include/acpi/ghes.h

   1 #include <acpi/apei.h>
   2 #include <acpi/hed.h>
   3
   4 /*
   5  * One struct ghes is created for each generic hardware error source.
   6  * It provides the context for APEI hardware error timer/IRQ/SCI/NMI
   7  * handler.
   8  *
   9  * estatus: memory buffer for error status block, allocated during
  10  * HEST parsing.
  11  */
  12 #define GHES_TO_CLEAR           0x0001
  13 #define GHES_EXITING            0x0002
  14
  15 struct ghes {
  16         struct acpi_hest_generic *generic;
  17         struct acpi_generic_status *estatus;
  18         u64 buffer_paddr;
  19         unsigned long flags;
  20         union {
  21                 struct list_head list;
  22                 struct timer_list timer;
  23                 unsigned int irq;
  24         };
  25 };
  26
  27 struct ghes_estatus_node {
  28         struct llist_node llnode;
  29         struct acpi_hest_generic *generic;
  30         struct ghes *ghes;
  31 };
  32
  33 struct ghes_estatus_cache {
  34         u32 estatus_len;
  35         atomic_t count;
  36         struct acpi_hest_generic *generic;
  37         unsigned long long time_in;
  38         struct rcu_head rcu;
  39 };
  40
  41 enum {
  42         GHES_SEV_NO = 0x0,
  43         GHES_SEV_CORRECTED = 0x1,
  44         GHES_SEV_RECOVERABLE = 0x2,
  45         GHES_SEV_PANIC = 0x3,
  46 };
  47
  48 /* From drivers/edac/ghes_edac.c */
  49
  50 #ifdef CONFIG_EDAC_GHES
  51 void ghes_edac_report_mem_error(struct ghes *ghes, int sev,
  52                                 struct cper_sec_mem_err *mem_err);
  53
  54 int ghes_edac_register(struct ghes *ghes, struct device *dev);
  55
  56 void ghes_edac_unregister(struct ghes *ghes);
  57
  58 #else
  59 static inline void ghes_edac_report_mem_error(struct ghes *ghes, int sev,
  60                                        struct cper_sec_mem_err *mem_err)
  61 {
  62 }
  63
  64 static inline int ghes_edac_register(struct ghes *ghes, struct device *dev)
  65 {
  66         return 0;
  67 }
  68
  69 static inline void ghes_edac_unregister(struct ghes *ghes)
  70 {
  71 }
  72 #endif