[deliverable/linux.git] / arch / x86 / kernel / setup_percpu.c

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/bootmem.h>
#include <linux/percpu.h>
#include <linux/kexec.h>
#include <linux/crash_dump.h>
#include <linux/smp.h>
#include <linux/topology.h>
#include <linux/pfn.h>
#include <asm/sections.h>
#include <asm/processor.h>
#include <asm/setup.h>
#include <asm/mpspec.h>
#include <asm/apicdef.h>
#include <asm/highmem.h>
#include <asm/proto.h>
#include <asm/cpumask.h>
#include <asm/cpu.h>
#include <asm/stackprotector.h>

DEFINE_PER_CPU_READ_MOSTLY(int, cpu_number);
EXPORT_PER_CPU_SYMBOL(cpu_number);

#ifdef CONFIG_X86_64
#define BOOT_PERCPU_OFFSET ((unsigned long)__per_cpu_load)
#else
#define BOOT_PERCPU_OFFSET 0
#endif

DEFINE_PER_CPU_READ_MOSTLY(unsigned long, this_cpu_off) = BOOT_PERCPU_OFFSET;
EXPORT_PER_CPU_SYMBOL(this_cpu_off);

unsigned long __per_cpu_offset[NR_CPUS] __ro_after_init = {
	[0 ... NR_CPUS-1] = BOOT_PERCPU_OFFSET,
};
EXPORT_SYMBOL(__per_cpu_offset);

/*
 * On x86_64 symbols referenced from code should be reachable using
 * 32bit relocations.  Reserve space for static percpu variables in
 * modules so that they are always served from the first chunk which
 * is located at the percpu segment base.  On x86_32, anything can
 * address anywhere.  No need to reserve space in the first chunk.
 */
#ifdef CONFIG_X86_64
#define PERCPU_FIRST_CHUNK_RESERVE	PERCPU_MODULE_RESERVE
#else
#define PERCPU_FIRST_CHUNK_RESERVE	0
#endif

#ifdef CONFIG_X86_32
/**
 * pcpu_need_numa - determine percpu allocation needs to consider NUMA
 *
 * If NUMA is not configured or there is only one NUMA node available,
 * there is no reason to consider NUMA.  This function determines
 * whether percpu allocation should consider NUMA or not.
 *
 * RETURNS:
 * true if NUMA should be considered; otherwise, false.
 */
static bool __init pcpu_need_numa(void)
{
#ifdef CONFIG_NEED_MULTIPLE_NODES
	pg_data_t *last = NULL;
	unsigned int cpu;

	for_each_possible_cpu(cpu) {
		int node = early_cpu_to_node(cpu);

		if (node_online(node) && NODE_DATA(node) &&
		    last && last != NODE_DATA(node))
			return true;

		last = NODE_DATA(node);
	}
#endif
	return false;
}
#endif

/**
 * pcpu_alloc_bootmem - NUMA friendly alloc_bootmem wrapper for percpu
 * @cpu: cpu to allocate for
 * @size: size allocation in bytes
 * @align: alignment
 *
 * Allocate @size bytes aligned at @align for cpu @cpu.  This wrapper
 * does the right thing for NUMA regardless of the current
 * configuration.
 *
 * RETURNS:
 * Pointer to the allocated area on success, NULL on failure.
 */
static void * __init pcpu_alloc_bootmem(unsigned int cpu, unsigned long size,
					unsigned long align)
{
	const unsigned long goal = __pa(MAX_DMA_ADDRESS);
#ifdef CONFIG_NEED_MULTIPLE_NODES
	int node = early_cpu_to_node(cpu);
	void *ptr;

	if (!node_online(node) || !NODE_DATA(node)) {
		ptr = __alloc_bootmem_nopanic(size, align, goal);
		pr_info("cpu %d has no node %d or node-local memory\n",
			cpu, node);
		pr_debug("per cpu data for cpu%d %lu bytes at %016lx\n",
			 cpu, size, __pa(ptr));
	} else {
		ptr = __alloc_bootmem_node_nopanic(NODE_DATA(node),
						   size, align, goal);
		pr_debug("per cpu data for cpu%d %lu bytes on node%d at %016lx\n",
			 cpu, size, node, __pa(ptr));
	}
	return ptr;
#else
	return __alloc_bootmem_nopanic(size, align, goal);
#endif
}

/*
 * Helpers for first chunk memory allocation
 */
static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size, size_t align)
{
	return pcpu_alloc_bootmem(cpu, size, align);
}

static void __init pcpu_fc_free(void *ptr, size_t size)
{
	free_bootmem(__pa(ptr), size);
}

static int __init pcpu_cpu_distance(unsigned int from, unsigned int to)
{
#ifdef CONFIG_NEED_MULTIPLE_NODES
	if (early_cpu_to_node(from) == early_cpu_to_node(to))
		return LOCAL_DISTANCE;
	else
		return REMOTE_DISTANCE;
#else
	return LOCAL_DISTANCE;
#endif
}

static void __init pcpup_populate_pte(unsigned long addr)
{
	populate_extra_pte(addr);
}

static inline void setup_percpu_segment(int cpu)
{
#ifdef CONFIG_X86_32
	struct desc_struct gdt;

	pack_descriptor(&gdt, per_cpu_offset(cpu), 0xFFFFF,
			0x2 | DESCTYPE_S, 0x8);
	gdt.s = 1;
	write_gdt_entry(get_cpu_gdt_table(cpu),
			GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S);
#endif
}

void __init setup_per_cpu_areas(void)
{
	unsigned int cpu;
	unsigned long delta;
	int rc;

	pr_info("NR_CPUS:%d nr_cpumask_bits:%d nr_cpu_ids:%d nr_node_ids:%d\n",
		NR_CPUS, nr_cpumask_bits, nr_cpu_ids, nr_node_ids);

	/*
	 * Allocate percpu area.  Embedding allocator is our favorite;
	 * however, on NUMA configurations, it can result in very
	 * sparse unit mapping and vmalloc area isn't spacious enough
	 * on 32bit.  Use page in that case.
	 */
#ifdef CONFIG_X86_32
	if (pcpu_chosen_fc == PCPU_FC_AUTO && pcpu_need_numa())
		pcpu_chosen_fc = PCPU_FC_PAGE;
#endif
	rc = -EINVAL;
	if (pcpu_chosen_fc != PCPU_FC_PAGE) {
		const size_t dyn_size = PERCPU_MODULE_RESERVE +
			PERCPU_DYNAMIC_RESERVE - PERCPU_FIRST_CHUNK_RESERVE;
		size_t atom_size;

		/*
		 * On 64bit, use PMD_SIZE for atom_size so that embedded
		 * percpu areas are aligned to PMD.  This, in the future,
		 * can also allow using PMD mappings in vmalloc area.  Use
		 * PAGE_SIZE on 32bit as vmalloc space is highly contended
		 * and large vmalloc area allocs can easily fail.
		 */
#ifdef CONFIG_X86_64
		atom_size = PMD_SIZE;
#else
		atom_size = PAGE_SIZE;
#endif
		rc = pcpu_embed_first_chunk(PERCPU_FIRST_CHUNK_RESERVE,
					    dyn_size, atom_size,
					    pcpu_cpu_distance,
					    pcpu_fc_alloc, pcpu_fc_free);
		if (rc < 0)
			pr_warning("%s allocator failed (%d), falling back to page size\n",
				   pcpu_fc_names[pcpu_chosen_fc], rc);
	}
	if (rc < 0)
		rc = pcpu_page_first_chunk(PERCPU_FIRST_CHUNK_RESERVE,
					   pcpu_fc_alloc, pcpu_fc_free,
					   pcpup_populate_pte);
	if (rc < 0)
		panic("cannot initialize percpu area (err=%d)", rc);

	/* alrighty, percpu areas up and running */
	delta = (unsigned long)pcpu_base_addr - (unsigned long)__per_cpu_start;
	for_each_possible_cpu(cpu) {
		per_cpu_offset(cpu) = delta + pcpu_unit_offsets[cpu];
		per_cpu(this_cpu_off, cpu) = per_cpu_offset(cpu);
		per_cpu(cpu_number, cpu) = cpu;
		setup_percpu_segment(cpu);
		setup_stack_canary_segment(cpu);
		/*
		 * Copy data used in early init routines from the
		 * initial arrays to the per cpu data areas.  These
		 * arrays then become expendable and the *_early_ptr's
		 * are zeroed indicating that the static arrays are
		 * gone.
		 */
#ifdef CONFIG_X86_LOCAL_APIC
		per_cpu(x86_cpu_to_apicid, cpu) =
			early_per_cpu_map(x86_cpu_to_apicid, cpu);
		per_cpu(x86_bios_cpu_apicid, cpu) =
			early_per_cpu_map(x86_bios_cpu_apicid, cpu);
		per_cpu(x86_cpu_to_acpiid, cpu) =
			early_per_cpu_map(x86_cpu_to_acpiid, cpu);
#endif
#ifdef CONFIG_X86_32
		per_cpu(x86_cpu_to_logical_apicid, cpu) =
			early_per_cpu_map(x86_cpu_to_logical_apicid, cpu);
#endif
#ifdef CONFIG_X86_64
		per_cpu(irq_stack_ptr, cpu) =
			per_cpu(irq_stack_union.irq_stack, cpu) +
			IRQ_STACK_SIZE;
#endif
#ifdef CONFIG_NUMA
		per_cpu(x86_cpu_to_node_map, cpu) =
			early_per_cpu_map(x86_cpu_to_node_map, cpu);
		/*
		 * Ensure that the boot cpu numa_node is correct when the boot
		 * cpu is on a node that doesn't have memory installed.
		 * Also cpu_up() will call cpu_to_node() for APs when
		 * MEMORY_HOTPLUG is defined, before per_cpu(numa_node) is set
		 * up later with c_init aka intel_init/amd_init.
		 * So set them all (boot cpu and all APs).
		 */
		set_cpu_numa_node(cpu, early_cpu_to_node(cpu));
#endif
		/*
		 * Up to this point, the boot CPU has been using .init.data
		 * area.  Reload any changed state for the boot CPU.
		 */
		if (!cpu)
			switch_to_new_gdt(cpu);
	}

	/* indicate the early static arrays will soon be gone */
#ifdef CONFIG_X86_LOCAL_APIC
	early_per_cpu_ptr(x86_cpu_to_apicid) = NULL;
	early_per_cpu_ptr(x86_bios_cpu_apicid) = NULL;
	early_per_cpu_ptr(x86_cpu_to_acpiid) = NULL;
#endif
#ifdef CONFIG_X86_32
	early_per_cpu_ptr(x86_cpu_to_logical_apicid) = NULL;
#endif
#ifdef CONFIG_NUMA
	early_per_cpu_ptr(x86_cpu_to_node_map) = NULL;
#endif

	/* Setup node to cpumask map */
	setup_node_to_cpumask_map();

	/* Setup cpu initialized, callin, callout masks */
	setup_cpu_local_masks();
}
Commit	Line	Data
40685236 JP	1	#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
40685236 JP	2
4fe29a85 GOC	3	#include <linux/kernel.h>
	4	#include <linux/module.h>
	5	#include <linux/init.h>
	6	#include <linux/bootmem.h>
	7	#include <linux/percpu.h>
1ecd2765	8	#include <linux/kexec.h>
17b4cceb	9	#include <linux/crash_dump.h>
8a87dd9a JSR	10	#include <linux/smp.h>
8a87dd9a JSR	11	#include <linux/topology.h>
5f5d8405	12	#include <linux/pfn.h>
4fe29a85 GOC	13	#include <asm/sections.h>
	14	#include <asm/processor.h>
	15	#include <asm/setup.h>
0fc0906e	16	#include <asm/mpspec.h>
76eb4131	17	#include <asm/apicdef.h>
1ecd2765	18	#include <asm/highmem.h>
1a51e3a0	19	#include <asm/proto.h>
06879033	20	#include <asm/cpumask.h>
34019be1	21	#include <asm/cpu.h>
60a5317f	22	#include <asm/stackprotector.h>
76eb4131	23
0816b0f0	24	DEFINE_PER_CPU_READ_MOSTLY(int, cpu_number);
ea927906	25	EXPORT_PER_CPU_SYMBOL(cpu_number);
ea927906	26
1688401a BG	27	#ifdef CONFIG_X86_64
	28	#define BOOT_PERCPU_OFFSET ((unsigned long)__per_cpu_load)
	29	#else
	30	#define BOOT_PERCPU_OFFSET 0
	31	#endif
	32
2c773dd3	33	DEFINE_PER_CPU_READ_MOSTLY(unsigned long, this_cpu_off) = BOOT_PERCPU_OFFSET;
1688401a BG	34	EXPORT_PER_CPU_SYMBOL(this_cpu_off);
1688401a BG	35
404f6aac	36	unsigned long __per_cpu_offset[NR_CPUS] __ro_after_init = {
34019be1	37	[0 ... NR_CPUS-1] = BOOT_PERCPU_OFFSET,
9939ddaf	38	};
9939ddaf	39	EXPORT_SYMBOL(__per_cpu_offset);
4fe29a85	40
6b19b0c2 TH	41	/*
	42	* On x86_64 symbols referenced from code should be reachable using
	43	* 32bit relocations. Reserve space for static percpu variables in
	44	* modules so that they are always served from the first chunk which
	45	* is located at the percpu segment base. On x86_32, anything can
	46	* address anywhere. No need to reserve space in the first chunk.
	47	*/
	48	#ifdef CONFIG_X86_64
	49	#define PERCPU_FIRST_CHUNK_RESERVE PERCPU_MODULE_RESERVE
	50	#else
	51	#define PERCPU_FIRST_CHUNK_RESERVE 0
	52	#endif
	53
4518e6a0	54	#ifdef CONFIG_X86_32
89c92151 TH	55	/**
	56	* pcpu_need_numa - determine percpu allocation needs to consider NUMA
	57	*
	58	* If NUMA is not configured or there is only one NUMA node available,
	59	* there is no reason to consider NUMA. This function determines
	60	* whether percpu allocation should consider NUMA or not.
	61	*
	62	* RETURNS:
	63	* true if NUMA should be considered; otherwise, false.
	64	*/
	65	static bool __init pcpu_need_numa(void)
	66	{
	67	#ifdef CONFIG_NEED_MULTIPLE_NODES
	68	pg_data_t *last = NULL;
	69	unsigned int cpu;
	70
	71	for_each_possible_cpu(cpu) {
	72	int node = early_cpu_to_node(cpu);
	73
	74	if (node_online(node) && NODE_DATA(node) &&
	75	last && last != NODE_DATA(node))
	76	return true;
	77
	78	last = NODE_DATA(node);
	79	}
	80	#endif
	81	return false;
	82	}
4518e6a0	83	#endif
89c92151	84
5f5d8405 TH	85	/**
	86	* pcpu_alloc_bootmem - NUMA friendly alloc_bootmem wrapper for percpu
	87	* @cpu: cpu to allocate for
	88	* @size: size allocation in bytes
	89	* @align: alignment
	90	*
	91	* Allocate @size bytes aligned at @align for cpu @cpu. This wrapper
	92	* does the right thing for NUMA regardless of the current
	93	* configuration.
	94	*
	95	* RETURNS:
	96	* Pointer to the allocated area on success, NULL on failure.
	97	*/
	98	static void * __init pcpu_alloc_bootmem(unsigned int cpu, unsigned long size,
	99	unsigned long align)
	100	{
	101	const unsigned long goal = __pa(MAX_DMA_ADDRESS);
	102	#ifdef CONFIG_NEED_MULTIPLE_NODES
	103	int node = early_cpu_to_node(cpu);
	104	void *ptr;
	105
	106	if (!node_online(node) \|\| !NODE_DATA(node)) {
	107	ptr = __alloc_bootmem_nopanic(size, align, goal);
	108	pr_info("cpu %d has no node %d or node-local memory\n",
	109	cpu, node);
	110	pr_debug("per cpu data for cpu%d %lu bytes at %016lx\n",
	111	cpu, size, __pa(ptr));
	112	} else {
	113	ptr = __alloc_bootmem_node_nopanic(NODE_DATA(node),
	114	size, align, goal);
40685236 JP	115	pr_debug("per cpu data for cpu%d %lu bytes on node%d at %016lx\n",
40685236 JP	116	cpu, size, node, __pa(ptr));
5f5d8405 TH	117	}
	118	return ptr;
	119	#else
	120	return __alloc_bootmem_nopanic(size, align, goal);
	121	#endif
	122	}
	123
d4b95f80 TH	124	/*
	125	* Helpers for first chunk memory allocation
	126	*/
3cbc8565	127	static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size, size_t align)
d4b95f80	128	{
3cbc8565	129	return pcpu_alloc_bootmem(cpu, size, align);
d4b95f80 TH	130	}
	131
	132	static void __init pcpu_fc_free(void *ptr, size_t size)
	133	{
	134	free_bootmem(__pa(ptr), size);
	135	}
	136
4518e6a0	137	static int __init pcpu_cpu_distance(unsigned int from, unsigned int to)
a530b795	138	{
4518e6a0	139	#ifdef CONFIG_NEED_MULTIPLE_NODES
a530b795 TH	140	if (early_cpu_to_node(from) == early_cpu_to_node(to))
	141	return LOCAL_DISTANCE;
	142	else
	143	return REMOTE_DISTANCE;
8ac83757	144	#else
4518e6a0	145	return LOCAL_DISTANCE;
8ac83757	146	#endif
89c92151 TH	147	}
89c92151 TH	148
00ae4064	149	static void __init pcpup_populate_pte(unsigned long addr)
458a3e64 TH	150	{
	151	populate_extra_pte(addr);
	152	}
	153
b2d2f431 BG	154	static inline void setup_percpu_segment(int cpu)
	155	{
	156	#ifdef CONFIG_X86_32
	157	struct desc_struct gdt;
	158
	159	pack_descriptor(&gdt, per_cpu_offset(cpu), 0xFFFFF,
	160	0x2 \| DESCTYPE_S, 0x8);
	161	gdt.s = 1;
	162	write_gdt_entry(get_cpu_gdt_table(cpu),
	163	GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S);
	164	#endif
	165	}
	166
4fe29a85 GOC	167	void __init setup_per_cpu_areas(void)
4fe29a85 GOC	168	{
5f5d8405	169	unsigned int cpu;
11124411	170	unsigned long delta;
fb435d52	171	int rc;
a1681965	172
ab14398a	173	pr_info("NR_CPUS:%d nr_cpumask_bits:%d nr_cpu_ids:%d nr_node_ids:%d\n",
a1681965	174	NR_CPUS, nr_cpumask_bits, nr_cpu_ids, nr_node_ids);
11124411	175
8ac83757	176	/*
4518e6a0 TH	177	* Allocate percpu area. Embedding allocator is our favorite;
	178	* however, on NUMA configurations, it can result in very
	179	* sparse unit mapping and vmalloc area isn't spacious enough
	180	* on 32bit. Use page in that case.
8ac83757	181	*/
4518e6a0 TH	182	#ifdef CONFIG_X86_32
	183	if (pcpu_chosen_fc == PCPU_FC_AUTO && pcpu_need_numa())
	184	pcpu_chosen_fc = PCPU_FC_PAGE;
	185	#endif
fb435d52	186	rc = -EINVAL;
4518e6a0	187	if (pcpu_chosen_fc != PCPU_FC_PAGE) {
4518e6a0 TH	188	const size_t dyn_size = PERCPU_MODULE_RESERVE +
4518e6a0 TH	189	PERCPU_DYNAMIC_RESERVE - PERCPU_FIRST_CHUNK_RESERVE;
d5e28005 TH	190	size_t atom_size;
	191
	192	/*
	193	* On 64bit, use PMD_SIZE for atom_size so that embedded
	194	* percpu areas are aligned to PMD. This, in the future,
	195	* can also allow using PMD mappings in vmalloc area. Use
	196	* PAGE_SIZE on 32bit as vmalloc space is highly contended
	197	* and large vmalloc area allocs can easily fail.
	198	*/
	199	#ifdef CONFIG_X86_64
	200	atom_size = PMD_SIZE;
	201	#else
	202	atom_size = PAGE_SIZE;
	203	#endif
4518e6a0 TH	204	rc = pcpu_embed_first_chunk(PERCPU_FIRST_CHUNK_RESERVE,
	205	dyn_size, atom_size,
	206	pcpu_cpu_distance,
	207	pcpu_fc_alloc, pcpu_fc_free);
fb435d52	208	if (rc < 0)
40685236	209	pr_warning("%s allocator failed (%d), falling back to page size\n",
4518e6a0	210	pcpu_fc_names[pcpu_chosen_fc], rc);
fa8a7094	211	}
fb435d52	212	if (rc < 0)
4518e6a0 TH	213	rc = pcpu_page_first_chunk(PERCPU_FIRST_CHUNK_RESERVE,
	214	pcpu_fc_alloc, pcpu_fc_free,
	215	pcpup_populate_pte);
fb435d52 TH	216	if (rc < 0)
fb435d52 TH	217	panic("cannot initialize percpu area (err=%d)", rc);
11124411	218
5f5d8405	219	/* alrighty, percpu areas up and running */
11124411 TH	220	delta = (unsigned long)pcpu_base_addr - (unsigned long)__per_cpu_start;
11124411 TH	221	for_each_possible_cpu(cpu) {
fb435d52	222	per_cpu_offset(cpu) = delta + pcpu_unit_offsets[cpu];
26f80bd6	223	per_cpu(this_cpu_off, cpu) = per_cpu_offset(cpu);
ea927906	224	per_cpu(cpu_number, cpu) = cpu;
b2d2f431	225	setup_percpu_segment(cpu);
60a5317f	226	setup_stack_canary_segment(cpu);
0d77e7f0	227	/*
cf3997f5 TH	228	* Copy data used in early init routines from the
	229	* initial arrays to the per cpu data areas. These
	230	* arrays then become expendable and the *_early_ptr's
	231	* are zeroed indicating that the static arrays are
	232	* gone.
0d77e7f0	233	*/
ec70de8b	234	#ifdef CONFIG_X86_LOCAL_APIC
0d77e7f0	235	per_cpu(x86_cpu_to_apicid, cpu) =
cf3997f5	236	early_per_cpu_map(x86_cpu_to_apicid, cpu);
0d77e7f0	237	per_cpu(x86_bios_cpu_apicid, cpu) =
cf3997f5	238	early_per_cpu_map(x86_bios_cpu_apicid, cpu);
3e9e57fa VK	239	per_cpu(x86_cpu_to_acpiid, cpu) =
3e9e57fa VK	240	early_per_cpu_map(x86_cpu_to_acpiid, cpu);
ec70de8b	241	#endif
4c321ff8 TH	242	#ifdef CONFIG_X86_32
	243	per_cpu(x86_cpu_to_logical_apicid, cpu) =
	244	early_per_cpu_map(x86_cpu_to_logical_apicid, cpu);
	245	#endif
1a51e3a0	246	#ifdef CONFIG_X86_64
26f80bd6	247	per_cpu(irq_stack_ptr, cpu) =
cf3997f5	248	per_cpu(irq_stack_union.irq_stack, cpu) +
4950d6d4	249	IRQ_STACK_SIZE;
645a7919	250	#endif
6470aff6 BG	251	#ifdef CONFIG_NUMA
6470aff6 BG	252	per_cpu(x86_cpu_to_node_map, cpu) =
cf3997f5	253	early_per_cpu_map(x86_cpu_to_node_map, cpu);
9aebbdb6	254	/*
a4ce96ac	255	* Ensure that the boot cpu numa_node is correct when the boot
9aebbdb6 YL	256	* cpu is on a node that doesn't have memory installed.
	257	* Also cpu_up() will call cpu_to_node() for APs when
	258	* MEMORY_HOTPLUG is defined, before per_cpu(numa_node) is set
	259	* up later with c_init aka intel_init/amd_init.
	260	* So set them all (boot cpu and all APs).
	261	*/
	262	set_cpu_numa_node(cpu, early_cpu_to_node(cpu));
6470aff6	263	#endif
1a51e3a0	264	/*
c273fb3b	265	* Up to this point, the boot CPU has been using .init.data
2697fbd5	266	* area. Reload any changed state for the boot CPU.
1a51e3a0	267	*/
f6e9456c	268	if (!cpu)
552be871	269	switch_to_new_gdt(cpu);
4fe29a85 GOC	270	}
4fe29a85 GOC	271
0d77e7f0	272	/* indicate the early static arrays will soon be gone */
22f25138	273	#ifdef CONFIG_X86_LOCAL_APIC
0d77e7f0 BG	274	early_per_cpu_ptr(x86_cpu_to_apicid) = NULL;
0d77e7f0 BG	275	early_per_cpu_ptr(x86_bios_cpu_apicid) = NULL;
3e9e57fa	276	early_per_cpu_ptr(x86_cpu_to_acpiid) = NULL;
22f25138	277	#endif
4c321ff8 TH	278	#ifdef CONFIG_X86_32
	279	early_per_cpu_ptr(x86_cpu_to_logical_apicid) = NULL;
	280	#endif
645a7919	281	#ifdef CONFIG_NUMA
0d77e7f0 BG	282	early_per_cpu_ptr(x86_cpu_to_node_map) = NULL;
0d77e7f0 BG	283	#endif
9f0e8d04	284
9f248bde MT	285	/* Setup node to cpumask map */
9f248bde MT	286	setup_node_to_cpumask_map();
c2d1cec1 MT	287
	288	/* Setup cpu initialized, callin, callout masks */
	289	setup_cpu_local_masks();
4fe29a85	290	}