1 files changed, 130 insertions, 0 deletions

diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
new file mode 100644
index 000000000000..1d6e17c2f23a
--- /dev/null
+++ b/arch/x86/include/asm/mce.h
@@ -0,0 +1,130 @@
+#ifndef _ASM_X86_MCE_H
+#define _ASM_X86_MCE_H
+
+#ifdef __x86_64__
+
+#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)   /* ip 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 ip;
+        __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
+
+#define K8_MCE_THRESHOLD_BASE      (MCE_EXTENDED_BANK + 1)      /* MCE_AMD */
+#define K8_MCE_THRESHOLD_BANK_0    (MCE_THRESHOLD_BASE + 0 * 9)
+#define K8_MCE_THRESHOLD_BANK_1    (MCE_THRESHOLD_BASE + 1 * 9)
+#define K8_MCE_THRESHOLD_BANK_2    (MCE_THRESHOLD_BASE + 2 * 9)
+#define K8_MCE_THRESHOLD_BANK_3    (MCE_THRESHOLD_BASE + 3 * 9)
+#define K8_MCE_THRESHOLD_BANK_4    (MCE_THRESHOLD_BASE + 4 * 9)
+#define K8_MCE_THRESHOLD_BANK_5    (MCE_THRESHOLD_BASE + 5 * 9)
+#define K8_MCE_THRESHOLD_DRAM_ECC  (MCE_THRESHOLD_BANK_4 + 0)
+
+#endif /* __x86_64__ */
+
+#ifdef __KERNEL__
+
+#ifdef CONFIG_X86_32
+extern int mce_disabled;
+#else /* CONFIG_X86_32 */
+
+#include <asm/atomic.h>
+
+void mce_log(struct mce *m);
+DECLARE_PER_CPU(struct sys_device, device_mce);
+extern void (*threshold_cpu_callback)(unsigned long action, unsigned int cpu);
+
+#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
+
+#ifdef CONFIG_X86_MCE_AMD
+void mce_amd_feature_init(struct cpuinfo_x86 *c);
+#else
+static inline void mce_amd_feature_init(struct cpuinfo_x86 *c) { }
+#endif
+
+void mce_log_therm_throt_event(unsigned int cpu, __u64 status);
+
+extern atomic_t mce_entry;
+
+extern void do_machine_check(struct pt_regs *, long);
+extern int mce_notify_user(void);
+
+#endif /* !CONFIG_X86_32 */
+
+
+
+#ifdef CONFIG_X86_MCE
+extern void mcheck_init(struct cpuinfo_x86 *c);
+#else
+#define mcheck_init(c) do { } while (0)
+#endif
+extern void stop_mce(void);
+extern void restart_mce(void);
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_X86_MCE_H */