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ArmPkg/ArmCpuLib: Replaced complex functions ArmCpuSynchronizeWait & ArmCpuSynchronizeSignal by sev & wfe

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Previsouly the synchronization of MpCore was using the SGI (Software
Generated Interrupt) to synchronize MpCore during the early boot.
This commit replaced this mechanism by the more appropriate SEV/WFE
instructions (Send/Wait Event instructions).
That also eases the port to a new cpu/platform.

Signed-off-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13249 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
oliviermartin
2012-05-02 19:55:32 +00:00
parent f463bb00ad
commit b1d41be7c9
19 changed files with 61 additions and 274 deletions
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4
ArmPlatformPkg/PrePi/PeiUniCore.inf
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@@ -1,6 +1,7 @@
#/** @file
#
# Copyright (c) 2011, ARM Ltd. All rights reserved.<BR>
# Copyright (c) 2011-2012, ARM Ltd. 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
@@ -38,7 +39,6 @@
BaseLib
DebugLib
DebugAgentLib
ArmCpuLib
ArmLib
IoLib
TimerLib