smp.h revision 69646
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 69646 2000-12-06 00:38:04Z peter $ 10 * 11 */ 12 13#ifndef _MACHINE_SMP_H_ 14#define _MACHINE_SMP_H_ 15 16#ifdef _KERNEL 17 18#if defined(SMP) && defined(I386_CPU) && !defined(COMPILING_LINT) 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#if defined(SMP) || defined(APIC_IO) 26 27#ifndef LOCORE 28 29/* 30 * For sending values to POST displays. 31 * XXX FIXME: where does this really belong, isa.h/isa.c perhaps? 32 */ 33extern int current_postcode; /** XXX currently in mp_machdep.c */ 34#define POSTCODE(X) current_postcode = (X), \ 35 outb(0x80, current_postcode) 36#define POSTCODE_LO(X) current_postcode &= 0xf0, \ 37 current_postcode |= ((X) & 0x0f), \ 38 outb(0x80, current_postcode) 39#define POSTCODE_HI(X) current_postcode &= 0x0f, \ 40 current_postcode |= (((X) << 4) & 0xf0), \ 41 outb(0x80, current_postcode) 42 43 44#include <machine/apic.h> 45 46/* global data in mpboot.s */ 47extern int bootMP_size; 48 49/* functions in mpboot.s */ 50void bootMP __P((void)); 51 52/* global data in apic_vector.s */ 53extern volatile u_int stopped_cpus; 54extern volatile u_int started_cpus; 55 56extern volatile u_int checkstate_probed_cpus; 57extern volatile u_int checkstate_need_ast; 58extern volatile u_int resched_cpus; 59extern void (*cpustop_restartfunc) __P((void)); 60 61/* functions in apic_ipl.s */ 62u_int io_apic_read __P((int, int)); 63void io_apic_write __P((int, int, u_int)); 64 65/* global data in mp_machdep.c */ 66extern int bsp_apic_ready; 67extern int mp_ncpus; 68extern int mp_naps; 69extern int mp_nbusses; 70extern int mp_napics; 71extern int mp_picmode; 72extern int boot_cpu_id; 73extern vm_offset_t cpu_apic_address; 74extern vm_offset_t io_apic_address[]; 75extern u_int32_t cpu_apic_versions[]; 76extern u_int32_t *io_apic_versions; 77extern int cpu_num_to_apic_id[]; 78extern int io_num_to_apic_id[]; 79extern int apic_id_to_logical[]; 80#define APIC_INTMAPSIZE 32 81struct apic_intmapinfo { 82 int ioapic; 83 int int_pin; 84 volatile void *apic_address; 85 int redirindex; 86}; 87extern struct apic_intmapinfo int_to_apicintpin[]; 88extern u_int all_cpus; 89extern struct pcb stoppcbs[]; 90 91/* functions in mp_machdep.c */ 92u_int mp_bootaddress __P((u_int)); 93int mp_probe __P((void)); 94void mp_start __P((void)); 95void mp_announce __P((void)); 96u_int isa_apic_mask __P((u_int)); 97int isa_apic_irq __P((int)); 98int pci_apic_irq __P((int, int, int)); 99int apic_irq __P((int, int)); 100int next_apic_irq __P((int)); 101int undirect_isa_irq __P((int)); 102int undirect_pci_irq __P((int)); 103int apic_bus_type __P((int)); 104int apic_src_bus_id __P((int, int)); 105int apic_src_bus_irq __P((int, int)); 106int apic_int_type __P((int, int)); 107int apic_trigger __P((int, int)); 108int apic_polarity __P((int, int)); 109void assign_apic_irq __P((int apic, int intpin, int irq)); 110void revoke_apic_irq __P((int irq)); 111void bsp_apic_configure __P((void)); 112void init_secondary __P((void)); 113void smp_invltlb __P((void)); 114int stop_cpus __P((u_int)); 115int restart_cpus __P((u_int)); 116#ifdef BETTER_CLOCK 117void forward_statclock __P((int pscnt)); 118void forward_hardclock __P((int pscnt)); 119#endif /* BETTER_CLOCK */ 120void forward_signal __P((struct proc *)); 121void forward_roundrobin __P((void)); 122#ifdef APIC_INTR_REORDER 123void set_lapic_isrloc __P((int, int)); 124#endif /* APIC_INTR_REORDER */ 125void smp_rendezvous_action __P((void)); 126void smp_rendezvous __P((void (*)(void *), 127 void (*)(void *), 128 void (*)(void *), 129 void *arg)); 130 131/* global data in mpapic.c */ 132extern volatile lapic_t lapic; 133extern volatile ioapic_t **ioapic; 134 135/* functions in mpapic.c */ 136void apic_dump __P((char*)); 137void apic_initialize __P((void)); 138void imen_dump __P((void)); 139int apic_ipi __P((int, int, int)); 140int selected_apic_ipi __P((u_int, int, int)); 141int io_apic_setup __P((int)); 142void io_apic_set_id __P((int, int)); 143int io_apic_get_id __P((int)); 144int ext_int_setup __P((int, int)); 145 146void set_apic_timer __P((int)); 147int read_apic_timer __P((void)); 148void u_sleep __P((int)); 149 150/* global data in init_smp.c */ 151extern int invltlb_ok; 152extern int smp_active; 153extern int smp_started; 154extern volatile int smp_idle_loops; 155 156#endif /* !LOCORE */ 157#endif /* SMP && !APIC_IO */ 158 159#endif /* _KERNEL */ 160#endif /* _MACHINE_SMP_H_ */ 161