smp.h revision 91260
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 91260 2002-02-25 23:49:51Z 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 <sys/bus.h> /* XXX */ 45#include <machine/apic.h> 46#include <machine/frame.h> 47#include <i386/isa/icu.h> 48#include <i386/isa/intr_machdep.h> 49 50/* 51 * Interprocessor interrupts for SMP. 52 */ 53#define IPI_INVLTLB XINVLTLB_OFFSET 54#define IPI_INVLPG XINVLPG_OFFSET 55#define IPI_INVLRNG XINVLRNG_OFFSET 56#define IPI_RENDEZVOUS XRENDEZVOUS_OFFSET 57#define IPI_AST XCPUAST_OFFSET 58#define IPI_STOP XCPUSTOP_OFFSET 59#define IPI_HARDCLOCK XHARDCLOCK_OFFSET 60#define IPI_STATCLOCK XSTATCLOCK_OFFSET 61 62/* global data in mpboot.s */ 63extern int bootMP_size; 64 65/* functions in mpboot.s */ 66void bootMP __P((void)); 67 68/* global data in mp_machdep.c */ 69extern int bsp_apic_ready; 70extern int mp_naps; 71extern int mp_nbusses; 72extern int mp_napics; 73extern int mp_picmode; 74extern int boot_cpu_id; 75extern vm_offset_t cpu_apic_address; 76extern vm_offset_t io_apic_address[]; 77extern u_int32_t cpu_apic_versions[]; 78extern u_int32_t *io_apic_versions; 79extern int cpu_num_to_apic_id[]; 80extern int io_num_to_apic_id[]; 81extern int apic_id_to_logical[]; 82#define APIC_INTMAPSIZE 32 83struct apic_intmapinfo { 84 int ioapic; 85 int int_pin; 86 volatile void *apic_address; 87 int redirindex; 88}; 89extern struct apic_intmapinfo int_to_apicintpin[]; 90extern struct pcb stoppcbs[]; 91 92/* functions in mp_machdep.c */ 93void i386_mp_probe __P((void)); 94u_int mp_bootaddress __P((u_int)); 95u_int isa_apic_mask __P((u_int)); 96int isa_apic_irq __P((int)); 97int pci_apic_irq __P((int, int, int)); 98int apic_irq __P((int, int)); 99int next_apic_irq __P((int)); 100int undirect_isa_irq __P((int)); 101int undirect_pci_irq __P((int)); 102int apic_bus_type __P((int)); 103int apic_src_bus_id __P((int, int)); 104int apic_src_bus_irq __P((int, int)); 105int apic_int_type __P((int, int)); 106int apic_trigger __P((int, int)); 107int apic_polarity __P((int, int)); 108void assign_apic_irq __P((int apic, int intpin, int irq)); 109void revoke_apic_irq __P((int irq)); 110void bsp_apic_configure __P((void)); 111void init_secondary __P((void)); 112void forward_statclock __P((void)); 113void forwarded_statclock __P((struct trapframe frame)); 114void forward_hardclock __P((void)); 115void forwarded_hardclock __P((struct trapframe frame)); 116void ipi_selected __P((u_int cpus, u_int ipi)); 117void ipi_all __P((u_int ipi)); 118void ipi_all_but_self __P((u_int ipi)); 119void ipi_self __P((u_int ipi)); 120#ifdef APIC_INTR_REORDER 121void set_lapic_isrloc __P((int, int)); 122#endif /* APIC_INTR_REORDER */ 123 124/* global data in mpapic.c */ 125extern volatile lapic_t lapic; 126extern volatile ioapic_t **ioapic; 127 128/* functions in mpapic.c */ 129void apic_dump __P((char*)); 130void apic_initialize __P((void)); 131void imen_dump __P((void)); 132int apic_ipi __P((int, int, int)); 133int selected_apic_ipi __P((u_int, int, int)); 134int io_apic_setup __P((int)); 135void io_apic_setup_intpin __P((int, int)); 136void io_apic_set_id __P((int, int)); 137int io_apic_get_id __P((int)); 138int ext_int_setup __P((int, int)); 139 140void set_apic_timer __P((int)); 141int read_apic_timer __P((void)); 142void u_sleep __P((int)); 143u_int io_apic_read __P((int, int)); 144void io_apic_write __P((int, int, u_int)); 145 146#endif /* !LOCORE */ 147#endif /* SMP && !APIC_IO */ 148 149#endif /* _KERNEL */ 150#endif /* _MACHINE_SMP_H_ */ 151