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 * $DragonFly: src/sys/platform/pc64/apic/mpapic.h,v 1.1 2008/08/29 17:07:12 dillon Exp $ 28 */ 29 30 #ifndef _ARCH_APIC_LAPIC_H_ 31 #define _ARCH_APIC_LAPIC_H_ 32 33 #include <machine_base/apic/apicreg.h> 34 35 /* 36 * APIC ID <-> CPU ID mapping macros 37 */ 38 #define CPUID_TO_APICID(cpu_id) (cpu_id_to_apic_id[(cpu_id)]) 39 #define APICID_TO_CPUID(apic_id) (apic_id_to_cpu_id[(apic_id)]) 40 41 #ifndef _SYS_QUEUE_H_ 42 #include <sys/queue.h> 43 #endif 44 45 struct lapic_enumerator { 46 int lapic_prio; 47 TAILQ_ENTRY(lapic_enumerator) lapic_link; 48 int (*lapic_probe)(struct lapic_enumerator *); 49 void (*lapic_enumerate)(struct lapic_enumerator *); 50 }; 51 52 #define LAPIC_ENUM_PRIO_MPTABLE 20 53 #define LAPIC_ENUM_PRIO_MADT 40 54 55 extern volatile lapic_t *lapic; 56 extern int cpu_id_to_apic_id[]; 57 extern int apic_id_to_cpu_id[]; 58 extern int lapic_enable; 59 60 void apic_dump(char*); 61 void lapic_init(boolean_t); 62 void lapic_set_cpuid(int, int); 63 int lapic_config(void); 64 void lapic_enumerator_register(struct lapic_enumerator *); 65 void set_apic_timer(int); 66 int get_apic_timer_frequency(void); 67 int read_apic_timer(void); 68 void u_sleep(int); 69 70 void lapic_map(vm_paddr_t); 71 int lapic_unused_apic_id(int); 72 void lapic_fixup_noioapic(void); 73 74 #ifdef SMP 75 76 #ifndef _MACHINE_SMP_H_ 77 #include <machine/smp.h> 78 #endif 79 80 int apic_ipi(int, int, int); 81 void selected_apic_ipi(cpumask_t, int, int); 82 void single_apic_ipi(int, int, int); 83 int single_apic_ipi_passive(int, int, int); 84 85 /* 86 * Send an IPI INTerrupt containing 'vector' to all CPUs EXCEPT myself 87 */ 88 static __inline int 89 all_but_self_ipi(int vector) 90 { 91 if (smp_active_mask == 1) 92 return 0; 93 return apic_ipi(APIC_DEST_ALLESELF, vector, APIC_DELMODE_FIXED); 94 } 95 96 #endif /* SMP */ 97 98 #endif /* _ARCH_APIC_LAPIC_H_ */ 99