libc/kernel/uapi/asm-x86/asm/mtrr.h

/****************************************************************************
 ****************************************************************************
 ***
 ***   This header was automatically generated from a Linux kernel header
 ***   of the same name, to make information necessary for userspace to
 ***   call into the kernel available to libc.  It contains only constants,
 ***   structures, and macros generated from the original header, and thus,
 ***   contains no copyrightable information.
 ***
 ***   To edit the content of this header, modify the corresponding
 ***   source file (e.g. under external/kernel-headers/original/) then
 ***   run bionic/libc/kernel/tools/update_all.py
 ***
 ***   Any manual change here will be lost the next time this script will
 ***   be run. You've been warned!
 ***
 ****************************************************************************
 ****************************************************************************/
#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'
#ifdef __i386__
struct mtrr_sentry {
  unsigned long base;
  unsigned int size;
  unsigned int type;
};
struct mtrr_gentry {
  unsigned int regnum;
  unsigned long base;
  unsigned int size;
  unsigned int type;
};
#else
struct mtrr_sentry {
  __u64 base;
  __u32 size;
  __u32 type;
};
struct mtrr_gentry {
  __u64 base;
  __u32 size;
  __u32 regnum;
  __u32 type;
  __u32 _pad;
};
#endif
struct mtrr_var_range {
  __u32 base_lo;
  __u32 base_hi;
  __u32 mask_lo;
  __u32 mask_hi;
};
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)
#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)
#define MTRR_TYPE_UNCACHABLE 0
#define MTRR_TYPE_WRCOMB 1
#define MTRR_TYPE_WRTHROUGH 4
#define MTRR_TYPE_WRPROT 5
#define MTRR_TYPE_WRBACK 6
#define MTRR_NUM_TYPES 7
#define MTRR_TYPE_INVALID 0xff
#endif