smp.h revision 29213
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 1.27 1997/09/05 18:08:57 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/* 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)); 70void try_mplock __P((void)); 71#ifdef RECURSIVE_MPINTRLOCK 72void get_mpintrlock __P((void)); 73void rel_mpintrlock __P((void)); 74void try_mpintrlock __P((void)); 75#endif /* RECURSIVE_MPINTRLOCK */ 76 77/* global data in apic_vector.s */ 78extern u_int ivectors[]; 79extern volatile u_int stopped_cpus; 80extern volatile u_int started_cpus; 81 82/* global data in apic_ipl.s */ 83extern u_int vec[]; 84extern u_int Xintr8254; 85extern u_int mask8254; 86 87/* functions in apic_ipl.s */ 88void vec8254 __P((void)); 89void INTREN __P((u_int)); 90void INTRDIS __P((u_int)); 91void apic_eoi __P((void)); 92u_int io_apic_read __P((int, int)); 93void io_apic_write __P((int, int, u_int)); 94 95/* global data in mp_machdep.c */ 96extern int bsp_apic_ready; 97extern int mp_ncpus; 98extern int mp_naps; 99extern int mp_nbusses; 100extern int mp_napics; 101extern int mp_picmode; 102extern int boot_cpu_id; 103extern vm_offset_t cpu_apic_address; 104extern vm_offset_t io_apic_address[]; 105extern u_int32_t cpu_apic_versions[]; 106extern u_int32_t io_apic_versions[]; 107extern int cpu_num_to_apic_id[]; 108extern int io_num_to_apic_id[]; 109extern int apic_id_to_logical[]; 110extern u_int all_cpus; 111extern u_char SMP_ioapic[]; 112 113/* functions in mp_machdep.c */ 114u_int mp_bootaddress __P((u_int)); 115int mp_probe __P((void)); 116void mp_start __P((void)); 117void mp_announce __P((void)); 118u_int isa_apic_mask __P((u_int)); 119int isa_apic_pin __P((int)); 120int pci_apic_pin __P((int, int, int)); 121int undirect_isa_irq __P((int)); 122int undirect_pci_irq __P((int)); 123int apic_bus_type __P((int)); 124int apic_src_bus_id __P((int, int)); 125int apic_src_bus_irq __P((int, int)); 126int apic_int_type __P((int, int)); 127int apic_trigger __P((int, int)); 128int apic_polarity __P((int, int)); 129void bsp_apic_configure __P((void)); 130void init_secondary __P((void)); 131void smp_invltlb __P((void)); 132int stop_cpus __P((u_int)); 133int restart_cpus __P((u_int)); 134 135/* global data in mpapic.c */ 136extern volatile lapic_t lapic; 137 138#if defined(MULTIPLE_IOAPICS) 139#error MULTIPLE_IOAPICSXXX 140#else 141extern volatile ioapic_t *ioapic[]; 142#endif /* MULTIPLE_IOAPICS */ 143 144/* functions in mpapic.c */ 145void apic_dump __P((char*)); 146void apic_initialize __P((void)); 147void imen_dump __P((void)); 148int apic_ipi __P((int, int, int)); 149int selected_apic_ipi __P((u_int, int, int)); 150int io_apic_setup __P((int)); 151int ext_int_setup __P((int, int)); 152 153#if defined(READY) 154void clr_io_apic_mask24 __P((int, u_int32_t)); 155void set_io_apic_mask24 __P((int, u_int32_t)); 156#endif /* READY */ 157 158void set_apic_timer __P((int)); 159int read_apic_timer __P((void)); 160void u_sleep __P((int)); 161 162/* global data in init_smp.c */ 163extern int invltlb_ok; 164extern int smp_active; 165extern volatile int smp_idle_loops; 166 167/* 'private' global data in locore.s */ 168extern volatile u_int cpuid; 169extern volatile u_int cpu_lockid; 170extern int inside_intr; 171extern volatile u_int other_cpus; 172 173#endif /* !LOCORE */ 174#endif /* SMP || APIC_IO */ 175#endif /* KERNEL */ 176#endif /* _MACHINE_SMP_H_ */ 177