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/*
* Copyright (c) 1997, by Steve Passe
* 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. The name of the developer may NOT be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $Id: apic_ipl.s,v 1.1 1997/07/18 22:54:17 smp Exp smp $
*/
.data
ALIGN_DATA
/* this allows us to change the 8254 APIC pin# assignment */
.globl _Xintr8254
_Xintr8254:
.long _Xintr7
/* used by this file, microtime.s and clock.c */
.globl _mask8254
_mask8254:
.long 0
#ifdef DO_RTC_VEC
/** XXX FIXME: remove me after several weeks of no problems */
/* this allows us to change the RTC clock APIC pin# assignment */
.globl _XintrRTC
_XintrRTC:
.long _Xintr7
/* used by this file and clock.c */
.globl _maskRTC
_maskRTC:
.long 0
#endif /* DO_RTC_VEC */
/* */
.globl _vec
_vec:
.long vec0, vec1, vec2, vec3, vec4, vec5, vec6, vec7
.long vec8, vec9, vec10, vec11, vec12, vec13, vec14, vec15
.long vec16, vec17, vec18, vec19, vec20, vec21, vec22, vec23
/*
*
*/
.text
SUPERALIGN_TEXT
/*
* Fake clock interrupt(s) so that they appear to come from our caller instead
* of from here, so that system profiling works.
* XXX do this more generally (for all vectors; look up the C entry point).
* XXX frame bogusness stops us from just jumping to the C entry point.
*/
/*
* generic vector function for 8254 clock
*/
ALIGN_TEXT
.globl _vec8254
_vec8254:
popl %eax /* return address */
pushfl
pushl $KCSEL
pushl %eax
cli
movl _mask8254,%eax /* lazy masking */
notl %eax
andl %eax,iactive
MEXITCOUNT
movl _Xintr8254, %eax
jmp %eax /* XXX might need _Xfastintr# */
/*
* generic vector function for RTC clock
*/
ALIGN_TEXT
#ifdef DO_RTC_VEC
.globl _vecRTC
_vecRTC:
popl %eax
pushfl
pushl $KCSEL
pushl %eax
cli
movl _maskRTC,%eax /* lazy masking */
notl %eax
andl %eax, iactive
MEXITCOUNT
movl _XintrRTC, %eax
jmp %eax /* XXX might need _Xfastintr# */
#else /* DO_RTC_VEC */
vec8:
popl %eax
pushfl
pushl $KCSEL
pushl %eax
cli
andl $~IRQ_BIT(8), iactive ; /* lazy masking */
MEXITCOUNT
jmp _Xintr8 /* XXX might need _Xfastintr8 */
#endif /* DO_RTC_VEC */
/*
* The 'generic' vector stubs.
*/
#define BUILD_VEC(irq_num) \
ALIGN_TEXT ; \
__CONCAT(vec,irq_num): ; \
popl %eax ; \
pushfl ; \
pushl $KCSEL ; \
pushl %eax ; \
cli ; \
andl $~IRQ_BIT(irq_num), iactive ; /* lazy masking */ \
MEXITCOUNT ; \
jmp __CONCAT(_Xintr,irq_num)
BUILD_VEC(0) /* NOT specific in IO APIC hardware */
BUILD_VEC(1)
BUILD_VEC(2)
BUILD_VEC(3)
BUILD_VEC(4)
BUILD_VEC(5)
BUILD_VEC(6)
BUILD_VEC(7)
#ifdef DO_RTC_VEC
BUILD_VEC(8)
#endif /* DO__RTC_VEC */
BUILD_VEC(9)
BUILD_VEC(10)
BUILD_VEC(11)
BUILD_VEC(12)
BUILD_VEC(13)
BUILD_VEC(14)
BUILD_VEC(15)
BUILD_VEC(16) /* 8 additional INTs in IO APIC */
BUILD_VEC(17)
BUILD_VEC(18)
BUILD_VEC(19)
BUILD_VEC(20)
BUILD_VEC(21)
BUILD_VEC(22)
BUILD_VEC(23)
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