0,0 → 1,92 |
/* |
* Copyright (C) 2006 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. |
*/ |
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/** @addtogroup genarchmm |
* @{ |
*/ |
/** @file |
*/ |
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/* |
* This is the generic page hash table interface. |
*/ |
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#ifdef CONFIG_PAGE_HT |
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#ifndef __PAGE_HT_H__ |
#define __PAGE_HT_H__ |
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#include <mm/page.h> |
#include <typedefs.h> |
#include <arch/types.h> |
#include <adt/list.h> |
#include <adt/hash_table.h> |
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#define PAGE_HT_KEYS 2 |
#define KEY_AS 0 |
#define KEY_PAGE 1 |
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#define PAGE_HT_ENTRIES_BITS 13 |
#define PAGE_HT_ENTRIES (1<<PAGE_HT_ENTRIES_BITS) |
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#define PTE_VALID(pte) ((pte) != NULL) |
#define PTE_PRESENT(pte) ((pte)->p != 0) |
#define PTE_GET_FRAME(pte) ((pte)->frame) |
#define PTE_READABLE(pte) 1 |
#define PTE_WRITABLE(pte) ((pte)->w != 0) |
#define PTE_EXECUTABLE(pte) ((pte)->x != 0) |
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#define SET_PTL0_ADDRESS(x) |
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struct pte { |
link_t link; /**< Page hash table link. */ |
as_t *as; /**< Address space. */ |
uintptr_t page; /**< Virtual memory page. */ |
uintptr_t frame; /**< Physical memory frame. */ |
unsigned g : 1; /**< Global page. */ |
unsigned x : 1; /**< Execute. */ |
unsigned w : 1; /**< Writable. */ |
unsigned k : 1; /**< Kernel privileges required. */ |
unsigned c : 1; /**< Cacheable. */ |
unsigned a : 1; /**< Accessed. */ |
unsigned d : 1; /**< Dirty. */ |
unsigned p : 1; /**< Present. */ |
}; |
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extern page_mapping_operations_t ht_mapping_operations; |
extern mutex_t page_ht_lock; |
extern hash_table_t page_ht; |
extern hash_table_operations_t ht_operations; |
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#endif |
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#endif |
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/** @} |
*/ |
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