/* $OpenBSD: ipifuncs.c,v 1.7 2007/05/25 16:22:11 art Exp $ */
/* $NetBSD: ipifuncs.c,v 1.1 2003/04/26 18:39:28 fvdl Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by RedBack Networks Inc.
*
* Author: Bill Sommerfeld
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
/*
* Interprocessor interrupt handlers.
*/
#include <sys/param.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <uvm/uvm_extern.h>
#include <machine/intr.h>
#include <machine/atomic.h>
#include <machine/cpuvar.h>
#include <machine/i82093var.h>
#include <machine/i82489reg.h>
#include <machine/i82489var.h>
#include <machine/mtrr.h>
#include <machine/gdt.h>
#include <machine/fpu.h>
#include <ddb/db_output.h>
#include <machine/db_machdep.h>
void x86_64_ipi_halt(struct cpu_info *);
void x86_64_ipi_synch_fpu(struct cpu_info *);
void x86_64_ipi_flush_fpu(struct cpu_info *);
void x86_64_ipi_nop(struct cpu_info *);
#ifdef MTRR
void x86_64_reload_mtrr(struct cpu_info *);
#else
#define x86_64_reload_mtrr NULL
#endif
void (*ipifunc[X86_NIPI])(struct cpu_info *) =
{
x86_64_ipi_halt,
x86_64_ipi_nop,
x86_64_ipi_flush_fpu,
x86_64_ipi_synch_fpu,
NULL,
x86_64_reload_mtrr,
gdt_reload_cpu,
#ifdef DDB
x86_ipi_db,
#else
NULL,
#endif
x86_setperf_ipi,
};
void
x86_64_ipi_nop(struct cpu_info *ci)
{
}
void
x86_64_ipi_halt(struct cpu_info *ci)
{
disable_intr();
for(;;) {
__asm __volatile("hlt");
}
}
void
x86_64_ipi_flush_fpu(struct cpu_info *ci)
{
fpusave_cpu(ci, 0);
}
void
x86_64_ipi_synch_fpu(struct cpu_info *ci)
{
fpusave_cpu(ci, 1);
}
#ifdef MTRR
/*
* mtrr_reload_cpu() is a macro in mtrr.h which picks the appropriate
* function to use..
*/
void
x86_64_reload_mtrr(struct cpu_info *ci)
{
if (mtrr_funcs != NULL)
mtrr_reload_cpu(ci);
}
#endif