smp.h revision 27616
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 1.13 1997/07/22 18:31:51 smp Exp smp $ 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#if defined(SMP) && !defined(NCPU) 23# define NCPU 2 24#endif /* SMP && NCPU */ 25 26#if defined(SMP) || defined(APIC_IO) 27 28/* 29 * For sending values to POST displays. 30 * XXX FIXME: where does this really belong, isa.h/isa.c perhaps? 31 */ 32extern int current_postcode; /** XXX currently in mp_machdep.c */ 33#define POSTCODE(X) current_postcode = (X), \ 34 outb(0x80, current_postcode) 35#define POSTCODE_LO(X) current_postcode &= 0xf0, \ 36 current_postcode |= ((X) & 0x0f), \ 37 outb(0x80, current_postcode) 38#define POSTCODE_HI(X) current_postcode &= 0x0f, \ 39 current_postcode |= (((X) << 4) & 0xf0), \ 40 outb(0x80, current_postcode) 41 42 43#include <machine/apic.h> 44 45/* global data in mpboot.s */ 46extern int bootMP_size; 47 48/* functions in mpboot.s */ 49void bootMP __P((void)); 50 51/* global data in mplock.s */ 52extern u_int mp_lock; 53 54/* functions in mplock.s */ 55void get_mplock __P((void)); 56void rel_mplock __P((void)); 57void try_mplock __P((void)); 58 59/* global data in apic_vector.s */ 60extern u_int ivectors[]; 61extern volatile u_int stopped_cpus; 62extern volatile u_int started_cpus; 63 64/* global data in apic_ipl.s */ 65extern u_int vec[]; 66extern u_int Xintr8254; 67extern u_int mask8254; 68 69/* functions in apic_ipl.s */ 70void vec8254 __P((void)); 71void INTREN __P((u_int)); 72void INTRDIS __P((u_int)); 73void apic_eoi __P((void)); 74u_int io_apic_read __P((int, int)); 75void io_apic_write __P((int, int, u_int)); 76void write_io_apic_mask24 __P((int, u_int)); 77 78/* global data in mp_machdep.c */ 79extern int mp_ncpus; 80extern int mp_naps; 81extern int mp_nbusses; 82extern int mp_napics; 83extern int mp_picmode; 84extern int boot_cpu_id; 85extern vm_offset_t cpu_apic_address; 86extern vm_offset_t io_apic_address[]; 87extern u_int32_t cpu_apic_versions[]; 88extern u_int32_t io_apic_versions[]; 89extern int cpu_num_to_apic_id[]; 90extern int io_num_to_apic_id[]; 91extern int apic_id_to_logical[]; 92extern u_int all_cpus; 93extern u_int SMP_prvpt[]; 94extern u_char SMP_ioapic[]; 95 96/* functions in mp_machdep.c */ 97u_int mp_bootaddress __P((u_int)); 98int mp_probe __P((void)); 99void mp_start __P((void)); 100void mp_announce __P((void)); 101u_int isa_apic_mask __P((u_int)); 102int isa_apic_pin __P((int)); 103int pci_apic_pin __P((int, int, int)); 104int undirect_isa_irq __P((int)); 105int undirect_pci_irq __P((int)); 106int apic_bus_type __P((int)); 107int apic_src_bus_id __P((int, int)); 108int apic_src_bus_irq __P((int, int)); 109int apic_int_type __P((int, int)); 110int apic_trigger __P((int, int)); 111int apic_polarity __P((int, int)); 112void bsp_apic_configure __P((void)); 113void init_secondary __P((void)); 114void smp_invltlb __P((void)); 115int stop_cpus __P((u_int)); 116int restart_cpus __P((u_int)); 117 118/* global data in mpapic.c */ 119extern volatile lapic_t lapic; 120 121#if defined(MULTIPLE_IOAPICS) 122#error MULTIPLE_IOAPICSXXX 123#else 124extern volatile ioapic_t *ioapic[]; 125#endif /* MULTIPLE_IOAPICS */ 126 127/* functions in mpapic.c */ 128void apic_dump __P((char*)); 129void apic_initialize __P((void)); 130void imen_dump __P((void)); 131int apic_ipi __P((int, int, int)); 132int selected_apic_ipi __P((u_int, int, int)); 133int io_apic_setup __P((int)); 134int ext_int_setup __P((int, int)); 135 136#if defined(READY) 137void clr_io_apic_mask24 __P((int, u_int32_t)); 138void set_io_apic_mask24 __P((int, u_int32_t)); 139#endif /* READY */ 140 141void set_apic_timer __P((int)); 142int read_apic_timer __P((void)); 143void u_sleep __P((int)); 144 145/* global data in init_smp.c */ 146extern int smp_active; 147extern int invltlb_ok; 148 149/* 'private' global data in locore.s */ 150extern volatile u_int cpuid; 151extern volatile u_int cpu_lockid; 152extern volatile u_int other_cpus; 153 154#endif /* SMP || APIC_IO */ 155#endif /* KERNEL */ 156#endif /* _MACHINE_SMP_H_ */ 157