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Open Menu / arch / x86 / kernel / apic / local.h
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/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Historical copyright notices:
 *
 * Copyright 2004 James Cleverdon, IBM.
 * (c) 1995 Alan Cox, Building #3 <alan@redhat.com>
 * (c) 1998-99, 2000 Ingo Molnar <mingo@redhat.com>
 * (c) 2002,2003 Andi Kleen, SuSE Labs.
 */

#include <linux/jump_label.h>

#include <asm/irq_vectors.h>
#include <asm/apic.h>

/* APIC flat 64 */
void flat_init_apic_ldr(void);

/* X2APIC */
int x2apic_apic_id_valid(u32 apicid);
int x2apic_apic_id_registered(void);
void __x2apic_send_IPI_dest(unsigned int apicid, int vector, unsigned int dest);
unsigned int x2apic_get_apic_id(unsigned long id);
u32 x2apic_set_apic_id(unsigned int id);
int x2apic_phys_pkg_id(int initial_apicid, int index_msb);
void x2apic_send_IPI_self(int vector);
void __x2apic_send_IPI_shorthand(int vector, u32 which);

/* IPI */

DECLARE_STATIC_KEY_FALSE(apic_use_ipi_shorthand);

static inline unsigned int __prepare_ICR(unsigned int shortcut, int vector,
					 unsigned int dest)
{
	unsigned int icr = shortcut | dest;

	switch (vector) {
	default:
		icr |= APIC_DM_FIXED | vector;
		break;
	case NMI_VECTOR:
		icr |= APIC_DM_NMI;
		break;
	}
	return icr;
}

void __default_send_IPI_shortcut(unsigned int shortcut, int vector);

/*
 * This is used to send an IPI with no shorthand notation (the destination is
 * specified in bits 56 to 63 of the ICR).
 */
void __default_send_IPI_dest_field(unsigned int mask, int vector, unsigned int dest);

void default_send_IPI_single(int cpu, int vector);
void default_send_IPI_single_phys(int cpu, int vector);
void default_send_IPI_mask_sequence_phys(const struct cpumask *mask, int vector);
void default_send_IPI_mask_allbutself_phys(const struct cpumask *mask, int vector);
void default_send_IPI_allbutself(int vector);
void default_send_IPI_all(int vector);
void default_send_IPI_self(int vector);

#ifdef CONFIG_X86_32
void default_send_IPI_mask_sequence_logical(const struct cpumask *mask, int vector);
void default_send_IPI_mask_allbutself_logical(const struct cpumask *mask, int vector);
void default_send_IPI_mask_logical(const struct cpumask *mask, int vector);
#endif