1 files changed, 32 insertions, 0 deletions

diff --git a/include/linux/cper.h b/include/linux/cper.h
index 2fc0ec3d89cc..76abba4b238e 100644
--- a/include/linux/cper.h
+++ b/include/linux/cper.h
@@ -22,6 +22,7 @@
 #define LINUX_CPER_H
 
 #include <linux/uuid.h>
+#include <linux/trace_seq.h>
 
 /* CPER record signature and the size */
 #define CPER_SIG_RECORD                         "CPER"
@@ -36,6 +37,13 @@
 #define CPER_RECORD_REV                         0x0100
 
 /*
+ * CPER record length contains the CPER fields which are relevant for further
+ * handling of a memory error in userspace (we don't carry all the fields
+ * defined in the UEFI spec because some of them don't make any sense.)
+ * Currently, a length of 256 should be more than enough.
+ */
+#define CPER_REC_LEN                                    256
+/*
  * Severity difinition for error_severity in struct cper_record_header
  * and section_severity in struct cper_section_descriptor
  */
@@ -356,6 +364,24 @@ struct cper_sec_mem_err {
         __u16   mem_dev_handle;         /* module handle in UEFI 2.4 */
 };
 
+struct cper_mem_err_compact {
+        __u64   validation_bits;
+        __u16   node;
+        __u16   card;
+        __u16   module;
+        __u16   bank;
+        __u16   device;
+        __u16   row;
+        __u16   column;
+        __u16   bit_pos;
+        __u64   requestor_id;
+        __u64   responder_id;
+        __u64   target_id;
+        __u16   rank;
+        __u16   mem_array_handle;
+        __u16   mem_dev_handle;
+};
+
 struct cper_sec_pcie {
         __u64           validation_bits;
         __u32           port_type;
@@ -395,7 +421,13 @@ struct cper_sec_pcie {
 #pragma pack()
 
 u64 cper_next_record_id(void);
+const char *cper_severity_str(unsigned int);
+const char *cper_mem_err_type_str(unsigned int);
 void cper_print_bits(const char *prefix, unsigned int bits,
                      const char * const strs[], unsigned int strs_size);
+void cper_mem_err_pack(const struct cper_sec_mem_err *,
+                       struct cper_mem_err_compact *);
+const char *cper_mem_err_unpack(struct trace_seq *,
+                                struct cper_mem_err_compact *);
 
 #endif