smp.h revision 93018
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 93018 2002-03-23 15:09:35Z bde $ 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_RENDEZVOUS XRENDEZVOUS_OFFSET 55#define IPI_AST XCPUAST_OFFSET 56#define IPI_STOP XCPUSTOP_OFFSET 57#define IPI_HARDCLOCK XHARDCLOCK_OFFSET 58#define IPI_STATCLOCK XSTATCLOCK_OFFSET 59 60/* global data in mpboot.s */ 61extern int bootMP_size; 62 63/* functions in mpboot.s */ 64void bootMP(void); 65 66/* global data in mp_machdep.c */ 67extern int bsp_apic_ready; 68extern int mp_naps; 69extern int mp_nbusses; 70extern int mp_napics; 71extern int mp_picmode; 72extern int boot_cpu_id; 73extern vm_offset_t cpu_apic_address; 74extern vm_offset_t io_apic_address[]; 75extern u_int32_t cpu_apic_versions[]; 76extern u_int32_t *io_apic_versions; 77extern int cpu_num_to_apic_id[]; 78extern int io_num_to_apic_id[]; 79extern int apic_id_to_logical[]; 80#define APIC_INTMAPSIZE 32 81struct apic_intmapinfo { 82 int ioapic; 83 int int_pin; 84 volatile void *apic_address; 85 int redirindex; 86}; 87extern struct apic_intmapinfo int_to_apicintpin[]; 88extern struct pcb stoppcbs[]; 89 90/* functions in mp_machdep.c */ 91void i386_mp_probe(void); 92u_int mp_bootaddress(u_int); 93u_int isa_apic_mask(u_int); 94int isa_apic_irq(int); 95int pci_apic_irq(int, int, int); 96int apic_irq(int, int); 97int next_apic_irq(int); 98int undirect_isa_irq(int); 99int undirect_pci_irq(int); 100int apic_bus_type(int); 101int apic_src_bus_id(int, int); 102int apic_src_bus_irq(int, int); 103int apic_int_type(int, int); 104int apic_trigger(int, int); 105int apic_polarity(int, int); 106void assign_apic_irq(int apic, int intpin, int irq); 107void revoke_apic_irq(int irq); 108void bsp_apic_configure(void); 109void init_secondary(void); 110void smp_invltlb(void); 111void forward_statclock(void); 112void forwarded_statclock(struct trapframe frame); 113void forward_hardclock(void); 114void forwarded_hardclock(struct trapframe frame); 115void ipi_selected(u_int cpus, u_int ipi); 116void ipi_all(u_int ipi); 117void ipi_all_but_self(u_int ipi); 118void ipi_self(u_int ipi); 119#ifdef APIC_INTR_REORDER 120void set_lapic_isrloc(int, int); 121#endif /* APIC_INTR_REORDER */ 122 123/* global data in mpapic.c */ 124extern volatile lapic_t lapic; 125extern volatile ioapic_t **ioapic; 126 127/* functions in mpapic.c */ 128void apic_dump(char*); 129void apic_initialize(void); 130void imen_dump(void); 131int apic_ipi(int, int, int); 132int selected_apic_ipi(u_int, int, int); 133int io_apic_setup(int); 134void io_apic_setup_intpin(int, int); 135void io_apic_set_id(int, int); 136int io_apic_get_id(int); 137int ext_int_setup(int, int); 138 139void set_apic_timer(int); 140int read_apic_timer(void); 141void u_sleep(int); 142u_int io_apic_read(int, int); 143void io_apic_write(int, int, u_int); 144 145#endif /* !LOCORE */ 146#endif /* SMP && !APIC_IO */ 147 148#endif /* _KERNEL */ 149#endif /* _MACHINE_SMP_H_ */ 150