WebSVN – HelenOS – Diff – /trunk/kernel/arch/sparc64/src/mm/frame.c


/*
 * Copyright (c) 2005 Jakub Jermar
 * 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 sparc64mm  
 * @{
 */
/** @file
 */
 
#include <arch/mm/frame.h>
#include <mm/frame.h>
#include <arch/boot/boot.h>
#include <arch/types.h>
#include <config.h>
#include <align.h>
#include <macros.h>
 
uintptr_t last_frame = NULL;
 
/** Create memory zones according to information stored in bootinfo.
 *
 * Walk the bootinfo memory map and create frame zones according to it.
 */
void frame_arch_init(void)
{
    int i;
    pfn_t confdata;
 
    if (config.cpu_active == 1) {
        for (i = 0; i < bootinfo.memmap.count; i++) {
            uintptr_t start = bootinfo.memmap.zones[i].start;
            size_t size = bootinfo.memmap.zones[i].size;
 
            /*
             * The memmap is created by HelenOS boot loader.
             * It already contains no holes.
             */
 
            confdata = ADDR2PFN(start);
            if (confdata == ADDR2PFN(KA2PA(PFN2ADDR(0))))
                confdata = ADDR2PFN(KA2PA(PFN2ADDR(2)));
            zone_create(ADDR2PFN(start),
                SIZE2FRAMES(ALIGN_DOWN(size, FRAME_SIZE)),
                confdata, 0);
            last_frame = max(last_frame, start + ALIGN_UP(size,
                FRAME_SIZE));
        }
 
        /*
         * On sparc64, physical memory can start on a non-zero address.
         * The generic frame_init() only marks PFN 0 as not free, so we
         * must mark the physically first frame not free explicitly
         * here, no matter what is its address.
         */
        frame_mark_unavailable(ADDR2PFN(KA2PA(PFN2ADDR(0))), 1);
    }
   
}
 
/** @}
 */
 

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/sparc64/src/mm/frame.c – Rev 2048 → 2071

Rev 2048		Rev 2071
1	/*	1	/*
2	* Copyright (C) 2005 Jakub Jermar	2	* Copyright (c) 2005 Jakub Jermar
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 sparc64mm	29	/** @addtogroup sparc64mm
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#include <arch/mm/frame.h>	35	#include <arch/mm/frame.h>
36	#include <mm/frame.h>	36	#include <mm/frame.h>
37	#include <arch/boot/boot.h>	37	#include <arch/boot/boot.h>
38	#include <arch/types.h>	38	#include <arch/types.h>
39	#include <config.h>	39	#include <config.h>
40	#include <align.h>	40	#include <align.h>
41	#include <macros.h>	41	#include <macros.h>
42		42
43	uintptr_t last_frame = NULL;	43	uintptr_t last_frame = NULL;
44		44
45	/** Create memory zones according to information stored in bootinfo.	45	/** Create memory zones according to information stored in bootinfo.
46	*	46	*
47	* Walk the bootinfo memory map and create frame zones according to it.	47	* Walk the bootinfo memory map and create frame zones according to it.
48	*/	48	*/
49	void frame_arch_init(void)	49	void frame_arch_init(void)
50	{	50	{
51	int i;	51	int i;
52	pfn_t confdata;	52	pfn_t confdata;
53		53
54	if (config.cpu_active == 1) {	54	if (config.cpu_active == 1) {
55	for (i = 0; i < bootinfo.memmap.count; i++) {	55	for (i = 0; i < bootinfo.memmap.count; i++) {
56	uintptr_t start = bootinfo.memmap.zones[i].start;	56	uintptr_t start = bootinfo.memmap.zones[i].start;
57	size_t size = bootinfo.memmap.zones[i].size;	57	size_t size = bootinfo.memmap.zones[i].size;
58		58
59	/*	59	/*
60	* The memmap is created by HelenOS boot loader.	60	* The memmap is created by HelenOS boot loader.
61	* It already contains no holes.	61	* It already contains no holes.
62	*/	62	*/
63		63
64	confdata = ADDR2PFN(start);	64	confdata = ADDR2PFN(start);
65	if (confdata == ADDR2PFN(KA2PA(PFN2ADDR(0))))	65	if (confdata == ADDR2PFN(KA2PA(PFN2ADDR(0))))
66	confdata = ADDR2PFN(KA2PA(PFN2ADDR(2)));	66	confdata = ADDR2PFN(KA2PA(PFN2ADDR(2)));
67	zone_create(ADDR2PFN(start),	67	zone_create(ADDR2PFN(start),
68	SIZE2FRAMES(ALIGN_DOWN(size, FRAME_SIZE)),	68	SIZE2FRAMES(ALIGN_DOWN(size, FRAME_SIZE)),
69	confdata, 0);	69	confdata, 0);
70	last_frame = max(last_frame, start + ALIGN_UP(size,	70	last_frame = max(last_frame, start + ALIGN_UP(size,
71	FRAME_SIZE));	71	FRAME_SIZE));
72	}	72	}
73		73
74	/*	74	/*
75	* On sparc64, physical memory can start on a non-zero address.	75	* On sparc64, physical memory can start on a non-zero address.
76	* The generic frame_init() only marks PFN 0 as not free, so we	76	* The generic frame_init() only marks PFN 0 as not free, so we
77	* must mark the physically first frame not free explicitly	77	* must mark the physically first frame not free explicitly
78	* here, no matter what is its address.	78	* here, no matter what is its address.
79	*/	79	*/
80	frame_mark_unavailable(ADDR2PFN(KA2PA(PFN2ADDR(0))), 1);	80	frame_mark_unavailable(ADDR2PFN(KA2PA(PFN2ADDR(0))), 1);
81	}	81	}
82		82
83	}	83	}
84		84
85	/** @}	85	/** @}
86	*/	86	*/
87		87