arch/ia64/kernel/mca_drv.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * File:        mca_drv.h
   4  * Purpose:     Define helpers for Generic MCA handling
   5  *
   6  * Copyright (C) 2004 FUJITSU LIMITED
   7  * Copyright (C) 2004 Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
   8  */
   9 /*
  10  * Processor error section:
  11  *
  12  *  +-sal_log_processor_info_t *info-------------+
  13  *  | sal_log_section_hdr_t header;              |
  14  *  | ...                                        |
  15  *  | sal_log_mod_error_info_t info[0];          |
  16  *  +-+----------------+-------------------------+
  17  *    | CACHE_CHECK    |  ^ num_cache_check v
  18  *    +----------------+
  19  *    | TLB_CHECK      |  ^ num_tlb_check v
  20  *    +----------------+
  21  *    | BUS_CHECK      |  ^ num_bus_check v
  22  *    +----------------+
  23  *    | REG_FILE_CHECK |  ^ num_reg_file_check v
  24  *    +----------------+
  25  *    | MS_CHECK       |  ^ num_ms_check v
  26  *  +-struct cpuid_info *id----------------------+
  27  *  | regs[5];                                   |
  28  *  | reserved;                                  |
  29  *  +-sal_processor_static_info_t *regs----------+
  30  *  | valid;                                     |
  31  *  | ...                                        |
  32  *  | fr[128];                                   |
  33  *  +--------------------------------------------+
  34  */
  35
  36 /* peidx: index of processor error section */
  37 typedef struct peidx_table {
  38         sal_log_processor_info_t        *info;
  39         struct sal_cpuid_info           *id;
  40         sal_processor_static_info_t     *regs;
  41 } peidx_table_t;
  42
  43 #define peidx_head(p)   (((p)->info))
  44 #define peidx_mid(p)    (((p)->id))
  45 #define peidx_bottom(p) (((p)->regs))
  46
  47 #define peidx_psp(p)           (&(peidx_head(p)->proc_state_parameter))
  48 #define peidx_field_valid(p)   (&(peidx_head(p)->valid))
  49 #define peidx_minstate_area(p) (&(peidx_bottom(p)->min_state_area))
  50
  51 #define peidx_cache_check_num(p)    (peidx_head(p)->valid.num_cache_check)
  52 #define peidx_tlb_check_num(p)      (peidx_head(p)->valid.num_tlb_check)
  53 #define peidx_bus_check_num(p)      (peidx_head(p)->valid.num_bus_check)
  54 #define peidx_reg_file_check_num(p) (peidx_head(p)->valid.num_reg_file_check)
  55 #define peidx_ms_check_num(p)       (peidx_head(p)->valid.num_ms_check)
  56
  57 #define peidx_cache_check_idx(p, n)    (n)
  58 #define peidx_tlb_check_idx(p, n)      (peidx_cache_check_idx(p, peidx_cache_check_num(p)) + n)
  59 #define peidx_bus_check_idx(p, n)      (peidx_tlb_check_idx(p, peidx_tlb_check_num(p)) + n)
  60 #define peidx_reg_file_check_idx(p, n) (peidx_bus_check_idx(p, peidx_bus_check_num(p)) + n)
  61 #define peidx_ms_check_idx(p, n)       (peidx_reg_file_check_idx(p, peidx_reg_file_check_num(p)) + n)
  62
  63 #define peidx_mod_error_info(p, name, n) \
  64 ({      int __idx = peidx_##name##_idx(p, n); \
  65         sal_log_mod_error_info_t *__ret = NULL; \
  66         if (peidx_##name##_num(p) > n) /*BUG*/ \
  67                 __ret = &(peidx_head(p)->info[__idx]); \
  68         __ret; })
  69
  70 #define peidx_cache_check(p, n)    peidx_mod_error_info(p, cache_check, n)
  71 #define peidx_tlb_check(p, n)      peidx_mod_error_info(p, tlb_check, n)
  72 #define peidx_bus_check(p, n)      peidx_mod_error_info(p, bus_check, n)
  73 #define peidx_reg_file_check(p, n) peidx_mod_error_info(p, reg_file_check, n)
  74 #define peidx_ms_check(p, n)       peidx_mod_error_info(p, ms_check, n)
  75
  76 #define peidx_check_info(proc, name, n) \
  77 ({ \
  78         sal_log_mod_error_info_t *__info = peidx_mod_error_info(proc, name, n);\
  79         u64 __temp = __info && __info->valid.check_info \
  80                 ? __info->check_info : 0; \
  81         __temp; })
  82
  83 /* slidx: index of SAL log error record */
  84
  85 typedef struct slidx_list {
  86         struct list_head list;
  87         sal_log_section_hdr_t *hdr;
  88 } slidx_list_t;
  89
  90 typedef struct slidx_table {
  91         sal_log_record_header_t *header;
  92         int n_sections;                 /* # of section headers */
  93         struct list_head proc_err;
  94         struct list_head mem_dev_err;
  95         struct list_head sel_dev_err;
  96         struct list_head pci_bus_err;
  97         struct list_head smbios_dev_err;
  98         struct list_head pci_comp_err;
  99         struct list_head plat_specific_err;
 100         struct list_head host_ctlr_err;
 101         struct list_head plat_bus_err;
 102         struct list_head unsupported;   /* list of unsupported sections */
 103 } slidx_table_t;
 104
 105 #define slidx_foreach_entry(pos, head) \
 106         list_for_each_entry(pos, head, list)
 107 #define slidx_first_entry(head) \
 108         (((head)->next != (head)) ? list_entry((head)->next, typeof(slidx_list_t), list) : NULL)
 109 #define slidx_count(slidx, sec) \
 110 ({      int __count = 0; \
 111         slidx_list_t *__pos; \
 112         slidx_foreach_entry(__pos, &((slidx)->sec)) { __count++; }\
 113         __count; })
 114
 115 struct mca_table_entry {
 116         int start_addr; /* location-relative starting address of MCA recoverable range */
 117         int end_addr;   /* location-relative ending address of MCA recoverable range */
 118 };
 119
 120 extern const struct mca_table_entry *search_mca_tables (unsigned long addr);
 121 extern int mca_recover_range(unsigned long);
 122 extern void ia64_mlogbuf_dump(void);
 123