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