1/* 2 * linux/arch/alpha/kernel/err_marvel.c 3 * 4 * Copyright (C) 2001 Jeff Wiedemeier (Compaq Computer Corporation) 5 * 6 */ 7 8#include <linux/init.h> 9#include <linux/pci.h> 10#include <linux/sched.h> 11 12#include <asm/io.h> 13#include <asm/console.h> 14#include <asm/core_marvel.h> 15#include <asm/hwrpb.h> 16#include <asm/smp.h> 17#include <asm/err_common.h> 18#include <asm/err_ev7.h> 19 20#include "err_impl.h" 21#include "proto.h" 22 23static void 24marvel_print_680_frame(struct ev7_lf_subpackets *lf_subpackets) 25{ 26#ifdef CONFIG_VERBOSE_MCHECK 27 struct ev7_pal_environmental_subpacket *env; 28 struct { int type; char *name; } ev_packets[] = { 29 { EL_TYPE__PAL__ENV__AMBIENT_TEMPERATURE, 30 "Ambient Temperature" }, 31 { EL_TYPE__PAL__ENV__AIRMOVER_FAN, 32 "AirMover / Fan" }, 33 { EL_TYPE__PAL__ENV__VOLTAGE, 34 "Voltage" }, 35 { EL_TYPE__PAL__ENV__INTRUSION, 36 "Intrusion" }, 37 { EL_TYPE__PAL__ENV__POWER_SUPPLY, 38 "Power Supply" }, 39 { EL_TYPE__PAL__ENV__LAN, 40 "LAN" }, 41 { EL_TYPE__PAL__ENV__HOT_PLUG, 42 "Hot Plug" }, 43 { 0, NULL } 44 }; 45 int i; 46 47 for (i = 0; ev_packets[i].type != 0; i++) { 48 env = lf_subpackets->env[ev7_lf_env_index(ev_packets[i].type)]; 49 if (!env) 50 continue; 51 52 printk("%s**%s event (cabinet %d, drawer %d)\n", 53 err_print_prefix, 54 ev_packets[i].name, 55 env->cabinet, 56 env->drawer); 57 printk("%s Module Type: 0x%x - Unit ID 0x%x - " 58 "Condition 0x%x\n", 59 err_print_prefix, 60 env->module_type, 61 env->unit_id, 62 env->condition); 63 } 64#endif /* CONFIG_VERBOSE_MCHECK */ 65} 66 67static int 68marvel_process_680_frame(struct ev7_lf_subpackets *lf_subpackets, int print) 69{ 70 int status = MCHK_DISPOSITION_UNKNOWN_ERROR; 71 int i; 72 73 for (i = ev7_lf_env_index(EL_TYPE__PAL__ENV__AMBIENT_TEMPERATURE); 74 i <= ev7_lf_env_index(EL_TYPE__PAL__ENV__HOT_PLUG); 75 i++) { 76 if (lf_subpackets->env[i]) 77 status = MCHK_DISPOSITION_REPORT; 78 } 79 80 if (print) 81 marvel_print_680_frame(lf_subpackets); 82 83 return status; 84} 85 86#ifdef CONFIG_VERBOSE_MCHECK 87 88static void 89marvel_print_err_cyc(u64 err_cyc) 90{ 91 static char *packet_desc[] = { 92 "No Error", 93 "UNKNOWN", 94 "1 cycle (1 or 2 flit packet)", 95 "2 cycles (3 flit packet)", 96 "9 cycles (18 flit packet)", 97 "10 cycles (19 flit packet)", 98 "UNKNOWN", 99 "UNKNOWN", 100 "UNKNOWN" 101 }; 102 103#define IO7__ERR_CYC__ODD_FLT (1UL << 0) 104#define IO7__ERR_CYC__EVN_FLT (1UL << 1) 105#define IO7__ERR_CYC__PACKET__S (6) 106#define IO7__ERR_CYC__PACKET__M (0x7) 107#define IO7__ERR_CYC__LOC (1UL << 5) 108#define IO7__ERR_CYC__CYCLE__S (2) 109#define IO7__ERR_CYC__CYCLE__M (0x7) 110 111 printk("%s Packet In Error: %s\n" 112 "%s Error in %s, cycle %ld%s%s\n", 113 err_print_prefix, 114 packet_desc[EXTRACT(err_cyc, IO7__ERR_CYC__PACKET)], 115 err_print_prefix, 116 (err_cyc & IO7__ERR_CYC__LOC) ? "DATA" : "HEADER", 117 EXTRACT(err_cyc, IO7__ERR_CYC__CYCLE), 118 (err_cyc & IO7__ERR_CYC__ODD_FLT) ? " [ODD Flit]": "", 119 (err_cyc & IO7__ERR_CYC__EVN_FLT) ? " [Even Flit]": ""); 120} 121 122static void 123marvel_print_po7_crrct_sym(u64 crrct_sym) 124{ 125#define IO7__PO7_CRRCT_SYM__SYN__S (0) 126#define IO7__PO7_CRRCT_SYM__SYN__M (0x7f) 127#define IO7__PO7_CRRCT_SYM__ERR_CYC__S (7) /* ERR_CYC + ODD_FLT + EVN_FLT */ 128#define IO7__PO7_CRRCT_SYM__ERR_CYC__M (0x1ff) 129 130 131 printk("%s Correctable Error Symptoms:\n" 132 "%s Syndrome: 0x%lx\n", 133 err_print_prefix, 134 err_print_prefix, EXTRACT(crrct_sym, IO7__PO7_CRRCT_SYM__SYN)); 135 marvel_print_err_cyc(EXTRACT(crrct_sym, IO7__PO7_CRRCT_SYM__ERR_CYC)); 136} 137 138static void 139marvel_print_po7_uncrr_sym(u64 uncrr_sym, u64 valid_mask) 140{ 141 static char *clk_names[] = { "_h[0]", "_h[1]", "_n[0]", "_n[1]" }; 142 static char *clk_decode[] = { 143 "No Error", 144 "One extra rising edge", 145 "Two extra rising edges", 146 "Lost one clock" 147 }; 148 static char *port_names[] = { "Port 0", "Port 1", 149 "Port 2", "Port 3", 150 "Unknown Port", "Unknown Port", 151 "Unknown Port", "Port 7" }; 152 int scratch, i; 153 154#define IO7__PO7_UNCRR_SYM__SYN__S (0) 155#define IO7__PO7_UNCRR_SYM__SYN__M (0x7f) 156#define IO7__PO7_UNCRR_SYM__ERR_CYC__S (7) /* ERR_CYC + ODD_FLT... */ 157#define IO7__PO7_UNCRR_SYM__ERR_CYC__M (0x1ff) /* ... + EVN_FLT */ 158#define IO7__PO7_UNCRR_SYM__CLK__S (16) 159#define IO7__PO7_UNCRR_SYM__CLK__M (0xff) 160#define IO7__PO7_UNCRR_SYM__CDT_OVF_TO__REQ (1UL << 24) 161#define IO7__PO7_UNCRR_SYM__CDT_OVF_TO__RIO (1UL << 25) 162#define IO7__PO7_UNCRR_SYM__CDT_OVF_TO__WIO (1UL << 26) 163#define IO7__PO7_UNCRR_SYM__CDT_OVF_TO__BLK (1UL << 27) 164#define IO7__PO7_UNCRR_SYM__CDT_OVF_TO__NBK (1UL << 28) 165#define IO7__PO7_UNCRR_SYM__OVF__READIO (1UL << 29) 166#define IO7__PO7_UNCRR_SYM__OVF__WRITEIO (1UL << 30) 167#define IO7__PO7_UNCRR_SYM__OVF__FWD (1UL << 31) 168#define IO7__PO7_UNCRR_SYM__VICTIM_SP__S (32) 169#define IO7__PO7_UNCRR_SYM__VICTIM_SP__M (0xff) 170#define IO7__PO7_UNCRR_SYM__DETECT_SP__S (40) 171#define IO7__PO7_UNCRR_SYM__DETECT_SP__M (0xff) 172#define IO7__PO7_UNCRR_SYM__STRV_VTR__S (48) 173#define IO7__PO7_UNCRR_SYM__STRV_VTR__M (0x3ff) 174 175#define IO7__STRV_VTR__LSI__INTX__S (0) 176#define IO7__STRV_VTR__LSI__INTX__M (0x3) 177#define IO7__STRV_VTR__LSI__SLOT__S (2) 178#define IO7__STRV_VTR__LSI__SLOT__M (0x7) 179#define IO7__STRV_VTR__LSI__BUS__S (5) 180#define IO7__STRV_VTR__LSI__BUS__M (0x3) 181#define IO7__STRV_VTR__MSI__INTNUM__S (0) 182#define IO7__STRV_VTR__MSI__INTNUM__M (0x1ff) 183#define IO7__STRV_VTR__IS_MSI (1UL << 9) 184 185 printk("%s Uncorrectable Error Symptoms:\n", err_print_prefix); 186 uncrr_sym &= valid_mask; 187 188 if (EXTRACT(valid_mask, IO7__PO7_UNCRR_SYM__SYN)) 189 printk("%s Syndrome: 0x%lx\n", 190 err_print_prefix, 191 EXTRACT(uncrr_sym, IO7__PO7_UNCRR_SYM__SYN)); 192 193 if (EXTRACT(valid_mask, IO7__PO7_UNCRR_SYM__ERR_CYC)) 194 marvel_print_err_cyc(EXTRACT(uncrr_sym, 195 IO7__PO7_UNCRR_SYM__ERR_CYC)); 196 197 scratch = EXTRACT(uncrr_sym, IO7__PO7_UNCRR_SYM__CLK); 198 for (i = 0; i < 4; i++, scratch >>= 2) { 199 if (scratch & 0x3) 200 printk("%s Clock %s: %s\n", 201 err_print_prefix, 202 clk_names[i], clk_decode[scratch & 0x3]); 203 } 204 205 if (uncrr_sym & IO7__PO7_UNCRR_SYM__CDT_OVF_TO__REQ) 206 printk("%s REQ Credit Timeout or Overflow\n", 207 err_print_prefix); 208 if (uncrr_sym & IO7__PO7_UNCRR_SYM__CDT_OVF_TO__RIO) 209 printk("%s RIO Credit Timeout or Overflow\n", 210 err_print_prefix); 211 if (uncrr_sym & IO7__PO7_UNCRR_SYM__CDT_OVF_TO__WIO) 212 printk("%s WIO Credit Timeout or Overflow\n", 213 err_print_prefix); 214 if (uncrr_sym & IO7__PO7_UNCRR_SYM__CDT_OVF_TO__BLK) 215 printk("%s BLK Credit Timeout or Overflow\n", 216 err_print_prefix); 217 if (uncrr_sym & IO7__PO7_UNCRR_SYM__CDT_OVF_TO__NBK) 218 printk("%s NBK Credit Timeout or Overflow\n", 219 err_print_prefix); 220 221 if (uncrr_sym & IO7__PO7_UNCRR_SYM__OVF__READIO) 222 printk("%s Read I/O Buffer Overflow\n", 223 err_print_prefix); 224 if (uncrr_sym & IO7__PO7_UNCRR_SYM__OVF__WRITEIO) 225 printk("%s Write I/O Buffer Overflow\n", 226 err_print_prefix); 227 if (uncrr_sym & IO7__PO7_UNCRR_SYM__OVF__FWD) 228 printk("%s FWD Buffer Overflow\n", 229 err_print_prefix); 230 231 if ((scratch = EXTRACT(uncrr_sym, IO7__PO7_UNCRR_SYM__VICTIM_SP))) { 232 int lost = scratch & (1UL << 4); 233 scratch &= ~lost; 234 for (i = 0; i < 8; i++, scratch >>= 1) { 235 if (!(scratch & 1)) 236 continue; 237 printk("%s Error Response sent to %s", 238 err_print_prefix, port_names[i]); 239 } 240 if (lost) 241 printk("%s Lost Error sent somewhere else\n", 242 err_print_prefix); 243 } 244 245 if ((scratch = EXTRACT(uncrr_sym, IO7__PO7_UNCRR_SYM__DETECT_SP))) { 246 for (i = 0; i < 8; i++, scratch >>= 1) { 247 if (!(scratch & 1)) 248 continue; 249 printk("%s Error Reported by %s", 250 err_print_prefix, port_names[i]); 251 } 252 } 253 254 if (EXTRACT(valid_mask, IO7__PO7_UNCRR_SYM__STRV_VTR)) { 255 char starvation_message[80]; 256 257 scratch = EXTRACT(uncrr_sym, IO7__PO7_UNCRR_SYM__STRV_VTR); 258 if (scratch & IO7__STRV_VTR__IS_MSI) 259 sprintf(starvation_message, 260 "MSI Interrupt 0x%x", 261 EXTRACT(scratch, IO7__STRV_VTR__MSI__INTNUM)); 262 else 263 sprintf(starvation_message, 264 "LSI INT%c for Bus:Slot (%d:%d)\n", 265 'A' + EXTRACT(scratch, 266 IO7__STRV_VTR__LSI__INTX), 267 EXTRACT(scratch, IO7__STRV_VTR__LSI__BUS), 268 EXTRACT(scratch, IO7__STRV_VTR__LSI__SLOT)); 269 270 printk("%s Starvation Int Trigger By: %s\n", 271 err_print_prefix, starvation_message); 272 } 273} 274 275static void 276marvel_print_po7_ugbge_sym(u64 ugbge_sym) 277{ 278 char opcode_str[10]; 279 280#define IO7__PO7_UGBGE_SYM__UPH_PKT_OFF__S (6) 281#define IO7__PO7_UGBGE_SYM__UPH_PKT_OFF__M (0xfffffffful) 282#define IO7__PO7_UGBGE_SYM__UPH_OPCODE__S (40) 283#define IO7__PO7_UGBGE_SYM__UPH_OPCODE__M (0xff) 284#define IO7__PO7_UGBGE_SYM__UPH_SRC_PORT__S (48) 285#define IO7__PO7_UGBGE_SYM__UPH_SRC_PORT__M (0xf) 286#define IO7__PO7_UGBGE_SYM__UPH_DEST_PID__S (52) 287#define IO7__PO7_UGBGE_SYM__UPH_DEST_PID__M (0x7ff) 288#define IO7__PO7_UGBGE_SYM__VALID (1UL << 63) 289 290 if (!(ugbge_sym & IO7__PO7_UGBGE_SYM__VALID)) 291 return; 292 293 switch(EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_OPCODE)) { 294 case 0x51: 295 sprintf(opcode_str, "Wr32"); 296 break; 297 case 0x50: 298 sprintf(opcode_str, "WrQW"); 299 break; 300 case 0x54: 301 sprintf(opcode_str, "WrIPR"); 302 break; 303 case 0xD8: 304 sprintf(opcode_str, "Victim"); 305 break; 306 case 0xC5: 307 sprintf(opcode_str, "BlkIO"); 308 break; 309 default: 310 sprintf(opcode_str, "0x%lx\n", 311 EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_OPCODE)); 312 break; 313 } 314 315 printk("%s Up Hose Garbage Symptom:\n" 316 "%s Source Port: %ld - Dest PID: %ld - OpCode: %s\n", 317 err_print_prefix, 318 err_print_prefix, 319 EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_SRC_PORT), 320 EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_DEST_PID), 321 opcode_str); 322 323 if (0xC5 != EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_OPCODE)) 324 printk("%s Packet Offset 0x%08lx\n", 325 err_print_prefix, 326 EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_PKT_OFF)); 327} 328 329static void 330marvel_print_po7_err_sum(struct ev7_pal_io_subpacket *io) 331{ 332 u64 uncrr_sym_valid = 0; 333 334#define IO7__PO7_ERRSUM__CR_SBE (1UL << 32) 335#define IO7__PO7_ERRSUM__CR_SBE2 (1UL << 33) 336#define IO7__PO7_ERRSUM__CR_PIO_WBYTE (1UL << 34) 337#define IO7__PO7_ERRSUM__CR_CSR_NXM (1UL << 35) 338#define IO7__PO7_ERRSUM__CR_RPID_ACV (1UL << 36) 339#define IO7__PO7_ERRSUM__CR_RSP_NXM (1UL << 37) 340#define IO7__PO7_ERRSUM__CR_ERR_RESP (1UL << 38) 341#define IO7__PO7_ERRSUM__CR_CLK_DERR (1UL << 39) 342#define IO7__PO7_ERRSUM__CR_DAT_DBE (1UL << 40) 343#define IO7__PO7_ERRSUM__CR_DAT_GRBG (1UL << 41) 344#define IO7__PO7_ERRSUM__MAF_TO (1UL << 42) 345#define IO7__PO7_ERRSUM__UGBGE (1UL << 43) 346#define IO7__PO7_ERRSUM__UN_MAF_LOST (1UL << 44) 347#define IO7__PO7_ERRSUM__UN_PKT_OVF (1UL << 45) 348#define IO7__PO7_ERRSUM__UN_CDT_OVF (1UL << 46) 349#define IO7__PO7_ERRSUM__UN_DEALLOC (1UL << 47) 350#define IO7__PO7_ERRSUM__BH_CDT_TO (1UL << 51) 351#define IO7__PO7_ERRSUM__BH_CLK_HDR (1UL << 52) 352#define IO7__PO7_ERRSUM__BH_DBE_HDR (1UL << 53) 353#define IO7__PO7_ERRSUM__BH_GBG_HDR (1UL << 54) 354#define IO7__PO7_ERRSUM__BH_BAD_CMD (1UL << 55) 355#define IO7__PO7_ERRSUM__HLT_INT (1UL << 56) 356#define IO7__PO7_ERRSUM__HP_INT (1UL << 57) 357#define IO7__PO7_ERRSUM__CRD_INT (1UL << 58) 358#define IO7__PO7_ERRSUM__STV_INT (1UL << 59) 359#define IO7__PO7_ERRSUM__HRD_INT (1UL << 60) 360#define IO7__PO7_ERRSUM__BH_SUM (1UL << 61) 361#define IO7__PO7_ERRSUM__ERR_LST (1UL << 62) 362#define IO7__PO7_ERRSUM__ERR_VALID (1UL << 63) 363 364#define IO7__PO7_ERRSUM__ERR_MASK (IO7__PO7_ERRSUM__ERR_VALID | \ 365 IO7__PO7_ERRSUM__CR_SBE) 366 367 /* 368 * Single bit errors aren't covered by ERR_VALID. 369 */ 370 if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_SBE) { 371 printk("%s %sSingle Bit Error(s) detected/corrected\n", 372 err_print_prefix, 373 (io->po7_error_sum & IO7__PO7_ERRSUM__CR_SBE2) 374 ? "Multiple " : ""); 375 marvel_print_po7_crrct_sym(io->po7_crrct_sym); 376 } 377 378 /* 379 * Neither are the interrupt status bits 380 */ 381 if (io->po7_error_sum & IO7__PO7_ERRSUM__HLT_INT) 382 printk("%s Halt Interrupt posted", err_print_prefix); 383 if (io->po7_error_sum & IO7__PO7_ERRSUM__HP_INT) { 384 printk("%s Hot Plug Event Interrupt posted", 385 err_print_prefix); 386 uncrr_sym_valid |= GEN_MASK(IO7__PO7_UNCRR_SYM__DETECT_SP); 387 } 388 if (io->po7_error_sum & IO7__PO7_ERRSUM__CRD_INT) 389 printk("%s Correctable Error Interrupt posted", 390 err_print_prefix); 391 if (io->po7_error_sum & IO7__PO7_ERRSUM__STV_INT) { 392 printk("%s Starvation Interrupt posted", err_print_prefix); 393 uncrr_sym_valid |= GEN_MASK(IO7__PO7_UNCRR_SYM__STRV_VTR); 394 } 395 if (io->po7_error_sum & IO7__PO7_ERRSUM__HRD_INT) { 396 printk("%s Hard Error Interrupt posted", err_print_prefix); 397 uncrr_sym_valid |= GEN_MASK(IO7__PO7_UNCRR_SYM__DETECT_SP); 398 } 399 400 /* 401 * Everything else is valid only with ERR_VALID, so skip to the end 402 * (uncrr_sym check) unless ERR_VALID is set. 403 */ 404 if (!(io->po7_error_sum & IO7__PO7_ERRSUM__ERR_VALID)) 405 goto check_uncrr_sym; 406 407 /* 408 * Since ERR_VALID is set, VICTIM_SP in uncrr_sym is valid. 409 * For bits [29:0] to also be valid, the following bits must 410 * not be set: 411 * CR_PIO_WBYTE CR_CSR_NXM CR_RSP_NXM 412 * CR_ERR_RESP MAF_TO 413 */ 414 uncrr_sym_valid |= GEN_MASK(IO7__PO7_UNCRR_SYM__VICTIM_SP); 415 if (!(io->po7_error_sum & (IO7__PO7_ERRSUM__CR_PIO_WBYTE | 416 IO7__PO7_ERRSUM__CR_CSR_NXM | 417 IO7__PO7_ERRSUM__CR_RSP_NXM | 418 IO7__PO7_ERRSUM__CR_ERR_RESP | 419 IO7__PO7_ERRSUM__MAF_TO))) 420 uncrr_sym_valid |= 0x3ffffffful; 421 422 if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_PIO_WBYTE) 423 printk("%s Write byte into IO7 CSR\n", err_print_prefix); 424 if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_CSR_NXM) 425 printk("%s PIO to non-existent CSR\n", err_print_prefix); 426 if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_RPID_ACV) 427 printk("%s Bus Requester PID (Access Violation)\n", 428 err_print_prefix); 429 if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_RSP_NXM) 430 printk("%s Received NXM response from EV7\n", 431 err_print_prefix); 432 if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_ERR_RESP) 433 printk("%s Received ERROR RESPONSE\n", err_print_prefix); 434 if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_CLK_DERR) 435 printk("%s Clock error on data flit\n", err_print_prefix); 436 if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_DAT_DBE) 437 printk("%s Double Bit Error Data Error Detected\n", 438 err_print_prefix); 439 if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_DAT_GRBG) 440 printk("%s Garbage Encoding Detected on the data\n", 441 err_print_prefix); 442 if (io->po7_error_sum & IO7__PO7_ERRSUM__UGBGE) { 443 printk("%s Garbage Encoding sent up hose\n", 444 err_print_prefix); 445 marvel_print_po7_ugbge_sym(io->po7_ugbge_sym); 446 } 447 if (io->po7_error_sum & IO7__PO7_ERRSUM__UN_MAF_LOST) 448 printk("%s Orphan response (unexpected response)\n", 449 err_print_prefix); 450 if (io->po7_error_sum & IO7__PO7_ERRSUM__UN_PKT_OVF) 451 printk("%s Down hose packet overflow\n", err_print_prefix); 452 if (io->po7_error_sum & IO7__PO7_ERRSUM__UN_CDT_OVF) 453 printk("%s Down hose credit overflow\n", err_print_prefix); 454 if (io->po7_error_sum & IO7__PO7_ERRSUM__UN_DEALLOC) 455 printk("%s Unexpected or bad dealloc field\n", 456 err_print_prefix); 457 458 /* 459 * The black hole events. 460 */ 461 if (io->po7_error_sum & IO7__PO7_ERRSUM__MAF_TO) 462 printk("%s BLACK HOLE: Timeout for all responses\n", 463 err_print_prefix); 464 if (io->po7_error_sum & IO7__PO7_ERRSUM__BH_CDT_TO) 465 printk("%s BLACK HOLE: Credit Timeout\n", err_print_prefix); 466 if (io->po7_error_sum & IO7__PO7_ERRSUM__BH_CLK_HDR) 467 printk("%s BLACK HOLE: Clock check on header\n", 468 err_print_prefix); 469 if (io->po7_error_sum & IO7__PO7_ERRSUM__BH_DBE_HDR) 470 printk("%s BLACK HOLE: Uncorrectable Error on header\n", 471 err_print_prefix); 472 if (io->po7_error_sum & IO7__PO7_ERRSUM__BH_GBG_HDR) 473 printk("%s BLACK HOLE: Garbage on header\n", 474 err_print_prefix); 475 if (io->po7_error_sum & IO7__PO7_ERRSUM__BH_BAD_CMD) 476 printk("%s BLACK HOLE: Bad EV7 command\n", 477 err_print_prefix); 478 479 if (io->po7_error_sum & IO7__PO7_ERRSUM__ERR_LST) 480 printk("%s Lost Error\n", err_print_prefix); 481 482 printk("%s Failing Packet:\n" 483 "%s Cycle 1: %016lx\n" 484 "%s Cycle 2: %016lx\n", 485 err_print_prefix, 486 err_print_prefix, io->po7_err_pkt0, 487 err_print_prefix, io->po7_err_pkt1); 488 /* 489 * If there are any valid bits in UNCRR sym for this err, 490 * print UNCRR_SYM as well. 491 */ 492check_uncrr_sym: 493 if (uncrr_sym_valid) 494 marvel_print_po7_uncrr_sym(io->po7_uncrr_sym, uncrr_sym_valid); 495} 496 497static void 498marvel_print_pox_tlb_err(u64 tlb_err) 499{ 500 static char *tlb_errors[] = { 501 "No Error", 502 "North Port Signaled Error fetching TLB entry", 503 "PTE invalid or UCC or GBG error on this entry", 504 "Address did not hit any DMA window" 505 }; 506 507#define IO7__POX_TLBERR__ERR_VALID (1UL << 63) 508#define IO7__POX_TLBERR__ERRCODE__S (0) 509#define IO7__POX_TLBERR__ERRCODE__M (0x3) 510#define IO7__POX_TLBERR__ERR_TLB_PTR__S (3) 511#define IO7__POX_TLBERR__ERR_TLB_PTR__M (0x7) 512#define IO7__POX_TLBERR__FADDR__S (6) 513#define IO7__POX_TLBERR__FADDR__M (0x3fffffffffful) 514 515 if (!(tlb_err & IO7__POX_TLBERR__ERR_VALID)) 516 return; 517 518 printk("%s TLB Error on index 0x%lx:\n" 519 "%s - %s\n" 520 "%s - Addr: 0x%016lx\n", 521 err_print_prefix, 522 EXTRACT(tlb_err, IO7__POX_TLBERR__ERR_TLB_PTR), 523 err_print_prefix, 524 tlb_errors[EXTRACT(tlb_err, IO7__POX_TLBERR__ERRCODE)], 525 err_print_prefix, 526 EXTRACT(tlb_err, IO7__POX_TLBERR__FADDR) << 6); 527} 528 529static void 530marvel_print_pox_spl_cmplt(u64 spl_cmplt) 531{ 532 char message[80]; 533 534#define IO7__POX_SPLCMPLT__MESSAGE__S (0) 535#define IO7__POX_SPLCMPLT__MESSAGE__M (0x0fffffffful) 536#define IO7__POX_SPLCMPLT__SOURCE_BUS__S (40) 537#define IO7__POX_SPLCMPLT__SOURCE_BUS__M (0xfful) 538#define IO7__POX_SPLCMPLT__SOURCE_DEV__S (35) 539#define IO7__POX_SPLCMPLT__SOURCE_DEV__M (0x1ful) 540#define IO7__POX_SPLCMPLT__SOURCE_FUNC__S (32) 541#define IO7__POX_SPLCMPLT__SOURCE_FUNC__M (0x07ul) 542 543#define IO7__POX_SPLCMPLT__MSG_CLASS__S (28) 544#define IO7__POX_SPLCMPLT__MSG_CLASS__M (0xf) 545#define IO7__POX_SPLCMPLT__MSG_INDEX__S (20) 546#define IO7__POX_SPLCMPLT__MSG_INDEX__M (0xff) 547#define IO7__POX_SPLCMPLT__MSG_CLASSINDEX__S (20) 548#define IO7__POX_SPLCMPLT__MSG_CLASSINDEX__M (0xfff) 549#define IO7__POX_SPLCMPLT__REM_LOWER_ADDR__S (12) 550#define IO7__POX_SPLCMPLT__REM_LOWER_ADDR__M (0x7f) 551#define IO7__POX_SPLCMPLT__REM_BYTE_COUNT__S (0) 552#define IO7__POX_SPLCMPLT__REM_BYTE_COUNT__M (0xfff) 553 554 printk("%s Split Completion Error:\n" 555 "%s Source (Bus:Dev:Func): %ld:%ld:%ld\n", 556 err_print_prefix, 557 err_print_prefix, 558 EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__SOURCE_BUS), 559 EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__SOURCE_DEV), 560 EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__SOURCE_FUNC)); 561 562 switch(EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__MSG_CLASSINDEX)) { 563 case 0x000: 564 sprintf(message, "Normal completion"); 565 break; 566 case 0x100: 567 sprintf(message, "Bridge - Master Abort"); 568 break; 569 case 0x101: 570 sprintf(message, "Bridge - Target Abort"); 571 break; 572 case 0x102: 573 sprintf(message, "Bridge - Uncorrectable Write Data Error"); 574 break; 575 case 0x200: 576 sprintf(message, "Byte Count Out of Range"); 577 break; 578 case 0x201: 579 sprintf(message, "Uncorrectable Split Write Data Error"); 580 break; 581 default: 582 sprintf(message, "%08lx\n", 583 EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__MESSAGE)); 584 break; 585 } 586 printk("%s Message: %s\n", err_print_prefix, message); 587} 588 589static void 590marvel_print_pox_trans_sum(u64 trans_sum) 591{ 592 char *pcix_cmd[] = { "Interrupt Acknowledge", 593 "Special Cycle", 594 "I/O Read", 595 "I/O Write", 596 "Reserved", 597 "Reserved / Device ID Message", 598 "Memory Read", 599 "Memory Write", 600 "Reserved / Alias to Memory Read Block", 601 "Reserved / Alias to Memory Write Block", 602 "Configuration Read", 603 "Configuration Write", 604 "Memory Read Multiple / Split Completion", 605 "Dual Address Cycle", 606 "Memory Read Line / Memory Read Block", 607 "Memory Write and Invalidate / Memory Write Block" 608 }; 609 610#define IO7__POX_TRANSUM__PCI_ADDR__S (0) 611#define IO7__POX_TRANSUM__PCI_ADDR__M (0x3fffffffffffful) 612#define IO7__POX_TRANSUM__DAC (1UL << 50) 613#define IO7__POX_TRANSUM__PCIX_MASTER_SLOT__S (52) 614#define IO7__POX_TRANSUM__PCIX_MASTER_SLOT__M (0xf) 615#define IO7__POX_TRANSUM__PCIX_CMD__S (56) 616#define IO7__POX_TRANSUM__PCIX_CMD__M (0xf) 617#define IO7__POX_TRANSUM__ERR_VALID (1UL << 63) 618 619 if (!(trans_sum & IO7__POX_TRANSUM__ERR_VALID)) 620 return; 621 622 printk("%s Transaction Summary:\n" 623 "%s Command: 0x%lx - %s\n" 624 "%s Address: 0x%016lx%s\n" 625 "%s PCI-X Master Slot: 0x%lx\n", 626 err_print_prefix, 627 err_print_prefix, 628 EXTRACT(trans_sum, IO7__POX_TRANSUM__PCIX_CMD), 629 pcix_cmd[EXTRACT(trans_sum, IO7__POX_TRANSUM__PCIX_CMD)], 630 err_print_prefix, 631 EXTRACT(trans_sum, IO7__POX_TRANSUM__PCI_ADDR), 632 (trans_sum & IO7__POX_TRANSUM__DAC) ? " (DAC)" : "", 633 err_print_prefix, 634 EXTRACT(trans_sum, IO7__POX_TRANSUM__PCIX_MASTER_SLOT)); 635} 636 637static void 638marvel_print_pox_err(u64 err_sum, struct ev7_pal_io_one_port *port) 639{ 640#define IO7__POX_ERRSUM__AGP_REQQ_OVFL (1UL << 4) 641#define IO7__POX_ERRSUM__AGP_SYNC_ERR (1UL << 5) 642#define IO7__POX_ERRSUM__MRETRY_TO (1UL << 6) 643#define IO7__POX_ERRSUM__PCIX_UX_SPL (1UL << 7) 644#define IO7__POX_ERRSUM__PCIX_SPLIT_TO (1UL << 8) 645#define IO7__POX_ERRSUM__PCIX_DISCARD_SPL (1UL << 9) 646#define IO7__POX_ERRSUM__DMA_RD_TO (1UL << 10) 647#define IO7__POX_ERRSUM__CSR_NXM_RD (1UL << 11) 648#define IO7__POX_ERRSUM__CSR_NXM_WR (1UL << 12) 649#define IO7__POX_ERRSUM__DMA_TO (1UL << 13) 650#define IO7__POX_ERRSUM__ALL_MABORTS (1UL << 14) 651#define IO7__POX_ERRSUM__MABORT (1UL << 15) 652#define IO7__POX_ERRSUM__MABORT_MASK (IO7__POX_ERRSUM__ALL_MABORTS|\ 653 IO7__POX_ERRSUM__MABORT) 654#define IO7__POX_ERRSUM__PT_TABORT (1UL << 16) 655#define IO7__POX_ERRSUM__PM_TABORT (1UL << 17) 656#define IO7__POX_ERRSUM__TABORT_MASK (IO7__POX_ERRSUM__PT_TABORT | \ 657 IO7__POX_ERRSUM__PM_TABORT) 658#define IO7__POX_ERRSUM__SERR (1UL << 18) 659#define IO7__POX_ERRSUM__ADDRERR_STB (1UL << 19) 660#define IO7__POX_ERRSUM__DETECTED_SERR (1UL << 20) 661#define IO7__POX_ERRSUM__PERR (1UL << 21) 662#define IO7__POX_ERRSUM__DATAERR_STB_NIOW (1UL << 22) 663#define IO7__POX_ERRSUM__DETECTED_PERR (1UL << 23) 664#define IO7__POX_ERRSUM__PM_PERR (1UL << 24) 665#define IO7__POX_ERRSUM__PT_SCERROR (1UL << 26) 666#define IO7__POX_ERRSUM__HUNG_BUS (1UL << 28) 667#define IO7__POX_ERRSUM__UPE_ERROR__S (51) 668#define IO7__POX_ERRSUM__UPE_ERROR__M (0xffUL) 669#define IO7__POX_ERRSUM__UPE_ERROR GEN_MASK(IO7__POX_ERRSUM__UPE_ERROR) 670#define IO7__POX_ERRSUM__TLB_ERR (1UL << 59) 671#define IO7__POX_ERRSUM__ERR_VALID (1UL << 63) 672 673#define IO7__POX_ERRSUM__TRANS_SUM__MASK (IO7__POX_ERRSUM__MRETRY_TO | \ 674 IO7__POX_ERRSUM__PCIX_UX_SPL | \ 675 IO7__POX_ERRSUM__PCIX_SPLIT_TO | \ 676 IO7__POX_ERRSUM__DMA_TO | \ 677 IO7__POX_ERRSUM__MABORT_MASK | \ 678 IO7__POX_ERRSUM__TABORT_MASK | \ 679 IO7__POX_ERRSUM__SERR | \ 680 IO7__POX_ERRSUM__ADDRERR_STB | \ 681 IO7__POX_ERRSUM__PERR | \ 682 IO7__POX_ERRSUM__DATAERR_STB_NIOW |\ 683 IO7__POX_ERRSUM__DETECTED_PERR | \ 684 IO7__POX_ERRSUM__PM_PERR | \ 685 IO7__POX_ERRSUM__PT_SCERROR | \ 686 IO7__POX_ERRSUM__UPE_ERROR) 687 688 if (!(err_sum & IO7__POX_ERRSUM__ERR_VALID)) 689 return; 690 691 /* 692 * First the transaction summary errors 693 */ 694 if (err_sum & IO7__POX_ERRSUM__MRETRY_TO) 695 printk("%s IO7 Master Retry Timeout expired\n", 696 err_print_prefix); 697 if (err_sum & IO7__POX_ERRSUM__PCIX_UX_SPL) 698 printk("%s Unexpected Split Completion\n", 699 err_print_prefix); 700 if (err_sum & IO7__POX_ERRSUM__PCIX_SPLIT_TO) 701 printk("%s IO7 Split Completion Timeout expired\n", 702 err_print_prefix); 703 if (err_sum & IO7__POX_ERRSUM__DMA_TO) 704 printk("%s Hung bus during DMA transaction\n", 705 err_print_prefix); 706 if (err_sum & IO7__POX_ERRSUM__MABORT_MASK) 707 printk("%s Master Abort\n", err_print_prefix); 708 if (err_sum & IO7__POX_ERRSUM__PT_TABORT) 709 printk("%s IO7 Asserted Target Abort\n", err_print_prefix); 710 if (err_sum & IO7__POX_ERRSUM__PM_TABORT) 711 printk("%s IO7 Received Target Abort\n", err_print_prefix); 712 if (err_sum & IO7__POX_ERRSUM__ADDRERR_STB) { 713 printk("%s Address or PCI-X Attribute Parity Error\n", 714 err_print_prefix); 715 if (err_sum & IO7__POX_ERRSUM__SERR) 716 printk("%s IO7 Asserted SERR\n", err_print_prefix); 717 } 718 if (err_sum & IO7__POX_ERRSUM__PERR) { 719 if (err_sum & IO7__POX_ERRSUM__DATAERR_STB_NIOW) 720 printk("%s IO7 Detected Data Parity Error\n", 721 err_print_prefix); 722 else 723 printk("%s Split Completion Response with " 724 "Parity Error\n", err_print_prefix); 725 } 726 if (err_sum & IO7__POX_ERRSUM__DETECTED_PERR) 727 printk("%s PERR detected\n", err_print_prefix); 728 if (err_sum & IO7__POX_ERRSUM__PM_PERR) 729 printk("%s PERR while IO7 is master\n", err_print_prefix); 730 if (err_sum & IO7__POX_ERRSUM__PT_SCERROR) { 731 printk("%s IO7 Received Split Completion Error message\n", 732 err_print_prefix); 733 marvel_print_pox_spl_cmplt(port->pox_spl_cmplt); 734 } 735 if (err_sum & IO7__POX_ERRSUM__UPE_ERROR) { 736 unsigned int upe_error = EXTRACT(err_sum, 737 IO7__POX_ERRSUM__UPE_ERROR); 738 int i; 739 static char *upe_errors[] = { 740 "Parity Error on MSI write data", 741 "MSI read (MSI window is write only", 742 "TLB - Invalid WR transaction", 743 "TLB - Invalid RD transaction", 744 "DMA - WR error (see north port)", 745 "DMA - RD error (see north port)", 746 "PPR - WR error (see north port)", 747 "PPR - RD error (see north port)" 748 }; 749 750 printk("%s UPE Error:\n", err_print_prefix); 751 for (i = 0; i < 8; i++) { 752 if (upe_error & (1 << i)) 753 printk("%s %s\n", err_print_prefix, 754 upe_errors[i]); 755 } 756 } 757 758 /* 759 * POx_TRANS_SUM, if appropriate. 760 */ 761 if (err_sum & IO7__POX_ERRSUM__TRANS_SUM__MASK) 762 marvel_print_pox_trans_sum(port->pox_trans_sum); 763 764 /* 765 * Then TLB_ERR. 766 */ 767 if (err_sum & IO7__POX_ERRSUM__TLB_ERR) { 768 printk("%s TLB ERROR\n", err_print_prefix); 769 marvel_print_pox_tlb_err(port->pox_tlb_err); 770 } 771 772 /* 773 * And the single bit status errors. 774 */ 775 if (err_sum & IO7__POX_ERRSUM__AGP_REQQ_OVFL) 776 printk("%s AGP Request Queue Overflow\n", err_print_prefix); 777 if (err_sum & IO7__POX_ERRSUM__AGP_SYNC_ERR) 778 printk("%s AGP Sync Error\n", err_print_prefix); 779 if (err_sum & IO7__POX_ERRSUM__PCIX_DISCARD_SPL) 780 printk("%s Discarded split completion\n", err_print_prefix); 781 if (err_sum & IO7__POX_ERRSUM__DMA_RD_TO) 782 printk("%s DMA Read Timeout\n", err_print_prefix); 783 if (err_sum & IO7__POX_ERRSUM__CSR_NXM_RD) 784 printk("%s CSR NXM READ\n", err_print_prefix); 785 if (err_sum & IO7__POX_ERRSUM__CSR_NXM_WR) 786 printk("%s CSR NXM WRITE\n", err_print_prefix); 787 if (err_sum & IO7__POX_ERRSUM__DETECTED_SERR) 788 printk("%s SERR detected\n", err_print_prefix); 789 if (err_sum & IO7__POX_ERRSUM__HUNG_BUS) 790 printk("%s HUNG BUS detected\n", err_print_prefix); 791} 792 793#endif /* CONFIG_VERBOSE_MCHECK */ 794 795static struct ev7_pal_io_subpacket * 796marvel_find_io7_with_error(struct ev7_lf_subpackets *lf_subpackets) 797{ 798 struct ev7_pal_io_subpacket *io = lf_subpackets->io; 799 struct io7 *io7; 800 int i; 801 802 /* 803 * Caller must provide the packet to fill 804 */ 805 if (!io) 806 return NULL; 807 808 /* 809 * Fill the subpacket with the console's standard fill pattern 810 */ 811 memset(io, 0x55, sizeof(*io)); 812 813 for (io7 = NULL; NULL != (io7 = marvel_next_io7(io7)); ) { 814 unsigned long err_sum = 0; 815 816 err_sum |= io7->csrs->PO7_ERROR_SUM.csr; 817 for (i = 0; i < IO7_NUM_PORTS; i++) { 818 if (!io7->ports[i].enabled) 819 continue; 820 err_sum |= io7->ports[i].csrs->POx_ERR_SUM.csr; 821 } 822 823 /* 824 * Is there at least one error? 825 */ 826 if (err_sum & (1UL << 63)) 827 break; 828 } 829 830 /* 831 * Did we find an IO7 with an error? 832 */ 833 if (!io7) 834 return NULL; 835 836 /* 837 * We have an IO7 with an error. 838 * 839 * Fill in the IO subpacket. 840 */ 841 io->io_asic_rev = io7->csrs->IO_ASIC_REV.csr; 842 io->io_sys_rev = io7->csrs->IO_SYS_REV.csr; 843 io->io7_uph = io7->csrs->IO7_UPH.csr; 844 io->hpi_ctl = io7->csrs->HPI_CTL.csr; 845 io->crd_ctl = io7->csrs->CRD_CTL.csr; 846 io->hei_ctl = io7->csrs->HEI_CTL.csr; 847 io->po7_error_sum = io7->csrs->PO7_ERROR_SUM.csr; 848 io->po7_uncrr_sym = io7->csrs->PO7_UNCRR_SYM.csr; 849 io->po7_crrct_sym = io7->csrs->PO7_CRRCT_SYM.csr; 850 io->po7_ugbge_sym = io7->csrs->PO7_UGBGE_SYM.csr; 851 io->po7_err_pkt0 = io7->csrs->PO7_ERR_PKT[0].csr; 852 io->po7_err_pkt1 = io7->csrs->PO7_ERR_PKT[1].csr; 853 854 for (i = 0; i < IO7_NUM_PORTS; i++) { 855 io7_ioport_csrs *csrs = io7->ports[i].csrs; 856 857 if (!io7->ports[i].enabled) 858 continue; 859 860 io->ports[i].pox_err_sum = csrs->POx_ERR_SUM.csr; 861 io->ports[i].pox_tlb_err = csrs->POx_TLB_ERR.csr; 862 io->ports[i].pox_spl_cmplt = csrs->POx_SPL_COMPLT.csr; 863 io->ports[i].pox_trans_sum = csrs->POx_TRANS_SUM.csr; 864 io->ports[i].pox_first_err = csrs->POx_FIRST_ERR.csr; 865 io->ports[i].pox_mult_err = csrs->POx_MULT_ERR.csr; 866 io->ports[i].pox_dm_source = csrs->POx_DM_SOURCE.csr; 867 io->ports[i].pox_dm_dest = csrs->POx_DM_DEST.csr; 868 io->ports[i].pox_dm_size = csrs->POx_DM_SIZE.csr; 869 io->ports[i].pox_dm_ctrl = csrs->POx_DM_CTRL.csr; 870 871 /* 872 * Ack this port's errors, if any. POx_ERR_SUM must be last. 873 * 874 * Most of the error registers get cleared and unlocked when 875 * the associated bits in POx_ERR_SUM are cleared (by writing 876 * 1). POx_TLB_ERR is an exception and must be explicitly 877 * cleared. 878 */ 879 csrs->POx_TLB_ERR.csr = io->ports[i].pox_tlb_err; 880 csrs->POx_ERR_SUM.csr = io->ports[i].pox_err_sum; 881 mb(); 882 csrs->POx_ERR_SUM.csr; 883 } 884 885 /* 886 * Ack any port 7 error(s). 887 */ 888 io7->csrs->PO7_ERROR_SUM.csr = io->po7_error_sum; 889 mb(); 890 io7->csrs->PO7_ERROR_SUM.csr; 891 892 /* 893 * Correct the io7_pid. 894 */ 895 lf_subpackets->io_pid = io7->pe; 896 897 return io; 898} 899 900static int 901marvel_process_io_error(struct ev7_lf_subpackets *lf_subpackets, int print) 902{ 903 int status = MCHK_DISPOSITION_UNKNOWN_ERROR; 904 905#ifdef CONFIG_VERBOSE_MCHECK 906 struct ev7_pal_io_subpacket *io = lf_subpackets->io; 907 int i; 908#endif /* CONFIG_VERBOSE_MCHECK */ 909 910#define MARVEL_IO_ERR_VALID(x) ((x) & (1UL << 63)) 911 912 if (!lf_subpackets->logout || !lf_subpackets->io) 913 return status; 914 915 /* 916 * The PALcode only builds an IO subpacket if there is a 917 * locally connected IO7. In the cases of 918 * 1) a uniprocessor kernel 919 * 2) an mp kernel before the local secondary has called in 920 * error interrupts are all directed to the primary processor. 921 * In that case, we may not have an IO subpacket at all and, event 922 * if we do, it may not be the right now. 923 * 924 * If the RBOX indicates an I/O error interrupt, make sure we have 925 * the correct IO7 information. If we don't have an IO subpacket 926 * or it's the wrong one, try to find the right one. 927 * 928 * RBOX I/O error interrupts are indicated by RBOX_INT<29> and 929 * RBOX_INT<10>. 930 */ 931 if ((lf_subpackets->io->po7_error_sum & (1UL << 32)) || 932 ((lf_subpackets->io->po7_error_sum | 933 lf_subpackets->io->ports[0].pox_err_sum | 934 lf_subpackets->io->ports[1].pox_err_sum | 935 lf_subpackets->io->ports[2].pox_err_sum | 936 lf_subpackets->io->ports[3].pox_err_sum) & (1UL << 63))) { 937 /* 938 * Either we have no IO subpacket or no error is 939 * indicated in the one we do have. Try find the 940 * one with the error. 941 */ 942 if (!marvel_find_io7_with_error(lf_subpackets)) 943 return status; 944 } 945 946 /* 947 * We have an IO7 indicating an error - we're going to report it 948 */ 949 status = MCHK_DISPOSITION_REPORT; 950 951#ifdef CONFIG_VERBOSE_MCHECK 952 953 if (!print) 954 return status; 955 956 printk("%s*Error occurred on IO7 at PID %u\n", 957 err_print_prefix, lf_subpackets->io_pid); 958 959 /* 960 * Check port 7 first 961 */ 962 if (lf_subpackets->io->po7_error_sum & IO7__PO7_ERRSUM__ERR_MASK) { 963 marvel_print_po7_err_sum(io); 964 965 } 966 967 /* 968 * Then loop through the ports 969 */ 970 for (i = 0; i < IO7_NUM_PORTS; i++) { 971 if (!MARVEL_IO_ERR_VALID(io->ports[i].pox_err_sum)) 972 continue; 973 974 printk("%s PID %u PORT %d POx_ERR_SUM: %016lx\n", 975 err_print_prefix, 976 lf_subpackets->io_pid, i, io->ports[i].pox_err_sum); 977 marvel_print_pox_err(io->ports[i].pox_err_sum, &io->ports[i]); 978 979 printk("%s [ POx_FIRST_ERR: %016lx ]\n", 980 err_print_prefix, io->ports[i].pox_first_err); 981 marvel_print_pox_err(io->ports[i].pox_first_err, 982 &io->ports[i]); 983 984 } 985 986 987#endif /* CONFIG_VERBOSE_MCHECK */ 988 989 return status; 990} 991 992static int 993marvel_process_logout_frame(struct ev7_lf_subpackets *lf_subpackets, int print) 994{ 995 int status = MCHK_DISPOSITION_UNKNOWN_ERROR; 996 997 /* 998 * I/O error? 999 */ 1000#define EV7__RBOX_INT__IO_ERROR__MASK 0x20000400ul 1001 if (lf_subpackets->logout && 1002 (lf_subpackets->logout->rbox_int & 0x20000400ul)) 1003 status = marvel_process_io_error(lf_subpackets, print); 1004 1005 /* 1006 * Probing behind PCI-X bridges can cause machine checks on 1007 * Marvel when the probe is handled by the bridge as a split 1008 * completion transaction. The symptom is an ERROR_RESPONSE 1009 * to a CONFIG address. Since these errors will happen in 1010 * normal operation, dismiss them. 1011 * 1012 * Dismiss if: 1013 * C_STAT = 0x14 (Error Reponse) 1014 * C_STS<3> = 0 (C_ADDR valid) 1015 * C_ADDR<42> = 1 (I/O) 1016 * C_ADDR<31:22> = 111110xxb (PCI Config space) 1017 */ 1018 if (lf_subpackets->ev7 && 1019 (lf_subpackets->ev7->c_stat == 0x14) && 1020 !(lf_subpackets->ev7->c_sts & 0x8) && 1021 ((lf_subpackets->ev7->c_addr & 0x400ff000000ul) 1022 == 0x400fe000000ul)) 1023 status = MCHK_DISPOSITION_DISMISS; 1024 1025 return status; 1026} 1027 1028void 1029marvel_machine_check(u64 vector, u64 la_ptr) 1030{ 1031 struct el_subpacket *el_ptr = (struct el_subpacket *)la_ptr; 1032 int (*process_frame)(struct ev7_lf_subpackets *, int) = NULL; 1033 struct ev7_lf_subpackets subpacket_collection = { NULL, }; 1034 struct ev7_pal_io_subpacket scratch_io_packet = { 0, }; 1035 struct ev7_lf_subpackets *lf_subpackets = NULL; 1036 int disposition = MCHK_DISPOSITION_UNKNOWN_ERROR; 1037 char *saved_err_prefix = err_print_prefix; 1038 char *error_type = NULL; 1039 1040 /* 1041 * Sync the processor 1042 */ 1043 mb(); 1044 draina(); 1045 1046 switch(vector) { 1047 case SCB_Q_SYSEVENT: 1048 process_frame = marvel_process_680_frame; 1049 error_type = "System Event"; 1050 break; 1051 1052 case SCB_Q_SYSMCHK: 1053 process_frame = marvel_process_logout_frame; 1054 error_type = "System Uncorrectable Error"; 1055 break; 1056 1057 case SCB_Q_SYSERR: 1058 process_frame = marvel_process_logout_frame; 1059 error_type = "System Correctable Error"; 1060 break; 1061 1062 default: 1063 /* Don't know it - pass it up. */ 1064 ev7_machine_check(vector, la_ptr); 1065 return; 1066 } 1067 1068 /* 1069 * A system event or error has occured, handle it here. 1070 * 1071 * Any errors in the logout frame have already been cleared by the 1072 * PALcode, so just parse it. 1073 */ 1074 err_print_prefix = KERN_CRIT; 1075 1076 /* 1077 * Parse the logout frame without printing first. If the only error(s) 1078 * found are classified as "dismissable", then just dismiss them and 1079 * don't print any message 1080 */ 1081 lf_subpackets = 1082 ev7_collect_logout_frame_subpackets(el_ptr, 1083 &subpacket_collection); 1084 if (process_frame && lf_subpackets && lf_subpackets->logout) { 1085 /* 1086 * We might not have the correct (or any) I/O subpacket. 1087 * [ See marvel_process_io_error() for explanation. ] 1088 * If we don't have one, point the io subpacket in 1089 * lf_subpackets at scratch_io_packet so that 1090 * marvel_find_io7_with_error() will have someplace to 1091 * store the info. 1092 */ 1093 if (!lf_subpackets->io) 1094 lf_subpackets->io = &scratch_io_packet; 1095 1096 /* 1097 * Default io_pid to the processor reporting the error 1098 * [this will get changed in marvel_find_io7_with_error() 1099 * if a different one is needed] 1100 */ 1101 lf_subpackets->io_pid = lf_subpackets->logout->whami; 1102 1103 /* 1104 * Evaluate the frames. 1105 */ 1106 disposition = process_frame(lf_subpackets, 0); 1107 } 1108 switch(disposition) { 1109 case MCHK_DISPOSITION_DISMISS: 1110 /* Nothing to do. */ 1111 break; 1112 1113 case MCHK_DISPOSITION_REPORT: 1114 /* Recognized error, report it. */ 1115 printk("%s*%s (Vector 0x%x) reported on CPU %d\n", 1116 err_print_prefix, error_type, 1117 (unsigned int)vector, (int)smp_processor_id()); 1118 el_print_timestamp(&lf_subpackets->logout->timestamp); 1119 process_frame(lf_subpackets, 1); 1120 break; 1121 1122 default: 1123 /* Unknown - dump the annotated subpackets. */ 1124 printk("%s*%s (Vector 0x%x) reported on CPU %d\n", 1125 err_print_prefix, error_type, 1126 (unsigned int)vector, (int)smp_processor_id()); 1127 el_process_subpacket(el_ptr); 1128 break; 1129 1130 } 1131 1132 err_print_prefix = saved_err_prefix; 1133 1134 /* Release the logout frame. */ 1135 wrmces(0x7); 1136 mb(); 1137} 1138 1139void 1140marvel_register_error_handlers(void) 1141{ 1142 ev7_register_error_handlers(); 1143} 1144