include/asm-ia64/sal.h

   1 #ifndef _ASM_IA64_SAL_H
   2 #define _ASM_IA64_SAL_H
   3
   4 /*
   5  * System Abstraction Layer definitions.
   6  *
   7  * This is based on version 2.5 of the manual "IA-64 System
   8  * Abstraction Layer".
   9  *
  10  * Copyright (C) 2001 Intel
  11  * Copyright (C) 2002 Jenna Hall <jenna.s.hall@intel.com>
  12  * Copyright (C) 2001 Fred Lewis <frederick.v.lewis@intel.com>
  13  * Copyright (C) 1998, 1999, 2001, 2003 Hewlett-Packard Co
  14  *      David Mosberger-Tang <davidm@hpl.hp.com>
  15  * Copyright (C) 1999 Srinivasa Prasad Thirumalachar <sprasad@sprasad.engr.sgi.com>
  16  *
  17  * 02/01/04 J. Hall Updated Error Record Structures to conform to July 2001
  18  *                  revision of the SAL spec.
  19  * 01/01/03 fvlewis Updated Error Record Structures to conform with Nov. 2000
  20  *                  revision of the SAL spec.
  21  * 99/09/29 davidm      Updated for SAL 2.6.
  22  * 00/03/29 cfleck      Updated SAL Error Logging info for processor (SAL 2.6)
  23  *                      (plus examples of platform error info structures from smariset @ Intel)
  24  */
  25
  26 #define IA64_SAL_PLATFORM_FEATURE_BUS_LOCK_BIT          0
  27 #define IA64_SAL_PLATFORM_FEATURE_IRQ_REDIR_HINT_BIT    1
  28 #define IA64_SAL_PLATFORM_FEATURE_IPI_REDIR_HINT_BIT    2
  29 #define IA64_SAL_PLATFORM_FEATURE_ITC_DRIFT_BIT         3
  30
  31 #define IA64_SAL_PLATFORM_FEATURE_BUS_LOCK        (1<<IA64_SAL_PLATFORM_FEATURE_BUS_LOCK_BIT)
  32 #define IA64_SAL_PLATFORM_FEATURE_IRQ_REDIR_HINT (1<<IA64_SAL_PLATFORM_FEATURE_IRQ_REDIR_HINT_BIT)
  33 #define IA64_SAL_PLATFORM_FEATURE_IPI_REDIR_HINT (1<<IA64_SAL_PLATFORM_FEATURE_IPI_REDIR_HINT_BIT)
  34 #define IA64_SAL_PLATFORM_FEATURE_ITC_DRIFT       (1<<IA64_SAL_PLATFORM_FEATURE_ITC_DRIFT_BIT)
  35
  36 #ifndef __ASSEMBLY__
  37
  38 #include <linux/bcd.h>
  39 #include <linux/spinlock.h>
  40 #include <linux/efi.h>
  41
  42 #include <asm/pal.h>
  43 #include <asm/system.h>
  44 #include <asm/fpu.h>
  45
  46 extern spinlock_t sal_lock;
  47
  48 /* SAL spec _requires_ eight args for each call. */
  49 #define __IA64_FW_CALL(entry,result,a0,a1,a2,a3,a4,a5,a6,a7)    \
  50         result = (*entry)(a0,a1,a2,a3,a4,a5,a6,a7)
  51
  52 # define IA64_FW_CALL(entry,result,args...) do {                \
  53         unsigned long __ia64_sc_flags;                          \
  54         struct ia64_fpreg __ia64_sc_fr[6];                      \
  55         ia64_save_scratch_fpregs(__ia64_sc_fr);                 \
  56         spin_lock_irqsave(&sal_lock, __ia64_sc_flags);          \
  57         __IA64_FW_CALL(entry, result, args);                    \
  58         spin_unlock_irqrestore(&sal_lock, __ia64_sc_flags);     \
  59         ia64_load_scratch_fpregs(__ia64_sc_fr);                 \
  60 } while (0)
  61
  62 # define SAL_CALL(result,args...)                       \
  63         IA64_FW_CALL(ia64_sal, result, args);
  64
  65 # define SAL_CALL_NOLOCK(result,args...) do {           \
  66         unsigned long __ia64_scn_flags;                 \
  67         struct ia64_fpreg __ia64_scn_fr[6];             \
  68         ia64_save_scratch_fpregs(__ia64_scn_fr);        \
  69         local_irq_save(__ia64_scn_flags);               \
  70         __IA64_FW_CALL(ia64_sal, result, args);         \
  71         local_irq_restore(__ia64_scn_flags);            \
  72         ia64_load_scratch_fpregs(__ia64_scn_fr);        \
  73 } while (0)
  74
  75 # define SAL_CALL_REENTRANT(result,args...) do {        \
  76         struct ia64_fpreg __ia64_scs_fr[6];             \
  77         ia64_save_scratch_fpregs(__ia64_scs_fr);        \
  78         preempt_disable();                              \
  79         __IA64_FW_CALL(ia64_sal, result, args);         \
  80         preempt_enable();                               \
  81         ia64_load_scratch_fpregs(__ia64_scs_fr);        \
  82 } while (0)
  83
  84 #define SAL_SET_VECTORS                 0x01000000
  85 #define SAL_GET_STATE_INFO              0x01000001
  86 #define SAL_GET_STATE_INFO_SIZE         0x01000002
  87 #define SAL_CLEAR_STATE_INFO            0x01000003
  88 #define SAL_MC_RENDEZ                   0x01000004
  89 #define SAL_MC_SET_PARAMS               0x01000005
  90 #define SAL_REGISTER_PHYSICAL_ADDR      0x01000006
  91
  92 #define SAL_CACHE_FLUSH                 0x01000008
  93 #define SAL_CACHE_INIT                  0x01000009
  94 #define SAL_PCI_CONFIG_READ             0x01000010
  95 #define SAL_PCI_CONFIG_WRITE            0x01000011
  96 #define SAL_FREQ_BASE                   0x01000012
  97 #define SAL_PHYSICAL_ID_INFO            0x01000013
  98
  99 #define SAL_UPDATE_PAL                  0x01000020
 100
 101 struct ia64_sal_retval {
 102         /*
 103          * A zero status value indicates call completed without error.
 104          * A negative status value indicates reason of call failure.
 105          * A positive status value indicates success but an
 106          * informational value should be printed (e.g., "reboot for
 107          * change to take effect").
 108          */
 109         s64 status;
 110         u64 v0;
 111         u64 v1;
 112         u64 v2;
 113 };
 114
 115 typedef struct ia64_sal_retval (*ia64_sal_handler) (u64, ...);
 116
 117 enum {
 118         SAL_FREQ_BASE_PLATFORM = 0,
 119         SAL_FREQ_BASE_INTERVAL_TIMER = 1,
 120         SAL_FREQ_BASE_REALTIME_CLOCK = 2
 121 };
 122
 123 /*
 124  * The SAL system table is followed by a variable number of variable
 125  * length descriptors.  The structure of these descriptors follows
 126  * below.
 127  * The defininition follows SAL specs from July 2000
 128  */
 129 struct ia64_sal_systab {
 130         u8 signature[4];        /* should be "SST_" */
 131         u32 size;               /* size of this table in bytes */
 132         u8 sal_rev_minor;
 133         u8 sal_rev_major;
 134         u16 entry_count;        /* # of entries in variable portion */
 135         u8 checksum;
 136         u8 reserved1[7];
 137         u8 sal_a_rev_minor;
 138         u8 sal_a_rev_major;
 139         u8 sal_b_rev_minor;
 140         u8 sal_b_rev_major;
 141         /* oem_id & product_id: terminating NUL is missing if string is exactly 32 bytes long. */
 142         u8 oem_id[32];
 143         u8 product_id[32];      /* ASCII product id  */
 144         u8 reserved2[8];
 145 };
 146
 147 enum sal_systab_entry_type {
 148         SAL_DESC_ENTRY_POINT = 0,
 149         SAL_DESC_MEMORY = 1,
 150         SAL_DESC_PLATFORM_FEATURE = 2,
 151         SAL_DESC_TR = 3,
 152         SAL_DESC_PTC = 4,
 153         SAL_DESC_AP_WAKEUP = 5
 154 };
 155
 156 /*
 157  * Entry type:  Size:
 158  *      0       48
 159  *      1       32
 160  *      2       16
 161  *      3       32
 162  *      4       16
 163  *      5       16
 164  */
 165 #define SAL_DESC_SIZE(type)     "\060\040\020\040\020\020"[(unsigned) type]
 166
 167 typedef struct ia64_sal_desc_entry_point {
 168         u8 type;
 169         u8 reserved1[7];
 170         u64 pal_proc;
 171         u64 sal_proc;
 172         u64 gp;
 173         u8 reserved2[16];
 174 }ia64_sal_desc_entry_point_t;
 175
 176 typedef struct ia64_sal_desc_memory {
 177         u8 type;
 178         u8 used_by_sal; /* needs to be mapped for SAL? */
 179         u8 mem_attr;            /* current memory attribute setting */
 180         u8 access_rights;       /* access rights set up by SAL */
 181         u8 mem_attr_mask;       /* mask of supported memory attributes */
 182         u8 reserved1;
 183         u8 mem_type;            /* memory type */
 184         u8 mem_usage;           /* memory usage */
 185         u64 addr;               /* physical address of memory */
 186         u32 length;     /* length (multiple of 4KB pages) */
 187         u32 reserved2;
 188         u8 oem_reserved[8];
 189 } ia64_sal_desc_memory_t;
 190
 191 typedef struct ia64_sal_desc_platform_feature {
 192         u8 type;
 193         u8 feature_mask;
 194         u8 reserved1[14];
 195 } ia64_sal_desc_platform_feature_t;
 196
 197 typedef struct ia64_sal_desc_tr {
 198         u8 type;
 199         u8 tr_type;             /* 0 == instruction, 1 == data */
 200         u8 regnum;              /* translation register number */
 201         u8 reserved1[5];
 202         u64 addr;               /* virtual address of area covered */
 203         u64 page_size;          /* encoded page size */
 204         u8 reserved2[8];
 205 } ia64_sal_desc_tr_t;
 206
 207 typedef struct ia64_sal_desc_ptc {
 208         u8 type;
 209         u8 reserved1[3];
 210         u32 num_domains;        /* # of coherence domains */
 211         u64 domain_info;        /* physical address of domain info table */
 212 } ia64_sal_desc_ptc_t;
 213
 214 typedef struct ia64_sal_ptc_domain_info {
 215         u64 proc_count;         /* number of processors in domain */
 216         u64 proc_list;          /* physical address of LID array */
 217 } ia64_sal_ptc_domain_info_t;
 218
 219 typedef struct ia64_sal_ptc_domain_proc_entry {
 220         u64 id  : 8;            /* id of processor */
 221         u64 eid : 8;            /* eid of processor */
 222 } ia64_sal_ptc_domain_proc_entry_t;
 223
 224
 225 #define IA64_SAL_AP_EXTERNAL_INT 0
 226
 227 typedef struct ia64_sal_desc_ap_wakeup {
 228         u8 type;
 229         u8 mechanism;           /* 0 == external interrupt */
 230         u8 reserved1[6];
 231         u64 vector;             /* interrupt vector in range 0x10-0xff */
 232 } ia64_sal_desc_ap_wakeup_t ;
 233
 234 extern ia64_sal_handler ia64_sal;
 235 extern struct ia64_sal_desc_ptc *ia64_ptc_domain_info;
 236
 237 extern unsigned short sal_revision;     /* supported SAL spec revision */
 238 extern unsigned short sal_version;      /* SAL version; OEM dependent */
 239 #define SAL_VERSION_CODE(major, minor) ((BIN2BCD(major) << 8) | BIN2BCD(minor))
 240
 241 extern const char *ia64_sal_strerror (long status);
 242 extern void ia64_sal_init (struct ia64_sal_systab *sal_systab);
 243
 244 /* SAL information type encodings */
 245 enum {
 246         SAL_INFO_TYPE_MCA  = 0,         /* Machine check abort information */
 247         SAL_INFO_TYPE_INIT = 1,         /* Init information */
 248         SAL_INFO_TYPE_CMC  = 2,         /* Corrected machine check information */
 249         SAL_INFO_TYPE_CPE  = 3          /* Corrected platform error information */
 250 };
 251
 252 /* Encodings for machine check parameter types */
 253 enum {
 254         SAL_MC_PARAM_RENDEZ_INT    = 1, /* Rendezvous interrupt */
 255         SAL_MC_PARAM_RENDEZ_WAKEUP = 2, /* Wakeup */
 256         SAL_MC_PARAM_CPE_INT       = 3  /* Corrected Platform Error Int */
 257 };
 258
 259 /* Encodings for rendezvous mechanisms */
 260 enum {
 261         SAL_MC_PARAM_MECHANISM_INT = 1, /* Use interrupt */
 262         SAL_MC_PARAM_MECHANISM_MEM = 2  /* Use memory synchronization variable*/
 263 };
 264
 265 /* Encodings for vectors which can be registered by the OS with SAL */
 266 enum {
 267         SAL_VECTOR_OS_MCA         = 0,
 268         SAL_VECTOR_OS_INIT        = 1,
 269         SAL_VECTOR_OS_BOOT_RENDEZ = 2
 270 };
 271
 272 /* Encodings for mca_opt parameter sent to SAL_MC_SET_PARAMS */
 273 #define SAL_MC_PARAM_RZ_ALWAYS          0x1
 274 #define SAL_MC_PARAM_BINIT_ESCALATE     0x10
 275
 276 /*
 277  * Definition of the SAL Error Log from the SAL spec
 278  */
 279
 280 /* SAL Error Record Section GUID Definitions */
 281 #define SAL_PROC_DEV_ERR_SECT_GUID  \
 282     EFI_GUID(0xe429faf1, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
 283 #define SAL_PLAT_MEM_DEV_ERR_SECT_GUID  \
 284     EFI_GUID(0xe429faf2, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
 285 #define SAL_PLAT_SEL_DEV_ERR_SECT_GUID  \
 286     EFI_GUID(0xe429faf3, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
 287 #define SAL_PLAT_PCI_BUS_ERR_SECT_GUID  \
 288     EFI_GUID(0xe429faf4, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
 289 #define SAL_PLAT_SMBIOS_DEV_ERR_SECT_GUID  \
 290     EFI_GUID(0xe429faf5, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
 291 #define SAL_PLAT_PCI_COMP_ERR_SECT_GUID  \
 292     EFI_GUID(0xe429faf6, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
 293 #define SAL_PLAT_SPECIFIC_ERR_SECT_GUID  \
 294     EFI_GUID(0xe429faf7, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
 295 #define SAL_PLAT_HOST_CTLR_ERR_SECT_GUID  \
 296     EFI_GUID(0xe429faf8, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
 297 #define SAL_PLAT_BUS_ERR_SECT_GUID  \
 298     EFI_GUID(0xe429faf9, 0x3cb7, 0x11d4, 0xbc, 0xa7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81)
 299
 300 #define MAX_CACHE_ERRORS        6
 301 #define MAX_TLB_ERRORS          6
 302 #define MAX_BUS_ERRORS          1
 303
 304 /* Definition of version  according to SAL spec for logging purposes */
 305 typedef struct sal_log_revision {
 306         u8 minor;               /* BCD (0..99) */
 307         u8 major;               /* BCD (0..99) */
 308 } sal_log_revision_t;
 309
 310 /* Definition of timestamp according to SAL spec for logging purposes */
 311 typedef struct sal_log_timestamp {
 312         u8 slh_second;          /* Second (0..59) */
 313         u8 slh_minute;          /* Minute (0..59) */
 314         u8 slh_hour;            /* Hour (0..23) */
 315         u8 slh_reserved;
 316         u8 slh_day;             /* Day (1..31) */
 317         u8 slh_month;           /* Month (1..12) */
 318         u8 slh_year;            /* Year (00..99) */
 319         u8 slh_century;         /* Century (19, 20, 21, ...) */
 320 } sal_log_timestamp_t;
 321
 322 /* Definition of log record  header structures */
 323 typedef struct sal_log_record_header {
 324         u64 id;                         /* Unique monotonically increasing ID */
 325         sal_log_revision_t revision;    /* Major and Minor revision of header */
 326         u8 severity;                    /* Error Severity */
 327         u8 validation_bits;             /* 0: platform_guid, 1: !timestamp */
 328         u32 len;                        /* Length of this error log in bytes */
 329         sal_log_timestamp_t timestamp;  /* Timestamp */
 330         efi_guid_t platform_guid;       /* Unique OEM Platform ID */
 331 } sal_log_record_header_t;
 332
 333 #define sal_log_severity_recoverable    0
 334 #define sal_log_severity_fatal          1
 335 #define sal_log_severity_corrected      2
 336
 337 /* Definition of log section header structures */
 338 typedef struct sal_log_sec_header {
 339     efi_guid_t guid;                    /* Unique Section ID */
 340     sal_log_revision_t revision;        /* Major and Minor revision of Section */
 341     u16 reserved;
 342     u32 len;                            /* Section length */
 343 } sal_log_section_hdr_t;
 344
 345 typedef struct sal_log_mod_error_info {
 346         struct {
 347                 u64 check_info              : 1,
 348                     requestor_identifier    : 1,
 349                     responder_identifier    : 1,
 350                     target_identifier       : 1,
 351                     precise_ip              : 1,
 352                     reserved                : 59;
 353         } valid;
 354         u64 check_info;
 355         u64 requestor_identifier;
 356         u64 responder_identifier;
 357         u64 target_identifier;
 358         u64 precise_ip;
 359 } sal_log_mod_error_info_t;
 360
 361 typedef struct sal_processor_static_info {
 362         struct {
 363                 u64 minstate        : 1,
 364                     br              : 1,
 365                     cr              : 1,
 366                     ar              : 1,
 367                     rr              : 1,
 368                     fr              : 1,
 369                     reserved        : 58;
 370         } valid;
 371         pal_min_state_area_t min_state_area;
 372         u64 br[8];
 373         u64 cr[128];
 374         u64 ar[128];
 375         u64 rr[8];
 376         struct ia64_fpreg __attribute__ ((packed)) fr[128];
 377 } sal_processor_static_info_t;
 378
 379 struct sal_cpuid_info {
 380         u64 regs[5];
 381         u64 reserved;
 382 };
 383
 384 typedef struct sal_log_processor_info {
 385         sal_log_section_hdr_t header;
 386         struct {
 387                 u64 proc_error_map      : 1,
 388                     proc_state_param    : 1,
 389                     proc_cr_lid         : 1,
 390                     psi_static_struct   : 1,
 391                     num_cache_check     : 4,
 392                     num_tlb_check       : 4,
 393                     num_bus_check       : 4,
 394                     num_reg_file_check  : 4,
 395                     num_ms_check        : 4,
 396                     cpuid_info          : 1,
 397                     reserved1           : 39;
 398         } valid;
 399         u64 proc_error_map;
 400         u64 proc_state_parameter;
 401         u64 proc_cr_lid;
 402         /*
 403          * The rest of this structure consists of variable-length arrays, which can't be
 404          * expressed in C.
 405          */
 406         sal_log_mod_error_info_t info[0];
 407         /*
 408          * This is what the rest looked like if C supported variable-length arrays:
 409          *
 410          * sal_log_mod_error_info_t cache_check_info[.valid.num_cache_check];
 411          * sal_log_mod_error_info_t tlb_check_info[.valid.num_tlb_check];
 412          * sal_log_mod_error_info_t bus_check_info[.valid.num_bus_check];
 413          * sal_log_mod_error_info_t reg_file_check_info[.valid.num_reg_file_check];
 414          * sal_log_mod_error_info_t ms_check_info[.valid.num_ms_check];
 415          * struct sal_cpuid_info cpuid_info;
 416          * sal_processor_static_info_t processor_static_info;
 417          */
 418 } sal_log_processor_info_t;
 419
 420 /* Given a sal_log_processor_info_t pointer, return a pointer to the processor_static_info: */
 421 #define SAL_LPI_PSI_INFO(l)                                                                     \
 422 ({      sal_log_processor_info_t *_l = (l);                                                     \
 423         ((sal_processor_static_info_t *)                                                        \
 424          ((char *) _l->info + ((_l->valid.num_cache_check + _l->valid.num_tlb_check             \
 425                                 + _l->valid.num_bus_check + _l->valid.num_reg_file_check        \
 426                                 + _l->valid.num_ms_check) * sizeof(sal_log_mod_error_info_t)    \
 427                                + sizeof(struct sal_cpuid_info))));                              \
 428 })
 429
 430 /* platform error log structures */
 431
 432 typedef struct sal_log_mem_dev_err_info {
 433         sal_log_section_hdr_t header;
 434         struct {
 435                 u64 error_status    : 1,
 436                     physical_addr   : 1,
 437                     addr_mask       : 1,
 438                     node            : 1,
 439                     card            : 1,
 440                     module          : 1,
 441                     bank            : 1,
 442                     device          : 1,
 443                     row             : 1,
 444                     column          : 1,
 445                     bit_position    : 1,
 446                     requestor_id    : 1,
 447                     responder_id    : 1,
 448                     target_id       : 1,
 449                     bus_spec_data   : 1,
 450                     oem_id          : 1,
 451                     oem_data        : 1,
 452                     reserved        : 47;
 453         } valid;
 454         u64 error_status;
 455         u64 physical_addr;
 456         u64 addr_mask;
 457         u16 node;
 458         u16 card;
 459         u16 module;
 460         u16 bank;
 461         u16 device;
 462         u16 row;
 463         u16 column;
 464         u16 bit_position;
 465         u64 requestor_id;
 466         u64 responder_id;
 467         u64 target_id;
 468         u64 bus_spec_data;
 469         u8 oem_id[16];
 470         u8 oem_data[1];                 /* Variable length data */
 471 } sal_log_mem_dev_err_info_t;
 472
 473 typedef struct sal_log_sel_dev_err_info {
 474         sal_log_section_hdr_t header;
 475         struct {
 476                 u64 record_id       : 1,
 477                     record_type     : 1,
 478                     generator_id    : 1,
 479                     evm_rev         : 1,
 480                     sensor_type     : 1,
 481                     sensor_num      : 1,
 482                     event_dir       : 1,
 483                     event_data1     : 1,
 484                     event_data2     : 1,
 485                     event_data3     : 1,
 486                     reserved        : 54;
 487         } valid;
 488         u16 record_id;
 489         u8 record_type;
 490         u8 timestamp[4];
 491         u16 generator_id;
 492         u8 evm_rev;
 493         u8 sensor_type;
 494         u8 sensor_num;
 495         u8 event_dir;
 496         u8 event_data1;
 497         u8 event_data2;
 498         u8 event_data3;
 499 } sal_log_sel_dev_err_info_t;
 500
 501 typedef struct sal_log_pci_bus_err_info {
 502         sal_log_section_hdr_t header;
 503         struct {
 504                 u64 err_status      : 1,
 505                     err_type        : 1,
 506                     bus_id          : 1,
 507                     bus_address     : 1,
 508                     bus_data        : 1,
 509                     bus_cmd         : 1,
 510                     requestor_id    : 1,
 511                     responder_id    : 1,
 512                     target_id       : 1,
 513                     oem_data        : 1,
 514                     reserved        : 54;
 515         } valid;
 516         u64 err_status;
 517         u16 err_type;
 518         u16 bus_id;
 519         u32 reserved;
 520         u64 bus_address;
 521         u64 bus_data;
 522         u64 bus_cmd;
 523         u64 requestor_id;
 524         u64 responder_id;
 525         u64 target_id;
 526         u8 oem_data[1];                 /* Variable length data */
 527 } sal_log_pci_bus_err_info_t;
 528
 529 typedef struct sal_log_smbios_dev_err_info {
 530         sal_log_section_hdr_t header;
 531         struct {
 532                 u64 event_type      : 1,
 533                     length          : 1,
 534                     time_stamp      : 1,
 535                     data            : 1,
 536                     reserved1       : 60;
 537         } valid;
 538         u8 event_type;
 539         u8 length;
 540         u8 time_stamp[6];
 541         u8 data[1];                     /* data of variable length, length == slsmb_length */
 542 } sal_log_smbios_dev_err_info_t;
 543
 544 typedef struct sal_log_pci_comp_err_info {
 545         sal_log_section_hdr_t header;
 546         struct {
 547                 u64 err_status      : 1,
 548                     comp_info       : 1,
 549                     num_mem_regs    : 1,
 550                     num_io_regs     : 1,
 551                     reg_data_pairs  : 1,
 552                     oem_data        : 1,
 553                     reserved        : 58;
 554         } valid;
 555         u64 err_status;
 556         struct {
 557                 u16 vendor_id;
 558                 u16 device_id;
 559                 u8 class_code[3];
 560                 u8 func_num;
 561                 u8 dev_num;
 562                 u8 bus_num;
 563                 u8 seg_num;
 564                 u8 reserved[5];
 565         } comp_info;
 566         u32 num_mem_regs;
 567         u32 num_io_regs;
 568         u64 reg_data_pairs[1];
 569         /*
 570          * array of address/data register pairs is num_mem_regs + num_io_regs elements
 571          * long.  Each array element consists of a u64 address followed by a u64 data
 572          * value.  The oem_data array immediately follows the reg_data_pairs array
 573          */
 574         u8 oem_data[1];                 /* Variable length data */
 575 } sal_log_pci_comp_err_info_t;
 576
 577 typedef struct sal_log_plat_specific_err_info {
 578         sal_log_section_hdr_t header;
 579         struct {
 580                 u64 err_status      : 1,
 581                     guid            : 1,
 582                     oem_data        : 1,
 583                     reserved        : 61;
 584         } valid;
 585         u64 err_status;
 586         efi_guid_t guid;
 587         u8 oem_data[1];                 /* platform specific variable length data */
 588 } sal_log_plat_specific_err_info_t;
 589
 590 typedef struct sal_log_host_ctlr_err_info {
 591         sal_log_section_hdr_t header;
 592         struct {
 593                 u64 err_status      : 1,
 594                     requestor_id    : 1,
 595                     responder_id    : 1,
 596                     target_id       : 1,
 597                     bus_spec_data   : 1,
 598                     oem_data        : 1,
 599                     reserved        : 58;
 600         } valid;
 601         u64 err_status;
 602         u64 requestor_id;
 603         u64 responder_id;
 604         u64 target_id;
 605         u64 bus_spec_data;
 606         u8 oem_data[1];                 /* Variable length OEM data */
 607 } sal_log_host_ctlr_err_info_t;
 608
 609 typedef struct sal_log_plat_bus_err_info {
 610         sal_log_section_hdr_t header;
 611         struct {
 612                 u64 err_status      : 1,
 613                     requestor_id    : 1,
 614                     responder_id    : 1,
 615                     target_id       : 1,
 616                     bus_spec_data   : 1,
 617                     oem_data        : 1,
 618                     reserved        : 58;
 619         } valid;
 620         u64 err_status;
 621         u64 requestor_id;
 622         u64 responder_id;
 623         u64 target_id;
 624         u64 bus_spec_data;
 625         u8 oem_data[1];                 /* Variable length OEM data */
 626 } sal_log_plat_bus_err_info_t;
 627
 628 /* Overall platform error section structure */
 629 typedef union sal_log_platform_err_info {
 630         sal_log_mem_dev_err_info_t mem_dev_err;
 631         sal_log_sel_dev_err_info_t sel_dev_err;
 632         sal_log_pci_bus_err_info_t pci_bus_err;
 633         sal_log_smbios_dev_err_info_t smbios_dev_err;
 634         sal_log_pci_comp_err_info_t pci_comp_err;
 635         sal_log_plat_specific_err_info_t plat_specific_err;
 636         sal_log_host_ctlr_err_info_t host_ctlr_err;
 637         sal_log_plat_bus_err_info_t plat_bus_err;
 638 } sal_log_platform_err_info_t;
 639
 640 /* SAL log over-all, multi-section error record structure (processor+platform) */
 641 typedef struct err_rec {
 642         sal_log_record_header_t sal_elog_header;
 643         sal_log_processor_info_t proc_err;
 644         sal_log_platform_err_info_t plat_err;
 645         u8 oem_data_pad[1024];
 646 } ia64_err_rec_t;
 647
 648 /*
 649  * Now define a couple of inline functions for improved type checking
 650  * and convenience.
 651  */
 652 static inline long
 653 ia64_sal_freq_base (unsigned long which, unsigned long *ticks_per_second,
 654                     unsigned long *drift_info)
 655 {
 656         struct ia64_sal_retval isrv;
 657
 658         SAL_CALL(isrv, SAL_FREQ_BASE, which, 0, 0, 0, 0, 0, 0);
 659         *ticks_per_second = isrv.v0;
 660         *drift_info = isrv.v1;
 661         return isrv.status;
 662 }
 663
 664 extern s64 ia64_sal_cache_flush (u64 cache_type);
 665 extern void __init check_sal_cache_flush (void);
 666
 667 /* Initialize all the processor and platform level instruction and data caches */
 668 static inline s64
 669 ia64_sal_cache_init (void)
 670 {
 671         struct ia64_sal_retval isrv;
 672         SAL_CALL(isrv, SAL_CACHE_INIT, 0, 0, 0, 0, 0, 0, 0);
 673         return isrv.status;
 674 }
 675
 676 /*
 677  * Clear the processor and platform information logged by SAL with respect to the machine
 678  * state at the time of MCA's, INITs, CMCs, or CPEs.
 679  */
 680 static inline s64
 681 ia64_sal_clear_state_info (u64 sal_info_type)
 682 {
 683         struct ia64_sal_retval isrv;
 684         SAL_CALL_REENTRANT(isrv, SAL_CLEAR_STATE_INFO, sal_info_type, 0,
 685                       0, 0, 0, 0, 0);
 686         return isrv.status;
 687 }
 688
 689
 690 /* Get the processor and platform information logged by SAL with respect to the machine
 691  * state at the time of the MCAs, INITs, CMCs, or CPEs.
 692  */
 693 static inline u64
 694 ia64_sal_get_state_info (u64 sal_info_type, u64 *sal_info)
 695 {
 696         struct ia64_sal_retval isrv;
 697         SAL_CALL_REENTRANT(isrv, SAL_GET_STATE_INFO, sal_info_type, 0,
 698                       sal_info, 0, 0, 0, 0);
 699         if (isrv.status)
 700                 return 0;
 701
 702         return isrv.v0;
 703 }
 704
 705 /*
 706  * Get the maximum size of the information logged by SAL with respect to the machine state
 707  * at the time of MCAs, INITs, CMCs, or CPEs.
 708  */
 709 static inline u64
 710 ia64_sal_get_state_info_size (u64 sal_info_type)
 711 {
 712         struct ia64_sal_retval isrv;
 713         SAL_CALL_REENTRANT(isrv, SAL_GET_STATE_INFO_SIZE, sal_info_type, 0,
 714                       0, 0, 0, 0, 0);
 715         if (isrv.status)
 716                 return 0;
 717         return isrv.v0;
 718 }
 719
 720 /*
 721  * Causes the processor to go into a spin loop within SAL where SAL awaits a wakeup from
 722  * the monarch processor.  Must not lock, because it will not return on any cpu until the
 723  * monarch processor sends a wake up.
 724  */
 725 static inline s64
 726 ia64_sal_mc_rendez (void)
 727 {
 728         struct ia64_sal_retval isrv;
 729         SAL_CALL_NOLOCK(isrv, SAL_MC_RENDEZ, 0, 0, 0, 0, 0, 0, 0);
 730         return isrv.status;
 731 }
 732
 733 /*
 734  * Allow the OS to specify the interrupt number to be used by SAL to interrupt OS during
 735  * the machine check rendezvous sequence as well as the mechanism to wake up the
 736  * non-monarch processor at the end of machine check processing.
 737  * Returns the complete ia64_sal_retval because some calls return more than just a status
 738  * value.
 739  */
 740 static inline struct ia64_sal_retval
 741 ia64_sal_mc_set_params (u64 param_type, u64 i_or_m, u64 i_or_m_val, u64 timeout, u64 rz_always)
 742 {
 743         struct ia64_sal_retval isrv;
 744         SAL_CALL(isrv, SAL_MC_SET_PARAMS, param_type, i_or_m, i_or_m_val,
 745                  timeout, rz_always, 0, 0);
 746         return isrv;
 747 }
 748
 749 /* Read from PCI configuration space */
 750 static inline s64
 751 ia64_sal_pci_config_read (u64 pci_config_addr, int type, u64 size, u64 *value)
 752 {
 753         struct ia64_sal_retval isrv;
 754         SAL_CALL(isrv, SAL_PCI_CONFIG_READ, pci_config_addr, size, type, 0, 0, 0, 0);
 755         if (value)
 756                 *value = isrv.v0;
 757         return isrv.status;
 758 }
 759
 760 /* Write to PCI configuration space */
 761 static inline s64
 762 ia64_sal_pci_config_write (u64 pci_config_addr, int type, u64 size, u64 value)
 763 {
 764         struct ia64_sal_retval isrv;
 765         SAL_CALL(isrv, SAL_PCI_CONFIG_WRITE, pci_config_addr, size, value,
 766                  type, 0, 0, 0);
 767         return isrv.status;
 768 }
 769
 770 /*
 771  * Register physical addresses of locations needed by SAL when SAL procedures are invoked
 772  * in virtual mode.
 773  */
 774 static inline s64
 775 ia64_sal_register_physical_addr (u64 phys_entry, u64 phys_addr)
 776 {
 777         struct ia64_sal_retval isrv;
 778         SAL_CALL(isrv, SAL_REGISTER_PHYSICAL_ADDR, phys_entry, phys_addr,
 779                  0, 0, 0, 0, 0);
 780         return isrv.status;
 781 }
 782
 783 /*
 784  * Register software dependent code locations within SAL. These locations are handlers or
 785  * entry points where SAL will pass control for the specified event. These event handlers
 786  * are for the bott rendezvous, MCAs and INIT scenarios.
 787  */
 788 static inline s64
 789 ia64_sal_set_vectors (u64 vector_type,
 790                       u64 handler_addr1, u64 gp1, u64 handler_len1,
 791                       u64 handler_addr2, u64 gp2, u64 handler_len2)
 792 {
 793         struct ia64_sal_retval isrv;
 794         SAL_CALL(isrv, SAL_SET_VECTORS, vector_type,
 795                         handler_addr1, gp1, handler_len1,
 796                         handler_addr2, gp2, handler_len2);
 797
 798         return isrv.status;
 799 }
 800
 801 /* Update the contents of PAL block in the non-volatile storage device */
 802 static inline s64
 803 ia64_sal_update_pal (u64 param_buf, u64 scratch_buf, u64 scratch_buf_size,
 804                      u64 *error_code, u64 *scratch_buf_size_needed)
 805 {
 806         struct ia64_sal_retval isrv;
 807         SAL_CALL(isrv, SAL_UPDATE_PAL, param_buf, scratch_buf, scratch_buf_size,
 808                  0, 0, 0, 0);
 809         if (error_code)
 810                 *error_code = isrv.v0;
 811         if (scratch_buf_size_needed)
 812                 *scratch_buf_size_needed = isrv.v1;
 813         return isrv.status;
 814 }
 815
 816 /* Get physical processor die mapping in the platform. */
 817 static inline s64
 818 ia64_sal_physical_id_info(u16 *splid)
 819 {
 820         struct ia64_sal_retval isrv;
 821         SAL_CALL(isrv, SAL_PHYSICAL_ID_INFO, 0, 0, 0, 0, 0, 0, 0);
 822         if (splid)
 823                 *splid = isrv.v0;
 824         return isrv.status;
 825 }
 826
 827 extern unsigned long sal_platform_features;
 828
 829 extern int (*salinfo_platform_oemdata)(const u8 *, u8 **, u64 *);
 830
 831 struct sal_ret_values {
 832         long r8; long r9; long r10; long r11;
 833 };
 834
 835 #define IA64_SAL_OEMFUNC_MIN            0x02000000
 836 #define IA64_SAL_OEMFUNC_MAX            0x03ffffff
 837
 838 extern int ia64_sal_oemcall(struct ia64_sal_retval *, u64, u64, u64, u64, u64,
 839                             u64, u64, u64);
 840 extern int ia64_sal_oemcall_nolock(struct ia64_sal_retval *, u64, u64, u64,
 841                                    u64, u64, u64, u64, u64);
 842 extern int ia64_sal_oemcall_reentrant(struct ia64_sal_retval *, u64, u64, u64,
 843                                       u64, u64, u64, u64, u64);
 844 #ifdef CONFIG_HOTPLUG_CPU
 845 /*
 846  * System Abstraction Layer Specification
 847  * Section 3.2.5.1: OS_BOOT_RENDEZ to SAL return State.
 848  * Note: region regs are stored first in head.S _start. Hence they must
 849  * stay up front.
 850  */
 851 struct sal_to_os_boot {
 852         u64 rr[8];              /* Region Registers */
 853         u64 br[6];              /* br0:
 854                                  * return addr into SAL boot rendez routine */
 855         u64 gr1;                /* SAL:GP */
 856         u64 gr12;               /* SAL:SP */
 857         u64 gr13;               /* SAL: Task Pointer */
 858         u64 fpsr;
 859         u64 pfs;
 860         u64 rnat;
 861         u64 unat;
 862         u64 bspstore;
 863         u64 dcr;                /* Default Control Register */
 864         u64 iva;
 865         u64 pta;
 866         u64 itv;
 867         u64 pmv;
 868         u64 cmcv;
 869         u64 lrr[2];
 870         u64 gr[4];
 871         u64 pr;                 /* Predicate registers */
 872         u64 lc;                 /* Loop Count */
 873         struct ia64_fpreg fp[20];
 874 };
 875
 876 /*
 877  * Global array allocated for NR_CPUS at boot time
 878  */
 879 extern struct sal_to_os_boot sal_boot_rendez_state[NR_CPUS];
 880
 881 extern void ia64_jump_to_sal(struct sal_to_os_boot *);
 882 #endif
 883
 884 extern void ia64_sal_handler_init(void *entry_point, void *gpval);
 885
 886 #endif /* __ASSEMBLY__ */
 887
 888 #endif /* _ASM_IA64_SAL_H */