smp.h revision 66277
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 66277 2000-09-22 23:40:10Z 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/* 26 * Maximum number of CPUs we will use. 27 * In the !SMP case we save ourselves a litle space. 28 */ 29#if defined(SMP) 30# define MAXCPU 16 31#else 32# define MAXCPU 1 33#endif /* SMP */ 34 35#if defined(SMP) || defined(APIC_IO) 36 37#ifndef LOCORE 38 39/* 40 * For sending values to POST displays. 41 * XXX FIXME: where does this really belong, isa.h/isa.c perhaps? 42 */ 43extern int current_postcode; /** XXX currently in mp_machdep.c */ 44#define POSTCODE(X) current_postcode = (X), \ 45 outb(0x80, current_postcode) 46#define POSTCODE_LO(X) current_postcode &= 0xf0, \ 47 current_postcode |= ((X) & 0x0f), \ 48 outb(0x80, current_postcode) 49#define POSTCODE_HI(X) current_postcode &= 0x0f, \ 50 current_postcode |= (((X) << 4) & 0xf0), \ 51 outb(0x80, current_postcode) 52 53 54#include <machine/apic.h> 55 56/* global data in mpboot.s */ 57extern int bootMP_size; 58 59/* functions in mpboot.s */ 60void bootMP __P((void)); 61 62/* global data in apic_vector.s */ 63extern volatile u_int stopped_cpus; 64extern volatile u_int started_cpus; 65 66extern volatile u_int checkstate_probed_cpus; 67extern volatile u_int checkstate_need_ast; 68extern volatile u_int resched_cpus; 69extern void (*cpustop_restartfunc) __P((void)); 70 71/* functions in apic_ipl.s */ 72void apic_eoi __P((void)); 73u_int io_apic_read __P((int, int)); 74void io_apic_write __P((int, int, u_int)); 75 76/* global data in mp_machdep.c */ 77extern int bsp_apic_ready; 78extern int mp_ncpus; 79extern int mp_naps; 80extern int mp_nbusses; 81extern int mp_napics; 82extern int mp_picmode; 83extern int boot_cpu_id; 84extern vm_offset_t cpu_apic_address; 85extern vm_offset_t io_apic_address[]; 86extern u_int32_t cpu_apic_versions[]; 87extern u_int32_t *io_apic_versions; 88extern int cpu_num_to_apic_id[]; 89extern int io_num_to_apic_id[]; 90extern int apic_id_to_logical[]; 91#define APIC_INTMAPSIZE 24 92struct apic_intmapinfo { 93 int ioapic; 94 int int_pin; 95 volatile void *apic_address; 96 int redirindex; 97}; 98extern struct apic_intmapinfo int_to_apicintpin[]; 99extern u_int all_cpus; 100extern struct pcb stoppcbs[]; 101 102/* functions in mp_machdep.c */ 103u_int mp_bootaddress __P((u_int)); 104int mp_probe __P((void)); 105void mp_start __P((void)); 106void mp_announce __P((void)); 107u_int isa_apic_mask __P((u_int)); 108int isa_apic_irq __P((int)); 109int pci_apic_irq __P((int, int, int)); 110int apic_irq __P((int, int)); 111int next_apic_irq __P((int)); 112int undirect_isa_irq __P((int)); 113int undirect_pci_irq __P((int)); 114int apic_bus_type __P((int)); 115int apic_src_bus_id __P((int, int)); 116int apic_src_bus_irq __P((int, int)); 117int apic_int_type __P((int, int)); 118int apic_trigger __P((int, int)); 119int apic_polarity __P((int, int)); 120void assign_apic_irq __P((int apic, int intpin, int irq)); 121void revoke_apic_irq __P((int irq)); 122void bsp_apic_configure __P((void)); 123void init_secondary __P((void)); 124void smp_invltlb __P((void)); 125int stop_cpus __P((u_int)); 126int restart_cpus __P((u_int)); 127#ifdef BETTER_CLOCK 128void forward_statclock __P((int pscnt)); 129void forward_hardclock __P((int pscnt)); 130#endif /* BETTER_CLOCK */ 131void forward_signal __P((struct proc *)); 132void forward_roundrobin __P((void)); 133#ifdef APIC_INTR_REORDER 134void set_lapic_isrloc __P((int, int)); 135#endif /* APIC_INTR_REORDER */ 136void smp_rendezvous_action __P((void)); 137void smp_rendezvous __P((void (*)(void *), 138 void (*)(void *), 139 void (*)(void *), 140 void *arg)); 141 142/* global data in mpapic.c */ 143extern volatile lapic_t lapic; 144extern volatile ioapic_t **ioapic; 145 146/* functions in mpapic.c */ 147void apic_dump __P((char*)); 148void apic_initialize __P((void)); 149void imen_dump __P((void)); 150int apic_ipi __P((int, int, int)); 151int selected_apic_ipi __P((u_int, int, int)); 152int io_apic_setup __P((int)); 153void io_apic_set_id __P((int, int)); 154int io_apic_get_id __P((int)); 155int ext_int_setup __P((int, int)); 156 157#if defined(READY) 158void clr_io_apic_mask24 __P((int, u_int32_t)); 159void set_io_apic_mask24 __P((int, u_int32_t)); 160#endif /* READY */ 161 162void set_apic_timer __P((int)); 163int read_apic_timer __P((void)); 164void u_sleep __P((int)); 165 166/* global data in init_smp.c */ 167extern int invltlb_ok; 168extern int smp_active; 169extern int smp_started; 170extern volatile int smp_idle_loops; 171 172#endif /* !LOCORE */ 173#endif /* SMP && !APIC_IO */ 174 175#endif /* _KERNEL */ 176#endif /* _MACHINE_SMP_H_ */ 177