Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (50 commits)
  x86, mm: Allow ZONE_DMA to be configurable
  x86, NUMA: Trim numa meminfo with max_pfn in a separate loop
  x86, NUMA: Rename setup_node_bootmem() to setup_node_data()
  x86, NUMA: Enable emulation on 32bit too
  x86, NUMA: Enable CONFIG_AMD_NUMA on 32bit too
  x86, NUMA: Rename amdtopology_64.c to amdtopology.c
  x86, NUMA: Make numa_init_array() static
  x86, NUMA: Make 32bit use common NUMA init path
  x86, NUMA: Initialize and use remap allocator from setup_node_bootmem()
  x86-32, NUMA: Add @start and @end to init_alloc_remap()
  x86, NUMA: Remove long 64bit assumption from numa.c
  x86, NUMA: Enable build of generic NUMA init code on 32bit
  x86, NUMA: Move NUMA init logic from numa_64.c to numa.c
  x86-32, NUMA: Update numaq to use new NUMA init protocol
  x86-32, NUMA: Replace srat_32.c with srat.c
  x86-32, NUMA: implement temporary NUMA init shims
  x86, NUMA: Move numa_nodes_parsed to numa.[hc]
  x86-32, NUMA: Move get_memcfg_numa() into numa_32.c
  x86, NUMA: make srat.c 32bit safe
  x86, NUMA: rename srat_64.c to srat.c
  ...

arch/x86/Kconfig

@@ -112,7 +112,14 @@ config MMU
 	def_bool y
 
 config ZONE_DMA
-	def_bool y
+	bool "DMA memory allocation support" if EXPERT
+	default y
+	help
+	  DMA memory allocation support allows devices with less than 32-bit
+	  addressing to allocate within the first 16MB of address space.
+	  Disable if no such devices will be used.
+
+	  If unsure, say Y.
 
 config SBUS
 	bool
@@ -1164,7 +1171,7 @@ comment "NUMA (Summit) requires SMP, 64GB highmem support, ACPI"
 config AMD_NUMA
 	def_bool y
 	prompt "Old style AMD Opteron NUMA detection"
-	depends on X86_64 && NUMA && PCI
+	depends on NUMA && PCI
 	---help---
 	  Enable AMD NUMA node topology detection.  You should say Y here if
 	  you have a multi processor AMD system. This uses an old method to
@@ -1191,7 +1198,7 @@ config NODES_SPAN_OTHER_NODES
 
 config NUMA_EMU
 	bool "NUMA emulation"
-	depends on X86_64 && NUMA
+	depends on NUMA
 	---help---
 	  Enable NUMA emulation. A flat machine will be split
 	  into virtual nodes when booted with "numa=fake=N", where N is the
@@ -1213,6 +1220,10 @@ config HAVE_ARCH_BOOTMEM
 	def_bool y
 	depends on X86_32 && NUMA
 
+config HAVE_ARCH_ALLOC_REMAP
+	def_bool y
+	depends on X86_32 && NUMA
+
 config ARCH_HAVE_MEMORY_PRESENT
 	def_bool y
 	depends on X86_32 && DISCONTIGMEM
@@ -1221,13 +1232,9 @@ config NEED_NODE_MEMMAP_SIZE
 	def_bool y
 	depends on X86_32 && (DISCONTIGMEM || SPARSEMEM)
 
-config HAVE_ARCH_ALLOC_REMAP
-	def_bool y
-	depends on X86_32 && NUMA
-
 config ARCH_FLATMEM_ENABLE
 	def_bool y
-	depends on X86_32 && ARCH_SELECT_MEMORY_MODEL && !NUMA
+	depends on X86_32 && !NUMA
 
 config ARCH_DISCONTIGMEM_ENABLE
 	def_bool y
@@ -1237,20 +1244,16 @@ config ARCH_DISCONTIGMEM_DEFAULT
 	def_bool y
 	depends on NUMA && X86_32
 
-config ARCH_PROC_KCORE_TEXT
-	def_bool y
-	depends on X86_64 && PROC_KCORE
-
-config ARCH_SPARSEMEM_DEFAULT
-	def_bool y
-	depends on X86_64
-
 config ARCH_SPARSEMEM_ENABLE
 	def_bool y
 	depends on X86_64 || NUMA || (EXPERIMENTAL && X86_32) || X86_32_NON_STANDARD
 	select SPARSEMEM_STATIC if X86_32
 	select SPARSEMEM_VMEMMAP_ENABLE if X86_64
 
+config ARCH_SPARSEMEM_DEFAULT
+	def_bool y
+	depends on X86_64
+
 config ARCH_SELECT_MEMORY_MODEL
 	def_bool y
 	depends on ARCH_SPARSEMEM_ENABLE
@@ -1259,6 +1262,10 @@ config ARCH_MEMORY_PROBE
 	def_bool X86_64
 	depends on MEMORY_HOTPLUG
 
+config ARCH_PROC_KCORE_TEXT
+	def_bool y
+	depends on X86_64 && PROC_KCORE
+
 config ILLEGAL_POINTER_VALUE
        hex
        default 0 if X86_32
@@ -1693,10 +1700,6 @@ config ARCH_ENABLE_MEMORY_HOTREMOVE
 	def_bool y
 	depends on MEMORY_HOTPLUG
 
-config HAVE_ARCH_EARLY_PFN_TO_NID
-	def_bool X86_64
-	depends on NUMA
-
 config USE_PERCPU_NUMA_NODE_ID
 	def_bool y
 	depends on NUMA

arch/x86/include/asm/acpi.h

@@ -183,8 +183,6 @@ static inline void disable_acpi(void) { }
 
 #define ARCH_HAS_POWER_INIT	1
 
-struct bootnode;
-
 #ifdef CONFIG_ACPI_NUMA
 extern int acpi_numa;
 extern int x86_acpi_numa_init(void);

arch/x86/include/asm/amd_nb.h

@@ -11,7 +11,6 @@ struct amd_nb_bus_dev_range {
 
 extern const struct pci_device_id amd_nb_misc_ids[];
 extern const struct amd_nb_bus_dev_range amd_nb_bus_dev_ranges[];
-struct bootnode;
 
 extern bool early_is_amd_nb(u32 value);
 extern int amd_cache_northbridges(void);

arch/x86/include/asm/apic.h

@@ -363,7 +363,12 @@ struct apic {
 	 */
 	int (*x86_32_early_logical_apicid)(int cpu);
 
-	/* determine CPU -> NUMA node mapping */
+	/*
+	 * Optional method called from setup_local_APIC() after logical
+	 * apicid is guaranteed to be known to initialize apicid -> node
+	 * mapping if NUMA initialization hasn't done so already.  Don't
+	 * add new users.
+	 */
 	int (*x86_32_numa_cpu_node)(int cpu);
 #endif
 };
@@ -537,8 +542,6 @@ static inline int default_phys_pkg_id(int cpuid_apic, int index_msb)
 	return cpuid_apic >> index_msb;
 }
 
-extern int default_x86_32_numa_cpu_node(int cpu);
-
 #endif
 
 static inline unsigned int

arch/x86/include/asm/cpufeature.h

@@ -208,8 +208,7 @@ extern const char * const x86_power_flags[32];
 #define test_cpu_cap(c, bit)						\
 	 test_bit(bit, (unsigned long *)((c)->x86_capability))
 
-#define cpu_has(c, bit)							\
-	(__builtin_constant_p(bit) &&					\
+#define REQUIRED_MASK_BIT_SET(bit)					\
 	 ( (((bit)>>5)==0 && (1UL<<((bit)&31) & REQUIRED_MASK0)) ||	\
 	   (((bit)>>5)==1 && (1UL<<((bit)&31) & REQUIRED_MASK1)) ||	\
 	   (((bit)>>5)==2 && (1UL<<((bit)&31) & REQUIRED_MASK2)) ||	\
@@ -219,10 +218,16 @@ extern const char * const x86_power_flags[32];
 	   (((bit)>>5)==6 && (1UL<<((bit)&31) & REQUIRED_MASK6)) ||	\
 	   (((bit)>>5)==7 && (1UL<<((bit)&31) & REQUIRED_MASK7)) ||	\
 	   (((bit)>>5)==8 && (1UL<<((bit)&31) & REQUIRED_MASK8)) ||	\
-	   (((bit)>>5)==9 && (1UL<<((bit)&31) & REQUIRED_MASK9)) )	\
-	  ? 1 :								\
+	   (((bit)>>5)==9 && (1UL<<((bit)&31) & REQUIRED_MASK9)) )
+
+#define cpu_has(c, bit)							\
+	(__builtin_constant_p(bit) && REQUIRED_MASK_BIT_SET(bit) ? 1 :	\
 	 test_cpu_cap(c, bit))
 
+#define this_cpu_has(bit)						\
+	(__builtin_constant_p(bit) && REQUIRED_MASK_BIT_SET(bit) ? 1 : 	\
+	 x86_this_cpu_test_bit(bit, (unsigned long *)&cpu_info.x86_capability))
+
 #define boot_cpu_has(bit)	cpu_has(&boot_cpu_data, bit)
 
 #define set_cpu_cap(c, bit)	set_bit(bit, (unsigned long *)((c)->x86_capability))

arch/x86/include/asm/dma.h

@@ -69,22 +69,18 @@
 
 #define MAX_DMA_CHANNELS	8
 
-#ifdef CONFIG_X86_32
-
-/* The maximum address that we can perform a DMA transfer to on this platform */
-#define MAX_DMA_ADDRESS      (PAGE_OFFSET + 0x1000000)
-
-#else
-
 /* 16MB ISA DMA zone */
 #define MAX_DMA_PFN   ((16 * 1024 * 1024) >> PAGE_SHIFT)
 
 /* 4GB broken PCI/AGP hardware bus master zone */
 #define MAX_DMA32_PFN ((4UL * 1024 * 1024 * 1024) >> PAGE_SHIFT)
 
+#ifdef CONFIG_X86_32
+/* The maximum address that we can perform a DMA transfer to on this platform */
+#define MAX_DMA_ADDRESS      (PAGE_OFFSET + 0x1000000)
+#else
 /* Compat define for old dma zone */
 #define MAX_DMA_ADDRESS ((unsigned long)__va(MAX_DMA_PFN << PAGE_SHIFT))
-
 #endif
 
 /* 8237 DMA controllers */

arch/x86/include/asm/mmzone_32.h

@@ -13,31 +13,11 @@ extern struct pglist_data *node_data[];
 #define NODE_DATA(nid)	(node_data[nid])
 
 #include <asm/numaq.h>
-/* summit or generic arch */
-#include <asm/srat.h>
-
-extern int get_memcfg_numa_flat(void);
-/*
- * This allows any one NUMA architecture to be compiled
- * for, and still fall back to the flat function if it
- * fails.
- */
-static inline void get_memcfg_numa(void)
-{
-
-	if (get_memcfg_numaq())
-		return;
-	if (get_memcfg_from_srat())
-		return;
-	get_memcfg_numa_flat();
-}
 
 extern void resume_map_numa_kva(pgd_t *pgd);
 
 #else /* !CONFIG_NUMA */
 
-#define get_memcfg_numa get_memcfg_numa_flat
-
 static inline void resume_map_numa_kva(pgd_t *pgd) {}
 
 #endif /* CONFIG_NUMA */

arch/x86/include/asm/mmzone_64.h

@@ -4,36 +4,13 @@
 #ifndef _ASM_X86_MMZONE_64_H
 #define _ASM_X86_MMZONE_64_H
 
-
 #ifdef CONFIG_NUMA
 
 #include <linux/mmdebug.h>
-
 #include <asm/smp.h>
 
-/* Simple perfect hash to map physical addresses to node numbers */
-struct memnode {
-	int shift;
-	unsigned int mapsize;
-	s16 *map;
-	s16 embedded_map[64 - 8];
-} ____cacheline_aligned; /* total size = 128 bytes */
-extern struct memnode memnode;
-#define memnode_shift memnode.shift
-#define memnodemap memnode.map
-#define memnodemapsize memnode.mapsize
-
 extern struct pglist_data *node_data[];
 
-static inline __attribute__((pure)) int phys_to_nid(unsigned long addr)
-{
-	unsigned nid;
-	VIRTUAL_BUG_ON(!memnodemap);
-	nid = memnodemap[addr >> memnode_shift];
-	VIRTUAL_BUG_ON(nid >= MAX_NUMNODES || !node_data[nid]);
-	return nid;
-}
-
 #define NODE_DATA(nid)		(node_data[nid])
 
 #define node_start_pfn(nid)	(NODE_DATA(nid)->node_start_pfn)

arch/x86/include/asm/numa.h

 #ifndef _ASM_X86_NUMA_H
 #define _ASM_X86_NUMA_H
 
+#include <linux/nodemask.h>
+
 #include <asm/topology.h>
 #include <asm/apicdef.h>
 
 #ifdef CONFIG_NUMA
 
 #define NR_NODE_MEMBLKS		(MAX_NUMNODES*2)
+#define ZONE_ALIGN (1UL << (MAX_ORDER+PAGE_SHIFT))
+
+/*
+ * Too small node sizes may confuse the VM badly. Usually they
+ * result from BIOS bugs. So dont recognize nodes as standalone
+ * NUMA entities that have less than this amount of RAM listed:
+ */
+#define NODE_MIN_SIZE (4*1024*1024)
+
+extern int numa_off;
 
 /*
  * __apicid_to_node[] stores the raw mapping between physical apicid and
@@ -17,15 +29,27 @@
  * numa_cpu_node().
  */
 extern s16 __apicid_to_node[MAX_LOCAL_APIC];
+extern nodemask_t numa_nodes_parsed __initdata;
+
+extern int __init numa_add_memblk(int nodeid, u64 start, u64 end);
+extern void __init numa_set_distance(int from, int to, int distance);
 
 static inline void set_apicid_to_node(int apicid, s16 node)
 {
 	__apicid_to_node[apicid] = node;
 }
+
+extern int __cpuinit numa_cpu_node(int cpu);
+
 #else	/* CONFIG_NUMA */
 static inline void set_apicid_to_node(int apicid, s16 node)
 {
 }
+
+static inline int numa_cpu_node(int cpu)
+{
+	return NUMA_NO_NODE;
+}
 #endif	/* CONFIG_NUMA */
 
 #ifdef CONFIG_X86_32
@@ -37,14 +61,12 @@ static inline void set_apicid_to_node(int apicid, s16 node)
 #ifdef CONFIG_NUMA
 extern void __cpuinit numa_set_node(int cpu, int node);
 extern void __cpuinit numa_clear_node(int cpu);
-extern void __init numa_init_array(void);
 extern void __init init_cpu_to_node(void);
 extern void __cpuinit numa_add_cpu(int cpu);
 extern void __cpuinit numa_remove_cpu(int cpu);
 #else	/* CONFIG_NUMA */
 static inline void numa_set_node(int cpu, int node)	{ }
 static inline void numa_clear_node(int cpu)		{ }
-static inline void numa_init_array(void)		{ }
 static inline void init_cpu_to_node(void)		{ }
 static inline void numa_add_cpu(int cpu)		{ }
 static inline void numa_remove_cpu(int cpu)		{ }
@@ -54,4 +76,10 @@ static inline void numa_remove_cpu(int cpu)		{ }
 void debug_cpumask_set_cpu(int cpu, int node, bool enable);
 #endif
 
+#ifdef CONFIG_NUMA_EMU
+#define FAKE_NODE_MIN_SIZE	((u64)32 << 20)
+#define FAKE_NODE_MIN_HASH_MASK	(~(FAKE_NODE_MIN_SIZE - 1UL))
+void numa_emu_cmdline(char *);
+#endif /* CONFIG_NUMA_EMU */
+
 #endif	/* _ASM_X86_NUMA_H */

arch/x86/include/asm/numa_32.h

 #ifndef _ASM_X86_NUMA_32_H
 #define _ASM_X86_NUMA_32_H
 
-extern int numa_off;
-
-extern int pxm_to_nid(int pxm);
-
-#ifdef CONFIG_NUMA
-extern int __cpuinit numa_cpu_node(int cpu);
-#else	/* CONFIG_NUMA */
-static inline int numa_cpu_node(int cpu)		{ return NUMA_NO_NODE; }
-#endif	/* CONFIG_NUMA */
-
 #ifdef CONFIG_HIGHMEM
 extern void set_highmem_pages_init(void);
 #else

arch/x86/include/asm/numa_64.h

 #ifndef _ASM_X86_NUMA_64_H
 #define _ASM_X86_NUMA_64_H
 
-#include <linux/nodemask.h>
-
-struct bootnode {
-	u64 start;
-	u64 end;
-};
-
-#define ZONE_ALIGN (1UL << (MAX_ORDER+PAGE_SHIFT))
-
-extern int numa_off;
-
 extern unsigned long numa_free_all_bootmem(void);
-extern void setup_node_bootmem(int nodeid, unsigned long start,
-			       unsigned long end);
-
-#ifdef CONFIG_NUMA
-/*
- * Too small node sizes may confuse the VM badly. Usually they
- * result from BIOS bugs. So dont recognize nodes as standalone
- * NUMA entities that have less than this amount of RAM listed:
- */
-#define NODE_MIN_SIZE (4*1024*1024)
-
-extern nodemask_t numa_nodes_parsed __initdata;
-
-extern int __cpuinit numa_cpu_node(int cpu);
-extern int __init numa_add_memblk(int nodeid, u64 start, u64 end);
-extern void __init numa_set_distance(int from, int to, int distance);
-
-#ifdef CONFIG_NUMA_EMU
-#define FAKE_NODE_MIN_SIZE	((u64)32 << 20)
-#define FAKE_NODE_MIN_HASH_MASK	(~(FAKE_NODE_MIN_SIZE - 1UL))
-void numa_emu_cmdline(char *);
-#endif /* CONFIG_NUMA_EMU */
-#else
-static inline int numa_cpu_node(int cpu)		{ return NUMA_NO_NODE; }
-#endif
 
 #endif /* _ASM_X86_NUMA_64_H */

arch/x86/include/asm/numaq.h

@@ -29,7 +29,7 @@
 #ifdef CONFIG_X86_NUMAQ
 
 extern int found_numaq;
-extern int get_memcfg_numaq(void);
+extern int numaq_numa_init(void);
 extern int pci_numaq_init(void);
 
 extern void *xquad_portio;
@@ -166,11 +166,6 @@ struct sys_cfg_data {
 
 void numaq_tsc_disable(void);
 
-#else
-static inline int get_memcfg_numaq(void)
-{
-	return 0;
-}
 #endif /* CONFIG_X86_NUMAQ */
 #endif /* _ASM_X86_NUMAQ_H */
 

arch/x86/include/asm/percpu.h

@@ -542,6 +542,33 @@ do {									\
 	old__;								\
 })
 
+static __always_inline int x86_this_cpu_constant_test_bit(unsigned int nr,
+                        const unsigned long __percpu *addr)
+{
+	unsigned long __percpu *a = (unsigned long *)addr + nr / BITS_PER_LONG;
+
+	return ((1UL << (nr % BITS_PER_LONG)) & percpu_read(*a)) != 0;
+}
+
+static inline int x86_this_cpu_variable_test_bit(int nr,
+                        const unsigned long __percpu *addr)
+{
+	int oldbit;
+
+	asm volatile("bt "__percpu_arg(2)",%1\n\t"
+			"sbb %0,%0"
+			: "=r" (oldbit)
+			: "m" (*(unsigned long *)addr), "Ir" (nr));
+
+	return oldbit;
+}
+
+#define x86_this_cpu_test_bit(nr, addr)			\
+	(__builtin_constant_p((nr))			\
+	 ? x86_this_cpu_constant_test_bit((nr), (addr))	\
+	 : x86_this_cpu_variable_test_bit((nr), (addr)))
+
+
 #include <asm-generic/percpu.h>
 
 /* We can use this directly for local CPU (faster). */

arch/x86/include/asm/srat.h

-/*
- * Some of the code in this file has been gleaned from the 64 bit
- * discontigmem support code base.
- *
- * Copyright (C) 2002, IBM Corp.
- *
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT.  See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Send feedback to Pat Gaughen <gone@us.ibm.com>
- */
-
-#ifndef _ASM_X86_SRAT_H
-#define _ASM_X86_SRAT_H
-
-#ifdef CONFIG_ACPI_NUMA
-extern int get_memcfg_from_srat(void);
-#else
-static inline int get_memcfg_from_srat(void)
-{
-	return 0;
-}
-#endif
-
-#endif /* _ASM_X86_SRAT_H */

arch/x86/include/asm/topology.h

@@ -93,19 +93,11 @@ extern void setup_node_to_cpumask_map(void);
 #define pcibus_to_node(bus) __pcibus_to_node(bus)
 
 #ifdef CONFIG_X86_32
-extern unsigned long node_start_pfn[];
-extern unsigned long node_end_pfn[];
-extern unsigned long node_remap_size[];
-#define node_has_online_mem(nid) (node_start_pfn[nid] != node_end_pfn[nid])
-
 # define SD_CACHE_NICE_TRIES	1
 # define SD_IDLE_IDX		1
-
 #else
-
 # define SD_CACHE_NICE_TRIES	2
 # define SD_IDLE_IDX		2
-
 #endif
 
 /* sched_domains SD_NODE_INIT for NUMA machines */

arch/x86/kernel/apic/apic.c

@@ -505,7 +505,7 @@ static void __cpuinit setup_APIC_timer(void)
 {
 	struct clock_event_device *levt = &__get_cpu_var(lapic_events);
 
-	if (cpu_has(__this_cpu_ptr(&cpu_info), X86_FEATURE_ARAT)) {
+	if (this_cpu_has(X86_FEATURE_ARAT)) {
 		lapic_clockevent.features &= ~CLOCK_EVT_FEAT_C3STOP;
 		/* Make LAPIC timer preferrable over percpu HPET */
 		lapic_clockevent.rating = 150;
@@ -1237,6 +1237,17 @@ void __cpuinit setup_local_APIC(void)
 	/* always use the value from LDR */
 	early_per_cpu(x86_cpu_to_logical_apicid, cpu) =
 		logical_smp_processor_id();
+
+	/*
+	 * Some NUMA implementations (NUMAQ) don't initialize apicid to
+	 * node mapping during NUMA init.  Now that logical apicid is
+	 * guaranteed to be known, give it another chance.  This is already
+	 * a bit too late - percpu allocation has already happened without
+	 * proper NUMA affinity.
+	 */
+	if (apic->x86_32_numa_cpu_node)
+		set_apicid_to_node(early_per_cpu(x86_cpu_to_apicid, cpu),
+				   apic->x86_32_numa_cpu_node(cpu));
 #endif
 
 	/*
@@ -2014,21 +2025,6 @@ void default_init_apic_ldr(void)
 	apic_write(APIC_LDR, val);
 }
 
-#ifdef CONFIG_X86_32
-int default_x86_32_numa_cpu_node(int cpu)
-{
-#ifdef CONFIG_NUMA
-	int apicid = early_per_cpu(x86_cpu_to_apicid, cpu);
-
-	if (apicid != BAD_APICID)
-		return __apicid_to_node[apicid];
-	return NUMA_NO_NODE;
-#else
-	return 0;
-#endif
-}
-#endif
-
 /*
  * Power management
  */

arch/x86/kernel/apic/apic_noop.c

@@ -119,14 +119,6 @@ static void noop_apic_write(u32 reg, u32 v)
 	WARN_ON_ONCE(cpu_has_apic && !disable_apic);
 }
 
-#ifdef CONFIG_X86_32
-static int noop_x86_32_numa_cpu_node(int cpu)
-{
-	/* we're always on node 0 */
-	return 0;
-}
-#endif
-
 struct apic apic_noop = {
 	.name				= "noop",
 	.probe				= noop_probe,
@@ -195,6 +187,5 @@ struct apic apic_noop = {
 
 #ifdef CONFIG_X86_32
 	.x86_32_early_logical_apicid	= noop_x86_32_early_logical_apicid,
-	.x86_32_numa_cpu_node		= noop_x86_32_numa_cpu_node,
 #endif
 };

arch/x86/kernel/apic/bigsmp_32.c

@@ -253,5 +253,4 @@ struct apic apic_bigsmp = {
 	.safe_wait_icr_idle		= native_safe_apic_wait_icr_idle,
 
 	.x86_32_early_logical_apicid	= bigsmp_early_logical_apicid,
-	.x86_32_numa_cpu_node		= default_x86_32_numa_cpu_node,
 };

arch/x86/kernel/apic/es7000_32.c

@@ -510,11 +510,6 @@ static void es7000_setup_apic_routing(void)
 		nr_ioapics, cpumask_bits(es7000_target_cpus())[0]);
 }
 
-static int es7000_numa_cpu_node(int cpu)
-{
-	return 0;
-}
-
 static int es7000_cpu_present_to_apicid(int mps_cpu)
 {
 	if (!mps_cpu)
@@ -688,7 +683,6 @@ struct apic __refdata apic_es7000_cluster = {
 	.safe_wait_icr_idle		= native_safe_apic_wait_icr_idle,
 
 	.x86_32_early_logical_apicid	= es7000_early_logical_apicid,
-	.x86_32_numa_cpu_node		= es7000_numa_cpu_node,
 };
 
 struct apic __refdata apic_es7000 = {
@@ -752,5 +746,4 @@ struct apic __refdata apic_es7000 = {
 	.safe_wait_icr_idle		= native_safe_apic_wait_icr_idle,
 
 	.x86_32_early_logical_apicid	= es7000_early_logical_apicid,
-	.x86_32_numa_cpu_node		= es7000_numa_cpu_node,
 };

arch/x86/kernel/apic/numaq_32.c

@@ -48,8 +48,6 @@
 #include <asm/e820.h>
 #include <asm/ipi.h>
 
-#define	MB_TO_PAGES(addr)		((addr) << (20 - PAGE_SHIFT))
-
 int found_numaq;
 
 /*
@@ -79,31 +77,20 @@ int					quad_local_to_mp_bus_id[NR_CPUS/4][4];
 static inline void numaq_register_node(int node, struct sys_cfg_data *scd)
 {
 	struct eachquadmem *eq = scd->eq + node;
+	u64 start = (u64)(eq->hi_shrd_mem_start - eq->priv_mem_size) << 20;
+	u64 end = (u64)(eq->hi_shrd_mem_start + eq->hi_shrd_mem_size) << 20;
+	int ret;
 
-	node_set_online(node);
-
-	/* Convert to pages */
-	node_start_pfn[node] =
-		 MB_TO_PAGES(eq->hi_shrd_mem_start - eq->priv_mem_size);
-
-	node_end_pfn[node] =
-		 MB_TO_PAGES(eq->hi_shrd_mem_start + eq->hi_shrd_mem_size);
-
-	memblock_x86_register_active_regions(node, node_start_pfn[node],
-						node_end_pfn[node]);
-
-	memory_present(node, node_start_pfn[node], node_end_pfn[node]);
-
-	node_remap_size[node] = node_memmap_size_bytes(node,
-					node_start_pfn[node],
-					node_end_pfn[node]);
+	node_set(node, numa_nodes_parsed);
+	ret = numa_add_memblk(node, start, end);
+	BUG_ON(ret < 0);
 }
 
 /*
  * Function: smp_dump_qct()
  *
  * Description: gets memory layout from the quad config table.  This
- * function also updates node_online_map with the nodes (quads) present.
+ * function also updates numa_nodes_parsed with the nodes (quads) present.
  */
 static void __init smp_dump_qct(void)
 {
@@ -112,7 +99,6 @@ static void __init smp_dump_qct(void)
 
 	scd = (void *)__va(SYS_CFG_DATA_PRIV_ADDR);
 
-	nodes_clear(node_online_map);
 	for_each_node(node) {
 		if (scd->quads_present31_0 & (1 << node))
 			numaq_register_node(node, scd);
@@ -282,14 +268,14 @@ static __init void early_check_numaq(void)
 	}
 }
 
-int __init get_memcfg_numaq(void)
+int __init numaq_numa_init(void)
 {
 	early_check_numaq();
 	if (!found_numaq)
-		return 0;
+		return -ENOENT;
 	smp_dump_qct();
 
-	return 1;
+	return 0;
 }
 
 #define NUMAQ_APIC_DFR_VALUE	(APIC_DFR_CLUSTER)

arch/x86/kernel/apic/probe_32.c

@@ -172,7 +172,6 @@ struct apic apic_default = {
 	.safe_wait_icr_idle		= native_safe_apic_wait_icr_idle,
 
 	.x86_32_early_logical_apicid	= default_x86_32_early_logical_apicid,
-	.x86_32_numa_cpu_node		= default_x86_32_numa_cpu_node,
 };
 
 extern struct apic apic_numaq;

arch/x86/kernel/apic/summit_32.c

@@ -551,5 +551,4 @@ struct apic apic_summit = {
 	.safe_wait_icr_idle		= native_safe_apic_wait_icr_idle,
 
 	.x86_32_early_logical_apicid	= summit_early_logical_apicid,
-	.x86_32_numa_cpu_node		= default_x86_32_numa_cpu_node,
 };

arch/x86/kernel/cpu/mcheck/therm_throt.c

@@ -353,7 +353,6 @@ static void notify_thresholds(__u64 msr_val)
 static void intel_thermal_interrupt(void)
 {
 	__u64 msr_val;
-	struct cpuinfo_x86 *c = &cpu_data(smp_processor_id());
 
 	rdmsrl(MSR_IA32_THERM_STATUS, msr_val);
 
@@ -365,19 +364,19 @@ static void intel_thermal_interrupt(void)
 				CORE_LEVEL) != 0)
 		mce_log_therm_throt_event(CORE_THROTTLED | msr_val);
 
-	if (cpu_has(c, X86_FEATURE_PLN))
+	if (this_cpu_has(X86_FEATURE_PLN))
 		if (therm_throt_process(msr_val & THERM_STATUS_POWER_LIMIT,
 					POWER_LIMIT_EVENT,
 					CORE_LEVEL) != 0)
 			mce_log_therm_throt_event(CORE_POWER_LIMIT | msr_val);
 
-	if (cpu_has(c, X86_FEATURE_PTS)) {
+	if (this_cpu_has(X86_FEATURE_PTS)) {
 		rdmsrl(MSR_IA32_PACKAGE_THERM_STATUS, msr_val);
 		if (therm_throt_process(msr_val & PACKAGE_THERM_STATUS_PROCHOT,
 					THERMAL_THROTTLING_EVENT,
 					PACKAGE_LEVEL) != 0)
 			mce_log_therm_throt_event(PACKAGE_THROTTLED | msr_val);
-		if (cpu_has(c, X86_FEATURE_PLN))
+		if (this_cpu_has(X86_FEATURE_PLN))
 			if (therm_throt_process(msr_val &
 					PACKAGE_THERM_STATUS_POWER_LIMIT,
 					POWER_LIMIT_EVENT,

arch/x86/kernel/mpparse.c

@@ -715,7 +715,7 @@ static void __init check_irq_src(struct mpc_intsrc *m, int *nr_m_spare)
 	}
 }
 
-static int
+static int __init
 check_slot(unsigned long mpc_new_phys, unsigned long mpc_new_length, int count)
 {
 	if (!mpc_new_phys || count <= mpc_new_length) {

arch/x86/kernel/process.c

@@ -449,7 +449,7 @@ EXPORT_SYMBOL_GPL(cpu_idle_wait);
 void mwait_idle_with_hints(unsigned long ax, unsigned long cx)
 {
 	if (!need_resched()) {
-		if (cpu_has(__this_cpu_ptr(&cpu_info), X86_FEATURE_CLFLUSH_MONITOR))
+		if (this_cpu_has(X86_FEATURE_CLFLUSH_MONITOR))
 			clflush((void *)&current_thread_info()->flags);
 
 		__monitor((void *)&current_thread_info()->flags, 0, 0);
@@ -465,7 +465,7 @@ static void mwait_idle(void)
 	if (!need_resched()) {
 		trace_power_start(POWER_CSTATE, 1, smp_processor_id());
 		trace_cpu_idle(1, smp_processor_id());
-		if (cpu_has(__this_cpu_ptr(&cpu_info), X86_FEATURE_CLFLUSH_MONITOR))
+		if (this_cpu_has(X86_FEATURE_CLFLUSH_MONITOR))
 			clflush((void *)&current_thread_info()->flags);
 
 		__monitor((void *)&current_thread_info()->flags, 0, 0);

arch/x86/kernel/smpboot.c

@@ -1332,9 +1332,9 @@ static inline void mwait_play_dead(void)
 	void *mwait_ptr;
 	struct cpuinfo_x86 *c = __this_cpu_ptr(&cpu_info);
 
-	if (!(cpu_has(c, X86_FEATURE_MWAIT) && mwait_usable(c)))
+	if (!this_cpu_has(X86_FEATURE_MWAIT) && mwait_usable(c))
 		return;
-	if (!cpu_has(__this_cpu_ptr(&cpu_info), X86_FEATURE_CLFLSH))
+	if (!this_cpu_has(X86_FEATURE_CLFLSH))
 		return;
 	if (__this_cpu_read(cpu_info.cpuid_level) < CPUID_MWAIT_LEAF)
 		return;

arch/x86/mm/Makefile

@@ -23,8 +23,8 @@ mmiotrace-y			:= kmmio.o pf_in.o mmio-mod.o
 obj-$(CONFIG_MMIOTRACE_TEST)	+= testmmiotrace.o
 
 obj-$(CONFIG_NUMA)		+= numa.o numa_$(BITS).o
-obj-$(CONFIG_AMD_NUMA)		+= amdtopology_64.o
-obj-$(CONFIG_ACPI_NUMA)		+= srat_$(BITS).o
+obj-$(CONFIG_AMD_NUMA)		+= amdtopology.o
+obj-$(CONFIG_ACPI_NUMA)		+= srat.o
 obj-$(CONFIG_NUMA_EMU)		+= numa_emulation.o
 
 obj-$(CONFIG_HAVE_MEMBLOCK)		+= memblock.o

arch/x86/mm/amdtopology_64.c → arch/x86/mm/amdtopology.c

@@ -12,6 +12,7 @@
 #include <linux/module.h>
 #include <linux/nodemask.h>
 #include <linux/memblock.h>
+#include <linux/bootmem.h>
 
 #include <asm/io.h>
 #include <linux/pci_ids.h>
@@ -69,10 +70,10 @@ static __init void early_get_boot_cpu_id(void)
 
 int __init amd_numa_init(void)
 {
-	unsigned long start = PFN_PHYS(0);
-	unsigned long end = PFN_PHYS(max_pfn);
+	u64 start = PFN_PHYS(0);
+	u64 end = PFN_PHYS(max_pfn);
 	unsigned numnodes;
-	unsigned long prevbase;
+	u64 prevbase;
 	int i, j, nb;
 	u32 nodeid, reg;
 	unsigned int bits, cores, apicid_base;
@@ -95,7 +96,7 @@ int __init amd_numa_init(void)
 
 	prevbase = 0;
 	for (i = 0; i < 8; i++) {
-		unsigned long base, limit;
+		u64 base, limit;
 
 		base = read_pci_config(0, nb, 1, 0x40 + i*8);
 		limit = read_pci_config(0, nb, 1, 0x44 + i*8);
@@ -107,18 +108,18 @@ int __init amd_numa_init(void)
 			continue;
 		}
 		if (nodeid >= numnodes) {
-			pr_info("Ignoring excess node %d (%lx:%lx)\n", nodeid,
+			pr_info("Ignoring excess node %d (%Lx:%Lx)\n", nodeid,
 				base, limit);
 			continue;
 		}
 
 		if (!limit) {
-			pr_info("Skipping node entry %d (base %lx)\n",
+			pr_info("Skipping node entry %d (base %Lx)\n",
 				i, base);
 			continue;
 		}
 		if ((base >> 8) & 3 || (limit >> 8) & 3) {
-			pr_err("Node %d using interleaving mode %lx/%lx\n",
+			pr_err("Node %d using interleaving mode %Lx/%Lx\n",
 			       nodeid, (base >> 8) & 3, (limit >> 8) & 3);
 			return -EINVAL;
 		}
@@ -150,19 +151,19 @@ int __init amd_numa_init(void)
 			continue;
 		}
 		if (limit < base) {
-			pr_err("Node %d bogus settings %lx-%lx.\n",
+			pr_err("Node %d bogus settings %Lx-%Lx.\n",
 			       nodeid, base, limit);
 			continue;
 		}
 
 		/* Could sort here, but pun for now. Should not happen anyroads. */
 		if (prevbase > base) {
-			pr_err("Node map not sorted %lx,%lx\n",
+			pr_err("Node map not sorted %Lx,%Lx\n",
 			       prevbase, base);
 			return -EINVAL;
 		}
 
-		pr_info("Node %d MemBase %016lx Limit %016lx\n",
+		pr_info("Node %d MemBase %016Lx Limit %016Lx\n",
 			nodeid, base, limit);
 
 		prevbase = base;

arch/x86/mm/init_32.c

@@ -678,8 +678,10 @@ static void __init zone_sizes_init(void)
 {
 	unsigned long max_zone_pfns[MAX_NR_ZONES];
 	memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
+#ifdef CONFIG_ZONE_DMA
 	max_zone_pfns[ZONE_DMA] =
 		virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
+#endif
 	max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
 #ifdef CONFIG_HIGHMEM
 	max_zone_pfns[ZONE_HIGHMEM] = highend_pfn;
@@ -716,6 +718,7 @@ void __init paging_init(void)
 	 * NOTE: at this point the bootmem allocator is fully available.
 	 */
 	olpc_dt_build_devicetree();
+	sparse_memory_present_with_active_regions(MAX_NUMNODES);
 	sparse_init();
 	zone_sizes_init();
 }

arch/x86/mm/init_64.c

@@ -616,7 +616,9 @@ void __init paging_init(void)
 	unsigned long max_zone_pfns[MAX_NR_ZONES];
 
 	memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
+#ifdef CONFIG_ZONE_DMA
 	max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN;
+#endif
 	max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;
 	max_zone_pfns[ZONE_NORMAL] = max_pfn;
 
@@ -679,14 +681,6 @@ int arch_add_memory(int nid, u64 start, u64 size)
 }
 EXPORT_SYMBOL_GPL(arch_add_memory);
 
-#if !defined(CONFIG_ACPI_NUMA) && defined(CONFIG_NUMA)
-int memory_add_physaddr_to_nid(u64 start)
-{
-	return 0;
-}
-EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
-#endif
-
 #endif /* CONFIG_MEMORY_HOTPLUG */
 
 static struct kcore_list kcore_vsyscall;

arch/x86/mm/ioremap.c

@@ -90,13 +90,6 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
 	if (is_ISA_range(phys_addr, last_addr))
 		return (__force void __iomem *)phys_to_virt(phys_addr);
 
-	/*
-	 * Check if the request spans more than any BAR in the iomem resource
-	 * tree.
-	 */
-	WARN_ONCE(iomem_map_sanity_check(phys_addr, size),
-		  KERN_INFO "Info: mapping multiple BARs. Your kernel is fine.");
-
 	/*
 	 * Don't allow anybody to remap normal RAM that we're using..
 	 */
@@ -170,6 +163,13 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
 	ret_addr = (void __iomem *) (vaddr + offset);
 	mmiotrace_ioremap(unaligned_phys_addr, unaligned_size, ret_addr);
 
+	/*
+	 * Check if the request spans more than any BAR in the iomem resource
+	 * tree.
+	 */
+	WARN_ONCE(iomem_map_sanity_check(unaligned_phys_addr, unaligned_size),
+		  KERN_INFO "Info: mapping multiple BARs. Your kernel is fine.");
+
 	return ret_addr;
 err_free_area:
 	free_vm_area(area);

arch/x86/mm/numa_emulation.c

@@ -5,6 +5,7 @@
 #include <linux/errno.h>
 #include <linux/topology.h>
 #include <linux/memblock.h>
+#include <linux/bootmem.h>
 #include <asm/dma.h>
 
 #include "numa_internal.h"
@@ -84,7 +85,13 @@ static int __init split_nodes_interleave(struct numa_meminfo *ei,
 		nr_nodes = MAX_NUMNODES;
 	}
 
-	size = (max_addr - addr - memblock_x86_hole_size(addr, max_addr)) / nr_nodes;
+	/*
+	 * Calculate target node size.  x86_32 freaks on __udivdi3() so do
+	 * the division in ulong number of pages and convert back.
+	 */
+	size = max_addr - addr - memblock_x86_hole_size(addr, max_addr);
+	size = PFN_PHYS((unsigned long)(size >> PAGE_SHIFT) / nr_nodes);
+
 	/*
 	 * Calculate the number of big nodes that can be allocated as a result
 	 * of consolidating the remainder.
@@ -226,7 +233,7 @@ static int __init split_nodes_size_interleave(struct numa_meminfo *ei,
 	 */
 	while (nodes_weight(physnode_mask)) {
 		for_each_node_mask(i, physnode_mask) {
-			u64 dma32_end = MAX_DMA32_PFN << PAGE_SHIFT;
+			u64 dma32_end = PFN_PHYS(MAX_DMA32_PFN);
 			u64 start, limit, end;
 			int phys_blk;
 
@@ -298,7 +305,7 @@ void __init numa_emulation(struct numa_meminfo *numa_meminfo, int numa_dist_cnt)
 {
 	static struct numa_meminfo ei __initdata;
 	static struct numa_meminfo pi __initdata;
-	const u64 max_addr = max_pfn << PAGE_SHIFT;
+	const u64 max_addr = PFN_PHYS(max_pfn);
 	u8 *phys_dist = NULL;
 	size_t phys_size = numa_dist_cnt * numa_dist_cnt * sizeof(phys_dist[0]);
 	int max_emu_nid, dfl_phys_nid;
@@ -342,8 +349,7 @@ void __init numa_emulation(struct numa_meminfo *numa_meminfo, int numa_dist_cnt)
 	if (numa_dist_cnt) {
 		u64 phys;
 
-		phys = memblock_find_in_range(0,
-					      (u64)max_pfn_mapped << PAGE_SHIFT,
+		phys = memblock_find_in_range(0, PFN_PHYS(max_pfn_mapped),
 					      phys_size, PAGE_SIZE);
 		if (phys == MEMBLOCK_ERROR) {
 			pr_warning("NUMA: Warning: can't allocate copy of distance table, disabling emulation\n");

arch/x86/mm/numa_internal.h

@@ -19,6 +19,14 @@ void __init numa_remove_memblk_from(int idx, struct numa_meminfo *mi);
 int __init numa_cleanup_meminfo(struct numa_meminfo *mi);
 void __init numa_reset_distance(void);
 
+void __init x86_numa_init(void);
+
+#ifdef CONFIG_X86_64
+static inline void init_alloc_remap(int nid, u64 start, u64 end)	{ }
+#else
+void __init init_alloc_remap(int nid, u64 start, u64 end);
+#endif
+
 #ifdef CONFIG_NUMA_EMU
 void __init numa_emulation(struct numa_meminfo *numa_meminfo,
 			   int numa_dist_cnt);

arch/x86/mm/srat_64.c → arch/x86/mm/srat.c

@@ -26,8 +26,6 @@
 
 int acpi_numa __initdata;
 
-static struct bootnode nodes_add[MAX_NUMNODES];
-
 static __init int setup_node(int pxm)
 {
 	return acpi_map_pxm_to_node(pxm);
@@ -37,7 +35,6 @@ static __init void bad_srat(void)
 {
 	printk(KERN_ERR "SRAT: SRAT not used.\n");
 	acpi_numa = -1;
-	memset(nodes_add, 0, sizeof(nodes_add));
 }
 
 static __init inline int srat_disabled(void)
@@ -131,73 +128,17 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
 	       pxm, apic_id, node);
 }
 
-#ifdef CONFIG_MEMORY_HOTPLUG_SPARSE
+#ifdef CONFIG_MEMORY_HOTPLUG
 static inline int save_add_info(void) {return 1;}
 #else
 static inline int save_add_info(void) {return 0;}
 #endif
-/*
- * Update nodes_add[]
- * This code supports one contiguous hot add area per node
- */
-static void __init
-update_nodes_add(int node, unsigned long start, unsigned long end)
-{
-	unsigned long s_pfn = start >> PAGE_SHIFT;
-	unsigned long e_pfn = end >> PAGE_SHIFT;
-	int changed = 0;
-	struct bootnode *nd = &nodes_add[node];
-
-	/* I had some trouble with strange memory hotadd regions breaking
-	   the boot. Be very strict here and reject anything unexpected.
-	   If you want working memory hotadd write correct SRATs.
-
-	   The node size check is a basic sanity check to guard against
-	   mistakes */
-	if ((signed long)(end - start) < NODE_MIN_SIZE) {
-		printk(KERN_ERR "SRAT: Hotplug area too small\n");
-		return;
-	}
-
-	/* This check might be a bit too strict, but I'm keeping it for now. */
-	if (absent_pages_in_range(s_pfn, e_pfn) != e_pfn - s_pfn) {
-		printk(KERN_ERR
-			"SRAT: Hotplug area %lu -> %lu has existing memory\n",
-			s_pfn, e_pfn);
-		return;
-	}
-
-	/* Looks good */
-
-	if (nd->start == nd->end) {
-		nd->start = start;
-		nd->end = end;
-		changed = 1;
-	} else {
-		if (nd->start == end) {
-			nd->start = start;
-			changed = 1;
-		}
-		if (nd->end == start) {
-			nd->end = end;
-			changed = 1;
-		}
-		if (!changed)
-			printk(KERN_ERR "SRAT: Hotplug zone not continuous. Partly ignored\n");
-	}
-
-	if (changed) {
-		node_set(node, numa_nodes_parsed);
-		printk(KERN_INFO "SRAT: hot plug zone found %Lx - %Lx\n",
-				 nd->start, nd->end);
-	}
-}
 
 /* Callback for parsing of the Proximity Domain <-> Memory Area mappings */
 void __init
 acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 {
-	unsigned long start, end;
+	u64 start, end;
 	int node, pxm;
 
 	if (srat_disabled())
@@ -226,11 +167,8 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 		return;
 	}
 
-	printk(KERN_INFO "SRAT: Node %u PXM %u %lx-%lx\n", node, pxm,
+	printk(KERN_INFO "SRAT: Node %u PXM %u %Lx-%Lx\n", node, pxm,
 	       start, end);
-
-	if (ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE)
-		update_nodes_add(node, start, end);
 }
 
 void __init acpi_numa_arch_fixup(void) {}
@@ -244,17 +182,3 @@ int __init x86_acpi_numa_init(void)
 		return ret;
 	return srat_disabled() ? -EINVAL : 0;
 }
-
-#if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) || defined(CONFIG_ACPI_HOTPLUG_MEMORY)
-int memory_add_physaddr_to_nid(u64 start)
-{
-	int i, ret = 0;
-
-	for_each_node(i)
-		if (nodes_add[i].start <= start && nodes_add[i].end > start)
-			ret = i;
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
-#endif

arch/x86/mm/srat_32.c

-/*
- * Some of the code in this file has been gleaned from the 64 bit 
- * discontigmem support code base.
- *
- * Copyright (C) 2002, IBM Corp.
- *
- * All rights reserved.          
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT.  See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Send feedback to Pat Gaughen <gone@us.ibm.com>
- */
-#include <linux/mm.h>
-#include <linux/bootmem.h>
-#include <linux/memblock.h>
-#include <linux/mmzone.h>
-#include <linux/acpi.h>
-#include <linux/nodemask.h>
-#include <asm/srat.h>
-#include <asm/topology.h>
-#include <asm/smp.h>
-#include <asm/e820.h>
-
-/*
- * proximity macros and definitions
- */
-#define NODE_ARRAY_INDEX(x)	((x) / 8)	/* 8 bits/char */
-#define NODE_ARRAY_OFFSET(x)	((x) % 8)	/* 8 bits/char */
-#define BMAP_SET(bmap, bit)	((bmap)[NODE_ARRAY_INDEX(bit)] |= 1 << NODE_ARRAY_OFFSET(bit))
-#define BMAP_TEST(bmap, bit)	((bmap)[NODE_ARRAY_INDEX(bit)] & (1 << NODE_ARRAY_OFFSET(bit)))
-/* bitmap length; _PXM is at most 255 */
-#define PXM_BITMAP_LEN (MAX_PXM_DOMAINS / 8) 
-static u8 __initdata pxm_bitmap[PXM_BITMAP_LEN];	/* bitmap of proximity domains */
-
-#define MAX_CHUNKS_PER_NODE	3
-#define MAXCHUNKS		(MAX_CHUNKS_PER_NODE * MAX_NUMNODES)
-struct node_memory_chunk_s {
-	unsigned long	start_pfn;
-	unsigned long	end_pfn;
-	u8	pxm;		// proximity domain of node
-	u8	nid;		// which cnode contains this chunk?
-	u8	bank;		// which mem bank on this node
-};
-static struct node_memory_chunk_s __initdata node_memory_chunk[MAXCHUNKS];
-
-static int __initdata num_memory_chunks; /* total number of memory chunks */
-static u8 __initdata apicid_to_pxm[MAX_LOCAL_APIC];
-
-int acpi_numa __initdata;
-
-static __init void bad_srat(void)
-{
-        printk(KERN_ERR "SRAT: SRAT not used.\n");
-        acpi_numa = -1;
-	num_memory_chunks = 0;
-}
-
-static __init inline int srat_disabled(void)
-{
-	return numa_off || acpi_numa < 0;
-}
-
-/* Identify CPU proximity domains */
-void __init
-acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *cpu_affinity)
-{
-	if (srat_disabled())
-		return;
-	if (cpu_affinity->header.length !=
-	     sizeof(struct acpi_srat_cpu_affinity)) {
-		bad_srat();
-		return;
-	}
-
-	if ((cpu_affinity->flags & ACPI_SRAT_CPU_ENABLED) == 0)
-		return;		/* empty entry */
-
-	/* mark this node as "seen" in node bitmap */
-	BMAP_SET(pxm_bitmap, cpu_affinity->proximity_domain_lo);
-
-	/* don't need to check apic_id here, because it is always 8 bits */
-	apicid_to_pxm[cpu_affinity->apic_id] = cpu_affinity->proximity_domain_lo;
-
-	printk(KERN_DEBUG "CPU %02x in proximity domain %02x\n",
-		cpu_affinity->apic_id, cpu_affinity->proximity_domain_lo);
-}
-
-/*
- * Identify memory proximity domains and hot-remove capabilities.
- * Fill node memory chunk list structure.
- */
-void __init
-acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *memory_affinity)
-{
-	unsigned long long paddr, size;
-	unsigned long start_pfn, end_pfn;
-	u8 pxm;
-	struct node_memory_chunk_s *p, *q, *pend;
-
-	if (srat_disabled())
-		return;
-	if (memory_affinity->header.length !=
-	     sizeof(struct acpi_srat_mem_affinity)) {
-		bad_srat();
-		return;
-	}
-
-	if ((memory_affinity->flags & ACPI_SRAT_MEM_ENABLED) == 0)
-		return;		/* empty entry */
-
-	pxm = memory_affinity->proximity_domain & 0xff;
-
-	/* mark this node as "seen" in node bitmap */
-	BMAP_SET(pxm_bitmap, pxm);
-
-	/* calculate info for memory chunk structure */
-	paddr = memory_affinity->base_address;
-	size = memory_affinity->length;
-
-	start_pfn = paddr >> PAGE_SHIFT;
-	end_pfn = (paddr + size) >> PAGE_SHIFT;
-
-
-	if (num_memory_chunks >= MAXCHUNKS) {
-		printk(KERN_WARNING "Too many mem chunks in SRAT."
-			" Ignoring %lld MBytes at %llx\n",
-			size/(1024*1024), paddr);
-		return;
-	}
-
-	/* Insertion sort based on base address */
-	pend = &node_memory_chunk[num_memory_chunks];
-	for (p = &node_memory_chunk[0]; p < pend; p++) {
-		if (start_pfn < p->start_pfn)
-			break;
-	}
-	if (p < pend) {
-		for (q = pend; q >= p; q--)
-			*(q + 1) = *q;
-	}
-	p->start_pfn = start_pfn;
-	p->end_pfn = end_pfn;
-	p->pxm = pxm;
-
-	num_memory_chunks++;
-
-	printk(KERN_DEBUG "Memory range %08lx to %08lx"
-			  " in proximity domain %02x %s\n",
-		start_pfn, end_pfn,
-		pxm,
-		((memory_affinity->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) ?
-		 "enabled and removable" : "enabled" ) );
-}
-
-/* Callback for SLIT parsing */
-void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
-{
-}
-
-void acpi_numa_arch_fixup(void)
-{
-}
-/*
- * The SRAT table always lists ascending addresses, so can always
- * assume that the first "start" address that you see is the real
- * start of the node, and that the current "end" address is after
- * the previous one.
- */
-static __init int node_read_chunk(int nid, struct node_memory_chunk_s *memory_chunk)
-{
-	/*
-	 * Only add present memory as told by the e820.
-	 * There is no guarantee from the SRAT that the memory it
-	 * enumerates is present at boot time because it represents
-	 * *possible* memory hotplug areas the same as normal RAM.
-	 */
-	if (memory_chunk->start_pfn >= max_pfn) {
-		printk(KERN_INFO "Ignoring SRAT pfns: %08lx - %08lx\n",
-			memory_chunk->start_pfn, memory_chunk->end_pfn);
-		return -1;
-	}
-	if (memory_chunk->nid != nid)
-		return -1;
-
-	if (!node_has_online_mem(nid))
-		node_start_pfn[nid] = memory_chunk->start_pfn;
-
-	if (node_start_pfn[nid] > memory_chunk->start_pfn)
-		node_start_pfn[nid] = memory_chunk->start_pfn;
-
-	if (node_end_pfn[nid] < memory_chunk->end_pfn)
-		node_end_pfn[nid] = memory_chunk->end_pfn;
-
-	return 0;
-}
-
-int __init get_memcfg_from_srat(void)
-{
-	int i, j, nid;
-
-	if (srat_disabled())
-		goto out_fail;
-
-	if (acpi_numa_init() < 0)
-		goto out_fail;
-
-	if (num_memory_chunks == 0) {
-		printk(KERN_DEBUG
-			 "could not find any ACPI SRAT memory areas.\n");
-		goto out_fail;
-	}
-
-	/* Calculate total number of nodes in system from PXM bitmap and create
-	 * a set of sequential node IDs starting at zero.  (ACPI doesn't seem
-	 * to specify the range of _PXM values.)
-	 */
-	/*
-	 * MCD - we no longer HAVE to number nodes sequentially.  PXM domain
-	 * numbers could go as high as 256, and MAX_NUMNODES for i386 is typically
-	 * 32, so we will continue numbering them in this manner until MAX_NUMNODES
-	 * approaches MAX_PXM_DOMAINS for i386.
-	 */
-	nodes_clear(node_online_map);
-	for (i = 0; i < MAX_PXM_DOMAINS; i++) {
-		if (BMAP_TEST(pxm_bitmap, i)) {
-			int nid = acpi_map_pxm_to_node(i);
-			node_set_online(nid);
-		}
-	}
-	BUG_ON(num_online_nodes() == 0);
-
-	/* set cnode id in memory chunk structure */
-	for (i = 0; i < num_memory_chunks; i++)
-		node_memory_chunk[i].nid = pxm_to_node(node_memory_chunk[i].pxm);
-
-	printk(KERN_DEBUG "pxm bitmap: ");
-	for (i = 0; i < sizeof(pxm_bitmap); i++) {
-		printk(KERN_CONT "%02x ", pxm_bitmap[i]);
-	}
-	printk(KERN_CONT "\n");
-	printk(KERN_DEBUG "Number of logical nodes in system = %d\n",
-			 num_online_nodes());
-	printk(KERN_DEBUG "Number of memory chunks in system = %d\n",
-			 num_memory_chunks);
-
-	for (i = 0; i < MAX_LOCAL_APIC; i++)
-		set_apicid_to_node(i, pxm_to_node(apicid_to_pxm[i]));
-
-	for (j = 0; j < num_memory_chunks; j++){
-		struct node_memory_chunk_s * chunk = &node_memory_chunk[j];
-		printk(KERN_DEBUG
-			"chunk %d nid %d start_pfn %08lx end_pfn %08lx\n",
-		       j, chunk->nid, chunk->start_pfn, chunk->end_pfn);
-		if (node_read_chunk(chunk->nid, chunk))
-			continue;
-
-		memblock_x86_register_active_regions(chunk->nid, chunk->start_pfn,
-					     min(chunk->end_pfn, max_pfn));
-	}
-	/* for out of order entries in SRAT */
-	sort_node_map();
-
-	for_each_online_node(nid) {
-		unsigned long start = node_start_pfn[nid];
-		unsigned long end = min(node_end_pfn[nid], max_pfn);
-
-		memory_present(nid, start, end);
-		node_remap_size[nid] = node_memmap_size_bytes(nid, start, end);
-	}
-	return 1;
-out_fail:
-	printk(KERN_DEBUG "failed to get NUMA memory information from SRAT"
-			" table\n");
-	return 0;
-}

drivers/acpi/processor_throttling.c

@@ -710,20 +710,14 @@ static int acpi_processor_get_throttling_fadt(struct acpi_processor *pr)
 }
 
 #ifdef CONFIG_X86
-static int acpi_throttling_rdmsr(struct acpi_processor *pr,
-					u64 *value)
+static int acpi_throttling_rdmsr(u64 *value)
 {
-	struct cpuinfo_x86 *c;
 	u64 msr_high, msr_low;
-	unsigned int cpu;
 	u64 msr = 0;
 	int ret = -1;
 
-	cpu = pr->id;
-	c = &cpu_data(cpu);
-
-	if ((c->x86_vendor != X86_VENDOR_INTEL) ||
-		!cpu_has(c, X86_FEATURE_ACPI)) {
+	if ((this_cpu_read(cpu_info.x86_vendor) != X86_VENDOR_INTEL) ||
+		!this_cpu_has(X86_FEATURE_ACPI)) {
 		printk(KERN_ERR PREFIX
 			"HARDWARE addr space,NOT supported yet\n");
 	} else {
@@ -738,18 +732,13 @@ static int acpi_throttling_rdmsr(struct acpi_processor *pr,
 	return ret;
 }
 
-static int acpi_throttling_wrmsr(struct acpi_processor *pr, u64 value)
+static int acpi_throttling_wrmsr(u64 value)
 {
-	struct cpuinfo_x86 *c;
-	unsigned int cpu;
 	int ret = -1;
 	u64 msr;
 
-	cpu = pr->id;
-	c = &cpu_data(cpu);
-
-	if ((c->x86_vendor != X86_VENDOR_INTEL) ||
-		!cpu_has(c, X86_FEATURE_ACPI)) {
+	if ((this_cpu_read(cpu_info.x86_vendor) != X86_VENDOR_INTEL) ||
+		!this_cpu_has(X86_FEATURE_ACPI)) {
 		printk(KERN_ERR PREFIX
 			"HARDWARE addr space,NOT supported yet\n");
 	} else {
@@ -761,15 +750,14 @@ static int acpi_throttling_wrmsr(struct acpi_processor *pr, u64 value)
 	return ret;
 }
 #else
-static int acpi_throttling_rdmsr(struct acpi_processor *pr,
-				u64 *value)
+static int acpi_throttling_rdmsr(u64 *value)
 {
 	printk(KERN_ERR PREFIX
 		"HARDWARE addr space,NOT supported yet\n");
 	return -1;
 }
 
-static int acpi_throttling_wrmsr(struct acpi_processor *pr, u64 value)
+static int acpi_throttling_wrmsr(u64 value)
 {
 	printk(KERN_ERR PREFIX
 		"HARDWARE addr space,NOT supported yet\n");
@@ -801,7 +789,7 @@ static int acpi_read_throttling_status(struct acpi_processor *pr,
 		ret = 0;
 		break;
 	case ACPI_ADR_SPACE_FIXED_HARDWARE:
-		ret = acpi_throttling_rdmsr(pr, value);
+		ret = acpi_throttling_rdmsr(value);
 		break;
 	default:
 		printk(KERN_ERR PREFIX "Unknown addr space %d\n",
@@ -834,7 +822,7 @@ static int acpi_write_throttling_state(struct acpi_processor *pr,
 		ret = 0;
 		break;
 	case ACPI_ADR_SPACE_FIXED_HARDWARE:
-		ret = acpi_throttling_wrmsr(pr, value);
+		ret = acpi_throttling_wrmsr(value);
 		break;
 	default:
 		printk(KERN_ERR PREFIX "Unknown addr space %d\n",