From 1ea5ca46c7eefe66a01cb4db3b72fc0e5a04e2cb Mon Sep 17 00:00:00 2001
From: vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Wed, 19 Jul 2006 17:37:07 +0000
Subject: 1. added functions header for BaseUefiDecompressLi 2. added some
 internal functions header for BaseLib 3. added EFIAPI for some internal
 assembly files declare

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@1050 6f19259b-4bc3-4df7-8a09-765794883524
---
 MdePkg/Library/BaseLib/Ipf/Synchronization.c | 43 ++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

(limited to 'MdePkg/Library/BaseLib/Ipf')

diff --git a/MdePkg/Library/BaseLib/Ipf/Synchronization.c b/MdePkg/Library/BaseLib/Ipf/Synchronization.c
index f09dbd5c00..44593e1778 100644
--- a/MdePkg/Library/BaseLib/Ipf/Synchronization.c
+++ b/MdePkg/Library/BaseLib/Ipf/Synchronization.c
@@ -14,6 +14,23 @@
 
 **/
 
+/**
+  Performs an atomic compare exchange operation on a 32-bit unsigned integer.
+
+  Performs an atomic compare exchange operation on the 32-bit unsigned integer
+  specified by Value.  If Value is equal to CompareValue, then Value is set to 
+  ExchangeValue and CompareValue is returned.  If Value is not equal to CompareValue,
+  then Value is returned.  The compare exchange operation must be performed using 
+  MP safe mechanisms.
+
+  @param  Value         A pointer to the 32-bit value for the compare exchange
+                        operation.
+  @param  CompareValue  32-bit value used in compare operation.
+  @param  ExchangeValue 32-bit value used in exchange operation.
+
+  @return The original *Value before exchange.
+
+**/
 UINT32
 EFIAPI
 InternalSyncCompareExchange32 (
@@ -22,6 +39,19 @@ InternalSyncCompareExchange32 (
   IN      UINT32                    ExchangeValue
   );
 
+/**
+  Performs an atomic increment of an 32-bit unsigned integer.
+
+  Performs an atomic increment of the 32-bit unsigned integer specified by
+  Value and returns the incremented value. The increment operation must be
+  performed using MP safe mechanisms. The state of the return value is not
+  guaranteed to be MP safe.
+
+  @param  Value A pointer to the 32-bit value to increment.
+
+  @return The incremented value.
+
+**/
 UINT32
 EFIAPI
 InternalSyncIncrement (
@@ -40,6 +70,19 @@ InternalSyncIncrement (
   return OriginalValue + 1;
 }
 
+/**
+  Performs an atomic decrement of an 32-bit unsigned integer.
+
+  Performs an atomic decrement of the 32-bit unsigned integer specified by
+  Value and returns the decrement value. The decrement operation must be
+  performed using MP safe mechanisms. The state of the return value is not
+  guaranteed to be MP safe.
+
+  @param  Value A pointer to the 32-bit value to decrement.
+
+  @return The decrement value.
+
+**/
 UINT32
 EFIAPI
 InternalSyncDecrement (
-- 
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