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authorlgao4 <lgao4@6f19259b-4bc3-4df7-8a09-765794883524>2012-03-07 01:40:44 +0000
committerlgao4 <lgao4@6f19259b-4bc3-4df7-8a09-765794883524>2012-03-07 01:40:44 +0000
commit744265eb0af7bb4bdc4a00fadb1f68795f3b6894 (patch)
treec69eefb14fa5452e9dafe0bd88ac4795c6b45da6
parent9c9225255d0e85c2274e8d4df6103e6c5c92600a (diff)
downloadedk2-platforms-744265eb0af7bb4bdc4a00fadb1f68795f3b6894.tar.xz
Clarify alignment of GetSpinLockProperties() is byte alignment.
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
-rw-r--r--MdePkg/Include/Library/SynchronizationLib.h6
-rw-r--r--MdePkg/Library/BaseSynchronizationLib/Synchronization.c6
-rw-r--r--MdePkg/Library/BaseSynchronizationLib/SynchronizationGcc.c6
-rw-r--r--MdePkg/Library/BaseSynchronizationLib/SynchronizationMsc.c6
4 files changed, 12 insertions, 12 deletions
diff --git a/MdePkg/Include/Library/SynchronizationLib.h b/MdePkg/Include/Library/SynchronizationLib.h
index b3c8e870dd..f975697399 100644
--- a/MdePkg/Include/Library/SynchronizationLib.h
+++ b/MdePkg/Include/Library/SynchronizationLib.h
@@ -1,7 +1,7 @@
/** @file
Provides synchronization functions.
-Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2012, 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
@@ -26,8 +26,8 @@ typedef volatile UINTN SPIN_LOCK;
optimal spin lock performance.
This function retrieves the spin lock alignment requirements for optimal
- performance on a given CPU architecture. The spin lock alignment must be a
- power of two and is returned by this function. If there are no alignment
+ performance on a given CPU architecture. The spin lock alignment is byte alignment.
+ It must be a power of two and is returned by this function. If there are no alignment
requirements, then 1 must be returned. The spin lock synchronization
functions must function correctly if the spin lock size and alignment values
returned by this function are not used at all. These values are hints to the
diff --git a/MdePkg/Library/BaseSynchronizationLib/Synchronization.c b/MdePkg/Library/BaseSynchronizationLib/Synchronization.c
index 7bf3bfd446..0eea40ba16 100644
--- a/MdePkg/Library/BaseSynchronizationLib/Synchronization.c
+++ b/MdePkg/Library/BaseSynchronizationLib/Synchronization.c
@@ -1,7 +1,7 @@
/** @file
Implementation of synchronization functions.
- Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2006 - 2012, 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
@@ -22,8 +22,8 @@
optimal spin lock performance.
This function retrieves the spin lock alignment requirements for optimal
- performance on a given CPU architecture. The spin lock alignment must be a
- power of two and is returned by this function. If there are no alignment
+ performance on a given CPU architecture. The spin lock alignment is byte alignment.
+ It must be a power of two and is returned by this function. If there are no alignment
requirements, then 1 must be returned. The spin lock synchronization
functions must function correctly if the spin lock size and alignment values
returned by this function are not used at all. These values are hints to the
diff --git a/MdePkg/Library/BaseSynchronizationLib/SynchronizationGcc.c b/MdePkg/Library/BaseSynchronizationLib/SynchronizationGcc.c
index c59a043c87..badf73c1a6 100644
--- a/MdePkg/Library/BaseSynchronizationLib/SynchronizationGcc.c
+++ b/MdePkg/Library/BaseSynchronizationLib/SynchronizationGcc.c
@@ -1,7 +1,7 @@
/** @file
Implementation of synchronization functions.
- Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@@ -28,8 +28,8 @@
optimal spin lock performance.
This function retrieves the spin lock alignment requirements for optimal
- performance on a given CPU architecture. The spin lock alignment must be a
- power of two and is returned by this function. If there are no alignment
+ performance on a given CPU architecture. The spin lock alignment is byte alignment.
+ It must be a power of two and is returned by this function. If there are no alignment
requirements, then 1 must be returned. The spin lock synchronization
functions must function correctly if the spin lock size and alignment values
returned by this function are not used at all. These values are hints to the
diff --git a/MdePkg/Library/BaseSynchronizationLib/SynchronizationMsc.c b/MdePkg/Library/BaseSynchronizationLib/SynchronizationMsc.c
index 895acdc39f..9b20236acf 100644
--- a/MdePkg/Library/BaseSynchronizationLib/SynchronizationMsc.c
+++ b/MdePkg/Library/BaseSynchronizationLib/SynchronizationMsc.c
@@ -1,7 +1,7 @@
/** @file
Implementation of synchronization functions.
- Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2006 - 2012, 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
@@ -30,8 +30,8 @@ void _ReadWriteBarrier (void);
optimal spin lock performance.
This function retrieves the spin lock alignment requirements for optimal
- performance on a given CPU architecture. The spin lock alignment must be a
- power of two and is returned by this function. If there are no alignment
+ performance on a given CPU architecture. The spin lock alignment is byte alignment.
+ It must be a power of two and is returned by this function. If there are no alignment
requirements, then 1 must be returned. The spin lock synchronization
functions must function correctly if the spin lock size and alignment values
returned by this function are not used at all. These values are hints to the