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/usr/src/linux-headers-5.15.0-190/arch/x86/include/uapi/asm/

/usr/src/linux-headers-5.15.0-190/arch/x86/include/uapi/asm

Name	Size	Mode	Actions
a.out.h	756	0644	edit dl rm
auxvec.h	546	0644	edit dl rm
bitsperlong.h	321	0644	edit dl rm
boot.h	338	0644	edit dl rm
bootparam.h	8233	0644	edit dl rm
byteorder.h	200	0644	edit dl rm
debugreg.h	3344	0644	edit dl rm
e820.h	2620	0644	edit dl rm
hwcap2.h	324	0644	edit dl rm
hw_breakpoint.h	69	0644	edit dl rm
ist.h	869	0644	edit dl rm
Kbuild	117	0644	edit dl rm
kvm.h	10858	0644	edit dl rm
kvm_para.h	4315	0644	edit dl rm
kvm_perf.h	388	0644	edit dl rm
ldt.h	1306	0644	edit dl rm
mce.h	1745	0644	edit dl rm
mman.h	1002	0644	edit dl rm
msgbuf.h	1079	0644	edit dl rm
msr.h	361	0644	edit dl rm
mtrr.h	4240	0644	edit dl rm
perf_regs.h	1403	0644	edit dl rm
posix_types.h	250	0644	edit dl rm
posix_types_32.h	765	0644	edit dl rm
posix_types_64.h	609	0644	edit dl rm
posix_types_x32.h	581	0644	edit dl rm
prctl.h	524	0644	edit dl rm
processor-flags.h	6638	0644	edit dl rm
ptrace-abi.h	2037	0644	edit dl rm
ptrace.h	1630	0644	edit dl rm
sembuf.h	1070	0644	edit dl rm
setup.h	6	0644	edit dl rm
sgx.h	5935	0644	edit dl rm
shmbuf.h	1258	0644	edit dl rm
sigcontext.h	9950	0644	edit dl rm
sigcontext32.h	271	0644	edit dl rm
siginfo.h	422	0644	edit dl rm
signal.h	2200	0644	edit dl rm
stat.h	3131	0644	edit dl rm
statfs.h	416	0644	edit dl rm
svm.h	8917	0644	edit dl rm
swab.h	769	0644	edit dl rm
ucontext.h	2117	0644	edit dl rm
unistd.h	664	0644	edit dl rm
vm86.h	3201	0644	edit dl rm
vmx.h	7383	0644	edit dl rm
vsyscall.h	278	0644	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-190/arch/x86/include/uapi/asm/mtrr.h (4240B)

/* SPDX-License-Identifier: LGPL-2.0+ WITH Linux-syscall-note */
/*  Generic MTRR (Memory Type Range Register) ioctls.

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 _UAPI_ASM_X86_MTRR_H
#define _UAPI_ASM_X86_MTRR_H

#include <linux/types.h>
#include <linux/ioctl.h>
#include <linux/errno.h>

#define	MTRR_IOCTL_BASE	'M'

/* 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. */

#ifdef __i386__
struct mtrr_sentry {
    unsigned long base;    /*  Base address     */
    unsigned int size;    /*  Size of region   */
    unsigned int type;     /*  Type of region   */
};

struct mtrr_gentry {
    unsigned int regnum;   /*  Register number  */
    unsigned long base;    /*  Base address     */
    unsigned int size;    /*  Size of region   */
    unsigned int type;     /*  Type of region   */
};

#else /* __i386__ */

struct mtrr_sentry {
	__u64 base;		/*  Base address     */
	__u32 size;		/*  Size of region   */
	__u32 type;		/*  Type of region   */
};

struct mtrr_gentry {
	__u64 base;		/*  Base address     */
	__u32 size;		/*  Size of region   */
	__u32 regnum;		/*  Register number  */
	__u32 type;		/*  Type of region   */
	__u32 _pad;		/*  Unused	     */
};

#endif /* !__i386__ */

struct mtrr_var_range {
	__u32 base_lo;
	__u32 base_hi;
	__u32 mask_lo;
	__u32 mask_hi;
};

/* In the Intel processor's MTRR interface, the MTRR type is always held in
   an 8 bit field: */
typedef __u8 mtrr_type;

#define MTRR_NUM_FIXED_RANGES 88
#define MTRR_MAX_VAR_RANGES 256

struct mtrr_state_type {
	struct mtrr_var_range var_ranges[MTRR_MAX_VAR_RANGES];
	mtrr_type fixed_ranges[MTRR_NUM_FIXED_RANGES];
	unsigned char enabled;
	unsigned char have_fixed;
	mtrr_type def_type;
};

#define MTRRphysBase_MSR(reg) (0x200 + 2 * (reg))
#define MTRRphysMask_MSR(reg) (0x200 + 2 * (reg) + 1)

/*  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)

/* MTRR memory types, which are defined in SDM */
#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

/*
 * Invalid MTRR memory type.  mtrr_type_lookup() returns this value when
 * MTRRs are disabled.  Note, this value is allocated from the reserved
 * values (0x7-0xff) of the MTRR memory types.
 */
#define MTRR_TYPE_INVALID    0xff

#endif /* _UAPI_ASM_X86_MTRR_H */

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