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  1. /*
  2.  * Copyright (c) 2007 Pavel Jancik, Michal Kebrt
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup arm32mm
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #ifndef KERN_arm32_FRAME_H_
  36. #define KERN_arm32_FRAME_H_
  37.  
  38. #define FRAME_WIDTH     12 /* 4KB frames */
  39. #define FRAME_SIZE      (1 << FRAME_WIDTH)
  40.  
  41. #ifdef KERNEL
  42. #ifndef __ASM__
  43.  
  44. #include <arch/types.h>
  45.  
  46. #define BOOT_PAGE_TABLE_SIZE    0x4000
  47. #define BOOT_PAGE_TABLE_ADDRESS 0x4000
  48.  
  49. #define BOOT_PAGE_TABLE_START_FRAME     (BOOT_PAGE_TABLE_ADDRESS >> FRAME_WIDTH)
  50. #define BOOT_PAGE_TABLE_SIZE_IN_FRAMES  (BOOT_PAGE_TABLE_SIZE >> FRAME_WIDTH)
  51.  
  52. extern uintptr_t last_frame;
  53.  
  54. extern void frame_arch_init(void);
  55. extern void boot_page_table_free(void);
  56.  
  57. #endif /* __ASM__ */
  58. #endif /* KERNEL */
  59.  
  60. #endif
  61.  
  62. /** @}
  63.  */
  64.