aboutsummaryrefslogtreecommitdiff
path: root/arch/x86/include/asm/mce.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/include/asm/mce.h')
-rw-r--r--arch/x86/include/asm/mce.h84
1 files changed, 84 insertions, 0 deletions
diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index ecdfee60ee4..f4076af1f4e 100644
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -3,6 +3,90 @@
#include <uapi/asm/mce.h>
+/*
+ * Machine Check support for x86
+ */
+
+/* MCG_CAP register defines */
+#define MCG_BANKCNT_MASK 0xff /* Number of Banks */
+#define MCG_CTL_P (1ULL<<8) /* MCG_CTL register available */
+#define MCG_EXT_P (1ULL<<9) /* Extended registers available */
+#define MCG_CMCI_P (1ULL<<10) /* CMCI supported */
+#define MCG_EXT_CNT_MASK 0xff0000 /* Number of Extended registers */
+#define MCG_EXT_CNT_SHIFT 16
+#define MCG_EXT_CNT(c) (((c) & MCG_EXT_CNT_MASK) >> MCG_EXT_CNT_SHIFT)
+#define MCG_SER_P (1ULL<<24) /* MCA recovery/new status bits */
+
+/* MCG_STATUS register defines */
+#define MCG_STATUS_RIPV (1ULL<<0) /* restart ip valid */
+#define MCG_STATUS_EIPV (1ULL<<1) /* ip points to correct instruction */
+#define MCG_STATUS_MCIP (1ULL<<2) /* machine check in progress */
+
+/* MCi_STATUS register defines */
+#define MCI_STATUS_VAL (1ULL<<63) /* valid error */
+#define MCI_STATUS_OVER (1ULL<<62) /* previous errors lost */
+#define MCI_STATUS_UC (1ULL<<61) /* uncorrected error */
+#define MCI_STATUS_EN (1ULL<<60) /* error enabled */
+#define MCI_STATUS_MISCV (1ULL<<59) /* misc error reg. valid */
+#define MCI_STATUS_ADDRV (1ULL<<58) /* addr reg. valid */
+#define MCI_STATUS_PCC (1ULL<<57) /* processor context corrupt */
+#define MCI_STATUS_S (1ULL<<56) /* Signaled machine check */
+#define MCI_STATUS_AR (1ULL<<55) /* Action required */
+#define MCACOD 0xffff /* MCA Error Code */
+
+/* Architecturally defined codes from SDM Vol. 3B Chapter 15 */
+#define MCACOD_SCRUB 0x00C0 /* 0xC0-0xCF Memory Scrubbing */
+#define MCACOD_SCRUBMSK 0xfff0
+#define MCACOD_L3WB 0x017A /* L3 Explicit Writeback */
+#define MCACOD_DATA 0x0134 /* Data Load */
+#define MCACOD_INSTR 0x0150 /* Instruction Fetch */
+
+/* MCi_MISC register defines */
+#define MCI_MISC_ADDR_LSB(m) ((m) & 0x3f)
+#define MCI_MISC_ADDR_MODE(m) (((m) >> 6) & 7)
+#define MCI_MISC_ADDR_SEGOFF 0 /* segment offset */
+#define MCI_MISC_ADDR_LINEAR 1 /* linear address */
+#define MCI_MISC_ADDR_PHYS 2 /* physical address */
+#define MCI_MISC_ADDR_MEM 3 /* memory address */
+#define MCI_MISC_ADDR_GENERIC 7 /* generic */
+
+/* CTL2 register defines */
+#define MCI_CTL2_CMCI_EN (1ULL << 30)
+#define MCI_CTL2_CMCI_THRESHOLD_MASK 0x7fffULL
+
+#define MCJ_CTX_MASK 3
+#define MCJ_CTX(flags) ((flags) & MCJ_CTX_MASK)
+#define MCJ_CTX_RANDOM 0 /* inject context: random */
+#define MCJ_CTX_PROCESS 0x1 /* inject context: process */
+#define MCJ_CTX_IRQ 0x2 /* inject context: IRQ */
+#define MCJ_NMI_BROADCAST 0x4 /* do NMI broadcasting */
+#define MCJ_EXCEPTION 0x8 /* raise as exception */
+#define MCJ_IRQ_BRAODCAST 0x10 /* do IRQ broadcasting */
+
+#define MCE_OVERFLOW 0 /* bit 0 in flags means overflow */
+
+/* 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)
+
+#define MCE_LOG_LEN 32
+#define MCE_LOG_SIGNATURE "MACHINECHECK"
+
+/*
+ * 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.
+ */
+struct mce_log {
+ char signature[12]; /* "MACHINECHECK" */
+ unsigned len; /* = MCE_LOG_LEN */
+ unsigned next;
+ unsigned flags;
+ unsigned recordlen; /* length of struct mce */
+ struct mce entry[MCE_LOG_LEN];
+};
struct mca_config {
bool dont_log_ce;