d1693e1701
There is some unresolved badness that has been eluding me, particularly affecting uniprocessor kernels. Turning off PG_G helped (which is a bad sign) but didn't solve it entirely. Userland programs still crashed.
150 lines
4.4 KiB
C
150 lines
4.4 KiB
C
/*
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* ----------------------------------------------------------------------------
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* "THE BEER-WARE LICENSE" (Revision 42):
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* <phk@FreeBSD.org> wrote this file. As long as you retain this notice you
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* can do whatever you want with this stuff. If we meet some day, and you think
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* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
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* ----------------------------------------------------------------------------
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*
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* $FreeBSD$
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*
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*/
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#ifndef _MACHINE_SMP_H_
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#define _MACHINE_SMP_H_
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#ifdef _KERNEL
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#if defined(SMP) && defined(I386_CPU) && !defined(COMPILING_LINT)
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#error SMP not supported with I386_CPU
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#endif
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#if defined(SMP) && !defined(APIC_IO)
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# error APIC_IO required for SMP, add "options APIC_IO" to your config file.
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#endif /* SMP && !APIC_IO */
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#if defined(SMP) || defined(APIC_IO)
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#ifndef LOCORE
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/*
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* For sending values to POST displays.
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* XXX FIXME: where does this really belong, isa.h/isa.c perhaps?
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*/
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extern int current_postcode; /** XXX currently in mp_machdep.c */
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#define POSTCODE(X) current_postcode = (X), \
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outb(0x80, current_postcode)
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#define POSTCODE_LO(X) current_postcode &= 0xf0, \
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current_postcode |= ((X) & 0x0f), \
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outb(0x80, current_postcode)
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#define POSTCODE_HI(X) current_postcode &= 0x0f, \
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current_postcode |= (((X) << 4) & 0xf0), \
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outb(0x80, current_postcode)
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#include <sys/bus.h> /* XXX */
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#include <machine/apic.h>
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#include <machine/frame.h>
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#include <i386/isa/icu.h>
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#include <i386/isa/intr_machdep.h>
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/*
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* Interprocessor interrupts for SMP.
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*/
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#define IPI_INVLTLB XINVLTLB_OFFSET
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#define IPI_RENDEZVOUS XRENDEZVOUS_OFFSET
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#define IPI_AST XCPUAST_OFFSET
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#define IPI_STOP XCPUSTOP_OFFSET
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#define IPI_HARDCLOCK XHARDCLOCK_OFFSET
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#define IPI_STATCLOCK XSTATCLOCK_OFFSET
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/* global data in mpboot.s */
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extern int bootMP_size;
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/* functions in mpboot.s */
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void bootMP __P((void));
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/* global data in mp_machdep.c */
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extern int bsp_apic_ready;
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extern int mp_naps;
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extern int mp_nbusses;
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extern int mp_napics;
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extern int mp_picmode;
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extern int boot_cpu_id;
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extern vm_offset_t cpu_apic_address;
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extern vm_offset_t io_apic_address[];
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extern u_int32_t cpu_apic_versions[];
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extern u_int32_t *io_apic_versions;
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extern int cpu_num_to_apic_id[];
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extern int io_num_to_apic_id[];
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extern int apic_id_to_logical[];
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#define APIC_INTMAPSIZE 32
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struct apic_intmapinfo {
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int ioapic;
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int int_pin;
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volatile void *apic_address;
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int redirindex;
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};
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extern struct apic_intmapinfo int_to_apicintpin[];
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extern struct pcb stoppcbs[];
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/* functions in mp_machdep.c */
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void i386_mp_probe __P((void));
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u_int mp_bootaddress __P((u_int));
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u_int isa_apic_mask __P((u_int));
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int isa_apic_irq __P((int));
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int pci_apic_irq __P((int, int, int));
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int apic_irq __P((int, int));
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int next_apic_irq __P((int));
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int undirect_isa_irq __P((int));
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int undirect_pci_irq __P((int));
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int apic_bus_type __P((int));
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int apic_src_bus_id __P((int, int));
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int apic_src_bus_irq __P((int, int));
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int apic_int_type __P((int, int));
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int apic_trigger __P((int, int));
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int apic_polarity __P((int, int));
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void assign_apic_irq __P((int apic, int intpin, int irq));
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void revoke_apic_irq __P((int irq));
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void bsp_apic_configure __P((void));
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void init_secondary __P((void));
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void smp_invltlb __P((void));
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void forward_statclock __P((void));
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void forwarded_statclock __P((struct trapframe frame));
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void forward_hardclock __P((void));
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void forwarded_hardclock __P((struct trapframe frame));
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void ipi_selected __P((u_int cpus, u_int ipi));
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void ipi_all __P((u_int ipi));
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void ipi_all_but_self __P((u_int ipi));
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void ipi_self __P((u_int ipi));
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#ifdef APIC_INTR_REORDER
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void set_lapic_isrloc __P((int, int));
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#endif /* APIC_INTR_REORDER */
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/* global data in mpapic.c */
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extern volatile lapic_t lapic;
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extern volatile ioapic_t **ioapic;
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/* functions in mpapic.c */
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void apic_dump __P((char*));
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void apic_initialize __P((void));
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void imen_dump __P((void));
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int apic_ipi __P((int, int, int));
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int selected_apic_ipi __P((u_int, int, int));
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int io_apic_setup __P((int));
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void io_apic_setup_intpin __P((int, int));
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void io_apic_set_id __P((int, int));
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int io_apic_get_id __P((int));
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int ext_int_setup __P((int, int));
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void set_apic_timer __P((int));
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int read_apic_timer __P((void));
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void u_sleep __P((int));
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u_int io_apic_read __P((int, int));
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void io_apic_write __P((int, int, u_int));
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#endif /* !LOCORE */
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#endif /* SMP && !APIC_IO */
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#endif /* _KERNEL */
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#endif /* _MACHINE_SMP_H_ */
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