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Commit | Line | Data |
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e1f414b6 | 1 | ;------------------------------------------------------------------------------\r |
2 | ;\r | |
881813d7 | 3 | ; Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>\r |
bb817c56 | 4 | ; This program and the accompanying materials\r |
e1f414b6 | 5 | ; are licensed and made available under the terms and conditions of the BSD License\r |
6 | ; which accompanies this distribution. The full text of the license may be found at\r | |
35a17154 | 7 | ; http://opensource.org/licenses/bsd-license.php.\r |
e1f414b6 | 8 | ;\r |
9 | ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
10 | ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
11 | ;\r | |
12 | ; Module Name:\r | |
13 | ;\r | |
14 | ; FlushCacheLine.Asm\r | |
15 | ;\r | |
16 | ; Abstract:\r | |
17 | ;\r | |
18 | ; AsmFlushCacheLine function\r | |
19 | ;\r | |
20 | ; Notes:\r | |
21 | ;\r | |
22 | ;------------------------------------------------------------------------------\r | |
23 | \r | |
24 | .586P\r | |
25 | .model flat,C\r | |
26 | .xmm\r | |
27 | .code\r | |
28 | \r | |
29 | ;------------------------------------------------------------------------------\r | |
30 | ; VOID *\r | |
31 | ; EFIAPI\r | |
32 | ; AsmFlushCacheLine (\r | |
33 | ; IN VOID *LinearAddress\r | |
34 | ; );\r | |
35 | ;------------------------------------------------------------------------------\r | |
36 | AsmFlushCacheLine PROC\r | |
881813d7 MK |
37 | ;\r |
38 | ; If the CPU does not support CLFLUSH instruction, \r | |
39 | ; then promote flush range to flush entire cache.\r | |
40 | ;\r | |
41 | mov eax, 1\r | |
6f7878a9 | 42 | push ebx\r |
881813d7 | 43 | cpuid\r |
6f7878a9 | 44 | pop ebx\r |
e1f414b6 | 45 | mov eax, [esp + 4]\r |
881813d7 MK |
46 | test edx, BIT19\r |
47 | jz @F\r | |
e1f414b6 | 48 | clflush [eax]\r |
49 | ret\r | |
881813d7 MK |
50 | @@:\r |
51 | wbinvd\r | |
52 | ret\r | |
e1f414b6 | 53 | AsmFlushCacheLine ENDP\r |
54 | \r | |
55 | END\r |