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-rw-r--r--MdePkg/Library/BaseSynchronizationLib/X64/GccInline.c192
-rw-r--r--MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange32.S37
-rw-r--r--MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange64.S38
-rw-r--r--MdePkg/Library/BaseSynchronizationLib/X64/InterlockedDecrement.S36
-rw-r--r--MdePkg/Library/BaseSynchronizationLib/X64/InterlockedIncrement.S36
5 files changed, 192 insertions, 147 deletions
diff --git a/MdePkg/Library/BaseSynchronizationLib/X64/GccInline.c b/MdePkg/Library/BaseSynchronizationLib/X64/GccInline.c
new file mode 100644
index 0000000000..f2f72f80a4
--- /dev/null
+++ b/MdePkg/Library/BaseSynchronizationLib/X64/GccInline.c
@@ -0,0 +1,192 @@
+/** @file
+ GCC inline implementation of BaseSynchronizationLib processor specific functions.
+
+ Copyright (c) 2006 - 2009, Intel Corporation<BR>
+ Portions copyright (c) 2008-2009 Apple Inc. All rights reserved.<BR>
+ All rights reserved. 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
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+
+
+
+/**
+ 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 (
+ IN volatile UINT32 *Value
+ )
+{
+ UINT32 Result;
+
+ __asm__ __volatile__ (
+ "lock \n\t"
+ "incl %2 \n\t"
+ "mov %2, %%eax "
+ : "=a" (Result), // %0
+ "=m" (*Value) // %1
+ : "m" (*Value) // %2
+ : "memory",
+ "cc"
+ );
+
+ return Result;
+
+}
+
+
+/**
+ 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 decremented 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 decremented value.
+
+**/
+UINT32
+EFIAPI
+InternalSyncDecrement (
+ IN volatile UINT32 *Value
+ )
+{
+ UINT32 Result;
+
+ __asm__ __volatile__ (
+ "lock \n\t"
+ "decl %2 \n\t"
+ "mov %2, %%eax "
+ : "=a" (Result), // %0
+ "=m" (*Value) // %1
+ : "m" (*Value) // %2
+ : "memory",
+ "cc"
+ );
+
+ return Result;
+}
+
+
+/**
+ 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 (
+ IN OUT volatile UINT32 *Value,
+ IN UINT32 CompareValue,
+ IN UINT32 ExchangeValue
+ )
+{
+// GCC 4.1 and forward supports atomic builtins
+#if ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 1)))
+
+ return __sync_val_compare_and_swap (Value, CompareValue, ExchangeValue);
+
+#else
+
+ __asm__ __volatile__ (
+ "lock \n\t"
+ "cmpxchgl %3, %1 "
+ : "=a" (CompareValue), // %0
+ "=m" (*Value) // %1
+ : "a" (CompareValue), // %2
+ "r" (ExchangeValue), // %3
+ "m" (*Value)
+ : "memory",
+ "cc"
+ );
+
+ return CompareValue;
+
+#endif
+}
+
+
+/**
+ Performs an atomic compare exchange operation on a 64-bit unsigned integer.
+
+ Performs an atomic compare exchange operation on the 64-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 64-bit value for the compare exchange
+ operation.
+ @param CompareValue 64-bit value used in compare operation.
+ @param ExchangeValue 64-bit value used in exchange operation.
+
+ @return The original *Value before exchange.
+
+**/
+UINT64
+EFIAPI
+InternalSyncCompareExchange64 (
+ IN OUT volatile UINT64 *Value,
+ IN UINT64 CompareValue,
+ IN UINT64 ExchangeValue
+ )
+{
+// GCC 4.1 and forward supports atomic builtins
+#if ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 1)))
+
+ return __sync_val_compare_and_swap (Value, CompareValue, ExchangeValue);
+
+#else
+
+ __asm__ __volatile__ (
+ "lock \n\t"
+ "cmpxchgq %3, %1 "
+ : "=a" (CompareValue), // %0
+ "=m" (*Value) // %1
+ : "a" (CompareValue), // %2
+ "r" (ExchangeValue), // %3
+ "m" (*Value)
+ : "memory",
+ "cc"
+ );
+
+ return CompareValue;
+
+#endif
+}
+
+
diff --git a/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange32.S b/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange32.S
deleted file mode 100644
index 980c473219..0000000000
--- a/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange32.S
+++ /dev/null
@@ -1,37 +0,0 @@
-#------------------------------------------------------------------------------
-#
-# Copyright (c) 2006 - 2009, 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
-# http://opensource.org/licenses/bsd-license.php
-#
-# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-#
-# Module Name:
-#
-# InterlockedCompareExchange32.S
-#
-# Abstract:
-#
-# InterlockedCompareExchange32 function
-#
-# Notes:
-#
-#------------------------------------------------------------------------------
-
-#------------------------------------------------------------------------------
-# UINT32
-# EFIAPI
-# InterlockedCompareExchange32 (
-# IN UINT32 *Value,
-# IN UINT32 CompareValue,
-# IN UINT32 ExchangeValue
-# );
-#------------------------------------------------------------------------------
-ASM_GLOBAL ASM_PFX(InternalSyncCompareExchange32)
-ASM_PFX(InternalSyncCompareExchange32):
- mov %edx, %eax
- lock/cmpxchg %r8d, (%rcx)
- ret
diff --git a/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange64.S b/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange64.S
deleted file mode 100644
index 00362f2552..0000000000
--- a/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange64.S
+++ /dev/null
@@ -1,38 +0,0 @@
-#------------------------------------------------------------------------------
-#
-# Copyright (c) 2006 - 2009, 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
-# http://opensource.org/licenses/bsd-license.php
-#
-# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-#
-# Module Name:
-#
-# InterlockedCompareExchange64.S
-#
-# Abstract:
-#
-# InterlockedCompareExchange64 function
-#
-# Notes:
-#
-#------------------------------------------------------------------------------
-
-
-#------------------------------------------------------------------------------
-# UINT64
-# EFIAPI
-# InterlockedCompareExchange64 (
-# IN UINT64 *Value,
-# IN UINT64 CompareValue,
-# IN UINT64 ExchangeValue
-# );
-#------------------------------------------------------------------------------
-ASM_GLOBAL ASM_PFX(InternalSyncCompareExchange64)
-ASM_PFX(InternalSyncCompareExchange64):
- mov %rdx, %rax
- lock/cmpxchg %r8,(%rcx)
- ret
diff --git a/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedDecrement.S b/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedDecrement.S
deleted file mode 100644
index 72ba5a7f44..0000000000
--- a/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedDecrement.S
+++ /dev/null
@@ -1,36 +0,0 @@
-#------------------------------------------------------------------------------
-#
-# Copyright (c) 2006 - 2009, 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
-# http://opensource.org/licenses/bsd-license.php
-#
-# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-#
-# Module Name:
-#
-# InterlockedDecrement.S
-#
-# Abstract:
-#
-# InterlockedDecrement function
-#
-# Notes:
-#
-#------------------------------------------------------------------------------
-
-
-#------------------------------------------------------------------------------
-# UINT32
-# EFIAPI
-# InterlockedDecrement (
-# IN UINT32 *Value
-# );
-#------------------------------------------------------------------------------
-ASM_GLOBAL ASM_PFX(InternalSyncDecrement)
-ASM_PFX(InternalSyncDecrement):
- lock/decl (%rcx)
- mov (%rcx), %eax
- ret
diff --git a/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedIncrement.S b/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedIncrement.S
deleted file mode 100644
index ceb92a2c77..0000000000
--- a/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedIncrement.S
+++ /dev/null
@@ -1,36 +0,0 @@
-#------------------------------------------------------------------------------
-#
-# Copyright (c) 2006 - 2009, 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
-# http://opensource.org/licenses/bsd-license.php
-#
-# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-#
-# Module Name:
-#
-# InterlockedIncrement.S
-#
-# Abstract:
-#
-# InterlockedIncrement function
-#
-# Notes:
-#
-#------------------------------------------------------------------------------
-
-
-#------------------------------------------------------------------------------
-# UINT32
-# EFIAPI
-# InterlockedIncrement (
-# IN UINT32 *Value
-# );
-#------------------------------------------------------------------------------
-ASM_GLOBAL ASM_PFX(InternalSyncIncrement)
-ASM_PFX(InternalSyncIncrement):
- lock/incl (%rcx)
- mov (%rcx), %eax
- ret
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-07 15:15:46 +0000