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Name	Size	Permission	Date
platform	[ DIR ]	drwxr-xr-x	2026-06-04 06:36
acbuffer.h	8.92 KB	-rw-r--r--	2024-03-10 20:38
acconfig.h	7.45 KB	-rw-r--r--	2024-03-10 20:38
acexcep.h	16.94 KB	-rw-r--r--	2024-03-10 20:38
acnames.h	2.22 KB	-rw-r--r--	2024-03-10 20:38
acoutput.h	16.67 KB	-rw-r--r--	2026-05-26 09:55
acpi.h	1.33 KB	-rw-r--r--	2024-03-10 20:38
acpi_bus.h	28.56 KB	-rw-r--r--	2026-05-26 09:55
acpi_drivers.h	2.65 KB	-rw-r--r--	2024-03-10 20:38
acpi_io.h	723 B	-rw-r--r--	2024-03-10 20:38
acpi_lpat.h	1.16 KB	-rw-r--r--	2024-03-10 20:38
acpi_numa.h	944 B	-rw-r--r--	2024-03-10 20:38
acpiosxf.h	11.35 KB	-rw-r--r--	2024-03-10 20:38
acpixf.h	31.46 KB	-rw-r--r--	2026-05-26 09:55
acrestyp.h	19.5 KB	-rw-r--r--	2024-03-10 20:38
actbl.h	18.37 KB	-rw-r--r--	2024-03-10 20:38
actbl1.h	47.75 KB	-rw-r--r--	2024-03-10 20:38
actbl2.h	78.72 KB	-rw-r--r--	2024-03-10 20:38
actbl3.h	22.12 KB	-rw-r--r--	2024-03-10 20:38
actypes.h	42.23 KB	-rw-r--r--	2026-05-26 09:55
acuuid.h	3.59 KB	-rw-r--r--	2024-03-10 20:38
apei.h	1.4 KB	-rw-r--r--	2024-03-10 20:38
battery.h	658 B	-rw-r--r--	2024-03-10 20:38
button.h	401 B	-rw-r--r--	2024-03-10 20:38
cppc_acpi.h	5.72 KB	-rw-r--r--	2026-05-26 09:55
ghes.h	3.56 KB	-rw-r--r--	2024-03-10 20:38
hed.h	370 B	-rw-r--r--	2024-03-10 20:38
nfit.h	351 B	-rw-r--r--	2024-03-10 20:38
pcc.h	1.44 KB	-rw-r--r--	2026-05-26 09:55
proc_cap_intel.h	1.35 KB	-rw-r--r--	2024-03-10 20:38
processor.h	12 KB	-rw-r--r--	2024-03-10 20:38
reboot.h	201 B	-rw-r--r--	2024-03-10 20:38
video.h	3.74 KB	-rw-r--r--	2026-05-26 09:55

Rename

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef GHES_H
#define GHES_H

#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_EXITING		0x0002

struct ghes {
	union {
		struct acpi_hest_generic *generic;
		struct acpi_hest_generic_v2 *generic_v2;
	};
	struct acpi_hest_generic_status *estatus;
	unsigned long flags;
	union {
		struct list_head list;
		struct timer_list timer;
		unsigned int irq;
	};
	struct device *dev;
	struct list_head elist;
};

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

int task_work_cpu;
	struct callback_head task_work;
};

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,
};

#ifdef CONFIG_ACPI_APEI_GHES
/**
 * ghes_register_vendor_record_notifier - register a notifier for vendor
 * records that the kernel would otherwise ignore.
 * @nb: pointer to the notifier_block structure of the event handler.
 *
 * return 0 : SUCCESS, non-zero : FAIL
 */
int ghes_register_vendor_record_notifier(struct notifier_block *nb);

/**
 * ghes_unregister_vendor_record_notifier - unregister the previously
 * registered vendor record notifier.
 * @nb: pointer to the notifier_block structure of the vendor record handler.
 */
void ghes_unregister_vendor_record_notifier(struct notifier_block *nb);

struct list_head *ghes_get_devices(void);

void ghes_estatus_pool_region_free(unsigned long addr, u32 size);
#else
static inline struct list_head *ghes_get_devices(void) { return NULL; }

static inline void ghes_estatus_pool_region_free(unsigned long addr, u32 size) { return; }
#endif

int ghes_estatus_pool_init(unsigned int num_ghes);

static inline int acpi_hest_get_version(struct acpi_hest_generic_data *gdata)
{
	return gdata->revision >> 8;
}

static inline void *acpi_hest_get_payload(struct acpi_hest_generic_data *gdata)
{
	if (acpi_hest_get_version(gdata) >= 3)
		return (void *)(((struct acpi_hest_generic_data_v300 *)(gdata)) + 1);

return gdata + 1;
}

static inline int acpi_hest_get_error_length(struct acpi_hest_generic_data *gdata)
{
	return ((struct acpi_hest_generic_data *)(gdata))->error_data_length;
}

static inline int acpi_hest_get_size(struct acpi_hest_generic_data *gdata)
{
	if (acpi_hest_get_version(gdata) >= 3)
		return sizeof(struct acpi_hest_generic_data_v300);

return sizeof(struct acpi_hest_generic_data);
}

static inline int acpi_hest_get_record_size(struct acpi_hest_generic_data *gdata)
{
	return (acpi_hest_get_size(gdata) + acpi_hest_get_error_length(gdata));
}

static inline void *acpi_hest_get_next(struct acpi_hest_generic_data *gdata)
{
	return (void *)(gdata) + acpi_hest_get_record_size(gdata);
}

#define apei_estatus_for_each_section(estatus, section)			\
	for (section = (struct acpi_hest_generic_data *)(estatus + 1);	\
	     (void *)section - (void *)(estatus + 1) < estatus->data_length; \
	     section = acpi_hest_get_next(section))

#ifdef CONFIG_ACPI_APEI_SEA
int ghes_notify_sea(void);
#else
static inline int ghes_notify_sea(void) { return -ENOENT; }
#endif

struct notifier_block;
extern void ghes_register_report_chain(struct notifier_block *nb);
extern void ghes_unregister_report_chain(struct notifier_block *nb);
#endif /* GHES_H */