1 #include <linux/device.h>
2 #include <asm/mce.h>
3
4 enum severity_level {
5 MCE_NO_SEVERITY,
6 MCE_DEFERRED_SEVERITY,
7 MCE_UCNA_SEVERITY = MCE_DEFERRED_SEVERITY,
8 MCE_KEEP_SEVERITY,
9 MCE_SOME_SEVERITY,
10 MCE_AO_SEVERITY,
11 MCE_UC_SEVERITY,
12 MCE_AR_SEVERITY,
13 MCE_PANIC_SEVERITY,
14 };
15
16 #define ATTR_LEN 16
17 #define INITIAL_CHECK_INTERVAL 5 * 60 /* 5 minutes */
18
19 /* One object for each MCE bank, shared by all CPUs */
20 struct mce_bank {
21 u64 ctl; /* subevents to enable */
22 unsigned char init; /* initialise bank? */
23 struct device_attribute attr; /* device attribute */
24 char attrname[ATTR_LEN]; /* attribute name */
25 };
26
27 extern int (*mce_severity)(struct mce *a, int tolerant, char **msg, bool is_excp);
28 struct dentry *mce_get_debugfs_dir(void);
29
30 extern struct mce_bank *mce_banks;
31 extern mce_banks_t mce_banks_ce_disabled;
32
33 #ifdef CONFIG_X86_MCE_INTEL
34 unsigned long cmci_intel_adjust_timer(unsigned long interval);
35 bool mce_intel_cmci_poll(void);
36 void mce_intel_hcpu_update(unsigned long cpu);
37 void cmci_disable_bank(int bank);
38 #else
39 # define cmci_intel_adjust_timer mce_adjust_timer_default
mce_intel_cmci_poll(void)40 static inline bool mce_intel_cmci_poll(void) { return false; }
mce_intel_hcpu_update(unsigned long cpu)41 static inline void mce_intel_hcpu_update(unsigned long cpu) { }
cmci_disable_bank(int bank)42 static inline void cmci_disable_bank(int bank) { }
43 #endif
44
45 void mce_timer_kick(unsigned long interval);
46
47 #ifdef CONFIG_ACPI_APEI
48 int apei_write_mce(struct mce *m);
49 ssize_t apei_read_mce(struct mce *m, u64 *record_id);
50 int apei_check_mce(void);
51 int apei_clear_mce(u64 record_id);
52 #else
apei_write_mce(struct mce * m)53 static inline int apei_write_mce(struct mce *m)
54 {
55 return -EINVAL;
56 }
apei_read_mce(struct mce * m,u64 * record_id)57 static inline ssize_t apei_read_mce(struct mce *m, u64 *record_id)
58 {
59 return 0;
60 }
apei_check_mce(void)61 static inline int apei_check_mce(void)
62 {
63 return 0;
64 }
apei_clear_mce(u64 record_id)65 static inline int apei_clear_mce(u64 record_id)
66 {
67 return -EINVAL;
68 }
69 #endif
70