kernel/arch/ia32xen/include/mm/frame.h

   1 /*
   2  * Copyright (C) 2006 Martin Decky
   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 ia32xen_mm
  30  * @{
  31  */
  32 /** @file
  33  */
  34
  35 #ifndef KERN_ia32xen_FRAME_H_
  36 #define KERN_ia32xen_FRAME_H_
  37
  38 #define FRAME_WIDTH     12      /* 4K */
  39 #define FRAME_SIZE      (1 << FRAME_WIDTH)
  40
  41
  42 #ifdef KERNEL
  43 #ifndef __ASM__
  44
  45 #include <arch/types.h>
  46 #include <arch/boot/boot.h>
  47
  48 #define PA2MA(x)        ((start_info.pm_map[((uintptr_t) (x)) >> 12] << 12) + (((uintptr_t) (x)) & 0xfff))
  49 #define MA2PA(x)        ((mp_map[((uintptr_t) (x)) >> 12] << 12) + (((uintptr_t) (x)) & 0xfff))
  50
  51 extern void frame_arch_init(void);
  52
  53 #endif /* __ASM__ */
  54 #endif /* KERNEL */
  55
  56 #endif
  57
  58 /** @}
  59  */