LXR linux/arch/ia64/kernel/mca

   1/*
   2 * File:        mca_drv.h
   3 * Purpose:     Define helpers for Generic MCA handling
   4 *
   5 * Copyright (C) 2004 FUJITSU LIMITED
   6 * Copyright (C) 2004 Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
   7 */
   8/*
   9 * Processor error section:
  10 *
  11 *  +-sal_log_processor_info_t *info-------------+
  12 *  | sal_log_section_hdr_t header;              |
  13 *  | ...                                        |
  14 *  | sal_log_mod_error_info_t info[0];          |
  15 *  +-+----------------+-------------------------+
  16 *    | CACHE_CHECK    |  ^ num_cache_check v
  17 *    +----------------+
  18 *    | TLB_CHECK      |  ^ num_tlb_check v
  19 *    +----------------+
  20 *    | BUS_CHECK      |  ^ num_bus_check v
  21 *    +----------------+
  22 *    | REG_FILE_CHECK |  ^ num_reg_file_check v
  23 *    +----------------+
  24 *    | MS_CHECK       |  ^ num_ms_check v
  25 *  +-struct cpuid_info *id----------------------+
  26 *  | regs[5];                                   |
  27 *  | reserved;                                  |
  28 *  +-sal_processor_static_info_t *regs----------+
  29 *  | valid;                                     |
  30 *  | ...                                        |
  31 *  | fr[128];                                   |
  32 *  +--------------------------------------------+
  33 */
  34
  35/* peidx: index of processor error section */
  36typedef struct peidx_table {
  37        sal_log_processor_info_t        *info;
  38        struct sal_cpuid_info           *id;
  39        sal_processor_static_info_t     *regs;
  40} peidx_table_t;
  41
  42#define peidx_head(p)   (((p)->info))
  43#define peidx_mid(p)    (((p)->id))
  44#define peidx_bottom(p) (((p)->regs))
  45
  46#define peidx_psp(p)           (&(peidx_head(p)->proc_state_parameter))
  47#define peidx_field_valid(p)   (&(peidx_head(p)->valid))
  48#define peidx_minstate_area(p) (&(peidx_bottom(p)->min_state_area))
  49
  50#define peidx_cache_check_num(p)    (peidx_head(p)->valid.num_cache_check)
  51#define peidx_tlb_check_num(p)      (peidx_head(p)->valid.num_tlb_check)
  52#define peidx_bus_check_num(p)      (peidx_head(p)->valid.num_bus_check)
  53#define peidx_reg_file_check_num(p) (peidx_head(p)->valid.num_reg_file_check)
  54#define peidx_ms_check_num(p)       (peidx_head(p)->valid.num_ms_check)
  55
  56#define peidx_cache_check_idx(p, n)    (n)
  57#define peidx_tlb_check_idx(p, n)      (peidx_cache_check_idx(p, peidx_cache_check_num(p)) + n)
  58#define peidx_bus_check_idx(p, n)      (peidx_tlb_check_idx(p, peidx_tlb_check_num(p)) + n)
  59#define peidx_reg_file_check_idx(p, n) (peidx_bus_check_idx(p, peidx_bus_check_num(p)) + n)
  60#define peidx_ms_check_idx(p, n)       (peidx_reg_file_check_idx(p, peidx_reg_file_check_num(p)) + n)
  61
  62#define peidx_mod_error_info(p, name, n) \
  63({      int __idx = peidx_##name##_idx(p, n); \
  64        sal_log_mod_error_info_t *__ret = NULL; \
  65        if (peidx_##name##_num(p) > n) /*BUG*/ \
  66                __ret = &(peidx_head(p)->info[__idx]); \
  67        __ret; })
  68
  69#define peidx_cache_check(p, n)    peidx_mod_error_info(p, cache_check, n)
  70#define peidx_tlb_check(p, n)      peidx_mod_error_info(p, tlb_check, n)
  71#define peidx_bus_check(p, n)      peidx_mod_error_info(p, bus_check, n)
  72#define peidx_reg_file_check(p, n) peidx_mod_error_info(p, reg_file_check, n)
  73#define peidx_ms_check(p, n)       peidx_mod_error_info(p, ms_check, n)
  74
  75#define peidx_check_info(proc, name, n) \
  76({ \
  77        sal_log_mod_error_info_t *__info = peidx_mod_error_info(proc, name, n);\
  78        u64 __temp = __info && __info->valid.check_info \
  79                ? __info->check_info : 0; \
  80        __temp; })
  81
  82/* slidx: index of SAL log error record */
  83
  84typedef struct slidx_list {
  85        struct list_head list;
  86        sal_log_section_hdr_t *hdr;
  87} slidx_list_t;
  88
  89typedef struct slidx_table {
  90        sal_log_record_header_t *header;
  91        int n_sections;                 /* # of section headers */
  92        struct list_head proc_err;
  93        struct list_head mem_dev_err;
  94        struct list_head sel_dev_err;
  95        struct list_head pci_bus_err;
  96        struct list_head smbios_dev_err;
  97        struct list_head pci_comp_err;
  98        struct list_head plat_specific_err;
  99        struct list_head host_ctlr_err;
 100        struct list_head plat_bus_err;
 101        struct list_head unsupported;   /* list of unsupported sections */
 102} slidx_table_t;
 103
 104#define slidx_foreach_entry(pos, head) \
 105        list_for_each_entry(pos, head, list)
 106#define slidx_first_entry(head) \
 107        (((head)->next != (head)) ? list_entry((head)->next, typeof(slidx_list_t), list) : NULL)
 108#define slidx_count(slidx, sec) \
 109({      int __count = 0; \
 110        slidx_list_t *__pos; \
 111        slidx_foreach_entry(__pos, &((slidx)->sec)) { __count++; }\
 112        __count; })
 113
 114struct mca_table_entry {
 115        int start_addr; /* location-relative starting address of MCA recoverable range */
 116        int end_addr;   /* location-relative ending address of MCA recoverable range */
 117};
 118
 119extern const struct mca_table_entry *search_mca_tables (unsigned long addr);
 120extern int mca_recover_range(unsigned long);
 121extern void ia64_mlogbuf_dump(void);
 122
 123