src/cpus/memory_sparc.c

/*
 *  Copyright (C) 2006-2007  Anders Gavare.  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.
 *  3. The name of the author 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: memory_sparc.c,v 1.3 2007/03/16 15:17:55 debug Exp $
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "cpu.h"
#include "machine.h"
#include "memory.h"
#include "misc.h"


/*
 *  sparc_translate_v2p():
 *
 *  TODO
 */
int sparc_translate_v2p(struct cpu *cpu, uint64_t vaddr,
        uint64_t *return_paddr, int flags)
{
        *return_paddr = vaddr;

        /*  Kernel direct-mapped space for SPARC prior to v9:  */
        if ((vaddr & 0xf0000000) == 0xf0000000)
                *return_paddr = vaddr & 0x07ffffff;

/*  FreeBSD/sun4v test hack:  */
if ((vaddr & 0xf0000000) == 0xc0000000)
        *return_paddr = vaddr & 0x0fffffff;

        return 2;
}

1	/*
2	* Copyright (C) 2006-2007 Anders Gavare. All rights reserved.
3	*
4	* Redistribution and use in source and binary forms, with or without
5	* modification, are permitted provided that the following conditions are met:
6	*
7	* 1. Redistributions of source code must retain the above copyright
8	* notice, this list of conditions and the following disclaimer.
9	* 2. Redistributions in binary form must reproduce the above copyright
10	* notice, this list of conditions and the following disclaimer in the
11	* documentation and/or other materials provided with the distribution.
12	* 3. The name of the author may not be used to endorse or promote products
13	* derived from this software without specific prior written permission.
14	*
15	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25	* SUCH DAMAGE.
26	*
27	*
28	* $Id: memory_sparc.c,v 1.3 2007/03/16 15:17:55 debug Exp $
29	*/
30
31	#include <stdio.h>
32	#include <stdlib.h>
33	#include <string.h>
34
35	#include "cpu.h"
36	#include "machine.h"
37	#include "memory.h"
38	#include "misc.h"
39
40
41	/*
42	* sparc_translate_v2p():
43	*
44	* TODO
45	*/
46	int sparc_translate_v2p(struct cpu *cpu, uint64_t vaddr,
47	uint64_t *return_paddr, int flags)
48	{
49	*return_paddr = vaddr;
50
51	/* Kernel direct-mapped space for SPARC prior to v9: */
52	if ((vaddr & 0xf0000000) == 0xf0000000)
53	*return_paddr = vaddr & 0x07ffffff;
54
55	/* FreeBSD/sun4v test hack: */
56	if ((vaddr & 0xf0000000) == 0xc0000000)
57	*return_paddr = vaddr & 0x0fffffff;
58
59	return 2;
60	}
61