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Viewing File: /usr/src/kernels/5.14.0-503.33.1.el9_5.x86_64/arch/x86/include/asm/mpspec.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_MPSPEC_H
#define _ASM_X86_MPSPEC_H


#include <asm/mpspec_def.h>
#include <asm/x86_init.h>
#include <asm/apicdef.h>

extern int pic_mode;

#ifdef CONFIG_X86_32

/*
 * Summit or generic (i.e. installer) kernels need lots of bus entries.
 * Maximum 256 PCI busses, plus 1 ISA bus in each of 4 cabinets.
 */
#if CONFIG_BASE_SMALL == 0
# define MAX_MP_BUSSES		260
#else
# define MAX_MP_BUSSES		32
#endif

#define MAX_IRQ_SOURCES		256

#else /* CONFIG_X86_64: */

#define MAX_MP_BUSSES		256
/* Each PCI slot may be a combo card with its own bus.  4 IRQ pins per slot. */
#define MAX_IRQ_SOURCES		(MAX_MP_BUSSES * 4)

#endif /* CONFIG_X86_64 */

#ifdef CONFIG_EISA
extern int mp_bus_id_to_type[MAX_MP_BUSSES];
#endif

extern DECLARE_BITMAP(mp_bus_not_pci, MAX_MP_BUSSES);

extern u32 boot_cpu_physical_apicid;
extern u8 boot_cpu_apic_version;

#ifdef CONFIG_X86_LOCAL_APIC
extern int smp_found_config;
#else
# define smp_found_config 0
#endif

static inline void get_smp_config(void)
{
	x86_init.mpparse.get_smp_config(0);
}

static inline void early_get_smp_config(void)
{
	x86_init.mpparse.get_smp_config(1);
}

static inline void find_smp_config(void)
{
	x86_init.mpparse.find_smp_config();
}

#ifdef CONFIG_X86_MPPARSE
extern void e820__memblock_alloc_reserved_mpc_new(void);
extern int enable_update_mptable;
extern void default_find_smp_config(void);
extern void default_get_smp_config(unsigned int early);
#else
static inline void e820__memblock_alloc_reserved_mpc_new(void) { }
#define enable_update_mptable 0
#define default_find_smp_config x86_init_noop
#define default_get_smp_config x86_init_uint_noop
#endif

int generic_processor_info(int apicid);

#define PHYSID_ARRAY_SIZE	BITS_TO_LONGS(MAX_LOCAL_APIC)

struct physid_mask {
	unsigned long mask[PHYSID_ARRAY_SIZE];
};

typedef struct physid_mask physid_mask_t;

#define physid_set(physid, map)			set_bit(physid, (map).mask)
#define physid_isset(physid, map)		test_bit(physid, (map).mask)

#define physids_or(dst, src1, src2)					\
	bitmap_or((dst).mask, (src1).mask, (src2).mask, MAX_LOCAL_APIC)

#define physids_clear(map)					\
	bitmap_zero((map).mask, MAX_LOCAL_APIC)

#define physids_empty(map)					\
	bitmap_empty((map).mask, MAX_LOCAL_APIC)

static inline void physids_promote(unsigned long physids, physid_mask_t *map)
{
	physids_clear(*map);
	map->mask[0] = physids;
}

static inline void physid_set_mask_of_physid(int physid, physid_mask_t *map)
{
	physids_clear(*map);
	physid_set(physid, *map);
}

#define PHYSID_MASK_ALL		{ {[0 ... PHYSID_ARRAY_SIZE-1] = ~0UL} }
#define PHYSID_MASK_NONE	{ {[0 ... PHYSID_ARRAY_SIZE-1] = 0UL} }

extern physid_mask_t phys_cpu_present_map;

#endif /* _ASM_X86_MPSPEC_H */
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