diff options
Diffstat (limited to 'MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTableSmm/FirmwarePerformanceSmm.c')
-rw-r--r-- | MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTableSmm/FirmwarePerformanceSmm.c | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTableSmm/FirmwarePerformanceSmm.c b/MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTableSmm/FirmwarePerformanceSmm.c new file mode 100644 index 0000000000..19a2fe68a9 --- /dev/null +++ b/MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTableSmm/FirmwarePerformanceSmm.c @@ -0,0 +1,165 @@ +/** @file
+ This module update S3 Suspend Performance Record in ACPI Firmware Performance Data Table.
+
+ This module register report status code listener to collect performance data
+ for S3 Suspend Performance Record.
+
+ Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
+ 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 <PiSmm.h>
+
+#include <IndustryStandard/Acpi50.h>
+
+#include <Protocol/SmmReportStatusCodeHandler.h>
+
+#include <Guid/FirmwarePerformance.h>
+
+#include <Library/SmmServicesTableLib.h>
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+#include <Library/TimerLib.h>
+#include <Library/LockBoxLib.h>
+#include <Library/PcdLib.h>
+
+EFI_SMM_RSC_HANDLER_PROTOCOL *mRscHandlerProtocol = NULL;
+UINT64 mSuspendStartTime = 0;
+BOOLEAN mS3SuspendLockBoxSaved = FALSE;
+
+/**
+ Report status code listener for SMM. This is used to record the performance
+ data for S3 Suspend Start and S3 Suspend End in FPDT.
+
+ @param[in] CodeType Indicates the type of status code being reported.
+ @param[in] Value Describes the current status of a hardware or software entity.
+ This included information about the class and subclass that is used to
+ classify the entity as well as an operation.
+ @param[in] Instance The enumeration of a hardware or software entity within
+ the system. Valid instance numbers start with 1.
+ @param[in] CallerId This optional parameter may be used to identify the caller.
+ This parameter allows the status code driver to apply different rules to
+ different callers.
+ @param[in] Data This optional parameter may be used to pass additional data.
+
+ @retval EFI_SUCCESS Status code is what we expected.
+ @retval EFI_UNSUPPORTED Status code not supported.
+
+**/
+EFI_STATUS
+EFIAPI
+FpdtStatusCodeListenerSmm (
+ IN EFI_STATUS_CODE_TYPE CodeType,
+ IN EFI_STATUS_CODE_VALUE Value,
+ IN UINT32 Instance,
+ IN EFI_GUID *CallerId,
+ IN EFI_STATUS_CODE_DATA *Data
+ )
+{
+ EFI_STATUS Status;
+ UINT64 CurrentTime;
+ EFI_ACPI_5_0_FPDT_S3_SUSPEND_RECORD S3SuspendRecord;
+
+ //
+ // Check whether status code is what we are interested in.
+ //
+ if ((CodeType & EFI_STATUS_CODE_TYPE_MASK) != EFI_PROGRESS_CODE) {
+ return EFI_UNSUPPORTED;
+ }
+ if ((Value != PcdGet32 (PcdProgressCodeS3SuspendStart)) &&
+ (Value != PcdGet32 (PcdProgressCodeS3SuspendEnd))) {
+ return EFI_UNSUPPORTED;
+ }
+
+ //
+ // Retrieve current time.
+ //
+ CurrentTime = GetTimeInNanoSecond (GetPerformanceCounter ());
+
+ if (Value == PcdGet32 (PcdProgressCodeS3SuspendStart)) {
+ //
+ // S3 Suspend started, record the performance data and return.
+ //
+ mSuspendStartTime = CurrentTime;
+ return EFI_SUCCESS;
+ }
+
+ //
+ // We are going to S3 sleep, record S3 Suspend End performance data.
+ //
+ S3SuspendRecord.SuspendStart = mSuspendStartTime;
+ S3SuspendRecord.SuspendEnd = CurrentTime;
+
+ //
+ // Save S3 suspend performance data to lock box, it will be used by Firmware Performance PEIM.
+ //
+ if (!mS3SuspendLockBoxSaved) {
+ Status = SaveLockBox (
+ &gEfiFirmwarePerformanceGuid,
+ &S3SuspendRecord,
+ sizeof (EFI_ACPI_5_0_FPDT_S3_SUSPEND_RECORD)
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ mS3SuspendLockBoxSaved = TRUE;
+ } else {
+ Status = UpdateLockBox (
+ &gEfiFirmwarePerformanceGuid,
+ 0,
+ &S3SuspendRecord,
+ sizeof (EFI_ACPI_5_0_FPDT_S3_SUSPEND_RECORD)
+ );
+ ASSERT_EFI_ERROR (Status);
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ The module Entry Point of the Firmware Performance Data Table SMM driver.
+
+ @param[in] ImageHandle The firmware allocated handle for the EFI image.
+ @param[in] SystemTable A pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS The entry point is executed successfully.
+ @retval Other Some error occurs when executing this entry point.
+
+**/
+EFI_STATUS
+EFIAPI
+FirmwarePerformanceSmmEntryPoint (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ if (FeaturePcdGet (PcdFirmwarePerformanceDataTableS3Support)) {
+ EFI_STATUS Status;
+
+ //
+ // Get SMM Report Status Code Handler Protocol.
+ //
+ Status = gSmst->SmmLocateProtocol (
+ &gEfiSmmRscHandlerProtocolGuid,
+ NULL,
+ (VOID **) &mRscHandlerProtocol
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Register report status code listener for S3 Suspend Start and End.
+ //
+ Status = mRscHandlerProtocol->Register (FpdtStatusCodeListenerSmm);
+ ASSERT_EFI_ERROR (Status);
+
+ return Status;
+ } else {
+ return EFI_UNSUPPORTED;
+ }
+}
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