1/****************************************************************************
2 ****************************************************************************
3 ***
4 ***   This header was automatically generated from a Linux kernel header
5 ***   of the same name, to make information necessary for userspace to
6 ***   call into the kernel available to libc.  It contains only constants,
7 ***   structures, and macros generated from the original header, and thus,
8 ***   contains no copyrightable information.
9 ***
10 ***   To edit the content of this header, modify the corresponding
11 ***   source file (e.g. under external/kernel-headers/original/) then
12 ***   run bionic/libc/kernel/tools/update_all.py
13 ***
14 ***   Any manual change here will be lost the next time this script will
15 ***   be run. You've been warned!
16 ***
17 ****************************************************************************
18 ****************************************************************************/
19#ifndef _UAPI_ASM_X86_MTRR_H
20#define _UAPI_ASM_X86_MTRR_H
21#include <linux/types.h>
22#include <linux/ioctl.h>
23#include <linux/errno.h>
24#define MTRR_IOCTL_BASE 'M'
25#ifdef __i386__
26struct mtrr_sentry {
27  unsigned long base;
28  unsigned int size;
29  unsigned int type;
30};
31struct mtrr_gentry {
32  unsigned int regnum;
33  unsigned long base;
34  unsigned int size;
35  unsigned int type;
36};
37#else
38struct mtrr_sentry {
39  __u64 base;
40  __u32 size;
41  __u32 type;
42};
43struct mtrr_gentry {
44  __u64 base;
45  __u32 size;
46  __u32 regnum;
47  __u32 type;
48  __u32 _pad;
49};
50#endif
51struct mtrr_var_range {
52  __u32 base_lo;
53  __u32 base_hi;
54  __u32 mask_lo;
55  __u32 mask_hi;
56};
57typedef __u8 mtrr_type;
58#define MTRR_NUM_FIXED_RANGES 88
59#define MTRR_MAX_VAR_RANGES 256
60struct mtrr_state_type {
61  struct mtrr_var_range var_ranges[MTRR_MAX_VAR_RANGES];
62  mtrr_type fixed_ranges[MTRR_NUM_FIXED_RANGES];
63  unsigned char enabled;
64  unsigned char have_fixed;
65  mtrr_type def_type;
66};
67#define MTRRphysBase_MSR(reg) (0x200 + 2 * (reg))
68#define MTRRphysMask_MSR(reg) (0x200 + 2 * (reg) + 1)
69#define MTRRIOC_ADD_ENTRY _IOW(MTRR_IOCTL_BASE, 0, struct mtrr_sentry)
70#define MTRRIOC_SET_ENTRY _IOW(MTRR_IOCTL_BASE, 1, struct mtrr_sentry)
71#define MTRRIOC_DEL_ENTRY _IOW(MTRR_IOCTL_BASE, 2, struct mtrr_sentry)
72#define MTRRIOC_GET_ENTRY _IOWR(MTRR_IOCTL_BASE, 3, struct mtrr_gentry)
73#define MTRRIOC_KILL_ENTRY _IOW(MTRR_IOCTL_BASE, 4, struct mtrr_sentry)
74#define MTRRIOC_ADD_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 5, struct mtrr_sentry)
75#define MTRRIOC_SET_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 6, struct mtrr_sentry)
76#define MTRRIOC_DEL_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 7, struct mtrr_sentry)
77#define MTRRIOC_GET_PAGE_ENTRY _IOWR(MTRR_IOCTL_BASE, 8, struct mtrr_gentry)
78#define MTRRIOC_KILL_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 9, struct mtrr_sentry)
79#define MTRR_TYPE_UNCACHABLE 0
80#define MTRR_TYPE_WRCOMB 1
81#define MTRR_TYPE_WRTHROUGH 4
82#define MTRR_TYPE_WRPROT 5
83#define MTRR_TYPE_WRBACK 6
84#define MTRR_NUM_TYPES 7
85#define MTRR_TYPE_INVALID 0xff
86#endif
87