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  1. /*
  2.  * Copyright (C) 2005 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 sparc64mm  
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #include <arch/mm/frame.h>
  36. #include <mm/frame.h>
  37. #include <arch/boot/boot.h>
  38. #include <arch/types.h>
  39. #include <config.h>
  40. #include <align.h>
  41. #include <macros.h>
  42.  
  43. uintptr_t last_frame = NULL;
  44.  
  45. /** Create memory zones according to information stored in bootinfo.
  46.  *
  47.  * Walk the bootinfo memory map and create frame zones according to it.
  48.  */
  49. void frame_arch_init(void)
  50. {
  51.     int i;
  52.     pfn_t confdata;
  53.  
  54.     if (config.cpu_active == 1) {
  55.         for (i = 0; i < bootinfo.memmap.count; i++) {
  56.             uintptr_t start = bootinfo.memmap.zones[i].start;
  57.             size_t size = bootinfo.memmap.zones[i].size;
  58.  
  59.             /*
  60.              * The memmap is created by HelenOS boot loader.
  61.              * It already contains no holes.
  62.              */
  63.  
  64.             confdata = ADDR2PFN(start);
  65.             if (confdata == ADDR2PFN(KA2PA(PFN2ADDR(0))))
  66.                 confdata = ADDR2PFN(KA2PA(PFN2ADDR(2)));
  67.             zone_create(ADDR2PFN(start), SIZE2FRAMES(ALIGN_DOWN(size, FRAME_SIZE)), confdata, 0);
  68.             last_frame = max(last_frame, start + ALIGN_UP(size, FRAME_SIZE));
  69.         }
  70.  
  71.         /*
  72.          * On sparc64, physical memory can start on a non-zero address.
  73.          * The generic frame_init() only marks PFN 0 as not free, so we
  74.          * must mark the physically first frame not free explicitly here,
  75.          * no matter what is its address.
  76.          */
  77.         frame_mark_unavailable(ADDR2PFN(KA2PA(PFN2ADDR(0))), 1);
  78.     }
  79.    
  80. }
  81.  
  82. /** @}
  83.  */
  84.