linux/drivers/acpi/apei/apei-internal.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * apei-internal.h - ACPI Platform Error Interface internal
 * definitions.
 */

#ifndef APEI_INTERNAL_H
#define APEI_INTERNAL_H

#include <linux/acpi.h>

struct apei_exec_context;

apei_exec_ins_func_t;

#define APEI_EXEC_INS_ACCESS_REGISTER …

struct apei_exec_ins_type { … };

struct apei_exec_context { … };

void apei_exec_ctx_init(struct apei_exec_context *ctx,
			struct apei_exec_ins_type *ins_table,
			u32 instructions,
			struct acpi_whea_header *action_table,
			u32 entries);

static inline void apei_exec_ctx_set_input(struct apei_exec_context *ctx,
					   u64 input)
{ … }

static inline u64 apei_exec_ctx_get_output(struct apei_exec_context *ctx)
{ … }

int __apei_exec_run(struct apei_exec_context *ctx, u8 action, bool optional);

static inline int apei_exec_run(struct apei_exec_context *ctx, u8 action)
{ … }

/* It is optional whether the firmware provides the action */
static inline int apei_exec_run_optional(struct apei_exec_context *ctx, u8 action)
{ … }

/* Common instruction implementation */

/* IP has been set in instruction function */
#define APEI_EXEC_SET_IP …

int apei_map_generic_address(struct acpi_generic_address *reg);

static inline void apei_unmap_generic_address(struct acpi_generic_address *reg)
{ … }

int apei_read(u64 *val, struct acpi_generic_address *reg);
int apei_write(u64 val, struct acpi_generic_address *reg);

int __apei_exec_read_register(struct acpi_whea_header *entry, u64 *val);
int __apei_exec_write_register(struct acpi_whea_header *entry, u64 val);
int apei_exec_read_register(struct apei_exec_context *ctx,
			    struct acpi_whea_header *entry);
int apei_exec_read_register_value(struct apei_exec_context *ctx,
				  struct acpi_whea_header *entry);
int apei_exec_write_register(struct apei_exec_context *ctx,
			     struct acpi_whea_header *entry);
int apei_exec_write_register_value(struct apei_exec_context *ctx,
				   struct acpi_whea_header *entry);
int apei_exec_noop(struct apei_exec_context *ctx,
		   struct acpi_whea_header *entry);
int apei_exec_pre_map_gars(struct apei_exec_context *ctx);
int apei_exec_post_unmap_gars(struct apei_exec_context *ctx);

struct apei_resources { … };

static inline void apei_resources_init(struct apei_resources *resources)
{ … }

void apei_resources_fini(struct apei_resources *resources);
int apei_resources_add(struct apei_resources *resources,
		       unsigned long start, unsigned long size,
		       bool iomem);
int apei_resources_sub(struct apei_resources *resources1,
		       struct apei_resources *resources2);
int apei_resources_request(struct apei_resources *resources,
			   const char *desc);
void apei_resources_release(struct apei_resources *resources);
int apei_exec_collect_resources(struct apei_exec_context *ctx,
				struct apei_resources *resources);

struct dentry;
struct dentry *apei_get_debugfs_dir(void);

static inline u32 cper_estatus_len(struct acpi_hest_generic_status *estatus)
{ … }

int apei_osc_setup(void);

int einj_get_available_error_type(u32 *type);
int einj_error_inject(u32 type, u32 flags, u64 param1, u64 param2, u64 param3,
		      u64 param4);
int einj_cxl_rch_error_inject(u32 type, u32 flags, u64 param1, u64 param2,
			      u64 param3, u64 param4);
bool einj_is_cxl_error_type(u64 type);
int einj_validate_error_type(u64 type);

#ifndef ACPI_EINJ_CXL_CACHE_CORRECTABLE
#define ACPI_EINJ_CXL_CACHE_CORRECTABLE …
#define ACPI_EINJ_CXL_CACHE_UNCORRECTABLE …
#define ACPI_EINJ_CXL_CACHE_FATAL …
#define ACPI_EINJ_CXL_MEM_CORRECTABLE …
#define ACPI_EINJ_CXL_MEM_UNCORRECTABLE …
#define ACPI_EINJ_CXL_MEM_FATAL …
#endif

#endif