Re: [edk2] [Patch v2 2/2] UefiCpuPkg/PiSmmCpuDxeSmm: Refine code to avoid duplicated code.
Reviewed-by: Ruiyu Ni -Original Message- From: Dong, Eric Sent: Friday, September 29, 2017 8:27 AM To: edk2-devel@lists.01.org Cc: Yao, Jiewen ; Ni, Ruiyu Subject: [Patch v2 2/2] UefiCpuPkg/PiSmmCpuDxeSmm: Refine code to avoid duplicated code. V2: Change function parameter to avoid touch global info in function. Enhance function name, make it more user friendly V1: Refine code to avoid duplicate code to set processor register. Cc: Jiewen Yao Cc: Ruiyu Ni Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Eric Dong --- UefiCpuPkg/PiSmmCpuDxeSmm/CpuS3.c | 84 +++ 1 file changed, 24 insertions(+), 60 deletions(-) diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/CpuS3.c b/UefiCpuPkg/PiSmmCpuDxeSmm/CpuS3.c index ae4b516..ef72b9b 100644 --- a/UefiCpuPkg/PiSmmCpuDxeSmm/CpuS3.c +++ b/UefiCpuPkg/PiSmmCpuDxeSmm/CpuS3.c @@ -208,18 +208,30 @@ Returns: This function programs registers for the calling processor. - @param RegisterTable Pointer to register table of the running processor. + @param RegisterTablesPointer to register table of the running processor. + @param RegisterTableCountRegister table count. **/ VOID SetProcessorRegister ( - IN CPU_REGISTER_TABLE*RegisterTable + IN CPU_REGISTER_TABLE*RegisterTables, + IN UINTN RegisterTableCount ) { CPU_REGISTER_TABLE_ENTRY *RegisterTableEntry; UINTN Index; UINTN Value; SPIN_LOCK *MsrSpinLock; + UINT32InitApicId; + CPU_REGISTER_TABLE*RegisterTable; + + InitApicId = GetInitialApicId (); + for (Index = 0; Index < RegisterTableCount; Index++) { +if (RegisterTables[Index].InitialApicId == InitApicId) { + RegisterTable = &RegisterTables[Index]; + break; +} + } // // Traverse Register Table of this logical processor @@ -347,36 +359,20 @@ SetProcessorRegister ( } } - - /** AP initialization before then after SMBASE relocation in the S3 boot path. **/ VOID -MPRendezvousProcedure ( +InitializeAp ( VOID ) { - CPU_REGISTER_TABLE *RegisterTableList; - UINT32 InitApicId; - UINTN Index; UINTN TopOfStack; UINT8 Stack[128]; LoadMtrrData (mAcpiCpuData.MtrrTable); - // - // Find processor number for this CPU. - // - RegisterTableList = (CPU_REGISTER_TABLE *) (UINTN) mAcpiCpuData.PreSmmInitRegisterTable; - InitApicId = GetInitialApicId (); - for (Index = 0; Index < mAcpiCpuData.NumberOfCpus; Index++) { -if (RegisterTableList[Index].InitialApicId == InitApicId) { - SetProcessorRegister (&RegisterTableList[Index]); - break; -} - } - + SetProcessorRegister ((CPU_REGISTER_TABLE *) (UINTN) + mAcpiCpuData.PreSmmInitRegisterTable, mAcpiCpuData.NumberOfCpus); // // Count down the number with lock mechanism. @@ -393,14 +389,7 @@ MPRendezvousProcedure ( ProgramVirtualWireMode (); DisableLvtInterrupts (); - RegisterTableList = (CPU_REGISTER_TABLE *) (UINTN) mAcpiCpuData.RegisterTable; - InitApicId = GetInitialApicId (); - for (Index = 0; Index < mAcpiCpuData.NumberOfCpus; Index++) { -if (RegisterTableList[Index].InitialApicId == InitApicId) { - SetProcessorRegister (&RegisterTableList[Index]); - break; -} - } + SetProcessorRegister ((CPU_REGISTER_TABLE *) (UINTN) + mAcpiCpuData.RegisterTable, mAcpiCpuData.NumberOfCpus); // // Place AP into the safe code, count down the number with lock mechanism in the safe code. @@ -475,34 +464,20 @@ PrepareApStartupVector ( **/ VOID -EarlyInitializeCpu ( +InitializeCpuBeforeRebase ( VOID ) { - CPU_REGISTER_TABLE *RegisterTableList; - UINT32 InitApicId; - UINTN Index; - LoadMtrrData (mAcpiCpuData.MtrrTable); - // - // Find processor number for this CPU. - // - RegisterTableList = (CPU_REGISTER_TABLE *) (UINTN) mAcpiCpuData.PreSmmInitRegisterTable; - InitApicId = GetInitialApicId (); - for (Index = 0; Index < mAcpiCpuData.NumberOfCpus; Index++) { -if (RegisterTableList[Index].InitialApicId == InitApicId) { - SetProcessorRegister (&RegisterTableList[Index]); - break; -} - } + SetProcessorRegister ((CPU_REGISTER_TABLE *) (UINTN) + mAcpiCpuData.PreSmmInitRegisterTable, mAcpiCpuData.NumberOfCpus); ProgramVirtualWireMode (); PrepareApStartupVector (mAcpiCpuData.StartupVector); mNumberToFinish = mAcpiCpuData.NumberOfCpus - 1; - mExchangeInfo->ApFunction = (VOID *) (UINTN) MPRendezvousProcedure; + mExchangeInfo->ApFunction = (VOID *) (UINTN) InitializeAp; // // Execute code for before SmmBaseReloc. Note: This flag is maintained across S3 boots. @@ -527,22 +502,11 @@ EarlyInitializeCpu ( **/ VOID -InitializeCpu ( +InitializeCpuAfterRebase ( VOID ) { - CPU_REGISTER_TABL
[edk2] [Patch v2 2/2] UefiCpuPkg/PiSmmCpuDxeSmm: Refine code to avoid duplicated code.
V2: Change function parameter to avoid touch global info in function. Enhance function name, make it more user friendly V1: Refine code to avoid duplicate code to set processor register. Cc: Jiewen Yao Cc: Ruiyu Ni Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Eric Dong --- UefiCpuPkg/PiSmmCpuDxeSmm/CpuS3.c | 84 +++ 1 file changed, 24 insertions(+), 60 deletions(-) diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/CpuS3.c b/UefiCpuPkg/PiSmmCpuDxeSmm/CpuS3.c index ae4b516..ef72b9b 100644 --- a/UefiCpuPkg/PiSmmCpuDxeSmm/CpuS3.c +++ b/UefiCpuPkg/PiSmmCpuDxeSmm/CpuS3.c @@ -208,18 +208,30 @@ Returns: This function programs registers for the calling processor. - @param RegisterTable Pointer to register table of the running processor. + @param RegisterTablesPointer to register table of the running processor. + @param RegisterTableCountRegister table count. **/ VOID SetProcessorRegister ( - IN CPU_REGISTER_TABLE*RegisterTable + IN CPU_REGISTER_TABLE*RegisterTables, + IN UINTN RegisterTableCount ) { CPU_REGISTER_TABLE_ENTRY *RegisterTableEntry; UINTN Index; UINTN Value; SPIN_LOCK *MsrSpinLock; + UINT32InitApicId; + CPU_REGISTER_TABLE*RegisterTable; + + InitApicId = GetInitialApicId (); + for (Index = 0; Index < RegisterTableCount; Index++) { +if (RegisterTables[Index].InitialApicId == InitApicId) { + RegisterTable = &RegisterTables[Index]; + break; +} + } // // Traverse Register Table of this logical processor @@ -347,36 +359,20 @@ SetProcessorRegister ( } } - - /** AP initialization before then after SMBASE relocation in the S3 boot path. **/ VOID -MPRendezvousProcedure ( +InitializeAp ( VOID ) { - CPU_REGISTER_TABLE *RegisterTableList; - UINT32 InitApicId; - UINTN Index; UINTN TopOfStack; UINT8 Stack[128]; LoadMtrrData (mAcpiCpuData.MtrrTable); - // - // Find processor number for this CPU. - // - RegisterTableList = (CPU_REGISTER_TABLE *) (UINTN) mAcpiCpuData.PreSmmInitRegisterTable; - InitApicId = GetInitialApicId (); - for (Index = 0; Index < mAcpiCpuData.NumberOfCpus; Index++) { -if (RegisterTableList[Index].InitialApicId == InitApicId) { - SetProcessorRegister (&RegisterTableList[Index]); - break; -} - } - + SetProcessorRegister ((CPU_REGISTER_TABLE *) (UINTN) mAcpiCpuData.PreSmmInitRegisterTable, mAcpiCpuData.NumberOfCpus); // // Count down the number with lock mechanism. @@ -393,14 +389,7 @@ MPRendezvousProcedure ( ProgramVirtualWireMode (); DisableLvtInterrupts (); - RegisterTableList = (CPU_REGISTER_TABLE *) (UINTN) mAcpiCpuData.RegisterTable; - InitApicId = GetInitialApicId (); - for (Index = 0; Index < mAcpiCpuData.NumberOfCpus; Index++) { -if (RegisterTableList[Index].InitialApicId == InitApicId) { - SetProcessorRegister (&RegisterTableList[Index]); - break; -} - } + SetProcessorRegister ((CPU_REGISTER_TABLE *) (UINTN) mAcpiCpuData.RegisterTable, mAcpiCpuData.NumberOfCpus); // // Place AP into the safe code, count down the number with lock mechanism in the safe code. @@ -475,34 +464,20 @@ PrepareApStartupVector ( **/ VOID -EarlyInitializeCpu ( +InitializeCpuBeforeRebase ( VOID ) { - CPU_REGISTER_TABLE *RegisterTableList; - UINT32 InitApicId; - UINTN Index; - LoadMtrrData (mAcpiCpuData.MtrrTable); - // - // Find processor number for this CPU. - // - RegisterTableList = (CPU_REGISTER_TABLE *) (UINTN) mAcpiCpuData.PreSmmInitRegisterTable; - InitApicId = GetInitialApicId (); - for (Index = 0; Index < mAcpiCpuData.NumberOfCpus; Index++) { -if (RegisterTableList[Index].InitialApicId == InitApicId) { - SetProcessorRegister (&RegisterTableList[Index]); - break; -} - } + SetProcessorRegister ((CPU_REGISTER_TABLE *) (UINTN) mAcpiCpuData.PreSmmInitRegisterTable, mAcpiCpuData.NumberOfCpus); ProgramVirtualWireMode (); PrepareApStartupVector (mAcpiCpuData.StartupVector); mNumberToFinish = mAcpiCpuData.NumberOfCpus - 1; - mExchangeInfo->ApFunction = (VOID *) (UINTN) MPRendezvousProcedure; + mExchangeInfo->ApFunction = (VOID *) (UINTN) InitializeAp; // // Execute code for before SmmBaseReloc. Note: This flag is maintained across S3 boots. @@ -527,22 +502,11 @@ EarlyInitializeCpu ( **/ VOID -InitializeCpu ( +InitializeCpuAfterRebase ( VOID ) { - CPU_REGISTER_TABLE *RegisterTableList; - UINT32 InitApicId; - UINTN Index; - - RegisterTableList = (CPU_REGISTER_TABLE *) (UINTN) mAcpiCpuData.RegisterTable; - InitApicId = GetInitialApicId (); - for (Index = 0; Index < mAcpiCp