X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=UefiCpuPkg%2FLibrary%2FCpuCommonFeaturesLib%2FC1e.c;h=47116355a8ff392d0277a18f49d3f3cf8a5f3382;hp=116590fecd88b957f6afe363a3e821ecf6968b86;hb=80c4b236389fb246dfd5c4f28e625600974a575d;hpb=028db58d1f5aebb973a00dd30118f05f6284e5c4 diff --git a/UefiCpuPkg/Library/CpuCommonFeaturesLib/C1e.c b/UefiCpuPkg/Library/CpuCommonFeaturesLib/C1e.c index 116590fecd..47116355a8 100644 --- a/UefiCpuPkg/Library/CpuCommonFeaturesLib/C1e.c +++ b/UefiCpuPkg/Library/CpuCommonFeaturesLib/C1e.c @@ -1,79 +1,79 @@ -/** @file - C1E feature. - - Copyright (c) 2017, Intel Corporation. All rights reserved.
- This program and the accompanying materials - are licensed and made available under the terms and conditions of the BSD License - which accompanies this distribution. The full text of the license may be found at - http://opensource.org/licenses/bsd-license.php - - THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, - WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. - -**/ - -#include "CpuCommonFeatures.h" - -/** - Detects if C1E feature supported on current processor. - - @param[in] ProcessorNumber The index of the CPU executing this function. - @param[in] CpuInfo A pointer to the REGISTER_CPU_FEATURE_INFORMATION - structure for the CPU executing this function. - @param[in] ConfigData A pointer to the configuration buffer returned - by CPU_FEATURE_GET_CONFIG_DATA. NULL if - CPU_FEATURE_GET_CONFIG_DATA was not provided in - RegisterCpuFeature(). - - @retval TRUE C1E feature is supported. - @retval FALSE C1E feature is not supported. - - @note This service could be called by BSP/APs. -**/ -BOOLEAN -EFIAPI -C1eSupport ( - IN UINTN ProcessorNumber, - IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo, - IN VOID *ConfigData OPTIONAL - ) -{ - return IS_NEHALEM_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel); -} - -/** - Initializes C1E feature to specific state. - - @param[in] ProcessorNumber The index of the CPU executing this function. - @param[in] CpuInfo A pointer to the REGISTER_CPU_FEATURE_INFORMATION - structure for the CPU executing this function. - @param[in] ConfigData A pointer to the configuration buffer returned - by CPU_FEATURE_GET_CONFIG_DATA. NULL if - CPU_FEATURE_GET_CONFIG_DATA was not provided in - RegisterCpuFeature(). - @param[in] State If TRUE, then the C1E feature must be enabled. - If FALSE, then the C1E feature must be disabled. - - @retval RETURN_SUCCESS C1E feature is initialized. - - @note This service could be called by BSP only. -**/ -RETURN_STATUS -EFIAPI -C1eInitialize ( - IN UINTN ProcessorNumber, - IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo, - IN VOID *ConfigData, OPTIONAL - IN BOOLEAN State - ) -{ - CPU_REGISTER_TABLE_WRITE_FIELD ( - ProcessorNumber, - Msr, - MSR_NEHALEM_POWER_CTL, - MSR_NEHALEM_POWER_CTL_REGISTER, - Bits.C1EEnable, - (State) ? 1 : 0 - ); - return RETURN_SUCCESS; -} +/** @file + C1E feature. + + Copyright (c) 2017, Intel Corporation. All rights reserved.
+ This program and the accompanying materials + are licensed and made available under the terms and conditions of the BSD License + which accompanies this distribution. The full text of the license may be found at + http://opensource.org/licenses/bsd-license.php + + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + +#include "CpuCommonFeatures.h" + +/** + Detects if C1E feature supported on current processor. + + @param[in] ProcessorNumber The index of the CPU executing this function. + @param[in] CpuInfo A pointer to the REGISTER_CPU_FEATURE_INFORMATION + structure for the CPU executing this function. + @param[in] ConfigData A pointer to the configuration buffer returned + by CPU_FEATURE_GET_CONFIG_DATA. NULL if + CPU_FEATURE_GET_CONFIG_DATA was not provided in + RegisterCpuFeature(). + + @retval TRUE C1E feature is supported. + @retval FALSE C1E feature is not supported. + + @note This service could be called by BSP/APs. +**/ +BOOLEAN +EFIAPI +C1eSupport ( + IN UINTN ProcessorNumber, + IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo, + IN VOID *ConfigData OPTIONAL + ) +{ + return IS_NEHALEM_PROCESSOR (CpuInfo->DisplayFamily, CpuInfo->DisplayModel); +} + +/** + Initializes C1E feature to specific state. + + @param[in] ProcessorNumber The index of the CPU executing this function. + @param[in] CpuInfo A pointer to the REGISTER_CPU_FEATURE_INFORMATION + structure for the CPU executing this function. + @param[in] ConfigData A pointer to the configuration buffer returned + by CPU_FEATURE_GET_CONFIG_DATA. NULL if + CPU_FEATURE_GET_CONFIG_DATA was not provided in + RegisterCpuFeature(). + @param[in] State If TRUE, then the C1E feature must be enabled. + If FALSE, then the C1E feature must be disabled. + + @retval RETURN_SUCCESS C1E feature is initialized. + + @note This service could be called by BSP only. +**/ +RETURN_STATUS +EFIAPI +C1eInitialize ( + IN UINTN ProcessorNumber, + IN REGISTER_CPU_FEATURE_INFORMATION *CpuInfo, + IN VOID *ConfigData, OPTIONAL + IN BOOLEAN State + ) +{ + CPU_REGISTER_TABLE_WRITE_FIELD ( + ProcessorNumber, + Msr, + MSR_NEHALEM_POWER_CTL, + MSR_NEHALEM_POWER_CTL_REGISTER, + Bits.C1EEnable, + (State) ? 1 : 0 + ); + return RETURN_SUCCESS; +}