MdePkg: Move API and implementation from UefiCpuLib to CpuLib

There are two libraries: MdePkg/CpuLib and UefiCpuPkg/UefiCpuLib. This
patch merges UefiCpuPkg/UefiCpuLib to MdePkg/CpuLib.

Change-Id: Ic26f4c2614ed6bd9840f817d50e47ac1de4bd013
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Signed-off-by: Yu Pu <yu.pu@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com>

8 files changed, 74 insertions, 57 deletions

diff --git a/MdePkg/Include/Library/CpuLib.h b/MdePkg/Include/Library/CpuLib.h
index 25f6d94..3f29937 100644
--- a/MdePkg/Include/Library/CpuLib.h
+++ b/MdePkg/Include/Library/CpuLib.h
@@ -41,4 +41,52 @@ CpuFlushTlb (
   VOID

   );

 

+#if defined (MDE_CPU_IA32) || defined (MDE_CPU_X64)

+

+/**

+  Initializes floating point units for requirement of UEFI specification.

+  This function initializes floating-point control word to 0x027F (all exceptions

+  masked,double-precision, round-to-nearest) and multimedia-extensions control word

+  (if supported) to 0x1F80 (all exceptions masked, round-to-nearest, flush to zero

+  for masked underflow).

+**/

+VOID

+EFIAPI

+InitializeFloatingPointUnits (

+  VOID

+  );

+

+/**

+  Determine if the standard CPU signature is "AuthenticAMD".

+  @retval TRUE  The CPU signature matches.

+  @retval FALSE The CPU signature does not match.

+**/

+BOOLEAN

+EFIAPI

+StandardSignatureIsAuthenticAMD (

+  VOID

+  );

+

+/**

+  Return the 32bit CPU family and model value.

+  @return CPUID[01h].EAX with Processor Type and Stepping ID cleared.

+**/

+UINT32

+EFIAPI

+GetCpuFamilyModel (

+  VOID

+  );

+

+/**

+  Return the CPU stepping ID.

+  @return CPU stepping ID value in CPUID[01h].EAX.

+**/

+UINT8

+EFIAPI

+GetCpuSteppingId (

+  VOID

+  );

+

+#endif

+

 #endif

diff --git a/MdePkg/Library/BaseCpuLib/BaseCpuLib.inf b/MdePkg/Library/BaseCpuLib/BaseCpuLib.inf
index 5b18343..9a162af 100644
--- a/MdePkg/Library/BaseCpuLib/BaseCpuLib.inf
+++ b/MdePkg/Library/BaseCpuLib/BaseCpuLib.inf
@@ -29,16 +29,22 @@
 #  VALID_ARCHITECTURES           = IA32 X64 EBC ARM AARCH64 RISCV64 LOONGARCH64

 #

 

+[Sources.IA32, Sources.X64]

+  X86BaseCpuLib.c

+

 [Sources.IA32]

   Ia32/CpuSleep.c | MSFT

   Ia32/CpuSleep.nasm| INTEL

   Ia32/CpuSleepGcc.c | GCC

   X86CpuFlushTlb.c

 

+  Ia32/InitializeFpu.nasm

+

 [Sources.X64]

   X86CpuFlushTlb.c

   X64/CpuSleep.nasm

 

+  X64/InitializeFpu.nasm

 

 [Sources.EBC]

   Ebc/CpuSleepFlushTlb.c

diff --git a/UefiCpuPkg/Library/BaseUefiCpuLib/Ia32/InitializeFpu.nasm b/MdePkg/Library/BaseCpuLib/Ia32/InitializeFpu.nasm
index 5e27cc3..5e27cc3 100644
--- a/UefiCpuPkg/Library/BaseUefiCpuLib/Ia32/InitializeFpu.nasm
+++ b/MdePkg/Library/BaseCpuLib/Ia32/InitializeFpu.nasm
diff --git a/UefiCpuPkg/Library/BaseUefiCpuLib/X64/InitializeFpu.nasm b/MdePkg/Library/BaseCpuLib/X64/InitializeFpu.nasm
index 8485b47..8485b47 100644
--- a/UefiCpuPkg/Library/BaseUefiCpuLib/X64/InitializeFpu.nasm
+++ b/MdePkg/Library/BaseCpuLib/X64/InitializeFpu.nasm
diff --git a/UefiCpuPkg/Library/BaseUefiCpuLib/BaseUefiCpuLib.c b/MdePkg/Library/BaseCpuLib/X86BaseCpuLib.c
index 5d925bc..1cad32a 100644
--- a/UefiCpuPkg/Library/BaseUefiCpuLib/BaseUefiCpuLib.c
+++ b/MdePkg/Library/BaseCpuLib/X86BaseCpuLib.c
@@ -13,7 +13,7 @@
 #include <Register/Amd/Cpuid.h>

 

 #include <Library/BaseLib.h>

-#include <Library/UefiCpuLib.h>

+#include <Library/CpuLib.h>

 

 /**

   Determine if the standard CPU signature is "AuthenticAMD".

diff --git a/UefiCpuPkg/Include/Library/UefiCpuLib.h b/UefiCpuPkg/Include/Library/UefiCpuLib.h
index 0ff4a35..ab6982d 100644
--- a/UefiCpuPkg/Include/Library/UefiCpuLib.h
+++ b/UefiCpuPkg/Include/Library/UefiCpuLib.h
@@ -13,53 +13,4 @@
 #ifndef __UEFI_CPU_LIB_H__

 #define __UEFI_CPU_LIB_H__

 

-/**

-  Initializes floating point units for requirement of UEFI specification.

-

-  This function initializes floating-point control word to 0x027F (all exceptions

-  masked,double-precision, round-to-nearest) and multimedia-extensions control word

-  (if supported) to 0x1F80 (all exceptions masked, round-to-nearest, flush to zero

-  for masked underflow).

-

-**/

-VOID

-EFIAPI

-InitializeFloatingPointUnits (

-  VOID

-  );

-

-/**

-  Determine if the standard CPU signature is "AuthenticAMD".

-

-  @retval TRUE  The CPU signature matches.

-  @retval FALSE The CPU signature does not match.

-

-**/

-BOOLEAN

-EFIAPI

-StandardSignatureIsAuthenticAMD (

-  VOID

-  );

-

-/**

-  Return the 32bit CPU family and model value.

-

-  @return CPUID[01h].EAX with Processor Type and Stepping ID cleared.

-**/

-UINT32

-EFIAPI

-GetCpuFamilyModel (

-  VOID

-  );

-

-/**

-  Return the CPU stepping ID.

-  @return CPU stepping ID value in CPUID[01h].EAX.

-**/

-UINT8

-EFIAPI

-GetCpuSteppingId (

-  VOID

-  );

-

 #endif

diff --git a/UefiCpuPkg/Library/BaseUefiCpuLib/BaseUefiCpuLib.inf b/UefiCpuPkg/Library/BaseUefiCpuLib/BaseUefiCpuLib.inf
index 34d3a7b..9f8b62d 100644
--- a/UefiCpuPkg/Library/BaseUefiCpuLib/BaseUefiCpuLib.inf
+++ b/UefiCpuPkg/Library/BaseUefiCpuLib/BaseUefiCpuLib.inf
@@ -24,14 +24,8 @@
 #  VALID_ARCHITECTURES           = IA32 X64

 #

 

-[Sources.IA32]

-  Ia32/InitializeFpu.nasm

-

-[Sources.X64]

-  X64/InitializeFpu.nasm

-

 [Sources]

-  BaseUefiCpuLib.c

+  BaseUefiCpuLibNull.c

 

 [Packages]

   MdePkg/MdePkg.dec

diff --git a/UefiCpuPkg/Library/BaseUefiCpuLib/BaseUefiCpuLibNull.c b/UefiCpuPkg/Library/BaseUefiCpuLib/BaseUefiCpuLibNull.c
new file mode 100644
index 0000000..e29d2e8
--- /dev/null
+++ b/UefiCpuPkg/Library/BaseUefiCpuLib/BaseUefiCpuLibNull.c
@@ -0,0 +1,18 @@
+/** @file

+This library contains a dummy function to pass build.

+

+Copyright (c) 2022, Intel Corporation. All rights reserved.

+

+SPDX-License-Identifier: BSD-2-Clause-Patent

+**/

+#include <Base.h>

+

+/**

+  Dummy function.

+**/

+VOID

+Dummy (

+  VOID

+  )

+{

+}