smp.h revision 36135
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 1.42 1998/04/01 21:07:36 tegge Exp $ 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)); 70int try_mplock __P((void)); 71#ifdef RECURSIVE_MPINTRLOCK 72void get_mpintrlock __P((void)); 73void rel_mpintrlock __P((void)); 74int try_mpintrlock __P((void)); 75#endif /* RECURSIVE_MPINTRLOCK */ 76 77/* global data in apic_vector.s */ 78extern volatile u_int stopped_cpus; 79extern volatile u_int started_cpus; 80 81extern volatile u_int checkstate_probed_cpus; 82extern volatile u_int checkstate_need_ast; 83extern volatile u_int resched_cpus; 84extern void (*cpustop_restartfunc) __P((void)); 85 86/* functions in apic_ipl.s */ 87void apic_eoi __P((void)); 88u_int io_apic_read __P((int, int)); 89void io_apic_write __P((int, int, u_int)); 90 91/* global data in mp_machdep.c */ 92extern int bsp_apic_ready; 93extern int mp_ncpus; 94extern int mp_naps; 95extern int mp_nbusses; 96extern int mp_napics; 97extern int mp_picmode; 98extern int boot_cpu_id; 99extern vm_offset_t cpu_apic_address; 100extern vm_offset_t io_apic_address[]; 101extern u_int32_t cpu_apic_versions[]; 102extern u_int32_t io_apic_versions[]; 103extern int cpu_num_to_apic_id[]; 104extern int io_num_to_apic_id[]; 105extern int apic_id_to_logical[]; 106extern u_int all_cpus; 107extern u_char SMP_ioapic[]; 108extern struct pcb stoppcbs[]; 109 110/* functions in mp_machdep.c */ 111u_int mp_bootaddress __P((u_int)); 112int mp_probe __P((void)); 113void mp_start __P((void)); 114void mp_announce __P((void)); 115u_int isa_apic_mask __P((u_int)); 116int isa_apic_pin __P((int)); 117int pci_apic_pin __P((int, int, int)); 118int next_apic_pin __P((int)); 119int undirect_isa_irq __P((int)); 120int undirect_pci_irq __P((int)); 121int apic_bus_type __P((int)); 122int apic_src_bus_id __P((int, int)); 123int apic_src_bus_irq __P((int, int)); 124int apic_int_type __P((int, int)); 125int apic_trigger __P((int, int)); 126int apic_polarity __P((int, int)); 127void bsp_apic_configure __P((void)); 128void init_secondary __P((void)); 129void smp_invltlb __P((void)); 130int stop_cpus __P((u_int)); 131int restart_cpus __P((u_int)); 132#ifdef BETTER_CLOCK 133void forward_statclock __P((int pscnt)); 134void forward_hardclock __P((int pscnt)); 135#endif /* BETTER_CLOCK */ 136void forward_signal __P((struct proc *)); 137void forward_roundrobin __P((void)); 138#ifdef APIC_INTR_REORDER 139void set_lapic_isrloc __P((int, int)); 140#endif /* APIC_INTR_REORDER */ 141 142/* global data in mpapic.c */ 143extern volatile lapic_t lapic; 144 145#if defined(MULTIPLE_IOAPICS) 146#error MULTIPLE_IOAPICSXXX 147#else 148extern volatile ioapic_t *ioapic[]; 149#endif /* MULTIPLE_IOAPICS */ 150 151/* functions in mpapic.c */ 152void apic_dump __P((char*)); 153void apic_initialize __P((void)); 154void imen_dump __P((void)); 155int apic_ipi __P((int, int, int)); 156int selected_apic_ipi __P((u_int, int, int)); 157int io_apic_setup __P((int)); 158int ext_int_setup __P((int, int)); 159 160#if defined(READY) 161void clr_io_apic_mask24 __P((int, u_int32_t)); 162void set_io_apic_mask24 __P((int, u_int32_t)); 163#endif /* READY */ 164 165void set_apic_timer __P((int)); 166int read_apic_timer __P((void)); 167void u_sleep __P((int)); 168 169/* global data in init_smp.c */ 170extern int invltlb_ok; 171extern int smp_active; 172extern volatile int smp_idle_loops; 173 174/* 'private' global data in locore.s */ 175extern volatile u_int cpuid; 176extern volatile u_int cpu_lockid; 177extern int inside_intr; 178extern volatile u_int other_cpus; 179 180#endif /* !LOCORE */ 181#endif /* SMP || APIC_IO */ 182#endif /* KERNEL */ 183#endif /* _MACHINE_SMP_H_ */ 184