1 files changed, 80 insertions, 0 deletions

diff --git a/include/asm-x86_64/mce.h b/include/asm-x86_64/mce.h
new file mode 100644
index 000000000000..869249db6795
--- /dev/null
+++ b/include/asm-x86_64/mce.h
@@ -0,0 +1,80 @@
+#ifndef _ASM_MCE_H
+#define _ASM_MCE_H 1
+
+#include <asm/ioctls.h>
+#include <asm/types.h>
+
+/* 
+ * Machine Check support for x86
+ */
+
+#define MCG_CTL_P        (1UL<<8)   /* MCG_CAP register available */
+
+#define MCG_STATUS_RIPV  (1UL<<0)   /* restart ip valid */
+#define MCG_STATUS_EIPV  (1UL<<1)   /* eip points to correct instruction */
+#define MCG_STATUS_MCIP  (1UL<<2)   /* machine check in progress */
+
+#define MCI_STATUS_VAL   (1UL<<63)  /* valid error */
+#define MCI_STATUS_OVER  (1UL<<62)  /* previous errors lost */
+#define MCI_STATUS_UC    (1UL<<61)  /* uncorrected error */
+#define MCI_STATUS_EN    (1UL<<60)  /* error enabled */
+#define MCI_STATUS_MISCV (1UL<<59)  /* misc error reg. valid */
+#define MCI_STATUS_ADDRV (1UL<<58)  /* addr reg. valid */
+#define MCI_STATUS_PCC   (1UL<<57)  /* processor context corrupt */
+
+/* Fields are zero when not available */
+struct mce {
+        __u64 status;
+        __u64 misc;
+        __u64 addr;
+        __u64 mcgstatus;
+        __u64 rip;      
+        __u64 tsc;      /* cpu time stamp counter */
+        __u64 res1;     /* for future extension */      
+        __u64 res2;     /* dito. */
+        __u8  cs;               /* code segment */
+        __u8  bank;     /* machine check bank */
+        __u8  cpu;      /* cpu that raised the error */
+        __u8  finished;   /* entry is valid */
+        __u32 pad;   
+};
+
+/* 
+ * This structure contains all data related to the MCE log.
+ * Also carries a signature to make it easier to find from external debugging tools.
+ * Each entry is only valid when its finished flag is set.
+ */
+
+#define MCE_LOG_LEN 32
+
+struct mce_log { 
+        char signature[12]; /* "MACHINECHECK" */ 
+        unsigned len;       /* = MCE_LOG_LEN */ 
+        unsigned next;
+        unsigned flags;
+        unsigned pad0; 
+        struct mce entry[MCE_LOG_LEN];
+};
+
+#define MCE_OVERFLOW 0          /* bit 0 in flags means overflow */
+
+#define MCE_LOG_SIGNATURE       "MACHINECHECK"
+
+#define MCE_GET_RECORD_LEN   _IOR('M', 1, int)
+#define MCE_GET_LOG_LEN      _IOR('M', 2, int)
+#define MCE_GETCLEAR_FLAGS   _IOR('M', 3, int)
+
+/* Software defined banks */
+#define MCE_EXTENDED_BANK       128
+#define MCE_THERMAL_BANK        MCE_EXTENDED_BANK + 0
+
+void mce_log(struct mce *m);
+#ifdef CONFIG_X86_MCE_INTEL
+void mce_intel_feature_init(struct cpuinfo_x86 *c);
+#else
+static inline void mce_intel_feature_init(struct cpuinfo_x86 *c)
+{
+}
+#endif
+
+#endif