arch/x86/kernel/cpu/mcheck/mce-internal.h

   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
  40 static inline bool mce_intel_cmci_poll(void) { return false; }
  41 static inline void mce_intel_hcpu_update(unsigned long cpu) { }
  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
  53 static inline int apei_write_mce(struct mce *m)
  54 {
  55         return -EINVAL;
  56 }
  57 static inline ssize_t apei_read_mce(struct mce *m, u64 *record_id)
  58 {
  59         return 0;
  60 }
  61 static inline int apei_check_mce(void)
  62 {
  63         return 0;
  64 }
  65 static inline int apei_clear_mce(u64 record_id)
  66 {
  67         return -EINVAL;
  68 }
  69 #endif