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         u16 severity;                   /* Error Severity */
 324         u32 len;                        /* Length of this error log in bytes */
 325         sal_log_timestamp_t timestamp;  /* Timestamp */
 326         efi_guid_t platform_guid;       /* Unique OEM Platform ID */
 327 } sal_log_record_header_t;
 328
 329 #define sal_log_severity_recoverable    0
 330 #define sal_log_severity_fatal          1
 331 #define sal_log_severity_corrected      2
 332
 333 /* Definition of log section header structures */
 334 typedef struct sal_log_sec_header {
 335     efi_guid_t guid;                    /* Unique Section ID */
 336     sal_log_revision_t revision;        /* Major and Minor revision of Section */
 337     u16 reserved;
 338     u32 len;                            /* Section length */
 339 } sal_log_section_hdr_t;
 340
 341 typedef struct sal_log_mod_error_info {
 342         struct {
 343                 u64 check_info              : 1,
 344                     requestor_identifier    : 1,
 345                     responder_identifier    : 1,
 346                     target_identifier       : 1,
 347                     precise_ip              : 1,
 348                     reserved                : 59;
 349         } valid;
 350         u64 check_info;
 351         u64 requestor_identifier;
 352         u64 responder_identifier;
 353         u64 target_identifier;
 354         u64 precise_ip;
 355 } sal_log_mod_error_info_t;
 356
 357 typedef struct sal_processor_static_info {
 358         struct {
 359                 u64 minstate        : 1,
 360                     br              : 1,
 361                     cr              : 1,
 362                     ar              : 1,
 363                     rr              : 1,
 364                     fr              : 1,
 365                     reserved        : 58;
 366         } valid;
 367         pal_min_state_area_t min_state_area;
 368         u64 br[8];
 369         u64 cr[128];
 370         u64 ar[128];
 371         u64 rr[8];
 372         struct ia64_fpreg __attribute__ ((packed)) fr[128];
 373 } sal_processor_static_info_t;
 374
 375 struct sal_cpuid_info {
 376         u64 regs[5];
 377         u64 reserved;
 378 };
 379
 380 typedef struct sal_log_processor_info {
 381         sal_log_section_hdr_t header;
 382         struct {
 383                 u64 proc_error_map      : 1,
 384                     proc_state_param    : 1,
 385                     proc_cr_lid         : 1,
 386                     psi_static_struct   : 1,
 387                     num_cache_check     : 4,
 388                     num_tlb_check       : 4,
 389                     num_bus_check       : 4,
 390                     num_reg_file_check  : 4,
 391                     num_ms_check        : 4,
 392                     cpuid_info          : 1,
 393                     reserved1           : 39;
 394         } valid;
 395         u64 proc_error_map;
 396         u64 proc_state_parameter;
 397         u64 proc_cr_lid;
 398         /*
 399          * The rest of this structure consists of variable-length arrays, which can't be
 400          * expressed in C.
 401          */
 402         sal_log_mod_error_info_t info[0];
 403         /*
 404          * This is what the rest looked like if C supported variable-length arrays:
 405          *
 406          * sal_log_mod_error_info_t cache_check_info[.valid.num_cache_check];
 407          * sal_log_mod_error_info_t tlb_check_info[.valid.num_tlb_check];
 408          * sal_log_mod_error_info_t bus_check_info[.valid.num_bus_check];
 409          * sal_log_mod_error_info_t reg_file_check_info[.valid.num_reg_file_check];
 410          * sal_log_mod_error_info_t ms_check_info[.valid.num_ms_check];
 411          * struct sal_cpuid_info cpuid_info;
 412          * sal_processor_static_info_t processor_static_info;
 413          */
 414 } sal_log_processor_info_t;
 415
 416 /* Given a sal_log_processor_info_t pointer, return a pointer to the processor_static_info: */
 417 #define SAL_LPI_PSI_INFO(l)                                                                     \
 418 ({      sal_log_processor_info_t *_l = (l);                                                     \
 419         ((sal_processor_static_info_t *)                                                        \
 420          ((char *) _l->info + ((_l->valid.num_cache_check + _l->valid.num_tlb_check             \
 421                                 + _l->valid.num_bus_check + _l->valid.num_reg_file_check        \
 422                                 + _l->valid.num_ms_check) * sizeof(sal_log_mod_error_info_t)    \
 423                                + sizeof(struct sal_cpuid_info))));                              \
 424 })
 425
 426 /* platform error log structures */
 427
 428 typedef struct sal_log_mem_dev_err_info {
 429         sal_log_section_hdr_t header;
 430         struct {
 431                 u64 error_status    : 1,
 432                     physical_addr   : 1,
 433                     addr_mask       : 1,
 434                     node            : 1,
 435                     card            : 1,
 436                     module          : 1,
 437                     bank            : 1,
 438                     device          : 1,
 439                     row             : 1,
 440                     column          : 1,
 441                     bit_position    : 1,
 442                     requestor_id    : 1,
 443                     responder_id    : 1,
 444                     target_id       : 1,
 445                     bus_spec_data   : 1,
 446                     oem_id          : 1,
 447                     oem_data        : 1,
 448                     reserved        : 47;
 449         } valid;
 450         u64 error_status;
 451         u64 physical_addr;
 452         u64 addr_mask;
 453         u16 node;
 454         u16 card;
 455         u16 module;
 456         u16 bank;
 457         u16 device;
 458         u16 row;
 459         u16 column;
 460         u16 bit_position;
 461         u64 requestor_id;
 462         u64 responder_id;
 463         u64 target_id;
 464         u64 bus_spec_data;
 465         u8 oem_id[16];
 466         u8 oem_data[1];                 /* Variable length data */
 467 } sal_log_mem_dev_err_info_t;
 468
 469 typedef struct sal_log_sel_dev_err_info {
 470         sal_log_section_hdr_t header;
 471         struct {
 472                 u64 record_id       : 1,
 473                     record_type     : 1,
 474                     generator_id    : 1,
 475                     evm_rev         : 1,
 476                     sensor_type     : 1,
 477                     sensor_num      : 1,
 478                     event_dir       : 1,
 479                     event_data1     : 1,
 480                     event_data2     : 1,
 481                     event_data3     : 1,
 482                     reserved        : 54;
 483         } valid;
 484         u16 record_id;
 485         u8 record_type;
 486         u8 timestamp[4];
 487         u16 generator_id;
 488         u8 evm_rev;
 489         u8 sensor_type;
 490         u8 sensor_num;
 491         u8 event_dir;
 492         u8 event_data1;
 493         u8 event_data2;
 494         u8 event_data3;
 495 } sal_log_sel_dev_err_info_t;
 496
 497 typedef struct sal_log_pci_bus_err_info {
 498         sal_log_section_hdr_t header;
 499         struct {
 500                 u64 err_status      : 1,
 501                     err_type        : 1,
 502                     bus_id          : 1,
 503                     bus_address     : 1,
 504                     bus_data        : 1,
 505                     bus_cmd         : 1,
 506                     requestor_id    : 1,
 507                     responder_id    : 1,
 508                     target_id       : 1,
 509                     oem_data        : 1,
 510                     reserved        : 54;
 511         } valid;
 512         u64 err_status;
 513         u16 err_type;
 514         u16 bus_id;
 515         u32 reserved;
 516         u64 bus_address;
 517         u64 bus_data;
 518         u64 bus_cmd;
 519         u64 requestor_id;
 520         u64 responder_id;
 521         u64 target_id;
 522         u8 oem_data[1];                 /* Variable length data */
 523 } sal_log_pci_bus_err_info_t;
 524
 525 typedef struct sal_log_smbios_dev_err_info {
 526         sal_log_section_hdr_t header;
 527         struct {
 528                 u64 event_type      : 1,
 529                     length          : 1,
 530                     time_stamp      : 1,
 531                     data            : 1,
 532                     reserved1       : 60;
 533         } valid;
 534         u8 event_type;
 535         u8 length;
 536         u8 time_stamp[6];
 537         u8 data[1];                     /* data of variable length, length == slsmb_length */
 538 } sal_log_smbios_dev_err_info_t;
 539
 540 typedef struct sal_log_pci_comp_err_info {
 541         sal_log_section_hdr_t header;
 542         struct {
 543                 u64 err_status      : 1,
 544                     comp_info       : 1,
 545                     num_mem_regs    : 1,
 546                     num_io_regs     : 1,
 547                     reg_data_pairs  : 1,
 548                     oem_data        : 1,
 549                     reserved        : 58;
 550         } valid;
 551         u64 err_status;
 552         struct {
 553                 u16 vendor_id;
 554                 u16 device_id;
 555                 u8 class_code[3];
 556                 u8 func_num;
 557                 u8 dev_num;
 558                 u8 bus_num;
 559                 u8 seg_num;
 560                 u8 reserved[5];
 561         } comp_info;
 562         u32 num_mem_regs;
 563         u32 num_io_regs;
 564         u64 reg_data_pairs[1];
 565         /*
 566          * array of address/data register pairs is num_mem_regs + num_io_regs elements
 567          * long.  Each array element consists of a u64 address followed by a u64 data
 568          * value.  The oem_data array immediately follows the reg_data_pairs array
 569          */
 570         u8 oem_data[1];                 /* Variable length data */
 571 } sal_log_pci_comp_err_info_t;
 572
 573 typedef struct sal_log_plat_specific_err_info {
 574         sal_log_section_hdr_t header;
 575         struct {
 576                 u64 err_status      : 1,
 577                     guid            : 1,
 578                     oem_data        : 1,
 579                     reserved        : 61;
 580         } valid;
 581         u64 err_status;
 582         efi_guid_t guid;
 583         u8 oem_data[1];                 /* platform specific variable length data */
 584 } sal_log_plat_specific_err_info_t;
 585
 586 typedef struct sal_log_host_ctlr_err_info {
 587         sal_log_section_hdr_t header;
 588         struct {
 589                 u64 err_status      : 1,
 590                     requestor_id    : 1,
 591                     responder_id    : 1,
 592                     target_id       : 1,
 593                     bus_spec_data   : 1,
 594                     oem_data        : 1,
 595                     reserved        : 58;
 596         } valid;
 597         u64 err_status;
 598         u64 requestor_id;
 599         u64 responder_id;
 600         u64 target_id;
 601         u64 bus_spec_data;
 602         u8 oem_data[1];                 /* Variable length OEM data */
 603 } sal_log_host_ctlr_err_info_t;
 604
 605 typedef struct sal_log_plat_bus_err_info {
 606         sal_log_section_hdr_t header;
 607         struct {
 608                 u64 err_status      : 1,
 609                     requestor_id    : 1,
 610                     responder_id    : 1,
 611                     target_id       : 1,
 612                     bus_spec_data   : 1,
 613                     oem_data        : 1,
 614                     reserved        : 58;
 615         } valid;
 616         u64 err_status;
 617         u64 requestor_id;
 618         u64 responder_id;
 619         u64 target_id;
 620         u64 bus_spec_data;
 621         u8 oem_data[1];                 /* Variable length OEM data */
 622 } sal_log_plat_bus_err_info_t;
 623
 624 /* Overall platform error section structure */
 625 typedef union sal_log_platform_err_info {
 626         sal_log_mem_dev_err_info_t mem_dev_err;
 627         sal_log_sel_dev_err_info_t sel_dev_err;
 628         sal_log_pci_bus_err_info_t pci_bus_err;
 629         sal_log_smbios_dev_err_info_t smbios_dev_err;
 630         sal_log_pci_comp_err_info_t pci_comp_err;
 631         sal_log_plat_specific_err_info_t plat_specific_err;
 632         sal_log_host_ctlr_err_info_t host_ctlr_err;
 633         sal_log_plat_bus_err_info_t plat_bus_err;
 634 } sal_log_platform_err_info_t;
 635
 636 /* SAL log over-all, multi-section error record structure (processor+platform) */
 637 typedef struct err_rec {
 638         sal_log_record_header_t sal_elog_header;
 639         sal_log_processor_info_t proc_err;
 640         sal_log_platform_err_info_t plat_err;
 641         u8 oem_data_pad[1024];
 642 } ia64_err_rec_t;
 643
 644 /*
 645  * Now define a couple of inline functions for improved type checking
 646  * and convenience.
 647  */
 648 static inline long
 649 ia64_sal_freq_base (unsigned long which, unsigned long *ticks_per_second,
 650                     unsigned long *drift_info)
 651 {
 652         struct ia64_sal_retval isrv;
 653
 654         SAL_CALL(isrv, SAL_FREQ_BASE, which, 0, 0, 0, 0, 0, 0);
 655         *ticks_per_second = isrv.v0;
 656         *drift_info = isrv.v1;
 657         return isrv.status;
 658 }
 659
 660 /* Flush all the processor and platform level instruction and/or data caches */
 661 static inline s64
 662 ia64_sal_cache_flush (u64 cache_type)
 663 {
 664         struct ia64_sal_retval isrv;
 665         SAL_CALL(isrv, SAL_CACHE_FLUSH, cache_type, 0, 0, 0, 0, 0, 0);
 666         return isrv.status;
 667 }
 668
 669
 670 /* Initialize all the processor and platform level instruction and data caches */
 671 static inline s64
 672 ia64_sal_cache_init (void)
 673 {
 674         struct ia64_sal_retval isrv;
 675         SAL_CALL(isrv, SAL_CACHE_INIT, 0, 0, 0, 0, 0, 0, 0);
 676         return isrv.status;
 677 }
 678
 679 /*
 680  * Clear the processor and platform information logged by SAL with respect to the machine
 681  * state at the time of MCA's, INITs, CMCs, or CPEs.
 682  */
 683 static inline s64
 684 ia64_sal_clear_state_info (u64 sal_info_type)
 685 {
 686         struct ia64_sal_retval isrv;
 687         SAL_CALL_REENTRANT(isrv, SAL_CLEAR_STATE_INFO, sal_info_type, 0,
 688                       0, 0, 0, 0, 0);
 689         return isrv.status;
 690 }
 691
 692
 693 /* Get the processor and platform information logged by SAL with respect to the machine
 694  * state at the time of the MCAs, INITs, CMCs, or CPEs.
 695  */
 696 static inline u64
 697 ia64_sal_get_state_info (u64 sal_info_type, u64 *sal_info)
 698 {
 699         struct ia64_sal_retval isrv;
 700         SAL_CALL_REENTRANT(isrv, SAL_GET_STATE_INFO, sal_info_type, 0,
 701                       sal_info, 0, 0, 0, 0);
 702         if (isrv.status)
 703                 return 0;
 704
 705         return isrv.v0;
 706 }
 707
 708 /*
 709  * Get the maximum size of the information logged by SAL with respect to the machine state
 710  * at the time of MCAs, INITs, CMCs, or CPEs.
 711  */
 712 static inline u64
 713 ia64_sal_get_state_info_size (u64 sal_info_type)
 714 {
 715         struct ia64_sal_retval isrv;
 716         SAL_CALL_REENTRANT(isrv, SAL_GET_STATE_INFO_SIZE, sal_info_type, 0,
 717                       0, 0, 0, 0, 0);
 718         if (isrv.status)
 719                 return 0;
 720         return isrv.v0;
 721 }
 722
 723 /*
 724  * Causes the processor to go into a spin loop within SAL where SAL awaits a wakeup from
 725  * the monarch processor.  Must not lock, because it will not return on any cpu until the
 726  * monarch processor sends a wake up.
 727  */
 728 static inline s64
 729 ia64_sal_mc_rendez (void)
 730 {
 731         struct ia64_sal_retval isrv;
 732         SAL_CALL_NOLOCK(isrv, SAL_MC_RENDEZ, 0, 0, 0, 0, 0, 0, 0);
 733         return isrv.status;
 734 }
 735
 736 /*
 737  * Allow the OS to specify the interrupt number to be used by SAL to interrupt OS during
 738  * the machine check rendezvous sequence as well as the mechanism to wake up the
 739  * non-monarch processor at the end of machine check processing.
 740  * Returns the complete ia64_sal_retval because some calls return more than just a status
 741  * value.
 742  */
 743 static inline struct ia64_sal_retval
 744 ia64_sal_mc_set_params (u64 param_type, u64 i_or_m, u64 i_or_m_val, u64 timeout, u64 rz_always)
 745 {
 746         struct ia64_sal_retval isrv;
 747         SAL_CALL(isrv, SAL_MC_SET_PARAMS, param_type, i_or_m, i_or_m_val,
 748                  timeout, rz_always, 0, 0);
 749         return isrv;
 750 }
 751
 752 /* Read from PCI configuration space */
 753 static inline s64
 754 ia64_sal_pci_config_read (u64 pci_config_addr, int type, u64 size, u64 *value)
 755 {
 756         struct ia64_sal_retval isrv;
 757         SAL_CALL(isrv, SAL_PCI_CONFIG_READ, pci_config_addr, size, type, 0, 0, 0, 0);
 758         if (value)
 759                 *value = isrv.v0;
 760         return isrv.status;
 761 }
 762
 763 /* Write to PCI configuration space */
 764 static inline s64
 765 ia64_sal_pci_config_write (u64 pci_config_addr, int type, u64 size, u64 value)
 766 {
 767         struct ia64_sal_retval isrv;
 768         SAL_CALL(isrv, SAL_PCI_CONFIG_WRITE, pci_config_addr, size, value,
 769                  type, 0, 0, 0);
 770         return isrv.status;
 771 }
 772
 773 /*
 774  * Register physical addresses of locations needed by SAL when SAL procedures are invoked
 775  * in virtual mode.
 776  */
 777 static inline s64
 778 ia64_sal_register_physical_addr (u64 phys_entry, u64 phys_addr)
 779 {
 780         struct ia64_sal_retval isrv;
 781         SAL_CALL(isrv, SAL_REGISTER_PHYSICAL_ADDR, phys_entry, phys_addr,
 782                  0, 0, 0, 0, 0);
 783         return isrv.status;
 784 }
 785
 786 /*
 787  * Register software dependent code locations within SAL. These locations are handlers or
 788  * entry points where SAL will pass control for the specified event. These event handlers
 789  * are for the bott rendezvous, MCAs and INIT scenarios.
 790  */
 791 static inline s64
 792 ia64_sal_set_vectors (u64 vector_type,
 793                       u64 handler_addr1, u64 gp1, u64 handler_len1,
 794                       u64 handler_addr2, u64 gp2, u64 handler_len2)
 795 {
 796         struct ia64_sal_retval isrv;
 797         SAL_CALL(isrv, SAL_SET_VECTORS, vector_type,
 798                         handler_addr1, gp1, handler_len1,
 799                         handler_addr2, gp2, handler_len2);
 800
 801         return isrv.status;
 802 }
 803
 804 /* Update the contents of PAL block in the non-volatile storage device */
 805 static inline s64
 806 ia64_sal_update_pal (u64 param_buf, u64 scratch_buf, u64 scratch_buf_size,
 807                      u64 *error_code, u64 *scratch_buf_size_needed)
 808 {
 809         struct ia64_sal_retval isrv;
 810         SAL_CALL(isrv, SAL_UPDATE_PAL, param_buf, scratch_buf, scratch_buf_size,
 811                  0, 0, 0, 0);
 812         if (error_code)
 813                 *error_code = isrv.v0;
 814         if (scratch_buf_size_needed)
 815                 *scratch_buf_size_needed = isrv.v1;
 816         return isrv.status;
 817 }
 818
 819 /* Get physical processor die mapping in the platform. */
 820 static inline s64
 821 ia64_sal_physical_id_info(u16 *splid)
 822 {
 823         struct ia64_sal_retval isrv;
 824         SAL_CALL(isrv, SAL_PHYSICAL_ID_INFO, 0, 0, 0, 0, 0, 0, 0);
 825         if (splid)
 826                 *splid = isrv.v0;
 827         return isrv.status;
 828 }
 829
 830 extern unsigned long sal_platform_features;
 831
 832 extern int (*salinfo_platform_oemdata)(const u8 *, u8 **, u64 *);
 833
 834 struct sal_ret_values {
 835         long r8; long r9; long r10; long r11;
 836 };
 837
 838 #define IA64_SAL_OEMFUNC_MIN            0x02000000
 839 #define IA64_SAL_OEMFUNC_MAX            0x03ffffff
 840
 841 extern int ia64_sal_oemcall(struct ia64_sal_retval *, u64, u64, u64, u64, u64,
 842                             u64, u64, u64);
 843 extern int ia64_sal_oemcall_nolock(struct ia64_sal_retval *, u64, u64, u64,
 844                                    u64, u64, u64, u64, u64);
 845 extern int ia64_sal_oemcall_reentrant(struct ia64_sal_retval *, u64, u64, u64,
 846                                       u64, u64, u64, u64, u64);
 847 #ifdef CONFIG_HOTPLUG_CPU
 848 /*
 849  * System Abstraction Layer Specification
 850  * Section 3.2.5.1: OS_BOOT_RENDEZ to SAL return State.
 851  * Note: region regs are stored first in head.S _start. Hence they must
 852  * stay up front.
 853  */
 854 struct sal_to_os_boot {
 855         u64 rr[8];              /* Region Registers */
 856         u64     br[6];          /* br0: return addr into SAL boot rendez routine */
 857         u64 gr1;                /* SAL:GP */
 858         u64 gr12;               /* SAL:SP */
 859         u64 gr13;               /* SAL: Task Pointer */
 860         u64 fpsr;
 861         u64     pfs;
 862         u64 rnat;
 863         u64 unat;
 864         u64 bspstore;
 865         u64 dcr;                /* Default Control Register */
 866         u64 iva;
 867         u64 pta;
 868         u64 itv;
 869         u64 pmv;
 870         u64 cmcv;
 871         u64 lrr[2];
 872         u64 gr[4];
 873         u64 pr;                 /* Predicate registers */
 874         u64 lc;                 /* Loop Count */
 875         struct ia64_fpreg fp[20];
 876 };
 877
 878 /*
 879  * Global array allocated for NR_CPUS at boot time
 880  */
 881 extern struct sal_to_os_boot sal_boot_rendez_state[NR_CPUS];
 882
 883 extern void ia64_jump_to_sal(struct sal_to_os_boot *);
 884 #endif
 885
 886 extern void ia64_sal_handler_init(void *entry_point, void *gpval);
 887
 888 #endif /* __ASSEMBLY__ */
 889
 890 #endif /* _ASM_IA64_SAL_H */