Unix version of EFI emulator
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2182 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
tgingold
399
EdkUnixPkg/Library/EdkGenericBdsLib/Performance.c
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399
EdkUnixPkg/Library/EdkGenericBdsLib/Performance.c
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/*++
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Copyright (c) 2006, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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Performance.c
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Abstract:
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This file include the file which can help to get the system
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performance, all the function will only include if the performance
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switch is set.
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--*/
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#include "Performance.h"
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VOID
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ClearDebugRegisters (
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VOID
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)
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{
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//
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// BugBug: We should not need to do this. We need to root cause this bug!!!!
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//
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AsmWriteDr0 (0);
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AsmWriteDr1 (0);
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}
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STATIC
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VOID
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GetShortPdbFileName (
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CHAR8 *PdbFileName,
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CHAR8 *GaugeString
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)
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/*++
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Routine Description:
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Arguments:
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Returns:
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--*/
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{
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UINTN Index;
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UINTN Index1;
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UINTN StartIndex;
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UINTN EndIndex;
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if (PdbFileName == NULL) {
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AsciiStrCpy (GaugeString, " ");
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} else {
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StartIndex = 0;
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for (EndIndex = 0; PdbFileName[EndIndex] != 0; EndIndex++)
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;
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for (Index = 0; PdbFileName[Index] != 0; Index++) {
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if (PdbFileName[Index] == '\\') {
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StartIndex = Index + 1;
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}
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if (PdbFileName[Index] == '.') {
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EndIndex = Index;
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}
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}
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Index1 = 0;
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for (Index = StartIndex; Index < EndIndex; Index++) {
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GaugeString[Index1] = PdbFileName[Index];
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Index1++;
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if (Index1 == PERF_TOKEN_LENGTH - 1) {
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break;
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}
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}
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GaugeString[Index1] = 0;
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}
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return ;
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}
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STATIC
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CHAR8 *
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GetPdbPath (
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VOID *ImageBase
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)
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/*++
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Routine Description:
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Located PDB path name in PE image
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Arguments:
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ImageBase - base of PE to search
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Returns:
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Pointer into image at offset of PDB file name if PDB file name is found,
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Otherwise a pointer to an empty string.
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--*/
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{
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PE_COFF_LOADER_IMAGE_CONTEXT ImageContext;
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ZeroMem (&ImageContext, sizeof (ImageContext));
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ImageContext.Handle = ImageBase;
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ImageContext.ImageRead = PeCoffLoaderImageReadFromMemory;
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PeCoffLoaderGetImageInfo (&ImageContext);
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return ImageContext.PdbPointer;
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}
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STATIC
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VOID
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GetNameFromHandle (
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IN EFI_HANDLE Handle,
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OUT CHAR8 *GaugeString
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)
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{
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EFI_STATUS Status;
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EFI_LOADED_IMAGE_PROTOCOL *Image;
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CHAR8 *PdbFileName;
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EFI_DRIVER_BINDING_PROTOCOL *DriverBinding;
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AsciiStrCpy (GaugeString, " ");
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//
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// Get handle name from image protocol
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//
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Status = gBS->HandleProtocol (
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Handle,
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&gEfiLoadedImageProtocolGuid,
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(VOID **)&Image
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);
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if (EFI_ERROR (Status)) {
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Status = gBS->OpenProtocol (
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Handle,
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&gEfiDriverBindingProtocolGuid,
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(VOID **) &DriverBinding,
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NULL,
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NULL,
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EFI_OPEN_PROTOCOL_GET_PROTOCOL
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);
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if (EFI_ERROR (Status)) {
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return ;
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}
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//
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// Get handle name from image protocol
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//
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Status = gBS->HandleProtocol (
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DriverBinding->ImageHandle,
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&gEfiLoadedImageProtocolGuid,
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(VOID **)&Image
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);
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}
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PdbFileName = GetPdbPath (Image->ImageBase);
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if (PdbFileName != NULL) {
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GetShortPdbFileName (PdbFileName, GaugeString);
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}
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return ;
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}
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VOID
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WriteBootToOsPerformanceData (
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VOID
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)
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/*++
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Routine Description:
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Allocates a block of memory and writes performance data of booting to OS into it.
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Arguments:
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None
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Returns:
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None
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--*/
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{
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EFI_STATUS Status;
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EFI_CPU_ARCH_PROTOCOL *Cpu;
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EFI_PHYSICAL_ADDRESS mAcpiLowMemoryBase;
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UINT32 mAcpiLowMemoryLength;
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UINT32 LimitCount;
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PERF_HEADER mPerfHeader;
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PERF_DATA mPerfData;
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EFI_HANDLE *Handles;
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UINTN NoHandles;
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CHAR8 GaugeString[PERF_TOKEN_LENGTH];
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UINT8 *Ptr;
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UINT32 mIndex;
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UINT64 Ticker;
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UINT64 Freq;
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UINT32 Duration;
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UINT64 CurrentTicker;
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UINT64 TimerPeriod;
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UINTN LogEntryKey;
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CONST VOID *Handle;
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CONST CHAR8 *Token;
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CONST CHAR8 *Module;
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UINT64 StartTicker;
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UINT64 EndTicker;
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//
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// Retrive time stamp count as early as possilbe
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//
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Ticker = AsmReadTsc ();
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//
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// Allocate a block of memory that contain performance data to OS
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//
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mAcpiLowMemoryBase = 0xFFFFFFFF;
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Status = gBS->AllocatePages (
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AllocateMaxAddress,
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EfiReservedMemoryType,
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4,
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&mAcpiLowMemoryBase
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);
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if (EFI_ERROR (Status)) {
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return ;
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}
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mAcpiLowMemoryLength = EFI_PAGES_TO_SIZE(4);
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Ptr = (UINT8 *) ((UINT32) mAcpiLowMemoryBase + sizeof (PERF_HEADER));
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LimitCount = (mAcpiLowMemoryLength - sizeof (PERF_HEADER)) / sizeof (PERF_DATA);
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//
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// Initialize performance data structure
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//
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ZeroMem (&mPerfHeader, sizeof (PERF_HEADER));
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//
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// Get CPU frequency
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//
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Status = gBS->LocateProtocol (
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&gEfiCpuArchProtocolGuid,
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NULL,
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(VOID **)&Cpu
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);
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if (EFI_ERROR (Status)) {
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gBS->FreePages (mAcpiLowMemoryBase, 4);
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return ;
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}
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//
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// Get Cpu Frequency
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//
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Status = Cpu->GetTimerValue (Cpu, 0, &(CurrentTicker), &TimerPeriod);
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if (EFI_ERROR (Status)) {
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gBS->FreePages (mAcpiLowMemoryBase, 4);
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return ;
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}
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Freq = DivU64x32 (1000000000000UL, (UINTN) TimerPeriod);
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mPerfHeader.CpuFreq = Freq;
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//
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// Record BDS raw performance data
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//
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mPerfHeader.BDSRaw = Ticker;
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//
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// Put Detailed performance data into memory
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//
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Handles = NULL;
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Status = gBS->LocateHandleBuffer (
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AllHandles,
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NULL,
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NULL,
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&NoHandles,
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&Handles
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);
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if (EFI_ERROR (Status)) {
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gBS->FreePages (mAcpiLowMemoryBase, 4);
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return ;
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}
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//
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// Get DXE drivers performance
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//
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for (mIndex = 0; mIndex < NoHandles; mIndex++) {
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Ticker = 0;
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LogEntryKey = 0;
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while ((LogEntryKey = GetPerformanceMeasurement (
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LogEntryKey,
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&Handle,
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&Token,
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&Module,
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&StartTicker,
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&EndTicker)) != 0) {
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if ((Handle == Handles[mIndex]) && (StartTicker < EndTicker)) {
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Ticker += (EndTicker - StartTicker);
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}
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}
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Duration = (UINT32) DivU64x32 (
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Ticker,
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(UINT32) Freq
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);
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if (Duration > 0) {
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ZeroMem (&mPerfData, sizeof (PERF_DATA));
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GetNameFromHandle (Handles[mIndex], GaugeString);
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AsciiStrCpy (mPerfData.Token, GaugeString);
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mPerfData.Duration = Duration;
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CopyMem (Ptr, &mPerfData, sizeof (PERF_DATA));
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Ptr += sizeof (PERF_DATA);
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mPerfHeader.Count++;
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if (mPerfHeader.Count == LimitCount) {
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goto Done;
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}
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}
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}
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gBS->FreePool (Handles);
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//
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// Get inserted performance data
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//
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LogEntryKey = 0;
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while ((LogEntryKey = GetPerformanceMeasurement (
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LogEntryKey,
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&Handle,
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&Token,
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&Module,
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&StartTicker,
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&EndTicker)) != 0) {
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if ((Handle == NULL) && (StartTicker <= EndTicker)) {
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ZeroMem (&mPerfData, sizeof (PERF_DATA));
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AsciiStrnCpy (mPerfData.Token, Token, DXE_PERFORMANCE_STRING_SIZE);
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mPerfData.Duration = (UINT32) DivU64x32 (
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EndTicker - StartTicker,
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(UINT32) Freq
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);
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CopyMem (Ptr, &mPerfData, sizeof (PERF_DATA));
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Ptr += sizeof (PERF_DATA);
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mPerfHeader.Count++;
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if (mPerfHeader.Count == LimitCount) {
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goto Done;
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}
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}
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}
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Done:
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ClearDebugRegisters ();
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mPerfHeader.Signiture = 0x66726550;
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//
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// Put performance data to memory
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//
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CopyMem (
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(UINT32 *) (UINT32) mAcpiLowMemoryBase,
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&mPerfHeader,
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sizeof (PERF_HEADER)
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);
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gRT->SetVariable (
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L"PerfDataMemAddr",
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&gEfiGlobalVariableGuid,
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EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
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sizeof (UINT32),
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(VOID *) &mAcpiLowMemoryBase
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);
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return ;
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}
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