1 files changed, 76 insertions, 15 deletions

diff --git a/include/acpi/ghes.h b/include/acpi/ghes.h
index 720446cb243e..ebd21b05fe6e 100644
--- a/include/acpi/ghes.h
+++ b/include/acpi/ghes.h
@@ -1,3 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef GHES_H
+#define GHES_H
+
 #include <acpi/apei.h>
 #include <acpi/hed.h>
 
@@ -9,19 +13,22 @@
  * 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;
+	union {
+		struct acpi_hest_generic *generic;
+		struct acpi_hest_generic_v2 *generic_v2;
+	};
 	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 device *dev;
+	struct list_head elist;
 };
 
 struct ghes_estatus_node {
@@ -45,28 +52,82 @@ enum {
 	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);
+#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);
 
-int ghes_edac_register(struct ghes *ghes, struct device *dev);
+/**
+ * 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);
 
-void ghes_edac_unregister(struct ghes *ghes);
+struct list_head *ghes_get_devices(void);
 
+void ghes_estatus_pool_region_free(unsigned long addr, u32 size);
 #else
-static inline void ghes_edac_report_mem_error(struct ghes *ghes, int sev,
-				       struct cper_sec_mem_err *mem_err)
+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 int ghes_edac_register(struct ghes *ghes, struct device *dev)
+static inline void *acpi_hest_get_payload(struct acpi_hest_generic_data *gdata)
 {
-	return 0;
+	if (acpi_hest_get_version(gdata) >= 3)
+		return (void *)(((struct acpi_hest_generic_data_v300 *)(gdata)) + 1);
+
+	return gdata + 1;
 }
 
-static inline void ghes_edac_unregister(struct ghes *ghes)
+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 */