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162 decky 1 
/*
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 * Copyright (c) 2005 Martin Decky
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/** @addtogroup ppc32mm
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 * @{
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 */
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/** @file
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 */
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#include <arch/boot/boot.h>
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#include <arch/mm/frame.h>
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#include <mm/frame.h>
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#include <align.h>
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#include <macros.h>
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#include <print.h>
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uintptr_t last_frame = 0;
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void physmem_print(void)
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{
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    unsigned int i;
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    printf("Base       Size\n");
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    printf("---------- ----------\n");
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    for (i = 0; i < bootinfo.memmap.count; i++) {
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        printf("%#10x %#10x\n", bootinfo.memmap.zones[i].start,
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            bootinfo.memmap.zones[i].size);
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    }
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}
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void frame_arch_init(void)
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{
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    pfn_t minconf = 2;
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    size_t i;
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    pfn_t start, conf;
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    size_t size;
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    for (i = 0; i < bootinfo.memmap.count; i++) {
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        start = ADDR2PFN(ALIGN_UP(bootinfo.memmap.zones[i].start, FRAME_SIZE));
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        size = SIZE2FRAMES(ALIGN_DOWN(bootinfo.memmap.zones[i].size, FRAME_SIZE));
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        if ((minconf < start) || (minconf >= start + size))
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            conf = start;
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        else
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            conf = minconf;
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        zone_create(start, size, conf, 0);
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        if (last_frame < ALIGN_UP(bootinfo.memmap.zones[i].start + bootinfo.memmap.zones[i].size, FRAME_SIZE))
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            last_frame = ALIGN_UP(bootinfo.memmap.zones[i].start + bootinfo.memmap.zones[i].size, FRAME_SIZE);
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    }
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    /* First is exception vector, second is 'implementation specific',
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       third and fourth is reserved, other contain real mode code */
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    frame_mark_unavailable(0, 8);
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    /* Mark the Page Hash Table frames as unavailable */
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    uint32_t sdr1;
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    asm volatile (
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        "mfsdr1 %0\n"
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        : "=r" (sdr1)
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    );
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    frame_mark_unavailable(ADDR2PFN(sdr1 & 0xffff000), 16); // FIXME
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}
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/** @}
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 */