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path: root/sys/amd64/isa/atpic_vector.S
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/*-
 * Copyright (c) 1989, 1990 William F. Jolitz.
 * Copyright (c) 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * 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.
 * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
 *
 *	from: vector.s, 386BSD 0.1 unknown origin
 * $FreeBSD$
 */

/*
 * Interrupt entry points for external interrupts triggered by the 8259A
 * master and slave interrupt controllers.
 */

#include <machine/asmacros.h>

#include "assym.s"

/*
 * Macros for interrupt interrupt entry, call to handler, and exit.
 */
#define	INTR(irq_num, vec_name) \
	.text ;								\
	SUPERALIGN_TEXT ;						\
IDTVEC(vec_name) ;							\
	subq	$TF_RIP,%rsp ;	/* skip dummy tf_err and tf_trapno */	\
	testb	$SEL_RPL_MASK,TF_CS(%rsp) ; /* come from kernel? */	\
	jz	1f ;		/* Yes, dont swapgs again */		\
	swapgs ;							\
1:	movq	%rdi,TF_RDI(%rsp) ;					\
	movq	%rsi,TF_RSI(%rsp) ;					\
	movq	%rdx,TF_RDX(%rsp) ;					\
	movq	%rcx,TF_RCX(%rsp) ;					\
	movq	%r8,TF_R8(%rsp) ;					\
	movq	%r9,TF_R9(%rsp) ;					\
	movq	%rax,TF_RAX(%rsp) ;					\
	movq	%rbx,TF_RBX(%rsp) ;					\
	movq	%rbp,TF_RBP(%rsp) ;					\
	movq	%r10,TF_R10(%rsp) ;					\
	movq	%r11,TF_R11(%rsp) ;					\
	movq	%r12,TF_R12(%rsp) ;					\
	movq	%r13,TF_R13(%rsp) ;					\
	movq	%r14,TF_R14(%rsp) ;					\
	movq	%r15,TF_R15(%rsp) ;					\
	FAKE_MCOUNT(TF_RIP(%rsp)) ;					\
	movq	$irq_num, %rdi; 	/* pass the IRQ */		\
	call	atpic_handle_intr ;					\
	MEXITCOUNT ;							\
	jmp	doreti

MCOUNT_LABEL(bintr)
	INTR(0, atpic_intr0)
	INTR(1, atpic_intr1)
	INTR(2, atpic_intr2)
	INTR(3, atpic_intr3)
	INTR(4, atpic_intr4)
	INTR(5, atpic_intr5)
	INTR(6, atpic_intr6)
	INTR(7, atpic_intr7)
	INTR(8, atpic_intr8)
	INTR(9, atpic_intr9)
	INTR(10, atpic_intr10)
	INTR(11, atpic_intr11)
	INTR(12, atpic_intr12)
	INTR(13, atpic_intr13)
	INTR(14, atpic_intr14)
	INTR(15, atpic_intr15)
MCOUNT_LABEL(eintr)