Changeset 77662 in vbox for trunk/src/VBox/Devices/EFI/FirmwareNew/MdePkg/Include/Library/SynchronizationLib.h

Timestamp:

Mar 12, 2019 12:40:12 PM (6 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

129295

Message:

EFI: First step in UDK2018 merge. Does not build yet.

Location:

trunk/src/VBox/Devices/EFI/FirmwareNew

Files:

• . (modified) (1 prop)
• MdePkg/Include/Library/SynchronizationLib.h (modified) (6 diffs)

trunk/src/VBox/Devices/EFI/FirmwareNew/MdePkg/Include/Library/SynchronizationLib.h

@@ -2 +2 @@
   Provides synchronization functions.
 
-Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2016, 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
@@ -158 +158 @@
 EFIAPI
 InterlockedIncrement (
-  IN      UINT32                    *Value
+  IN      volatile UINT32           *Value
   );
 
@@ -180 +180 @@
 EFIAPI
 InterlockedDecrement (
-  IN      UINT32                    *Value
-  );
-
+  IN      volatile UINT32           *Value
+  );
+
+
+/**
+  Performs an atomic compare exchange operation on a 16-bit unsigned integer.
+
+  Performs an atomic compare exchange operation on the 16-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.
+
+  If Value is NULL, then ASSERT().
+
+  @param  Value         A pointer to the 16-bit value for the compare exchange
+                        operation.
+  @param  CompareValue  16-bit value used in compare operation.
+  @param  ExchangeValue 16-bit value used in exchange operation.
+
+  @return The original *Value before exchange.
+**/
+UINT16
+EFIAPI
+InterlockedCompareExchange16 (
+  IN OUT  volatile UINT16           *Value,
+  IN      UINT16                    CompareValue,
+  IN      UINT16                    ExchangeValue
+  );
 
 /**
@@ -206 +232 @@
 EFIAPI
 InterlockedCompareExchange32 (
-  IN OUT  UINT32                    *Value,
+  IN OUT  volatile UINT32           *Value,
   IN      UINT32                    CompareValue,
   IN      UINT32                    ExchangeValue
@@ -233 +259 @@
 EFIAPI
 InterlockedCompareExchange64 (
-  IN OUT  UINT64                    *Value,
+  IN OUT  volatile UINT64           *Value,
   IN      UINT64                    CompareValue,
   IN      UINT64                    ExchangeValue
@@ -260 +286 @@
 EFIAPI
 InterlockedCompareExchangePointer (
-  IN OUT  VOID                      **Value,
+  IN OUT  VOID                      * volatile *Value,
   IN      VOID                      *CompareValue,
   IN      VOID                      *ExchangeValue