diff options
Diffstat (limited to 'EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/Perf.c')
| -rw-r--r-- | EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/Perf.c | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/Perf.c b/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/Perf.c new file mode 100644 index 0000000000..cfc265ee66 --- /dev/null +++ b/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/Perf.c @@ -0,0 +1,233 @@ +/*++
+
+Copyright (c) 2004 - 2005, 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.
+
+Module Name:
+
+ Perf.c
+
+Abstract:
+
+ Support for performance primitives.
+
+--*/
+
+#include "Tiano.h"
+#include "Pei.h"
+#include "PeiLib.h"
+#include "PeiHob.h"
+
+#include EFI_GUID_DEFINITION (PeiPerformanceHob)
+
+//
+// Perfomance HOB data definitions
+//
+
+#define MAX_PEI_PERF_LOG_ENTRIES 28
+
+//
+// Prototype functions
+//
+EFI_STATUS
+GetTimerValue (
+ OUT UINT64 *TimerValue
+ );
+
+
+VOID
+PeiPerfMeasure (
+ EFI_PEI_SERVICES **PeiServices,
+ IN UINT16 *Token,
+ IN EFI_FFS_FILE_HEADER *FileHeader,
+ IN BOOLEAN EntryExit,
+ IN UINT64 Value
+ )
+/*++
+
+Routine Description:
+
+ Log a timestamp count.
+
+Arguments:
+
+ PeiServices - Pointer to the PEI Core Services table
+
+ Token - Pointer to Token Name
+
+ FileHeader - Pointer to the file header
+
+ EntryExit - Indicates start or stop measurement
+
+ Value - The start time or the stop time
+
+Returns:
+
+--*/
+{
+ EFI_STATUS Status;
+ EFI_HOB_GUID_TYPE *Hob;
+ EFI_HOB_GUID_DATA_PERFORMANCE_LOG *PerfHobData;
+ PEI_PERFORMANCE_MEASURE_LOG_ENTRY *Log;
+ EFI_PEI_PPI_DESCRIPTOR *PerfHobDescriptor;
+ UINT64 TimeCount;
+ INTN Index;
+ UINTN Index2;
+ EFI_GUID *Guid;
+ EFI_GUID *CheckGuid;
+
+ TimeCount = 0;
+ //
+ // Get the END time as early as possible to make it more accurate.
+ //
+ if (EntryExit) {
+ GetTimerValue (&TimeCount);
+ }
+
+ //
+ // Locate the Pei Performance Log Hob.
+ //
+ Status = (*PeiServices)->LocatePpi (
+ PeiServices,
+ &gEfiPeiPerformanceHobGuid,
+ 0,
+ &PerfHobDescriptor,
+ NULL
+ );
+
+ //
+ // If the Performance Hob was not found, build and install one.
+ //
+ if (EFI_ERROR(Status)) {
+ Status = PeiBuildHobGuid (
+ PeiServices,
+ &gEfiPeiPerformanceHobGuid,
+ (sizeof(EFI_HOB_GUID_DATA_PERFORMANCE_LOG) +
+ ((MAX_PEI_PERF_LOG_ENTRIES-1) *
+ sizeof(PEI_PERFORMANCE_MEASURE_LOG_ENTRY)) +
+ sizeof(EFI_PEI_PPI_DESCRIPTOR)
+ ),
+ &Hob
+ );
+ ASSERT_PEI_ERROR(PeiServices, Status);
+
+ PerfHobData = (EFI_HOB_GUID_DATA_PERFORMANCE_LOG *)(Hob+1);
+ PerfHobData->NumberOfEntries = 0;
+
+ PerfHobDescriptor = (EFI_PEI_PPI_DESCRIPTOR *)((UINT8 *)(PerfHobData+1) +
+ (sizeof(PEI_PERFORMANCE_MEASURE_LOG_ENTRY) *
+ (MAX_PEI_PERF_LOG_ENTRIES-1)
+ )
+ );
+ PerfHobDescriptor->Flags = (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST);
+ PerfHobDescriptor->Guid = &gEfiPeiPerformanceHobGuid;
+ PerfHobDescriptor->Ppi = NULL;
+
+ (*PeiServices)->InstallPpi (
+ PeiServices,
+ PerfHobDescriptor
+ );
+ }
+
+ PerfHobData = (EFI_HOB_GUID_DATA_PERFORMANCE_LOG *)(((UINT8 *)(PerfHobDescriptor)) -
+ ((sizeof(PEI_PERFORMANCE_MEASURE_LOG_ENTRY) *
+ (MAX_PEI_PERF_LOG_ENTRIES-1)
+ )
+ + sizeof(EFI_HOB_GUID_DATA_PERFORMANCE_LOG)
+ )
+ );
+
+ if (PerfHobData->NumberOfEntries >= MAX_PEI_PERF_LOG_ENTRIES) {
+ return;
+ }
+
+ if (!EntryExit) {
+ Log = &(PerfHobData->Log[PerfHobData->NumberOfEntries]);
+ (*PeiServices)->SetMem (Log, sizeof(PEI_PERFORMANCE_MEASURE_LOG_ENTRY), 0);
+
+ //
+ // If not NULL pointer, copy the file name
+ //
+ if (FileHeader != NULL) {
+ Log->Name = FileHeader->Name;
+ }
+
+ //
+ // Copy the description string
+ //
+ (*PeiServices)->CopyMem (
+ &(Log->DescriptionString),
+ Token,
+ (PEI_PERF_MAX_DESC_STRING-1) * sizeof(UINT16)
+ );
+
+ //
+ // Get the start time as late as possible to make it more accurate.
+ //
+ GetTimerValue (&TimeCount);
+
+ //
+ // Record the time stamp.
+ //
+ if (Value != 0) {
+ Log->StartTimeCount = Value;
+ } else {
+ Log->StartTimeCount = TimeCount;
+ }
+ Log->StopTimeCount = 0;
+
+ //
+ // Increment the number of valid log entries.
+ //
+ PerfHobData->NumberOfEntries++;
+
+ } else {
+
+ for (Index = PerfHobData->NumberOfEntries-1; Index >= 0; Index--) {
+ Log = NULL;
+ for (Index2 = 0; Index2 < PEI_PERF_MAX_DESC_STRING; Index2++) {
+ if (PerfHobData->Log[Index].DescriptionString[Index2] == 0) {
+ Log = &(PerfHobData->Log[Index]);
+ break;
+ }
+ if (PerfHobData->Log[Index].DescriptionString[Index2] !=
+ Token[Index2]) {
+ break;
+ }
+ }
+ if (Log != NULL) {
+ if (FileHeader != NULL) {
+ Guid = &(Log->Name);
+ CheckGuid = &(FileHeader->Name);
+ if ((((INT32 *)Guid)[0] == ((INT32 *)CheckGuid)[0]) &&
+ (((INT32 *)Guid)[1] == ((INT32 *)CheckGuid)[1]) &&
+ (((INT32 *)Guid)[2] == ((INT32 *)CheckGuid)[2]) &&
+ (((INT32 *)Guid)[3] == ((INT32 *)CheckGuid)[3])) {
+ if (Value != 0) {
+ Log->StopTimeCount = Value;
+ } else {
+ Log->StopTimeCount = TimeCount;
+ }
+ break;
+ }
+ } else {
+ if (Value != 0) {
+ Log->StopTimeCount = Value;
+ } else {
+ Log->StopTimeCount = TimeCount;
+ }
+ break;
+ }
+ }
+ }
+
+ }
+
+ return;
+}
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