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139 lines
3.9 KiB
139 lines
3.9 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* apei-internal.h - ACPI Platform Error Interface internal |
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* definitions. |
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*/ |
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#ifndef APEI_INTERNAL_H |
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#define APEI_INTERNAL_H |
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#include <linux/cper.h> |
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#include <linux/acpi.h> |
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struct apei_exec_context; |
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typedef int (*apei_exec_ins_func_t)(struct apei_exec_context *ctx, |
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struct acpi_whea_header *entry); |
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#define APEI_EXEC_INS_ACCESS_REGISTER 0x0001 |
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struct apei_exec_ins_type { |
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u32 flags; |
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apei_exec_ins_func_t run; |
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}; |
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struct apei_exec_context { |
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u32 ip; |
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u64 value; |
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u64 var1; |
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u64 var2; |
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u64 src_base; |
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u64 dst_base; |
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struct apei_exec_ins_type *ins_table; |
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u32 instructions; |
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struct acpi_whea_header *action_table; |
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u32 entries; |
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}; |
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void apei_exec_ctx_init(struct apei_exec_context *ctx, |
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struct apei_exec_ins_type *ins_table, |
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u32 instructions, |
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struct acpi_whea_header *action_table, |
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u32 entries); |
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static inline void apei_exec_ctx_set_input(struct apei_exec_context *ctx, |
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u64 input) |
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{ |
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ctx->value = input; |
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} |
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static inline u64 apei_exec_ctx_get_output(struct apei_exec_context *ctx) |
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{ |
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return ctx->value; |
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} |
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int __apei_exec_run(struct apei_exec_context *ctx, u8 action, bool optional); |
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static inline int apei_exec_run(struct apei_exec_context *ctx, u8 action) |
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{ |
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return __apei_exec_run(ctx, action, 0); |
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} |
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/* It is optional whether the firmware provides the action */ |
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static inline int apei_exec_run_optional(struct apei_exec_context *ctx, u8 action) |
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{ |
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return __apei_exec_run(ctx, action, 1); |
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} |
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/* Common instruction implementation */ |
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/* IP has been set in instruction function */ |
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#define APEI_EXEC_SET_IP 1 |
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int apei_map_generic_address(struct acpi_generic_address *reg); |
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static inline void apei_unmap_generic_address(struct acpi_generic_address *reg) |
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{ |
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acpi_os_unmap_generic_address(reg); |
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} |
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int apei_read(u64 *val, struct acpi_generic_address *reg); |
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int apei_write(u64 val, struct acpi_generic_address *reg); |
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int __apei_exec_read_register(struct acpi_whea_header *entry, u64 *val); |
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int __apei_exec_write_register(struct acpi_whea_header *entry, u64 val); |
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int apei_exec_read_register(struct apei_exec_context *ctx, |
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struct acpi_whea_header *entry); |
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int apei_exec_read_register_value(struct apei_exec_context *ctx, |
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struct acpi_whea_header *entry); |
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int apei_exec_write_register(struct apei_exec_context *ctx, |
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struct acpi_whea_header *entry); |
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int apei_exec_write_register_value(struct apei_exec_context *ctx, |
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struct acpi_whea_header *entry); |
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int apei_exec_noop(struct apei_exec_context *ctx, |
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struct acpi_whea_header *entry); |
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int apei_exec_pre_map_gars(struct apei_exec_context *ctx); |
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int apei_exec_post_unmap_gars(struct apei_exec_context *ctx); |
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struct apei_resources { |
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struct list_head iomem; |
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struct list_head ioport; |
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}; |
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static inline void apei_resources_init(struct apei_resources *resources) |
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{ |
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INIT_LIST_HEAD(&resources->iomem); |
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INIT_LIST_HEAD(&resources->ioport); |
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} |
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void apei_resources_fini(struct apei_resources *resources); |
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int apei_resources_add(struct apei_resources *resources, |
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unsigned long start, unsigned long size, |
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bool iomem); |
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int apei_resources_sub(struct apei_resources *resources1, |
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struct apei_resources *resources2); |
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int apei_resources_request(struct apei_resources *resources, |
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const char *desc); |
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void apei_resources_release(struct apei_resources *resources); |
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int apei_exec_collect_resources(struct apei_exec_context *ctx, |
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struct apei_resources *resources); |
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struct dentry; |
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struct dentry *apei_get_debugfs_dir(void); |
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static inline u32 cper_estatus_len(struct acpi_hest_generic_status *estatus) |
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{ |
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if (estatus->raw_data_length) |
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return estatus->raw_data_offset + \ |
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estatus->raw_data_length; |
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else |
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return sizeof(*estatus) + estatus->data_length; |
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} |
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void cper_estatus_print(const char *pfx, |
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const struct acpi_hest_generic_status *estatus); |
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int cper_estatus_check_header(const struct acpi_hest_generic_status *estatus); |
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int cper_estatus_check(const struct acpi_hest_generic_status *estatus); |
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int apei_osc_setup(void); |
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#endif
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