x86/ras changes for v3.10

index f4076af..fa5f71e 100644
@@ -146,13 +146,13 @@ DECLARE_PER_CPU(struct device *, mce_device);
 void mce_intel_feature_init(struct cpuinfo_x86 *c);
 void cmci_clear(void);
 void cmci_reenable(void);
-void cmci_rediscover(int dying);
+void cmci_rediscover(void);
 void cmci_recheck(void);
 #else
 static inline void mce_intel_feature_init(struct cpuinfo_x86 *c) { }
 static inline void cmci_clear(void) {}
 static inline void cmci_reenable(void) {}
-static inline void cmci_rediscover(int dying) {}
+static inline void cmci_rediscover(void) {}
 static inline void cmci_recheck(void) {}
 #endif
 

index aadf335..f1d0a14 100644
@@ -20,12 +20,14 @@ const struct pci_device_id amd_nb_misc_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_10H_NB_MISC) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_15H_NB_F3) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_15H_M10H_F3) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_16H_NB_F3) },
 	{}
 };
 EXPORT_SYMBOL(amd_nb_misc_ids);
 
 static struct pci_device_id amd_nb_link_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_15H_NB_F4) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_16H_NB_F4) },
 	{}
 };
 

@@ -81,7 +83,6 @@ int amd_cache_northbridges(void)
 			next_northbridge(link, amd_nb_link_ids);
         }
 
-	/* some CPU families (e.g. family 0x11) do not support GART */
 	if (boot_cpu_data.x86 == 0xf || boot_cpu_data.x86 == 0x10 ||
 	    boot_cpu_data.x86 == 0x15)
 		amd_northbridges.flags |= AMD_NB_GART;

index 7bc1263..9239504 100644
@@ -2358,7 +2358,7 @@ mce_cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu)
 
 	if (action == CPU_POST_DEAD) {
 		/* intentionally ignoring frozen here */
-		cmci_rediscover(cpu);
+		cmci_rediscover();
 	}
 
 	return NOTIFY_OK;

index 1ac581f..9cb5276 100644
@@ -33,7 +33,6 @@
 #include <asm/mce.h>
 #include <asm/msr.h>
 
-#define NR_BANKS          6
 #define NR_BLOCKS         9
 #define THRESHOLD_MAX     0xFFF
 #define INT_TYPE_APIC     0x00020000

@@ -57,12 +56,7 @@ static const char * const th_names[] = {
 	"execution_unit",
 };
 
-static DEFINE_PER_CPU(struct threshold_bank * [NR_BANKS], threshold_banks);
-
-static unsigned char shared_bank[NR_BANKS] = {
-	0, 0, 0, 0, 1
-};
-
+static DEFINE_PER_CPU(struct threshold_bank **, threshold_banks);
 static DEFINE_PER_CPU(unsigned char, bank_map);	/* see which banks are on */
 
 static void amd_threshold_interrupt(void);

@@ -79,6 +73,12 @@ struct thresh_restart {
 	u16			old_limit;
 };
 
+static inline bool is_shared_bank(int bank)
+{
+	/* Bank 4 is for northbridge reporting and is thus shared */
+	return (bank == 4);
+}
+
 static const char * const bank4_names(struct threshold_block *b)
 {
 	switch (b->address) {

@@ -214,7 +214,7 @@ void mce_amd_feature_init(struct cpuinfo_x86 *c)
 	unsigned int bank, block;
 	int offset = -1;
 
-	for (bank = 0; bank < NR_BANKS; ++bank) {
+	for (bank = 0; bank < mca_cfg.banks; ++bank) {
 		for (block = 0; block < NR_BLOCKS; ++block) {
 			if (block == 0)
 				address = MSR_IA32_MC0_MISC + bank * 4;

@@ -276,7 +276,7 @@ static void amd_threshold_interrupt(void)
 	mce_setup(&m);
 
 	/* assume first bank caused it */
-	for (bank = 0; bank < NR_BANKS; ++bank) {
+	for (bank = 0; bank < mca_cfg.banks; ++bank) {
 		if (!(per_cpu(bank_map, m.cpu) & (1 << bank)))
 			continue;
 		for (block = 0; block < NR_BLOCKS; ++block) {

@@ -467,7 +467,7 @@ static __cpuinit int allocate_threshold_blocks(unsigned int cpu,
 	u32 low, high;
 	int err;
 
-	if ((bank >= NR_BANKS) || (block >= NR_BLOCKS))
+	if ((bank >= mca_cfg.banks) || (block >= NR_BLOCKS))
 		return 0;
 
 	if (rdmsr_safe_on_cpu(cpu, address, &low, &high))

@@ -575,7 +575,7 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
 	const char *name = th_names[bank];
 	int err = 0;
 
-	if (shared_bank[bank]) {
+	if (is_shared_bank(bank)) {
 		nb = node_to_amd_nb(amd_get_nb_id(cpu));
 
 		/* threshold descriptor already initialized on this node? */

@@ -609,7 +609,7 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
 
 	per_cpu(threshold_banks, cpu)[bank] = b;
 
-	if (shared_bank[bank]) {
+	if (is_shared_bank(bank)) {
 		atomic_set(&b->cpus, 1);
 
 		/* nb is already initialized, see above */

@@ -635,9 +635,17 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
 static __cpuinit int threshold_create_device(unsigned int cpu)
 {
 	unsigned int bank;
+	struct threshold_bank **bp;
 	int err = 0;
 
-	for (bank = 0; bank < NR_BANKS; ++bank) {
+	bp = kzalloc(sizeof(struct threshold_bank *) * mca_cfg.banks,
+		     GFP_KERNEL);
+	if (!bp)
+		return -ENOMEM;
+
+	per_cpu(threshold_banks, cpu) = bp;
+
+	for (bank = 0; bank < mca_cfg.banks; ++bank) {
 		if (!(per_cpu(bank_map, cpu) & (1 << bank)))
 			continue;
 		err = threshold_create_bank(cpu, bank);

@@ -691,7 +699,7 @@ static void threshold_remove_bank(unsigned int cpu, int bank)
 	if (!b->blocks)
 		goto free_out;
 
-	if (shared_bank[bank]) {
+	if (is_shared_bank(bank)) {
 		if (!atomic_dec_and_test(&b->cpus)) {
 			__threshold_remove_blocks(b);
 			per_cpu(threshold_banks, cpu)[bank] = NULL;

@@ -719,11 +727,12 @@ static void threshold_remove_device(unsigned int cpu)
 {
 	unsigned int bank;
 
-	for (bank = 0; bank < NR_BANKS; ++bank) {
+	for (bank = 0; bank < mca_cfg.banks; ++bank) {
 		if (!(per_cpu(bank_map, cpu) & (1 << bank)))
 			continue;
 		threshold_remove_bank(cpu, bank);
 	}
+	kfree(per_cpu(threshold_banks, cpu));
 }
 
 /* get notified when a cpu comes on/off */

index 402c454..ae1697c 100644
@@ -285,39 +285,24 @@ void cmci_clear(void)
 	raw_spin_unlock_irqrestore(&cmci_discover_lock, flags);
 }
 
-static long cmci_rediscover_work_func(void *arg)
+static void cmci_rediscover_work_func(void *arg)
 {
 	int banks;
 
 	/* Recheck banks in case CPUs don't all have the same */
 	if (cmci_supported(&banks))
 		cmci_discover(banks);
-
-	return 0;
 }
 
-/*
- * After a CPU went down cycle through all the others and rediscover
- * Must run in process context.
- */
-void cmci_rediscover(int dying)
+/* After a CPU went down cycle through all the others and rediscover */
+void cmci_rediscover(void)
 {
-	int cpu, banks;
+	int banks;
 
 	if (!cmci_supported(&banks))
 		return;
 
-	for_each_online_cpu(cpu) {
-		if (cpu == dying)
-			continue;
-
-		if (cpu == smp_processor_id()) {
-			cmci_rediscover_work_func(NULL);
-			continue;
-		}
-
-		work_on_cpu(cpu, cmci_rediscover_work_func, NULL);
-	}
+	on_each_cpu(cmci_rediscover_work_func, NULL, 1);
 }
 
 /*

107 lines not on this page · raw message

index 35637d8..2c6f113 100644
@@ -172,7 +172,8 @@
  */
 #define PCI_DEVICE_ID_AMD_15H_NB_F1	0x1601
 #define PCI_DEVICE_ID_AMD_15H_NB_F2	0x1602
-
+#define PCI_DEVICE_ID_AMD_16H_NB_F1	0x1531
+#define PCI_DEVICE_ID_AMD_16H_NB_F2	0x1532
 
 /*
  * Function 1 - Address Map

@@ -296,6 +297,7 @@ enum amd_families {
 	K8_CPUS = 0,
 	F10_CPUS,
 	F15_CPUS,
+	F16_CPUS,
 	NUM_FAMILIES,
 };
 

index f11c1c2..9b3b858 100644
@@ -524,6 +524,8 @@
 #define PCI_DEVICE_ID_AMD_15H_NB_F3	0x1603
 #define PCI_DEVICE_ID_AMD_15H_NB_F4	0x1604
 #define PCI_DEVICE_ID_AMD_15H_NB_F5	0x1605
+#define PCI_DEVICE_ID_AMD_16H_NB_F3	0x1533
+#define PCI_DEVICE_ID_AMD_16H_NB_F4	0x1534
 #define PCI_DEVICE_ID_AMD_CNB17H_F3	0x1703
 #define PCI_DEVICE_ID_AMD_LANCE		0x2000
 #define PCI_DEVICE_ID_AMD_LANCE_HOME	0x2001