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authorMitchell Horne <mhorne@FreeBSD.org>2020-06-03 18:44:51 +0000
committerMitchell Horne <mhorne@FreeBSD.org>2020-06-03 18:44:51 +0000
commit4a14dfcc1110b35118d5be8054fecf59ffb83032 (patch)
tree8bf1574ccba91c926acbe0a05d32482ba8825e26 /MdePkg/Library/BaseCpuLib/Ipf/CpuSleep.c
parent0499b37cea9ca98acfe36368e521ad36b7783f2d (diff)
downloadsrc-vendor/edk2.tar.gz
src-vendor/edk2.zip
As with the previous import, only the MdePkg subdirectory has been brought in. The line-endings were also converted using: % find . -type f | xargs -n 1 sed -I.BAK -e `printf "s/\r//g"` % find . -name \*.BAK | xargs rm
Notes
Notes: svn path=/vendor/edk2/dist/; revision=361765 svn path=/vendor/edk2/ca407c7246bf405da6d9b1b9d93e5e7f17b4b1f9/; revision=361766; tag=vendor/edk2/ca407c7246bf405da6d9b1b9d93e5e7f17b4b1f9
Diffstat (limited to 'MdePkg/Library/BaseCpuLib/Ipf/CpuSleep.c')
-rw-r--r--MdePkg/Library/BaseCpuLib/Ipf/CpuSleep.c66
1 files changed, 0 insertions, 66 deletions
diff --git a/MdePkg/Library/BaseCpuLib/Ipf/CpuSleep.c b/MdePkg/Library/BaseCpuLib/Ipf/CpuSleep.c
deleted file mode 100644
index 86d2c184772b..000000000000
--- a/MdePkg/Library/BaseCpuLib/Ipf/CpuSleep.c
+++ /dev/null
@@ -1,66 +0,0 @@
-/** @file
- Base Library CPU functions for Itanium
-
- Copyright (c) 2006 - 2009, 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.
-
-**/
-
-#include <Library/PalLib.h>
-#include <Library/BaseLib.h>
-
-/**
- Places the CPU in a sleep state until an interrupt is received.
-
- Places the CPU in a sleep state until an interrupt is received. If interrupts
- are disabled prior to calling this function, then the CPU will be placed in a
- sleep state indefinitely.
-
-**/
-VOID
-EFIAPI
-CpuSleep (
- VOID
- )
-{
- UINT64 Tpr;
-
- //
- // It is the TPR register that controls if external interrupt would bring processor in LIGHT HALT low-power state
- // back to normal state. PAL_HALT_LIGHT does not depend on PSR setting.
- // So here if interrupts are disabled (via PSR.i), TRP.mmi needs to be set to prevent processor being interrupted by external interrupts.
- // If interrupts are enabled, then just use current TRP setting.
- //
- if (GetInterruptState ()) {
- //
- // If interrupts are enabled, then call PAL_HALT_LIGHT with the current TPR setting.
- //
- PalCall (PAL_HALT_LIGHT, 0, 0, 0);
- } else {
- //
- // If interrupts are disabled on entry, then mask all interrupts in TPR before calling PAL_HALT_LIGHT.
- //
-
- //
- // Save TPR
- //
- Tpr = AsmReadTpr();
- //
- // Set TPR.mmi to mask all external interrupts
- //
- AsmWriteTpr (BIT16 | Tpr);
-
- PalCall (PAL_HALT_LIGHT, 0, 0, 0);
-
- //
- // Restore TPR
- //
- AsmWriteTpr (Tpr);
- }
-}