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| author | Yu Pu <yu.pu@intel.com> | 2022-03-29 11:28:32 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2023-03-10 08:23:56 +0000 |
| commit | b294633c68d4f4ed8c784501e8da321127121877 (patch) | |
| tree | 0856439c1340340557b710138aa7e99532cfe9a4 /MdePkg/Include | |
| parent | bf0c14a562f2f60301031c4adfa8c47107b3ddfb (diff) | |
| download | edk2-b294633c68d4f4ed8c784501e8da321127121877.tar.gz edk2-b294633c68d4f4ed8c784501e8da321127121877.tar.bz2 edk2-b294633c68d4f4ed8c784501e8da321127121877.zip | |
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>
Diffstat (limited to 'MdePkg/Include')
| -rw-r--r-- | MdePkg/Include/Library/CpuLib.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/MdePkg/Include/Library/CpuLib.h b/MdePkg/Include/Library/CpuLib.h index 25f6d9478c..3f29937dc7 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
|