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/* Generic MTRR (Memory Type Range Register) ioctls.
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Copyright (C) 1997 Richard Gooch
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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Richard Gooch may be reached by email at rgooch@atnf.csiro.au
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The postal address is:
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Richard Gooch, c/o ATNF, P. O. Box 76, Epping, N.S.W., 2121, Australia.
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modified by Mathias Fr"ohlich, Jan, 1998
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<frohlich@na.uni-tuebingen.de>
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*/
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#ifndef _LINUX_MTRR_H
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#define _LINUX_MTRR_H
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/* These are the region types */
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#define MTRR_TYPE_UNCACHABLE 0
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#define MTRR_TYPE_WRCOMB 1
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/*#define MTRR_TYPE_ 2*/
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/*#define MTRR_TYPE_ 3*/
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#define MTRR_TYPE_WRTHROUGH 4
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#define MTRR_TYPE_WRPROT 5
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#define MTRR_TYPE_WRBACK 6
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#define MTRR_NUM_TYPES 7
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static char *attrib_to_str (int x) __attribute__ ((unused));
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static char *attrib_to_str (int x)
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{
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switch (x) {
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case 0: return "uncachable";
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case 1: return "write-combining";
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case 4: return "write-through";
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case 5: return "write-protect";
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case 6: return "write-back";
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default: return "?";
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}
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} /* End Function attrib_to_str */
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#ifdef __KERNEL__
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#ifdef CONFIG_MTRR
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extern void check_mtrr_config(void);
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extern void init_mtrr_config(void);
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/* extern void set_mtrr_config(void); */
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#endif /* CONFIG_MTRR */
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#endif /* __KERNEL__ */
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#endif /* _LINUX_MTRR_H */
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