WebSVN – HelenOS – Diff – /trunk/kernel/arch/ppc32/src/mm/frame.c


/*
 * Copyright (c) 2005 Martin Decky
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - 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.
 * - 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 ``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 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.
 */
 
/** @addtogroup ppc32mm
 * @{
 */
/** @file
 */
 
#include <arch/boot/boot.h>
#include <arch/mm/frame.h>
#include <mm/frame.h>
#include <align.h>
#include <macros.h>
#include <print.h>
 
uintptr_t last_frame = 0;
 
void physmem_print(void)
{
    unsigned int i;
   
    printf("Base       Size\n");
    printf("---------- ----------\n");
       
    for (i = 0; i < bootinfo.memmap.count; i++) {
        printf("%#10x %#10x\n", bootinfo.memmap.zones[i].start,
            bootinfo.memmap.zones[i].size);
    }
}
 
void frame_arch_init(void)
{
    pfn_t minconf = 2;
    size_t i;
    pfn_t start, conf;
    size_t size;
   
    for (i = 0; i < bootinfo.memmap.count; i++) {
        start = ADDR2PFN(ALIGN_UP(bootinfo.memmap.zones[i].start, FRAME_SIZE));
        size = SIZE2FRAMES(ALIGN_DOWN(bootinfo.memmap.zones[i].size, FRAME_SIZE));
       
        if ((minconf < start) || (minconf >= start + size))
            conf = start;
        else
            conf = minconf;
       
        zone_create(start, size, conf, 0);
        if (last_frame < ALIGN_UP(bootinfo.memmap.zones[i].start + bootinfo.memmap.zones[i].size, FRAME_SIZE))
            last_frame = ALIGN_UP(bootinfo.memmap.zones[i].start + bootinfo.memmap.zones[i].size, FRAME_SIZE);
    }
   
    /* First is exception vector, second is 'implementation specific',
       third and fourth is reserved, other contain real mode code */
    frame_mark_unavailable(0, 8);
   
    /* Mark the Page Hash Table frames as unavailable */
    uint32_t sdr1;
    asm volatile (
        "mfsdr1 %0\n"
        : "=r" (sdr1)
    );
    frame_mark_unavailable(ADDR2PFN(sdr1 & 0xffff000), 16); // FIXME
}
 
/** @}
 */
 

Rev 3973	Rev 4490
1	/*	1	/*
2	* Copyright (c) 2005 Martin Decky	2	* Copyright (c) 2005 Martin Decky
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	/** @addtogroup ppc32mm	29	/** @addtogroup ppc32mm
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#include <arch/boot/boot.h>	35	#include <arch/boot/boot.h>
36	#include <arch/mm/frame.h>	36	#include <arch/mm/frame.h>
37	#include <mm/frame.h>	37	#include <mm/frame.h>
38	#include <align.h>	38	#include <align.h>
39	#include <macros.h>	39	#include <macros.h>
40	#include <print.h>	40	#include <print.h>
41		41
42	uintptr_t last_frame = 0;	42	uintptr_t last_frame = 0;
43		43
44	void physmem_print(void)	44	void physmem_print(void)
45	{	45	{
46	unsigned int i;	46	unsigned int i;
47		47
48	printf("Base Size\n");	48	printf("Base Size\n");
49	printf("---------- ----------\n");	49	printf("---------- ----------\n");
50		50
51	for (i = 0; i < bootinfo.memmap.count; i++) {	51	for (i = 0; i < bootinfo.memmap.count; i++) {
52	printf("%#10x %#10x\n", bootinfo.memmap.zones[i].start,	52	printf("%#10x %#10x\n", bootinfo.memmap.zones[i].start,
53	bootinfo.memmap.zones[i].size);	53	bootinfo.memmap.zones[i].size);
54	}	54	}
55	}	55	}
56		56
57	void frame_arch_init(void)	57	void frame_arch_init(void)
58	{	58	{
59	pfn_t minconf = 2;	59	pfn_t minconf = 2;
60	count_t i;	60	size_t i;
61	pfn_t start, conf;	61	pfn_t start, conf;
62	size_t size;	62	size_t size;
63		63
64	for (i = 0; i < bootinfo.memmap.count; i++) {	64	for (i = 0; i < bootinfo.memmap.count; i++) {
65	start = ADDR2PFN(ALIGN_UP(bootinfo.memmap.zones[i].start, FRAME_SIZE));	65	start = ADDR2PFN(ALIGN_UP(bootinfo.memmap.zones[i].start, FRAME_SIZE));
66	size = SIZE2FRAMES(ALIGN_DOWN(bootinfo.memmap.zones[i].size, FRAME_SIZE));	66	size = SIZE2FRAMES(ALIGN_DOWN(bootinfo.memmap.zones[i].size, FRAME_SIZE));
67		67
68	if ((minconf < start) \|\| (minconf >= start + size))	68	if ((minconf < start) \|\| (minconf >= start + size))
69	conf = start;	69	conf = start;
70	else	70	else
71	conf = minconf;	71	conf = minconf;
72		72
73	zone_create(start, size, conf, 0);	73	zone_create(start, size, conf, 0);
74	if (last_frame < ALIGN_UP(bootinfo.memmap.zones[i].start + bootinfo.memmap.zones[i].size, FRAME_SIZE))	74	if (last_frame < ALIGN_UP(bootinfo.memmap.zones[i].start + bootinfo.memmap.zones[i].size, FRAME_SIZE))
75	last_frame = ALIGN_UP(bootinfo.memmap.zones[i].start + bootinfo.memmap.zones[i].size, FRAME_SIZE);	75	last_frame = ALIGN_UP(bootinfo.memmap.zones[i].start + bootinfo.memmap.zones[i].size, FRAME_SIZE);
76	}	76	}
77		77
78	/* First is exception vector, second is 'implementation specific',	78	/* First is exception vector, second is 'implementation specific',
79	third and fourth is reserved, other contain real mode code */	79	third and fourth is reserved, other contain real mode code */
80	frame_mark_unavailable(0, 8);	80	frame_mark_unavailable(0, 8);
81		81
82	/* Mark the Page Hash Table frames as unavailable */	82	/* Mark the Page Hash Table frames as unavailable */
83	uint32_t sdr1;	83	uint32_t sdr1;
84	asm volatile (	84	asm volatile (
85	"mfsdr1 %0\n"	85	"mfsdr1 %0\n"
86	: "=r" (sdr1)	86	: "=r" (sdr1)
87	);	87	);
88	frame_mark_unavailable(ADDR2PFN(sdr1 & 0xffff000), 16); // FIXME	88	frame_mark_unavailable(ADDR2PFN(sdr1 & 0xffff000), 16); // FIXME
89	}	89	}
90		90
91	/** @}	91	/** @}
92	*/	92	*/
93		93

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/ppc32/src/mm/frame.c @ 2222 – Rev 3973 → 4490