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/*++
Copyright (c) 2004 - 2012, 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 FPDT performance structures.
--*/
#include "Tiano.h"
#include "Pei.h"
#include "PeiLib.h"
#include "PeiHob.h"
#include "CpuIA32.h"
#include "EfiCommonLib.h"
#include EFI_GUID_DEFINITION (PeiPerformanceHob)
#define MSR_PLATFORM_INFO 0xce
#define MAX_NON_TURBO_RATIO_OFFSET 8
#define MAX_NON_TURBO_RATIO_MASK 0xff
#define LOCAL_APIC_BASE 0xfee00000
#define APIC_ID_REGISTER 0x20
#define MSR_EXT_XAPIC_LOGICAL_APIC_ID 0x802
#define MSR_XAPIC_BASE 0x1b
#define MSR_XAPIC_BASE_MASK 0x0c00
#define MAX_FIRMWARE_PERFORMANCE_ENTRIES 80
//
// Prototype functions
//
UINT64
IA32API
EfiReadMsr (
IN UINT32 Index
);
UINT64 GetTimeInNanoSec (
UINT64 Ticker
)
/*++
Routine Description:
Internal routine to convert TSC value into nano second value
Arguments:
Ticker - OPTIONAL. TSC value supplied by caller function
Returns:
UINT64 - returns calculated timer value
--*/
{
UINT64 Tick, pi;
UINT8 Ratio;
if(Ticker != 0){
Tick = Ticker;
} else {
Tick = EfiReadTsc();
}
pi = EfiReadMsr(MSR_PLATFORM_INFO);
Ratio = (UINT8)( ((UINT32)(UINTN)RShiftU64(pi, MAX_NON_TURBO_RATIO_OFFSET)) & MAX_NON_TURBO_RATIO_MASK);
return (UINT64)DivU64x32(MultU64x32(Tick, 10), (UINTN)(Ratio), NULL);
}
UINT32 GetApicId (
VOID
)
/*++
Routine Description:
Internal routine to retrieve current APIC Id
Arguments:
None
Returns:
UINT32 - returns Apic Id value
--*/
{
BOOLEAN x2ApicEnabled;
UINT32 ApicId;
x2ApicEnabled = (BOOLEAN)(((EfiReadMsr (MSR_XAPIC_BASE)) & (MSR_XAPIC_BASE_MASK)) == MSR_XAPIC_BASE_MASK);
if (x2ApicEnabled) {
ApicId = (UINT32) EfiReadMsr (MSR_EXT_XAPIC_LOGICAL_APIC_ID);
} else {
ApicId = (UINT8) (*(volatile UINT32 *) (UINTN) (LOCAL_APIC_BASE + APIC_ID_REGISTER) >> 24);
}
return ApicId;
}
VOID
PeiPerfMeasureEx (
EFI_PEI_SERVICES **PeiServices,
IN UINT16 *Token,
IN EFI_FFS_FILE_HEADER *FileHeader,
IN UINT16 Identifier,
IN BOOLEAN EntryExit,
IN UINT64 Value
)
/*++
Routine Description:
Log an extended timestamp value.
Arguments:
PeiServices - Pointer to the PEI Core Services table
Token - Pointer to Token Name
FileHeader - Pointer to the file header
Identifier - Identifier of the record
EntryExit - Indicates start or stop measurement
Value - The TSC value
Returns:
None
--*/
{
EFI_STATUS Status;
EFI_PEI_PPI_DESCRIPTOR *PerfHobDescriptor;
PEI_FIRMWARE_PERFORMANCE_HOB *FirmwarePerformanceHob;
PEI_GUID_EVENT_REC *PeiGuidRec;
//
// Locate the Pei Performance Log Hob.
//
Status = (*PeiServices)->LocatePpi (
PeiServices,
&gPeiFirmwarePerformanceGuid,
0,
&PerfHobDescriptor,
NULL
);
if (!EFI_ERROR(Status)) {
FirmwarePerformanceHob = (PEI_FIRMWARE_PERFORMANCE_HOB *)(((UINT8 *)(PerfHobDescriptor)) -
((sizeof(PEI_GUID_EVENT_REC) * (MAX_FIRMWARE_PERFORMANCE_ENTRIES-1))
+ sizeof(PEI_FIRMWARE_PERFORMANCE_HOB)
)
);
//
// return if performance buffer has filled up
//
if (FirmwarePerformanceHob->NumberOfEntries >= MAX_FIRMWARE_PERFORMANCE_ENTRIES) {
return;
}
PeiGuidRec = &(FirmwarePerformanceHob->GuidEventRecord[FirmwarePerformanceHob->NumberOfEntries]);
(*PeiServices)->SetMem (PeiGuidRec, sizeof(PEI_GUID_EVENT_REC), 0);
//
// Get the GUID name
//
if (FileHeader != NULL) {
PeiGuidRec->Guid = FileHeader->Name;
}
//
// Record the time stamp nanosec value.
//
PeiGuidRec->Timestamp = GetTimeInNanoSec(Value);
//
// Copy the progress ID
//
PeiGuidRec->ProgressID = Identifier;
//
// Record the APIC Id
//
PeiGuidRec->ApicID = GetApicId();
//
// Increment the number of valid log entries.
//
FirmwarePerformanceHob->NumberOfEntries++;
}
return;
}
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;
PEI_FIRMWARE_PERFORMANCE_HOB *FirmwarePerformanceHob;
EFI_PEI_PPI_DESCRIPTOR *PerfHobDescriptor;
PEI_GUID_EVENT_REC *PeiGuidRec;
//
// Locate the Pei Performance Log Hob.
//
Status = (*PeiServices)->LocatePpi (
PeiServices,
&gPeiFirmwarePerformanceGuid,
0,
&PerfHobDescriptor,
NULL
);
//
// If the Performance Hob was not found, build and install one.
//
if (EFI_ERROR(Status)) {
Status = PeiBuildHobGuid (
PeiServices,
&gPeiFirmwarePerformanceGuid,
(sizeof(PEI_FIRMWARE_PERFORMANCE_HOB) +
((MAX_FIRMWARE_PERFORMANCE_ENTRIES-1) *
sizeof(PEI_GUID_EVENT_REC)) +
sizeof(EFI_PEI_PPI_DESCRIPTOR)
),
&Hob
);
ASSERT_PEI_ERROR(PeiServices, Status);
FirmwarePerformanceHob = (PEI_FIRMWARE_PERFORMANCE_HOB *)(Hob+1);
FirmwarePerformanceHob->NumberOfEntries = 0;
FirmwarePerformanceHob->Reserved = 0;
PerfHobDescriptor = (EFI_PEI_PPI_DESCRIPTOR *)((UINT8 *)(FirmwarePerformanceHob+1) +
(sizeof(PEI_GUID_EVENT_REC) *
(MAX_FIRMWARE_PERFORMANCE_ENTRIES-1)
)
);
PerfHobDescriptor->Flags = (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST);
PerfHobDescriptor->Guid = &gPeiFirmwarePerformanceGuid;
PerfHobDescriptor->Ppi = NULL;
(*PeiServices)->InstallPpi (PeiServices, PerfHobDescriptor);
ASSERT_PEI_ERROR(PeiServices, Status);
}
FirmwarePerformanceHob = (PEI_FIRMWARE_PERFORMANCE_HOB *)(((UINT8 *)(PerfHobDescriptor)) -
((sizeof(PEI_GUID_EVENT_REC) *
(MAX_FIRMWARE_PERFORMANCE_ENTRIES-1)
)
+ sizeof(PEI_FIRMWARE_PERFORMANCE_HOB)
)
);
if (FirmwarePerformanceHob->NumberOfEntries >= MAX_FIRMWARE_PERFORMANCE_ENTRIES) {
return;
}
PeiGuidRec = &(FirmwarePerformanceHob->GuidEventRecord[FirmwarePerformanceHob->NumberOfEntries]);
(*PeiServices)->SetMem (PeiGuidRec, sizeof(PEI_GUID_EVENT_REC), 0);
//
// If not NULL pointer, copy the file name
//
if (FileHeader != NULL) {
PeiGuidRec->Guid = FileHeader->Name;
}
//
// Record the time stamp nanosec value.
//
PeiGuidRec->Timestamp = GetTimeInNanoSec(Value);
//
// Record the Progress Id based upon token field
//
if (!EfiStrCmp (Token, L"PEIM")) {
if(!EntryExit) {
PeiGuidRec->ProgressID = PEIM_START_ID;
} else {
PeiGuidRec->ProgressID = PEIM_END_ID;
}
} else if (!EfiStrCmp (Token, L"PreMem")) {
if(!EntryExit) {
PeiGuidRec->ProgressID = PREMEM_START_ID;
} else {
PeiGuidRec->ProgressID = PREMEM_END_ID;
}
} else if (!EfiStrCmp (Token, L"DisMem")) {
if(!EntryExit) {
PeiGuidRec->ProgressID = DISMEM_START_ID;
} else {
PeiGuidRec->ProgressID = DISMEM_END_ID;
}
} else if (!EfiStrCmp (Token, L"PostMem")) {
if(!EntryExit) {
PeiGuidRec->ProgressID = POSTMEM_START_ID;
} else {
PeiGuidRec->ProgressID = POSTMEM_END_ID;
}
} else {
return ;
}
//
// Record the APIC Id
//
PeiGuidRec->ApicID = GetApicId();
//
// Increment the number of valid log entries.
//
FirmwarePerformanceHob->NumberOfEntries++;
return;
}
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