#------------------------------------------------------------------------------

#

# Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>

# This program and the accompanying materials

# are licensed and made available under the terms and conditions of the BSD License

# which accompanies this distribution. The full text of the license may be found at

# http://opensource.org/licenses/bsd-license.php.

#

# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,

# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

#

# Module Name:

#

# DisableCache.S

#

# Abstract:

#

# Set the CD bit of CR0 to 1, clear the NW bit of CR0 to 0, and flush all caches with a

# WBINVD instruction.

#

# Notes:

#

#------------------------------------------------------------------------------

#------------------------------------------------------------------------------

# VOID

# EFIAPI

# AsmDisableCache (

# VOID

# );

#------------------------------------------------------------------------------

ASM_GLOBAL ASM_PFX(AsmDisableCache)

ASM_PFX(AsmDisableCache):

movq %cr0, %rax

btsq $30, %rax

btrq $29, %rax

movq %rax, %cr0

wbinvd

ret