include/asm-ia64/sn/sn_sal.h

   1 #ifndef _ASM_IA64_SN_SN_SAL_H
   2 #define _ASM_IA64_SN_SN_SAL_H
   3
   4 /*
   5  * System Abstraction Layer definitions for IA64
   6  *
   7  * This file is subject to the terms and conditions of the GNU General Public
   8  * License.  See the file "COPYING" in the main directory of this archive
   9  * for more details.
  10  *
  11  * Copyright (c) 2000-2005 Silicon Graphics, Inc.  All rights reserved.
  12  */
  13
  14
  15 #include <linux/config.h>
  16 #include <asm/sal.h>
  17 #include <asm/sn/sn_cpuid.h>
  18 #include <asm/sn/arch.h>
  19 #include <asm/sn/geo.h>
  20 #include <asm/sn/nodepda.h>
  21 #include <asm/sn/shub_mmr.h>
  22
  23 // SGI Specific Calls
  24 #define  SN_SAL_POD_MODE                           0x02000001
  25 #define  SN_SAL_SYSTEM_RESET                       0x02000002
  26 #define  SN_SAL_PROBE                              0x02000003
  27 #define  SN_SAL_GET_MASTER_NASID                   0x02000004
  28 #define  SN_SAL_GET_KLCONFIG_ADDR                  0x02000005
  29 #define  SN_SAL_LOG_CE                             0x02000006
  30 #define  SN_SAL_REGISTER_CE                        0x02000007
  31 #define  SN_SAL_GET_PARTITION_ADDR                 0x02000009
  32 #define  SN_SAL_XP_ADDR_REGION                     0x0200000f
  33 #define  SN_SAL_NO_FAULT_ZONE_VIRTUAL              0x02000010
  34 #define  SN_SAL_NO_FAULT_ZONE_PHYSICAL             0x02000011
  35 #define  SN_SAL_PRINT_ERROR                        0x02000012
  36 #define  SN_SAL_SET_ERROR_HANDLING_FEATURES        0x0200001a   // reentrant
  37 #define  SN_SAL_GET_FIT_COMPT                      0x0200001b   // reentrant
  38 #define  SN_SAL_GET_SAPIC_INFO                     0x0200001d
  39 #define  SN_SAL_GET_SN_INFO                        0x0200001e
  40 #define  SN_SAL_CONSOLE_PUTC                       0x02000021
  41 #define  SN_SAL_CONSOLE_GETC                       0x02000022
  42 #define  SN_SAL_CONSOLE_PUTS                       0x02000023
  43 #define  SN_SAL_CONSOLE_GETS                       0x02000024
  44 #define  SN_SAL_CONSOLE_GETS_TIMEOUT               0x02000025
  45 #define  SN_SAL_CONSOLE_POLL                       0x02000026
  46 #define  SN_SAL_CONSOLE_INTR                       0x02000027
  47 #define  SN_SAL_CONSOLE_PUTB                       0x02000028
  48 #define  SN_SAL_CONSOLE_XMIT_CHARS                 0x0200002a
  49 #define  SN_SAL_CONSOLE_READC                      0x0200002b
  50 #define  SN_SAL_SYSCTL_MODID_GET                   0x02000031
  51 #define  SN_SAL_SYSCTL_GET                         0x02000032
  52 #define  SN_SAL_SYSCTL_IOBRICK_MODULE_GET          0x02000033
  53 #define  SN_SAL_SYSCTL_IO_PORTSPEED_GET            0x02000035
  54 #define  SN_SAL_SYSCTL_SLAB_GET                    0x02000036
  55 #define  SN_SAL_BUS_CONFIG                         0x02000037
  56 #define  SN_SAL_SYS_SERIAL_GET                     0x02000038
  57 #define  SN_SAL_PARTITION_SERIAL_GET               0x02000039
  58 #define  SN_SAL_SYSCTL_PARTITION_GET               0x0200003a
  59 #define  SN_SAL_SYSTEM_POWER_DOWN                  0x0200003b
  60 #define  SN_SAL_GET_MASTER_BASEIO_NASID            0x0200003c
  61 #define  SN_SAL_COHERENCE                          0x0200003d
  62 #define  SN_SAL_MEMPROTECT                         0x0200003e
  63 #define  SN_SAL_SYSCTL_FRU_CAPTURE                 0x0200003f
  64
  65 #define  SN_SAL_SYSCTL_IOBRICK_PCI_OP              0x02000042   // reentrant
  66 #define  SN_SAL_IROUTER_OP                         0x02000043
  67 #define  SN_SAL_SYSCTL_EVENT                       0x02000044
  68 #define  SN_SAL_IOIF_INTERRUPT                     0x0200004a
  69 #define  SN_SAL_HWPERF_OP                          0x02000050   // lock
  70 #define  SN_SAL_IOIF_ERROR_INTERRUPT               0x02000051
  71
  72 #define  SN_SAL_IOIF_SLOT_ENABLE                   0x02000053
  73 #define  SN_SAL_IOIF_SLOT_DISABLE                  0x02000054
  74 #define  SN_SAL_IOIF_GET_HUBDEV_INFO               0x02000055
  75 #define  SN_SAL_IOIF_GET_PCIBUS_INFO               0x02000056
  76 #define  SN_SAL_IOIF_GET_PCIDEV_INFO               0x02000057
  77 #define  SN_SAL_IOIF_GET_WIDGET_DMAFLUSH_LIST      0x02000058
  78
  79 #define SN_SAL_HUB_ERROR_INTERRUPT                 0x02000060
  80 #define SN_SAL_BTE_RECOVER                         0x02000061
  81 #define SN_SAL_IOIF_GET_PCI_TOPOLOGY               0x02000062
  82
  83 /*
  84  * Service-specific constants
  85  */
  86
  87 /* Console interrupt manipulation */
  88         /* action codes */
  89 #define SAL_CONSOLE_INTR_OFF    0       /* turn the interrupt off */
  90 #define SAL_CONSOLE_INTR_ON     1       /* turn the interrupt on */
  91 #define SAL_CONSOLE_INTR_STATUS 2       /* retrieve the interrupt status */
  92         /* interrupt specification & status return codes */
  93 #define SAL_CONSOLE_INTR_XMIT   1       /* output interrupt */
  94 #define SAL_CONSOLE_INTR_RECV   2       /* input interrupt */
  95
  96 /* interrupt handling */
  97 #define SAL_INTR_ALLOC          1
  98 #define SAL_INTR_FREE           2
  99
 100 /*
 101  * IRouter (i.e. generalized system controller) operations
 102  */
 103 #define SAL_IROUTER_OPEN        0       /* open a subchannel */
 104 #define SAL_IROUTER_CLOSE       1       /* close a subchannel */
 105 #define SAL_IROUTER_SEND        2       /* send part of an IRouter packet */
 106 #define SAL_IROUTER_RECV        3       /* receive part of an IRouter packet */
 107 #define SAL_IROUTER_INTR_STATUS 4       /* check the interrupt status for
 108                                          * an open subchannel
 109                                          */
 110 #define SAL_IROUTER_INTR_ON     5       /* enable an interrupt */
 111 #define SAL_IROUTER_INTR_OFF    6       /* disable an interrupt */
 112 #define SAL_IROUTER_INIT        7       /* initialize IRouter driver */
 113
 114 /* IRouter interrupt mask bits */
 115 #define SAL_IROUTER_INTR_XMIT   SAL_CONSOLE_INTR_XMIT
 116 #define SAL_IROUTER_INTR_RECV   SAL_CONSOLE_INTR_RECV
 117
 118 /*
 119  * Error Handling Features
 120  */
 121 #define SAL_ERR_FEAT_MCA_SLV_TO_OS_INIT_SLV     0x1
 122 #define SAL_ERR_FEAT_LOG_SBES                   0x2
 123 #define SAL_ERR_FEAT_MFR_OVERRIDE               0x4
 124 #define SAL_ERR_FEAT_SBE_THRESHOLD              0xffff0000
 125
 126 /*
 127  * SAL Error Codes
 128  */
 129 #define SALRET_MORE_PASSES      1
 130 #define SALRET_OK               0
 131 #define SALRET_NOT_IMPLEMENTED  (-1)
 132 #define SALRET_INVALID_ARG      (-2)
 133 #define SALRET_ERROR            (-3)
 134
 135 #define SN_SAL_FAKE_PROM                           0x02009999
 136
 137 /**
 138   * sn_sal_revision - get the SGI SAL revision number
 139   *
 140   * The SGI PROM stores its version in the sal_[ab]_rev_(major|minor).
 141   * This routine simply extracts the major and minor values and
 142   * presents them in a u32 format.
 143   *
 144   * For example, version 4.05 would be represented at 0x0405.
 145   */
 146 static inline u32
 147 sn_sal_rev(void)
 148 {
 149         struct ia64_sal_systab *systab = efi.sal_systab;
 150
 151         return (u32)(systab->sal_b_rev_major << 8 | systab->sal_b_rev_minor);
 152 }
 153
 154 /*
 155  * Specify the minimum PROM revsion required for this kernel.
 156  * Note that they're stored in hex format...
 157  */
 158 #define SN_SAL_MIN_VERSION      0x0404
 159
 160 /*
 161  * Returns the master console nasid, if the call fails, return an illegal
 162  * value.
 163  */
 164 static inline u64
 165 ia64_sn_get_console_nasid(void)
 166 {
 167         struct ia64_sal_retval ret_stuff;
 168
 169         ret_stuff.status = 0;
 170         ret_stuff.v0 = 0;
 171         ret_stuff.v1 = 0;
 172         ret_stuff.v2 = 0;
 173         SAL_CALL(ret_stuff, SN_SAL_GET_MASTER_NASID, 0, 0, 0, 0, 0, 0, 0);
 174
 175         if (ret_stuff.status < 0)
 176                 return ret_stuff.status;
 177
 178         /* Master console nasid is in 'v0' */
 179         return ret_stuff.v0;
 180 }
 181
 182 /*
 183  * Returns the master baseio nasid, if the call fails, return an illegal
 184  * value.
 185  */
 186 static inline u64
 187 ia64_sn_get_master_baseio_nasid(void)
 188 {
 189         struct ia64_sal_retval ret_stuff;
 190
 191         ret_stuff.status = 0;
 192         ret_stuff.v0 = 0;
 193         ret_stuff.v1 = 0;
 194         ret_stuff.v2 = 0;
 195         SAL_CALL(ret_stuff, SN_SAL_GET_MASTER_BASEIO_NASID, 0, 0, 0, 0, 0, 0, 0);
 196
 197         if (ret_stuff.status < 0)
 198                 return ret_stuff.status;
 199
 200         /* Master baseio nasid is in 'v0' */
 201         return ret_stuff.v0;
 202 }
 203
 204 static inline char *
 205 ia64_sn_get_klconfig_addr(nasid_t nasid)
 206 {
 207         struct ia64_sal_retval ret_stuff;
 208         int cnodeid;
 209
 210         cnodeid = nasid_to_cnodeid(nasid);
 211         ret_stuff.status = 0;
 212         ret_stuff.v0 = 0;
 213         ret_stuff.v1 = 0;
 214         ret_stuff.v2 = 0;
 215         SAL_CALL(ret_stuff, SN_SAL_GET_KLCONFIG_ADDR, (u64)nasid, 0, 0, 0, 0, 0, 0);
 216
 217         /*
 218          * We should panic if a valid cnode nasid does not produce
 219          * a klconfig address.
 220          */
 221         if (ret_stuff.status != 0) {
 222                 panic("ia64_sn_get_klconfig_addr: Returned error %lx\n", ret_stuff.status);
 223         }
 224         return ret_stuff.v0 ? __va(ret_stuff.v0) : NULL;
 225 }
 226
 227 /*
 228  * Returns the next console character.
 229  */
 230 static inline u64
 231 ia64_sn_console_getc(int *ch)
 232 {
 233         struct ia64_sal_retval ret_stuff;
 234
 235         ret_stuff.status = 0;
 236         ret_stuff.v0 = 0;
 237         ret_stuff.v1 = 0;
 238         ret_stuff.v2 = 0;
 239         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_GETC, 0, 0, 0, 0, 0, 0, 0);
 240
 241         /* character is in 'v0' */
 242         *ch = (int)ret_stuff.v0;
 243
 244         return ret_stuff.status;
 245 }
 246
 247 /*
 248  * Read a character from the SAL console device, after a previous interrupt
 249  * or poll operation has given us to know that a character is available
 250  * to be read.
 251  */
 252 static inline u64
 253 ia64_sn_console_readc(void)
 254 {
 255         struct ia64_sal_retval ret_stuff;
 256
 257         ret_stuff.status = 0;
 258         ret_stuff.v0 = 0;
 259         ret_stuff.v1 = 0;
 260         ret_stuff.v2 = 0;
 261         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_READC, 0, 0, 0, 0, 0, 0, 0);
 262
 263         /* character is in 'v0' */
 264         return ret_stuff.v0;
 265 }
 266
 267 /*
 268  * Sends the given character to the console.
 269  */
 270 static inline u64
 271 ia64_sn_console_putc(char ch)
 272 {
 273         struct ia64_sal_retval ret_stuff;
 274
 275         ret_stuff.status = 0;
 276         ret_stuff.v0 = 0;
 277         ret_stuff.v1 = 0;
 278         ret_stuff.v2 = 0;
 279         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_PUTC, (uint64_t)ch, 0, 0, 0, 0, 0, 0);
 280
 281         return ret_stuff.status;
 282 }
 283
 284 /*
 285  * Sends the given buffer to the console.
 286  */
 287 static inline u64
 288 ia64_sn_console_putb(const char *buf, int len)
 289 {
 290         struct ia64_sal_retval ret_stuff;
 291
 292         ret_stuff.status = 0;
 293         ret_stuff.v0 = 0;
 294         ret_stuff.v1 = 0;
 295         ret_stuff.v2 = 0;
 296         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_PUTB, (uint64_t)buf, (uint64_t)len, 0, 0, 0, 0, 0);
 297
 298         if ( ret_stuff.status == 0 ) {
 299                 return ret_stuff.v0;
 300         }
 301         return (u64)0;
 302 }
 303
 304 /*
 305  * Print a platform error record
 306  */
 307 static inline u64
 308 ia64_sn_plat_specific_err_print(int (*hook)(const char*, ...), char *rec)
 309 {
 310         struct ia64_sal_retval ret_stuff;
 311
 312         ret_stuff.status = 0;
 313         ret_stuff.v0 = 0;
 314         ret_stuff.v1 = 0;
 315         ret_stuff.v2 = 0;
 316         SAL_CALL_REENTRANT(ret_stuff, SN_SAL_PRINT_ERROR, (uint64_t)hook, (uint64_t)rec, 0, 0, 0, 0, 0);
 317
 318         return ret_stuff.status;
 319 }
 320
 321 /*
 322  * Check for Platform errors
 323  */
 324 static inline u64
 325 ia64_sn_plat_cpei_handler(void)
 326 {
 327         struct ia64_sal_retval ret_stuff;
 328
 329         ret_stuff.status = 0;
 330         ret_stuff.v0 = 0;
 331         ret_stuff.v1 = 0;
 332         ret_stuff.v2 = 0;
 333         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_LOG_CE, 0, 0, 0, 0, 0, 0, 0);
 334
 335         return ret_stuff.status;
 336 }
 337
 338 /*
 339  * Set Error Handling Features
 340  */
 341 static inline u64
 342 ia64_sn_plat_set_error_handling_features(void)
 343 {
 344         struct ia64_sal_retval ret_stuff;
 345
 346         ret_stuff.status = 0;
 347         ret_stuff.v0 = 0;
 348         ret_stuff.v1 = 0;
 349         ret_stuff.v2 = 0;
 350         SAL_CALL_REENTRANT(ret_stuff, SN_SAL_SET_ERROR_HANDLING_FEATURES,
 351                 (SAL_ERR_FEAT_MCA_SLV_TO_OS_INIT_SLV | SAL_ERR_FEAT_LOG_SBES),
 352                 0, 0, 0, 0, 0, 0);
 353
 354         return ret_stuff.status;
 355 }
 356
 357 /*
 358  * Checks for console input.
 359  */
 360 static inline u64
 361 ia64_sn_console_check(int *result)
 362 {
 363         struct ia64_sal_retval ret_stuff;
 364
 365         ret_stuff.status = 0;
 366         ret_stuff.v0 = 0;
 367         ret_stuff.v1 = 0;
 368         ret_stuff.v2 = 0;
 369         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_POLL, 0, 0, 0, 0, 0, 0, 0);
 370
 371         /* result is in 'v0' */
 372         *result = (int)ret_stuff.v0;
 373
 374         return ret_stuff.status;
 375 }
 376
 377 /*
 378  * Checks console interrupt status
 379  */
 380 static inline u64
 381 ia64_sn_console_intr_status(void)
 382 {
 383         struct ia64_sal_retval ret_stuff;
 384
 385         ret_stuff.status = 0;
 386         ret_stuff.v0 = 0;
 387         ret_stuff.v1 = 0;
 388         ret_stuff.v2 = 0;
 389         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR,
 390                  0, SAL_CONSOLE_INTR_STATUS,
 391                  0, 0, 0, 0, 0);
 392
 393         if (ret_stuff.status == 0) {
 394             return ret_stuff.v0;
 395         }
 396
 397         return 0;
 398 }
 399
 400 /*
 401  * Enable an interrupt on the SAL console device.
 402  */
 403 static inline void
 404 ia64_sn_console_intr_enable(uint64_t intr)
 405 {
 406         struct ia64_sal_retval ret_stuff;
 407
 408         ret_stuff.status = 0;
 409         ret_stuff.v0 = 0;
 410         ret_stuff.v1 = 0;
 411         ret_stuff.v2 = 0;
 412         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR,
 413                  intr, SAL_CONSOLE_INTR_ON,
 414                  0, 0, 0, 0, 0);
 415 }
 416
 417 /*
 418  * Disable an interrupt on the SAL console device.
 419  */
 420 static inline void
 421 ia64_sn_console_intr_disable(uint64_t intr)
 422 {
 423         struct ia64_sal_retval ret_stuff;
 424
 425         ret_stuff.status = 0;
 426         ret_stuff.v0 = 0;
 427         ret_stuff.v1 = 0;
 428         ret_stuff.v2 = 0;
 429         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_INTR,
 430                  intr, SAL_CONSOLE_INTR_OFF,
 431                  0, 0, 0, 0, 0);
 432 }
 433
 434 /*
 435  * Sends a character buffer to the console asynchronously.
 436  */
 437 static inline u64
 438 ia64_sn_console_xmit_chars(char *buf, int len)
 439 {
 440         struct ia64_sal_retval ret_stuff;
 441
 442         ret_stuff.status = 0;
 443         ret_stuff.v0 = 0;
 444         ret_stuff.v1 = 0;
 445         ret_stuff.v2 = 0;
 446         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_CONSOLE_XMIT_CHARS,
 447                  (uint64_t)buf, (uint64_t)len,
 448                  0, 0, 0, 0, 0);
 449
 450         if (ret_stuff.status == 0) {
 451             return ret_stuff.v0;
 452         }
 453
 454         return 0;
 455 }
 456
 457 /*
 458  * Returns the iobrick module Id
 459  */
 460 static inline u64
 461 ia64_sn_sysctl_iobrick_module_get(nasid_t nasid, int *result)
 462 {
 463         struct ia64_sal_retval ret_stuff;
 464
 465         ret_stuff.status = 0;
 466         ret_stuff.v0 = 0;
 467         ret_stuff.v1 = 0;
 468         ret_stuff.v2 = 0;
 469         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_SYSCTL_IOBRICK_MODULE_GET, nasid, 0, 0, 0, 0, 0, 0);
 470
 471         /* result is in 'v0' */
 472         *result = (int)ret_stuff.v0;
 473
 474         return ret_stuff.status;
 475 }
 476
 477 /**
 478  * ia64_sn_pod_mode - call the SN_SAL_POD_MODE function
 479  *
 480  * SN_SAL_POD_MODE actually takes an argument, but it's always
 481  * 0 when we call it from the kernel, so we don't have to expose
 482  * it to the caller.
 483  */
 484 static inline u64
 485 ia64_sn_pod_mode(void)
 486 {
 487         struct ia64_sal_retval isrv;
 488         SAL_CALL_REENTRANT(isrv, SN_SAL_POD_MODE, 0, 0, 0, 0, 0, 0, 0);
 489         if (isrv.status)
 490                 return 0;
 491         return isrv.v0;
 492 }
 493
 494 /**
 495  * ia64_sn_probe_mem - read from memory safely
 496  * @addr: address to probe
 497  * @size: number bytes to read (1,2,4,8)
 498  * @data_ptr: address to store value read by probe (-1 returned if probe fails)
 499  *
 500  * Call into the SAL to do a memory read.  If the read generates a machine
 501  * check, this routine will recover gracefully and return -1 to the caller.
 502  * @addr is usually a kernel virtual address in uncached space (i.e. the
 503  * address starts with 0xc), but if called in physical mode, @addr should
 504  * be a physical address.
 505  *
 506  * Return values:
 507  *  0 - probe successful
 508  *  1 - probe failed (generated MCA)
 509  *  2 - Bad arg
 510  * <0 - PAL error
 511  */
 512 static inline u64
 513 ia64_sn_probe_mem(long addr, long size, void *data_ptr)
 514 {
 515         struct ia64_sal_retval isrv;
 516
 517         SAL_CALL(isrv, SN_SAL_PROBE, addr, size, 0, 0, 0, 0, 0);
 518
 519         if (data_ptr) {
 520                 switch (size) {
 521                 case 1:
 522                         *((u8*)data_ptr) = (u8)isrv.v0;
 523                         break;
 524                 case 2:
 525                         *((u16*)data_ptr) = (u16)isrv.v0;
 526                         break;
 527                 case 4:
 528                         *((u32*)data_ptr) = (u32)isrv.v0;
 529                         break;
 530                 case 8:
 531                         *((u64*)data_ptr) = (u64)isrv.v0;
 532                         break;
 533                 default:
 534                         isrv.status = 2;
 535                 }
 536         }
 537         return isrv.status;
 538 }
 539
 540 /*
 541  * Retrieve the system serial number as an ASCII string.
 542  */
 543 static inline u64
 544 ia64_sn_sys_serial_get(char *buf)
 545 {
 546         struct ia64_sal_retval ret_stuff;
 547         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_SYS_SERIAL_GET, buf, 0, 0, 0, 0, 0, 0);
 548         return ret_stuff.status;
 549 }
 550
 551 extern char sn_system_serial_number_string[];
 552 extern u64 sn_partition_serial_number;
 553
 554 static inline char *
 555 sn_system_serial_number(void) {
 556         if (sn_system_serial_number_string[0]) {
 557                 return(sn_system_serial_number_string);
 558         } else {
 559                 ia64_sn_sys_serial_get(sn_system_serial_number_string);
 560                 return(sn_system_serial_number_string);
 561         }
 562 }
 563
 564
 565 /*
 566  * Returns a unique id number for this system and partition (suitable for
 567  * use with license managers), based in part on the system serial number.
 568  */
 569 static inline u64
 570 ia64_sn_partition_serial_get(void)
 571 {
 572         struct ia64_sal_retval ret_stuff;
 573         ia64_sal_oemcall_reentrant(&ret_stuff, SN_SAL_PARTITION_SERIAL_GET, 0,
 574                                    0, 0, 0, 0, 0, 0);
 575         if (ret_stuff.status != 0)
 576             return 0;
 577         return ret_stuff.v0;
 578 }
 579
 580 static inline u64
 581 sn_partition_serial_number_val(void) {
 582         if (unlikely(sn_partition_serial_number == 0)) {
 583                 sn_partition_serial_number = ia64_sn_partition_serial_get();
 584         }
 585         return sn_partition_serial_number;
 586 }
 587
 588 /*
 589  * Returns the partition id of the nasid passed in as an argument,
 590  * or INVALID_PARTID if the partition id cannot be retrieved.
 591  */
 592 static inline partid_t
 593 ia64_sn_sysctl_partition_get(nasid_t nasid)
 594 {
 595         struct ia64_sal_retval ret_stuff;
 596         ia64_sal_oemcall_nolock(&ret_stuff, SN_SAL_SYSCTL_PARTITION_GET, nasid,
 597                                 0, 0, 0, 0, 0, 0);
 598         if (ret_stuff.status != 0)
 599             return INVALID_PARTID;
 600         return ((partid_t)ret_stuff.v0);
 601 }
 602
 603 /*
 604  * Returns the partition id of the current processor.
 605  */
 606
 607 extern partid_t sn_partid;
 608
 609 static inline partid_t
 610 sn_local_partid(void) {
 611         if (unlikely(sn_partid < 0)) {
 612                 sn_partid = ia64_sn_sysctl_partition_get(cpuid_to_nasid(smp_processor_id()));
 613         }
 614         return sn_partid;
 615 }
 616
 617 /*
 618  * Returns the physical address of the partition's reserved page through
 619  * an iterative number of calls.
 620  *
 621  * On first call, 'cookie' and 'len' should be set to 0, and 'addr'
 622  * set to the nasid of the partition whose reserved page's address is
 623  * being sought.
 624  * On subsequent calls, pass the values, that were passed back on the
 625  * previous call.
 626  *
 627  * While the return status equals SALRET_MORE_PASSES, keep calling
 628  * this function after first copying 'len' bytes starting at 'addr'
 629  * into 'buf'. Once the return status equals SALRET_OK, 'addr' will
 630  * be the physical address of the partition's reserved page. If the
 631  * return status equals neither of these, an error as occurred.
 632  */
 633 static inline s64
 634 sn_partition_reserved_page_pa(u64 buf, u64 *cookie, u64 *addr, u64 *len)
 635 {
 636         struct ia64_sal_retval rv;
 637         ia64_sal_oemcall_reentrant(&rv, SN_SAL_GET_PARTITION_ADDR, *cookie,
 638                                    *addr, buf, *len, 0, 0, 0);
 639         *cookie = rv.v0;
 640         *addr = rv.v1;
 641         *len = rv.v2;
 642         return rv.status;
 643 }
 644
 645 /*
 646  * Register or unregister a physical address range being referenced across
 647  * a partition boundary for which certain SAL errors should be scanned for,
 648  * cleaned up and ignored.  This is of value for kernel partitioning code only.
 649  * Values for the operation argument:
 650  *      1 = register this address range with SAL
 651  *      0 = unregister this address range with SAL
 652  *
 653  * SAL maintains a reference count on an address range in case it is registered
 654  * multiple times.
 655  *
 656  * On success, returns the reference count of the address range after the SAL
 657  * call has performed the current registration/unregistration.  Returns a
 658  * negative value if an error occurred.
 659  */
 660 static inline int
 661 sn_register_xp_addr_region(u64 paddr, u64 len, int operation)
 662 {
 663         struct ia64_sal_retval ret_stuff;
 664         ia64_sal_oemcall(&ret_stuff, SN_SAL_XP_ADDR_REGION, paddr, len,
 665                          (u64)operation, 0, 0, 0, 0);
 666         return ret_stuff.status;
 667 }
 668
 669 /*
 670  * Register or unregister an instruction range for which SAL errors should
 671  * be ignored.  If an error occurs while in the registered range, SAL jumps
 672  * to return_addr after ignoring the error.  Values for the operation argument:
 673  *      1 = register this instruction range with SAL
 674  *      0 = unregister this instruction range with SAL
 675  *
 676  * Returns 0 on success, or a negative value if an error occurred.
 677  */
 678 static inline int
 679 sn_register_nofault_code(u64 start_addr, u64 end_addr, u64 return_addr,
 680                          int virtual, int operation)
 681 {
 682         struct ia64_sal_retval ret_stuff;
 683         u64 call;
 684         if (virtual) {
 685                 call = SN_SAL_NO_FAULT_ZONE_VIRTUAL;
 686         } else {
 687                 call = SN_SAL_NO_FAULT_ZONE_PHYSICAL;
 688         }
 689         ia64_sal_oemcall(&ret_stuff, call, start_addr, end_addr, return_addr,
 690                          (u64)1, 0, 0, 0);
 691         return ret_stuff.status;
 692 }
 693
 694 /*
 695  * Change or query the coherence domain for this partition. Each cpu-based
 696  * nasid is represented by a bit in an array of 64-bit words:
 697  *      0 = not in this partition's coherency domain
 698  *      1 = in this partition's coherency domain
 699  *
 700  * It is not possible for the local system's nasids to be removed from
 701  * the coherency domain.  Purpose of the domain arguments:
 702  *      new_domain = set the coherence domain to the given nasids
 703  *      old_domain = return the current coherence domain
 704  *
 705  * Returns 0 on success, or a negative value if an error occurred.
 706  */
 707 static inline int
 708 sn_change_coherence(u64 *new_domain, u64 *old_domain)
 709 {
 710         struct ia64_sal_retval ret_stuff;
 711         ia64_sal_oemcall(&ret_stuff, SN_SAL_COHERENCE, (u64)new_domain,
 712                          (u64)old_domain, 0, 0, 0, 0, 0);
 713         return ret_stuff.status;
 714 }
 715
 716 /*
 717  * Change memory access protections for a physical address range.
 718  * nasid_array is not used on Altix, but may be in future architectures.
 719  * Available memory protection access classes are defined after the function.
 720  */
 721 static inline int
 722 sn_change_memprotect(u64 paddr, u64 len, u64 perms, u64 *nasid_array)
 723 {
 724         struct ia64_sal_retval ret_stuff;
 725         int cnodeid;
 726         unsigned long irq_flags;
 727
 728         cnodeid = nasid_to_cnodeid(get_node_number(paddr));
 729         // spin_lock(&NODEPDA(cnodeid)->bist_lock);
 730         local_irq_save(irq_flags);
 731         ia64_sal_oemcall_nolock(&ret_stuff, SN_SAL_MEMPROTECT, paddr, len,
 732                                 (u64)nasid_array, perms, 0, 0, 0);
 733         local_irq_restore(irq_flags);
 734         // spin_unlock(&NODEPDA(cnodeid)->bist_lock);
 735         return ret_stuff.status;
 736 }
 737 #define SN_MEMPROT_ACCESS_CLASS_0               0x14a080
 738 #define SN_MEMPROT_ACCESS_CLASS_1               0x2520c2
 739 #define SN_MEMPROT_ACCESS_CLASS_2               0x14a1ca
 740 #define SN_MEMPROT_ACCESS_CLASS_3               0x14a290
 741 #define SN_MEMPROT_ACCESS_CLASS_6               0x084080
 742 #define SN_MEMPROT_ACCESS_CLASS_7               0x021080
 743
 744 /*
 745  * Turns off system power.
 746  */
 747 static inline void
 748 ia64_sn_power_down(void)
 749 {
 750         struct ia64_sal_retval ret_stuff;
 751         SAL_CALL(ret_stuff, SN_SAL_SYSTEM_POWER_DOWN, 0, 0, 0, 0, 0, 0, 0);
 752         while(1);
 753         /* never returns */
 754 }
 755
 756 /**
 757  * ia64_sn_fru_capture - tell the system controller to capture hw state
 758  *
 759  * This routine will call the SAL which will tell the system controller(s)
 760  * to capture hw mmr information from each SHub in the system.
 761  */
 762 static inline u64
 763 ia64_sn_fru_capture(void)
 764 {
 765         struct ia64_sal_retval isrv;
 766         SAL_CALL(isrv, SN_SAL_SYSCTL_FRU_CAPTURE, 0, 0, 0, 0, 0, 0, 0);
 767         if (isrv.status)
 768                 return 0;
 769         return isrv.v0;
 770 }
 771
 772 /*
 773  * Performs an operation on a PCI bus or slot -- power up, power down
 774  * or reset.
 775  */
 776 static inline u64
 777 ia64_sn_sysctl_iobrick_pci_op(nasid_t n, u64 connection_type,
 778                               u64 bus, char slot,
 779                               u64 action)
 780 {
 781         struct ia64_sal_retval rv = {0, 0, 0, 0};
 782
 783         SAL_CALL_NOLOCK(rv, SN_SAL_SYSCTL_IOBRICK_PCI_OP, connection_type, n, action,
 784                  bus, (u64) slot, 0, 0);
 785         if (rv.status)
 786                 return rv.v0;
 787         return 0;
 788 }
 789
 790
 791 /*
 792  * Open a subchannel for sending arbitrary data to the system
 793  * controller network via the system controller device associated with
 794  * 'nasid'.  Return the subchannel number or a negative error code.
 795  */
 796 static inline int
 797 ia64_sn_irtr_open(nasid_t nasid)
 798 {
 799         struct ia64_sal_retval rv;
 800         SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_OPEN, nasid,
 801                            0, 0, 0, 0, 0);
 802         return (int) rv.v0;
 803 }
 804
 805 /*
 806  * Close system controller subchannel 'subch' previously opened on 'nasid'.
 807  */
 808 static inline int
 809 ia64_sn_irtr_close(nasid_t nasid, int subch)
 810 {
 811         struct ia64_sal_retval rv;
 812         SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_CLOSE,
 813                            (u64) nasid, (u64) subch, 0, 0, 0, 0);
 814         return (int) rv.status;
 815 }
 816
 817 /*
 818  * Read data from system controller associated with 'nasid' on
 819  * subchannel 'subch'.  The buffer to be filled is pointed to by
 820  * 'buf', and its capacity is in the integer pointed to by 'len'.  The
 821  * referent of 'len' is set to the number of bytes read by the SAL
 822  * call.  The return value is either SALRET_OK (for bytes read) or
 823  * SALRET_ERROR (for error or "no data available").
 824  */
 825 static inline int
 826 ia64_sn_irtr_recv(nasid_t nasid, int subch, char *buf, int *len)
 827 {
 828         struct ia64_sal_retval rv;
 829         SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_RECV,
 830                            (u64) nasid, (u64) subch, (u64) buf, (u64) len,
 831                            0, 0);
 832         return (int) rv.status;
 833 }
 834
 835 /*
 836  * Write data to the system controller network via the system
 837  * controller associated with 'nasid' on suchannel 'subch'.  The
 838  * buffer to be written out is pointed to by 'buf', and 'len' is the
 839  * number of bytes to be written.  The return value is either the
 840  * number of bytes written (which could be zero) or a negative error
 841  * code.
 842  */
 843 static inline int
 844 ia64_sn_irtr_send(nasid_t nasid, int subch, char *buf, int len)
 845 {
 846         struct ia64_sal_retval rv;
 847         SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_SEND,
 848                            (u64) nasid, (u64) subch, (u64) buf, (u64) len,
 849                            0, 0);
 850         return (int) rv.v0;
 851 }
 852
 853 /*
 854  * Check whether any interrupts are pending for the system controller
 855  * associated with 'nasid' and its subchannel 'subch'.  The return
 856  * value is a mask of pending interrupts (SAL_IROUTER_INTR_XMIT and/or
 857  * SAL_IROUTER_INTR_RECV).
 858  */
 859 static inline int
 860 ia64_sn_irtr_intr(nasid_t nasid, int subch)
 861 {
 862         struct ia64_sal_retval rv;
 863         SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_STATUS,
 864                            (u64) nasid, (u64) subch, 0, 0, 0, 0);
 865         return (int) rv.v0;
 866 }
 867
 868 /*
 869  * Enable the interrupt indicated by the intr parameter (either
 870  * SAL_IROUTER_INTR_XMIT or SAL_IROUTER_INTR_RECV).
 871  */
 872 static inline int
 873 ia64_sn_irtr_intr_enable(nasid_t nasid, int subch, u64 intr)
 874 {
 875         struct ia64_sal_retval rv;
 876         SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_ON,
 877                            (u64) nasid, (u64) subch, intr, 0, 0, 0);
 878         return (int) rv.v0;
 879 }
 880
 881 /*
 882  * Disable the interrupt indicated by the intr parameter (either
 883  * SAL_IROUTER_INTR_XMIT or SAL_IROUTER_INTR_RECV).
 884  */
 885 static inline int
 886 ia64_sn_irtr_intr_disable(nasid_t nasid, int subch, u64 intr)
 887 {
 888         struct ia64_sal_retval rv;
 889         SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INTR_OFF,
 890                            (u64) nasid, (u64) subch, intr, 0, 0, 0);
 891         return (int) rv.v0;
 892 }
 893
 894 /*
 895  * Set up a node as the point of contact for system controller
 896  * environmental event delivery.
 897  */
 898 static inline int
 899 ia64_sn_sysctl_event_init(nasid_t nasid)
 900 {
 901         struct ia64_sal_retval rv;
 902         SAL_CALL_REENTRANT(rv, SN_SAL_SYSCTL_EVENT, (u64) nasid,
 903                            0, 0, 0, 0, 0, 0);
 904         return (int) rv.v0;
 905 }
 906
 907 /**
 908  * ia64_sn_get_fit_compt - read a FIT entry from the PROM header
 909  * @nasid: NASID of node to read
 910  * @index: FIT entry index to be retrieved (0..n)
 911  * @fitentry: 16 byte buffer where FIT entry will be stored.
 912  * @banbuf: optional buffer for retrieving banner
 913  * @banlen: length of banner buffer
 914  *
 915  * Access to the physical PROM chips needs to be serialized since reads and
 916  * writes can't occur at the same time, so we need to call into the SAL when
 917  * we want to look at the FIT entries on the chips.
 918  *
 919  * Returns:
 920  *      %SALRET_OK if ok
 921  *      %SALRET_INVALID_ARG if index too big
 922  *      %SALRET_NOT_IMPLEMENTED if running on older PROM
 923  *      ??? if nasid invalid OR banner buffer not large enough
 924  */
 925 static inline int
 926 ia64_sn_get_fit_compt(u64 nasid, u64 index, void *fitentry, void *banbuf,
 927                       u64 banlen)
 928 {
 929         struct ia64_sal_retval rv;
 930         SAL_CALL_NOLOCK(rv, SN_SAL_GET_FIT_COMPT, nasid, index, fitentry,
 931                         banbuf, banlen, 0, 0);
 932         return (int) rv.status;
 933 }
 934
 935 /*
 936  * Initialize the SAL components of the system controller
 937  * communication driver; specifically pass in a sizable buffer that
 938  * can be used for allocation of subchannel queues as new subchannels
 939  * are opened.  "buf" points to the buffer, and "len" specifies its
 940  * length.
 941  */
 942 static inline int
 943 ia64_sn_irtr_init(nasid_t nasid, void *buf, int len)
 944 {
 945         struct ia64_sal_retval rv;
 946         SAL_CALL_REENTRANT(rv, SN_SAL_IROUTER_OP, SAL_IROUTER_INIT,
 947                            (u64) nasid, (u64) buf, (u64) len, 0, 0, 0);
 948         return (int) rv.status;
 949 }
 950
 951 /*
 952  * Returns the nasid, subnode & slice corresponding to a SAPIC ID
 953  *
 954  *  In:
 955  *      arg0 - SN_SAL_GET_SAPIC_INFO
 956  *      arg1 - sapicid (lid >> 16)
 957  *  Out:
 958  *      v0 - nasid
 959  *      v1 - subnode
 960  *      v2 - slice
 961  */
 962 static inline u64
 963 ia64_sn_get_sapic_info(int sapicid, int *nasid, int *subnode, int *slice)
 964 {
 965         struct ia64_sal_retval ret_stuff;
 966
 967         ret_stuff.status = 0;
 968         ret_stuff.v0 = 0;
 969         ret_stuff.v1 = 0;
 970         ret_stuff.v2 = 0;
 971         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_GET_SAPIC_INFO, sapicid, 0, 0, 0, 0, 0, 0);
 972
 973 /***** BEGIN HACK - temp til old proms no longer supported ********/
 974         if (ret_stuff.status == SALRET_NOT_IMPLEMENTED) {
 975                 if (nasid) *nasid = sapicid & 0xfff;
 976                 if (subnode) *subnode = (sapicid >> 13) & 1;
 977                 if (slice) *slice = (sapicid >> 12) & 3;
 978                 return 0;
 979         }
 980 /***** END HACK *******/
 981
 982         if (ret_stuff.status < 0)
 983                 return ret_stuff.status;
 984
 985         if (nasid) *nasid = (int) ret_stuff.v0;
 986         if (subnode) *subnode = (int) ret_stuff.v1;
 987         if (slice) *slice = (int) ret_stuff.v2;
 988         return 0;
 989 }
 990
 991 /*
 992  * Returns information about the HUB/SHUB.
 993  *  In:
 994  *      arg0 - SN_SAL_GET_SN_INFO
 995  *      arg1 - 0 (other values reserved for future use)
 996  *  Out:
 997  *      v0
 998  *              [7:0]   - shub type (0=shub1, 1=shub2)
 999  *              [15:8]  - Log2 max number of nodes in entire system (includes
1000  *                        C-bricks, I-bricks, etc)
1001  *              [23:16] - Log2 of nodes per sharing domain
1002  *              [31:24] - partition ID
1003  *              [39:32] - coherency_id
1004  *              [47:40] - regionsize
1005  *      v1
1006  *              [15:0]  - nasid mask (ex., 0x7ff for 11 bit nasid)
1007  *              [23:15] - bit position of low nasid bit
1008  */
1009 static inline u64
1010 ia64_sn_get_sn_info(int fc, u8 *shubtype, u16 *nasid_bitmask, u8 *nasid_shift,
1011                 u8 *systemsize, u8 *sharing_domain_size, u8 *partid, u8 *coher, u8 *reg)
1012 {
1013         struct ia64_sal_retval ret_stuff;
1014
1015         ret_stuff.status = 0;
1016         ret_stuff.v0 = 0;
1017         ret_stuff.v1 = 0;
1018         ret_stuff.v2 = 0;
1019         SAL_CALL_NOLOCK(ret_stuff, SN_SAL_GET_SN_INFO, fc, 0, 0, 0, 0, 0, 0);
1020
1021 /***** BEGIN HACK - temp til old proms no longer supported ********/
1022         if (ret_stuff.status == SALRET_NOT_IMPLEMENTED) {
1023                 int nasid = get_sapicid() & 0xfff;;
1024 #define SH_SHUB_ID_NODES_PER_BIT_MASK 0x001f000000000000UL
1025 #define SH_SHUB_ID_NODES_PER_BIT_SHFT 48
1026                 if (shubtype) *shubtype = 0;
1027                 if (nasid_bitmask) *nasid_bitmask = 0x7ff;
1028                 if (nasid_shift) *nasid_shift = 38;
1029                 if (systemsize) *systemsize = 11;
1030                 if (sharing_domain_size) *sharing_domain_size = 9;
1031                 if (partid) *partid = ia64_sn_sysctl_partition_get(nasid);
1032                 if (coher) *coher = nasid >> 9;
1033                 if (reg) *reg = (HUB_L((u64 *) LOCAL_MMR_ADDR(SH1_SHUB_ID)) & SH_SHUB_ID_NODES_PER_BIT_MASK) >>
1034                         SH_SHUB_ID_NODES_PER_BIT_SHFT;
1035                 return 0;
1036         }
1037 /***** END HACK *******/
1038
1039         if (ret_stuff.status < 0)
1040                 return ret_stuff.status;
1041
1042         if (shubtype) *shubtype = ret_stuff.v0 & 0xff;
1043         if (systemsize) *systemsize = (ret_stuff.v0 >> 8) & 0xff;
1044         if (sharing_domain_size) *sharing_domain_size = (ret_stuff.v0 >> 16) & 0xff;
1045         if (partid) *partid = (ret_stuff.v0 >> 24) & 0xff;
1046         if (coher) *coher = (ret_stuff.v0 >> 32) & 0xff;
1047         if (reg) *reg = (ret_stuff.v0 >> 40) & 0xff;
1048         if (nasid_bitmask) *nasid_bitmask = (ret_stuff.v1 & 0xffff);
1049         if (nasid_shift) *nasid_shift = (ret_stuff.v1 >> 16) & 0xff;
1050         return 0;
1051 }
1052
1053 /*
1054  * This is the access point to the Altix PROM hardware performance
1055  * and status monitoring interface. For info on using this, see
1056  * include/asm-ia64/sn/sn2/sn_hwperf.h
1057  */
1058 static inline int
1059 ia64_sn_hwperf_op(nasid_t nasid, u64 opcode, u64 a0, u64 a1, u64 a2,
1060                   u64 a3, u64 a4, int *v0)
1061 {
1062         struct ia64_sal_retval rv;
1063         SAL_CALL_NOLOCK(rv, SN_SAL_HWPERF_OP, (u64)nasid,
1064                 opcode, a0, a1, a2, a3, a4);
1065         if (v0)
1066                 *v0 = (int) rv.v0;
1067         return (int) rv.status;
1068 }
1069
1070 static inline int
1071 ia64_sn_ioif_get_pci_topology(u64 rack, u64 bay, u64 slot, u64 slab,
1072                               u64 buf, u64 len)
1073 {
1074         struct ia64_sal_retval rv;
1075         SAL_CALL_NOLOCK(rv, SN_SAL_IOIF_GET_PCI_TOPOLOGY,
1076                 rack, bay, slot, slab, buf, len, 0);
1077         return (int) rv.status;
1078 }
1079
1080 /*
1081  * BTE error recovery is implemented in SAL
1082  */
1083 static inline int
1084 ia64_sn_bte_recovery(nasid_t nasid)
1085 {
1086         struct ia64_sal_retval rv;
1087
1088         rv.status = 0;
1089         SAL_CALL_NOLOCK(rv, SN_SAL_BTE_RECOVER, 0, 0, 0, 0, 0, 0, 0);
1090         if (rv.status == SALRET_NOT_IMPLEMENTED)
1091                 return 0;
1092         return (int) rv.status;
1093 }
1094
1095 static inline int
1096 ia64_sn_is_fake_prom(void)
1097 {
1098         struct ia64_sal_retval rv;
1099         SAL_CALL_NOLOCK(rv, SN_SAL_FAKE_PROM, 0, 0, 0, 0, 0, 0, 0);
1100         return (rv.status == 0);
1101 }
1102
1103 #endif /* _ASM_IA64_SN_SN_SAL_H */