Merge branch 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 RAS updates from Ingo Molnar:
 "The main changes in this cycle were:

   - AMD MCE support/decoding improvements (Yazen Ghannam)

   - general MCE header cleanups and reorganization (Borislav Petkov)"

* 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Revert "x86/mce/AMD: Collect error info even if valid bits are not set"
  x86/MCE: Cleanup and complete struct mce fields definitions
  x86/mce/AMD: Carve out SMCA get_block_address() code
  x86/mce/AMD: Get address from already initialized block
  x86/mce/AMD, EDAC/mce_amd: Enumerate Reserved SMCA bank type
  x86/mce/AMD: Pass the bank number to smca_get_bank_type()
  x86/mce/AMD: Collect error info even if valid bits are not set
  x86/mce: Issue the 'mcelog --ascii' message only on !AMD
  x86/mce: Convert 'struct mca_config' bools to a bitfield
  x86/mce: Put private structures and definitions into the internal header

2 files changed, 29 insertions, 76 deletions

diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index 96ea4b5ba658..8c7b3e5a2d01 100644
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -138,58 +138,6 @@ struct mce_log_buffer {
 	struct mce entry[MCE_LOG_LEN];
 };
 
-struct mca_config {
-	bool dont_log_ce;
-	bool cmci_disabled;
-	bool lmce_disabled;
-	bool ignore_ce;
-	bool disabled;
-	bool ser;
-	bool recovery;
-	bool bios_cmci_threshold;
-	u8 banks;
-	s8 bootlog;
-	int tolerant;
-	int monarch_timeout;
-	int panic_timeout;
-	u32 rip_msr;
-};
-
-struct mce_vendor_flags {
-	/*
-	 * Indicates that overflow conditions are not fatal, when set.
-	 */
-	__u64 overflow_recov	: 1,
-
-	/*
-	 * (AMD) SUCCOR stands for S/W UnCorrectable error COntainment and
-	 * Recovery. It indicates support for data poisoning in HW and deferred
-	 * error interrupts.
-	 */
-	      succor		: 1,
-
-	/*
-	 * (AMD) SMCA: This bit indicates support for Scalable MCA which expands
-	 * the register space for each MCA bank and also increases number of
-	 * banks. Also, to accommodate the new banks and registers, the MCA
-	 * register space is moved to a new MSR range.
-	 */
-	      smca		: 1,
-
-	      __reserved_0	: 61;
-};
-
-struct mca_msr_regs {
-	u32 (*ctl)	(int bank);
-	u32 (*status)	(int bank);
-	u32 (*addr)	(int bank);
-	u32 (*misc)	(int bank);
-};
-
-extern struct mce_vendor_flags mce_flags;
-
-extern struct mca_msr_regs msr_ops;
-
 enum mce_notifier_prios {
 	MCE_PRIO_FIRST		= INT_MAX,
 	MCE_PRIO_SRAO		= INT_MAX - 1,
@@ -346,6 +294,7 @@ enum smca_bank_types {
 	SMCA_IF,	/* Instruction Fetch */
 	SMCA_L2_CACHE,	/* L2 Cache */
 	SMCA_DE,	/* Decoder Unit */
+	SMCA_RESERVED,	/* Reserved */
 	SMCA_EX,	/* Execution Unit */
 	SMCA_FP,	/* Floating Point */
 	SMCA_L3_CACHE,	/* L3 Cache */
diff --git a/arch/x86/include/uapi/asm/mce.h b/arch/x86/include/uapi/asm/mce.h
index 435db58a7bad..955c2a2e1cf9 100644
--- a/arch/x86/include/uapi/asm/mce.h
+++ b/arch/x86/include/uapi/asm/mce.h
@@ -5,32 +5,36 @@
 #include <linux/types.h>
 #include <linux/ioctl.h>
 
-/* Fields are zero when not available */
+/*
+ * Fields are zero when not available. Also, this struct is shared with
+ * userspace mcelog and thus must keep existing fields at current offsets.
+ * Only add new fields to the end of the structure
+ */
 struct mce {
-	__u64 status;
-	__u64 misc;
-	__u64 addr;
-	__u64 mcgstatus;
-	__u64 ip;
-	__u64 tsc;	/* cpu time stamp counter */
-	__u64 time;	/* wall time_t when error was detected */
-	__u8  cpuvendor;	/* cpu vendor as encoded in system.h */
-	__u8  inject_flags;	/* software inject flags */
-	__u8  severity;
+	__u64 status;		/* Bank's MCi_STATUS MSR */
+	__u64 misc;		/* Bank's MCi_MISC MSR */
+	__u64 addr;		/* Bank's MCi_ADDR MSR */
+	__u64 mcgstatus;	/* Machine Check Global Status MSR */
+	__u64 ip;		/* Instruction Pointer when the error happened */
+	__u64 tsc;		/* CPU time stamp counter */
+	__u64 time;		/* Wall time_t when error was detected */
+	__u8  cpuvendor;	/* Kernel's X86_VENDOR enum */
+	__u8  inject_flags;	/* Software inject flags */
+	__u8  severity;		/* Error severity */
 	__u8  pad;
-	__u32 cpuid;	/* CPUID 1 EAX */
-	__u8  cs;		/* code segment */
-	__u8  bank;	/* machine check bank */
-	__u8  cpu;	/* cpu number; obsolete; use extcpu now */
-	__u8  finished;   /* entry is valid */
-	__u32 extcpu;	/* linux cpu number that detected the error */
-	__u32 socketid;	/* CPU socket ID */
-	__u32 apicid;	/* CPU initial apic ID */
-	__u64 mcgcap;	/* MCGCAP MSR: machine check capabilities of CPU */
-	__u64 synd;	/* MCA_SYND MSR: only valid on SMCA systems */
-	__u64 ipid;	/* MCA_IPID MSR: only valid on SMCA systems */
-	__u64 ppin;	/* Protected Processor Inventory Number */
-	__u32 microcode;/* Microcode revision */
+	__u32 cpuid;		/* CPUID 1 EAX */
+	__u8  cs;		/* Code segment */
+	__u8  bank;		/* Machine check bank reporting the error */
+	__u8  cpu;		/* CPU number; obsoleted by extcpu */
+	__u8  finished;		/* Entry is valid */
+	__u32 extcpu;		/* Linux CPU number that detected the error */
+	__u32 socketid;		/* CPU socket ID */
+	__u32 apicid;		/* CPU initial APIC ID */
+	__u64 mcgcap;		/* MCGCAP MSR: machine check capabilities of CPU */
+	__u64 synd;		/* MCA_SYND MSR: only valid on SMCA systems */
+	__u64 ipid;		/* MCA_IPID MSR: only valid on SMCA systems */
+	__u64 ppin;		/* Protected Processor Inventory Number */
+	__u32 microcode;	/* Microcode revision */
 };
 
 #define MCE_GET_RECORD_LEN   _IOR('M', 1, int)