xref: /freebsd-10.2-release/sys/i386/include/smp.h

/*
 * ----------------------------------------------------------------------------
 * "THE BEER-WARE LICENSE" (Revision 42):
 * <phk@FreeBSD.org> wrote this file.  As long as you retain this notice you
 * can do whatever you want with this stuff. If we meet some day, and you think
 * this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
 * ----------------------------------------------------------------------------
 *
 * $FreeBSD: head/sys/i386/include/smp.h 138528 2004-12-07 20:15:01Z ups $
 *
 */

#ifndef _MACHINE_SMP_H_
#define _MACHINE_SMP_H_

#ifdef _KERNEL

#ifdef SMP

#ifndef LOCORE

/*
 * For sending values to POST displays.
 * XXX FIXME: where does this really belong, isa.h/isa.c perhaps?
 */
extern int current_postcode;  /** XXX currently in mp_machdep.c */
#define POSTCODE(X)	current_postcode = (X), \
			outb(0x80, current_postcode)
#define POSTCODE_LO(X)	current_postcode &= 0xf0, \
			current_postcode |= ((X) & 0x0f), \
			outb(0x80, current_postcode)
#define POSTCODE_HI(X)	current_postcode &= 0x0f, \
			current_postcode |= (((X) << 4) & 0xf0), \
			outb(0x80, current_postcode)

#include <sys/bus.h>
#include <machine/frame.h>
#include <machine/intr_machdep.h>
#include <machine/apicvar.h>

/* global data in mpboot.s */
extern int			bootMP_size;

/* functions in mpboot.s */
void	bootMP(void);

/* global data in mp_machdep.c */
extern int			mp_naps;
extern int			boot_cpu_id;
extern struct pcb		stoppcbs[];
extern struct mtx		smp_tlb_mtx;

/* IPI handlers */
inthand_t
	IDTVEC(invltlb),	/* TLB shootdowns - global */
	IDTVEC(invlpg),		/* TLB shootdowns - 1 page */
	IDTVEC(invlrng),	/* TLB shootdowns - page range */
	IDTVEC(ipi_intr_bitmap_handler), /* Bitmap based IPIs */
	IDTVEC(cpustop),	/* CPU stops & waits to be restarted */
	IDTVEC(rendezvous),	/* handle CPU rendezvous */
	IDTVEC(lazypmap);	/* handle lazy pmap release */

/* functions in mp_machdep.c */
void	cpu_add(u_int apic_id, char boot_cpu);
void	init_secondary(void);
void	ipi_selected(u_int cpus, u_int ipi);
void	ipi_all(u_int ipi);
void	ipi_all_but_self(u_int ipi);
void	ipi_self(u_int ipi);
void	forward_statclock(void);
void	forward_hardclock(void);
void 	ipi_bitmap_handler(struct clockframe frame);
u_int	mp_bootaddress(u_int);
int	mp_grab_cpu_hlt(void);
void	mp_topology(void);
void	smp_invlpg(vm_offset_t addr);
void	smp_masked_invlpg(u_int mask, vm_offset_t addr);
void	smp_invlpg_range(vm_offset_t startva, vm_offset_t endva);
void	smp_masked_invlpg_range(u_int mask, vm_offset_t startva,
	    vm_offset_t endva);
void	smp_invltlb(void);
void	smp_masked_invltlb(u_int mask);

#endif /* !LOCORE */
#endif /* SMP */

#endif /* _KERNEL */
#endif /* _MACHINE_SMP_H_ */