| | 1 | /* |
| | 2 | * Copyright (c) 1996, by Steve Passe |
| | 3 | * Copyright (c) 2008 The DragonFly Project. |
| | 4 | * All rights reserved. |
| | 5 | * |
| | 6 | * Redistribution and use in source and binary forms, with or without |
| | 7 | * modification, are permitted provided that the following conditions |
| | 8 | * are met: |
| | 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. |
| | 13 | * |
| | 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 |
| | 24 | * SUCH DAMAGE. |
| | 25 | * |
| | 26 | * $FreeBSD: src/sys/i386/include/mpapic.h,v 1.14.2.2 2000/09/30 02:49:34 ps Exp $ |
| | 27 | */ |
| | 28 | |
| | 29 | #ifndef _ARCH_APIC_LAPIC_H_ |
| | 30 | #define _ARCH_APIC_LAPIC_H_ |
| | 31 | |
| | 32 | #include <machine_base/apic/apicreg.h> |
| | 33 | |
| | 34 | /* |
| | 35 | * APIC ID <-> CPU ID mapping macros |
| | 36 | */ |
| | 37 | #define CPUID_TO_APICID(cpu_id) (cpu_id_to_apic_id[(cpu_id)]) |
| | 38 | #define APICID_TO_CPUID(apic_id) (apic_id_to_cpu_id[(apic_id)]) |
| | 39 | |
| | 40 | #ifndef _SYS_QUEUE_H_ |
| | 41 | #include <sys/queue.h> |
| | 42 | #endif |
| | 43 | |
| | 44 | struct lapic_enumerator { |
| | 45 | int lapic_prio; |
| | 46 | TAILQ_ENTRY(lapic_enumerator) lapic_link; |
| | 47 | int (*lapic_probe)(struct lapic_enumerator *); |
| | 48 | int (*lapic_enumerate)(struct lapic_enumerator *); |
| | 49 | }; |
| | 50 | |
| | 51 | #define LAPIC_ENUM_PRIO_MPTABLE 20 |
| | 52 | #define LAPIC_ENUM_PRIO_MADT 40 |
| | 53 | |
| | 54 | extern volatile lapic_t *lapic; |
| | 55 | extern int cpu_id_to_apic_id[]; |
| | 56 | extern int apic_id_to_cpu_id[]; |
| | 57 | extern int lapic_enable; |
| | 58 | |
| | 59 | void apic_dump(char*); |
| | 60 | void lapic_init(boolean_t); |
| | 61 | void lapic_set_cpuid(int, int); |
| | 62 | int lapic_config(void); |
| | 63 | void lapic_enumerator_register(struct lapic_enumerator *); |
| | 64 | void set_apic_timer(int); |
| | 65 | int get_apic_timer_frequency(void); |
| | 66 | int read_apic_timer(void); |
| | 67 | void u_sleep(int); |
| | 68 | |
| | 69 | void lapic_map(vm_paddr_t); |
| | 70 | int lapic_unused_apic_id(int); |
| | 71 | void lapic_fixup_noioapic(void); |
| | 72 | |
| | 73 | #ifndef _MACHINE_SMP_H_ |
| | 74 | #include <machine/smp.h> |
| | 75 | #endif |
| | 76 | |
| | 77 | int apic_ipi(int, int, int); |
| | 78 | void selected_apic_ipi(cpumask_t, int, int); |
| | 79 | void single_apic_ipi(int, int, int); |
| | 80 | int single_apic_ipi_passive(int, int, int); |
| | 81 | |
| | 82 | /* |
| | 83 | * Send an IPI INTerrupt containing 'vector' to all CPUs EXCEPT myself |
| | 84 | */ |
| | 85 | static __inline int |
| | 86 | all_but_self_ipi(int vector) |
| | 87 | { |
| | 88 | if (CPUMASK_ISUP(smp_active_mask)) |
| | 89 | return 0; |
| | 90 | return apic_ipi(APIC_DEST_ALLESELF, vector, APIC_DELMODE_FIXED); |
| | 91 | } |
| | 92 | |
| | 93 | #endif /* _ARCH_APIC_LAPIC_H_ */ |
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