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freebsd/sys/boot/ia64/ski/pal_stub.S
Marcel Moolenaar 2e55d247a6 Implement PAL_HALT_LIGHT now that the kernel halts the processor
when idle. All we have to do is return.
2003-11-09 07:42:16 +00:00

75 lines
2.4 KiB
ArmAsm

/*
* Copyright (c) 2003 Marcel Moolenaar
* Copyright (c) 2001 Doug Rabson
* 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.
*
* 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.
*
* $FreeBSD$
*/
#include <machine/asm.h>
.text
ENTRY(PalProc, 0)
cmp.eq p6,p0=6,r28 // PAL_PTCE_INFO
(p6) br.cond.dptk pal_ptce_info
;;
cmp.eq p6,p0=8,r28 // PAL_VM_SUMMARY
(p6) br.cond.dptk pal_vm_summary
;;
cmp.eq p6,p0=14,r28 // PAL_FREQ_RATIOS
(p6) br.cond.dptk pal_freq_ratios
;;
cmp.eq p6,p0=29,r28 // PAL_HALT_LIGHT
(p6) br.cond.dptk pal_halt_light
;;
mov r15=66 // EXIT
break.i 0x80000 // SSC
;;
pal_ptce_info:
mov r8=0
mov r9=0 // base
movl r10=0x0000000100000001 // loop counts (outer|inner)
mov r11=0x0000000000000000 // loop strides (outer|inner)
br.sptk b0
pal_vm_summary:
mov r8=0
movl r9=(8<<40)|(8<<32) // VM info 1
mov r10=(18<<8)|(41<<0) // VM info 2
mov r11=0
br.sptk b0
pal_freq_ratios:
mov r8=0
movl r9=0x0000000B00000002 // processor ratio 11/2
movl r10=0x0000000100000001 // bus ratio 1/1
movl r11=0x0000000B00000002 // ITC ratio 11/2
br.sptk b0
pal_halt_light:
mov r8=0
mov r9=0
mov r10=0
mov r11=0
br.sptk b0
END(PalProc)