arch/ia64/kernel/mca_drv.h

   1 /*
   2  * File:        mca_drv.h
   3  * Purpose:     Define helpers for Generic MCA handling
   4  *
   5  * Copyright (C) 2004 FUJITSU LIMITED
   6  * Copyright (C) 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 */
  36 typedef 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
  84 typedef struct slidx_list {
  85         struct list_head list;
  86         sal_log_section_hdr_t *hdr;
  87 } slidx_list_t;
  88
  89 typedef 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
 114 struct 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
 119 extern const struct mca_table_entry *search_mca_tables (unsigned long addr);
 120 extern int mca_recover_range(unsigned long);