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426 jermar 1 
/*
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 * Copyright (c) 2005 Jakub Jermar
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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 sparc64mm
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 * @{
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 */
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/** @file
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 */
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#include <arch/mm/frame.h>
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#include <mm/frame.h>
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#include <arch/boot/boot.h>
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#include <arch/types.h>
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#include <config.h>
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#include <align.h>
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#include <macros.h>
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uintptr_t last_frame = NULL;
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/** Create memory zones according to information stored in bootinfo.
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 *
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 * Walk the bootinfo memory map and create frame zones according to it.
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 */
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void frame_arch_init(void)
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{
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    unsigned int i;
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    pfn_t confdata;
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    if (config.cpu_active == 1) {
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        for (i = 0; i < bootinfo.memmap.count; i++) {
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            uintptr_t start = bootinfo.memmap.zones[i].start;
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            size_t size = bootinfo.memmap.zones[i].size;
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            /*
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             * The memmap is created by HelenOS boot loader.
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             * It already contains no holes.
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             */
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            confdata = ADDR2PFN(start);
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            if (confdata == ADDR2PFN(KA2PA(PFN2ADDR(0))))
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                confdata = ADDR2PFN(KA2PA(PFN2ADDR(2)));
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            zone_create(ADDR2PFN(start),
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                SIZE2FRAMES(ALIGN_DOWN(size, FRAME_SIZE)),
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                confdata, 0);
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            last_frame = max(last_frame, start + ALIGN_UP(size,
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                FRAME_SIZE));
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        }
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        /*
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         * On sparc64, physical memory can start on a non-zero address.
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         * The generic frame_init() only marks PFN 0 as not free, so we
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         * must mark the physically first frame not free explicitly
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         * here, no matter what is its address.
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         */
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        frame_mark_unavailable(ADDR2PFN(KA2PA(PFN2ADDR(0))), 1);
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    }
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    end_of_identity = PA2KA(last_frame);
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}
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/** @}
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 */