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 /* XXX wrong header */ 20 void initializecpu(void); 21 22 #endif /* LOCORE */ 23 24 #ifndef LOCORE 25 26 /* 27 * For sending values to POST displays. 28 * XXX FIXME: where does this really belong, isa.h/isa.c perhaps? 29 */ 30 extern int current_postcode; /** XXX currently in mp_machdep.c */ 31 #define POSTCODE(X) current_postcode = (X), \ 32 outb(0x80, current_postcode) 33 #define POSTCODE_LO(X) current_postcode &= 0xf0, \ 34 current_postcode |= ((X) & 0x0f), \ 35 outb(0x80, current_postcode) 36 #define POSTCODE_HI(X) current_postcode &= 0x0f, \ 37 current_postcode |= (((X) << 4) & 0xf0), \ 38 outb(0x80, current_postcode) 39 40 41 #include <machine_base/apic/apicreg.h> 42 #include <machine/pcb.h> 43 44 /* global symbols in mpboot.S */ 45 extern char mptramp_start[]; 46 extern char mptramp_end[]; 47 extern u_int32_t mptramp_pagetables; 48 49 /* functions in mpboot.s */ 50 void bootMP (void); 51 52 /* global data in apic_vector.s */ 53 extern volatile cpumask_t stopped_cpus; 54 extern volatile cpumask_t started_cpus; 55 56 extern volatile u_int checkstate_probed_cpus; 57 extern void (*cpustop_restartfunc) (void); 58 59 extern struct pcb stoppcbs[]; 60 61 /* functions in mp_machdep.c */ 62 u_int mp_bootaddress (u_int); 63 void mp_start (void); 64 void mp_announce (void); 65 void init_secondary (void); 66 int stop_cpus (cpumask_t); 67 void ap_init (void); 68 int restart_cpus (cpumask_t); 69 void forward_signal (struct proc *); 70 71 #if defined(READY) 72 void clr_io_apic_mask24 (int, u_int32_t); 73 void set_io_apic_mask24 (int, u_int32_t); 74 #endif /* READY */ 75 76 void cpu_send_ipiq (int); 77 int cpu_send_ipiq_passive (int); 78 79 /* global data in init_smp.c */ 80 extern cpumask_t smp_active_mask; 81 82 /* Detect CPU topology bits */ 83 void detect_cpu_topology(void); 84 85 /* Interface functions for IDs calculation */ 86 int get_chip_ID(int cpuid); 87 int get_core_number_within_chip(int cpuid); 88 int get_logical_CPU_number_within_core(int cpuid); 89 90 #include <machine_base/apic/lapic.h> 91 static __inline 92 int get_apicid_from_cpuid(int cpuid) { 93 return CPUID_TO_APICID(cpuid); 94 } 95 static __inline 96 int get_cpuid_from_apicid(int apicid) { 97 return APICID_TO_CPUID(apicid); 98 } 99 100 #endif /* !LOCORE */ 101 102 #endif /* _KERNEL */ 103 #endif /* _MACHINE_SMP_H_ */ 104