#------------------------------------------------------------------------------ # # Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.
# 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: # # EnableCache.S # # Abstract: # # Flush all caches with a WBINVD instruction, clear the CD bit of CR0 to 0, and clear # the NW bit of CR0 to 0 # # Notes: # #------------------------------------------------------------------------------ #------------------------------------------------------------------------------ # VOID # EFIAPI # AsmEnableCache ( # VOID # ); #------------------------------------------------------------------------------ ASM_GLOBAL ASM_PFX(AsmEnableCache) ASM_PFX(AsmEnableCache): wbinvd movl %cr0, %eax btrl $30, %eax btrl $29, %eax movl %eax, %cr0 ret