| 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. |
| */ |
| |
| /** @addtogroup genarchmm |
| * @{ |
| */ |
| /** @file |
| */ |
| |
| /* |
| * This is the generic page hash table interface. |
| */ |
| |
| #ifdef CONFIG_PAGE_HT |
| |
| #ifndef __PAGE_HT_H__ |
| #define __PAGE_HT_H__ |
| |
| #include <mm/page.h> |
| #include <typedefs.h> |
| #include <arch/types.h> |
| #include <adt/list.h> |
| #include <adt/hash_table.h> |
| |
| #define PAGE_HT_KEYS 2 |
| #define KEY_AS 0 |
| #define KEY_PAGE 1 |
| |
| #define PAGE_HT_ENTRIES_BITS 13 |
| #define PAGE_HT_ENTRIES (1<<PAGE_HT_ENTRIES_BITS) |
| |
| #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) |
| |
| #define SET_PTL0_ADDRESS(x) |
| |
| 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. */ |
| }; |
| |
| 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; |
| |
| #endif |
| |
| #endif |
| |
| /** @} |
| */ |
| |