8d9761debf
disk drivers along with a load of fixes to context switching, fork handling and a load of other stuff I can't remember now. This takes us as far as start_init() before it dies. I guess now I will have to finish off the VM system and syscall handling :-).
76 lines
2.2 KiB
ArmAsm
76 lines
2.2 KiB
ArmAsm
/*-
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* Copyright (c) 2000 Doug Rabson
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <machine/asm.h>
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BSS(ia64_pal_entry, 8)
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/*
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* struct ia64_pal_result ia64_call_pal(u_int64_t proc,
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* u_int64_t arg1, u_int64_t arg2, u_int64_t arg3)
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*/
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ENTRY(ia64_call_pal, 4)
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.regstk 4,5,0,0
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palret = loc0
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entry = loc1
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rpsave = loc2
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pfssave = loc3
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psrsave = loc4
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alloc pfssave=ar.pfs,4,5,0,0
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;;
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mov rpsave=rp
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movl entry=ia64_pal_entry
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1: mov palret=ip // for return address
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;;
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mov psrsave=psr
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mov r28=in0 // procedure number
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;;
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ld8 entry=[entry] // read entry point
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mov r29=in1 // copy arguments
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mov r30=in2
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mov r31=in3
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;;
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mov b1=entry
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add palret=2f-1b,palret // calculate return address
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;;
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mov b0=palret
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rsm psr.i // disable interrupts
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;;
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br.cond.sptk b1 // call into firmware
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2: mov psr.l=psrsave
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mov rp=rpsave
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mov ar.pfs=pfssave
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;;
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srlz.d
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br.ret.sptk rp
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END(ia64_call_pal)
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