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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 ia64mm
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #include <arch/mm/frame.h>
  36. #include <mm/frame.h>
  37. #include <config.h>
  38. #include <panic.h>
  39. #include <arch/bootinfo.h>
  40. #include <align.h>
  41. #include <macros.h>
  42.  
  43. #define KERNEL_RESERVED_AREA_BASE   (0x4400000)
  44. #define KERNEL_RESERVED_AREA_SIZE   (16 * 1024 * 1024)
  45.  
  46. #define ROM_BASE    0xa0000               /* for simulators */
  47. #define ROM_SIZE    (384 * 1024)          /* for simulators */
  48.  
  49. #define MIN_ZONE_SIZE   (64 * 1024)
  50.  
  51. #define MINCONF 1
  52.  
  53. uintptr_t last_frame = 0;
  54.  
  55. void frame_arch_init(void)
  56. {
  57.     if (config.cpu_active == 1) {
  58.         unsigned int i;
  59.         for (i = 0; i < bootinfo->memmap_items; i++) {
  60.             if (bootinfo->memmap[i].type == EFI_MEMMAP_FREE_MEM) {
  61.                 uint64_t base = bootinfo->memmap[i].base;
  62.                 uint64_t size = bootinfo->memmap[i].size;
  63.                 uint64_t abase = ALIGN_UP(base, FRAME_SIZE);
  64.  
  65.                 if (size > FRAME_SIZE)
  66.                     size -= abase - base;
  67.  
  68.                 if (size > MIN_ZONE_SIZE) {
  69.                     zone_create(abase >> FRAME_WIDTH,
  70.                         size >> FRAME_WIDTH,
  71.                         max(MINCONF, abase >> FRAME_WIDTH),
  72.                         0);
  73.                 }
  74.                 if (abase + size > last_frame)
  75.                     last_frame = abase + size;
  76.             }
  77.         }
  78.        
  79.         /*
  80.          * Blacklist ROM regions.
  81.          */
  82.         frame_mark_unavailable(ADDR2PFN(ROM_BASE),
  83.             SIZE2FRAMES(ROM_SIZE));
  84.  
  85.         frame_mark_unavailable(ADDR2PFN(KERNEL_RESERVED_AREA_BASE),
  86.             SIZE2FRAMES(KERNEL_RESERVED_AREA_SIZE));
  87.     }  
  88. }
  89.  
  90. /** @}
  91.  */
  92.