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* Copyright (c) 2005 Jakub Jermar
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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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* - 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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* 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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#include <arch/mm/page.h>
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#include <arch/types.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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uintptr_t frame0, frame1;
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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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return "Value at v0 not equal to VALUE0";
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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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return "Value at v0 not equal to 0";
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return "Value at v1 not equal to 0";