2f88bd3a12
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737 Apply uncrustify changes to .c/.h files in the MdePkg package Cc: Andrew Fish <afish@apple.com> Cc: Leif Lindholm <leif@nuviainc.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
30 lines
592 B
C
30 lines
592 B
C
/** @file
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AsmDisableCache function
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Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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/**
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Set CD bit and clear NW bit of CR0 followed by a WBINVD.
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Disables the caches by setting the CD bit of CR0 to 1, clearing the NW bit of CR0 to 0,
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and executing a WBINVD instruction. This function is only available on IA-32 and x64.
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**/
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VOID
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EFIAPI
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AsmDisableCache (
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VOID
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)
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{
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_asm {
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mov eax, cr0
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bts eax, 30
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btr eax, 29
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mov cr0, eax
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wbinvd
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}
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}
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