You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
36 lines
799 B
36 lines
799 B
4 years ago
|
/** @file
|
||
|
|
CpuPause function.
|
||
|
|
|
||
|
|
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.
|
||
|
|
|
||
|
|
**/
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
Requests CPU to pause for a short period of time.
|
||
|
|
|
||
|
|
Requests CPU to pause for a short period of time. Typically used in MP
|
||
|
|
systems to prevent memory starvation while waiting for a spin lock.
|
||
|
|
|
||
|
|
**/
|
||
|
|
VOID
|
||
|
|
EFIAPI
|
||
|
|
CpuPause (
|
||
|
|
VOID
|
||
|
|
)
|
||
|
|
{
|
||
|
|
_asm {
|
||
|
|
pause
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|