4_shb_timeout_int_set" 273 }, { 274 .int_msk = GENMASK(15, 10), 275 .msg = "ooo_rdrsp_err_int_set" 276 }, { 277 .int_msk = GENMASK(21, 16), 278 .msg = "ooo_wrrsp_err_int_set" 279 }, { 280 .int_msk = BIT(22), 281 .msg = "pt_rng_timeout_int_set" 282 }, { 283 .int_msk = BIT(23), 284 .msg = "sva_fsm_timeout_int_set" 285 }, { 286 .int_msk = BIT(24), 287 .msg = "sva_int_set" 288 }, { 289 /* sentinel */ 290 } 291 }; 292 293 static const u64 hpre_cluster_offsets[] = { 294 [HPRE_CLUSTER0] = 295 HPRE_CLSTR_BASE + HPRE_CLUSTER0 * HPRE_CLSTR_ADDR_INTRVL, 296 [HPRE_CLUSTER1] = 297 HPRE_CLSTR_BASE + HPRE_CLUSTER1 * HPRE_CLSTR_ADDR_INTRVL, 298 [HPRE_CLUSTER2] = 299 HPRE_CLSTR_BASE + HPRE_CLUSTER2 * HPRE_CLSTR_ADDR_INTRVL, 300 [HPRE_CLUSTER3] = 301 HPRE_CLSTR_BASE + HPRE_CLUSTER3 * HPRE_CLSTR_ADDR_INTRVL, 302 }; 303 304 static const struct debugfs_reg32 hpre_cluster_dfx_regs[] = { 305 {"CORES_EN_STATUS ", HPRE_CORE_EN_OFFSET}, 306 {"CORES_INI_CFG ", HPRE_CORE_INI_CFG_OFFSET}, 307 {"CORES_INI_STATUS ", HPRE_CORE_INI_STATUS_OFFSET}, 308 {"CORES_HTBT_WARN ", HPRE_CORE_HTBT_WARN_OFFSET}, 309 {"CORES_IS_SCHD ", HPRE_CORE_IS_SCHD_OFFSET}, 310 }; 311 312 static const struct debugfs_reg32 hpre_com_dfx_regs[] = { 313 {"READ_CLR_EN ", HPRE_CTRL_CNT_CLR_CE}, 314 {"AXQOS ", HPRE_VFG_AXQOS}, 315 {"AWUSR_CFG ", HPRE_AWUSR_FP_CFG}, 316 {"BD_ENDIAN ", HPRE_BD_ENDIAN}, 317 {"ECC_CHECK_CTRL ", HPRE_ECC_BYPASS}, 318 {"RAS_INT_WIDTH ", HPRE_RAS_WIDTH_CFG}, 319 {"POISON_BYPASS ", HPRE_POISON_BYPASS}, 320 {"BD_ARUSER ", HPRE_BD_ARUSR_CFG}, 321 {"BD_AWUSER ", HPRE_BD_AWUSR_CFG}, 322 {"DATA_ARUSER ", HPRE_DATA_RUSER_CFG}, 323 {"DATA_AWUSER ", HPRE_DATA_WUSER_CFG}, 324 {"INT_STATUS ", HPRE_INT_STATUS}, 325 {"INT_MASK ", HPRE_HAC_INT_MSK}, 326 {"RAS_CE_ENB ", HPRE_HAC_RAS_CE_ENB}, 327 {"RAS_NFE_ENB ", HPRE_HAC_RAS_NFE_ENB}, 328 {"RAS_FE_ENB ", HPRE_HAC_RAS_FE_ENB}, 329 {"INT_SET ", HPRE_HAC_INT_SET}, 330 {"RNG_TIMEOUT_NUM ", HPRE_RNG_TIMEOUT_NUM}, 331 }; 332 333 static const char *hpre_dfx_files[HPRE_DFX_FILE_NUM] = { 334 "send_cnt", 335 "recv_cnt", 336 "send_fail_cnt", 337 "send_busy_cnt", 338 "over_thrhld_cnt", 339 "overtime_thrhld", 340 "invalid_req_cnt" 341 }; 342 343 /* define the HPRE's dfx regs region and region length */ 344 static struct dfx_diff_registers hpre_diff_regs[] = { 345 { 346 .reg_offset = HPRE_DFX_BASE, 347 .reg_len = HPRE_DFX_BASE_LEN, 348 }, { 349 .reg_offset = HPRE_DFX_COMMON1, 350 .reg_len = HPRE_DFX_COMMON1_LEN, 351 }, { 352 .reg_offset = HPRE_DFX_COMMON2, 353 .reg_len = HPRE_DFX_COMMON2_LEN, 354 }, { 355 .reg_offset = HPRE_DFX_CORE, 356 .reg_len = HPRE_DFX_CORE_LEN, 357 }, 358 }; 359 360 bool hpre_check_alg_support(struct hisi_qm *qm, u32 alg) 361 { 362 u32 cap_val; 363 364 cap_val = qm->cap_tables.dev_cap_table[HPRE_DRV_ALG_BITMAP_CAP_IDX].cap_val; 365 if (alg & cap_val) 366 return true; 367 368 return false; 369 } 370 371 static int hpre_diff_regs_show(struct seq_file *s, void *unused) 372 { 373 struct hisi_qm *qm = s->private; 374 375 hisi_qm_acc_diff_regs_dump(qm, s, qm->debug.acc_diff_regs, 376 ARRAY_SIZE(hpre_diff_regs)); 377 378 return 0; 379 } 380 381 DEFINE_SHOW_ATTRIBUTE(hpre_diff_regs); 382 383 static int hpre_com_regs_show(struct seq_file *s, void *unused) 384 { 385 hisi_qm_regs_dump(s, s->private); 386 387 return 0; 388 } 389 390 DEFINE_SHOW_ATTRIBUTE(hpre_com_regs); 391 392 static int hpre_cluster_regs_show(struct seq_file *s, void *unused) 393 { 394 hisi_qm_regs_dump(s, s->private); 395 396 return 0; 397 } 398 399 DEFINE_SHOW_ATTRIBUTE(hpre_cluster_regs); 400 401 static const struct kernel_param_ops hpre_uacce_mode_ops = { 402 .set = uacce_mode_set, 403 .get = param_get_int, 404 }; 405 406 /* 407 * uacce_mode = 0 means hpre only register to crypto, 408 * uacce_mode = 1 means hpre both register to crypto and uacce. 409 */ 410 static u32 uacce_mode = UACCE_MODE_NOUACCE; 411 module_param_cb(uacce_mode, &hpre_uacce_mode_ops, &uacce_mode, 0444); 412 MODULE_PARM_DESC(uacce_mode, UACCE_MODE_DESC); 413 414 static bool pf_q_num_flag; 415 static int pf_q_num_set(const char *val, const struct kernel_param *kp) 416 { 417 pf_q_num_flag = true; 418 419 return q_num_set(val, kp, PCI_DEVICE_ID_HUAWEI_HPRE_PF); 420 } 421 422 static const struct kernel_param_ops hpre_pf_q_num_ops = { 423 .set = pf_q_num_set, 424 .get = param_get_int, 425 }; 426 427 static u32 pf_q_num = HPRE_PF_DEF_Q_NUM; 428 module_param_cb(pf_q_num, &hpre_pf_q_num_ops, &pf_q_num, 0444); 429 MODULE_PARM_DESC(pf_q_num, "Number of queues in PF of CS(2-1024)"); 430 431 static const struct kernel_param_ops vfs_num_ops = { 432 .set = vfs_num_set, 433 .get = param_get_int, 434 }; 435 436 static u32 vfs_num; 437 module_param_cb(vfs_num, &vfs_num_ops, &vfs_num, 0444); 438 MODULE_PARM_DESC(vfs_num, "Number of VFs to enable(1-63), 0(default)"); 439 440 struct hisi_qp *hpre_create_qp(u8 type) 441 { 442 int node = cpu_to_node(smp_processor_id()); 443 struct hisi_qp *qp = NULL; 444 int ret; 445 446 if (type != HPRE_V2_ALG_TYPE && type != HPRE_V3_ECC_ALG_TYPE) 447 return NULL; 448 449 /* 450 * type: 0 - RSA/DH. algorithm supported in V2, 451 * 1 - ECC algorithm in V3. 452 */ 453 ret = hisi_qm_alloc_qps_node(&hpre_devices, 1, type, node, &qp); 454 if (!ret) 455 return qp; 456 457 return NULL; 458 } 459 460 static void hpre_config_pasid(struct hisi_qm *qm) 461 { 462 u32 val1, val2; 463 464 if (qm->ver >= QM_HW_V3) 465 return; 466 467 val1 = readl_relaxed(qm->io_base + HPRE_DATA_RUSER_CFG); 468 val2 = readl_relaxed(qm->io_base + HPRE_DATA_WUSER_CFG); 469 if (qm->use_sva) { 470 val1 |= BIT(HPRE_PASID_EN_BIT); 471 val2 |= BIT(HPRE_PASID_EN_BIT); 472 } else { 473 val1 &= ~BIT(HPRE_PASID_EN_BIT); 474 val2 &= ~BIT(HPRE_PASID_EN_BIT); 475 } 476 writel_relaxed(val1, qm->io_base + HPRE_DATA_RUSER_CFG); 477 writel_relaxed(val2, qm->io_base + HPRE_DATA_WUSER_CFG); 478 } 479 480 static int hpre_cfg_by_dsm(struct hisi_qm *qm) 481 { 482 struct device *dev = &qm->pdev->dev; 483 union acpi_object *obj; 484 guid_t guid; 485 486 if (guid_parse("b06b81ab-0134-4a45-9b0c-483447b95fa7", &guid)) { 487 dev_err(dev, "Hpre GUID failed\n"); 488 return -EINVAL; 489 } 490 491 /* Switch over to MSI handling due to non-standard PCI implementation */ 492 obj = acpi_evaluate_dsm(ACPI_HANDLE(dev), &guid, 493 0, HPRE_VIA_MSI_DSM, NULL); 494 if (!obj) { 495 dev_err(dev, "ACPI handle failed!\n"); 496 return -EIO; 497 } 498 499 ACPI_FREE(obj); 500 501 return 0; 502 } 503 504 static int hpre_set_cluster(struct hisi_qm *qm) 505 { 506 struct device *dev = &qm->pdev->dev; 507 unsigned long offset; 508 u32 cluster_core_mask; 509 u8 clusters_num; 510 u32 val = 0; 511 int ret, i; 512 513 cluster_core_mask = qm->cap_tables.dev_cap_table[HPRE_CORE_ENABLE_BITMAP_CAP_IDX].cap_val; 514 clusters_num = qm->cap_tables.dev_cap_table[HPRE_CLUSTER_NUM_CAP_IDX].cap_val; 515 for (i = 0; i < clusters_num; i++) { 516 offset = i * HPRE_CLSTR_ADDR_INTRVL; 517 518 /* clusters initiating */ 519 writel(cluster_core_mask, 520 qm->io_base + offset + HPRE_CORE_ENB); 521 writel(0x1, qm->io_base + offset + HPRE_CORE_INI_CFG); 522 ret = readl_relaxed_poll_timeout(qm->io_base + offset + 523 HPRE_CORE_INI_STATUS, val, 524 ((val & cluster_core_mask) == 525 cluster_core_mask), 526 HPRE_REG_RD_INTVRL_US, 527 HPRE_REG_RD_TMOUT_US); 528 if (ret) { 529 dev_err(dev, 530 "cluster %d int st status timeout!\n", i); 531 return -ETIMEDOUT; 532 } 533 } 534 535 return 0; 536 } 537 538 /* 539 * For Kunpeng 920, we should disable FLR triggered by hardware (BME/PM/SRIOV). 540 * Or it may stay in D3 state when we bind and unbind hpre quickly, 541 * as it does FLR triggered by hardware. 542 */ 543 static void disable_flr_of_bme(struct hisi_qm *qm) 544 { 545 u32 val; 546 547 val = readl(qm->io_base + QM_PEH_AXUSER_CFG); 548 val &= ~(HPRE_QM_BME_FLR | HPRE_QM_SRIOV_FLR); 549 val |= HPRE_QM_PM_FLR; 550 writel(val, qm->io_base + QM_PEH_AXUSER_CFG); 551 writel(PEH_AXUSER_CFG_ENABLE, qm->io_base + QM_PEH_AXUSER_CFG_ENABLE); 552 } 553 554 static void hpre_open_sva_prefetch(struct hisi_qm *qm) 555 { 556 u32 val; 557 int ret; 558 559 if (!test_bit(QM_SUPPORT_SVA_PREFETCH, &qm->caps)) 560 return; 561 562 /* Enable prefetch */ 563 val = readl_relaxed(qm->io_base + HPRE_PREFETCH_CFG); 564 val &= HPRE_PREFETCH_ENABLE; 565 writel(val, qm->io_base + HPRE_PREFETCH_CFG); 566 567 ret = readl_relaxed_poll_timeout(qm->io_base + HPRE_PREFETCH_CFG, 568 val, !(val & HPRE_PREFETCH_DISABLE), 569 HPRE_REG_RD_INTVRL_US, 570 HPRE_REG_RD_TMOUT_US); 571 if (ret) 572 pci_err(qm->pdev, "failed to open sva prefetch\n"); 573 } 574 575 static void hpre_close_sva_prefetch(struct hisi_qm *qm) 576 { 577 u32 val; 578 int ret; 579 580 if (!test_bit(QM_SUPPORT_SVA_PREFETCH, &qm->caps)) 581 return; 582 583 val = readl_relaxed(qm->io_base + HPRE_PREFETCH_CFG); 584 val |= HPRE_PREFETCH_DISABLE; 585 writel(val, qm->io_base + HPRE_PREFETCH_CFG); 586 587 ret = readl_relaxed_poll_timeout(qm->io_base + HPRE_SVA_PREFTCH_DFX, 588 val, !(val & HPRE_SVA_DISABLE_READY), 589 HPRE_REG_RD_INTVRL_US, 590 HPRE_REG_RD_TMOUT_US); 591 if (ret) 592 pci_err(qm->pdev, "failed to close sva prefetch\n"); 593 } 594 595 static void hpre_enable_clock_gate(struct hisi_qm *qm) 596 { 597 u32 val; 598 599 if (qm->ver < QM_HW_V3) 600 return; 601 602 val = readl(qm->io_base + HPRE_CLKGATE_CTL); 603 val |= HPRE_CLKGATE_CTL_EN; 604 writel(val, qm->io_base + HPRE_CLKGATE_CTL); 605 606 val = readl(qm->io_base + HPRE_PEH_CFG_AUTO_GATE); 607 val |= HPRE_PEH_CFG_AUTO_GATE_EN; 608 writel(val, qm->io_base + HPRE_PEH_CFG_AUTO_GATE); 609 610 val = readl(qm->io_base + HPRE_CLUSTER_DYN_CTL); 611 val |= HPRE_CLUSTER_DYN_CTL_EN; 612 writel(val, qm->io_base + HPRE_CLUSTER_DYN_CTL); 613 614 val = readl_relaxed(qm->io_base + HPRE_CORE_SHB_CFG); 615 val |= HPRE_CORE_GATE_EN; 616 writel(val, qm->io_base + HPRE_CORE_SHB_CFG); 617 } 618 619 static void hpre_disable_clock_gate(struct hisi_qm *qm) 620 { 621 u32 val; 622 623 if (qm->ver < QM_HW_V3) 624 return; 625 626 val = readl(qm->io_base + HPRE_CLKGATE_CTL); 627 val &= ~HPRE_CLKGATE_CTL_EN; 628 writel(val, qm->io_base + HPRE_CLKGATE_CTL); 629 630 val = readl(qm->io_base + HPRE_PEH_CFG_AUTO_GATE); 631 val &= ~HPRE_PEH_CFG_AUTO_GATE_EN; 632 writel(val, qm->io_base + HPRE_PEH_CFG_AUTO_GATE); 633 634 val = readl(qm->io_base + HPRE_CLUSTER_DYN_CTL); 635 val &= ~HPRE_CLUSTER_DYN_CTL_EN; 636 writel(val, qm->io_base + HPRE_CLUSTER_DYN_CTL); 637 638 val = readl_relaxed(qm->io_base + HPRE_CORE_SHB_CFG); 639 val &= ~HPRE_CORE_GATE_EN; 640 writel(val, qm->io_base + HPRE_CORE_SHB_CFG); 641 } 642 643 static int hpre_set_user_domain_and_cache(struct hisi_qm *qm) 644 { 645 struct device *dev = &qm->pdev->dev; 646 u32 val; 647 int ret; 648 649 /* disabel dynamic clock gate before sram init */ 650 hpre_disable_clock_gate(qm); 651 652 writel(HPRE_QM_USR_CFG_MASK, qm->io_base + QM_ARUSER_M_CFG_ENABLE); 653 writel(HPRE_QM_USR_CFG_MASK, qm->io_base + QM_AWUSER_M_CFG_ENABLE); 654 writel_relaxed(HPRE_QM_AXI_CFG_MASK, qm->io_base + QM_AXI_M_CFG); 655 656 /* HPRE need more time, we close this interrupt */ 657 val = readl_relaxed(qm->io_base + HPRE_QM_ABNML_INT_MASK); 658 val |= BIT(HPRE_TIMEOUT_ABNML_BIT); 659 writel_relaxed(val, qm->io_base + HPRE_QM_ABNML_INT_MASK); 660 661 if (qm->ver >= QM_HW_V3) 662 writel(HPRE_RSA_ENB | HPRE_ECC_ENB, 663 qm->io_base + HPRE_TYPES_ENB); 664 else 665 writel(HPRE_RSA_ENB, qm->io_base + HPRE_TYPES_ENB); 666 667 writel(HPRE_QM_VFG_AX_MASK, qm->io_base + HPRE_VFG_AXCACHE); 668 writel(0x0, qm->io_base + HPRE_BD_ENDIAN); 669 writel(0x0, qm->io_base + HPRE_INT_MASK); 670 writel(0x0, qm->io_base + HPRE_POISON_BYPASS); 671 writel(0x0, qm->io_base + HPRE_COMM_CNT_CLR_CE); 672 writel(0x0, qm->io_base + HPRE_ECC_BYPASS); 673 674 writel(HPRE_BD_USR_MASK, qm->io_base + HPRE_BD_ARUSR_CFG); 675 writel(HPRE_BD_USR_MASK, qm->io_base + HPRE_BD_AWUSR_CFG); 676 writel(0x1, qm->io_base + HPRE_RDCHN_INI_CFG); 677 ret = readl_relaxed_poll_timeout(qm->io_base + HPRE_RDCHN_INI_ST, val, 678 val & BIT(0), 679 HPRE_REG_RD_INTVRL_US, 680 HPRE_REG_RD_TMOUT_US); 681 if (ret) { 682 dev_err(dev, "read rd channel timeout fail!\n"); 683 return -ETIMEDOUT; 684 } 685 686 ret = hpre_set_cluster(qm); 687 if (ret) 688 return -ETIMEDOUT; 689 690 /* This setting is only needed by Kunpeng 920. */ 691 if (qm->ver == QM_HW_V2) { 692 ret = hpre_cfg_by_dsm(qm); 693 if (ret) 694 return ret; 695 696 disable_flr_of_bme(qm); 697 } 698 699 /* Config data buffer pasid needed by Kunpeng 920 */ 700 hpre_config_pasid(qm); 701 702 hpre_enable_clock_gate(qm); 703 704 return ret; 705 } 706 707 static void hpre_cnt_regs_clear(struct hisi_qm *qm) 708 { 709 unsigned long offset; 710 u8 clusters_num; 711 int i; 712 713 /* clear clusterX/cluster_ctrl */ 714 clusters_num = qm->cap_tables.dev_cap_table[HPRE_CLUSTER_NUM_CAP_IDX].cap_val; 715 for (i = 0; i < clusters_num; i++) { 716 offset = HPRE_CLSTR_BASE + i * HPRE_CLSTR_ADDR_INTRVL; 717 writel(0x0, qm->io_base + offset + HPRE_CLUSTER_INQURY); 718 } 719 720 /* clear rdclr_en */ 721 writel(0x0, qm->io_base + HPRE_CTRL_CNT_CLR_CE); 722 723 hisi_qm_debug_regs_clear(qm); 724 } 725 726 static void hpre_master_ooo_ctrl(struct hisi_qm *qm, bool enable) 727 { 728 u32 val1, val2; 729 730 val1 = readl(qm->io_base + HPRE_AM_OOO_SHUTDOWN_ENB); 731 if (enable) { 732 val1 |= HPRE_AM_OOO_SHUTDOWN_ENABLE; 733 val2 = hisi_qm_get_hw_info(qm, hpre_basic_info, 734 HPRE_OOO_SHUTDOWN_MASK_CAP, qm->cap_ver); 735 } else { 736 val1 &= ~HPRE_AM_OOO_SHUTDOWN_ENABLE; 737 val2 = 0x0; 738 } 739 740 if (qm->ver > QM_HW_V2) 741 writel(val2, qm->io_base + HPRE_OOO_SHUTDOWN_SEL); 742 743 writel(val1, qm->io_base + HPRE_AM_OOO_SHUTDOWN_ENB); 744 } 745 746 static void hpre_hw_error_disable(struct hisi_qm *qm) 747 { 748 u32 ce, nfe; 749 750 ce = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_CE_MASK_CAP, qm->cap_ver); 751 nfe = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_NFE_MASK_CAP, qm->cap_ver); 752 753 /* disable hpre hw error interrupts */ 754 writel(ce | nfe | HPRE_HAC_RAS_FE_ENABLE, qm->io_base + HPRE_INT_MASK); 755 /* disable HPRE block master OOO when nfe occurs on Kunpeng930 */ 756 hpre_master_ooo_ctrl(qm, false); 757 } 758 759 static void hpre_hw_error_enable(struct hisi_qm *qm) 760 { 761 u32 ce, nfe; 762 763 ce = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_CE_MASK_CAP, qm->cap_ver); 764 nfe = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_NFE_MASK_CAP, qm->cap_ver); 765 766 /* clear HPRE hw error source if having */ 767 writel(ce | nfe | HPRE_HAC_RAS_FE_ENABLE, qm->io_base + HPRE_HAC_SOURCE_INT); 768 769 /* configure error type */ 770 writel(ce, qm->io_base + HPRE_RAS_CE_ENB); 771 writel(nfe, qm->io_base + HPRE_RAS_NFE_ENB); 772 writel(HPRE_HAC_RAS_FE_ENABLE, qm->io_base + HPRE_RAS_FE_ENB); 773 774 /* enable HPRE block master OOO when nfe occurs on Kunpeng930 */ 775 hpre_master_ooo_ctrl(qm, true); 776 777 /* enable hpre hw error interrupts */ 778 writel(HPRE_CORE_INT_ENABLE, qm->io_base + HPRE_INT_MASK); 779 } 780 781 static inline struct hisi_qm *hpre_file_to_qm(struct hpre_debugfs_file *file) 782 { 783 struct hpre *hpre = container_of(file->debug, struct hpre, debug); 784 785 return &hpre->qm; 786 } 787 788 static u32 hpre_clear_enable_read(struct hpre_debugfs_file *file) 789 { 790 struct hisi_qm *qm = hpre_file_to_qm(file); 791 792 return readl(qm->io_base + HPRE_CTRL_CNT_CLR_CE) & 793 HPRE_CTRL_CNT_CLR_CE_BIT; 794 } 795 796 static int hpre_clear_enable_write(struct hpre_debugfs_file *file, u32 val) 797 { 798 struct hisi_qm *qm = hpre_file_to_qm(file); 799 u32 tmp; 800 801 if (val != 1 && val != 0) 802 return -EINVAL; 803 804 tmp = (readl(qm->io_base + HPRE_CTRL_CNT_CLR_CE) & 805 ~HPRE_CTRL_CNT_CLR_CE_BIT) | val; 806 writel(tmp, qm->io_base + HPRE_CTRL_CNT_CLR_CE); 807 808 return 0; 809 } 810 811 static u32 hpre_cluster_inqry_read(struct hpre_debugfs_file *file) 812 { 813 struct hisi_qm *qm = hpre_file_to_qm(file); 814 int cluster_index = file->index - HPRE_CLUSTER_CTRL; 815 unsigned long offset = HPRE_CLSTR_BASE + 816 cluster_index * HPRE_CLSTR_ADDR_INTRVL; 817 818 return readl(qm->io_base + offset + HPRE_CLSTR_ADDR_INQRY_RSLT); 819 } 820 821 static void hpre_cluster_inqry_write(struct hpre_debugfs_file *file, u32 val) 822 { 823 struct hisi_qm *qm = hpre_file_to_qm(file); 824 int cluster_index = file->index - HPRE_CLUSTER_CTRL; 825 unsigned long offset = HPRE_CLSTR_BASE + cluster_index * 826 HPRE_CLSTR_ADDR_INTRVL; 827 828 writel(val, qm->io_base + offset + HPRE_CLUSTER_INQURY); 829 } 830 831 static ssize_t hpre_ctrl_debug_read(struct file *filp, char __user *buf, 832 size_t count, loff_t *pos) 833 { 834 struct hpre_debugfs_file *file = filp->private_data; 835 struct hisi_qm *qm = hpre_file_to_qm(file); 836 char tbuf[HPRE_DBGFS_VAL_MAX_LEN]; 837 u32 val; 838 int ret; 839 840 ret = hisi_qm_get_dfx_access(qm); 841 if (ret) 842 return ret; 843 844 spin_lock_irq(&file->lock); 845 switch (file->type) { 846 case HPRE_CLEAR_ENABLE: 847 val = hpre_clear_enable_read(file); 848 break; 849 case HPRE_CLUSTER_CTRL: 850 val = hpre_cluster_inqry_read(file); 851 break; 852 default: 853 goto err_input; 854 } 855 spin_unlock_irq(&file->lock); 856 857 hisi_qm_put_dfx_access(qm); 858 ret = snprintf(tbuf, HPRE_DBGFS_VAL_MAX_LEN, "%u\n", val); 859 return simple_read_from_buffer(buf, count, pos, tbuf, ret); 860 861 err_input: 862 spin_unlock_irq(&file->lock); 863 hisi_qm_put_dfx_access(qm); 864 return -EINVAL; 865 } 866 867 static ssize_t hpre_ctrl_debug_write(struct file *filp, const char __user *buf, 868 size_t count, loff_t *pos) 869 { 870 struct hpre_debugfs_file *file = filp->private_data; 871 struct hisi_qm *qm = hpre_file_to_qm(file); 872 char tbuf[HPRE_DBGFS_VAL_MAX_LEN]; 873 unsigned long val; 874 int len, ret; 875 876 if (*pos != 0) 877 return 0; 878 879 if (count >= HPRE_DBGFS_VAL_MAX_LEN) 880 return -ENOSPC; 881 882 len = simple_write_to_buffer(tbuf, HPRE_DBGFS_VAL_MAX_LEN - 1, 883 pos, buf, count); 884 if (len < 0) 885 return len; 886 887 tbuf[len] = '\0'; 888 if (kstrtoul(tbuf, 0, &val)) 889 return -EFAULT; 890 891 ret = hisi_qm_get_dfx_access(qm); 892 if (ret) 893 return ret; 894 895 spin_lock_irq(&file->lock); 896 switch (file->type) { 897 case HPRE_CLEAR_ENABLE: 898 ret = hpre_clear_enable_write(file, val); 899 if (ret) 900 goto err_input; 901 break; 902 case HPRE_CLUSTER_CTRL: 903 hpre_cluster_inqry_write(file, val); 904 break; 905 default: 906 ret = -EINVAL; 907 goto err_input; 908 } 909 910 ret = count; 911 912 err_input: 913 spin_unlock_irq(&file->lock); 914 hisi_qm_put_dfx_access(qm); 915 return ret; 916 } 917 918 static const struct file_operations hpre_ctrl_debug_fops = { 919 .owner = THIS_MODULE, 920 .open = simple_open, 921 .read = hpre_ctrl_debug_read, 922 .write = hpre_ctrl_debug_write, 923 }; 924 925 static int hpre_debugfs_atomic64_get(void *data, u64 *val) 926 { 927 struct hpre_dfx *dfx_item = data; 928 929 *val = atomic64_read(&dfx_item->value); 930 931 return 0; 932 } 933 934 static int hpre_debugfs_atomic64_set(void *data, u64 val) 935 { 936 struct hpre_dfx *dfx_item = data; 937 struct hpre_dfx *hpre_dfx = NULL; 938 939 if (dfx_item->type == HPRE_OVERTIME_THRHLD) { 940 hpre_dfx = dfx_item - HPRE_OVERTIME_THRHLD; 941 atomic64_set(&hpre_dfx[HPRE_OVER_THRHLD_CNT].value, 0); 942 } else if (val) { 943 return -EINVAL; 944 } 945 946 atomic64_set(&dfx_item->value, val); 947 948 return 0; 949 } 950 951 DEFINE_DEBUGFS_ATTRIBUTE(hpre_atomic64_ops, hpre_debugfs_atomic64_get, 952 hpre_debugfs_atomic64_set, "%llu\n"); 953 954 static int hpre_create_debugfs_file(struct hisi_qm *qm, struct dentry *dir, 955 enum hpre_ctrl_dbgfs_file type, int indx) 956 { 957 struct hpre *hpre = container_of(qm, struct hpre, qm); 958 struct hpre_debug *dbg = &hpre->debug; 959 struct dentry *file_dir; 960 961 if (dir) 962 file_dir = dir; 963 else 964 file_dir = qm->debug.debug_root; 965 966 if (type >= HPRE_DEBUG_FILE_NUM) 967 return -EINVAL; 968 969 spin_lock_init(&dbg->files[indx].lock); 970 dbg->files[indx].debug = dbg; 971 dbg->files[indx].type = type; 972 dbg->files[indx].index = indx; 973 debugfs_create_file(hpre_debug_file_name[type], 0600, file_dir, 974 dbg->files + indx, &hpre_ctrl_debug_fops); 975 976 return 0; 977 } 978 979 static int hpre_pf_comm_regs_debugfs_init(struct hisi_qm *qm) 980 { 981 struct device *dev = &qm->pdev->dev; 982 struct debugfs_regset32 *regset; 983 984 regset = devm_kzalloc(dev, sizeof(*regset), GFP_KERNEL); 985 if (!regset) 986 return -ENOMEM; 987 988 regset->regs = hpre_com_dfx_regs; 989 regset->nregs = ARRAY_SIZE(hpre_com_dfx_regs); 990 regset->base = qm->io_base; 991 regset->dev = dev; 992 993 debugfs_create_file("regs", 0444, qm->debug.debug_root, 994 regset, &hpre_com_regs_fops); 995 996 return 0; 997 } 998 999 static int hpre_cluster_debugfs_init(struct hisi_qm *qm) 1000 { 1001 struct device *dev = &qm->pdev->dev; 1002 char buf[HPRE_DBGFS_VAL_MAX_LEN]; 1003 struct debugfs_regset32 *regset; 1004 struct dentry *tmp_d; 1005 u8 clusters_num; 1006 int i, ret; 1007 1008 clusters_num = qm->cap_tables.dev_cap_table[HPRE_CLUSTER_NUM_CAP_IDX].cap_val; 1009 for (i = 0; i < clusters_num; i++) { 1010 ret = snprintf(buf, HPRE_DBGFS_VAL_MAX_LEN, "cluster%d", i); 1011 if (ret >= HPRE_DBGFS_VAL_MAX_LEN) 1012 return -EINVAL; 1013 tmp_d = debugfs_create_dir(buf, qm->debug.debug_root); 1014 1015 regset = devm_kzalloc(dev, sizeof(*regset), GFP_KERNEL); 1016 if (!regset) 1017 return -ENOMEM; 1018 1019 regset->regs = hpre_cluster_dfx_regs; 1020 regset->nregs = ARRAY_SIZE(hpre_cluster_dfx_regs); 1021 regset->base = qm->io_base + hpre_cluster_offsets[i]; 1022 regset->dev = dev; 1023 1024 debugfs_create_file("regs", 0444, tmp_d, regset, 1025 &hpre_cluster_regs_fops); 1026 ret = hpre_create_debugfs_file(qm, tmp_d, HPRE_CLUSTER_CTRL, 1027 i + HPRE_CLUSTER_CTRL); 1028 if (ret) 1029 return ret; 1030 } 1031 1032 return 0; 1033 } 1034 1035 static int hpre_ctrl_debug_init(struct hisi_qm *qm) 1036 { 1037 int ret; 1038 1039 ret = hpre_create_debugfs_file(qm, NULL, HPRE_CLEAR_ENABLE, 1040 HPRE_CLEAR_ENABLE); 1041 if (ret) 1042 return ret; 1043 1044 ret = hpre_pf_comm_regs_debugfs_init(qm); 1045 if (ret) 1046 return ret; 1047 1048 return hpre_cluster_debugfs_init(qm); 1049 } 1050 1051 static void hpre_dfx_debug_init(struct hisi_qm *qm) 1052 { 1053 struct dfx_diff_registers *hpre_regs = qm->debug.acc_diff_regs; 1054 struct hpre *hpre = container_of(qm, struct hpre, qm); 1055 struct hpre_dfx *dfx = hpre->debug.dfx; 1056 struct dentry *parent; 1057 int i; 1058 1059 parent = debugfs_create_dir("hpre_dfx", qm->debug.debug_root); 1060 for (i = 0; i < HPRE_DFX_FILE_NUM; i++) { 1061 dfx[i].type = i; 1062 debugfs_create_file(hpre_dfx_files[i], 0644, parent, &dfx[i], 1063 &hpre_atomic64_ops); 1064 } 1065 1066 if (qm->fun_type == QM_HW_PF && hpre_regs) 1067 debugfs_create_file("diff_regs", 0444, parent, 1068 qm, &hpre_diff_regs_fops); 1069 } 1070 1071 static int hpre_debugfs_init(struct hisi_qm *qm) 1072 { 1073 struct device *dev = &qm->pdev->dev; 1074 int ret; 1075 1076 qm->debug.debug_root = debugfs_create_dir(dev_name(dev), 1077 hpre_debugfs_root); 1078 1079 qm->debug.sqe_mask_offset = HPRE_SQE_MASK_OFFSET; 1080 qm->debug.sqe_mask_len = HPRE_SQE_MASK_LEN; 1081 ret = hisi_qm_regs_debugfs_init(qm, hpre_diff_regs, ARRAY_SIZE(hpre_diff_regs)); 1082 if (ret) { 1083 dev_warn(dev, "Failed to init HPRE diff regs!\n"); 1084 goto debugfs_remove; 1085 } 1086 1087 hisi_qm_debug_init(qm); 1088 1089 if (qm->pdev->device == PCI_DEVICE_ID_HUAWEI_HPRE_PF) { 1090 ret = hpre_ctrl_debug_init(qm); 1091 if (ret) 1092 goto failed_to_create; 1093 } 1094 1095 hpre_dfx_debug_init(qm); 1096 1097 return 0; 1098 1099 failed_to_create: 1100 hisi_qm_regs_debugfs_uninit(qm, ARRAY_SIZE(hpre_diff_regs)); 1101 debugfs_remove: 1102 debugfs_remove_recursive(qm->debug.debug_root); 1103 return ret; 1104 } 1105 1106 static void hpre_debugfs_exit(struct hisi_qm *qm) 1107 { 1108 hisi_qm_regs_debugfs_uninit(qm, ARRAY_SIZE(hpre_diff_regs)); 1109 1110 debugfs_remove_recursive(qm->debug.debug_root); 1111 } 1112 1113 static int hpre_pre_store_cap_reg(struct hisi_qm *qm) 1114 { 1115 struct hisi_qm_cap_record *hpre_cap; 1116 struct device *dev = &qm->pdev->dev; 1117 size_t i, size; 1118 1119 size = ARRAY_SIZE(hpre_pre_store_caps); 1120 hpre_cap = devm_kzalloc(dev, sizeof(*hpre_cap) * size, GFP_KERNEL); 1121 if (!hpre_cap) 1122 return -ENOMEM; 1123 1124 for (i = 0; i < size; i++) { 1125 hpre_cap[i].type = hpre_pre_store_caps[i]; 1126 hpre_cap[i].cap_val = hisi_qm_get_hw_info(qm, hpre_basic_info, 1127 hpre_pre_store_caps[i], qm->cap_ver); 1128 } 1129 1130 if (hpre_cap[HPRE_CLUSTER_NUM_CAP_IDX].cap_val > HPRE_CLUSTERS_NUM_MAX) { 1131 dev_err(dev, "Device cluster num %u is out of range for driver supports %d!\n", 1132 hpre_cap[HPRE_CLUSTER_NUM_CAP_IDX].cap_val, HPRE_CLUSTERS_NUM_MAX); 1133 return -EINVAL; 1134 } 1135 1136 qm->cap_tables.dev_cap_table = hpre_cap; 1137 1138 return 0; 1139 } 1140 1141 static int hpre_qm_init(struct hisi_qm *qm, struct pci_dev *pdev) 1142 { 1143 u64 alg_msk; 1144 int ret; 1145 1146 if (pdev->revision == QM_HW_V1) { 1147 pci_warn(pdev, "HPRE version 1 is not supported!\n"); 1148 return -EINVAL; 1149 } 1150 1151 qm->mode = uacce_mode; 1152 qm->pdev = pdev; 1153 qm->ver = pdev->revision; 1154 qm->sqe_size = HPRE_SQE_SIZE; 1155 qm->dev_name = hpre_name; 1156 1157 qm->fun_type = (pdev->device == PCI_DEVICE_ID_HUAWEI_HPRE_PF) ? 1158 QM_HW_PF : QM_HW_VF; 1159 if (qm->fun_type == QM_HW_PF) { 1160 qm->qp_base = HPRE_PF_DEF_Q_BASE; 1161 qm->qp_num = pf_q_num; 1162 qm->debug.curr_qm_qp_num = pf_q_num; 1163 qm->qm_list = &hpre_devices; 1164 if (pf_q_num_flag) 1165 set_bit(QM_MODULE_PARAM, &qm->misc_ctl); 1166 } 1167 1168 ret = hisi_qm_init(qm); 1169 if (ret) { 1170 pci_err(pdev, "Failed to init hpre qm configures!\n"); 1171 return ret; 1172 } 1173 1174 /* Fetch and save the value of capability registers */ 1175 ret = hpre_pre_store_cap_reg(qm); 1176 if (ret) { 1177 pci_err(pdev, "Failed to pre-store capability registers!\n"); 1178 hisi_qm_uninit(qm); 1179 return ret; 1180 } 1181 1182 alg_msk = qm->cap_tables.dev_cap_table[HPRE_DEV_ALG_BITMAP_CAP_IDX].cap_val; 1183 ret = hisi_qm_set_algs(qm, alg_msk, hpre_dev_algs, ARRAY_SIZE(hpre_dev_algs)); 1184 if (ret) { 1185 pci_err(pdev, "Failed to set hpre algs!\n"); 1186 hisi_qm_uninit(qm); 1187 } 1188 1189 return ret; 1190 } 1191 1192 static int hpre_show_last_regs_init(struct hisi_qm *qm) 1193 { 1194 int cluster_dfx_regs_num = ARRAY_SIZE(hpre_cluster_dfx_regs); 1195 int com_dfx_regs_num = ARRAY_SIZE(hpre_com_dfx_regs); 1196 struct qm_debug *debug = &qm->debug; 1197 void __iomem *io_base; 1198 u8 clusters_num; 1199 int i, j, idx; 1200 1201 clusters_num = qm->cap_tables.dev_cap_table[HPRE_CLUSTER_NUM_CAP_IDX].cap_val; 1202 debug->last_words = kcalloc(cluster_dfx_regs_num * clusters_num + 1203 com_dfx_regs_num, sizeof(unsigned int), GFP_KERNEL); 1204 if (!debug->last_words) 1205 return -ENOMEM; 1206 1207 for (i = 0; i < com_dfx_regs_num; i++) 1208 debug->last_words[i] = readl_relaxed(qm->io_base + 1209 hpre_com_dfx_regs[i].offset); 1210 1211 for (i = 0; i < clusters_num; i++) { 1212 io_base = qm->io_base + hpre_cluster_offsets[i]; 1213 for (j = 0; j < cluster_dfx_regs_num; j++) { 1214 idx = com_dfx_regs_num + i * cluster_dfx_regs_num + j; 1215 debug->last_words[idx] = readl_relaxed( 1216 io_base + hpre_cluster_dfx_regs[j].offset); 1217 } 1218 } 1219 1220 return 0; 1221 } 1222 1223 static void hpre_show_last_regs_uninit(struct hisi_qm *qm) 1224 { 1225 struct qm_debug *debug = &qm->debug; 1226 1227 if (qm->fun_type == QM_HW_VF || !debug->last_words) 1228 return; 1229 1230 kfree(debug->last_words); 1231 debug->last_words = NULL; 1232 } 1233 1234 static void hpre_show_last_dfx_regs(struct hisi_qm *qm) 1235 { 1236 int cluster_dfx_regs_num = ARRAY_SIZE(hpre_cluster_dfx_regs); 1237 int com_dfx_regs_num = ARRAY_SIZE(hpre_com_dfx_regs); 1238 struct qm_debug *debug = &qm->debug; 1239 struct pci_dev *pdev = qm->pdev; 1240 void __iomem *io_base; 1241 u8 clusters_num; 1242 int i, j, idx; 1243 u32 val; 1244 1245 if (qm->fun_type == QM_HW_VF || !debug->last_words) 1246 return; 1247 1248 /* dumps last word of the debugging registers during controller reset */ 1249 for (i = 0; i < com_dfx_regs_num; i++) { 1250 val = readl_relaxed(qm->io_base + hpre_com_dfx_regs[i].offset); 1251 if (debug->last_words[i] != val) 1252 pci_info(pdev, "Common_core:%s \t= 0x%08x => 0x%08x\n", 1253 hpre_com_dfx_regs[i].name, debug->last_words[i], val); 1254 } 1255 1256 clusters_num = qm->cap_tables.dev_cap_table[HPRE_CLUSTER_NUM_CAP_IDX].cap_val; 1257 for (i = 0; i < clusters_num; i++) { 1258 io_base = qm->io_base + hpre_cluster_offsets[i]; 1259 for (j = 0; j < cluster_dfx_regs_num; j++) { 1260 val = readl_relaxed(io_base + 1261 hpre_cluster_dfx_regs[j].offset); 1262 idx = com_dfx_regs_num + i * cluster_dfx_regs_num + j; 1263 if (debug->last_words[idx] != val) 1264 pci_info(pdev, "cluster-%d:%s \t= 0x%08x => 0x%08x\n", 1265 i, hpre_cluster_dfx_regs[j].name, debug->last_words[idx], val); 1266 } 1267 } 1268 } 1269 1270 static void hpre_log_hw_error(struct hisi_qm *qm, u32 err_sts) 1271 { 1272 const struct hpre_hw_error *err = hpre_hw_errors; 1273 struct device *dev = &qm->pdev->dev; 1274 1275 while (err->msg) { 1276 if (err->int_msk & err_sts) 1277 dev_warn(dev, "%s [error status=0x%x] found\n", 1278 err->msg, err->int_msk); 1279 err++; 1280 } 1281 } 1282 1283 static u32 hpre_get_hw_err_status(struct hisi_qm *qm) 1284 { 1285 return readl(qm->io_base + HPRE_INT_STATUS); 1286 } 1287 1288 static void hpre_clear_hw_err_status(struct hisi_qm *qm, u32 err_sts) 1289 { 1290 u32 nfe; 1291 1292 writel(err_sts, qm->io_base + HPRE_HAC_SOURCE_INT); 1293 nfe = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_NFE_MASK_CAP, qm->cap_ver); 1294 writel(nfe, qm->io_base + HPRE_RAS_NFE_ENB); 1295 } 1296 1297 static void hpre_open_axi_master_ooo(struct hisi_qm *qm) 1298 { 1299 u32 value; 1300 1301 value = readl(qm->io_base + HPRE_AM_OOO_SHUTDOWN_ENB); 1302 writel(value & ~HPRE_AM_OOO_SHUTDOWN_ENABLE, 1303 qm->io_base + HPRE_AM_OOO_SHUTDOWN_ENB); 1304 writel(value | HPRE_AM_OOO_SHUTDOWN_ENABLE, 1305 qm->io_base + HPRE_AM_OOO_SHUTDOWN_ENB); 1306 } 1307 1308 static void hpre_err_info_init(struct hisi_qm *qm) 1309 { 1310 struct hisi_qm_err_info *err_info = &qm->err_info; 1311 1312 err_info->fe = HPRE_HAC_RAS_FE_ENABLE; 1313 err_info->ce = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_QM_CE_MASK_CAP, qm->cap_ver); 1314 err_info->nfe = hisi_qm_get_hw_info(qm, hpre_basic_info, HPRE_QM_NFE_MASK_CAP, qm->cap_ver); 1315 err_info->ecc_2bits_mask = HPRE_CORE_ECC_2BIT_ERR | HPRE_OOO_ECC_2BIT_ERR; 1316 err_info->dev_shutdown_mask = hisi_qm_get_hw_info(qm, hpre_basic_info, 1317 HPRE_OOO_SHUTDOWN_MASK_CAP, qm->cap_ver); 1318 err_info->qm_shutdown_mask = hisi_qm_get_hw_info(qm, hpre_basic_info, 1319 HPRE_QM_OOO_SHUTDOWN_MASK_CAP, qm->cap_ver); 1320 err_info->qm_reset_mask = hisi_qm_get_hw_info(qm, hpre_basic_info, 1321 HPRE_QM_RESET_MASK_CAP, qm->cap_ver); 1322 err_info->dev_reset_mask = hisi_qm_get_hw_info(qm, hpre_basic_info, 1323 HPRE_RESET_MASK_CAP, qm->cap_ver); 1324 err_info->msi_wr_port = HPRE_WR_MSI_PORT; 1325 err_info->acpi_rst = "HRST"; 1326 } 1327 1328 static const struct hisi_qm_err_ini hpre_err_ini = { 1329 .hw_init = hpre_set_user_domain_and_cache, 1330 .hw_err_enable = hpre_hw_error_enable, 1331 .hw_err_disable = hpre_hw_error_disable, 1332 .get_dev_hw_err_status = hpre_get_hw_err_status, 1333 .clear_dev_hw_err_status = hpre_clear_hw_err_status, 1334 .log_dev_hw_err = hpre_log_hw_error, 1335 .open_axi_master_ooo = hpre_open_axi_master_ooo, 1336 .open_sva_prefetch = hpre_open_sva_prefetch, 1337 .close_sva_prefetch = hpre_close_sva_prefetch, 1338 .show_last_dfx_regs = hpre_show_last_dfx_regs, 1339 .err_info_init = hpre_err_info_init, 1340 }; 1341 1342 static int hpre_pf_probe_init(struct hpre *hpre) 1343 { 1344 struct hisi_qm *qm = &hpre->qm; 1345 int ret; 1346 1347 ret = hpre_set_user_domain_and_cache(qm); 1348 if (ret) 1349 return ret; 1350 1351 hpre_open_sva_prefetch(qm); 1352 1353 qm->err_ini = &hpre_err_ini; 1354 qm->err_ini->err_info_init(qm); 1355 hisi_qm_dev_err_init(qm); 1356 ret = hpre_show_last_regs_init(qm); 1357 if (ret) 1358 pci_err(qm->pdev, "Failed to init last word regs!\n"); 1359 1360 return ret; 1361 } 1362 1363 static int hpre_probe_init(struct hpre *hpre) 1364 { 1365 u32 type_rate = HPRE_SHAPER_TYPE_RATE; 1366 struct hisi_qm *qm = &hpre->qm; 1367 int ret; 1368 1369 if (qm->fun_type == QM_HW_PF) { 1370 ret = hpre_pf_probe_init(hpre); 1371 if (ret) 1372 return ret; 1373 /* Enable shaper type 0 */ 1374 if (qm->ver >= QM_HW_V3) { 1375 type_rate |= QM_SHAPER_ENABLE; 1376 qm->type_rate = type_rate; 1377 } 1378 } 1379 1380 return 0; 1381 } 1382 1383 static int hpre_probe(struct pci_dev *pdev, const struct pci_device_id *id) 1384 { 1385 struct hisi_qm *qm; 1386 struct hpre *hpre; 1387 int ret; 1388 1389 hpre = devm_kzalloc(&pdev->dev, sizeof(*hpre), GFP_KERNEL); 1390 if (!hpre) 1391 return -ENOMEM; 1392 1393 qm = &hpre->qm; 1394 ret = hpre_qm_init(qm, pdev); 1395 if (ret) { 1396 pci_err(pdev, "Failed to init HPRE QM (%d)!\n", ret); 1397 return ret; 1398 } 1399 1400 ret = hpre_probe_init(hpre); 1401 if (ret) { 1402 pci_err(pdev, "Failed to probe (%d)!\n", ret); 1403 goto err_with_qm_init; 1404 } 1405 1406 ret = hisi_qm_start(qm); 1407 if (ret) 1408 goto err_with_err_init; 1409 1410 ret = hpre_debugfs_init(qm); 1411 if (ret) 1412 dev_warn(&pdev->dev, "init debugfs fail!\n"); 1413 1414 ret = hisi_qm_alg_register(qm, &hpre_devices); 1415 if (ret < 0) { 1416 pci_err(pdev, "fail to register algs to crypto!\n"); 1417 goto err_with_qm_start; 1418 } 1419 1420 if (qm->uacce) { 1421 ret = uacce_register(qm->uacce); 1422 if (ret) { 1423 pci_err(pdev, "failed to register uacce (%d)!\n", ret); 1424 goto err_with_alg_register; 1425 } 1426 } 1427 1428 if (qm->fun_type == QM_HW_PF && vfs_num) { 1429 ret = hisi_qm_sriov_enable(pdev, vfs_num); 1430 if (ret < 0) 1431 goto err_with_alg_register; 1432 } 1433 1434 hisi_qm_pm_init(qm); 1435 1436 return 0; 1437 1438 err_with_alg_register: 1439 hisi_qm_alg_unregister(qm, &hpre_devices); 1440 1441 err_with_qm_start: 1442 hpre_debugfs_exit(qm); 1443 hisi_qm_stop(qm, QM_NORMAL); 1444 1445 err_with_err_init: 1446 hpre_show_last_regs_uninit(qm); 1447 hisi_qm_dev_err_uninit(qm); 1448 1449 err_with_qm_init: 1450 hisi_qm_uninit(qm); 1451 1452 return ret; 1453 } 1454 1455 static void hpre_remove(struct pci_dev *pdev) 1456 { 1457 struct hisi_qm *qm = pci_get_drvdata(pdev); 1458 1459 hisi_qm_pm_uninit(qm); 1460 hisi_qm_wait_task_finish(qm, &hpre_devices); 1461 hisi_qm_alg_unregister(qm, &hpre_devices); 1462 if (qm->fun_type == QM_HW_PF && qm->vfs_num) 1463 hisi_qm_sriov_disable(pdev, true); 1464 1465 hpre_debugfs_exit(qm); 1466 hisi_qm_stop(qm, QM_NORMAL); 1467 1468 if (qm->fun_type == QM_HW_PF) { 1469 hpre_cnt_regs_clear(qm); 1470 qm->debug.curr_qm_qp_num = 0; 1471 hpre_show_last_regs_uninit(qm); 1472 hisi_qm_dev_err_uninit(qm); 1473 } 1474 1475 hisi_qm_uninit(qm); 1476 } 1477 1478 static const struct dev_pm_ops hpre_pm_ops = { 1479 SET_RUNTIME_PM_OPS(hisi_qm_suspend, hisi_qm_resume, NULL) 1480 }; 1481 1482 static const struct pci_error_handlers hpre_err_handler = { 1483 .error_detected = hisi_qm_dev_err_detected, 1484 .slot_reset = hisi_qm_dev_slot_reset, 1485 .reset_prepare = hisi_qm_reset_prepare, 1486 .reset_done = hisi_qm_reset_done, 1487 }; 1488 1489 static struct pci_driver hpre_pci_driver = { 1490 .name = hpre_name, 1491 .id_table = hpre_dev_ids, 1492 .probe = hpre_probe, 1493 .remove = hpre_remove, 1494 .sriov_configure = IS_ENABLED(CONFIG_PCI_IOV) ? 1495 hisi_qm_sriov_configure : NULL, 1496 .err_handler = &hpre_err_handler, 1497 .shutdown = hisi_qm_dev_shutdown, 1498 .driver.pm = &hpre_pm_ops, 1499 }; 1500 1501 struct pci_driver *hisi_hpre_get_pf_driver(void) 1502 { 1503 return &hpre_pci_driver; 1504 } 1505 EXPORT_SYMBOL_GPL(hisi_hpre_get_pf_driver); 1506 1507 static void hpre_register_debugfs(void) 1508 { 1509 if (!debugfs_initialized()) 1510 return; 1511 1512 hpre_debugfs_root = debugfs_create_dir(hpre_name, NULL); 1513 } 1514 1515 static void hpre_unregister_debugfs(void) 1516 { 1517 debugfs_remove_recursive(hpre_debugfs_root); 1518 } 1519 1520 static int __init hpre_init(void) 1521 { 1522 int ret; 1523 1524 hisi_qm_init_list(&hpre_devices); 1525 hpre_register_debugfs(); 1526 1527 ret = pci_register_driver(&hpre_pci_driver); 1528 if (ret) { 1529 hpre_unregister_debugfs(); 1530 pr_err("hpre: can't register hisi hpre driver.\n"); 1531 } 1532 1533 return ret; 1534 } 1535 1536 static void __exit hpre_exit(void) 1537 { 1538 pci_unregister_driver(&hpre_pci_driver); 1539 hpre_unregister_debugfs(); 1540 } 1541 1542 module_init(hpre_init); 1543 module_exit(hpre_exit); 1544 1545 MODULE_LICENSE("GPL v2"); 1546 MODULE_AUTHOR("Zaibo Xu <xuzaibo@huawei.com>"); 1547 MODULE_AUTHOR("Meng Yu <yumeng18@huawei.com>"); 1548 MODULE_DESCRIPTION("Driver for HiSilicon HPRE accelerator"); 1549