[mirror_ubuntu-artful-kernel.git] / include / asm-x86_64 / mtrr.h

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

    Copyright (C) 1997-1999  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.
*/
#ifndef _LINUX_MTRR_H
#define _LINUX_MTRR_H

#include <linux/ioctl.h>

#define	MTRR_IOCTL_BASE	'M'

struct mtrr_sentry
{
    unsigned long base;    /*  Base address     */
    unsigned int size;    /*  Size of region   */
    unsigned int type;     /*  Type of region   */
};

/* Warning: this structure has a different order from i386
   on x86-64. The 32bit emulation code takes care of that.
   But you need to use this for 64bit, otherwise your X server
   will break. */
struct mtrr_gentry
{
    unsigned long base;    /*  Base address     */
    unsigned int size;    /*  Size of region   */
    unsigned int regnum;   /*  Register number  */
    unsigned int type;     /*  Type of region   */
};

/*  These are the various ioctls  */
#define MTRRIOC_ADD_ENTRY        _IOW(MTRR_IOCTL_BASE,  0, struct mtrr_sentry)
#define MTRRIOC_SET_ENTRY        _IOW(MTRR_IOCTL_BASE,  1, struct mtrr_sentry)
#define MTRRIOC_DEL_ENTRY        _IOW(MTRR_IOCTL_BASE,  2, struct mtrr_sentry)
#define MTRRIOC_GET_ENTRY        _IOWR(MTRR_IOCTL_BASE, 3, struct mtrr_gentry)
#define MTRRIOC_KILL_ENTRY       _IOW(MTRR_IOCTL_BASE,  4, struct mtrr_sentry)
#define MTRRIOC_ADD_PAGE_ENTRY   _IOW(MTRR_IOCTL_BASE,  5, struct mtrr_sentry)
#define MTRRIOC_SET_PAGE_ENTRY   _IOW(MTRR_IOCTL_BASE,  6, struct mtrr_sentry)
#define MTRRIOC_DEL_PAGE_ENTRY   _IOW(MTRR_IOCTL_BASE,  7, struct mtrr_sentry)
#define MTRRIOC_GET_PAGE_ENTRY   _IOWR(MTRR_IOCTL_BASE, 8, struct mtrr_gentry)
#define MTRRIOC_KILL_PAGE_ENTRY  _IOW(MTRR_IOCTL_BASE,  9, struct mtrr_sentry)

/*  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

#ifdef __KERNEL__

/*  The following functions are for use by other drivers  */
# ifdef CONFIG_MTRR
extern int mtrr_add (unsigned long base, unsigned long size,
		     unsigned int type, char increment);
extern int mtrr_add_page (unsigned long base, unsigned long size,
		     unsigned int type, char increment);
extern int mtrr_del (int reg, unsigned long base, unsigned long size);
extern int mtrr_del_page (int reg, unsigned long base, unsigned long size);
#  else
static __inline__ int mtrr_add (unsigned long base, unsigned long size,
				unsigned int type, char increment)
{
    return -ENODEV;
}
static __inline__ int mtrr_add_page (unsigned long base, unsigned long size,
				unsigned int type, char increment)
{
    return -ENODEV;
}
static __inline__ int mtrr_del (int reg, unsigned long base,
				unsigned long size)
{
    return -ENODEV;
}
static __inline__ int mtrr_del_page (int reg, unsigned long base,
				unsigned long size)
{
    return -ENODEV;
}

#endif /* CONFIG_MTRR */

#ifdef CONFIG_COMPAT
#include <linux/compat.h>

struct mtrr_sentry32
{
    compat_ulong_t base;    /*  Base address     */
    compat_uint_t size;    /*  Size of region   */
    compat_uint_t type;     /*  Type of region   */
};

struct mtrr_gentry32
{
    compat_ulong_t regnum;   /*  Register number  */
    compat_uint_t base;    /*  Base address     */
    compat_uint_t size;    /*  Size of region   */
    compat_uint_t type;     /*  Type of region   */
};

#define MTRR_IOCTL_BASE 'M'

#define MTRRIOC32_ADD_ENTRY        _IOW(MTRR_IOCTL_BASE,  0, struct mtrr_sentry32)
#define MTRRIOC32_SET_ENTRY        _IOW(MTRR_IOCTL_BASE,  1, struct mtrr_sentry32)
#define MTRRIOC32_DEL_ENTRY        _IOW(MTRR_IOCTL_BASE,  2, struct mtrr_sentry32)
#define MTRRIOC32_GET_ENTRY        _IOWR(MTRR_IOCTL_BASE, 3, struct mtrr_gentry32)
#define MTRRIOC32_KILL_ENTRY       _IOW(MTRR_IOCTL_BASE,  4, struct mtrr_sentry32)
#define MTRRIOC32_ADD_PAGE_ENTRY   _IOW(MTRR_IOCTL_BASE,  5, struct mtrr_sentry32)
#define MTRRIOC32_SET_PAGE_ENTRY   _IOW(MTRR_IOCTL_BASE,  6, struct mtrr_sentry32)
#define MTRRIOC32_DEL_PAGE_ENTRY   _IOW(MTRR_IOCTL_BASE,  7, struct mtrr_sentry32)
#define MTRRIOC32_GET_PAGE_ENTRY   _IOWR(MTRR_IOCTL_BASE, 8, struct mtrr_gentry32)
#define MTRRIOC32_KILL_PAGE_ENTRY  _IOW(MTRR_IOCTL_BASE,  9, struct mtrr_sentry32)

#endif /* CONFIG_COMPAT */

#endif /* __KERNEL__ */

#endif  /*  _LINUX_MTRR_H  */
Commit	Line	Data
1da177e4 LT	1	/* Generic MTRR (Memory Type Range Register) ioctls.
	2
	3	Copyright (C) 1997-1999 Richard Gooch
	4
	5	This library is free software; you can redistribute it and/or
	6	modify it under the terms of the GNU Library General Public
	7	License as published by the Free Software Foundation; either
	8	version 2 of the License, or (at your option) any later version.
	9
	10	This library is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	Library General Public License for more details.
	14
	15	You should have received a copy of the GNU Library General Public
	16	License along with this library; if not, write to the Free
	17	Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	18
	19	Richard Gooch may be reached by email at rgooch@atnf.csiro.au
	20	The postal address is:
	21	Richard Gooch, c/o ATNF, P. O. Box 76, Epping, N.S.W., 2121, Australia.
	22	*/
	23	#ifndef _LINUX_MTRR_H
	24	#define _LINUX_MTRR_H
	25
1da177e4 LT	26	#include <linux/ioctl.h>
	27
	28	#define MTRR_IOCTL_BASE 'M'
	29
	30	struct mtrr_sentry
	31	{
	32	unsigned long base; /* Base address */
	33	unsigned int size; /* Size of region */
	34	unsigned int type; /* Type of region */
	35	};
	36
	37	/* Warning: this structure has a different order from i386
	38	on x86-64. The 32bit emulation code takes care of that.
	39	But you need to use this for 64bit, otherwise your X server
	40	will break. */
	41	struct mtrr_gentry
	42	{
	43	unsigned long base; /* Base address */
	44	unsigned int size; /* Size of region */
	45	unsigned int regnum; /* Register number */
	46	unsigned int type; /* Type of region */
	47	};
	48
	49	/* These are the various ioctls */
	50	#define MTRRIOC_ADD_ENTRY _IOW(MTRR_IOCTL_BASE, 0, struct mtrr_sentry)
	51	#define MTRRIOC_SET_ENTRY _IOW(MTRR_IOCTL_BASE, 1, struct mtrr_sentry)
	52	#define MTRRIOC_DEL_ENTRY _IOW(MTRR_IOCTL_BASE, 2, struct mtrr_sentry)
	53	#define MTRRIOC_GET_ENTRY _IOWR(MTRR_IOCTL_BASE, 3, struct mtrr_gentry)
	54	#define MTRRIOC_KILL_ENTRY _IOW(MTRR_IOCTL_BASE, 4, struct mtrr_sentry)
	55	#define MTRRIOC_ADD_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 5, struct mtrr_sentry)
	56	#define MTRRIOC_SET_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 6, struct mtrr_sentry)
	57	#define MTRRIOC_DEL_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 7, struct mtrr_sentry)
	58	#define MTRRIOC_GET_PAGE_ENTRY _IOWR(MTRR_IOCTL_BASE, 8, struct mtrr_gentry)
	59	#define MTRRIOC_KILL_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 9, struct mtrr_sentry)
	60
	61	/* These are the region types */
	62	#define MTRR_TYPE_UNCACHABLE 0
	63	#define MTRR_TYPE_WRCOMB 1
	64	/#define MTRR_TYPE_ 2/
	65	/#define MTRR_TYPE_ 3/
	66	#define MTRR_TYPE_WRTHROUGH 4
	67	#define MTRR_TYPE_WRPROT 5
	68	#define MTRR_TYPE_WRBACK 6
	69	#define MTRR_NUM_TYPES 7
	70
	71	#ifdef __KERNEL__
	72
	73	/* The following functions are for use by other drivers */
	74	# ifdef CONFIG_MTRR
	75	extern int mtrr_add (unsigned long base, unsigned long size,
	76	unsigned int type, char increment);
	77	extern int mtrr_add_page (unsigned long base, unsigned long size,
	78	unsigned int type, char increment);
	79	extern int mtrr_del (int reg, unsigned long base, unsigned long size);
	80	extern int mtrr_del_page (int reg, unsigned long base, unsigned long size);
	81	# else
	82	static __inline__ int mtrr_add (unsigned long base, unsigned long size,
	83	unsigned int type, char increment)
	84	{
	85	return -ENODEV;
	86	}
	87	static __inline__ int mtrr_add_page (unsigned long base, unsigned long size,
	88	unsigned int type, char increment)
	89	{
90	return -ENODEV;
91	}
92	static __inline__ int mtrr_del (int reg, unsigned long base,
93	unsigned long size)
94	{
95	return -ENODEV;
96	}
97	static __inline__ int mtrr_del_page (int reg, unsigned long base,
98	unsigned long size)
99	{
100	return -ENODEV;
101	}
102
2c23d62a	103	#endif /* CONFIG_MTRR */
1da177e4	104
c5311781	105	#ifdef CONFIG_COMPAT
2c23d62a	106	#include <linux/compat.h>
c5311781 BG	107
	108	struct mtrr_sentry32
	109	{
	110	compat_ulong_t base; /* Base address */
	111	compat_uint_t size; /* Size of region */
	112	compat_uint_t type; /* Type of region */
	113	};
	114
	115	struct mtrr_gentry32
	116	{
	117	compat_ulong_t regnum; /* Register number */
	118	compat_uint_t base; /* Base address */
	119	compat_uint_t size; /* Size of region */
	120	compat_uint_t type; /* Type of region */
	121	};
	122
	123	#define MTRR_IOCTL_BASE 'M'
	124
	125	#define MTRRIOC32_ADD_ENTRY _IOW(MTRR_IOCTL_BASE, 0, struct mtrr_sentry32)
	126	#define MTRRIOC32_SET_ENTRY _IOW(MTRR_IOCTL_BASE, 1, struct mtrr_sentry32)
	127	#define MTRRIOC32_DEL_ENTRY _IOW(MTRR_IOCTL_BASE, 2, struct mtrr_sentry32)
	128	#define MTRRIOC32_GET_ENTRY _IOWR(MTRR_IOCTL_BASE, 3, struct mtrr_gentry32)
	129	#define MTRRIOC32_KILL_ENTRY _IOW(MTRR_IOCTL_BASE, 4, struct mtrr_sentry32)
	130	#define MTRRIOC32_ADD_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 5, struct mtrr_sentry32)
	131	#define MTRRIOC32_SET_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 6, struct mtrr_sentry32)
	132	#define MTRRIOC32_DEL_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 7, struct mtrr_sentry32)
	133	#define MTRRIOC32_GET_PAGE_ENTRY _IOWR(MTRR_IOCTL_BASE, 8, struct mtrr_gentry32)
	134	#define MTRRIOC32_KILL_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 9, struct mtrr_sentry32)
	135
	136	#endif /* CONFIG_COMPAT */
	137
2c23d62a DW	138	#endif /* __KERNEL__ */
2c23d62a DW	139
1da177e4	140	#endif /* _LINUX_MTRR_H */