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 development cycle were:

   - more AMD northbridge support work, mostly in preparation for Fam17h
     CPUs (Yazen Ghannam, Borislav Petkov)

   - cleanups/refactorings and fixes (Borislav Petkov, Tony Luck,
     Yinghai Lu)"

* 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mce: Include the PPIN in MCE records when available
  x86/mce/AMD: Add system physical address translation for AMD Fam17h
  x86/amd_nb: Add SMN and Indirect Data Fabric access for AMD Fam17h
  x86/amd_nb: Add Fam17h Data Fabric as "Northbridge"
  x86/amd_nb: Make all exports EXPORT_SYMBOL_GPL
  x86/amd_nb: Make amd_northbridges internal to amd_nb.c
  x86/mce/AMD: Reset Threshold Limit after logging error
  x86/mce/AMD: Fix HWID_MCATYPE calculation by grouping arguments
  x86/MCE: Correct TSC timestamping of error records
  x86/RAS: Hide SMCA bank names
  x86/RAS: Rename smca_bank_names to smca_names
  x86/RAS: Simplify SMCA HWID descriptor struct
  x86/RAS: Simplify SMCA bank descriptor struct
  x86/MCE: Dump MCE to dmesg if no consumers
  x86/RAS: Add TSC timestamp to the injected MCE
  x86/MCE: Do not look at panic_on_oops in the severity grading

5 files changed, 24 insertions, 28 deletions

diff --git a/arch/x86/include/asm/amd_nb.h b/arch/x86/include/asm/amd_nb.h
index 5e828da2e18f..00c88a01301d 100644
--- a/arch/x86/include/asm/amd_nb.h
+++ b/arch/x86/include/asm/amd_nb.h
@@ -21,6 +21,10 @@ extern int amd_numa_init(void);
 extern int amd_get_subcaches(int);
 extern int amd_set_subcaches(int, unsigned long);
 
+extern int amd_smn_read(u16 node, u32 address, u32 *value);
+extern int amd_smn_write(u16 node, u32 address, u32 value);
+extern int amd_df_indirect_read(u16 node, u8 func, u16 reg, u8 instance_id, u32 *lo);
+
 struct amd_l3_cache {
 	unsigned indices;
 	u8	 subcaches[4];
@@ -55,6 +59,7 @@ struct threshold_bank {
 };
 
 struct amd_northbridge {
+	struct pci_dev *root;
 	struct pci_dev *misc;
 	struct pci_dev *link;
 	struct amd_l3_cache l3_cache;
@@ -66,7 +71,6 @@ struct amd_northbridge_info {
 	u64 flags;
 	struct amd_northbridge *nb;
 };
-extern struct amd_northbridge_info amd_northbridges;
 
 #define AMD_NB_GART			BIT(0)
 #define AMD_NB_L3_INDEX_DISABLE		BIT(1)
@@ -74,20 +78,9 @@ extern struct amd_northbridge_info amd_northbridges;
 
 #ifdef CONFIG_AMD_NB
 
-static inline u16 amd_nb_num(void)
-{
-	return amd_northbridges.num;
-}
-
-static inline bool amd_nb_has_feature(unsigned feature)
-{
-	return ((amd_northbridges.flags & feature) == feature);
-}
-
-static inline struct amd_northbridge *node_to_amd_nb(int node)
-{
-	return (node < amd_northbridges.num) ? &amd_northbridges.nb[node] : NULL;
-}
+u16 amd_nb_num(void);
+bool amd_nb_has_feature(unsigned int feature);
+struct amd_northbridge *node_to_amd_nb(int node);
 
 static inline u16 amd_pci_dev_to_node_id(struct pci_dev *pdev)
 {
diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index a39629206864..d625b651e526 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -193,6 +193,7 @@
 #define X86_FEATURE_HW_PSTATE	( 7*32+ 8) /* AMD HW-PState */
 #define X86_FEATURE_PROC_FEEDBACK ( 7*32+ 9) /* AMD ProcFeedbackInterface */
 
+#define X86_FEATURE_INTEL_PPIN	( 7*32+14) /* Intel Processor Inventory Number */
 #define X86_FEATURE_INTEL_PT	( 7*32+15) /* Intel Processor Trace */
 #define X86_FEATURE_AVX512_4VNNIW (7*32+16) /* AVX-512 Neural Network Instructions */
 #define X86_FEATURE_AVX512_4FMAPS (7*32+17) /* AVX-512 Multiply Accumulation Single precision */
diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index 9bd7ff5ffbcc..caab413c91ad 100644
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -252,8 +252,10 @@ static inline void cmci_recheck(void) {}
 
 #ifdef CONFIG_X86_MCE_AMD
 void mce_amd_feature_init(struct cpuinfo_x86 *c);
+int umc_normaddr_to_sysaddr(u64 norm_addr, u16 nid, u8 umc, u64 *sys_addr);
 #else
 static inline void mce_amd_feature_init(struct cpuinfo_x86 *c) { }
+static inline int umc_normaddr_to_sysaddr(u64 norm_addr, u16 nid, u8 umc, u64 *sys_addr) { return -EINVAL; };
 #endif
 
 int mce_available(struct cpuinfo_x86 *c);
@@ -356,28 +358,23 @@ enum smca_bank_types {
 	N_SMCA_BANK_TYPES
 };
 
-struct smca_bank_name {
-	const char *name;	/* Short name for sysfs */
-	const char *long_name;	/* Long name for pretty-printing */
-};
-
-extern struct smca_bank_name smca_bank_names[N_SMCA_BANK_TYPES];
-
-#define HWID_MCATYPE(hwid, mcatype) ((hwid << 16) | mcatype)
+#define HWID_MCATYPE(hwid, mcatype) (((hwid) << 16) | (mcatype))
 
-struct smca_hwid_mcatype {
+struct smca_hwid {
 	unsigned int bank_type;	/* Use with smca_bank_types for easy indexing. */
 	u32 hwid_mcatype;	/* (hwid,mcatype) tuple */
 	u32 xec_bitmap;		/* Bitmap of valid ExtErrorCodes; current max is 21. */
 };
 
-struct smca_bank_info {
-	struct smca_hwid_mcatype *type;
-	u32 type_instance;
+struct smca_bank {
+	struct smca_hwid *hwid;
+	/* Instance ID */
+	u32 id;
 };
 
-extern struct smca_bank_info smca_banks[MAX_NR_BANKS];
+extern struct smca_bank smca_banks[MAX_NR_BANKS];
 
+extern const char *smca_get_long_name(enum smca_bank_types t);
 #endif
 
 #endif /* _ASM_X86_MCE_H */
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 78f3760ca1f2..710273c617b8 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -37,6 +37,10 @@
 #define EFER_FFXSR		(1<<_EFER_FFXSR)
 
 /* Intel MSRs. Some also available on other CPUs */
+
+#define MSR_PPIN_CTL			0x0000004e
+#define MSR_PPIN			0x0000004f
+
 #define MSR_IA32_PERFCTR0		0x000000c1
 #define MSR_IA32_PERFCTR1		0x000000c2
 #define MSR_FSB_FREQ			0x000000cd
diff --git a/arch/x86/include/uapi/asm/mce.h b/arch/x86/include/uapi/asm/mce.h
index 69a6e07e3149..eb6247a7009b 100644
--- a/arch/x86/include/uapi/asm/mce.h
+++ b/arch/x86/include/uapi/asm/mce.h
@@ -28,6 +28,7 @@ struct mce {
 	__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 */
 };
 
 #define MCE_GET_RECORD_LEN   _IOR('M', 1, int)