diff options
Diffstat (limited to 'roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64')
9 files changed, 516 insertions, 0 deletions
diff --git a/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/GccInline.c b/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/GccInline.c new file mode 100644 index 000000000..be19219c2 --- /dev/null +++ b/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/GccInline.c @@ -0,0 +1,200 @@ +/** @file
+ GCC inline implementation of BaseSynchronizationLib processor specific functions.
+
+ Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+ Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+
+
+/**
+ 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.
+
+ @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__ (
+ "movl $1, %%eax \n\t"
+ "lock \n\t"
+ "xadd %%eax, %1 \n\t"
+ "inc %%eax \n\t"
+ : "=&a" (Result), // %0
+ "+m" (*Value) // %1
+ : // no inputs that aren't also outputs
+ : "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.
+
+ @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__ (
+ "movl $-1, %%eax \n\t"
+ "lock \n\t"
+ "xadd %%eax, %1 \n\t"
+ "dec %%eax \n\t"
+ : "=&a" (Result), // %0
+ "+m" (*Value) // %1
+ : // no inputs that aren't also outputs
+ : "memory",
+ "cc"
+ );
+
+ return Result;
+}
+
+
+/**
+ 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.
+
+
+ @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
+InternalSyncCompareExchange16 (
+ IN OUT volatile UINT16 *Value,
+ IN UINT16 CompareValue,
+ IN UINT16 ExchangeValue
+ )
+{
+ __asm__ __volatile__ (
+ "lock \n\t"
+ "cmpxchgw %2, %1 \n\t"
+ : "+a" (CompareValue), // %0
+ "+m" (*Value) // %1
+ : "r" (ExchangeValue) // %2
+ : "memory",
+ "cc"
+ );
+
+ return CompareValue;
+}
+
+
+/**
+ 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
+ )
+{
+ __asm__ __volatile__ (
+ "lock \n\t"
+ "cmpxchgl %2, %1 \n\t"
+ : "+a" (CompareValue), // %0
+ "+m" (*Value) // %1
+ : "r" (ExchangeValue) // %2
+ : "memory",
+ "cc"
+ );
+
+ return CompareValue;
+}
+
+
+/**
+ 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
+ )
+{
+ __asm__ __volatile__ (
+ "lock \n\t"
+ "cmpxchgq %2, %1 \n\t"
+ : "+a" (CompareValue), // %0
+ "+m" (*Value) // %1
+ : "r" (ExchangeValue) // %2
+ : "memory",
+ "cc"
+ );
+
+ return CompareValue;
+}
diff --git a/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange16.c b/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange16.c new file mode 100644 index 000000000..4bbf190d5 --- /dev/null +++ b/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange16.c @@ -0,0 +1,48 @@ +/** @file
+ InterlockedCompareExchange16 function
+
+ Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2015, Linaro Ltd. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+/**
+ Microsoft Visual Studio 7.1 Function Prototypes for I/O Intrinsics.
+**/
+
+__int16 _InterlockedCompareExchange16(
+ __int16 volatile * Destination,
+ __int16 Exchange,
+ __int16 Comperand
+);
+
+#pragma intrinsic(_InterlockedCompareExchange16)
+
+/**
+ 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.
+
+ @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
+InternalSyncCompareExchange16 (
+ IN volatile UINT16 *Value,
+ IN UINT16 CompareValue,
+ IN UINT16 ExchangeValue
+ )
+{
+ return _InterlockedCompareExchange16 (Value, ExchangeValue, CompareValue);
+}
+
diff --git a/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange16.nasm b/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange16.nasm new file mode 100644 index 000000000..81a243231 --- /dev/null +++ b/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange16.nasm @@ -0,0 +1,36 @@ +;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
+; Copyright (c) 2015, Linaro Ltd. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;
+; Module Name:
+;
+; InterlockedCompareExchange16.Asm
+;
+; Abstract:
+;
+; InterlockedCompareExchange16 function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+ DEFAULT REL
+ SECTION .text
+
+;------------------------------------------------------------------------------
+; UINT16
+; EFIAPI
+; InternalSyncCompareExchange16 (
+; IN volatile UINT16 *Value,
+; IN UINT16 CompareValue,
+; IN UINT16 ExchangeValue
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(InternalSyncCompareExchange16)
+ASM_PFX(InternalSyncCompareExchange16):
+ mov ax, dx
+ lock cmpxchg [rcx], r8w
+ ret
+
diff --git a/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange32.c b/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange32.c new file mode 100644 index 000000000..c693a0640 --- /dev/null +++ b/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange32.c @@ -0,0 +1,48 @@ +/** @file
+ InterlockedCompareExchange32 function
+
+ Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+/**
+ Microsoft Visual Studio 7.1 Function Prototypes for I/O Intrinsics.
+**/
+
+long _InterlockedCompareExchange(
+ long volatile * Destination,
+ long Exchange,
+ long Comperand
+);
+
+#pragma intrinsic(_InterlockedCompareExchange)
+
+/**
+ 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 volatile UINT32 *Value,
+ IN UINT32 CompareValue,
+ IN UINT32 ExchangeValue
+ )
+{
+ return _InterlockedCompareExchange (Value, ExchangeValue, CompareValue);
+}
+
diff --git a/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange32.nasm b/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange32.nasm new file mode 100644 index 000000000..f914f6264 --- /dev/null +++ b/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange32.nasm @@ -0,0 +1,35 @@ +;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;
+; Module Name:
+;
+; InterlockedCompareExchange32.Asm
+;
+; Abstract:
+;
+; InterlockedCompareExchange32 function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+ DEFAULT REL
+ SECTION .text
+
+;------------------------------------------------------------------------------
+; UINT32
+; EFIAPI
+; InternalSyncCompareExchange32 (
+; IN volatile UINT32 *Value,
+; IN UINT32 CompareValue,
+; IN UINT32 ExchangeValue
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(InternalSyncCompareExchange32)
+ASM_PFX(InternalSyncCompareExchange32):
+ mov eax, edx
+ lock cmpxchg [rcx], r8d
+ ret
+
diff --git a/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange64.c b/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange64.c new file mode 100644 index 000000000..4b9167c0d --- /dev/null +++ b/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange64.c @@ -0,0 +1,47 @@ +/** @file
+ InterlockedCompareExchange64 function
+
+ Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+/**
+ Microsoft Visual Studio 7.1 Function Prototypes for I/O Intrinsics.
+**/
+
+__int64 _InterlockedCompareExchange64(
+ __int64 volatile * Destination,
+ __int64 Exchange,
+ __int64 Comperand
+);
+
+#pragma intrinsic(_InterlockedCompareExchange64)
+
+/**
+ 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 volatile UINT64 *Value,
+ IN UINT64 CompareValue,
+ IN UINT64 ExchangeValue
+ )
+{
+ return _InterlockedCompareExchange64 (Value, ExchangeValue, CompareValue);
+}
+
diff --git a/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange64.nasm b/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange64.nasm new file mode 100644 index 000000000..4bee1e485 --- /dev/null +++ b/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedCompareExchange64.nasm @@ -0,0 +1,35 @@ +;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;
+; Module Name:
+;
+; InterlockedCompareExchange64.Asm
+;
+; Abstract:
+;
+; InterlockedCompareExchange64 function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+ DEFAULT REL
+ SECTION .text
+
+;------------------------------------------------------------------------------
+; UINT64
+; EFIAPI
+; InternalSyncCompareExchange64 (
+; IN volatile UINT64 *Value,
+; IN UINT64 CompareValue,
+; IN UINT64 ExchangeValue
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(InternalSyncCompareExchange64)
+ASM_PFX(InternalSyncCompareExchange64):
+ mov rax, rdx
+ lock cmpxchg [rcx], r8
+ ret
+
diff --git a/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedDecrement.nasm b/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedDecrement.nasm new file mode 100644 index 000000000..945043da9 --- /dev/null +++ b/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedDecrement.nasm @@ -0,0 +1,33 @@ +;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;
+; Module Name:
+;
+; InterlockedDecrement.Asm
+;
+; Abstract:
+;
+; InterlockedDecrement function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+ DEFAULT REL
+ SECTION .text
+
+;------------------------------------------------------------------------------
+; UINT32
+; EFIAPI
+; InternalSyncDecrement (
+; IN volatile UINT32 *Value
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(InternalSyncDecrement)
+ASM_PFX(InternalSyncDecrement):
+ mov eax, 0FFFFFFFFh
+ lock xadd dword [rcx], eax
+ dec eax
+ ret
diff --git a/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedIncrement.nasm b/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedIncrement.nasm new file mode 100644 index 000000000..3b650a169 --- /dev/null +++ b/roms/edk2/MdePkg/Library/BaseSynchronizationLib/X64/InterlockedIncrement.nasm @@ -0,0 +1,34 @@ +;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;
+; Module Name:
+;
+; InterlockedIncrement.Asm
+;
+; Abstract:
+;
+; InterlockedIncrement function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+ DEFAULT REL
+ SECTION .text
+
+;------------------------------------------------------------------------------
+; UINT32
+; EFIAPI
+; InternalSyncIncrement (
+; IN volatile UINT32 *Value
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(InternalSyncIncrement)
+ASM_PFX(InternalSyncIncrement):
+ mov eax, 1
+ lock xadd dword [rcx], eax
+ inc eax
+ ret
+
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