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2021-12-07MdePkg: Apply uncrustify changesMichael Kubacki1-46/+53
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737 Apply uncrustify changes to .c/.h files in the MdePkg package Cc: Andrew Fish <afish@apple.com> Cc: Leif Lindholm <leif@nuviainc.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
2019-04-09MdePkg: Replace BSD License with BSD+Patent LicenseMichael D Kinney1-7/+1
https://bugzilla.tianocore.org/show_bug.cgi?id=1373 Replace BSD 2-Clause License with BSD+Patent License. This change is based on the following emails: https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html RFCs with detailed process for the license change: V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
2018-09-25MdePkg/SynchronizationLib: fix Interlocked[De|In]crement return valueRuiyu Ni1-4/+2
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1197 Today's InterlockedIncrement()/InterlockedDecrement() guarantees to perform atomic increment/decrement but doesn't guarantee the return value equals to the new value. The patch fixes the behavior to use "XADD" instruction to guarantee the return value equals to the new value. The patch calls intrinsic functions for MSVC tool chain, calls the NASM implementation for INTEL tool chain and calls GCC inline assembly implementation (GccInline.c) for GCC tool chain. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com> Cc: Michael D Kinney <michael.d.kinney@intel.com>
2018-06-28MdePkg: Clean up source filesLiming Gao1-3/+3
1. Do not use tab characters 2. No trailing white space in one line 3. All files must end with CRLF Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Liming Gao <liming.gao@intel.com>
2016-11-18MdePkg/BaseSynchronizationLib: Add volatile Interlocked*() APIsMichael Kinney1-8/+8
The SpinLock functions in the SynchronicationLib use volatile parameters to keep compiler from optimizing these functions too much. The volatile keyword is missing from the Interlocked*() functions in this same library instance. Update the library instance to consistently use volatile on all functions in the SynchronizationLib class. Cc: Liming Gao <liming.gao@intel.com> Cc: Laszlo Ersek <lersek@redhat.com> Cc: Andrew Fish <afish@apple.com> Cc: Jeff Fan <jeff.fan@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Kinney <michael.d.kinney@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
2016-04-05MdePkg/BaseSynchronizationLib: Add spin lock alignment for IA32/x64Jeff Fan1-1/+1
From Intel(R) 64 and IA-32 Architectures Software Developer's Manual, one lock or semaphore is suggested to be present within a cache line. If the processors are based on Intel NetBurst microarchitecture, two cache lines are suggested. This could minimize the bus traffic required to service locks. Cc: Michael Kinney <michael.d.kinney@intel.com> Cc: Liming Gao <liming.gao@intel.com> Cc: Star Zeng <star.zeng@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com>
2016-04-05MdePkg/BaseSynchronizationLib: Do not check timeout if lock releasedJeff Fan1-6/+6
Current AcquireSpinLock() will check if timeout happens when PcdSpinLockTimeout is not zero, even though the spin lock is already released. It may do unnecessary operation to read timer's counter. This update is trying to acquire spin lock firstly. If it could be acquired successfully, needn't to check timeout at all. Cc: Michael Kinney <michael.d.kinney@intel.com> Cc: Liming Gao <liming.gao@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
2015-02-28MdePkg/BaseSynchronizationLib: Add InterlockedCompareExchange16Ard Biesheuvel1-0/+31
This implements the function InterlockedCompareExchange16 () for all architectures, using architecture and toolchain specific intrinsics or primitive assembler instructions. Contributed-under: TianoCore Contribution Agreement 1.0 Reviewed-by: Olivier Martin <olivier.martin@arm.com> Acked-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Michael Kinney <michael.d.kinney@intel.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Laszlo Ersek <lersek@redhat.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16966 6f19259b-4bc3-4df7-8a09-765794883524
2012-03-07Clarify alignment of GetSpinLockProperties() is byte alignment.lgao41-3/+3
Signed-off-by: lgao4 Reviewed-by: mdkinney git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13086 6f19259b-4bc3-4df7-8a09-765794883524
2010-08-13Refine code.sfu51-2/+2
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10793 6f19259b-4bc3-4df7-8a09-765794883524
2010-06-26Minor grammatical work--mostly adding periods. Items with ONLY period added ↵myronporter1-10/+10
did not have the heading date changed, but Items with content changes had heading copyright dates updated. Sending separately a list of files missing Doxygen @param and @return information. (PENDING) git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10604 6f19259b-4bc3-4df7-8a09-765794883524
2010-04-23Update the copyright notice formathhtian1-2/+2
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10413 6f19259b-4bc3-4df7-8a09-765794883524
2009-01-30Split out Synchronization Library from Base Librarymdkinney1-0/+405
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7377 6f19259b-4bc3-4df7-8a09-765794883524
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