diff options
Diffstat (limited to 'MdePkg/Library/BaseLib/Ia32/FlushCacheLine.c')
-rw-r--r-- | MdePkg/Library/BaseLib/Ia32/FlushCacheLine.c | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/MdePkg/Library/BaseLib/Ia32/FlushCacheLine.c b/MdePkg/Library/BaseLib/Ia32/FlushCacheLine.c deleted file mode 100644 index 7ac4af353f..0000000000 --- a/MdePkg/Library/BaseLib/Ia32/FlushCacheLine.c +++ /dev/null @@ -1,58 +0,0 @@ -/** @file
- AsmFlushCacheLine function
-
- Copyright (c) 2006 - 2015, 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.
-
-**/
-
-
-
-
-/**
- Flushes a cache line from all the instruction and data caches within the
- coherency domain of the CPU.
-
- Flushed the cache line specified by LinearAddress, and returns LinearAddress.
- This function is only available on IA-32 and x64.
-
- @param LinearAddress The address of the cache line to flush. If the CPU is
- in a physical addressing mode, then LinearAddress is a
- physical address. If the CPU is in a virtual
- addressing mode, then LinearAddress is a virtual
- address.
-
- @return LinearAddress
-**/
-VOID *
-EFIAPI
-AsmFlushCacheLine (
- IN VOID *LinearAddress
- )
-{
- //
- // If the CPU does not support CLFLUSH instruction,
- // then promote flush range to flush entire cache.
- //
- _asm {
- mov eax, 1
- cpuid
- test edx, BIT19
- jz NoClflush
- mov eax, dword ptr [LinearAddress]
- clflush [eax]
- jmp Done
-NoClflush:
- wbinvd
-Done:
- }
-
- return LinearAddress;
-}
-
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