smp.h revision 48924
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 * $Id: smp.h,v 1.45 1999/04/28 01:04:07 luoqi Exp $ 10 * 11 */ 12 13#ifndef _MACHINE_SMP_H_ 14#define _MACHINE_SMP_H_ 15 16#ifdef KERNEL 17 18#if defined(SMP) && !defined(APIC_IO) 19# error APIC_IO required for SMP, add "options APIC_IO" to your config file. 20#endif /* SMP && !APIC_IO */ 21 22/* Number of CPUs. */ 23#if defined(SMP) && !defined(NCPU) 24# define NCPU 2 25#endif /* SMP && NCPU */ 26 27/* Number of IO APICs. */ 28#if defined(APIC_IO) && !defined(NAPIC) 29# define NAPIC 1 30#endif /* SMP && NAPIC */ 31 32 33#if defined(SMP) || defined(APIC_IO) 34 35#ifndef LOCORE 36 37/* 38 * For sending values to POST displays. 39 * XXX FIXME: where does this really belong, isa.h/isa.c perhaps? 40 */ 41extern int current_postcode; /** XXX currently in mp_machdep.c */ 42#define POSTCODE(X) current_postcode = (X), \ 43 outb(0x80, current_postcode) 44#define POSTCODE_LO(X) current_postcode &= 0xf0, \ 45 current_postcode |= ((X) & 0x0f), \ 46 outb(0x80, current_postcode) 47#define POSTCODE_HI(X) current_postcode &= 0x0f, \ 48 current_postcode |= (((X) << 4) & 0xf0), \ 49 outb(0x80, current_postcode) 50 51 52#include <machine/apic.h> 53 54/* global data in mpboot.s */ 55extern int bootMP_size; 56 57/* functions in mpboot.s */ 58void bootMP __P((void)); 59 60/* global data in mplock.s */ 61extern u_int mp_lock; 62extern u_int isr_lock; 63#ifdef RECURSIVE_MPINTRLOCK 64extern u_int mpintr_lock; 65#endif /* RECURSIVE_MPINTRLOCK */ 66 67/* functions in mplock.s */ 68void get_mplock __P((void)); 69void rel_mplock __P((void)); 70int try_mplock __P((void)); 71#ifdef RECURSIVE_MPINTRLOCK 72void get_mpintrlock __P((void)); 73void rel_mpintrlock __P((void)); 74int try_mpintrlock __P((void)); 75#endif /* RECURSIVE_MPINTRLOCK */ 76 77/* global data in apic_vector.s */ 78extern volatile u_int stopped_cpus; 79extern volatile u_int started_cpus; 80 81extern volatile u_int checkstate_probed_cpus; 82extern volatile u_int checkstate_need_ast; 83extern volatile u_int resched_cpus; 84extern void (*cpustop_restartfunc) __P((void)); 85 86/* functions in apic_ipl.s */ 87void apic_eoi __P((void)); 88u_int io_apic_read __P((int, int)); 89void io_apic_write __P((int, int, u_int)); 90 91/* global data in mp_machdep.c */ 92extern int bsp_apic_ready; 93extern int mp_ncpus; 94extern int mp_naps; 95extern int mp_nbusses; 96extern int mp_napics; 97extern int mp_picmode; 98extern int boot_cpu_id; 99extern vm_offset_t cpu_apic_address; 100extern vm_offset_t io_apic_address[]; 101extern u_int32_t cpu_apic_versions[]; 102extern u_int32_t io_apic_versions[]; 103extern int cpu_num_to_apic_id[]; 104extern int io_num_to_apic_id[]; 105extern int apic_id_to_logical[]; 106#define APIC_INTMAPSIZE 24 107struct apic_intmapinfo { 108 int ioapic; 109 int int_pin; 110 volatile void *apic_address; 111 int redirindex; 112}; 113extern struct apic_intmapinfo int_to_apicintpin[]; 114extern u_int all_cpus; 115extern struct pcb stoppcbs[]; 116 117/* functions in mp_machdep.c */ 118u_int mp_bootaddress __P((u_int)); 119int mp_probe __P((void)); 120void mp_start __P((void)); 121void mp_announce __P((void)); 122u_int isa_apic_mask __P((u_int)); 123int isa_apic_irq __P((int)); 124int pci_apic_irq __P((int, int, int)); 125int apic_irq __P((int, int)); 126int next_apic_irq __P((int)); 127int undirect_isa_irq __P((int)); 128int undirect_pci_irq __P((int)); 129int apic_bus_type __P((int)); 130int apic_src_bus_id __P((int, int)); 131int apic_src_bus_irq __P((int, int)); 132int apic_int_type __P((int, int)); 133int apic_trigger __P((int, int)); 134int apic_polarity __P((int, int)); 135void bsp_apic_configure __P((void)); 136void init_secondary __P((void)); 137void smp_invltlb __P((void)); 138int stop_cpus __P((u_int)); 139int restart_cpus __P((u_int)); 140#ifdef BETTER_CLOCK 141void forward_statclock __P((int pscnt)); 142void forward_hardclock __P((int pscnt)); 143#endif /* BETTER_CLOCK */ 144void forward_signal __P((struct proc *)); 145void forward_roundrobin __P((void)); 146#ifdef APIC_INTR_REORDER 147void set_lapic_isrloc __P((int, int)); 148#endif /* APIC_INTR_REORDER */ 149void smp_rendezvous_action __P((void)); 150void smp_rendezvous __P((void (*)(void *), 151 void (*)(void *), 152 void (*)(void *), 153 void *arg)); 154 155/* global data in mpapic.c */ 156extern volatile lapic_t lapic; 157extern volatile ioapic_t *ioapic[]; 158 159/* functions in mpapic.c */ 160void apic_dump __P((char*)); 161void apic_initialize __P((void)); 162void imen_dump __P((void)); 163int apic_ipi __P((int, int, int)); 164int selected_apic_ipi __P((u_int, int, int)); 165int io_apic_setup __P((int)); 166int ext_int_setup __P((int, int)); 167 168#if defined(READY) 169void clr_io_apic_mask24 __P((int, u_int32_t)); 170void set_io_apic_mask24 __P((int, u_int32_t)); 171#endif /* READY */ 172 173void set_apic_timer __P((int)); 174int read_apic_timer __P((void)); 175void u_sleep __P((int)); 176 177/* global data in init_smp.c */ 178extern int invltlb_ok; 179extern int smp_active; 180extern volatile int smp_idle_loops; 181 182#endif /* !LOCORE */ 183#endif /* SMP || APIC_IO */ 184#endif /* KERNEL */ 185#endif /* _MACHINE_SMP_H_ */ 186