Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/l…

…inux/kernel/git/tip/linux-2.6-tip

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: Fix Moorestown VRTC fixmap placement
  x86/gpio: Implement x86 gpio_to_irq convert function
  x86, UV: Fix APICID shift for Westmere processors
  x86: Use PCI method for enabling AMD extended config space before MSR method
  x86: tsc: Prevent delayed init if initial tsc calibration failed
  x86, lapic-timer: Increase the max_delta to 31 bits
  x86: Fix sparse non-ANSI function warnings in smpboot.c
  x86, numa: Fix CONFIG_DEBUG_PER_CPU_MAPS without NUMA emulation
  x86, AMD, PCI: Add AMD northbridge PCI device id for CPU families 12h and 14h
  x86, numa: Fix cpu to node mapping for sparse node ids
  x86, numa: Fake node-to-cpumask for NUMA emulation
  x86, numa: Fake apicid and pxm mappings for NUMA emulation
  x86, numa: Avoid compiling NUMA emulation functions without CONFIG_NUMA_EMU
  x86, numa: Reduce minimum fake node size to 32M

Fix up trivial conflict in arch/x86/kernel/apic/x2apic_uv_x.c

arch/x86/include/asm/acpi.h

@@ -185,17 +185,16 @@ struct bootnode;
 
 #ifdef CONFIG_ACPI_NUMA
 extern int acpi_numa;
-extern int acpi_get_nodes(struct bootnode *physnodes);
+extern void acpi_get_nodes(struct bootnode *physnodes, unsigned long start,
+				unsigned long end);
 extern int acpi_scan_nodes(unsigned long start, unsigned long end);
 #define NR_NODE_MEMBLKS (MAX_NUMNODES*2)
+
+#ifdef CONFIG_NUMA_EMU
 extern void acpi_fake_nodes(const struct bootnode *fake_nodes,
 				   int num_nodes);
-#else
-static inline void acpi_fake_nodes(const struct bootnode *fake_nodes,
-				   int num_nodes)
-{
-}
 #endif
+#endif /* CONFIG_ACPI_NUMA */
 
 #define acpi_unlazy_tlb(x)	leave_mm(x)
 

arch/x86/include/asm/amd_nb.h

@@ -3,16 +3,27 @@
 
 #include <linux/pci.h>
 
+struct amd_nb_bus_dev_range {
+	u8 bus;
+	u8 dev_base;
+	u8 dev_limit;
+};
+
 extern struct pci_device_id amd_nb_misc_ids[];
+extern const struct amd_nb_bus_dev_range amd_nb_bus_dev_ranges[];
 struct bootnode;
 
 extern int early_is_amd_nb(u32 value);
 extern int amd_cache_northbridges(void);
 extern void amd_flush_garts(void);
-extern int amd_get_nodes(struct bootnode *nodes);
 extern int amd_numa_init(unsigned long start_pfn, unsigned long end_pfn);
 extern int amd_scan_nodes(void);
 
+#ifdef CONFIG_NUMA_EMU
+extern void amd_fake_nodes(const struct bootnode *nodes, int nr_nodes);
+extern void amd_get_nodes(struct bootnode *nodes);
+#endif
+
 struct amd_northbridge {
 	struct pci_dev *misc;
 };

arch/x86/include/asm/fixmap.h

@@ -116,11 +116,11 @@ enum fixed_addresses {
 #endif
 	FIX_TEXT_POKE1,	/* reserve 2 pages for text_poke() */
 	FIX_TEXT_POKE0, /* first page is last, because allocation is backward */
-	__end_of_permanent_fixed_addresses,
-
 #ifdef	CONFIG_X86_MRST
 	FIX_LNW_VRTC,
 #endif
+	__end_of_permanent_fixed_addresses,
+
 	/*
 	 * 256 temporary boot-time mappings, used by early_ioremap(),
 	 * before ioremap() is functional.

arch/x86/include/asm/gpio.h

@@ -38,12 +38,9 @@ static inline int gpio_cansleep(unsigned int gpio)
 	return __gpio_cansleep(gpio);
 }
 
-/*
- * Not implemented, yet.
- */
 static inline int gpio_to_irq(unsigned int gpio)
 {
-	return -ENOSYS;
+	return __gpio_to_irq(gpio);
 }
 
 static inline int irq_to_gpio(unsigned int irq)

arch/x86/include/asm/numa_64.h

@@ -38,7 +38,7 @@ extern void __cpuinit numa_add_cpu(int cpu);
 extern void __cpuinit numa_remove_cpu(int cpu);
 
 #ifdef CONFIG_NUMA_EMU
-#define FAKE_NODE_MIN_SIZE	((u64)64 << 20)
+#define FAKE_NODE_MIN_SIZE	((u64)32 << 20)
 #define FAKE_NODE_MIN_HASH_MASK	(~(FAKE_NODE_MIN_SIZE - 1UL))
 #endif /* CONFIG_NUMA_EMU */
 #else

arch/x86/kernel/amd_nb.c

@@ -20,6 +20,13 @@ struct pci_device_id amd_nb_misc_ids[] = {
 };
 EXPORT_SYMBOL(amd_nb_misc_ids);
 
+const struct amd_nb_bus_dev_range amd_nb_bus_dev_ranges[] __initconst = {
+	{ 0x00, 0x18, 0x20 },
+	{ 0xff, 0x00, 0x20 },
+	{ 0xfe, 0x00, 0x20 },
+	{ }
+};
+
 struct amd_northbridge_info amd_northbridges;
 EXPORT_SYMBOL(amd_northbridges);
 

arch/x86/kernel/aperture_64.c

@@ -39,18 +39,6 @@ int fallback_aper_force __initdata;
 
 int fix_aperture __initdata = 1;
 
-struct bus_dev_range {
-	int bus;
-	int dev_base;
-	int dev_limit;
-};
-
-static struct bus_dev_range bus_dev_ranges[] __initdata = {
-	{ 0x00, 0x18, 0x20},
-	{ 0xff, 0x00, 0x20},
-	{ 0xfe, 0x00, 0x20}
-};
-
 static struct resource gart_resource = {
 	.name	= "GART",
 	.flags	= IORESOURCE_MEM,
@@ -294,13 +282,13 @@ void __init early_gart_iommu_check(void)
 	search_agp_bridge(&agp_aper_order, &valid_agp);
 
 	fix = 0;
-	for (i = 0; i < ARRAY_SIZE(bus_dev_ranges); i++) {
+	for (i = 0; amd_nb_bus_dev_ranges[i].dev_limit; i++) {
 		int bus;
 		int dev_base, dev_limit;
 
-		bus = bus_dev_ranges[i].bus;
-		dev_base = bus_dev_ranges[i].dev_base;
-		dev_limit = bus_dev_ranges[i].dev_limit;
+		bus = amd_nb_bus_dev_ranges[i].bus;
+		dev_base = amd_nb_bus_dev_ranges[i].dev_base;
+		dev_limit = amd_nb_bus_dev_ranges[i].dev_limit;
 
 		for (slot = dev_base; slot < dev_limit; slot++) {
 			if (!early_is_amd_nb(read_pci_config(bus, slot, 3, 0x00)))
@@ -349,13 +337,13 @@ void __init early_gart_iommu_check(void)
 		return;
 
 	/* disable them all at first */
-	for (i = 0; i < ARRAY_SIZE(bus_dev_ranges); i++) {
+	for (i = 0; i < amd_nb_bus_dev_ranges[i].dev_limit; i++) {
 		int bus;
 		int dev_base, dev_limit;
 
-		bus = bus_dev_ranges[i].bus;
-		dev_base = bus_dev_ranges[i].dev_base;
-		dev_limit = bus_dev_ranges[i].dev_limit;
+		bus = amd_nb_bus_dev_ranges[i].bus;
+		dev_base = amd_nb_bus_dev_ranges[i].dev_base;
+		dev_limit = amd_nb_bus_dev_ranges[i].dev_limit;
 
 		for (slot = dev_base; slot < dev_limit; slot++) {
 			if (!early_is_amd_nb(read_pci_config(bus, slot, 3, 0x00)))
@@ -390,14 +378,14 @@ int __init gart_iommu_hole_init(void)
 
 	fix = 0;
 	node = 0;
-	for (i = 0; i < ARRAY_SIZE(bus_dev_ranges); i++) {
+	for (i = 0; i < amd_nb_bus_dev_ranges[i].dev_limit; i++) {
 		int bus;
 		int dev_base, dev_limit;
 		u32 ctl;
 
-		bus = bus_dev_ranges[i].bus;
-		dev_base = bus_dev_ranges[i].dev_base;
-		dev_limit = bus_dev_ranges[i].dev_limit;
+		bus = amd_nb_bus_dev_ranges[i].bus;
+		dev_base = amd_nb_bus_dev_ranges[i].dev_base;
+		dev_limit = amd_nb_bus_dev_ranges[i].dev_limit;
 
 		for (slot = dev_base; slot < dev_limit; slot++) {
 			if (!early_is_amd_nb(read_pci_config(bus, slot, 3, 0x00)))
@@ -505,7 +493,7 @@ int __init gart_iommu_hole_init(void)
 	}
 
 	/* Fix up the north bridges */
-	for (i = 0; i < ARRAY_SIZE(bus_dev_ranges); i++) {
+	for (i = 0; i < amd_nb_bus_dev_ranges[i].dev_limit; i++) {
 		int bus, dev_base, dev_limit;
 
 		/*
@@ -514,9 +502,9 @@ int __init gart_iommu_hole_init(void)
 		 */
 		u32 ctl = DISTLBWALKPRB | aper_order << 1;
 
-		bus = bus_dev_ranges[i].bus;
-		dev_base = bus_dev_ranges[i].dev_base;
-		dev_limit = bus_dev_ranges[i].dev_limit;
+		bus = amd_nb_bus_dev_ranges[i].bus;
+		dev_base = amd_nb_bus_dev_ranges[i].dev_base;
+		dev_limit = amd_nb_bus_dev_ranges[i].dev_limit;
 		for (slot = dev_base; slot < dev_limit; slot++) {
 			if (!early_is_amd_nb(read_pci_config(bus, slot, 3, 0x00)))
 				continue;

arch/x86/kernel/apic/apic.c

@@ -684,7 +684,7 @@ static int __init calibrate_APIC_clock(void)
 	lapic_clockevent.mult = div_sc(delta, TICK_NSEC * LAPIC_CAL_LOOPS,
 				       lapic_clockevent.shift);
 	lapic_clockevent.max_delta_ns =
-		clockevent_delta2ns(0x7FFFFF, &lapic_clockevent);
+		clockevent_delta2ns(0x7FFFFFFF, &lapic_clockevent);
 	lapic_clockevent.min_delta_ns =
 		clockevent_delta2ns(0xF, &lapic_clockevent);
 

arch/x86/kernel/apic/x2apic_uv_x.c

@@ -378,7 +378,7 @@ struct apic __refdata apic_x2apic_uv_x = {
 
 static __cpuinit void set_x2apic_extra_bits(int pnode)
 {
-	__this_cpu_write(x2apic_extra_bits, (pnode << 6));
+	__this_cpu_write(x2apic_extra_bits, pnode << uvh_apicid.s.pnode_shift);
 }
 
 /*

arch/x86/kernel/smpboot.c

@@ -97,12 +97,12 @@ static DEFINE_PER_CPU(struct task_struct *, idle_thread_array);
  */
 static DEFINE_MUTEX(x86_cpu_hotplug_driver_mutex);
 
-void cpu_hotplug_driver_lock()
+void cpu_hotplug_driver_lock(void)
 {
         mutex_lock(&x86_cpu_hotplug_driver_mutex);
 }
 
-void cpu_hotplug_driver_unlock()
+void cpu_hotplug_driver_unlock(void)
 {
         mutex_unlock(&x86_cpu_hotplug_driver_mutex);
 }

arch/x86/kernel/tsc.c

@@ -965,7 +965,7 @@ static void tsc_refine_calibration_work(struct work_struct *work)
 
 static int __init init_tsc_clocksource(void)
 {
-	if (!cpu_has_tsc || tsc_disabled > 0)
+	if (!cpu_has_tsc || tsc_disabled > 0 || !tsc_khz)
 		return 0;
 
 	if (tsc_clocksource_reliable)

arch/x86/mm/amdtopology_64.c

@@ -27,6 +27,7 @@
 #include <asm/amd_nb.h>
 
 static struct bootnode __initdata nodes[8];
+static unsigned char __initdata nodeids[8];
 static nodemask_t __initdata nodes_parsed = NODE_MASK_NONE;
 
 static __init int find_northbridge(void)
@@ -68,19 +69,6 @@ static __init void early_get_boot_cpu_id(void)
 #endif
 }
 
-int __init amd_get_nodes(struct bootnode *physnodes)
-{
-	int i;
-	int ret = 0;
-
-	for_each_node_mask(i, nodes_parsed) {
-		physnodes[ret].start = nodes[i].start;
-		physnodes[ret].end = nodes[i].end;
-		ret++;
-	}
-	return ret;
-}
-
 int __init amd_numa_init(unsigned long start_pfn, unsigned long end_pfn)
 {
 	unsigned long start = PFN_PHYS(start_pfn);
@@ -113,7 +101,7 @@ int __init amd_numa_init(unsigned long start_pfn, unsigned long end_pfn)
 		base = read_pci_config(0, nb, 1, 0x40 + i*8);
 		limit = read_pci_config(0, nb, 1, 0x44 + i*8);
 
-		nodeid = limit & 7;
+		nodeids[i] = nodeid = limit & 7;
 		if ((base & 3) == 0) {
 			if (i < numnodes)
 				pr_info("Skipping disabled node %d\n", i);
@@ -193,6 +181,76 @@ int __init amd_numa_init(unsigned long start_pfn, unsigned long end_pfn)
 	return 0;
 }
 
+#ifdef CONFIG_NUMA_EMU
+static s16 fake_apicid_to_node[MAX_LOCAL_APIC] __initdata = {
+	[0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
+};
+
+void __init amd_get_nodes(struct bootnode *physnodes)
+{
+	int i;
+
+	for_each_node_mask(i, nodes_parsed) {
+		physnodes[i].start = nodes[i].start;
+		physnodes[i].end = nodes[i].end;
+	}
+}
+
+static int __init find_node_by_addr(unsigned long addr)
+{
+	int ret = NUMA_NO_NODE;
+	int i;
+
+	for (i = 0; i < 8; i++)
+		if (addr >= nodes[i].start && addr < nodes[i].end) {
+			ret = i;
+			break;
+		}
+	return ret;
+}
+
+/*
+ * For NUMA emulation, fake proximity domain (_PXM) to node id mappings must be
+ * setup to represent the physical topology but reflect the emulated
+ * environment.  For each emulated node, the real node which it appears on is
+ * found and a fake pxm to nid mapping is created which mirrors the actual
+ * locality.  node_distance() then represents the correct distances between
+ * emulated nodes by using the fake acpi mappings to pxms.
+ */
+void __init amd_fake_nodes(const struct bootnode *nodes, int nr_nodes)
+{
+	unsigned int bits;
+	unsigned int cores;
+	unsigned int apicid_base = 0;
+	int i;
+
+	bits = boot_cpu_data.x86_coreid_bits;
+	cores = 1 << bits;
+	early_get_boot_cpu_id();
+	if (boot_cpu_physical_apicid > 0)
+		apicid_base = boot_cpu_physical_apicid;
+
+	for (i = 0; i < nr_nodes; i++) {
+		int index;
+		int nid;
+		int j;
+
+		nid = find_node_by_addr(nodes[i].start);
+		if (nid == NUMA_NO_NODE)
+			continue;
+
+		index = nodeids[nid] << bits;
+		if (fake_apicid_to_node[index + apicid_base] == NUMA_NO_NODE)
+			for (j = apicid_base; j < cores + apicid_base; j++)
+				fake_apicid_to_node[index + j] = i;
+#ifdef CONFIG_ACPI_NUMA
+		__acpi_map_pxm_to_node(nid, i);
+#endif
+	}
+	memcpy(apicid_to_node, fake_apicid_to_node, sizeof(apicid_to_node));
+}
+#endif /* CONFIG_NUMA_EMU */
+
 int __init amd_scan_nodes(void)
 {
 	unsigned int bits;