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/*  Generic MTRR (Memory Type Range Register) ioctls.

    Copyright (C) 1997  Richard Gooch

    This library is free software; you can redistribute it and/or

    modify it under the terms of the GNU Library General Public

    License as published by the Free Software Foundation; either

    version 2 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,

    but WITHOUT ANY WARRANTY; without even the implied warranty of

    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public

    License along with this library; if not, write to the Free

    Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

    Richard Gooch may be reached by email at  rgooch@atnf.csiro.au

    The postal address is:

      Richard Gooch, c/o ATNF, P. O. Box 76, Epping, N.S.W., 2121, Australia.

    modified by Mathias Fr"ohlich, Jan, 1998

    <frohlich@na.uni-tuebingen.de>

*/

#ifndef _LINUX_MTRR_H

#define _LINUX_MTRR_H

/*  These are the region types  */

#define MTRR_TYPE_UNCACHABLE 0

#define MTRR_TYPE_WRCOMB     1

/*#define MTRR_TYPE_         2*/

/*#define MTRR_TYPE_         3*/

#define MTRR_TYPE_WRTHROUGH  4

#define MTRR_TYPE_WRPROT     5

#define MTRR_TYPE_WRBACK     6

#define MTRR_NUM_TYPES       7

static char *attrib_to_str (int x) __attribute__ ((unused));

static char *attrib_to_str (int x)

{

        switch (x) {

        case 0: return "uncachable";

        case 1: return "write-combining";

        case 4: return "write-through";

        case 5: return "write-protect";

        case 6: return "write-back";

        default: return "?";

        }

}   /*  End Function attrib_to_str  */

#ifdef __KERNEL__

#ifdef CONFIG_MTRR

extern void check_mtrr_config(void);

extern void init_mtrr_config(void);

/* extern void set_mtrr_config(void); */

#endif /* CONFIG_MTRR */

#endif /* __KERNEL__ */

#endif /* _LINUX_MTRR_H */