1/* 2 * apei-internal.h - ACPI Platform Error Interface internal 3 * definations. 4 */ 5 6#ifndef APEI_INTERNAL_H 7#define APEI_INTERNAL_H 8 9#include <linux/cper.h> 10 11struct apei_exec_context; 12 13typedef int (*apei_exec_ins_func_t)(struct apei_exec_context *ctx, 14 struct acpi_whea_header *entry); 15 16#define APEI_EXEC_INS_ACCESS_REGISTER 0x0001 17 18struct apei_exec_ins_type { 19 u32 flags; 20 apei_exec_ins_func_t run; 21}; 22 23struct apei_exec_context { 24 u32 ip; 25 u64 value; 26 u64 var1; 27 u64 var2; 28 u64 src_base; 29 u64 dst_base; 30 struct apei_exec_ins_type *ins_table; 31 u32 instructions; 32 struct acpi_whea_header *action_table; 33 u32 entries; 34}; 35 36void apei_exec_ctx_init(struct apei_exec_context *ctx, 37 struct apei_exec_ins_type *ins_table, 38 u32 instructions, 39 struct acpi_whea_header *action_table, 40 u32 entries); 41 42static inline void apei_exec_ctx_set_input(struct apei_exec_context *ctx, 43 u64 input) 44{ 45 ctx->value = input; 46} 47 48static inline u64 apei_exec_ctx_get_output(struct apei_exec_context *ctx) 49{ 50 return ctx->value; 51} 52 53int apei_exec_run(struct apei_exec_context *ctx, u8 action); 54 55/* Common instruction implementation */ 56 57/* IP has been set in instruction function */ 58#define APEI_EXEC_SET_IP 1 59 60int __apei_exec_read_register(struct acpi_whea_header *entry, u64 *val); 61int __apei_exec_write_register(struct acpi_whea_header *entry, u64 val); 62int apei_exec_read_register(struct apei_exec_context *ctx, 63 struct acpi_whea_header *entry); 64int apei_exec_read_register_value(struct apei_exec_context *ctx, 65 struct acpi_whea_header *entry); 66int apei_exec_write_register(struct apei_exec_context *ctx, 67 struct acpi_whea_header *entry); 68int apei_exec_write_register_value(struct apei_exec_context *ctx, 69 struct acpi_whea_header *entry); 70int apei_exec_noop(struct apei_exec_context *ctx, 71 struct acpi_whea_header *entry); 72int apei_exec_pre_map_gars(struct apei_exec_context *ctx); 73int apei_exec_post_unmap_gars(struct apei_exec_context *ctx); 74 75struct apei_resources { 76 struct list_head iomem; 77 struct list_head ioport; 78}; 79 80static inline void apei_resources_init(struct apei_resources *resources) 81{ 82 INIT_LIST_HEAD(&resources->iomem); 83 INIT_LIST_HEAD(&resources->ioport); 84} 85 86void apei_resources_fini(struct apei_resources *resources); 87int apei_resources_sub(struct apei_resources *resources1, 88 struct apei_resources *resources2); 89int apei_resources_request(struct apei_resources *resources, 90 const char *desc); 91void apei_resources_release(struct apei_resources *resources); 92int apei_exec_collect_resources(struct apei_exec_context *ctx, 93 struct apei_resources *resources); 94 95struct dentry; 96struct dentry *apei_get_debugfs_dir(void); 97 98#define apei_estatus_for_each_section(estatus, section) \ 99 for (section = (struct acpi_hest_generic_data *)(estatus + 1); \ 100 (void *)section - (void *)estatus < estatus->data_length; \ 101 section = (void *)(section+1) + section->error_data_length) 102 103static inline u32 apei_estatus_len(struct acpi_hest_generic_status *estatus) 104{ 105 if (estatus->raw_data_length) 106 return estatus->raw_data_offset + \ 107 estatus->raw_data_length; 108 else 109 return sizeof(*estatus) + estatus->data_length; 110} 111 112int apei_estatus_check_header(const struct acpi_hest_generic_status *estatus); 113int apei_estatus_check(const struct acpi_hest_generic_status *estatus); 114#endif 115