UefiCpuPkg/CpuMpPei: Remove unused files and codes

[mirror_edk2.git] / UefiCpuPkg / CpuMpPei / PeiMpServices.c

diff --git a/UefiCpuPkg/CpuMpPei/PeiMpServices.c b/UefiCpuPkg/CpuMpPei/PeiMpServices.c
index 44e8f211c7498a5e4171cd54b8c810bb22ba1bde..c9b2ad466bac78b6973cb77b26b815d4b520980d 100644 (file)
--- a/UefiCpuPkg/CpuMpPei/PeiMpServices.c
+++ b/UefiCpuPkg/CpuMpPei/PeiMpServices.c
@@ -34,137 +34,6 @@ EFI_PEI_PPI_DESCRIPTOR           mPeiCpuMpPpiDesc = {
 };\r
 \r
 \r
-/**\r
-  Get CPU Package/Core/Thread location information.\r
-\r
-  @param InitialApicId     CPU APIC ID\r
-  @param Location          Pointer to CPU location information\r
-**/\r
-STATIC\r
-VOID\r
-ExtractProcessorLocation (\r
-  IN  UINT32                     InitialApicId,\r
-  OUT EFI_CPU_PHYSICAL_LOCATION  *Location\r
-  )\r
-{\r
-  BOOLEAN  TopologyLeafSupported;\r
-  UINTN    ThreadBits;\r
-  UINTN    CoreBits;\r
-  UINT32   RegEax;\r
-  UINT32   RegEbx;\r
-  UINT32   RegEcx;\r
-  UINT32   RegEdx;\r
-  UINT32   MaxCpuIdIndex;\r
-  UINT32   SubIndex;\r
-  UINTN    LevelType;\r
-  UINT32   MaxLogicProcessorsPerPackage;\r
-  UINT32   MaxCoresPerPackage;\r
-\r
-  //\r
-  // Check if the processor is capable of supporting more than one logical processor.\r
-  //\r
-  AsmCpuid (CPUID_VERSION_INFO, NULL, NULL, NULL, &RegEdx);\r
-  if ((RegEdx & BIT28) == 0) {\r
-    Location->Thread  = 0;\r
-    Location->Core    = 0;\r
-    Location->Package = 0;\r
-    return;\r
-  }\r
-\r
-  ThreadBits = 0;\r
-  CoreBits = 0;\r
-\r
-  //\r
-  // Assume three-level mapping of APIC ID: Package:Core:SMT.\r
-  //\r
-\r
-  TopologyLeafSupported = FALSE;\r
-  //\r
-  // Get the max index of basic CPUID\r
-  //\r
-  AsmCpuid (CPUID_SIGNATURE, &MaxCpuIdIndex, NULL, NULL, NULL);\r
-\r
-  //\r
-  // If the extended topology enumeration leaf is available, it\r
-  // is the preferred mechanism for enumerating topology.\r
-  //\r
-  if (MaxCpuIdIndex >= CPUID_EXTENDED_TOPOLOGY) {\r
-    AsmCpuidEx (CPUID_EXTENDED_TOPOLOGY, 0, &RegEax, &RegEbx, &RegEcx, NULL);\r
-    //\r
-    // If CPUID.(EAX=0BH, ECX=0H):EBX returns zero and maximum input value for\r
-    // basic CPUID information is greater than 0BH, then CPUID.0BH leaf is not\r
-    // supported on that processor.\r
-    //\r
-    if (RegEbx != 0) {\r
-      TopologyLeafSupported = TRUE;\r
-\r
-      //\r
-      // Sub-leaf index 0 (ECX= 0 as input) provides enumeration parameters to extract\r
-      // the SMT sub-field of x2APIC ID.\r
-      //\r
-      LevelType = (RegEcx >> 8) & 0xff;\r
-      ASSERT (LevelType == CPUID_EXTENDED_TOPOLOGY_LEVEL_TYPE_SMT);\r
-      ThreadBits = RegEax & 0x1f;\r
-\r
-      //\r
-      // Software must not assume any "level type" encoding\r
-      // value to be related to any sub-leaf index, except sub-leaf 0.\r
-      //\r
-      SubIndex = 1;\r
-      do {\r
-        AsmCpuidEx (CPUID_EXTENDED_TOPOLOGY, SubIndex, &RegEax, NULL, &RegEcx, NULL);\r
-        LevelType = (RegEcx >> 8) & 0xff;\r
-        if (LevelType == CPUID_EXTENDED_TOPOLOGY_LEVEL_TYPE_CORE) {\r
-          CoreBits = (RegEax & 0x1f) - ThreadBits;\r
-          break;\r
-        }\r
-        SubIndex++;\r
-      } while (LevelType != CPUID_EXTENDED_TOPOLOGY_LEVEL_TYPE_INVALID);\r
-    }\r
-  }\r
-\r
-  if (!TopologyLeafSupported) {\r
-    AsmCpuid (CPUID_VERSION_INFO, NULL, &RegEbx, NULL, NULL);\r
-    MaxLogicProcessorsPerPackage = (RegEbx >> 16) & 0xff;\r
-    if (MaxCpuIdIndex >= CPUID_CACHE_PARAMS) {\r
-      AsmCpuidEx (CPUID_CACHE_PARAMS, 0, &RegEax, NULL, NULL, NULL);\r
-      MaxCoresPerPackage = (RegEax >> 26) + 1;\r
-    } else {\r
-      //\r
-      // Must be a single-core processor.\r
-      //\r
-      MaxCoresPerPackage = 1;\r
-    }\r
-\r
-    ThreadBits = (UINTN) (HighBitSet32 (MaxLogicProcessorsPerPackage / MaxCoresPerPackage - 1) + 1);\r
-    CoreBits = (UINTN) (HighBitSet32 (MaxCoresPerPackage - 1) + 1);\r
-  }\r
-\r
-  Location->Thread  = InitialApicId & ~((-1) << ThreadBits);\r
-  Location->Core    = (InitialApicId >> ThreadBits) & ~((-1) << CoreBits);\r
-  Location->Package = (InitialApicId >> (ThreadBits + CoreBits));\r
-}\r
-\r
-/**\r
-  Worker function for SwitchBSP().\r
-\r
-  Worker function for SwitchBSP(), assigned to the AP which is intended to become BSP.\r
-\r
-  @param Buffer        Pointer to CPU MP Data\r
-**/\r
-STATIC\r
-VOID\r
-EFIAPI\r
-FutureBSPProc (\r
-  IN  VOID                *Buffer\r
-  )\r
-{\r
-  PEI_CPU_MP_DATA         *DataInHob;\r
-\r
-  DataInHob = (PEI_CPU_MP_DATA *) Buffer;\r
-  AsmExchangeRole (&DataInHob->APInfo, &DataInHob->BSPInfo);\r
-}\r
-\r
 /**\r
   This service retrieves the number of logical processor in the platform\r
   and the number of those logical processors that are enabled on this boot.\r