1 /* 2 * ---------------------------------------------------------------------------- 3 * "THE BEER-WARE LICENSE" (Revision 42): 4 * <phk@FreeBSD.org> wrote this file. As long as you retain this notice you 5 * can do whatever you want with this stuff. If we meet some day, and you think 6 * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp 7 * ---------------------------------------------------------------------------- 8 * 9 * $FreeBSD: src/sys/i386/include/smp.h,v 1.50.2.5 2001/02/13 22:32:45 tegge Exp $ 10 */ 11 12 #ifndef _MACHINE_SMP_H_ 13 #define _MACHINE_SMP_H_ 14 15 #ifdef _KERNEL 16 17 #ifndef LOCORE 18 19 /* global data in apic_vector.s */ 20 extern volatile cpumask_t stopped_cpus; 21 extern int optcpus; /* from main() */ 22 extern int vkernel_b_arg; /* arg from main() */ 23 extern int vkernel_B_arg; /* arg from main() */ 24 25 void mp_start (void); 26 void mp_announce (void); 27 int stop_cpus (cpumask_t); 28 void ap_init (void); 29 int restart_cpus (cpumask_t); 30 void cpu_send_ipiq (int); 31 int cpu_send_ipiq_passive (int); 32 33 /* global data in init_smp.c */ 34 extern cpumask_t smp_active_mask; 35 36 /* Detect CPU topology bits */ 37 void detect_cpu_topology(void); 38 39 /* Interface functions for IDs calculation */ 40 int get_chip_ID(int cpuid); 41 int get_chip_ID_from_APICID(int apicid); 42 int get_core_number_within_chip(int cpuid); 43 int get_logical_CPU_number_within_core(int cpuid); 44 45 /* Assume that APICID = CPUID for virtual processors */ 46 #define get_cpuid_from_apicid(apicid) apicid 47 #define get_apicid_from_cpuid(cpuid) cpuid 48 #define CPUID_TO_APICID(cpuid) get_apicid_from_cpuid(cpuid) 49 50 #endif /* !LOCORE */ 51 52 #endif /* _KERNEL */ 53 #endif /* _MACHINE_SMP_H_ */ 54