arch/x86/include/asm/genapic.h

#ifndef _ASM_X86_GENAPIC_H
#define _ASM_X86_GENAPIC_H

#include <linux/cpumask.h>

#include <asm/mpspec.h>
#include <asm/atomic.h>

/*
 * Copyright 2004 James Cleverdon, IBM.
 * Subject to the GNU Public License, v.2
 *
 * Generic APIC sub-arch data struct.
 *
 * Hacked for x86-64 by James Cleverdon from i386 architecture code by
 * Martin Bligh, Andi Kleen, James Bottomley, John Stultz, and
 * James Cleverdon.
 */
struct genapic {
	char *name;

	int (*probe)(void);
	int (*acpi_madt_oem_check)(char *oem_id, char *oem_table_id);
	int (*apic_id_registered)(void);

	u32 int_delivery_mode;
	u32 int_dest_mode;

	const struct cpumask *(*target_cpus)(void);

	int ESR_DISABLE;

	int apic_destination_logical;
	unsigned long (*check_apicid_used)(physid_mask_t bitmap, int apicid);
	unsigned long (*check_apicid_present)(int apicid);

	int no_balance_irq;
	int no_ioapic_check;

	void (*vector_allocation_domain)(int cpu, struct cpumask *retmask);
	void (*init_apic_ldr)(void);

	physid_mask_t (*ioapic_phys_id_map)(physid_mask_t map);

	void (*setup_apic_routing)(void);
	int (*multi_timer_check)(int apic, int irq);
	int (*apicid_to_node)(int logical_apicid);
	int (*cpu_to_logical_apicid)(int cpu);
	int (*cpu_present_to_apicid)(int mps_cpu);
	physid_mask_t (*apicid_to_cpu_present)(int phys_apicid);
	void (*setup_portio_remap)(void);
	int (*check_phys_apicid_present)(int boot_cpu_physical_apicid);
	void (*enable_apic_mode)(void);
#ifdef CONFIG_X86_32
	u32 (*phys_pkg_id)(u32 cpuid_apic, int index_msb);
#else
	unsigned int (*phys_pkg_id)(int index_msb);
#endif

	/*
	 * When one of the next two hooks returns 1 the genapic
	 * is switched to this. Essentially they are additional
	 * probe functions:
	 */
	int (*mps_oem_check)(struct mpc_table *mpc, char *oem,
			     char *productid);

	unsigned int (*get_apic_id)(unsigned long x);
	unsigned long (*set_apic_id)(unsigned int id);
	unsigned long apic_id_mask;

	unsigned int (*cpu_mask_to_apicid)(const struct cpumask *cpumask);
	unsigned int (*cpu_mask_to_apicid_and)(const struct cpumask *cpumask,
					       const struct cpumask *andmask);

#ifdef CONFIG_SMP
	/* ipi */
	void (*send_IPI_mask)(const struct cpumask *mask, int vector);
	void (*send_IPI_mask_allbutself)(const struct cpumask *mask,
					 int vector);
	void (*send_IPI_allbutself)(int vector);
	void (*send_IPI_all)(int vector);
	void (*send_IPI_self)(int vector);
#endif
	/* wakeup_secondary_cpu */
	int (*wakeup_cpu)(int apicid, unsigned long start_eip);

	int trampoline_phys_low;
	int trampoline_phys_high;

	void (*wait_for_init_deassert)(atomic_t *deassert);
	void (*smp_callin_clear_local_apic)(void);
	void (*store_NMI_vector)(unsigned short *high, unsigned short *low);
	void (*restore_NMI_vector)(unsigned short *high, unsigned short *low);
	void (*inquire_remote_apic)(int apicid);
};

extern struct genapic *genapic;

#ifdef CONFIG_X86_32

#define APICFUNC(x) .x = x,

/* More functions could be probably marked IPIFUNC and save some space
   in UP GENERICARCH kernels, but I don't have the nerve right now
   to untangle this mess. -AK  */
#ifdef CONFIG_SMP
#define IPIFUNC(x) APICFUNC(x)
#else
#define IPIFUNC(x)
#endif

#define APIC_INIT(aname, aprobe)			\
{							\
	.name = aname,					\
	.probe = aprobe,				\
	.int_delivery_mode = INT_DELIVERY_MODE,		\
	.int_dest_mode = INT_DEST_MODE,			\
	.no_balance_irq = NO_BALANCE_IRQ,		\
	.ESR_DISABLE = esr_disable,			\
	.apic_destination_logical = APIC_DEST_LOGICAL,	\
	APICFUNC(apic_id_registered)			\
	APICFUNC(target_cpus)				\
	APICFUNC(check_apicid_used)			\
	APICFUNC(check_apicid_present)			\
	APICFUNC(init_apic_ldr)				\
	APICFUNC(ioapic_phys_id_map)			\
	APICFUNC(setup_apic_routing)			\
	APICFUNC(multi_timer_check)			\
	APICFUNC(apicid_to_node)			\
	APICFUNC(cpu_to_logical_apicid)			\
	APICFUNC(cpu_present_to_apicid)			\
	APICFUNC(apicid_to_cpu_present)			\
	APICFUNC(setup_portio_remap)			\
	APICFUNC(check_phys_apicid_present)		\
	APICFUNC(mps_oem_check)				\
	APICFUNC(get_apic_id)				\
	.apic_id_mask = APIC_ID_MASK,			\
	APICFUNC(cpu_mask_to_apicid)			\
	APICFUNC(cpu_mask_to_apicid_and)		\
	APICFUNC(vector_allocation_domain)		\
	APICFUNC(acpi_madt_oem_check)			\
	IPIFUNC(send_IPI_mask)				\
	IPIFUNC(send_IPI_allbutself)			\
	IPIFUNC(send_IPI_all)				\
	APICFUNC(enable_apic_mode)			\
	APICFUNC(phys_pkg_id)				\
	.trampoline_phys_low = TRAMPOLINE_PHYS_LOW,	\
	.trampoline_phys_high = TRAMPOLINE_PHYS_HIGH,	\
	APICFUNC(wait_for_init_deassert)		\
	APICFUNC(smp_callin_clear_local_apic)		\
	APICFUNC(store_NMI_vector)			\
	APICFUNC(restore_NMI_vector)			\
	APICFUNC(inquire_remote_apic)			\
}

extern void es7000_update_genapic_to_cluster(void);

#else /* CONFIG_X86_64: */

extern struct genapic apic_flat;
extern struct genapic apic_physflat;
extern struct genapic apic_x2apic_cluster;
extern struct genapic apic_x2apic_phys;
extern int acpi_madt_oem_check(char *, char *);

extern void apic_send_IPI_self(int vector);

extern struct genapic apic_x2apic_uv_x;
DECLARE_PER_CPU(int, x2apic_extra_bits);

extern void setup_apic_routing(void);

#endif /* CONFIG_X86_64 */

#endif /* _ASM_X86_GENAPIC_64_H */