arch/ia64/include/asm/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         long status;
 110         unsigned long v0;
 111         unsigned long v1;
 112         unsigned long 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 #define PROCESSOR_ABSTRACTION_LAYER_OVERWRITE_GUID \
 300     EFI_GUID(0x6cb0a200, 0x893a, 0x11da, 0x96, 0xd2, 0x0, 0x10, 0x83, 0xff, \
 301                 0xca, 0x4d)
 302
 303 #define MAX_CACHE_ERRORS        6
 304 #define MAX_TLB_ERRORS          6
 305 #define MAX_BUS_ERRORS          1
 306
 307 /* Definition of version  according to SAL spec for logging purposes */
 308 typedef struct sal_log_revision {
 309         u8 minor;               /* BCD (0..99) */
 310         u8 major;               /* BCD (0..99) */
 311 } sal_log_revision_t;
 312
 313 /* Definition of timestamp according to SAL spec for logging purposes */
 314 typedef struct sal_log_timestamp {
 315         u8 slh_second;          /* Second (0..59) */
 316         u8 slh_minute;          /* Minute (0..59) */
 317         u8 slh_hour;            /* Hour (0..23) */
 318         u8 slh_reserved;
 319         u8 slh_day;             /* Day (1..31) */
 320         u8 slh_month;           /* Month (1..12) */
 321         u8 slh_year;            /* Year (00..99) */
 322         u8 slh_century;         /* Century (19, 20, 21, ...) */
 323 } sal_log_timestamp_t;
 324
 325 /* Definition of log record  header structures */
 326 typedef struct sal_log_record_header {
 327         u64 id;                         /* Unique monotonically increasing ID */
 328         sal_log_revision_t revision;    /* Major and Minor revision of header */
 329         u8 severity;                    /* Error Severity */
 330         u8 validation_bits;             /* 0: platform_guid, 1: !timestamp */
 331         u32 len;                        /* Length of this error log in bytes */
 332         sal_log_timestamp_t timestamp;  /* Timestamp */
 333         efi_guid_t platform_guid;       /* Unique OEM Platform ID */
 334 } sal_log_record_header_t;
 335
 336 #define sal_log_severity_recoverable    0
 337 #define sal_log_severity_fatal          1
 338 #define sal_log_severity_corrected      2
 339
 340 /*
 341  * Error Recovery Info (ERI) bit decode.  From SAL Spec section B.2.2 Table B-3
 342  * Error Section Error_Recovery_Info Field Definition.
 343  */
 344 #define ERI_NOT_VALID           0x0     /* Error Recovery Field is not valid */
 345 #define ERI_NOT_ACCESSIBLE      0x30    /* Resource not accessible */
 346 #define ERI_CONTAINMENT_WARN    0x22    /* Corrupt data propagated */
 347 #define ERI_UNCORRECTED_ERROR   0x20    /* Uncorrected error */
 348 #define ERI_COMPONENT_RESET     0x24    /* Component must be reset */
 349 #define ERI_CORR_ERROR_LOG      0x21    /* Corrected error, needs logging */
 350 #define ERI_CORR_ERROR_THRESH   0x29    /* Corrected error threshold exceeded */
 351
 352 /* Definition of log section header structures */
 353 typedef struct sal_log_sec_header {
 354     efi_guid_t guid;                    /* Unique Section ID */
 355     sal_log_revision_t revision;        /* Major and Minor revision of Section */
 356     u8 error_recovery_info;             /* Platform error recovery status */
 357     u8 reserved;
 358     u32 len;                            /* Section length */
 359 } sal_log_section_hdr_t;
 360
 361 typedef struct sal_log_mod_error_info {
 362         struct {
 363                 u64 check_info              : 1,
 364                     requestor_identifier    : 1,
 365                     responder_identifier    : 1,
 366                     target_identifier       : 1,
 367                     precise_ip              : 1,
 368                     reserved                : 59;
 369         } valid;
 370         u64 check_info;
 371         u64 requestor_identifier;
 372         u64 responder_identifier;
 373         u64 target_identifier;
 374         u64 precise_ip;
 375 } sal_log_mod_error_info_t;
 376
 377 typedef struct sal_processor_static_info {
 378         struct {
 379                 u64 minstate        : 1,
 380                     br              : 1,
 381                     cr              : 1,
 382                     ar              : 1,
 383                     rr              : 1,
 384                     fr              : 1,
 385                     reserved        : 58;
 386         } valid;
 387         pal_min_state_area_t min_state_area;
 388         u64 br[8];
 389         u64 cr[128];
 390         u64 ar[128];
 391         u64 rr[8];
 392         struct ia64_fpreg __attribute__ ((packed)) fr[128];
 393 } sal_processor_static_info_t;
 394
 395 struct sal_cpuid_info {
 396         u64 regs[5];
 397         u64 reserved;
 398 };
 399
 400 typedef struct sal_log_processor_info {
 401         sal_log_section_hdr_t header;
 402         struct {
 403                 u64 proc_error_map      : 1,
 404                     proc_state_param    : 1,
 405                     proc_cr_lid         : 1,
 406                     psi_static_struct   : 1,
 407                     num_cache_check     : 4,
 408                     num_tlb_check       : 4,
 409                     num_bus_check       : 4,
 410                     num_reg_file_check  : 4,
 411                     num_ms_check        : 4,
 412                     cpuid_info          : 1,
 413                     reserved1           : 39;
 414         } valid;
 415         u64 proc_error_map;
 416         u64 proc_state_parameter;
 417         u64 proc_cr_lid;
 418         /*
 419          * The rest of this structure consists of variable-length arrays, which can't be
 420          * expressed in C.
 421          */
 422         sal_log_mod_error_info_t info[0];
 423         /*
 424          * This is what the rest looked like if C supported variable-length arrays:
 425          *
 426          * sal_log_mod_error_info_t cache_check_info[.valid.num_cache_check];
 427          * sal_log_mod_error_info_t tlb_check_info[.valid.num_tlb_check];
 428          * sal_log_mod_error_info_t bus_check_info[.valid.num_bus_check];
 429          * sal_log_mod_error_info_t reg_file_check_info[.valid.num_reg_file_check];
 430          * sal_log_mod_error_info_t ms_check_info[.valid.num_ms_check];
 431          * struct sal_cpuid_info cpuid_info;
 432          * sal_processor_static_info_t processor_static_info;
 433          */
 434 } sal_log_processor_info_t;
 435
 436 /* Given a sal_log_processor_info_t pointer, return a pointer to the processor_static_info: */
 437 #define SAL_LPI_PSI_INFO(l)                                                                     \
 438 ({      sal_log_processor_info_t *_l = (l);                                                     \
 439         ((sal_processor_static_info_t *)                                                        \
 440          ((char *) _l->info + ((_l->valid.num_cache_check + _l->valid.num_tlb_check             \
 441                                 + _l->valid.num_bus_check + _l->valid.num_reg_file_check        \
 442                                 + _l->valid.num_ms_check) * sizeof(sal_log_mod_error_info_t)    \
 443                                + sizeof(struct sal_cpuid_info))));                              \
 444 })
 445
 446 /* platform error log structures */
 447
 448 typedef struct sal_log_mem_dev_err_info {
 449         sal_log_section_hdr_t header;
 450         struct {
 451                 u64 error_status    : 1,
 452                     physical_addr   : 1,
 453                     addr_mask       : 1,
 454                     node            : 1,
 455                     card            : 1,
 456                     module          : 1,
 457                     bank            : 1,
 458                     device          : 1,
 459                     row             : 1,
 460                     column          : 1,
 461                     bit_position    : 1,
 462                     requestor_id    : 1,
 463                     responder_id    : 1,
 464                     target_id       : 1,
 465                     bus_spec_data   : 1,
 466                     oem_id          : 1,
 467                     oem_data        : 1,
 468                     reserved        : 47;
 469         } valid;
 470         u64 error_status;
 471         u64 physical_addr;
 472         u64 addr_mask;
 473         u16 node;
 474         u16 card;
 475         u16 module;
 476         u16 bank;
 477         u16 device;
 478         u16 row;
 479         u16 column;
 480         u16 bit_position;
 481         u64 requestor_id;
 482         u64 responder_id;
 483         u64 target_id;
 484         u64 bus_spec_data;
 485         u8 oem_id[16];
 486         u8 oem_data[1];                 /* Variable length data */
 487 } sal_log_mem_dev_err_info_t;
 488
 489 typedef struct sal_log_sel_dev_err_info {
 490         sal_log_section_hdr_t header;
 491         struct {
 492                 u64 record_id       : 1,
 493                     record_type     : 1,
 494                     generator_id    : 1,
 495                     evm_rev         : 1,
 496                     sensor_type     : 1,
 497                     sensor_num      : 1,
 498                     event_dir       : 1,
 499                     event_data1     : 1,
 500                     event_data2     : 1,
 501                     event_data3     : 1,
 502                     reserved        : 54;
 503         } valid;
 504         u16 record_id;
 505         u8 record_type;
 506         u8 timestamp[4];
 507         u16 generator_id;
 508         u8 evm_rev;
 509         u8 sensor_type;
 510         u8 sensor_num;
 511         u8 event_dir;
 512         u8 event_data1;
 513         u8 event_data2;
 514         u8 event_data3;
 515 } sal_log_sel_dev_err_info_t;
 516
 517 typedef struct sal_log_pci_bus_err_info {
 518         sal_log_section_hdr_t header;
 519         struct {
 520                 u64 err_status      : 1,
 521                     err_type        : 1,
 522                     bus_id          : 1,
 523                     bus_address     : 1,
 524                     bus_data        : 1,
 525                     bus_cmd         : 1,
 526                     requestor_id    : 1,
 527                     responder_id    : 1,
 528                     target_id       : 1,
 529                     oem_data        : 1,
 530                     reserved        : 54;
 531         } valid;
 532         u64 err_status;
 533         u16 err_type;
 534         u16 bus_id;
 535         u32 reserved;
 536         u64 bus_address;
 537         u64 bus_data;
 538         u64 bus_cmd;
 539         u64 requestor_id;
 540         u64 responder_id;
 541         u64 target_id;
 542         u8 oem_data[1];                 /* Variable length data */
 543 } sal_log_pci_bus_err_info_t;
 544
 545 typedef struct sal_log_smbios_dev_err_info {
 546         sal_log_section_hdr_t header;
 547         struct {
 548                 u64 event_type      : 1,
 549                     length          : 1,
 550                     time_stamp      : 1,
 551                     data            : 1,
 552                     reserved1       : 60;
 553         } valid;
 554         u8 event_type;
 555         u8 length;
 556         u8 time_stamp[6];
 557         u8 data[1];                     /* data of variable length, length == slsmb_length */
 558 } sal_log_smbios_dev_err_info_t;
 559
 560 typedef struct sal_log_pci_comp_err_info {
 561         sal_log_section_hdr_t header;
 562         struct {
 563                 u64 err_status      : 1,
 564                     comp_info       : 1,
 565                     num_mem_regs    : 1,
 566                     num_io_regs     : 1,
 567                     reg_data_pairs  : 1,
 568                     oem_data        : 1,
 569                     reserved        : 58;
 570         } valid;
 571         u64 err_status;
 572         struct {
 573                 u16 vendor_id;
 574                 u16 device_id;
 575                 u8 class_code[3];
 576                 u8 func_num;
 577                 u8 dev_num;
 578                 u8 bus_num;
 579                 u8 seg_num;
 580                 u8 reserved[5];
 581         } comp_info;
 582         u32 num_mem_regs;
 583         u32 num_io_regs;
 584         u64 reg_data_pairs[1];
 585         /*
 586          * array of address/data register pairs is num_mem_regs + num_io_regs elements
 587          * long.  Each array element consists of a u64 address followed by a u64 data
 588          * value.  The oem_data array immediately follows the reg_data_pairs array
 589          */
 590         u8 oem_data[1];                 /* Variable length data */
 591 } sal_log_pci_comp_err_info_t;
 592
 593 typedef struct sal_log_plat_specific_err_info {
 594         sal_log_section_hdr_t header;
 595         struct {
 596                 u64 err_status      : 1,
 597                     guid            : 1,
 598                     oem_data        : 1,
 599                     reserved        : 61;
 600         } valid;
 601         u64 err_status;
 602         efi_guid_t guid;
 603         u8 oem_data[1];                 /* platform specific variable length data */
 604 } sal_log_plat_specific_err_info_t;
 605
 606 typedef struct sal_log_host_ctlr_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_host_ctlr_err_info_t;
 624
 625 typedef struct sal_log_plat_bus_err_info {
 626         sal_log_section_hdr_t header;
 627         struct {
 628                 u64 err_status      : 1,
 629                     requestor_id    : 1,
 630                     responder_id    : 1,
 631                     target_id       : 1,
 632                     bus_spec_data   : 1,
 633                     oem_data        : 1,
 634                     reserved        : 58;
 635         } valid;
 636         u64 err_status;
 637         u64 requestor_id;
 638         u64 responder_id;
 639         u64 target_id;
 640         u64 bus_spec_data;
 641         u8 oem_data[1];                 /* Variable length OEM data */
 642 } sal_log_plat_bus_err_info_t;
 643
 644 /* Overall platform error section structure */
 645 typedef union sal_log_platform_err_info {
 646         sal_log_mem_dev_err_info_t mem_dev_err;
 647         sal_log_sel_dev_err_info_t sel_dev_err;
 648         sal_log_pci_bus_err_info_t pci_bus_err;
 649         sal_log_smbios_dev_err_info_t smbios_dev_err;
 650         sal_log_pci_comp_err_info_t pci_comp_err;
 651         sal_log_plat_specific_err_info_t plat_specific_err;
 652         sal_log_host_ctlr_err_info_t host_ctlr_err;
 653         sal_log_plat_bus_err_info_t plat_bus_err;
 654 } sal_log_platform_err_info_t;
 655
 656 /* SAL log over-all, multi-section error record structure (processor+platform) */
 657 typedef struct err_rec {
 658         sal_log_record_header_t sal_elog_header;
 659         sal_log_processor_info_t proc_err;
 660         sal_log_platform_err_info_t plat_err;
 661         u8 oem_data_pad[1024];
 662 } ia64_err_rec_t;
 663
 664 /*
 665  * Now define a couple of inline functions for improved type checking
 666  * and convenience.
 667  */
 668
 669 extern s64 ia64_sal_cache_flush (u64 cache_type);
 670 extern void __init check_sal_cache_flush (void);
 671
 672 /* Initialize all the processor and platform level instruction and data caches */
 673 static inline s64
 674 ia64_sal_cache_init (void)
 675 {
 676         struct ia64_sal_retval isrv;
 677         SAL_CALL(isrv, SAL_CACHE_INIT, 0, 0, 0, 0, 0, 0, 0);
 678         return isrv.status;
 679 }
 680
 681 /*
 682  * Clear the processor and platform information logged by SAL with respect to the machine
 683  * state at the time of MCA's, INITs, CMCs, or CPEs.
 684  */
 685 static inline s64
 686 ia64_sal_clear_state_info (u64 sal_info_type)
 687 {
 688         struct ia64_sal_retval isrv;
 689         SAL_CALL_REENTRANT(isrv, SAL_CLEAR_STATE_INFO, sal_info_type, 0,
 690                       0, 0, 0, 0, 0);
 691         return isrv.status;
 692 }
 693
 694
 695 /* Get the processor and platform information logged by SAL with respect to the machine
 696  * state at the time of the MCAs, INITs, CMCs, or CPEs.
 697  */
 698 static inline u64
 699 ia64_sal_get_state_info (u64 sal_info_type, u64 *sal_info)
 700 {
 701         struct ia64_sal_retval isrv;
 702         SAL_CALL_REENTRANT(isrv, SAL_GET_STATE_INFO, sal_info_type, 0,
 703                       sal_info, 0, 0, 0, 0);
 704         if (isrv.status)
 705                 return 0;
 706
 707         return isrv.v0;
 708 }
 709
 710 /*
 711  * Get the maximum size of the information logged by SAL with respect to the machine state
 712  * at the time of MCAs, INITs, CMCs, or CPEs.
 713  */
 714 static inline u64
 715 ia64_sal_get_state_info_size (u64 sal_info_type)
 716 {
 717         struct ia64_sal_retval isrv;
 718         SAL_CALL_REENTRANT(isrv, SAL_GET_STATE_INFO_SIZE, sal_info_type, 0,
 719                       0, 0, 0, 0, 0);
 720         if (isrv.status)
 721                 return 0;
 722         return isrv.v0;
 723 }
 724
 725 /*
 726  * Causes the processor to go into a spin loop within SAL where SAL awaits a wakeup from
 727  * the monarch processor.  Must not lock, because it will not return on any cpu until the
 728  * monarch processor sends a wake up.
 729  */
 730 static inline s64
 731 ia64_sal_mc_rendez (void)
 732 {
 733         struct ia64_sal_retval isrv;
 734         SAL_CALL_NOLOCK(isrv, SAL_MC_RENDEZ, 0, 0, 0, 0, 0, 0, 0);
 735         return isrv.status;
 736 }
 737
 738 /*
 739  * Allow the OS to specify the interrupt number to be used by SAL to interrupt OS during
 740  * the machine check rendezvous sequence as well as the mechanism to wake up the
 741  * non-monarch processor at the end of machine check processing.
 742  * Returns the complete ia64_sal_retval because some calls return more than just a status
 743  * value.
 744  */
 745 static inline struct ia64_sal_retval
 746 ia64_sal_mc_set_params (u64 param_type, u64 i_or_m, u64 i_or_m_val, u64 timeout, u64 rz_always)
 747 {
 748         struct ia64_sal_retval isrv;
 749         SAL_CALL(isrv, SAL_MC_SET_PARAMS, param_type, i_or_m, i_or_m_val,
 750                  timeout, rz_always, 0, 0);
 751         return isrv;
 752 }
 753
 754 /* Read from PCI configuration space */
 755 static inline s64
 756 ia64_sal_pci_config_read (u64 pci_config_addr, int type, u64 size, u64 *value)
 757 {
 758         struct ia64_sal_retval isrv;
 759         SAL_CALL(isrv, SAL_PCI_CONFIG_READ, pci_config_addr, size, type, 0, 0, 0, 0);
 760         if (value)
 761                 *value = isrv.v0;
 762         return isrv.status;
 763 }
 764
 765 /* Write to PCI configuration space */
 766 static inline s64
 767 ia64_sal_pci_config_write (u64 pci_config_addr, int type, u64 size, u64 value)
 768 {
 769         struct ia64_sal_retval isrv;
 770         SAL_CALL(isrv, SAL_PCI_CONFIG_WRITE, pci_config_addr, size, value,
 771                  type, 0, 0, 0);
 772         return isrv.status;
 773 }
 774
 775 /*
 776  * Register physical addresses of locations needed by SAL when SAL procedures are invoked
 777  * in virtual mode.
 778  */
 779 static inline s64
 780 ia64_sal_register_physical_addr (u64 phys_entry, u64 phys_addr)
 781 {
 782         struct ia64_sal_retval isrv;
 783         SAL_CALL(isrv, SAL_REGISTER_PHYSICAL_ADDR, phys_entry, phys_addr,
 784                  0, 0, 0, 0, 0);
 785         return isrv.status;
 786 }
 787
 788 /*
 789  * Register software dependent code locations within SAL. These locations are handlers or
 790  * entry points where SAL will pass control for the specified event. These event handlers
 791  * are for the bott rendezvous, MCAs and INIT scenarios.
 792  */
 793 static inline s64
 794 ia64_sal_set_vectors (u64 vector_type,
 795                       u64 handler_addr1, u64 gp1, u64 handler_len1,
 796                       u64 handler_addr2, u64 gp2, u64 handler_len2)
 797 {
 798         struct ia64_sal_retval isrv;
 799         SAL_CALL(isrv, SAL_SET_VECTORS, vector_type,
 800                         handler_addr1, gp1, handler_len1,
 801                         handler_addr2, gp2, handler_len2);
 802
 803         return isrv.status;
 804 }
 805
 806 /* Update the contents of PAL block in the non-volatile storage device */
 807 static inline s64
 808 ia64_sal_update_pal (u64 param_buf, u64 scratch_buf, u64 scratch_buf_size,
 809                      u64 *error_code, u64 *scratch_buf_size_needed)
 810 {
 811         struct ia64_sal_retval isrv;
 812         SAL_CALL(isrv, SAL_UPDATE_PAL, param_buf, scratch_buf, scratch_buf_size,
 813                  0, 0, 0, 0);
 814         if (error_code)
 815                 *error_code = isrv.v0;
 816         if (scratch_buf_size_needed)
 817                 *scratch_buf_size_needed = isrv.v1;
 818         return isrv.status;
 819 }
 820
 821 /* Get physical processor die mapping in the platform. */
 822 static inline s64
 823 ia64_sal_physical_id_info(u16 *splid)
 824 {
 825         struct ia64_sal_retval isrv;
 826
 827         if (sal_revision < SAL_VERSION_CODE(3,2))
 828                 return -1;
 829
 830         SAL_CALL(isrv, SAL_PHYSICAL_ID_INFO, 0, 0, 0, 0, 0, 0, 0);
 831         if (splid)
 832                 *splid = isrv.v0;
 833         return isrv.status;
 834 }
 835
 836 extern unsigned long sal_platform_features;
 837
 838 extern int (*salinfo_platform_oemdata)(const u8 *, u8 **, u64 *);
 839
 840 struct sal_ret_values {
 841         long r8; long r9; long r10; long r11;
 842 };
 843
 844 #define IA64_SAL_OEMFUNC_MIN            0x02000000
 845 #define IA64_SAL_OEMFUNC_MAX            0x03ffffff
 846
 847 extern int ia64_sal_oemcall(struct ia64_sal_retval *, u64, u64, u64, u64, u64,
 848                             u64, u64, u64);
 849 extern int ia64_sal_oemcall_nolock(struct ia64_sal_retval *, u64, u64, u64,
 850                                    u64, u64, u64, u64, u64);
 851 extern int ia64_sal_oemcall_reentrant(struct ia64_sal_retval *, u64, u64, u64,
 852                                       u64, u64, u64, u64, u64);
 853 extern long
 854 ia64_sal_freq_base (unsigned long which, unsigned long *ticks_per_second,
 855                     unsigned long *drift_info);
 856 #ifdef CONFIG_HOTPLUG_CPU
 857 /*
 858  * System Abstraction Layer Specification
 859  * Section 3.2.5.1: OS_BOOT_RENDEZ to SAL return State.
 860  * Note: region regs are stored first in head.S _start. Hence they must
 861  * stay up front.
 862  */
 863 struct sal_to_os_boot {
 864         u64 rr[8];              /* Region Registers */
 865         u64 br[6];              /* br0:
 866                                  * return addr into SAL boot rendez routine */
 867         u64 gr1;                /* SAL:GP */
 868         u64 gr12;               /* SAL:SP */
 869         u64 gr13;               /* SAL: Task Pointer */
 870         u64 fpsr;
 871         u64 pfs;
 872         u64 rnat;
 873         u64 unat;
 874         u64 bspstore;
 875         u64 dcr;                /* Default Control Register */
 876         u64 iva;
 877         u64 pta;
 878         u64 itv;
 879         u64 pmv;
 880         u64 cmcv;
 881         u64 lrr[2];
 882         u64 gr[4];
 883         u64 pr;                 /* Predicate registers */
 884         u64 lc;                 /* Loop Count */
 885         struct ia64_fpreg fp[20];
 886 };
 887
 888 /*
 889  * Global array allocated for NR_CPUS at boot time
 890  */
 891 extern struct sal_to_os_boot sal_boot_rendez_state[NR_CPUS];
 892
 893 extern void ia64_jump_to_sal(struct sal_to_os_boot *);
 894 #endif
 895
 896 extern void ia64_sal_handler_init(void *entry_point, void *gpval);
 897
 898 #define PALO_MAX_TLB_PURGES     0xFFFF
 899 #define PALO_SIG        "PALO"
 900
 901 struct palo_table {
 902         u8  signature[4];       /* Should be "PALO" */
 903         u32 length;
 904         u8  minor_revision;
 905         u8  major_revision;
 906         u8  checksum;
 907         u8  reserved1[5];
 908         u16 max_tlb_purges;
 909         u8  reserved2[6];
 910 };
 911
 912 #define NPTCG_FROM_PAL                  0
 913 #define NPTCG_FROM_PALO                 1
 914 #define NPTCG_FROM_KERNEL_PARAMETER     2
 915
 916 #endif /* __ASSEMBLY__ */
 917
 918 #endif /* _ASM_IA64_SAL_H */