1 /* Copyright 2008 - 2016 Freescale Semiconductor, Inc. 2 * 3 * Redistribution and use in source and binary forms, with or without 4 * modification, are permitted provided that the following conditions are met: 5 * * Redistributions of source code must retain the above copyright 6 * notice, this list of conditions and the following disclaimer. 7 * * Redistributions in binary form must reproduce the above copyright 8 * notice, this list of conditions and the following disclaimer in the 9 * documentation and/or other materials provided with the distribution. 10 * * Neither the name of Freescale Semiconductor nor the 11 * names of its contributors may be used to endorse or promote products 12 * derived from this software without specific prior written permission. 13 * 14 * ALTERNATIVELY, this software may be distributed under the terms of the 15 * GNU General Public License ("GPL") as published by the Free Software 16 * Foundation, either version 2 of that License or (at your option) any 17 * later version. 18 * 19 * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY 20 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 22 * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY 23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 26 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include "qman_priv.h" 32 33 u16 qman_ip_rev; 34 EXPORT_SYMBOL(qman_ip_rev); 35 u16 qm_channel_pool1 = QMAN_CHANNEL_POOL1; 36 EXPORT_SYMBOL(qm_channel_pool1); 37 u16 qm_channel_caam = QMAN_CHANNEL_CAAM; 38 EXPORT_SYMBOL(qm_channel_caam); 39 40 /* Register offsets */ 41 #define REG_QCSP_LIO_CFG(n) (0x0000 + ((n) * 0x10)) 42 #define REG_QCSP_IO_CFG(n) (0x0004 + ((n) * 0x10)) 43 #define REG_QCSP_DD_CFG(n) (0x000c + ((n) * 0x10)) 44 #define REG_DD_CFG 0x0200 45 #define REG_DCP_CFG(n) (0x0300 + ((n) * 0x10)) 46 #define REG_DCP_DD_CFG(n) (0x0304 + ((n) * 0x10)) 47 #define REG_DCP_DLM_AVG(n) (0x030c + ((n) * 0x10)) 48 #define REG_PFDR_FPC 0x0400 49 #define REG_PFDR_FP_HEAD 0x0404 50 #define REG_PFDR_FP_TAIL 0x0408 51 #define REG_PFDR_FP_LWIT 0x0410 52 #define REG_PFDR_CFG 0x0414 53 #define REG_SFDR_CFG 0x0500 54 #define REG_SFDR_IN_USE 0x0504 55 #define REG_WQ_CS_CFG(n) (0x0600 + ((n) * 0x04)) 56 #define REG_WQ_DEF_ENC_WQID 0x0630 57 #define REG_WQ_SC_DD_CFG(n) (0x640 + ((n) * 0x04)) 58 #define REG_WQ_PC_DD_CFG(n) (0x680 + ((n) * 0x04)) 59 #define REG_WQ_DC0_DD_CFG(n) (0x6c0 + ((n) * 0x04)) 60 #define REG_WQ_DC1_DD_CFG(n) (0x700 + ((n) * 0x04)) 61 #define REG_WQ_DCn_DD_CFG(n) (0x6c0 + ((n) * 0x40)) /* n=2,3 */ 62 #define REG_CM_CFG 0x0800 63 #define REG_ECSR 0x0a00 64 #define REG_ECIR 0x0a04 65 #define REG_EADR 0x0a08 66 #define REG_ECIR2 0x0a0c 67 #define REG_EDATA(n) (0x0a10 + ((n) * 0x04)) 68 #define REG_SBEC(n) (0x0a80 + ((n) * 0x04)) 69 #define REG_MCR 0x0b00 70 #define REG_MCP(n) (0x0b04 + ((n) * 0x04)) 71 #define REG_MISC_CFG 0x0be0 72 #define REG_HID_CFG 0x0bf0 73 #define REG_IDLE_STAT 0x0bf4 74 #define REG_IP_REV_1 0x0bf8 75 #define REG_IP_REV_2 0x0bfc 76 #define REG_FQD_BARE 0x0c00 77 #define REG_PFDR_BARE 0x0c20 78 #define REG_offset_BAR 0x0004 /* relative to REG_[FQD|PFDR]_BARE */ 79 #define REG_offset_AR 0x0010 /* relative to REG_[FQD|PFDR]_BARE */ 80 #define REG_QCSP_BARE 0x0c80 81 #define REG_QCSP_BAR 0x0c84 82 #define REG_CI_SCHED_CFG 0x0d00 83 #define REG_SRCIDR 0x0d04 84 #define REG_LIODNR 0x0d08 85 #define REG_CI_RLM_AVG 0x0d14 86 #define REG_ERR_ISR 0x0e00 87 #define REG_ERR_IER 0x0e04 88 #define REG_REV3_QCSP_LIO_CFG(n) (0x1000 + ((n) * 0x10)) 89 #define REG_REV3_QCSP_IO_CFG(n) (0x1004 + ((n) * 0x10)) 90 #define REG_REV3_QCSP_DD_CFG(n) (0x100c + ((n) * 0x10)) 91 92 /* Assists for QMAN_MCR */ 93 #define MCR_INIT_PFDR 0x01000000 94 #define MCR_get_rslt(v) (u8)((v) >> 24) 95 #define MCR_rslt_idle(r) (!(r) || ((r) >= 0xf0)) 96 #define MCR_rslt_ok(r) ((r) == 0xf0) 97 #define MCR_rslt_eaccess(r) ((r) == 0xf8) 98 #define MCR_rslt_inval(r) ((r) == 0xff) 99 100 /* 101 * Corenet initiator settings. Stash request queues are 4-deep to match cores 102 * ability to snarf. Stash priority is 3, other priorities are 2. 103 */ 104 #define QM_CI_SCHED_CFG_SRCCIV 4 105 #define QM_CI_SCHED_CFG_SRQ_W 3 106 #define QM_CI_SCHED_CFG_RW_W 2 107 #define QM_CI_SCHED_CFG_BMAN_W 2 108 /* write SRCCIV enable */ 109 #define QM_CI_SCHED_CFG_SRCCIV_EN BIT(31) 110 111 /* Follows WQ_CS_CFG0-5 */ 112 enum qm_wq_class { 113 qm_wq_portal = 0, 114 qm_wq_pool = 1, 115 qm_wq_fman0 = 2, 116 qm_wq_fman1 = 3, 117 qm_wq_caam = 4, 118 qm_wq_pme = 5, 119 qm_wq_first = qm_wq_portal, 120 qm_wq_last = qm_wq_pme 121 }; 122 123 /* Follows FQD_[BARE|BAR|AR] and PFDR_[BARE|BAR|AR] */ 124 enum qm_memory { 125 qm_memory_fqd, 126 qm_memory_pfdr 127 }; 128 129 /* Used by all error interrupt registers except 'inhibit' */ 130 #define QM_EIRQ_CIDE 0x20000000 /* Corenet Initiator Data Error */ 131 #define QM_EIRQ_CTDE 0x10000000 /* Corenet Target Data Error */ 132 #define QM_EIRQ_CITT 0x08000000 /* Corenet Invalid Target Transaction */ 133 #define QM_EIRQ_PLWI 0x04000000 /* PFDR Low Watermark */ 134 #define QM_EIRQ_MBEI 0x02000000 /* Multi-bit ECC Error */ 135 #define QM_EIRQ_SBEI 0x01000000 /* Single-bit ECC Error */ 136 #define QM_EIRQ_PEBI 0x00800000 /* PFDR Enqueues Blocked Interrupt */ 137 #define QM_EIRQ_IFSI 0x00020000 /* Invalid FQ Flow Control State */ 138 #define QM_EIRQ_ICVI 0x00010000 /* Invalid Command Verb */ 139 #define QM_EIRQ_IDDI 0x00000800 /* Invalid Dequeue (Direct-connect) */ 140 #define QM_EIRQ_IDFI 0x00000400 /* Invalid Dequeue FQ */ 141 #define QM_EIRQ_IDSI 0x00000200 /* Invalid Dequeue Source */ 142 #define QM_EIRQ_IDQI 0x00000100 /* Invalid Dequeue Queue */ 143 #define QM_EIRQ_IECE 0x00000010 /* Invalid Enqueue Configuration */ 144 #define QM_EIRQ_IEOI 0x00000008 /* Invalid Enqueue Overflow */ 145 #define QM_EIRQ_IESI 0x00000004 /* Invalid Enqueue State */ 146 #define QM_EIRQ_IECI 0x00000002 /* Invalid Enqueue Channel */ 147 #define QM_EIRQ_IEQI 0x00000001 /* Invalid Enqueue Queue */ 148 149 /* QMAN_ECIR valid error bit */ 150 #define PORTAL_ECSR_ERR (QM_EIRQ_IEQI | QM_EIRQ_IESI | QM_EIRQ_IEOI | \ 151 QM_EIRQ_IDQI | QM_EIRQ_IDSI | QM_EIRQ_IDFI | \ 152 QM_EIRQ_IDDI | QM_EIRQ_ICVI | QM_EIRQ_IFSI) 153 #define FQID_ECSR_ERR (QM_EIRQ_IEQI | QM_EIRQ_IECI | QM_EIRQ_IESI | \ 154 QM_EIRQ_IEOI | QM_EIRQ_IDQI | QM_EIRQ_IDFI | \ 155 QM_EIRQ_IFSI) 156 157 struct qm_ecir { 158 u32 info; /* res[30-31], ptyp[29], pnum[24-28], fqid[0-23] */ 159 }; 160 161 static bool qm_ecir_is_dcp(const struct qm_ecir *p) 162 { 163 return p->info & BIT(29); 164 } 165 166 static int qm_ecir_get_pnum(const struct qm_ecir *p) 167 { 168 return (p->info >> 24) & 0x1f; 169 } 170 171 static int qm_ecir_get_fqid(const struct qm_ecir *p) 172 { 173 return p->info & (BIT(24) - 1); 174 } 175 176 struct qm_ecir2 { 177 u32 info; /* ptyp[31], res[10-30], pnum[0-9] */ 178 }; 179 180 static bool qm_ecir2_is_dcp(const struct qm_ecir2 *p) 181 { 182 return p->info & BIT(31); 183 } 184 185 static int qm_ecir2_get_pnum(const struct qm_ecir2 *p) 186 { 187 return p->info & (BIT(10) - 1); 188 } 189 190 struct qm_eadr { 191 u32 info; /* memid[24-27], eadr[0-11] */ 192 /* v3: memid[24-28], eadr[0-15] */ 193 }; 194 195 static int qm_eadr_get_memid(const struct qm_eadr *p) 196 { 197 return (p->info >> 24) & 0xf; 198 } 199 200 static int qm_eadr_get_eadr(const struct qm_eadr *p) 201 { 202 return p->info & (BIT(12) - 1); 203 } 204 205 static int qm_eadr_v3_get_memid(const struct qm_eadr *p) 206 { 207 return (p->info >> 24) & 0x1f; 208 } 209 210 static int qm_eadr_v3_get_eadr(const struct qm_eadr *p) 211 { 212 return p->info & (BIT(16) - 1); 213 } 214 215 struct qman_hwerr_txt { 216 u32 mask; 217 const char *txt; 218 }; 219 220 221 static const struct qman_hwerr_txt qman_hwerr_txts[] = { 222 { QM_EIRQ_CIDE, "Corenet Initiator Data Error" }, 223 { QM_EIRQ_CTDE, "Corenet Target Data Error" }, 224 { QM_EIRQ_CITT, "Corenet Invalid Target Transaction" }, 225 { QM_EIRQ_PLWI, "PFDR Low Watermark" }, 226 { QM_EIRQ_MBEI, "Multi-bit ECC Error" }, 227 { QM_EIRQ_SBEI, "Single-bit ECC Error" }, 228 { QM_EIRQ_PEBI, "PFDR Enqueues Blocked Interrupt" }, 229 { QM_EIRQ_ICVI, "Invalid Command Verb" }, 230 { QM_EIRQ_IFSI, "Invalid Flow Control State" }, 231 { QM_EIRQ_IDDI, "Invalid Dequeue (Direct-connect)" }, 232 { QM_EIRQ_IDFI, "Invalid Dequeue FQ" }, 233 { QM_EIRQ_IDSI, "Invalid Dequeue Source" }, 234 { QM_EIRQ_IDQI, "Invalid Dequeue Queue" }, 235 { QM_EIRQ_IECE, "Invalid Enqueue Configuration" }, 236 { QM_EIRQ_IEOI, "Invalid Enqueue Overflow" }, 237 { QM_EIRQ_IESI, "Invalid Enqueue State" }, 238 { QM_EIRQ_IECI, "Invalid Enqueue Channel" }, 239 { QM_EIRQ_IEQI, "Invalid Enqueue Queue" }, 240 }; 241 242 struct qman_error_info_mdata { 243 u16 addr_mask; 244 u16 bits; 245 const char *txt; 246 }; 247 248 static const struct qman_error_info_mdata error_mdata[] = { 249 { 0x01FF, 24, "FQD cache tag memory 0" }, 250 { 0x01FF, 24, "FQD cache tag memory 1" }, 251 { 0x01FF, 24, "FQD cache tag memory 2" }, 252 { 0x01FF, 24, "FQD cache tag memory 3" }, 253 { 0x0FFF, 512, "FQD cache memory" }, 254 { 0x07FF, 128, "SFDR memory" }, 255 { 0x01FF, 72, "WQ context memory" }, 256 { 0x00FF, 240, "CGR memory" }, 257 { 0x00FF, 302, "Internal Order Restoration List memory" }, 258 { 0x01FF, 256, "SW portal ring memory" }, 259 }; 260 261 #define QMAN_ERRS_TO_DISABLE (QM_EIRQ_PLWI | QM_EIRQ_PEBI) 262 263 /* 264 * TODO: unimplemented registers 265 * 266 * Keeping a list here of QMan registers I have not yet covered; 267 * QCSP_DD_IHRSR, QCSP_DD_IHRFR, QCSP_DD_HASR, 268 * DCP_DD_IHRSR, DCP_DD_IHRFR, DCP_DD_HASR, CM_CFG, 269 * QMAN_EECC, QMAN_SBET, QMAN_EINJ, QMAN_SBEC0-12 270 */ 271 272 /* Pointer to the start of the QMan's CCSR space */ 273 static u32 __iomem *qm_ccsr_start; 274 /* A SDQCR mask comprising all the available/visible pool channels */ 275 static u32 qm_pools_sdqcr; 276 static int __qman_probed; 277 278 static inline u32 qm_ccsr_in(u32 offset) 279 { 280 return ioread32be(qm_ccsr_start + offset/4); 281 } 282 283 static inline void qm_ccsr_out(u32 offset, u32 val) 284 { 285 iowrite32be(val, qm_ccsr_start + offset/4); 286 } 287 288 u32 qm_get_pools_sdqcr(void) 289 { 290 return qm_pools_sdqcr; 291 } 292 293 enum qm_dc_portal { 294 qm_dc_portal_fman0 = 0, 295 qm_dc_portal_fman1 = 1 296 }; 297 298 static void qm_set_dc(enum qm_dc_portal portal, int ed, u8 sernd) 299 { 300 DPAA_ASSERT(!ed || portal == qm_dc_portal_fman0 || 301 portal == qm_dc_portal_fman1); 302 if ((qman_ip_rev & 0xFF00) >= QMAN_REV30) 303 qm_ccsr_out(REG_DCP_CFG(portal), 304 (ed ? 0x1000 : 0) | (sernd & 0x3ff)); 305 else 306 qm_ccsr_out(REG_DCP_CFG(portal), 307 (ed ? 0x100 : 0) | (sernd & 0x1f)); 308 } 309 310 static void qm_set_wq_scheduling(enum qm_wq_class wq_class, 311 u8 cs_elev, u8 csw2, u8 csw3, u8 csw4, 312 u8 csw5, u8 csw6, u8 csw7) 313 { 314 qm_ccsr_out(REG_WQ_CS_CFG(wq_class), ((cs_elev & 0xff) << 24) | 315 ((csw2 & 0x7) << 20) | ((csw3 & 0x7) << 16) | 316 ((csw4 & 0x7) << 12) | ((csw5 & 0x7) << 8) | 317 ((csw6 & 0x7) << 4) | (csw7 & 0x7)); 318 } 319 320 static void qm_set_hid(void) 321 { 322 qm_ccsr_out(REG_HID_CFG, 0); 323 } 324 325 static void qm_set_corenet_initiator(void) 326 { 327 qm_ccsr_out(REG_CI_SCHED_CFG, QM_CI_SCHED_CFG_SRCCIV_EN | 328 (QM_CI_SCHED_CFG_SRCCIV << 24) | 329 (QM_CI_SCHED_CFG_SRQ_W << 8) | 330 (QM_CI_SCHED_CFG_RW_W << 4) | 331 QM_CI_SCHED_CFG_BMAN_W); 332 } 333 334 static void qm_get_version(u16 *id, u8 *major, u8 *minor) 335 { 336 u32 v = qm_ccsr_in(REG_IP_REV_1); 337 *id = (v >> 16); 338 *major = (v >> 8) & 0xff; 339 *minor = v & 0xff; 340 } 341 342 #define PFDR_AR_EN BIT(31) 343 static void qm_set_memory(enum qm_memory memory, u64 ba, u32 size) 344 { 345 u32 offset = (memory == qm_memory_fqd) ? REG_FQD_BARE : REG_PFDR_BARE; 346 u32 exp = ilog2(size); 347 348 /* choke if size isn't within range */ 349 DPAA_ASSERT((size >= 4096) && (size <= 1024*1024*1024) && 350 is_power_of_2(size)); 351 /* choke if 'ba' has lower-alignment than 'size' */ 352 DPAA_ASSERT(!(ba & (size - 1))); 353 qm_ccsr_out(offset, upper_32_bits(ba)); 354 qm_ccsr_out(offset + REG_offset_BAR, lower_32_bits(ba)); 355 qm_ccsr_out(offset + REG_offset_AR, PFDR_AR_EN | (exp - 1)); 356 } 357 358 static void qm_set_pfdr_threshold(u32 th, u8 k) 359 { 360 qm_ccsr_out(REG_PFDR_FP_LWIT, th & 0xffffff); 361 qm_ccsr_out(REG_PFDR_CFG, k); 362 } 363 364 static void qm_set_sfdr_threshold(u16 th) 365 { 366 qm_ccsr_out(REG_SFDR_CFG, th & 0x3ff); 367 } 368 369 static int qm_init_pfdr(struct device *dev, u32 pfdr_start, u32 num) 370 { 371 u8 rslt = MCR_get_rslt(qm_ccsr_in(REG_MCR)); 372 373 DPAA_ASSERT(pfdr_start && !(pfdr_start & 7) && !(num & 7) && num); 374 /* Make sure the command interface is 'idle' */ 375 if (!MCR_rslt_idle(rslt)) { 376 dev_crit(dev, "QMAN_MCR isn't idle"); 377 WARN_ON(1); 378 } 379 380 /* Write the MCR command params then the verb */ 381 qm_ccsr_out(REG_MCP(0), pfdr_start); 382 /* 383 * TODO: remove this - it's a workaround for a model bug that is 384 * corrected in more recent versions. We use the workaround until 385 * everyone has upgraded. 386 */ 387 qm_ccsr_out(REG_MCP(1), pfdr_start + num - 16); 388 dma_wmb(); 389 qm_ccsr_out(REG_MCR, MCR_INIT_PFDR); 390 /* Poll for the result */ 391 do { 392 rslt = MCR_get_rslt(qm_ccsr_in(REG_MCR)); 393 } while (!MCR_rslt_idle(rslt)); 394 if (MCR_rslt_ok(rslt)) 395 return 0; 396 if (MCR_rslt_eaccess(rslt)) 397 return -EACCES; 398 if (MCR_rslt_inval(rslt)) 399 return -EINVAL; 400 dev_crit(dev, "Unexpected result from MCR_INIT_PFDR: %02x\n", rslt); 401 return -ENODEV; 402 } 403 404 /* 405 * QMan needs two global memory areas initialized at boot time: 406 * 1) FQD: Frame Queue Descriptors used to manage frame queues 407 * 2) PFDR: Packed Frame Queue Descriptor Records used to store frames 408 * Both areas are reserved using the device tree reserved memory framework 409 * and the addresses and sizes are initialized when the QMan device is probed 410 */ 411 static dma_addr_t fqd_a, pfdr_a; 412 static size_t fqd_sz, pfdr_sz; 413 414 #ifdef CONFIG_PPC 415 /* 416 * Support for PPC Device Tree backward compatibility when compatible 417 * string is set to fsl-qman-fqd and fsl-qman-pfdr 418 */ 419 static int zero_priv_mem(phys_addr_t addr, size_t sz) 420 { 421 /* map as cacheable, non-guarded */ 422 void __iomem *tmpp = ioremap_cache(addr, sz); 423 424 if (!tmpp) 425 return -ENOMEM; 426 427 memset_io(tmpp, 0, sz); 428 flush_dcache_range((unsigned long)tmpp, 429 (unsigned long)tmpp + sz); 430 iounmap(tmpp); 431 432 return 0; 433 } 434 435 static int qman_fqd(struct reserved_mem *rmem) 436 { 437 fqd_a = rmem->base; 438 fqd_sz = rmem->size; 439 440 WARN_ON(!(fqd_a && fqd_sz)); 441 return 0; 442 } 443 RESERVEDMEM_OF_DECLARE(qman_fqd, "fsl,qman-fqd", qman_fqd); 444 445 static int qman_pfdr(struct reserved_mem *rmem) 446 { 447 pfdr_a = rmem->base; 448 pfdr_sz = rmem->size; 449 450 WARN_ON(!(pfdr_a && pfdr_sz)); 451 452 return 0; 453 } 454 RESERVEDMEM_OF_DECLARE(qman_pfdr, "fsl,qman-pfdr", qman_pfdr); 455 456 #endif 457 458 static unsigned int qm_get_fqid_maxcnt(void) 459 { 460 return fqd_sz / 64; 461 } 462 463 static void log_edata_bits(struct device *dev, u32 bit_count) 464 { 465 u32 i, j, mask = 0xffffffff; 466 467 dev_warn(dev, "ErrInt, EDATA:\n"); 468 i = bit_count / 32; 469 if (bit_count % 32) { 470 i++; 471 mask = ~(mask << bit_count % 32); 472 } 473 j = 16 - i; 474 dev_warn(dev, " 0x%08x\n", qm_ccsr_in(REG_EDATA(j)) & mask); 475 j++; 476 for (; j < 16; j++) 477 dev_warn(dev, " 0x%08x\n", qm_ccsr_in(REG_EDATA(j))); 478 } 479 480 static void log_additional_error_info(struct device *dev, u32 isr_val, 481 u32 ecsr_val) 482 { 483 struct qm_ecir ecir_val; 484 struct qm_eadr eadr_val; 485 int memid; 486 487 ecir_val.info = qm_ccsr_in(REG_ECIR); 488 /* Is portal info valid */ 489 if ((qman_ip_rev & 0xFF00) >= QMAN_REV30) { 490 struct qm_ecir2 ecir2_val; 491 492 ecir2_val.info = qm_ccsr_in(REG_ECIR2); 493 if (ecsr_val & PORTAL_ECSR_ERR) { 494 dev_warn(dev, "ErrInt: %s id %d\n", 495 qm_ecir2_is_dcp(&ecir2_val) ? "DCP" : "SWP", 496 qm_ecir2_get_pnum(&ecir2_val)); 497 } 498 if (ecsr_val & (FQID_ECSR_ERR | QM_EIRQ_IECE)) 499 dev_warn(dev, "ErrInt: ecir.fqid 0x%x\n", 500 qm_ecir_get_fqid(&ecir_val)); 501 502 if (ecsr_val & (QM_EIRQ_SBEI|QM_EIRQ_MBEI)) { 503 eadr_val.info = qm_ccsr_in(REG_EADR); 504 memid = qm_eadr_v3_get_memid(&eadr_val); 505 dev_warn(dev, "ErrInt: EADR Memory: %s, 0x%x\n", 506 error_mdata[memid].txt, 507 error_mdata[memid].addr_mask 508 & qm_eadr_v3_get_eadr(&eadr_val)); 509 log_edata_bits(dev, error_mdata[memid].bits); 510 } 511 } else { 512 if (ecsr_val & PORTAL_ECSR_ERR) { 513 dev_warn(dev, "ErrInt: %s id %d\n", 514 qm_ecir_is_dcp(&ecir_val) ? "DCP" : "SWP", 515 qm_ecir_get_pnum(&ecir_val)); 516 } 517 if (ecsr_val & FQID_ECSR_ERR) 518 dev_warn(dev, "ErrInt: ecir.fqid 0x%x\n", 519 qm_ecir_get_fqid(&ecir_val)); 520 521 if (ecsr_val & (QM_EIRQ_SBEI|QM_EIRQ_MBEI)) { 522 eadr_val.info = qm_ccsr_in(REG_EADR); 523 memid = qm_eadr_get_memid(&eadr_val); 524 dev_warn(dev, "ErrInt: EADR Memory: %s, 0x%x\n", 525 error_mdata[memid].txt, 526 error_mdata[memid].addr_mask 527 & qm_eadr_get_eadr(&eadr_val)); 528 log_edata_bits(dev, error_mdata[memid].bits); 529 } 530 } 531 } 532 533 static irqreturn_t qman_isr(int irq, void *ptr) 534 { 535 u32 isr_val, ier_val, ecsr_val, isr_mask, i; 536 struct device *dev = ptr; 537 538 ier_val = qm_ccsr_in(REG_ERR_IER); 539 isr_val = qm_ccsr_in(REG_ERR_ISR); 540 ecsr_val = qm_ccsr_in(REG_ECSR); 541 isr_mask = isr_val & ier_val; 542 543 if (!isr_mask) 544 return IRQ_NONE; 545 546 for (i = 0; i < ARRAY_SIZE(qman_hwerr_txts); i++) { 547 if (qman_hwerr_txts[i].mask & isr_mask) { 548 dev_err_ratelimited(dev, "ErrInt: %s\n", 549 qman_hwerr_txts[i].txt); 550 if (qman_hwerr_txts[i].mask & ecsr_val) { 551 log_additional_error_info(dev, isr_mask, 552 ecsr_val); 553 /* Re-arm error capture registers */ 554 qm_ccsr_out(REG_ECSR, ecsr_val); 555 } 556 if (qman_hwerr_txts[i].mask & QMAN_ERRS_TO_DISABLE) { 557 dev_dbg(dev, "Disabling error 0x%x\n", 558 qman_hwerr_txts[i].mask); 559 ier_val &= ~qman_hwerr_txts[i].mask; 560 qm_ccsr_out(REG_ERR_IER, ier_val); 561 } 562 } 563 } 564 qm_ccsr_out(REG_ERR_ISR, isr_val); 565 566 return IRQ_HANDLED; 567 } 568 569 static int qman_init_ccsr(struct device *dev) 570 { 571 int i, err; 572 573 /* FQD memory */ 574 qm_set_memory(qm_memory_fqd, fqd_a, fqd_sz); 575 /* PFDR memory */ 576 qm_set_memory(qm_memory_pfdr, pfdr_a, pfdr_sz); 577 err = qm_init_pfdr(dev, 8, pfdr_sz / 64 - 8); 578 if (err) 579 return err; 580 /* thresholds */ 581 qm_set_pfdr_threshold(512, 64); 582 qm_set_sfdr_threshold(128); 583 /* clear stale PEBI bit from interrupt status register */ 584 qm_ccsr_out(REG_ERR_ISR, QM_EIRQ_PEBI); 585 /* corenet initiator settings */ 586 qm_set_corenet_initiator(); 587 /* HID settings */ 588 qm_set_hid(); 589 /* Set scheduling weights to defaults */ 590 for (i = qm_wq_first; i <= qm_wq_last; i++) 591 qm_set_wq_scheduling(i, 0, 0, 0, 0, 0, 0, 0); 592 /* We are not prepared to accept ERNs for hardware enqueues */ 593 qm_set_dc(qm_dc_portal_fman0, 1, 0); 594 qm_set_dc(qm_dc_portal_fman1, 1, 0); 595 return 0; 596 } 597 598 #define LIO_CFG_LIODN_MASK 0x0fff0000 599 void qman_liodn_fixup(u16 channel) 600 { 601 static int done; 602 static u32 liodn_offset; 603 u32 before, after; 604 int idx = channel - QM_CHANNEL_SWPORTAL0; 605 606 if ((qman_ip_rev & 0xFF00) >= QMAN_REV30) 607 before = qm_ccsr_in(REG_REV3_QCSP_LIO_CFG(idx)); 608 else 609 before = qm_ccsr_in(REG_QCSP_LIO_CFG(idx)); 610 if (!done) { 611 liodn_offset = before & LIO_CFG_LIODN_MASK; 612 done = 1; 613 return; 614 } 615 after = (before & (~LIO_CFG_LIODN_MASK)) | liodn_offset; 616 if ((qman_ip_rev & 0xFF00) >= QMAN_REV30) 617 qm_ccsr_out(REG_REV3_QCSP_LIO_CFG(idx), after); 618 else 619 qm_ccsr_out(REG_QCSP_LIO_CFG(idx), after); 620 } 621 622 #define IO_CFG_SDEST_MASK 0x00ff0000 623 void qman_set_sdest(u16 channel, unsigned int cpu_idx) 624 { 625 int idx = channel - QM_CHANNEL_SWPORTAL0; 626 u32 before, after; 627 628 if ((qman_ip_rev & 0xFF00) >= QMAN_REV30) { 629 before = qm_ccsr_in(REG_REV3_QCSP_IO_CFG(idx)); 630 /* Each pair of vcpu share the same SRQ(SDEST) */ 631 cpu_idx /= 2; 632 after = (before & (~IO_CFG_SDEST_MASK)) | (cpu_idx << 16); 633 qm_ccsr_out(REG_REV3_QCSP_IO_CFG(idx), after); 634 } else { 635 before = qm_ccsr_in(REG_QCSP_IO_CFG(idx)); 636 after = (before & (~IO_CFG_SDEST_MASK)) | (cpu_idx << 16); 637 qm_ccsr_out(REG_QCSP_IO_CFG(idx), after); 638 } 639 } 640 641 static int qman_resource_init(struct device *dev) 642 { 643 int pool_chan_num, cgrid_num; 644 int ret, i; 645 646 switch (qman_ip_rev >> 8) { 647 case 1: 648 pool_chan_num = 15; 649 cgrid_num = 256; 650 break; 651 case 2: 652 pool_chan_num = 3; 653 cgrid_num = 64; 654 break; 655 case 3: 656 pool_chan_num = 15; 657 cgrid_num = 256; 658 break; 659 default: 660 return -ENODEV; 661 } 662 663 ret = gen_pool_add(qm_qpalloc, qm_channel_pool1 | DPAA_GENALLOC_OFF, 664 pool_chan_num, -1); 665 if (ret) { 666 dev_err(dev, "Failed to seed pool channels (%d)\n", ret); 667 return ret; 668 } 669 670 ret = gen_pool_add(qm_cgralloc, DPAA_GENALLOC_OFF, cgrid_num, -1); 671 if (ret) { 672 dev_err(dev, "Failed to seed CGRID range (%d)\n", ret); 673 return ret; 674 } 675 676 /* parse pool channels into the SDQCR mask */ 677 for (i = 0; i < cgrid_num; i++) 678 qm_pools_sdqcr |= QM_SDQCR_CHANNELS_POOL_CONV(i); 679 680 ret = gen_pool_add(qm_fqalloc, QM_FQID_RANGE_START | DPAA_GENALLOC_OFF, 681 qm_get_fqid_maxcnt() - QM_FQID_RANGE_START, -1); 682 if (ret) { 683 dev_err(dev, "Failed to seed FQID range (%d)\n", ret); 684 return ret; 685 } 686 687 return 0; 688 } 689 690 int qman_is_probed(void) 691 { 692 return __qman_probed; 693 } 694 EXPORT_SYMBOL_GPL(qman_is_probed); 695 696 static int fsl_qman_probe(struct platform_device *pdev) 697 { 698 struct device *dev = &pdev->dev; 699 struct device_node *node = dev->of_node; 700 struct resource *res; 701 int ret, err_irq; 702 u16 id; 703 u8 major, minor; 704 705 __qman_probed = -1; 706 707 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 708 if (!res) { 709 dev_err(dev, "Can't get %pOF property 'IORESOURCE_MEM'\n", 710 node); 711 return -ENXIO; 712 } 713 qm_ccsr_start = devm_ioremap(dev, res->start, resource_size(res)); 714 if (!qm_ccsr_start) 715 return -ENXIO; 716 717 qm_get_version(&id, &major, &minor); 718 if (major == 1 && minor == 0) { 719 dev_err(dev, "Rev1.0 on P4080 rev1 is not supported!\n"); 720 return -ENODEV; 721 } else if (major == 1 && minor == 1) 722 qman_ip_rev = QMAN_REV11; 723 else if (major == 1 && minor == 2) 724 qman_ip_rev = QMAN_REV12; 725 else if (major == 2 && minor == 0) 726 qman_ip_rev = QMAN_REV20; 727 else if (major == 3 && minor == 0) 728 qman_ip_rev = QMAN_REV30; 729 else if (major == 3 && minor == 1) 730 qman_ip_rev = QMAN_REV31; 731 else if (major == 3 && minor == 2) 732 qman_ip_rev = QMAN_REV32; 733 else { 734 dev_err(dev, "Unknown QMan version\n"); 735 return -ENODEV; 736 } 737 738 if ((qman_ip_rev & 0xff00) >= QMAN_REV30) { 739 qm_channel_pool1 = QMAN_CHANNEL_POOL1_REV3; 740 qm_channel_caam = QMAN_CHANNEL_CAAM_REV3; 741 } 742 743 if (fqd_a) { 744 #ifdef CONFIG_PPC 745 /* 746 * For PPC backward DT compatibility 747 * FQD memory MUST be zero'd by software 748 */ 749 zero_priv_mem(fqd_a, fqd_sz); 750 #else 751 WARN(1, "Unexpected architecture using non shared-dma-mem reservations"); 752 #endif 753 } else { 754 /* 755 * Order of memory regions is assumed as FQD followed by PFDR 756 * in order to ensure allocations from the correct regions the 757 * driver initializes then allocates each piece in order 758 */ 759 ret = qbman_init_private_mem(dev, 0, &fqd_a, &fqd_sz); 760 if (ret) { 761 dev_err(dev, "qbman_init_private_mem() for FQD failed 0x%x\n", 762 ret); 763 return -ENODEV; 764 } 765 } 766 dev_dbg(dev, "Allocated FQD 0x%llx 0x%zx\n", fqd_a, fqd_sz); 767 768 if (!pfdr_a) { 769 /* Setup PFDR memory */ 770 ret = qbman_init_private_mem(dev, 1, &pfdr_a, &pfdr_sz); 771 if (ret) { 772 dev_err(dev, "qbman_init_private_mem() for PFDR failed 0x%x\n", 773 ret); 774 return -ENODEV; 775 } 776 } 777 dev_dbg(dev, "Allocated PFDR 0x%llx 0x%zx\n", pfdr_a, pfdr_sz); 778 779 ret = qman_init_ccsr(dev); 780 if (ret) { 781 dev_err(dev, "CCSR setup failed\n"); 782 return ret; 783 } 784 785 err_irq = platform_get_irq(pdev, 0); 786 if (err_irq <= 0) { 787 dev_info(dev, "Can't get %pOF property 'interrupts'\n", 788 node); 789 return -ENODEV; 790 } 791 ret = devm_request_irq(dev, err_irq, qman_isr, IRQF_SHARED, "qman-err", 792 dev); 793 if (ret) { 794 dev_err(dev, "devm_request_irq() failed %d for '%pOF'\n", 795 ret, node); 796 return ret; 797 } 798 799 /* 800 * Write-to-clear any stale bits, (eg. starvation being asserted prior 801 * to resource allocation during driver init). 802 */ 803 qm_ccsr_out(REG_ERR_ISR, 0xffffffff); 804 /* Enable Error Interrupts */ 805 qm_ccsr_out(REG_ERR_IER, 0xffffffff); 806 807 qm_fqalloc = devm_gen_pool_create(dev, 0, -1, "qman-fqalloc"); 808 if (IS_ERR(qm_fqalloc)) { 809 ret = PTR_ERR(qm_fqalloc); 810 dev_err(dev, "qman-fqalloc pool init failed (%d)\n", ret); 811 return ret; 812 } 813 814 qm_qpalloc = devm_gen_pool_create(dev, 0, -1, "qman-qpalloc"); 815 if (IS_ERR(qm_qpalloc)) { 816 ret = PTR_ERR(qm_qpalloc); 817 dev_err(dev, "qman-qpalloc pool init failed (%d)\n", ret); 818 return ret; 819 } 820 821 qm_cgralloc = devm_gen_pool_create(dev, 0, -1, "qman-cgralloc"); 822 if (IS_ERR(qm_cgralloc)) { 823 ret = PTR_ERR(qm_cgralloc); 824 dev_err(dev, "qman-cgralloc pool init failed (%d)\n", ret); 825 return ret; 826 } 827 828 ret = qman_resource_init(dev); 829 if (ret) 830 return ret; 831 832 ret = qman_alloc_fq_table(qm_get_fqid_maxcnt()); 833 if (ret) 834 return ret; 835 836 ret = qman_wq_alloc(); 837 if (ret) 838 return ret; 839 840 __qman_probed = 1; 841 842 return 0; 843 } 844 845 static const struct of_device_id fsl_qman_ids[] = { 846 { 847 .compatible = "fsl,qman", 848 }, 849 {} 850 }; 851 852 static struct platform_driver fsl_qman_driver = { 853 .driver = { 854 .name = KBUILD_MODNAME, 855 .of_match_table = fsl_qman_ids, 856 .suppress_bind_attrs = true, 857 }, 858 .probe = fsl_qman_probe, 859 }; 860 861 builtin_platform_driver(fsl_qman_driver); 862