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396 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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#include <print.h>
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#include <test.h>
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#include <mm/page.h>
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#include <mm/frame.h>
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#include <mm/as.h>
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#include <arch/mm/page.h>
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#include <arch/types.h>
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#include <debug.h>
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#define PAGE0  0x10000000
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#define PAGE1  (PAGE0 + PAGE_SIZE)
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#define VALUE0  0x01234567
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#define VALUE1  0x89abcdef
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char *test_mapping1(void)
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{
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    uintptr_t frame0, frame1;
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    uint32_t v0, v1;
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    frame0 = (uintptr_t) frame_alloc(ONE_FRAME, FRAME_KA);
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    frame1 = (uintptr_t) frame_alloc(ONE_FRAME, FRAME_KA);
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    TPRINTF("Writing %#x to physical address %p.\n", VALUE0, KA2PA(frame0));
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    *((uint32_t *) frame0) = VALUE0;
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    TPRINTF("Writing %#x to physical address %p.\n", VALUE1, KA2PA(frame1));
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    *((uint32_t *) frame1) = VALUE1;
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    TPRINTF("Mapping virtual address %p to physical address %p.\n", PAGE0, KA2PA(frame0));
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    page_mapping_insert(AS_KERNEL, PAGE0, KA2PA(frame0), PAGE_PRESENT | PAGE_WRITE);
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    TPRINTF("Mapping virtual address %p to physical address %p.\n", PAGE1, KA2PA(frame1));
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    page_mapping_insert(AS_KERNEL, PAGE1, KA2PA(frame1), PAGE_PRESENT | PAGE_WRITE);
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    v0 = *((uint32_t *) PAGE0);
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    v1 = *((uint32_t *) PAGE1);
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    TPRINTF("Value at virtual address %p is %#x.\n", PAGE0, v0);
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    TPRINTF("Value at virtual address %p is %#x.\n", PAGE1, v1);
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    if (v0 != VALUE0)
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        return "Value at v0 not equal to VALUE0";
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    if (v1 != VALUE1)
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        return "Value at v1 not equal to VALUE1";
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    TPRINTF("Writing %#x to virtual address %p.\n", 0, PAGE0);
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    *((uint32_t *) PAGE0) = 0;
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    TPRINTF("Writing %#x to virtual address %p.\n", 0, PAGE1);
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    *((uint32_t *) PAGE1) = 0;
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    v0 = *((uint32_t *) PAGE0);
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    v1 = *((uint32_t *) PAGE1);
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    TPRINTF("Value at virtual address %p is %#x.\n", PAGE0, *((uint32_t *) PAGE0));
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    TPRINTF("Value at virtual address %p is %#x.\n", PAGE1, *((uint32_t *) PAGE1));
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    if (v0 != 0)
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        return "Value at v0 not equal to 0";
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    if (v1 != 0)
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        return "Value at v1 not equal to 0";
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    return NULL;
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}