root/include/acpi/ghes.h

DEFINITIONS

1. ghes_edac_report_mem_error
2. ghes_edac_register
3. ghes_edac_unregister

#include <acpi/apei.h>
#include <acpi/hed.h>

/*
 * One struct ghes is created for each generic hardware error source.
 * It provides the context for APEI hardware error timer/IRQ/SCI/NMI
 * handler.
 *
 * estatus: memory buffer for error status block, allocated during
 * HEST parsing.
 */
#define GHES_TO_CLEAR           0x0001
#define GHES_EXITING            0x0002

struct ghes {
        struct acpi_hest_generic *generic;
        struct acpi_hest_generic_status *estatus;
        u64 buffer_paddr;
        unsigned long flags;
        union {
                struct list_head list;
                struct timer_list timer;
                unsigned int irq;
        };
};

struct ghes_estatus_node {
        struct llist_node llnode;
        struct acpi_hest_generic *generic;
        struct ghes *ghes;
};

struct ghes_estatus_cache {
        u32 estatus_len;
        atomic_t count;
        struct acpi_hest_generic *generic;
        unsigned long long time_in;
        struct rcu_head rcu;
};

enum {
        GHES_SEV_NO = 0x0,
        GHES_SEV_CORRECTED = 0x1,
        GHES_SEV_RECOVERABLE = 0x2,
        GHES_SEV_PANIC = 0x3,
};

/* From drivers/edac/ghes_edac.c */

#ifdef CONFIG_EDAC_GHES
void ghes_edac_report_mem_error(struct ghes *ghes, int sev,
                                struct cper_sec_mem_err *mem_err);

int ghes_edac_register(struct ghes *ghes, struct device *dev);

void ghes_edac_unregister(struct ghes *ghes);

#else
static inline void ghes_edac_report_mem_error(struct ghes *ghes, int sev,
                                       struct cper_sec_mem_err *mem_err)
{
}

static inline int ghes_edac_register(struct ghes *ghes, struct device *dev)
{
        return 0;
}

static inline void ghes_edac_unregister(struct ghes *ghes)
{
}
#endif