2 * Copyright (c) 1996, by Steve Passe
3 * Copyright (c) 2008 The DragonFly Project.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. The name of the developer may NOT be used to endorse or promote products
12 * derived from this software without specific prior written permission.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: src/sys/i386/include/mpapic.h,v 1.14.2.2 2000/09/30 02:49:34 ps Exp $
27 * $DragonFly: src/sys/platform/pc64/apic/mpapic.h,v 1.1 2008/08/29 17:07:12 dillon Exp $
30 #ifndef _ARCH_APIC_LAPIC_H_
31 #define _ARCH_APIC_LAPIC_H_
33 #include <machine_base/apic/apicreg.h>
36 * the physical/logical APIC ID management macros
38 #define CPU_TO_ID(CPU) (cpu_num_to_apic_id[CPU])
39 #define ID_TO_CPU(ID) (apic_id_to_logical[ID])
42 #include <sys/queue.h>
45 struct lapic_enumerator {
47 TAILQ_ENTRY(lapic_enumerator) lapic_link;
48 int (*lapic_probe)(struct lapic_enumerator *);
49 void (*lapic_enumerate)(struct lapic_enumerator *);
52 #define LAPIC_ENUM_PRIO_MPTABLE 20
53 #define LAPIC_ENUM_PRIO_MADT 40
57 extern volatile lapic_t *lapic;
58 extern int cpu_num_to_apic_id[];
59 extern int apic_id_to_logical[];
61 void apic_dump(char*);
62 void lapic_init(boolean_t);
63 int apic_ipi(int, int, int);
64 void selected_apic_ipi(cpumask_t, int, int);
65 void single_apic_ipi(int, int, int);
66 int single_apic_ipi_passive(int, int, int);
67 void lapic_set_cpuid(int, int);
68 void lapic_config(void);
69 void lapic_enumerator_register(struct lapic_enumerator *);
70 void set_apic_timer(int);
71 int get_apic_timer_frequency(void);
72 int read_apic_timer(void);
76 * Send an IPI INTerrupt containing 'vector' to all CPUs EXCEPT myself
79 all_but_self_ipi(int vector)
81 if (smp_active_mask == 1)
83 return apic_ipi(APIC_DEST_ALLESELF, vector, APIC_DELMODE_FIXED);
88 void lapic_map(vm_offset_t /* XXX should be vm_paddr_t */);
89 int lapic_unused_apic_id(int);
91 #endif /* _ARCH_APIC_LAPIC_H_ */