2 * Copyright (c) 1996, by Steve Passe
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. The name of the developer may NOT be used to endorse or promote products
11 * derived from this software without specific prior written permission.
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * $FreeBSD: src/sys/i386/include/mpapic.h,v 1.14.2.2 2000/09/30 02:49:34 ps Exp $
26 * $DragonFly: src/sys/platform/pc32/apic/mpapic.h,v 1.12 2008/06/07 11:37:23 mneumann Exp $
29 #ifndef _ARCH_APIC_LAPIC_H_
30 #define _ARCH_APIC_LAPIC_H_
32 #include <machine_base/apic/apicreg.h>
35 * the physical/logical APIC ID management macros
37 #define CPU_TO_ID(CPU) (cpu_num_to_apic_id[CPU])
38 #define ID_TO_CPU(ID) (apic_id_to_logical[ID])
41 #include <sys/queue.h>
44 struct lapic_enumerator {
46 TAILQ_ENTRY(lapic_enumerator) lapic_link;
47 int (*lapic_probe)(struct lapic_enumerator *);
48 void (*lapic_enumerate)(struct lapic_enumerator *);
51 #define LAPIC_ENUM_PRIO_MPTABLE 20
52 #define LAPIC_ENUM_PRIO_MADT 40
56 extern volatile lapic_t *lapic;
57 extern int cpu_num_to_apic_id[];
58 extern int apic_id_to_logical[];
60 void apic_dump(char*);
61 void lapic_init(boolean_t);
62 int apic_ipi(int, int, int);
63 void selected_apic_ipi(cpumask_t, int, int);
64 void single_apic_ipi(int, int, int);
65 int single_apic_ipi_passive(int, int, int);
66 void lapic_config(void);
67 void lapic_enumerator_register(struct lapic_enumerator *);
68 void set_apic_timer(int);
69 int get_apic_timer_frequency(void);
70 int read_apic_timer(void);
74 * Send an IPI INTerrupt containing 'vector' to all CPUs EXCEPT myself
77 all_but_self_ipi(int vector)
79 if (smp_active_mask == 1)
81 return apic_ipi(APIC_DEST_ALLESELF, vector, APIC_DELMODE_FIXED);
86 void lapic_map(vm_offset_t /* XXX should be vm_paddr_t */);
87 int lapic_unused_apic_id(int);
89 #endif /* _ARCH_APIC_LAPIC_H_ */