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  1. /*
  2.  * Copyright (c) 2003-2004 Jakub Jermar
  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 mips32mm
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #include <arch/mm/page.h>
  36. #include <genarch/mm/page_pt.h>
  37. #include <mm/page.h>
  38. #include <mm/frame.h>
  39. #include <ddi/ddi.h>
  40.  
  41. /** Physical memory area for devices. */
  42. static parea_t dev_area;
  43.  
  44. void page_arch_init(void)
  45. {
  46.     page_mapping_operations = &pt_mapping_operations;
  47. }
  48.  
  49. /** Map device into kernel space
  50.  * - on mips, all devices are already mapped into kernel space,
  51.  *   translate the physical address to uncached area
  52.  */
  53. uintptr_t hw_map(uintptr_t physaddr, size_t size)
  54. {
  55.     return physaddr + 0xa0000000;
  56. }
  57.  
  58. void hw_area(void)
  59. {
  60.     dev_area.pbase = end_frame;
  61.     dev_area.frames = SIZE2FRAMES(0xffffffff - end_frame);
  62.     ddi_parea_register(&dev_area);
  63. }
  64.  
  65. /** @}
  66.  */
  67.