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