Tianocore/edk2.git/MdePkg/Library/BaseSynchronizationLib/SynchronizationGcc.c, branch master

MdePkg: Apply uncrustify changes

2021-12-07T17:24:28+00:00

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737 Apply uncrustify changes to .c/.h files in the MdePkg package Cc: Andrew Fish Cc: Leif Lindholm Cc: Michael D Kinney Signed-off-by: Michael Kubacki Reviewed-by: Liming Gao

MdePkg: Replace BSD License with BSD+Patent License

2019-04-09T17:58:13+00:00

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 Reviewed-by: Liming Gao

MdePkg/SynchronizationLib: fix Interlocked[De|In]crement return value

2018-09-25T02:02:53+00:00

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 Cc: Jiewen Yao Reviewed-by: Liming Gao Cc: Michael D Kinney

MdePkg: Clean up source files

2018-06-28T03:19:47+00:00

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

MdePkg/BaseSynchronizationLib: Add volatile Interlocked*() APIs

2016-11-18T01:08:19+00:00

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 Cc: Laszlo Ersek Cc: Andrew Fish Cc: Jeff Fan Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Kinney Reviewed-by: Laszlo Ersek Reviewed-by: Liming Gao

MdePkg/BaseSynchronizationLib: Add spin lock alignment for IA32/x64

2016-04-05T06:07:15+00:00

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 Cc: Liming Gao Cc: Star Zeng Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jeff Fan Reviewed-by: Liming Gao Reviewed-by: Star Zeng

MdePkg/BaseSynchronizationLib: Do not check timeout if lock released

2016-04-05T06:07:15+00:00

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 Cc: Liming Gao Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jeff Fan Reviewed-by: Liming Gao

MdePkg/BaseSynchronizationLib: Add InterlockedCompareExchange16

2015-02-28T20:31:54+00:00

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 Acked-by: Jordan Justen Reviewed-by: Michael Kinney Signed-off-by: Ard Biesheuvel Signed-off-by: Laszlo Ersek git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16966 6f19259b-4bc3-4df7-8a09-765794883524

Clarify alignment of GetSpinLockProperties() is byte alignment.

2012-03-07T01:40:44+00:00

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

Minor grammatical work--mostly adding periods. Items with ONLY period added 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)

2010-06-25T21:56:02+00:00

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10604 6f19259b-4bc3-4df7-8a09-765794883524