smp.h revision 66296
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 66296 2000-09-23 12:18:06Z ps $ 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 */ 62void apic_eoi __P((void)); 63u_int io_apic_read __P((int, int)); 64void io_apic_write __P((int, int, u_int)); 65 66/* global data in mp_machdep.c */ 67extern int bsp_apic_ready; 68extern int mp_ncpus; 69extern int mp_naps; 70extern int mp_nbusses; 71extern int mp_napics; 72extern int mp_picmode; 73extern int boot_cpu_id; 74extern vm_offset_t cpu_apic_address; 75extern vm_offset_t io_apic_address[]; 76extern u_int32_t cpu_apic_versions[]; 77extern u_int32_t *io_apic_versions; 78extern int cpu_num_to_apic_id[]; 79extern int io_num_to_apic_id[]; 80extern int apic_id_to_logical[]; 81#define APIC_INTMAPSIZE 24 82struct apic_intmapinfo { 83 int ioapic; 84 int int_pin; 85 volatile void *apic_address; 86 int redirindex; 87}; 88extern struct apic_intmapinfo int_to_apicintpin[]; 89extern u_int all_cpus; 90extern struct pcb stoppcbs[]; 91 92/* functions in mp_machdep.c */ 93u_int mp_bootaddress __P((u_int)); 94int mp_probe __P((void)); 95void mp_start __P((void)); 96void mp_announce __P((void)); 97u_int isa_apic_mask __P((u_int)); 98int isa_apic_irq __P((int)); 99int pci_apic_irq __P((int, int, int)); 100int apic_irq __P((int, int)); 101int next_apic_irq __P((int)); 102int undirect_isa_irq __P((int)); 103int undirect_pci_irq __P((int)); 104int apic_bus_type __P((int)); 105int apic_src_bus_id __P((int, int)); 106int apic_src_bus_irq __P((int, int)); 107int apic_int_type __P((int, int)); 108int apic_trigger __P((int, int)); 109int apic_polarity __P((int, int)); 110void assign_apic_irq __P((int apic, int intpin, int irq)); 111void revoke_apic_irq __P((int irq)); 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#ifdef BETTER_CLOCK 118void forward_statclock __P((int pscnt)); 119void forward_hardclock __P((int pscnt)); 120#endif /* BETTER_CLOCK */ 121void forward_signal __P((struct proc *)); 122void forward_roundrobin __P((void)); 123#ifdef APIC_INTR_REORDER 124void set_lapic_isrloc __P((int, int)); 125#endif /* APIC_INTR_REORDER */ 126void smp_rendezvous_action __P((void)); 127void smp_rendezvous __P((void (*)(void *), 128 void (*)(void *), 129 void (*)(void *), 130 void *arg)); 131 132/* global data in mpapic.c */ 133extern volatile lapic_t lapic; 134extern volatile ioapic_t **ioapic; 135 136/* functions in mpapic.c */ 137void apic_dump __P((char*)); 138void apic_initialize __P((void)); 139void imen_dump __P((void)); 140int apic_ipi __P((int, int, int)); 141int selected_apic_ipi __P((u_int, int, int)); 142int io_apic_setup __P((int)); 143void io_apic_set_id __P((int, int)); 144int io_apic_get_id __P((int)); 145int ext_int_setup __P((int, int)); 146 147#if defined(READY) 148void clr_io_apic_mask24 __P((int, u_int32_t)); 149void set_io_apic_mask24 __P((int, u_int32_t)); 150#endif /* READY */ 151 152void set_apic_timer __P((int)); 153int read_apic_timer __P((void)); 154void u_sleep __P((int)); 155 156/* global data in init_smp.c */ 157extern int invltlb_ok; 158extern int smp_active; 159extern int smp_started; 160extern volatile int smp_idle_loops; 161 162#endif /* !LOCORE */ 163#endif /* SMP && !APIC_IO */ 164 165#endif /* _KERNEL */ 166#endif /* _MACHINE_SMP_H_ */ 167