smp.h revision 65557
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: head/sys/i386/include/smp.h 65557 2000-09-07 01:33:02Z jasone $ 10 * 11 */ 12 13#ifndef _MACHINE_SMP_H_ 14#define _MACHINE_SMP_H_ 15 16#ifdef _KERNEL 17 18#ifdef I386_CPU 19#error SMP not supported with I386_CPU 20#endif 21#if defined(SMP) && !defined(APIC_IO) 22# error APIC_IO required for SMP, add "options APIC_IO" to your config file. 23#endif /* SMP && !APIC_IO */ 24 25/* Number of CPUs. */ 26#if defined(SMP) && !defined(NCPU) 27# define NCPU 2 28#endif /* SMP && NCPU */ 29 30/* Number of IO APICs. */ 31#if defined(APIC_IO) && !defined(NAPIC) 32# define NAPIC 2 33#endif /* SMP && NAPIC */ 34 35 36#if defined(SMP) || defined(APIC_IO) 37 38#ifndef LOCORE 39 40/* 41 * For sending values to POST displays. 42 * XXX FIXME: where does this really belong, isa.h/isa.c perhaps? 43 */ 44extern int current_postcode; /** XXX currently in mp_machdep.c */ 45#define POSTCODE(X) current_postcode = (X), \ 46 outb(0x80, current_postcode) 47#define POSTCODE_LO(X) current_postcode &= 0xf0, \ 48 current_postcode |= ((X) & 0x0f), \ 49 outb(0x80, current_postcode) 50#define POSTCODE_HI(X) current_postcode &= 0x0f, \ 51 current_postcode |= (((X) << 4) & 0xf0), \ 52 outb(0x80, current_postcode) 53 54 55#include <machine/apic.h> 56 57/* global data in mpboot.s */ 58extern int bootMP_size; 59 60/* functions in mpboot.s */ 61void bootMP __P((void)); 62 63/* global data in apic_vector.s */ 64extern volatile u_int stopped_cpus; 65extern volatile u_int started_cpus; 66 67extern volatile u_int checkstate_probed_cpus; 68extern volatile u_int checkstate_need_ast; 69extern volatile u_int resched_cpus; 70extern void (*cpustop_restartfunc) __P((void)); 71 72/* functions in apic_ipl.s */ 73void apic_eoi __P((void)); 74u_int io_apic_read __P((int, int)); 75void io_apic_write __P((int, int, u_int)); 76 77/* global data in mp_machdep.c */ 78extern int bsp_apic_ready; 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[]; 92#define APIC_INTMAPSIZE 24 93struct apic_intmapinfo { 94 int ioapic; 95 int int_pin; 96 volatile void *apic_address; 97 int redirindex; 98}; 99extern struct apic_intmapinfo int_to_apicintpin[]; 100extern u_int all_cpus; 101extern struct pcb stoppcbs[]; 102 103/* functions in mp_machdep.c */ 104u_int mp_bootaddress __P((u_int)); 105int mp_probe __P((void)); 106void mp_start __P((void)); 107void mp_announce __P((void)); 108u_int isa_apic_mask __P((u_int)); 109int isa_apic_irq __P((int)); 110int pci_apic_irq __P((int, int, int)); 111int apic_irq __P((int, int)); 112int next_apic_irq __P((int)); 113int undirect_isa_irq __P((int)); 114int undirect_pci_irq __P((int)); 115int apic_bus_type __P((int)); 116int apic_src_bus_id __P((int, int)); 117int apic_src_bus_irq __P((int, int)); 118int apic_int_type __P((int, int)); 119int apic_trigger __P((int, int)); 120int apic_polarity __P((int, int)); 121void assign_apic_irq __P((int apic, int intpin, int irq)); 122void revoke_apic_irq __P((int irq)); 123void bsp_apic_configure __P((void)); 124void init_secondary __P((void)); 125void smp_invltlb __P((void)); 126int stop_cpus __P((u_int)); 127int restart_cpus __P((u_int)); 128#ifdef BETTER_CLOCK 129void forward_statclock __P((int pscnt)); 130void forward_hardclock __P((int pscnt)); 131#endif /* BETTER_CLOCK */ 132void forward_signal __P((struct proc *)); 133void forward_roundrobin __P((void)); 134#ifdef APIC_INTR_REORDER 135void set_lapic_isrloc __P((int, int)); 136#endif /* APIC_INTR_REORDER */ 137void smp_rendezvous_action __P((void)); 138void smp_rendezvous __P((void (*)(void *), 139 void (*)(void *), 140 void (*)(void *), 141 void *arg)); 142 143/* global data in mpapic.c */ 144extern volatile lapic_t lapic; 145extern volatile ioapic_t *ioapic[]; 146 147/* functions in mpapic.c */ 148void apic_dump __P((char*)); 149void apic_initialize __P((void)); 150void imen_dump __P((void)); 151int apic_ipi __P((int, int, int)); 152int selected_apic_ipi __P((u_int, int, int)); 153int io_apic_setup __P((int)); 154void io_apic_set_id __P((int, int)); 155int io_apic_get_id __P((int)); 156int ext_int_setup __P((int, int)); 157 158#if defined(READY) 159void clr_io_apic_mask24 __P((int, u_int32_t)); 160void set_io_apic_mask24 __P((int, u_int32_t)); 161#endif /* READY */ 162 163void set_apic_timer __P((int)); 164int read_apic_timer __P((void)); 165void u_sleep __P((int)); 166 167/* global data in init_smp.c */ 168extern int invltlb_ok; 169extern int smp_active; 170extern int smp_started; 171extern volatile int smp_idle_loops; 172 173#endif /* !LOCORE */ 174#endif /* SMP && !APIC_IO */ 175 176#endif /* _KERNEL */ 177#endif /* _MACHINE_SMP_H_ */ 178