tyler.durden
/
audk
mirror of https://github.com/acidanthera/audk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
audk/EdkNt32Pkg/Library/EdkGenericBdsLib/Performance.c

427 lines
11 KiB
C
Raw Blame History

/*++
Copyright (c) 2006, 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:
Performance.c
Abstract:
This file include the file which can help to get the system
performance, all the function will only include if the performance
switch is set.
--*/
#include "Performance.h"
VOID
ClearDebugRegisters (
VOID
)
{
AsmWriteDr0 (0);
AsmWriteDr1 (0);
}
STATIC
VOID
GetShortPdbFileName (
CHAR8 *PdbFileName,
CHAR8 *GaugeString
)
/*++
Routine Description:
Arguments:
Returns:
--*/
{
UINTN Index;
UINTN Index1;
UINTN StartIndex;
UINTN EndIndex;
if (PdbFileName == NULL) {
AsciiStrCpy (GaugeString, " ");
} else {
StartIndex = 0;
for (EndIndex = 0; PdbFileName[EndIndex] != 0; EndIndex++)
;
for (Index = 0; PdbFileName[Index] != 0; Index++) {
if (PdbFileName[Index] == '\\') {
StartIndex = Index + 1;
}
if (PdbFileName[Index] == '.') {
EndIndex = Index;
}
}
Index1 = 0;
for (Index = StartIndex; Index < EndIndex; Index++) {
GaugeString[Index1] = PdbFileName[Index];
Index1++;
if (Index1 == PERF_TOKEN_LENGTH - 1) {
break;
}
}
GaugeString[Index1] = 0;
}
return ;
}
STATIC
CHAR8 *
GetPdbPath (
VOID *ImageBase
)
/*++
Routine Description:
Located PDB path name in PE image
Arguments:
ImageBase - base of PE to search
Returns:
Pointer into image at offset of PDB file name if PDB file name is found,
Otherwise a pointer to an empty string.
--*/
{
CHAR8 *PdbPath;
UINT32 DirCount;
EFI_IMAGE_DOS_HEADER *DosHdr;
EFI_IMAGE_NT_HEADERS *NtHdr;
EFI_IMAGE_OPTIONAL_HEADER *OptionalHdr;
EFI_IMAGE_DATA_DIRECTORY *DirectoryEntry;
EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *DebugEntry;
VOID *CodeViewEntryPointer;
CodeViewEntryPointer = NULL;
PdbPath = NULL;
DosHdr = ImageBase;
if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {
NtHdr = (EFI_IMAGE_NT_HEADERS *) ((UINT8 *) DosHdr + DosHdr->e_lfanew);
OptionalHdr = (VOID *) &NtHdr->OptionalHeader;
DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *) &(OptionalHdr->DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);
if (DirectoryEntry->VirtualAddress != 0) {
for (DirCount = 0;
(DirCount < DirectoryEntry->Size / sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY)) && CodeViewEntryPointer == NULL;
DirCount++
) {
DebugEntry = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *) (DirectoryEntry->VirtualAddress + (UINTN) ImageBase + DirCount * sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY));
if (DebugEntry->Type == EFI_IMAGE_DEBUG_TYPE_CODEVIEW) {
CodeViewEntryPointer = (VOID *) ((UINTN) DebugEntry->RVA + (UINTN) ImageBase);
switch (*(UINT32 *) CodeViewEntryPointer) {
case CODEVIEW_SIGNATURE_NB10:
PdbPath = (CHAR8 *) CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY);
break;
case CODEVIEW_SIGNATURE_RSDS:
PdbPath = (CHAR8 *) CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_RSDS_ENTRY);
break;
default:
break;
}
}
}
}
}
return PdbPath;
}
STATIC
VOID
GetNameFromHandle (
IN EFI_HANDLE Handle,
OUT CHAR8 *GaugeString
)
{
EFI_STATUS Status;
EFI_LOADED_IMAGE_PROTOCOL *Image;
CHAR8 *PdbFileName;
EFI_DRIVER_BINDING_PROTOCOL *DriverBinding;
AsciiStrCpy (GaugeString, " ");
//
// Get handle name from image protocol
//
Status = gBS->HandleProtocol (
Handle,
&gEfiLoadedImageProtocolGuid,
&Image
);
if (EFI_ERROR (Status)) {
Status = gBS->OpenProtocol (
Handle,
&gEfiDriverBindingProtocolGuid,
(VOID **) &DriverBinding,
NULL,
NULL,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return ;
}
//
// Get handle name from image protocol
//
Status = gBS->HandleProtocol (
DriverBinding->ImageHandle,
&gEfiLoadedImageProtocolGuid,
&Image
);
}
PdbFileName = GetPdbPath (Image->ImageBase);
if (PdbFileName != NULL) {
GetShortPdbFileName (PdbFileName, GaugeString);
}
return ;
}
VOID
WriteBootToOsPerformanceData (
VOID
)
/*++
Routine Description:
Allocates a block of memory and writes performance data of booting to OS into it.
Arguments:
None
Returns:
None
--*/
{
EFI_STATUS Status;
EFI_CPU_ARCH_PROTOCOL *Cpu;
EFI_PHYSICAL_ADDRESS mAcpiLowMemoryBase;
UINT32 mAcpiLowMemoryLength;
UINT32 LimitCount;
PERF_HEADER mPerfHeader;
PERF_DATA mPerfData;
EFI_HANDLE *Handles;
UINTN NoHandles;
CHAR8 GaugeString[PERF_TOKEN_LENGTH];
UINT8 *Ptr;
UINT32 mIndex;
UINT64 Ticker;
UINT64 Freq;
UINT32 Duration;
UINT64 CurrentTicker;
UINT64 TimerPeriod;
UINTN LogEntryKey;
CONST VOID *Handle;
CONST CHAR8 *Token;
CONST CHAR8 *Module;
UINT64 StartTicker;
UINT64 EndTicker;
//
// Retrive time stamp count as early as possilbe
//
Ticker = AsmReadTsc ();
//
// Allocate a block of memory that contain performance data to OS
//
Status = gBS->AllocatePages (
AllocateAnyPages,
EfiACPIReclaimMemory,
4,
&mAcpiLowMemoryBase
);
if (EFI_ERROR (Status)) {
return ;
}
mAcpiLowMemoryLength = 0x1000;
Ptr = (UINT8 *) ((UINT32) mAcpiLowMemoryBase + sizeof (PERF_HEADER));
LimitCount = (mAcpiLowMemoryLength - sizeof (PERF_HEADER)) / sizeof (PERF_DATA);
//
// Initialize performance data structure
//
ZeroMem (&mPerfHeader, sizeof (PERF_HEADER));
//
// Get CPU frequency
//
Status = gBS->LocateProtocol (
&gEfiCpuArchProtocolGuid,
NULL,
&Cpu
);
if (EFI_ERROR (Status)) {
gBS->FreePages (mAcpiLowMemoryBase, 1);
return ;
}
//
// Get Cpu Frequency
//
Status = Cpu->GetTimerValue (Cpu, 0, &(CurrentTicker), &TimerPeriod);
if (EFI_ERROR (Status)) {
gBS->FreePages (mAcpiLowMemoryBase, 1);
return ;
}
Freq = DivU64x32 (1000000000000, (UINTN) TimerPeriod);
mPerfHeader.CpuFreq = Freq;
//
// Record BDS raw performance data
//
mPerfHeader.BDSRaw = Ticker;
//
// Put Detailed performance data into memory
//
Handles = NULL;
Status = gBS->LocateHandleBuffer (
AllHandles,
NULL,
NULL,
&NoHandles,
&Handles
);
if (EFI_ERROR (Status)) {
gBS->FreePages (mAcpiLowMemoryBase, 1);
return ;
}
//
// Get DXE drivers performance
//
for (mIndex = 0; mIndex < NoHandles; mIndex++) {
Ticker = 0;
LogEntryKey = 0;
while ((LogEntryKey = GetPerformanceMeasurement (
LogEntryKey,
&Handle,
&Token,
&Module,
&StartTicker,
&EndTicker)) != 0) {
if ((Handle == Handles[mIndex]) && (StartTicker < EndTicker)) {
Ticker += (EndTicker - StartTicker);
}
}
Duration = (UINT32) DivU64x32 (
Ticker,
(UINT32) Freq
);
if (Duration > 0) {
ZeroMem (&mPerfData, sizeof (PERF_DATA));
GetNameFromHandle (Handles[mIndex], GaugeString);
AsciiStrCpy (mPerfData.Token, GaugeString);
mPerfData.Duration = Duration;
CopyMem (Ptr, &mPerfData, sizeof (PERF_DATA));
Ptr += sizeof (PERF_DATA);
mPerfHeader.Count++;
if (mPerfHeader.Count == LimitCount) {
goto Done;
}
}
}
gBS->FreePool (Handles);
//
// Get inserted performance data
//
LogEntryKey = 0;
while ((LogEntryKey = GetPerformanceMeasurement (
LogEntryKey,
&Handle,
&Token,
&Module,
&StartTicker,
&EndTicker)) != 0) {
if ((Handle == NULL) && (StartTicker <= EndTicker)) {
ZeroMem (&mPerfData, sizeof (PERF_DATA));
AsciiStrnCpy (mPerfData.Token, Token, DXE_PERFORMANCE_STRING_SIZE);
mPerfData.Duration = (UINT32) DivU64x32 (
EndTicker - StartTicker,
(UINT32) Freq
);
CopyMem (Ptr, &mPerfData, sizeof (PERF_DATA));
Ptr += sizeof (PERF_DATA);
mPerfHeader.Count++;
if (mPerfHeader.Count == LimitCount) {
goto Done;
}
}
}
Done:
ClearDebugRegisters ();
mPerfHeader.Signiture = 0x66726550;
//
// Put performance data to memory
//
CopyMem (
(UINT32 *) (UINT32) mAcpiLowMemoryBase,
&mPerfHeader,
sizeof (PERF_HEADER)
);
gRT->SetVariable (
L"PerfDataMemAddr",
&gEfiGlobalVariableGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
sizeof (UINT32),
(VOID *) &mAcpiLowMemoryBase
);
return ;
}
Reference in New Issue View Git Blame Copy Permalink