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      1 /*	$NetBSD: pal_stub.S,v 1.2 2006/04/22 07:58:53 cherry Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2003 Marcel Moolenaar
      5  * Copyright (c) 2001 Doug Rabson
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  *
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     28  * SUCH DAMAGE.
     29  *
     30  * $FreeBSD$: src/sys/boot/ia64/libski/pal_stub.S,v 1.3 2003/11/09 07:42:16 marcel Exp $
     31  */
     32 
     33 #include <machine/asm.h>
     34 
     35 	.text
     36 ENTRY(PalProc, 0)
     37 	cmp.eq		p6,p0=6,r28		// PAL_PTCE_INFO
     38 (p6)	br.cond.dptk	pal_ptce_info
     39 	;;
     40 	cmp.eq		p6,p0=8,r28		// PAL_VM_SUMMARY
     41 (p6)	br.cond.dptk	pal_vm_summary
     42 	;;
     43 	cmp.eq		p6,p0=14,r28		// PAL_FREQ_RATIOS
     44 (p6)	br.cond.dptk	pal_freq_ratios
     45 	;;
     46 	cmp.eq		p6,p0=29,r28		// PAL_HALT_LIGHT
     47 (p6)	br.cond.dptk	pal_halt_light
     48 	;;
     49 	mov		r15=66			// EXIT
     50 	break.i		0x80000			// SSC
     51 	;;
     52 pal_ptce_info:
     53 	mov		r8=0
     54 	mov		r9=0			// base
     55 	movl		r10=0x0000000100000001	// loop counts (outer|inner)
     56 	mov		r11=0x0000000000000000	// loop strides (outer|inner)
     57 	br.sptk		b0
     58 pal_vm_summary:
     59 	mov		r8=0
     60 	movl		r9=(8<<40)|(8<<32)	// VM info 1
     61 	mov		r10=(18<<8)|(41<<0)	// VM info 2
     62 	mov		r11=0
     63 	br.sptk		b0
     64 pal_freq_ratios:
     65 	mov		r8=0
     66 	movl		r9=0x0000000B00000002	// processor ratio 11/2
     67 	movl		r10=0x0000000100000001	// bus ratio 1/1
     68 	movl		r11=0x0000000B00000002	// ITC ratio 11/2
     69 	br.sptk		b0
     70 pal_halt_light:
     71 	mov		r8=0
     72 	mov		r9=0
     73 	mov		r10=0
     74 	mov		r11=0
     75 	br.sptk		b0
     76 END(PalProc)
     77