smp.h revision 75393
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 75393 2001-04-10 21:34:13Z jhb $ 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/* global data in mp_machdep.c */ 62extern int bsp_apic_ready; 63extern int mp_ncpus; 64extern int mp_naps; 65extern int mp_nbusses; 66extern int mp_napics; 67extern int mp_picmode; 68extern int boot_cpu_id; 69extern vm_offset_t cpu_apic_address; 70extern vm_offset_t io_apic_address[]; 71extern u_int32_t cpu_apic_versions[]; 72extern u_int32_t *io_apic_versions; 73extern int cpu_num_to_apic_id[]; 74extern int io_num_to_apic_id[]; 75extern int apic_id_to_logical[]; 76#define APIC_INTMAPSIZE 32 77struct apic_intmapinfo { 78 int ioapic; 79 int int_pin; 80 volatile void *apic_address; 81 int redirindex; 82}; 83extern struct apic_intmapinfo int_to_apicintpin[]; 84extern u_int all_cpus; 85extern struct pcb stoppcbs[]; 86 87/* functions in mp_machdep.c */ 88u_int mp_bootaddress __P((u_int)); 89int mp_probe __P((void)); 90void mp_start __P((void)); 91void mp_announce __P((void)); 92u_int isa_apic_mask __P((u_int)); 93int isa_apic_irq __P((int)); 94int pci_apic_irq __P((int, int, int)); 95int apic_irq __P((int, int)); 96int next_apic_irq __P((int)); 97int undirect_isa_irq __P((int)); 98int undirect_pci_irq __P((int)); 99int apic_bus_type __P((int)); 100int apic_src_bus_id __P((int, int)); 101int apic_src_bus_irq __P((int, int)); 102int apic_int_type __P((int, int)); 103int apic_trigger __P((int, int)); 104int apic_polarity __P((int, int)); 105void assign_apic_irq __P((int apic, int intpin, int irq)); 106void revoke_apic_irq __P((int irq)); 107void bsp_apic_configure __P((void)); 108void init_secondary __P((void)); 109void smp_invltlb __P((void)); 110int stop_cpus __P((u_int)); 111int restart_cpus __P((u_int)); 112void forward_statclock __P((int pscnt)); 113void forward_hardclock __P((int pscnt)); 114void forward_signal __P((struct proc *)); 115void forward_roundrobin __P((void)); 116#ifdef APIC_INTR_REORDER 117void set_lapic_isrloc __P((int, int)); 118#endif /* APIC_INTR_REORDER */ 119void smp_rendezvous_action __P((void)); 120void smp_rendezvous __P((void (*)(void *), 121 void (*)(void *), 122 void (*)(void *), 123 void *arg)); 124 125/* global data in mpapic.c */ 126extern volatile lapic_t lapic; 127extern volatile ioapic_t **ioapic; 128 129/* functions in mpapic.c */ 130void apic_dump __P((char*)); 131void apic_initialize __P((void)); 132void imen_dump __P((void)); 133int apic_ipi __P((int, int, int)); 134int selected_apic_ipi __P((u_int, int, int)); 135int io_apic_setup __P((int)); 136void io_apic_setup_intpin __P((int, int)); 137void io_apic_set_id __P((int, int)); 138int io_apic_get_id __P((int)); 139int ext_int_setup __P((int, int)); 140 141void set_apic_timer __P((int)); 142int read_apic_timer __P((void)); 143void u_sleep __P((int)); 144u_int io_apic_read __P((int, int)); 145void io_apic_write __P((int, int, u_int)); 146 147 148/* global data in init_smp.c */ 149extern int invltlb_ok; 150extern int smp_active; 151extern int smp_started; 152extern volatile int smp_idle_loops; 153 154#endif /* !LOCORE */ 155#endif /* SMP && !APIC_IO */ 156 157#endif /* _KERNEL */ 158#endif /* _MACHINE_SMP_H_ */ 159